Metadata
| Key | Value |
|---|---|
| engine | openai |
| prompt | default |
| temp | 0.2 |
| top_p | 0.95 |
| max_new_tokens | 1024 |
| n_completions | 20 |
Solutions
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch let error {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
if let jsonObject = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return jsonObject
} else {
throw ParsingError.invalidInput
}
} catch let error {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
if let jsonObject = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return jsonObject
} else {
throw ParsingError.invalidInput
}
} catch let error {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
if let jsonObject = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return jsonObject
} else {
throw ParsingError.invalidInput
}
} catch let error {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
if let jsonObject = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return jsonObject
} else {
throw ParsingError.invalidInput
}
} catch let error {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
import Foundation
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}```swift
import Foundation
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let jsonObject = try JSONSerialization.jsonObject(with: data, options: [])
guard let json = jsonObject as? JSON else {
throw ParsingError.invalidInput
}
return json
} catch {
throw ParsingError.internalError(error)
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(childrenHTML)</\(name)>"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(childrenHTML)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let content = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>"
let closeTag = "</\(name)>"
return "\(openTag)\(content)\(closeTag)"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let content = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>"
let closeTag = "</\(name)>"
return "\(openTag)\(content)\(closeTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(childrenHTML)</\(name)>"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(childrenHTML)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let content = children.map(generate).joined()
let tagOpen = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let tagClose = "</\(name)>"
return "\(tagOpen)\(content)\(tagClose)"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let content = children.map(generate).joined()
let tagOpen = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let tagClose = "</\(name)>"
return "\(tagOpen)\(content)\(tagClose)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openingTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closeTag = "</\(name)>"
return openTag + childrenString + closeTag
}
}```swift
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map(generate).joined()
let openTag = "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>"
let closeTag = "</\(name)>"
return openTag + childrenString + closeTag
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined()
let openingTag = "<\(name)\(attributesString.isEmpty ? "" : " \(attributesString)")>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined()
let openingTag = "<\(name)\(attributesString.isEmpty ? "" : " \(attributesString)")>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenString)\(closingTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
let openingTag = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenHTML)\(closingTag)"
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
let openingTag = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let closingTag = "</\(name)>"
return "\(openingTag)\(childrenHTML)\(closingTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>"
let closeTag = "</\(name)>"
return "\(openTag)\(childrenHTML)\(closeTag)"
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>"
let closeTag = "</\(name)>"
return "\(openTag)\(childrenHTML)\(closeTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let closeTag = "</\(name)>"
return openTag + childrenHTML + closeTag
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let closeTag = "</\(name)>"
return openTag + childrenHTML + closeTag
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let closeTag = "</\(name)>"
return openTag + childrenHTML + closeTag
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let childrenHTML = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let closeTag = "</\(name)>"
return openTag + childrenHTML + closeTag
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let attrsString = attrs.isEmpty ? "" : " \(attrs)"
let childrenString = children.map(generate).joined()
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let attrsString = attrs.isEmpty ? "" : " \(attrs)"
let childrenString = children.map(generate).joined()
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let attrsString = attrs.isEmpty ? "" : " \(attrs)"
let childrenString = children.map(generate).joined()
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let attrsString = attrs.isEmpty ? "" : " \(attrs)"
let childrenString = children.map(generate).joined()
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let attrsString = attrs.isEmpty ? "" : " \(attrs)"
let childrenString = children.map(generate).joined()
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let attrsString = attrs.isEmpty ? "" : " \(attrs)"
let childrenString = children.map(generate).joined()
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let content = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let closeTag = "</\(name)>"
return "\(openTag)\(content)\(closeTag)"
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let content = children.map(generate).joined()
let openTag = "<\(name)\(attrs.isEmpty ? "" : " " + attrs)>"
let closeTag = "</\(name)>"
return "\(openTag)\(content)\(closeTag)"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [HTMLNode] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined()
return "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>\(childrenString)</\(name)>"
}
}```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String: String] = [:], children: [HTMLNode] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined()
return "<\(name)\(attributes.isEmpty ? "" : " " + attributesString)>\(childrenString)</\(name)>"
}
}
```enum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var valuesStack = [Double]()
var operatorsStack = [Character]()
let precedence: [Character: Int] = [
"+": 1, "-": 1,
"*": 2, "/": 2
]
func applyOperator(_ operator: Character, _ a: Double, _ b: Double) -> Double {
switch operator {
case "+": return a + b
case "-": return a - b
case "*": return a * b
case "/": return a / b
default: fatalError("Unsupported operator \(operator)")
}
}
func processOperator(_ newOperator: Character) {
while !operatorsStack.isEmpty && precedence[operatorsStack.last!]! >= precedence[newOperator]! {
let operator = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(operator, a, b))
}
operatorsStack.append(newOperator)
}
for token in tokens {
if let value = Double(token) {
valuesStack.append(value)
} else if token == "(" {
operatorsStack.append("(")
} else if token == ")" {
while operatorsStack.last! != "(" {
let operator = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(operator, a, b))
}
operatorsStack.removeLast()
} else {
processOperator(Character(token))
}
}
while !operatorsStack.isEmpty {
let operator = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(operator, a, b))
}
return valuesStack.last!
}
func tokenize(_ expression: String) -> [String] {
var tokens = [String]()
var currentNumber = ""
for character in expression {
if character.isWhitespace {
continue
} else if character.isNumber || character == "." {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var valuesStack = [Double]()
var operatorsStack = [Character]()
let precedence: [Character: Int] = [
"+": 1, "-": 1,
"*": 2, "/": 2
]
func applyOperator(_ operator: Character, _ a: Double, _ b: Double) -> Double {
switch operator {
case "+": return a + b
case "-": return a - b
case "*": return a * b
case "/": return a / b
default: fatalError("Unsupported operator \(operator)")
}
}
func processOperator(_ newOperator: Character) {
while !operatorsStack.isEmpty && precedence[operatorsStack.last!]! >= precedence[newOperator]! {
let operator = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(operator, a, b))
}
operatorsStack.append(newOperator)
}
for token in tokens {
if let value = Double(token) {
valuesStack.append(value)
} else if token == "(" {
operatorsStack.append("(")
} else if token == ")" {
while operatorsStack.last! != "(" {
let operator = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(operator, a, b))
}
operatorsStack.removeLast()
} else {
processOperator(Character(token))
}
}
while !operatorsStack.isEmpty {
let operator = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(operator, a, b))
}
return valuesStack.last!
}
func tokenize(_ expression: String) -> [String] {
var tokens = [String]()
var currentNumber = ""
for character in expression {
if character.isWhitespace {
continue
} else if character.isNumber || character == "." {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
```switch operator { // expected expression in 'switch' statementswitch operator { // expected operator name in operator declarationlet operator = operatorsStack.removeLast() // keyword 'operator' cannot be used as an identifier herevaluesStack.append(applyOperator(operator, a, b)) // expected expression in list of expressionsvaluesStack.append(applyOperator(operator, a, b)) // ',' is not allowed in operator namesvaluesStack.append(applyOperator(operator, a, b)) // missing arguments for parameters #1, #2, #3 in calllet operator = operatorsStack.removeLast() // keyword 'operator' cannot be used as an identifier herevaluesStack.append(applyOperator(operator, a, b)) // ',' is not allowed in operator namesvaluesStack.append(applyOperator(operator, a, b)) // missing arguments for parameters #1, #2, #3 in callvaluesStack.append(applyOperator(operator, a, b)) // expected expression in list of expressionslet operator = operatorsStack.removeLast() // keyword 'operator' cannot be used as an identifier herevaluesStack.append(applyOperator(operator, a, b)) // expected expression in list of expressionsvaluesStack.append(applyOperator(operator, a, b)) // ',' is not allowed in operator namesvaluesStack.append(applyOperator(operator, a, b)) // missing arguments for parameters #1, #2, #3 in callenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var valuesStack = [Double]()
var operatorsStack = [Character]()
let precedence: [Character: Int] = [
"+": 1, "-": 1,
"*": 2, "/": 2
]
func applyOperator(_ operator: Character, _ a: Double, _ b: Double) -> Double {
switch `operator` {
case "+": return a + b
case "-": return a - b
case "*": return a * b
case "/": return a / b
default: fatalError("Unsupported operator \(`operator`)")
}
}
func processOperator(_ newOperator: Character) {
while !operatorsStack.isEmpty {
let topOperator = operatorsStack.last!
if let topPrecedence = precedence[topOperator], let newPrecedence = precedence[newOperator], topPrecedence >= newPrecedence {
operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(topOperator, a, b))
} else {
break
}
}
operatorsStack.append(newOperator)
}
for token in tokens {
if let value = Double(token) {
valuesStack.append(value)
} else if token == "(" {
operatorsStack.append("(")
} else if token == ")" {
while operatorsStack.last != "(" {
let `operator` = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(`operator`, a, b))
}
operatorsStack.removeLast() // remove '('
} else if "+-*/".contains(token) {
processOperator(Character(token))
} else {
throw CalculateError.invalidInput
}
}
while !operatorsStack.isEmpty {
let `operator` = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(`operator`, a, b))
}
return valuesStack.last!
}
private func tokenize(_ string: String) -> [String] {
var tokens = [String]()
var currentNumber = ""
for character in string {
if character.isNumber || (character == "." && !currentNumber.isEmpty) {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if "+-*/()".contains(character) {
tokens.append(String(character))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var valuesStack = [Double]()
var operatorsStack = [Character]()
let precedence: [Character: Int] = [
"+": 1, "-": 1,
"*": 2, "/": 2
]
func applyOperator(_ operator: Character, _ a: Double, _ b: Double) -> Double {
switch `operator` {
case "+": return a + b
case "-": return a - b
case "*": return a * b
case "/": return a / b
default: fatalError("Unsupported operator \(`operator`)")
}
}
func processOperator(_ newOperator: Character) {
while !operatorsStack.isEmpty {
let topOperator = operatorsStack.last!
if let topPrecedence = precedence[topOperator], let newPrecedence = precedence[newOperator], topPrecedence >= newPrecedence {
operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(topOperator, a, b))
} else {
break
}
}
operatorsStack.append(newOperator)
}
for token in tokens {
if let value = Double(token) {
valuesStack.append(value)
} else if token == "(" {
operatorsStack.append("(")
} else if token == ")" {
while operatorsStack.last != "(" {
let `operator` = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(`operator`, a, b))
}
operatorsStack.removeLast() // remove '('
} else if "+-*/".contains(token) {
processOperator(Character(token))
} else {
throw CalculateError.invalidInput
}
}
while !operatorsStack.isEmpty {
let `operator` = operatorsStack.removeLast()
let b = valuesStack.removeLast()
let a = valuesStack.removeLast()
valuesStack.append(applyOperator(`operator`, a, b))
}
return valuesStack.last!
}
private func tokenize(_ string: String) -> [String] {
var tokens = [String]()
var currentNumber = ""
for character in string {
if character.isNumber || (character == "." && !currentNumber.isEmpty) {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if "+-*/()".contains(character) {
tokens.append(String(character))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
``` // Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var numberBuffer: String = ""
for character in string {
if character.isNumber || character == "." {
numberBuffer.append(character)
} else if "+-*/()".contains(character) {
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
numberBuffer = ""
}
tokens.append(String(character))
} else if !character.isWhitespace {
return []
}
}
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
(precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token))) {
output.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token), stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var numberBuffer: String = ""
for character in string {
if character.isNumber || character == "." {
numberBuffer.append(character)
} else if "+-*/()".contains(character) {
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
numberBuffer = ""
}
tokens.append(String(character))
} else if !character.isWhitespace {
return []
}
}
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
(precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token))) {
output.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token), stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
``` // XCTAssertThrowsError failed: Expected error but no error was thrownenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ expression: String) -> [String] {
var tokens: [String] = []
var numberBuffer: String = ""
for char in expression {
if char.isNumber || (char == "." && !numberBuffer.isEmpty) {
numberBuffer.append(char)
} else if "+-*/()".contains(char) {
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
numberBuffer = ""
}
tokens.append(String(char))
} else if char.isWhitespace {
continue
} else {
return []
}
}
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
(precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token))) {
output.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ expression: String) -> [String] {
var tokens: [String] = []
var numberBuffer: String = ""
for char in expression {
if char.isNumber || (char == "." && !numberBuffer.isEmpty) {
numberBuffer.append(char)
} else if "+-*/()".contains(char) {
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
numberBuffer = ""
}
tokens.append(String(char))
} else if char.isWhitespace {
continue
} else {
return []
}
}
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
(precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token))) {
output.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
``` // XCTAssertThrowsError failed: Expected error but no error was thrownenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
var tokens = tokenize(string)
if tokens.isEmpty {
throw CalculateError.invalidInput
}
return try parseExpression(&tokens)
}
private func tokenize(_ input: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in input {
if character.isWhitespace {
continue
}
if character.isNumber || character == "." {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func parseExpression(_ tokens: inout [String]) throws -> Double {
var values = [Double]()
var operators = [String]()
while !tokens.isEmpty {
let token = tokens.removeFirst()
if let value = Double(token) {
values.append(value)
} else if token == "(" {
values.append(try parseExpression(&tokens))
} else if token == ")" {
break
} else if "+-*/".contains(token) {
while !operators.isEmpty && precedence(operators.last!) >= precedence(token) {
try processOperation(&values, &operators)
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while !operators.isEmpty {
try processOperation(&values, &operators)
}
return values.last ?? 0
}
private func precedence(_ op: String) -> Int {
switch op {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func processOperation(_ values: inout [Double], _ operators: inout [String]) throws {
guard let op = operators.popLast(),
values.count >= 2,
let right = values.popLast(),
let left = values.popLast() else {
throw CalculateError.invalidInput
}
let result: Double
switch op {
case "+":
result = left + right
case "-":
result = left - right
case "*":
result = left * right
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
result = left / right
default:
throw CalculateError.invalidInput
}
values.append(result)
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var tokens = tokenize(string)
if tokens.isEmpty {
throw CalculateError.invalidInput
}
return try parseExpression(&tokens)
}
private func tokenize(_ input: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in input {
if character.isWhitespace {
continue
}
if character.isNumber || character == "." {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func parseExpression(_ tokens: inout [String]) throws -> Double {
var values = [Double]()
var operators = [String]()
while !tokens.isEmpty {
let token = tokens.removeFirst()
if let value = Double(token) {
values.append(value)
} else if token == "(" {
values.append(try parseExpression(&tokens))
} else if token == ")" {
break
} else if "+-*/".contains(token) {
while !operators.isEmpty && precedence(operators.last!) >= precedence(token) {
try processOperation(&values, &operators)
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while !operators.isEmpty {
try processOperation(&values, &operators)
}
return values.last ?? 0
}
private func precedence(_ op: String) -> Int {
switch op {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func processOperation(_ values: inout [Double], _ operators: inout [String]) throws {
guard let op = operators.popLast(),
values.count >= 2,
let right = values.popLast(),
let left = values.popLast() else {
throw CalculateError.invalidInput
}
let result: Double
switch op {
case "+":
result = left + right
case "-":
result = left - right
case "*":
result = left * right
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
result = left / right
default:
throw CalculateError.invalidInput
}
values.append(result)
}
```enum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack = [String]()
var output = [String]()
for token in tokens {
switch token {
case "+", "-":
while let top = stack.last, "*/+-".contains(top) {
output.append(stack.removeLast())
}
stack.append(token)
case "*", "/":
while let top = stack.last, "*/".contains(top) {
output.append(stack.removeLast())
}
stack.append(token)
case "(":
stack.append(token)
case ")":
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
}
default:
output.append(token)
}
}
while !stack.isEmpty {
output.append(stack.removeLast())
}
return try evaluateRPN(output)
}
private func tokenize(_ string: String) -> [String] {
var tokens = [String]()
var currentNumber = ""
for character in string {
if character.isNumber || (character == "." && !currentNumber.isEmpty) {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if character.isWhitespace {
continue
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func evaluateRPN(_ tokens: [String]) throws -> Double {
var stack = [Double]()
for token in tokens {
if let num = Double(token) {
stack.append(num)
} else {
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
guard second != 0 else { throw CalculateError.invalidInput }
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
}
}
guard stack.count == 1 else { throw CalculateError.invalidInput }
return stack.first!
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack = [String]()
var output = [String]()
for token in tokens {
switch token {
case "+", "-":
while let top = stack.last, "*/+-".contains(top) {
output.append(stack.removeLast())
}
stack.append(token)
case "*", "/":
while let top = stack.last, "*/".contains(top) {
output.append(stack.removeLast())
}
stack.append(token)
case "(":
stack.append(token)
case ")":
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
}
default:
output.append(token)
}
}
while !stack.isEmpty {
output.append(stack.removeLast())
}
return try evaluateRPN(output)
}
private func tokenize(_ string: String) -> [String] {
var tokens = [String]()
var currentNumber = ""
for character in string {
if character.isNumber || (character == "." && !currentNumber.isEmpty) {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if character.isWhitespace {
continue
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func evaluateRPN(_ tokens: [String]) throws -> Double {
var stack = [Double]()
for token in tokens {
if let num = Double(token) {
stack.append(num)
} else {
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
guard second != 0 else { throw CalculateError.invalidInput }
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
}
}
guard stack.count == 1 else { throw CalculateError.invalidInput }
return stack.first!
}
```enum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ input: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in input {
if character.isNumber || character == "." {
currentNumber.append(character)
} else if "+-*/()".contains(character) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
} else if !character.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
let topPrecedence = precedence[top],
let tokenPrecedence = precedence[token],
topPrecedence > tokenPrecedence || (topPrecedence == tokenPrecedence && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.last {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(stack.removeLast())
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ input: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in input {
if character.isNumber || character == "." {
currentNumber.append(character)
} else if "+-*/()".contains(character) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
} else if !character.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
let topPrecedence = precedence[top],
let tokenPrecedence = precedence[token],
topPrecedence > tokenPrecedence || (topPrecedence == tokenPrecedence && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.last {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(stack.removeLast())
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput
}
```return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput // expected expression after '? ... :' in ternary expressionenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in string {
if character.isNumber || (character == "." && !currentNumber.isEmpty) {
currentNumber.append(character)
} else if "+-*/()".contains(character) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
} else if !character.isWhitespace {
continue
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while let top = stack.popLast() {
if top == "(" {
throw CalculateError.invalidInput
}
postfix.append(top)
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
continue
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in string {
if character.isNumber || (character == "." && !currentNumber.isEmpty) {
currentNumber.append(character)
} else if "+-*/()".contains(character) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
} else if !character.isWhitespace {
continue
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while let top = stack.popLast() {
if top == "(" {
throw CalculateError.invalidInput
}
postfix.append(top)
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
continue
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
```enum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || (char == "." && !currentNumber.contains(".")) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var opsStack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let associativity: [String: String] = ["+": "L", "-": "L", "*": "L", "/": "L"]
for token in tokens {
if Double(token) != nil {
postfix.append(token)
} else if "+-*/".contains(token) {
while let top = opsStack.last, "+-*/".contains(top),
(associativity[token]! == "L" && precedence[token]! <= precedence[top]!) ||
(associativity[token]! == "R" && precedence[token]! < precedence[top]!) {
postfix.append(opsStack.removeLast())
}
opsStack.append(token)
} else if token == "(" {
opsStack.append(token)
} else if token == ")" {
while let top = opsStack.last, top != "(" {
postfix.append(opsStack.removeLast())
}
if opsStack.last == "(" {
opsStack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let top = opsStack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
postfix.append(top)
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token), let rhs = stack.popLast(), let lhs = stack.popLast() {
switch token {
case "+":
stack.append(lhs + rhs)
case "-":
stack.append(lhs - rhs)
case "*":
stack.append(lhs * rhs)
case "/":
stack.append(lhs / rhs)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || (char == "." && !currentNumber.contains(".")) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var opsStack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let associativity: [String: String] = ["+": "L", "-": "L", "*": "L", "/": "L"]
for token in tokens {
if Double(token) != nil {
postfix.append(token)
} else if "+-*/".contains(token) {
while let top = opsStack.last, "+-*/".contains(top),
(associativity[token]! == "L" && precedence[token]! <= precedence[top]!) ||
(associativity[token]! == "R" && precedence[token]! < precedence[top]!) {
postfix.append(opsStack.removeLast())
}
opsStack.append(token)
} else if token == "(" {
opsStack.append(token)
} else if token == ")" {
while let top = opsStack.last, top != "(" {
postfix.append(opsStack.removeLast())
}
if opsStack.last == "(" {
opsStack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let top = opsStack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
postfix.append(top)
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token), let rhs = stack.popLast(), let lhs = stack.popLast() {
switch token {
case "+":
stack.append(lhs + rhs)
case "-":
stack.append(lhs - rhs)
case "*":
stack.append(lhs * rhs)
case "/":
stack.append(lhs / rhs)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
``` // XCTAssertThrowsError failed: Expected error but no error was thrownenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ expression: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in expression {
if char.isNumber || (char == "." && !currentNumber.isEmpty) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
continue
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = Set()
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
let topPrecedence = precedence[top],
let tokenPrecedence = precedence[token],
topPrecedence > tokenPrecedence || (topPrecedence == tokenPrecedence && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.last {
output.append(stack.removeLast())
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ expression: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in expression {
if char.isNumber || (char == "." && !currentNumber.isEmpty) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
continue
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = Set()
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
let topPrecedence = precedence[top],
let tokenPrecedence = precedence[token],
topPrecedence > tokenPrecedence || (topPrecedence == tokenPrecedence && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.last {
output.append(stack.removeLast())
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
```while let top = stack.last { // value 'top' was defined but never used; consider replacing with boolean testenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in string {
if character.isWhitespace {
continue
}
if character.isNumber || character == "." {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(operators.removeLast())
}
if operators.last == "(" {
operators.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if let _ = precedence[token] {
while let op = operators.last, let opPrecedence = precedence[op], let tokenPrecedence = precedence[token],
opPrecedence > tokenPrecedence || (opPrecedence == tokenPrecedence && !rightAssociative.contains(token)) {
output.append(operators.removeLast())
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.popLast() {
if op == "(" || op == ")" {
throw CalculateError.invalidInput
}
output.append(op)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
guard right != 0 else {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
}
}
return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in string {
if character.isWhitespace {
continue
}
if character.isNumber || character == "." {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(operators.removeLast())
}
if operators.last == "(" {
operators.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if let _ = precedence[token] {
while let op = operators.last, let opPrecedence = precedence[op], let tokenPrecedence = precedence[token],
opPrecedence > tokenPrecedence || (opPrecedence == tokenPrecedence && !rightAssociative.contains(token)) {
output.append(operators.removeLast())
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.popLast() {
if op == "(" || op == ")" {
throw CalculateError.invalidInput
}
output.append(op)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
guard right != 0 else {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
}
}
return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput
}
```return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput // expected expression after '? ... :' in ternary expressionenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ input: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in input {
if character.isNumber || character == "." {
currentNumber.append(character)
} else if "+-*/()".contains(character) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
} else if !character.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
output.append(token)
} else if "+-*/".contains(token) {
while let top = stack.last, "+-*/".contains(top),
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token), stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ input: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in input {
if character.isNumber || character == "." {
currentNumber.append(character)
} else if "+-*/()".contains(character) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
} else if !character.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
output.append(token)
} else if "+-*/".contains(token) {
while let top = stack.last, "+-*/".contains(top),
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token), stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput
}
```return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput // expected expression after '? ... :' in ternary expressionenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let processedString = string.replacingOccurrences(of: " ", with: "")
guard isValidExpression(processedString) else {
throw CalculateError.invalidInput
}
let tokens = tokenize(expression: processedString)
let postfixTokens = try infixToPostfix(tokens: tokens)
return try evaluatePostfix(tokens: postfixTokens)
}
func isValidExpression(_ expression: String) -> Bool {
let validCharacters = CharacterSet(charactersIn: "0123456789+-*/()")
return expression.rangeOfCharacter(from: validCharacters.inverted) == nil
}
func tokenize(expression: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in expression {
if character.isNumber {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func infixToPostfix(tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let associativity: [String: String] = ["+": "L", "-": "L", "*": "L", "/": "L"]
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(operators.removeLast())
}
if operators.last == "(" {
operators.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if let _ = precedence[token] {
while let op = operators.last, let opPrecedence = precedence[op], let tokenPrecedence = precedence[token],
(associativity[token] == "L" && tokenPrecedence <= opPrecedence) || (associativity[token] == "R" && tokenPrecedence < opPrecedence) {
output.append(operators.removeLast())
}
operators.append(token)
}
}
while let op = operators.popLast() {
if op == "(" || op == ")" {
throw CalculateError.invalidInput
}
output.append(op)
}
return output
}
func evaluatePostfix(tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
}
}
return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let processedString = string.replacingOccurrences(of: " ", with: "")
guard isValidExpression(processedString) else {
throw CalculateError.invalidInput
}
let tokens = tokenize(expression: processedString)
let postfixTokens = try infixToPostfix(tokens: tokens)
return try evaluatePostfix(tokens: postfixTokens)
}
func isValidExpression(_ expression: String) -> Bool {
let validCharacters = CharacterSet(charactersIn: "0123456789+-*/()")
return expression.rangeOfCharacter(from: validCharacters.inverted) == nil
}
func tokenize(expression: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in expression {
if character.isNumber {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func infixToPostfix(tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let associativity: [String: String] = ["+": "L", "-": "L", "*": "L", "/": "L"]
for token in tokens {
if let _ = Double(token) {
output.append(token)
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(operators.removeLast())
}
if operators.last == "(" {
operators.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if let _ = precedence[token] {
while let op = operators.last, let opPrecedence = precedence[op], let tokenPrecedence = precedence[token],
(associativity[token] == "L" && tokenPrecedence <= opPrecedence) || (associativity[token] == "R" && tokenPrecedence < opPrecedence) {
output.append(operators.removeLast())
}
operators.append(token)
}
}
while let op = operators.popLast() {
if op == "(" || op == ")" {
throw CalculateError.invalidInput
}
output.append(op)
}
return output
}
func evaluatePostfix(tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
}
}
return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput
}
```return stack.count == 1 ? stack[0] : throw CalculateError.invalidInput // expected expression after '? ... :' in ternary expressionenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var numberBuffer: String = ""
for char in string {
if char.isNumber || char == "." {
numberBuffer.append(char)
} else if "+-*/()".contains(char) {
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
numberBuffer = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
output.append(token)
} else if "+-*/".contains(token) {
while let top = stack.last, "+-*/".contains(top),
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token), stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var numberBuffer: String = ""
for char in string {
if char.isNumber || char == "." {
numberBuffer.append(char)
} else if "+-*/()".contains(char) {
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
numberBuffer = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
output.append(token)
} else if "+-*/".contains(token) {
while let top = stack.last, "+-*/".contains(top),
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token), stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
``` // XCTAssertThrowsError failed: Expected error but no error was thrownenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || (char == "." && !currentNumber.isEmpty) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
postfix.append(top)
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token) && stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
break
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || (char == "." && !currentNumber.isEmpty) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
postfix.append(top)
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token) && stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
break
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
``` // XCTAssertThrowsError failed: Expected error but no error was thrownenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var numberBuffer: String = ""
for char in string {
if char.isNumber || char == "." {
numberBuffer.append(char)
} else if "+-*/()".contains(char) {
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
numberBuffer = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
output.append(token)
} else if "+-*/".contains(token) {
while let top = stack.last, "+-*/".contains(top),
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token), stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var numberBuffer: String = ""
for char in string {
if char.isNumber || char == "." {
numberBuffer.append(char)
} else if "+-*/()".contains(char) {
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
numberBuffer = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !numberBuffer.isEmpty {
tokens.append(numberBuffer)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var stack: [String] = []
var output: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
output.append(token)
} else if "+-*/".contains(token) {
while let top = stack.last, "+-*/".contains(top),
precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token)) {
output.append(stack.removeLast())
}
stack.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
output.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.popLast() {
if top == "(" || top == ")" {
throw CalculateError.invalidInput
}
output.append(top)
}
return output
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if "+-*/".contains(token), stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
``` // XCTAssertThrowsError failed: Expected error but no error was thrownenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || (char == "." && !currentNumber.isEmpty) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
(rightAssociative.contains(token) ? precedence[top]! > precedence[token]! : precedence[top]! >= precedence[token]!) {
postfix.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.last {
if top == "(" {
throw CalculateError.invalidInput
}
postfix.append(stack.removeLast())
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token), stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || (char == "." && !currentNumber.isEmpty) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
(rightAssociative.contains(token) ? precedence[top]! > precedence[token]! : precedence[top]! >= precedence[token]!) {
postfix.append(stack.removeLast())
}
stack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = stack.last {
if top == "(" {
throw CalculateError.invalidInput
}
postfix.append(stack.removeLast())
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token), stack.count >= 2 {
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
``` // XCTAssertThrowsError failed: Expected error but no error was thrownenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let processedString = string.replacingOccurrences(of: " ", with: "")
guard isValidExpression(processedString) else {
throw CalculateError.invalidInput
}
let tokens = tokenize(expression: processedString)
let postfix = try infixToPostfix(tokens: tokens)
return try evaluatePostfix(postfix)
}
func isValidExpression(_ expression: String) -> Bool {
let validCharacters = CharacterSet(charactersIn: "0123456789+-*/()")
return expression.rangeOfCharacter(from: validCharacters.inverted) == nil
}
func tokenize(expression: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in expression {
if character.isNumber {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func infixToPostfix(tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let associativity: [String: String] = ["+": "L", "-": "L", "*": "L", "/": "L"]
for token in tokens {
if let _ = Double(token) {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if let _ = precedence[token] {
while let top = stack.last, let topPrecedence = precedence[top],
let tokenPrecedence = precedence[token],
(associativity[token] == "L" && tokenPrecedence <= topPrecedence) ||
(associativity[token] == "R" && tokenPrecedence < topPrecedence) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while let top = stack.last {
postfix.append(stack.removeLast())
}
return postfix
}
func evaluatePostfix(_ postfix: [String]) throws -> Double {
var stack: [Double] = []
for token in postfix {
if let number = Double(token) {
stack.append(number)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let processedString = string.replacingOccurrences(of: " ", with: "")
guard isValidExpression(processedString) else {
throw CalculateError.invalidInput
}
let tokens = tokenize(expression: processedString)
let postfix = try infixToPostfix(tokens: tokens)
return try evaluatePostfix(postfix)
}
func isValidExpression(_ expression: String) -> Bool {
let validCharacters = CharacterSet(charactersIn: "0123456789+-*/()")
return expression.rangeOfCharacter(from: validCharacters.inverted) == nil
}
func tokenize(expression: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in expression {
if character.isNumber {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func infixToPostfix(tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let associativity: [String: String] = ["+": "L", "-": "L", "*": "L", "/": "L"]
for token in tokens {
if let _ = Double(token) {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if let _ = precedence[token] {
while let top = stack.last, let topPrecedence = precedence[top],
let tokenPrecedence = precedence[token],
(associativity[token] == "L" && tokenPrecedence <= topPrecedence) ||
(associativity[token] == "R" && tokenPrecedence < topPrecedence) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while let top = stack.last {
postfix.append(stack.removeLast())
}
return postfix
}
func evaluatePostfix(_ postfix: [String]) throws -> Double {
var stack: [Double] = []
for token in postfix {
if let number = Double(token) {
stack.append(number)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
}
}
return stack.last ?? 0
}
```while let top = stack.last { // value 'top' was defined but never used; consider replacing with boolean testenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || (char == "." && !currentNumber.isEmpty) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
(precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token))) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while let top = stack.last {
if top == "(" {
throw CalculateError.invalidInput
}
postfix.append(stack.removeLast())
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || (char == "." && !currentNumber.isEmpty) {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
} else if !char.isWhitespace {
return []
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
let rightAssociative: Set<String> = []
for token in tokens {
if Double(token) != nil {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if "+-*/".contains(token) {
while let top = stack.last, top != "(",
(precedence[top]! > precedence[token]! ||
(precedence[top]! == precedence[token]! && !rightAssociative.contains(token))) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while let top = stack.last {
if top == "(" {
throw CalculateError.invalidInput
}
postfix.append(stack.removeLast())
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if "+-*/".contains(token) && stack.count >= 2 {
let second = stack.removeLast()
let first = stack.removeLast()
switch token {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
if second == 0 {
throw CalculateError.invalidInput
}
stack.append(first / second)
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
return stack.last ?? 0
}
``` // XCTAssertThrowsError failed: Expected error but no error was thrownenum CalculateError: Error {
case invalidInput
}
import Foundation
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in string {
if character.isWhitespace {
continue
}
if character.isNumber || character == "." {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
for token in tokens {
if let _ = Double(token) {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast() // remove '('
} else {
while let top = stack.last, precedence(top) >= precedence(token) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while !stack.isEmpty {
let op = stack.removeLast()
if op == "(" || op == ")" {
throw CalculateError.invalidInput
}
postfix.append(op)
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
}
}
return stack.last ?? 0
}
private func precedence(_ op: String) -> Int {
switch op {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}```swift
import Foundation
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = try infixToPostfix(tokens)
return try evaluatePostfix(postfix)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for character in string {
if character.isWhitespace {
continue
}
if character.isNumber || character == "." {
currentNumber.append(character)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(character))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func infixToPostfix(_ tokens: [String]) throws -> [String] {
var postfix: [String] = []
var stack: [String] = []
for token in tokens {
if let _ = Double(token) {
postfix.append(token)
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast() // remove '('
} else {
while let top = stack.last, precedence(top) >= precedence(token) {
postfix.append(stack.removeLast())
}
stack.append(token)
}
}
while !stack.isEmpty {
let op = stack.removeLast()
if op == "(" || op == ")" {
throw CalculateError.invalidInput
}
postfix.append(op)
}
return postfix
}
private func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let right = stack.removeLast()
let left = stack.removeLast()
switch token {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
if right == 0 {
throw CalculateError.invalidInput
}
stack.append(left / right)
default:
throw CalculateError.invalidInput
}
}
}
return stack.last ?? 0
}
private func precedence(_ op: String) -> Int {
switch op {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to start process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to start process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
if let stdout = String(data: stdoutData, encoding: .utf8),
let stderr = String(data: stderrData, encoding: .utf8) {
return (stdout, stderr)
} else {
return ("", "Failed to decode output")
}
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
if let stdout = String(data: stdoutData, encoding: .utf8),
let stderr = String(data: stderrData, encoding: .utf8) {
return (stdout, stderr)
} else {
return ("", "Failed to decode output")
}
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
if let stdout = String(data: stdoutData, encoding: .utf8),
let stderr = String(data: stderrData, encoding: .utf8) {
return (stdout, stderr)
} else {
return ("", "Failed to decode output")
}
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
if let stdout = String(data: stdoutData, encoding: .utf8),
let stderr = String(data: stderrData, encoding: .utf8) {
return (stdout, stderr)
} else {
return ("", "Failed to decode output")
}
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
if let stdoutString = String(data: stdoutData, encoding: .utf8),
let stderrString = String(data: stderrData, encoding: .utf8) {
return (stdoutString, stderrString)
} else {
return ("", "Failed to decode output")
}
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
if let stdoutString = String(data: stdoutData, encoding: .utf8),
let stderrString = String(data: stderrData, encoding: .utf8) {
return (stdoutString, stderrString)
} else {
return ("", "Failed to decode output")
}
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to start process: \(error.localizedDescription)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to start process: \(error.localizedDescription)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
if let stdout = String(data: stdoutData, encoding: .utf8),
let stderr = String(data: stderrData, encoding: .utf8) {
return (stdout, stderr)
} else {
return ("", "Failed to decode output")
}
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
if let stdout = String(data: stdoutData, encoding: .utf8),
let stderr = String(data: stderrData, encoding: .utf8) {
return (stdout, stderr)
} else {
return ("", "Failed to decode output")
}
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to start process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to start process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to start process: \(error.localizedDescription)")
}
let outputData = stdout.fileHandleForReading.readDataToEndOfFile()
let errorData = stderr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to start process: \(error.localizedDescription)")
}
let outputData = stdout.fileHandleForReading.readDataToEndOfFile()
let errorData = stderr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let outputData = stdout.fileHandleForReading.readDataToEndOfFile()
let errorData = stderr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let outputData = stdout.fileHandleForReading.readDataToEndOfFile()
let errorData = stderr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdout.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderr.fileHandleForReading.readDataToEndOfFile()
let stdoutString = String(data: stdoutData, encoding: .utf8) ?? ""
let stderrString = String(data: stderrData, encoding: .utf8) ?? ""
return (stdoutString, stderrString)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let outputData = stdout.fileHandleForReading.readDataToEndOfFile()
let errorData = stderr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let outputData = stdout.fileHandleForReading.readDataToEndOfFile()
let errorData = stderr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error)")
}
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let outputData = stdout.fileHandleForReading.readDataToEndOfFile()
let errorData = stderr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
let stdout = Pipe()
let stderr = Pipe()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
process.standardOutput = stdout
process.standardError = stderr
do {
try process.run()
process.waitUntilExit()
} catch {
return ("", "Failed to run process: \(error.localizedDescription)")
}
let outputData = stdout.fileHandleForReading.readDataToEndOfFile()
let errorData = stderr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var errors: [Error] = []
for _ in 1...attempts {
do {
return try task()
} catch {
errors.append(error)
}
}
throw RetryError.allAttemptsFailed(errors: errors)
}
enum RetryError: Error {
case allAttemptsFailed(errors: [Error])
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var errors: [Error] = []
for _ in 1...attempts {
do {
return try task()
} catch {
errors.append(error)
}
}
throw RetryError.allAttemptsFailed(errors: errors)
}
enum RetryError: Error {
case allAttemptsFailed(errors: [Error])
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
lastError = error
attemptsLeft -= 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
lastError = error
attemptsLeft -= 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
lastError = error
attemptsLeft -= 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
lastError = error
attemptsLeft -= 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: nil)
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch let error {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch let error {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
lastError = error
attemptsLeft -= 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: 999, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
lastError = error
attemptsLeft -= 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: 999, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var numberOfAttempts = attempts
var lastError: Error?
while numberOfAttempts > 0 {
do {
return try task()
} catch {
numberOfAttempts -= 1
lastError = error
if numberOfAttempts > 0 {
continue
} else {
throw lastError!
}
}
}
throw lastError!
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var numberOfAttempts = attempts
var lastError: Error?
while numberOfAttempts > 0 {
do {
return try task()
} catch {
numberOfAttempts -= 1
lastError = error
if numberOfAttempts > 0 {
continue
} else {
throw lastError!
}
}
}
throw lastError!
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error"])
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var numberOfAttempts = attempts
var lastError: Error?
while numberOfAttempts > 0 {
do {
return try task()
} catch {
numberOfAttempts -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.retry.error", code: 999, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var numberOfAttempts = attempts
var lastError: Error?
while numberOfAttempts > 0 {
do {
return try task()
} catch {
numberOfAttempts -= 1
lastError = error
}
}
throw lastError ?? NSError(domain: "com.retry.error", code: 999, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.retry.task", code: 999, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.retry.task", code: 999, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
var lastError: Error?
while currentAttempt < attempts {
do {
return try task()
} catch {
lastError = error
currentAttempt += 1
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}
```import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
if attemptsLeft > 0 {
sleep(1) // Delay for a second before retrying
}
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}```swift
import Foundation
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attemptsLeft = attempts
var lastError: Error?
while attemptsLeft > 0 {
do {
return try task()
} catch {
attemptsLeft -= 1
lastError = error
if attemptsLeft > 0 {
sleep(1) // Delay for a second before retrying
}
}
}
throw lastError ?? NSError(domain: "com.example.retry", code: -1, userInfo: [NSLocalizedDescriptionKey: "Unknown error occurred"])
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var services: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
services[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = services[key] as? () -> T {
return factory()
}
return nil
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextStates = transitions[currentState], let nextState = nextStates[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextStates = transitions[currentState], let nextState = nextStates[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol where State: Hashable, Event: Hashable {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State, Event>: StateMachineProtocol where State: Hashable, Event: Hashable {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let possibleStates = transitions[currentState],
let newState = possibleStates[event] {
currentState = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let possibleStates = transitions[currentState],
let newState = possibleStates[event] {
currentState = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextState = transitions[currentState]?[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]![event] = to
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}```swift
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var currentState: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] {
currentState = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [Event: State]()
}
transitions[from]?[event] = to
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
let maxDepth = contents.map { $0.treeDepth }.max() ?? 0
return 1 + maxDepth
}
}
}
```protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var storage: [Element] = []
required init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var storage: [Element] = []
required init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() { }
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() { }
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var cache: [Key: CacheItem]
private var recentKeys: [Key]
required init(capacity: Int) {
self.capacity = capacity
cache = [Key: CacheItem]()
recentKeys = []
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
}
private func evictIfNeeded() {
if recentKeys.count > capacity {
let keyToRemove = recentKeys.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = cache[key] else { return nil }
refreshKey(key)
return item.value
}
set {
if let value = newValue {
if cache[key] == nil {
evictIfNeeded()
}
cache[key] = CacheItem(key: key, value: value)
refreshKey(key)
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var cache: [Key: CacheItem]
private var recentKeys: [Key]
required init(capacity: Int) {
self.capacity = capacity
cache = [Key: CacheItem]()
recentKeys = []
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
}
private func evictIfNeeded() {
if recentKeys.count > capacity {
let keyToRemove = recentKeys.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = cache[key] else { return nil }
refreshKey(key)
return item.value
}
set {
if let value = newValue {
if cache[key] == nil {
evictIfNeeded()
}
cache[key] = CacheItem(key: key, value: value)
refreshKey(key)
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}
``` // XCTAssertNil failed: expression is not nilprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private var capacity: Int
private var items: [Key: CacheItem]
private var usageOrder: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
usageOrder = []
}
private func reorderUsage(for key: Key) {
if let index = usageOrder.firstIndex(of: key) {
usageOrder.remove(at: index)
}
usageOrder.append(key)
}
private func evictIfNeeded() {
if usageOrder.count > capacity {
let keyToRemove = usageOrder.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorderUsage(for: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
reorderUsage(for: key)
evictIfNeeded()
} else {
items.removeValue(forKey: key)
if let index = usageOrder.firstIndex(of: key) {
usageOrder.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private var capacity: Int
private var items: [Key: CacheItem]
private var usageOrder: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
usageOrder = []
}
private func reorderUsage(for key: Key) {
if let index = usageOrder.firstIndex(of: key) {
usageOrder.remove(at: index)
}
usageOrder.append(key)
}
private func evictIfNeeded() {
if usageOrder.count > capacity {
let keyToRemove = usageOrder.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorderUsage(for: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
reorderUsage(for: key)
evictIfNeeded()
} else {
items.removeValue(forKey: key)
if let index = usageOrder.firstIndex(of: key) {
usageOrder.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(_ key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evict() {
if order.count > capacity, let keyToRemove = order.first {
items.removeValue(forKey: keyToRemove)
order.removeFirst()
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key)
return item.value
}
set {
if let value = newValue {
if items[key] == nil {
evict()
}
items[key] = CacheItem(key: key, value: value)
reorder(key)
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(_ key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evict() {
if order.count > capacity, let keyToRemove = order.first {
items.removeValue(forKey: keyToRemove)
order.removeFirst()
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key)
return item.value
}
set {
if let value = newValue {
if items[key] == nil {
evict()
}
items[key] = CacheItem(key: key, value: value)
reorder(key)
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}
``` // XCTAssertNil failed: expression is not nilprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evictIfNeeded() {
guard order.count > capacity else { return }
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
reorder(key: key)
evictIfNeeded()
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evictIfNeeded() {
guard order.count > capacity else { return }
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
reorder(key: key)
evictIfNeeded()
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evict() {
if order.count > capacity {
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key: key)
return item.value
}
set {
if let value = newValue {
if items[key] == nil {
evict()
}
items[key] = CacheItem(key: key, value: value)
reorder(key: key)
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evict() {
if order.count > capacity {
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key: key)
return item.value
}
set {
if let value = newValue {
if items[key] == nil {
evict()
}
items[key] = CacheItem(key: key, value: value)
reorder(key: key)
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}
``` // XCTAssertNil failed: expression is not nilprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evict() {
if order.count > capacity {
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
reorder(key: key)
evict()
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evict() {
if order.count > capacity {
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
reorder(key: key)
evict()
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evict() {
if order.count > capacity {
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
reorder(key: key)
evict()
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func reorder(key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evict() {
if order.count > capacity {
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
reorder(key: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
reorder(key: key)
evict()
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
var value: Element
}
private let capacity: Int
private var cache: [Key: LinkedList<CachePayload>.Node] = [:]
private var recentItems = LinkedList<CachePayload>()
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
subscript(key: Key) -> Element? {
get {
guard let node = cache[key] else { return nil }
recentItems.moveToHead(node)
return node.value.value
}
set {
if let value = newValue {
if let node = cache[key] {
node.value.value = value
recentItems.moveToHead(node)
} else {
let payload = CachePayload(key: key, value: value)
if recentItems.count >= capacity, let nodeToRemove = recentItems.removeLast() {
cache.removeValue(forKey: nodeToRemove.value.key)
}
let node = recentItems.insertAtHead(payload)
cache[key] = node
}
} else {
if let node = cache.removeValue(forKey: key) {
recentItems.remove(node)
}
}
}
}
}
private class LinkedList<T> {
class Node {
var value: T
var next: Node?
var previous: Node?
init(value: T) {
self.value = value
}
}
private var head: Node?
private var tail: Node?
var count: Int = 0
func insertAtHead(_ value: T) -> Node {
let newNode = Node(value: value)
defer {
head = newNode
count += 1
if tail == nil {
tail = head
}
}
guard let headNode = head else {
return newNode
}
newNode.next = headNode
headNode.previous = newNode
return newNode
}
func moveToHead(_ node: Node) {
guard node !== head else { return }
remove(node)
insertAtHead(node.value)
}
func removeLast() -> Node? {
guard let tailNode = tail else { return nil }
remove(tailNode)
return tailNode
}
func remove(_ node: Node) {
let prev = node.previous
let next = node.next
if node === head {
head = next
}
if node === tail {
tail = prev
}
prev?.next = next
next?.previous = prev
node.previous = nil
node.next = nil
count -= 1
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
var value: Element
}
private let capacity: Int
private var cache: [Key: LinkedList<CachePayload>.Node] = [:]
private var recentItems = LinkedList<CachePayload>()
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
subscript(key: Key) -> Element? {
get {
guard let node = cache[key] else { return nil }
recentItems.moveToHead(node)
return node.value.value
}
set {
if let value = newValue {
if let node = cache[key] {
node.value.value = value
recentItems.moveToHead(node)
} else {
let payload = CachePayload(key: key, value: value)
if recentItems.count >= capacity, let nodeToRemove = recentItems.removeLast() {
cache.removeValue(forKey: nodeToRemove.value.key)
}
let node = recentItems.insertAtHead(payload)
cache[key] = node
}
} else {
if let node = cache.removeValue(forKey: key) {
recentItems.remove(node)
}
}
}
}
}
private class LinkedList<T> {
class Node {
var value: T
var next: Node?
var previous: Node?
init(value: T) {
self.value = value
}
}
private var head: Node?
private var tail: Node?
var count: Int = 0
func insertAtHead(_ value: T) -> Node {
let newNode = Node(value: value)
defer {
head = newNode
count += 1
if tail == nil {
tail = head
}
}
guard let headNode = head else {
return newNode
}
newNode.next = headNode
headNode.previous = newNode
return newNode
}
func moveToHead(_ node: Node) {
guard node !== head else { return }
remove(node)
insertAtHead(node.value)
}
func removeLast() -> Node? {
guard let tailNode = tail else { return nil }
remove(tailNode)
return tailNode
}
func remove(_ node: Node) {
let prev = node.previous
let next = node.next
if node === head {
head = next
}
if node === tail {
tail = prev
}
prev?.next = next
next?.previous = prev
node.previous = nil
node.next = nil
count -= 1
}
}
```insertAtHead(node.value) // result of call to 'insertAtHead' is unusedprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func refreshItemOrder(forKey key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evictItemIfNecessary() {
if order.count > capacity {
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else {
return nil
}
refreshItemOrder(forKey: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
refreshItemOrder(forKey: key)
evictItemIfNecessary()
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
var value: Element
}
private let capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
items = [Key: CacheItem]()
order = [Key]()
}
private func refreshItemOrder(forKey key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
}
private func evictItemIfNecessary() {
if order.count > capacity {
let keyToRemove = order.removeFirst()
items.removeValue(forKey: keyToRemove)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else {
return nil
}
refreshItemOrder(forKey: key)
return item.value
}
set {
if let value = newValue {
items[key] = CacheItem(key: key, value: value)
refreshItemOrder(forKey: key)
evictItemIfNecessary()
} else {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload]
private var recentKeys: [Key]
required init(capacity: Int) {
self.capacity = max(capacity, 1) // Ensure capacity is at least 1
cache = [Key: CachePayload]()
recentKeys = []
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
}
private func evictIfNeeded() {
guard recentKeys.count > capacity else { return }
let keyToEvict = recentKeys.removeFirst()
cache.removeValue(forKey: keyToEvict)
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
cache[key] = CachePayload(key: key, value: value)
refreshKey(key)
evictIfNeeded()
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload]
private var recentKeys: [Key]
required init(capacity: Int) {
self.capacity = max(capacity, 1) // Ensure capacity is at least 1
cache = [Key: CachePayload]()
recentKeys = []
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
}
private func evictIfNeeded() {
guard recentKeys.count > capacity else { return }
let keyToEvict = recentKeys.removeFirst()
cache.removeValue(forKey: keyToEvict)
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
cache[key] = CachePayload(key: key, value: value)
refreshKey(key)
evictIfNeeded()
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
let value: Element
}
private let capacity: Int
private var items: [Key: LinkedList<CacheItem>.Node] = [:]
private var orderList = LinkedList<CacheItem>()
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
subscript(key: Key) -> Element? {
get {
guard let node = items[key] else { return nil }
orderList.moveToHead(node)
return node.value.value
}
set {
if let value = newValue {
if let node = items[key] {
node.value.value = value
orderList.moveToHead(node)
} else {
let newItem = CacheItem(key: key, value: value)
if items.count == capacity, let leastRecent = orderList.removeLast() {
items.removeValue(forKey: leastRecent.key)
}
let node = orderList.insertAtHead(newItem)
items[key] = node
}
} else {
if let node = items.removeValue(forKey: key) {
orderList.remove(node)
}
}
}
}
}
class LinkedList<T> {
class Node {
var value: T
var next: Node?
var prev: Node?
init(value: T) {
self.value = value
}
}
private var head: Node?
private var tail: Node?
func insertAtHead(_ value: T) -> Node {
let newNode = Node(value: value)
if let headNode = head {
newNode.next = headNode
headNode.prev = newNode
} else {
tail = newNode
}
head = newNode
return newNode
}
func moveToHead(_ node: Node) {
guard node !== head else { return }
remove(node)
node.next = head
node.prev = nil
head?.prev = node
head = node
}
func remove(_ node: Node) {
if node === head {
head = node.next
}
if node === tail {
tail = node.prev
}
node.prev?.next = node.next
node.next?.prev = node.prev
node.next = nil
node.prev = nil
}
func removeLast() -> T? {
guard let tailNode = tail else { return nil }
let value = tailNode.value
remove(tailNode)
return value
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
let value: Element
}
private let capacity: Int
private var items: [Key: LinkedList<CacheItem>.Node] = [:]
private var orderList = LinkedList<CacheItem>()
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
subscript(key: Key) -> Element? {
get {
guard let node = items[key] else { return nil }
orderList.moveToHead(node)
return node.value.value
}
set {
if let value = newValue {
if let node = items[key] {
node.value.value = value
orderList.moveToHead(node)
} else {
let newItem = CacheItem(key: key, value: value)
if items.count == capacity, let leastRecent = orderList.removeLast() {
items.removeValue(forKey: leastRecent.key)
}
let node = orderList.insertAtHead(newItem)
items[key] = node
}
} else {
if let node = items.removeValue(forKey: key) {
orderList.remove(node)
}
}
}
}
}
class LinkedList<T> {
class Node {
var value: T
var next: Node?
var prev: Node?
init(value: T) {
self.value = value
}
}
private var head: Node?
private var tail: Node?
func insertAtHead(_ value: T) -> Node {
let newNode = Node(value: value)
if let headNode = head {
newNode.next = headNode
headNode.prev = newNode
} else {
tail = newNode
}
head = newNode
return newNode
}
func moveToHead(_ node: Node) {
guard node !== head else { return }
remove(node)
node.next = head
node.prev = nil
head?.prev = node
head = node
}
func remove(_ node: Node) {
if node === head {
head = node.next
}
if node === tail {
tail = node.prev
}
node.prev?.next = node.next
node.next?.prev = node.prev
node.next = nil
node.prev = nil
}
func removeLast() -> T? {
guard let tailNode = tail else { return nil }
let value = tailNode.value
remove(tailNode)
return value
}
}
```node.value.value = value // cannot assign to property: 'value' is a 'let' constantprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CacheItem] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1) // Ensure capacity is at least 1
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
}
private func evictItem() {
if recentKeys.count > capacity, let keyToEvict = recentKeys.first {
recentKeys.removeFirst()
cache.removeValue(forKey: keyToEvict)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = cache[key] else { return nil }
refreshKey(key)
return item.value
}
set {
if let value = newValue {
cache[key] = CacheItem(key: key, value: value)
refreshKey(key)
evictItem()
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CacheItem] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1) // Ensure capacity is at least 1
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
}
private func evictItem() {
if recentKeys.count > capacity, let keyToEvict = recentKeys.first {
recentKeys.removeFirst()
cache.removeValue(forKey: keyToEvict)
}
}
subscript(key: Key) -> Element? {
get {
guard let item = cache[key] else { return nil }
refreshKey(key)
return item.value
}
set {
if let value = newValue {
cache[key] = CacheItem(key: key, value: value)
refreshKey(key)
evictItem()
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
let payload = CachePayload(key: key, value: value)
cache[key] = payload
refreshKey(key)
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
let payload = CachePayload(key: key, value: value)
cache[key] = payload
refreshKey(key)
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
}
private func evictIfNeeded() {
guard recentKeys.count > capacity else { return }
let keyToRemove = recentKeys.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
cache[key] = CachePayload(key: key, value: value)
refreshKey(key)
evictIfNeeded()
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
}
private func evictIfNeeded() {
guard recentKeys.count > capacity else { return }
let keyToRemove = recentKeys.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
cache[key] = CachePayload(key: key, value: value)
refreshKey(key)
evictIfNeeded()
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
let payload = CachePayload(key: key, value: value)
cache[key] = payload
refreshKey(key)
} else {
cache.removeValue(forKey: key)
recentKeys.removeAll { $0 == key }
}
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
let payload = CachePayload(key: key, value: value)
cache[key] = payload
refreshKey(key)
} else {
cache.removeValue(forKey: key)
recentKeys.removeAll { $0 == key }
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else {
return nil
}
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
cache[key] = CachePayload(key: key, value: value)
refreshKey(key)
} else {
cache.removeValue(forKey: key)
recentKeys.removeAll { $0 == key }
}
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else {
return nil
}
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
cache[key] = CachePayload(key: key, value: value)
refreshKey(key)
} else {
cache.removeValue(forKey: key)
recentKeys.removeAll { $0 == key }
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else {
return nil
}
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
cache[key] = CachePayload(key: key, value: value)
refreshKey(key)
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else {
return nil
}
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
cache[key] = CachePayload(key: key, value: value)
refreshKey(key)
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
let payload = CachePayload(key: key, value: value)
cache[key] = payload
refreshKey(key)
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
let payload = CachePayload(key: key, value: value)
cache[key] = payload
refreshKey(key)
} else {
cache.removeValue(forKey: key)
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
let payload = CachePayload(key: key, value: value)
cache[key] = payload
refreshKey(key)
} else {
cache.removeValue(forKey: key)
recentKeys.removeAll { $0 == key }
}
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CachePayload {
let key: Key
let value: Element
}
private let capacity: Int
private var cache: [Key: CachePayload] = [:]
private var recentKeys: [Key] = []
required init(capacity: Int) {
self.capacity = max(capacity, 1)
}
private func refreshKey(_ key: Key) {
if let index = recentKeys.firstIndex(of: key) {
recentKeys.remove(at: index)
}
recentKeys.append(key)
if recentKeys.count > capacity {
let removedKey = recentKeys.removeFirst()
cache.removeValue(forKey: removedKey)
}
}
subscript(key: Key) -> Element? {
get {
guard let payload = cache[key] else { return nil }
refreshKey(key)
return payload.value
}
set {
if let value = newValue {
let payload = CachePayload(key: key, value: value)
cache[key] = payload
refreshKey(key)
} else {
cache.removeValue(forKey: key)
recentKeys.removeAll { $0 == key }
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
let value: Element
}
private var capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.items = [Key: CacheItem](minimumCapacity: capacity)
self.order = []
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
refreshItemOrder(forKey: key)
return item.value
}
set {
if let value = newValue {
if items[key] != nil {
items[key] = CacheItem(key: key, value: value)
refreshItemOrder(forKey: key)
} else {
if items.count >= capacity {
evictLeastRecentlyUsedItem()
}
let newItem = CacheItem(key: key, value: value)
items[key] = newItem
order.append(key)
}
} else {
removeItem(forKey: key)
}
}
}
private func refreshItemOrder(forKey key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
}
private func evictLeastRecentlyUsedItem() {
let leastRecentlyUsedKey = order.removeFirst()
items.removeValue(forKey: leastRecentlyUsedKey)
}
private func removeItem(forKey key: Key) {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}```swift
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private struct CacheItem {
let key: Key
let value: Element
}
private var capacity: Int
private var items: [Key: CacheItem]
private var order: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.items = [Key: CacheItem](minimumCapacity: capacity)
self.order = []
}
subscript(key: Key) -> Element? {
get {
guard let item = items[key] else { return nil }
refreshItemOrder(forKey: key)
return item.value
}
set {
if let value = newValue {
if items[key] != nil {
items[key] = CacheItem(key: key, value: value)
refreshItemOrder(forKey: key)
} else {
if items.count >= capacity {
evictLeastRecentlyUsedItem()
}
let newItem = CacheItem(key: key, value: value)
items[key] = newItem
order.append(key)
}
} else {
removeItem(forKey: key)
}
}
}
private func refreshItemOrder(forKey key: Key) {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
}
private func evictLeastRecentlyUsedItem() {
let leastRecentlyUsedKey = order.removeFirst()
items.removeValue(forKey: leastRecentlyUsedKey)
}
private func removeItem(forKey key: Key) {
items.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
```protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheItem(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
cache[key] = nil
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheItem(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
cache[key] = nil
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.ExpirableCache", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.ExpirableCache", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.cacheQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default 5 minutes expiration
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.cacheQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default 5 minutes expiration
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheItem(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
cache[key] = nil
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 300) // Default expiration time
} else {
queue.sync {
cache[key] = nil
}
}
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheItem(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
cache[key] = nil
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 300) // Default expiration time
} else {
queue.sync {
cache[key] = nil
}
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.queue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.queue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.cacheQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.cacheQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheItem(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else {
return nil
}
if Date() > item.expirationDate {
cache[key] = nil
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheItem(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else {
return nil
}
if Date() > item.expirationDate {
cache[key] = nil
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheItem(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
cache[key] = nil
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheItem(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
cache[key] = nil
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.cacheQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time, e.g., 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.cacheQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time, e.g., 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.cacheQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.yourapp.cacheQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache.removeValue(forKey: key)
return nil
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
} else {
cache.removeValue(forKey: key)
}
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache.removeValue(forKey: key)
return nil
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
} else {
cache.removeValue(forKey: key)
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.concurrentQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.concurrentQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.concurrentQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let entry = CacheEntry(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = entry
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.concurrentQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let entry = CacheEntry(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = entry
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.concurrentQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheItem {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheItem] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.concurrentQueue", attributes: .concurrent)
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
let item = CacheItem(value: value, expirationDate: expirationDate)
queue.async(flags: .barrier) {
self.cache[key] = item
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key] else { return nil }
if Date() > item.expirationDate {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return nil
}
return item.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.async(flags: .barrier) {
self.cache.removeValue(forKey: key)
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let value = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: value, key: key, expiration: 300) // Default expiration time
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private struct CacheEntry {
let value: Value
let expirationDate: Date
}
private var cache: [Key: CacheEntry] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.serialQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.sync {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = CacheEntry(value: value, expirationDate: expirationDate)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let entry = cache[key] else { return nil }
if Date() > entry.expirationDate {
cache[key] = nil
return nil
}
return entry.value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
queue.sync {
cache[key] = nil
}
return
}
put(value: newValue, key: key, expiration: 300) // Default expiration time of 5 minutes
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
let keyLength = key.count
return bytes.enumerated().map { index, byte in
byte ^ key[index % keyLength]
}
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
let keyLength = key.count
return bytes.enumerated().map { index, byte in
byte ^ key[index % keyLength]
}
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let stringData = string.data(using: .utf8) else { return Data() }
let keyData = key.data(using: .utf8) ?? Data()
let encryptedBytes = xor(data: stringData, key: keyData)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8) ?? Data()
let decryptedBytes = xor(data: data, key: keyData)
return String(data: Data(decryptedBytes), encoding: .utf8) ?? ""
}
private func xor(data: Data, key: Data) -> [UInt8] {
let keyBytes = Array(key)
let dataBytes = Array(data)
let keyLength = keyBytes.count
var result = [UInt8]()
for i in 0..<dataBytes.count {
result.append(dataBytes[i] ^ keyBytes[i % keyLength])
}
return result
}
}```swift
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let stringData = string.data(using: .utf8) else { return Data() }
let keyData = key.data(using: .utf8) ?? Data()
let encryptedBytes = xor(data: stringData, key: keyData)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8) ?? Data()
let decryptedBytes = xor(data: data, key: keyData)
return String(data: Data(decryptedBytes), encoding: .utf8) ?? ""
}
private func xor(data: Data, key: Data) -> [UInt8] {
let keyBytes = Array(key)
let dataBytes = Array(data)
let keyLength = keyBytes.count
var result = [UInt8]()
for i in 0..<dataBytes.count {
result.append(dataBytes[i] ^ keyBytes[i % keyLength])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let encryptedBytes = zip(textData, keyData.cycle()).map { $0 ^ $1 }
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let decryptedBytes = zip(data, keyData.cycle()).map { $0 ^ $1 }
return String(data: Data(decryptedBytes), encoding: .utf8) ?? ""
}
}
private extension Data {
func cycle() -> AnyIterator<UInt8> {
var index = 0
return AnyIterator {
defer { index = (index + 1) % self.count }
return self[index]
}
}
}```swift
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let encryptedBytes = zip(textData, keyData.cycle()).map { $0 ^ $1 }
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let decryptedBytes = zip(data, keyData.cycle()).map { $0 ^ $1 }
return String(data: Data(decryptedBytes), encoding: .utf8) ?? ""
}
}
private extension Data {
func cycle() -> AnyIterator<UInt8> {
var index = 0
return AnyIterator {
defer { index = (index + 1) % self.count }
return self[index]
}
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let encryptedBytes = zip(textData, keyData.cycle()).map { $0 ^ $1 }
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let decryptedBytes = zip(data, keyData.cycle()).map { $0 ^ $1 }
return String(data: Data(decryptedBytes), encoding: .utf8)!
}
}
private extension Collection where Iterator.Element == UInt8 {
func cycle() -> AnyIterator<UInt8> {
var iterator = self.makeIterator()
return AnyIterator {
if let next = iterator.next() {
return next
} else {
iterator = self.makeIterator()
return iterator.next()
}
}
}
}```swift
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let encryptedBytes = zip(textData, keyData.cycle()).map { $0 ^ $1 }
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let decryptedBytes = zip(data, keyData.cycle()).map { $0 ^ $1 }
return String(data: Data(decryptedBytes), encoding: .utf8)!
}
}
private extension Collection where Iterator.Element == UInt8 {
func cycle() -> AnyIterator<UInt8> {
var iterator = self.makeIterator()
return AnyIterator {
if let next = iterator.next() {
return next
} else {
iterator = self.makeIterator()
return iterator.next()
}
}
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
let keyLength = key.count
return bytes.enumerated().map { index, byte in
byte ^ key[index % keyLength]
}
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
let keyLength = key.count
return bytes.enumerated().map { index, byte in
byte ^ key[index % keyLength]
}
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encryptedData = Data(capacity: textData.count)
for i in 0..<textData.count {
let textByte = textData[i]
let keyByte = keyData[i % keyLength]
let encryptedByte = textByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = Data(capacity: data.count)
for i in 0..<data.count {
let encryptedByte = data[i]
let keyByte = keyData[i % keyLength]
let decryptedByte = encryptedByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}```swift
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encryptedData = Data(capacity: textData.count)
for i in 0..<textData.count {
let textByte = textData[i]
let keyByte = keyData[i % keyLength]
let encryptedByte = textByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = Data(capacity: data.count)
for i in 0..<data.count {
let encryptedByte = data[i]
let keyByte = keyData[i % keyLength]
let decryptedByte = encryptedByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let textBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(textBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ textBytes: [UInt8], _ keyBytes: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<textBytes.count {
result.append(textBytes[i] ^ keyBytes[i % keyBytes.count])
}
return result
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let textBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(textBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ textBytes: [UInt8], _ keyBytes: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<textBytes.count {
result.append(textBytes[i] ^ keyBytes[i % keyBytes.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ data: [UInt8], _ key: [UInt8]) -> [UInt8] {
let keyLength = key.count
var result = [UInt8]()
for i in 0..<data.count {
result.append(data[i] ^ key[i % keyLength])
}
return result
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ data: [UInt8], _ key: [UInt8]) -> [UInt8] {
let keyLength = key.count
var result = [UInt8]()
for i in 0..<data.count {
result.append(data[i] ^ key[i % keyLength])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encryptedData = Data(capacity: textData.count)
for (index, byte) in textData.enumerated() {
let keyByte = keyData[index % keyLength]
let encryptedByte = byte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = Data(capacity: data.count)
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyLength]
let decryptedByte = byte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encryptedData = Data(capacity: textData.count)
for (index, byte) in textData.enumerated() {
let keyByte = keyData[index % keyLength]
let encryptedByte = byte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = Data(capacity: data.count)
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyLength]
let decryptedByte = byte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = [UInt8](string.utf8)
let keyBytes = [UInt8](key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = [UInt8](data)
let keyBytes = [UInt8](key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encryptedData = Data(capacity: textData.count)
for i in 0..<textData.count {
encryptedData.append(textData[i] ^ keyData[i % keyLength])
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = Data(capacity: data.count)
for i in 0..<data.count {
decryptedData.append(data[i] ^ keyData[i % keyLength])
}
return String(data: decryptedData, encoding: .utf8)!
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encryptedData = Data(capacity: textData.count)
for i in 0..<textData.count {
encryptedData.append(textData[i] ^ keyData[i % keyLength])
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = Data(capacity: data.count)
for i in 0..<data.count {
decryptedData.append(data[i] ^ keyData[i % keyLength])
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ data: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<data.count {
result.append(data[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ data: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<data.count {
result.append(data[i] ^ key[i % key.count])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let textBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(textBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ textBytes: [UInt8], _ keyBytes: [UInt8]) -> [UInt8] {
let keyLength = keyBytes.count
var result = [UInt8]()
for i in 0..<textBytes.count {
result.append(textBytes[i] ^ keyBytes[i % keyLength])
}
return result
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let textBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(textBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ textBytes: [UInt8], _ keyBytes: [UInt8]) -> [UInt8] {
let keyLength = keyBytes.count
var result = [UInt8]()
for i in 0..<textBytes.count {
result.append(textBytes[i] ^ keyBytes[i % keyLength])
}
return result
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
import Foundation
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}```swift
import Foundation
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let textBytes = Array(string.utf8)
let keyBytes = Array(key.utf8)
let encryptedBytes = xor(textBytes, keyBytes)
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
let encryptedBytes = Array(data)
let keyBytes = Array(key.utf8)
let decryptedBytes = xor(encryptedBytes, keyBytes)
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
private func xor(_ bytes: [UInt8], _ key: [UInt8]) -> [UInt8] {
var result = [UInt8]()
for i in 0..<bytes.count {
result.append(bytes[i] ^ key[i % key.count])
}
return result
}
}
```protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
import Foundation
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}```swift
import Foundation
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var timestamps: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.timestamps = []
}
func allowRequest() -> Bool {
let now = Date()
timestamps = timestamps.filter { now.timeIntervalSince($0) < timeInterval }
if timestamps.count < maxRequests {
timestamps.append(now)
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
return queue.sync {
value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
return self.value
}
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = self.execute() as! T
let initialResult = transform(initialValue)
let newPipeline = Pipeline<U>(value: initialResult)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
return transformation(currentResult) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = self.execute() as! T
let initialResult = transform(initialValue)
let newPipeline = Pipeline<U>(value: initialResult)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
return transformation(currentResult) as! T
}
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'let initialValue = self.execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = self.transformations
newTransformations.append(transform)
let initialValue = self.execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
let result = transformation(currentResult)
return result as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = self.transformations
newTransformations.append(transform)
let initialValue = self.execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
let result = transformation(currentResult)
return result as! T
}
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'let initialValue = self.execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = self.execute() as! T
let intermediateResult = transform(initialValue)
let newPipeline = Pipeline<U>(value: intermediateResult)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
let result = transformation(currentResult)
return result as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = self.execute() as! T
let intermediateResult = transform(initialValue)
let newPipeline = Pipeline<U>(value: intermediateResult)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
let result = transformation(currentResult)
return result as! T
}
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'let initialValue = self.execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = executeTransformationChain(value: value, transformations: newTransformations)
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return executeTransformationChain(value: value, transformations: transformations)
}
private func executeTransformationChain(value: Any, transformations: [(Any) -> Any]) -> T {
var currentValue = value
for transformation in transformations {
currentValue = transformation(currentValue)
}
return currentValue as! T
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = executeTransformationChain(value: value, transformations: newTransformations)
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return executeTransformationChain(value: value, transformations: transformations)
}
private func executeTransformationChain(value: Any, transformations: [(Any) -> Any]) -> T {
var currentValue = value
for transformation in transformations {
currentValue = transformation(currentValue)
}
return currentValue as! T
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'let newPipeline = Pipeline<U>(value: initialValue) // cannot convert value of type 'T' to expected argument type 'U'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
return transformation(currentResult) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
return transformation(currentResult) as! T
}
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'let initialValue = execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}
```let initialValue = execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = self.execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = self.execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}
```let initialValue = self.execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}
```let initialValue = execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = self.transformations
newTransformations.append({ input in
transform(input as! T)
})
let newPipeline = Pipeline<U>(value: transform(self.value))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = self.transformations
newTransformations.append({ input in
transform(input as! T)
})
let newPipeline = Pipeline<U>(value: transform(self.value))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> // cannot specialize non-generic type 'Pipeline'class Pipeline<<T>: PipelineProtocol { // type 'Pipeline' does not conform to protocol 'PipelineProtocol'class Pipeline<<T>: PipelineProtocol { // expected an identifier to name generic parametertypealias Output = T // cannot find type 'T' in scopeprivate var value: T // cannot find type 'T' in scoperequired init(value: T) { // cannot find type 'T' in scopefunc pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> { // cannot specialize non-generic type 'Pipeline'func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> { // cannot find type 'T' in scopetransform(input as! T) // cannot find type 'T' in scopelet newPipeline = Pipeline<U>(value: transform(self.value)) // cannot specialize non-generic type 'Pipeline'func execute() -> T { // cannot find type 'T' in scopeprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = transformations.reduce(value) { (currentResult, transformation) in
transformation(currentResult) as! T
}
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
transformation(currentResult) as! T
}
}
}<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = transformations.reduce(value) { (currentResult, transformation) in
transformation(currentResult) as! T
}
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
transformation(currentResult) as! T
}
}
}func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> // cannot specialize non-generic type 'Pipeline'class Pipeline<<T>: PipelineProtocol { // type 'Pipeline' does not conform to protocol 'PipelineProtocol'class Pipeline<<T>: PipelineProtocol { // expected an identifier to name generic parametertypealias Output = T // cannot find type 'T' in scopeprivate var value: T // cannot find type 'T' in scoperequired init(value: T) { // cannot find type 'T' in scopefunc pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> { // cannot specialize non-generic type 'Pipeline'func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> { // cannot find type 'T' in scopetransformation(currentResult) as! T // forced cast of 'Any' to same type has no effecttransformation(currentResult) as! T // cannot find type 'T' in scopelet newPipeline = Pipeline<U>(value: transform(initialValue)) // cannot specialize non-generic type 'Pipeline'func execute() -> T { // cannot find type 'T' in scopeprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = self.transformations
newTransformations.append(transform)
let initialValue = self.transformations.reduce(self.value) { (currentResult, transformation) in
transformation(currentResult)
}
let newPipeline = Pipeline<U>(value: initialValue as! U)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return self.transformations.reduce(self.value) { (currentResult, transformation) in
transformation(currentResult)
} as! T
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = self.transformations
newTransformations.append(transform)
let initialValue = self.transformations.reduce(self.value) { (currentResult, transformation) in
transformation(currentResult)
}
let newPipeline = Pipeline<U>(value: initialValue as! U)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return self.transformations.reduce(self.value) { (currentResult, transformation) in
transformation(currentResult)
} as! T
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = executeTransformations() as! T
let initialResult = transform(initialValue)
let newPipeline = Pipeline<U>(value: initialResult)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return executeTransformations() as! T
}
private func executeTransformations() -> Any {
return transformations.reduce(value) { currentResult, transformation in
transformation(currentResult)
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = executeTransformations() as! T
let initialResult = transform(initialValue)
let newPipeline = Pipeline<U>(value: initialResult)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return executeTransformations() as! T
}
private func executeTransformations() -> Any {
return transformations.reduce(value) { currentResult, transformation in
transformation(currentResult)
}
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = self.execute() as! T
let transformedValue = transform(initialValue)
let newPipeline = Pipeline<U>(value: transformedValue)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
return transformation(currentResult) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialValue = self.execute() as! T
let transformedValue = transform(initialValue)
let newPipeline = Pipeline<U>(value: transformedValue)
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
return transformation(currentResult) as! T
}
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'let initialValue = self.execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let nextPipeline = Pipeline<U>(value: transform(self.value))
self.transformations.forEach { transformation in
let transformedValue = transformation(self.value)
if let castedValue = transformedValue as? T {
nextPipeline.value = transform(castedValue)
}
}
nextPipeline.transformations = self.transformations.map { existingTransformation in
return { anyInput in
if let castedInput = anyInput as? T {
return transform(existingTransformation(castedInput) as! T)
}
return anyInput
}
}
nextPipeline.transformations.append { anyInput in
if let castedInput = anyInput as? T {
return transform(castedInput)
}
return anyInput
}
return nextPipeline
}
func execute() -> T {
var currentValue: Any = self.value
transformations.forEach { transformation in
currentValue = transformation(currentValue)
}
return currentValue as! T
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let nextPipeline = Pipeline<U>(value: transform(self.value))
self.transformations.forEach { transformation in
let transformedValue = transformation(self.value)
if let castedValue = transformedValue as? T {
nextPipeline.value = transform(castedValue)
}
}
nextPipeline.transformations = self.transformations.map { existingTransformation in
return { anyInput in
if let castedInput = anyInput as? T {
return transform(existingTransformation(castedInput) as! T)
}
return anyInput
}
}
nextPipeline.transformations.append { anyInput in
if let castedInput = anyInput as? T {
return transform(castedInput)
}
return anyInput
}
return nextPipeline
}
func execute() -> T {
var currentValue: Any = self.value
transformations.forEach { transformation in
currentValue = transformation(currentValue)
}
return currentValue as! T
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialResult = newTransformations.reduce(value as Any) { result, function in
function(result)
}
return Pipeline<U>(value: initialResult as! U)
}
func execute() -> T {
return transformations.reduce(value as Any) { result, function in
function(result)
} as! T
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append(transform)
let initialResult = newTransformations.reduce(value as Any) { result, function in
function(result)
}
return Pipeline<U>(value: initialResult as! U)
}
func execute() -> T {
return transformations.reduce(value as Any) { result, function in
function(result)
} as! T
}
}
```newTransformations.append(transform) // cannot convert value of type '(T) -> U' to expected argument type '(Any) -> Any'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = self.transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = self.execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = self.transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = self.execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}
```let initialValue = self.execute() as! T // forced cast of 'T' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: transform(self.value))
newPipeline.transformations = self.transformations.map { existingTransform in
{ anyInput in
transform(existingTransform(anyInput) as! T)
}
}
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { currentResult, transformation in
transformation(currentResult) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: transform(self.value))
newPipeline.transformations = self.transformations.map { existingTransform in
{ anyInput in
transform(existingTransform(anyInput) as! T)
}
}
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { currentResult, transformation in
transformation(currentResult) as! T
}
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { x in transform(x as! T) }
let newPipeline = Pipeline<U>(value: transform(value))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { x in transform(x as! T) }
let newPipeline = Pipeline<U>(value: transform(value))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append({ input in transform(input as! T) })
let newPipeline = Pipeline<U>(value: transform(value))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append({ input in transform(input as! T) })
let newPipeline = Pipeline<U>(value: transform(value))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { result, transform in
transform(result) as! T
}
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
transformation(currentResult) as! T
}
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(Any) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
var newTransformations = transformations
newTransformations.append { input in
transform(input as! T)
}
let initialValue = execute() as! T
let newPipeline = Pipeline<U>(value: transform(initialValue))
newPipeline.transformations = newTransformations
return newPipeline
}
func execute() -> T {
return transformations.reduce(value) { (currentResult, transformation) in
transformation(currentResult) as! T
}
}
}
```let initialValue = execute() as! T // forced cast of 'T' to same type has no effectprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value on subscribe
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value on subscribe
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify observer immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $0.value(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $0.value(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value on subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $0.value(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value on subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $0.value(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value on subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value on subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value upon subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Optionally notify immediately with current value
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
import Foundation
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value on subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}```swift
import Foundation
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
_value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
observer(_value) // Notify current value on subscription
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.forEach { $1(_value) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(range.lowerBound, newValue), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(range.lowerBound, wrappedValue), range.upperBound)
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
private var value: Value
private var logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
private var value: Value
private var logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private var logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
return performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
return performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentInput: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentInput.append(character)
case .keyboardDeleteBackwards:
if !currentInput.isEmpty {
currentInput.removeLast()
}
case .searchButtonPress:
return performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
let city = currentInput.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentInput: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentInput.append(character)
case .keyboardDeleteBackwards:
if !currentInput.isEmpty {
currentInput.removeLast()
}
case .searchButtonPress:
return performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
let city = currentInput.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
return performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
return performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentInput: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentInput.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentInput.isEmpty {
currentInput.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentInput)
return .success(city: currentInput, forecast: forecast)
} catch {
return .failure(city: currentInput)
}
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentInput: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentInput.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentInput.isEmpty {
currentInput.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentInput)
return .success(city: currentInput, forecast: forecast)
} catch {
return .failure(city: currentInput)
}
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
return performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
return performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: city)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let weatherProvider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.weatherProvider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: "")
}
do {
let forecast = try weatherProvider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let weatherProvider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.weatherProvider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
return nil
case .searchButtonPress:
return performSearch()
}
}
private func performSearch() -> ApplicationFeedback {
let city = currentSearchText.trimmingCharacters(in: .whitespacesAndNewlines)
if city.isEmpty {
return .failure(city: "")
}
do {
let forecast = try weatherProvider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentSearchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchText.append(character)
case .keyboardDeleteBackwards:
if !currentSearchText.isEmpty {
currentSearchText.removeLast()
}
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchText)
return .success(city: currentSearchText, forecast: forecast)
} catch {
return .failure(city: currentSearchText)
}
}
return nil
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentInput: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentInput.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentInput.isEmpty {
currentInput.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentInput)
return .success(city: currentInput, forecast: forecast)
} catch {
return .failure(city: currentInput)
}
}
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private var provider: WeatherProvider
private var currentInput: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentInput.append(character)
return nil
case .keyboardDeleteBackwards:
if !currentInput.isEmpty {
currentInput.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentInput)
return .success(city: currentInput, forecast: forecast)
} catch {
return .failure(city: currentInput)
}
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount > currentBalance {
return false
} else {
currentBalance -= amount
return true
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount > currentBalance {
return false
} else {
currentBalance -= amount
return true
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if currentBalance >= amount {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
return currentBalance
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= currentBalance {
currentBalance -= amount
return true
} else {
return false
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
import Foundation
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
get {
return currentBalance
}
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount > currentBalance {
return false
} else {
currentBalance -= amount
return true
}
}
}```swift
import Foundation
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var currentBalance: Double
required init(balance: Double) {
self.currentBalance = balance
}
var balance: Double {
get {
return currentBalance
}
}
func deposit(amount: Double) async {
currentBalance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount > currentBalance {
return false
} else {
currentBalance -= amount
return true
}
}
}
```required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let valueProvider: () -> Value
private let condition: () -> Bool
private var cachedValue: Value?
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
self.cachedValue = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
cachedValue = valueProvider()
lastConditionResult = currentConditionResult
}
return cachedValue!
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let valueProvider: () -> Value
private let condition: () -> Bool
private var cachedValue: Value?
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
self.cachedValue = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
cachedValue = valueProvider()
lastConditionResult = currentConditionResult
}
return cachedValue!
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = condition()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if currentConditionResult != lastConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if currentConditionResult != lastConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let conditionProvider: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.conditionProvider = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = conditionProvider()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let conditionProvider: () -> Bool
private var lastConditionValue: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.conditionProvider = condition
self.lastConditionValue = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionValue = conditionProvider()
if currentConditionValue != lastConditionValue {
value = valueProvider()
lastConditionValue = currentConditionValue
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if currentConditionResult != lastConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = condition()
self.value = valueProvider()
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if currentConditionResult != lastConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let valueProvider: () -> Value
private let condition: () -> Bool
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
value = valueProvider()
lastConditionResult = currentConditionResult
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let valueProvider: () -> Value
private let condition: () -> Bool
private var cachedValue: Value?
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.cachedValue = nil
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
cachedValue = valueProvider()
lastConditionResult = currentConditionResult
}
return cachedValue!
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let valueProvider: () -> Value
private let condition: () -> Bool
private var cachedValue: Value?
private var lastConditionResult: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.valueProvider = wrappedValue
self.condition = condition
self.cachedValue = nil
self.lastConditionResult = nil
}
var wrappedValue: Value {
mutating get {
let currentConditionResult = condition()
if lastConditionResult == nil || lastConditionResult != currentConditionResult {
cachedValue = valueProvider()
lastConditionResult = currentConditionResult
}
return cachedValue!
}
}
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(left: @escaping (A) -> B, right: @escaping (B) -> C) -> (A) -> C {
return { a in right(left(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
infix operator >>>: FunctionCompositionPrecedence
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { a in rhs(lhs(a)) }
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream read error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error: you can check inputStream.streamError
return nil
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error: you can check inputStream.streamError
return nil
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error, possibly by throwing or returning nil
print("Error reading from stream: \(inputStream.streamError?.localizedDescription ?? "Unknown error")")
return nil
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error, possibly by throwing or returning nil
print("Error reading from stream: \(inputStream.streamError?.localizedDescription ?? "Unknown error")")
return nil
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or EOF
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or EOF
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or end of stream
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error: you can also throw an error if needed
print("Stream read error occurred.")
return nil
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error: you can also throw an error if needed
print("Stream read error occurred.")
return nil
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or EOF
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer { inputStream.close() }
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error or EOF
if let error = inputStream.streamError {
print("Stream error: \(error)")
return nil
}
break
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer {
inputStream.close()
}
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error: you can check inputStream.streamError
return nil
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer {
inputStream.close()
}
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let read = inputStream.read(buffer, maxLength: bufferSize)
if read < 0 {
// Handle error: you can check inputStream.streamError
return nil
}
hasher.update(bufferPointer: UnsafeRawBufferPointer(start: buffer, count: read))
}
return hasher.finalize()
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let tupleArray = [
tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7,
tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15
]
var cString: [CChar] = []
for value in tupleArray {
if value == 0 {
break
}
cString.append(CChar(value))
}
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let tupleArray = [
tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7,
tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15
]
var cString: [CChar] = []
for value in tupleArray {
if value == 0 {
break
}
cString.append(CChar(value))
}
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used // Fatal error: input of String.init(cString:) must be null-terminatedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let tupleArray = [
tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7,
tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15
]
var cString: [CChar] = []
for char in tupleArray {
if char == 0 {
break
}
cString.append(CChar(char))
}
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let tupleArray = [
tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7,
tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15
]
var cString: [CChar] = []
for char in tupleArray {
if char == 0 {
break
}
cString.append(CChar(char))
}
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never used // Fatal error: input of String.init(cString:) must be null-terminatedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
let int8Array = mirror.children.map { $0.value as? Int8 }.compactMap { $0 }
let validChars = int8Array.prefix { $0 != 0 }
let charArray = validChars.map { Character(UnicodeScalar(UInt8($0))) }
self.init(charArray)
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
let int8Array = mirror.children.map { $0.value as? Int8 }.compactMap { $0 }
let validChars = int8Array.prefix { $0 != 0 }
let charArray = validChars.map { Character(UnicodeScalar(UInt8($0))) }
self.init(charArray)
}
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self.init(cString: cString)
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self.init(cString: cString)
}
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
let values = mirror.children.map { Int8($0.value as! Int8) }
var cString: [CChar] = []
for value in values {
if value == 0 { break }
cString.append(CChar(value))
}
cString.append(0) // Ensure null termination
self = String(cString: cString) ?? ""
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
let values = mirror.children.map { Int8($0.value as! Int8) }
var cString: [CChar] = []
for value in values {
if value == 0 { break }
cString.append(CChar(value))
}
cString.append(0) // Ensure null termination
self = String(cString: cString) ?? ""
}
}
```self = String(cString: cString) ?? "" // left side of nil coalescing operator '??' has non-optional type 'String', so the right side is never usedtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self.init(cString: cString)
}
}```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let mirror = Mirror(reflecting: tuple16)
var cString: [CChar] = []
for child in mirror.children {
if let value = child.value as? Int8, value != 0 {
cString.append(CChar(value))
} else {
break
}
}
cString.append(0) // Null-termination
self.init(cString: cString)
}
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer dimensions and pixel format type match
let widthMatch = CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs)
let heightMatch = CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs)
let formatMatch = CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs)
if !widthMatch || !heightMatch || !formatMatch {
return false
}
// Lock the pixel buffers' base address for reading
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare row bytes and buffer size
let lhsRowBytes = CVPixelBufferGetBytesPerRow(lhs)
let rhsRowBytes = CVPixelBufferGetBytesPerRow(rhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
if lhsRowBytes != rhsRowBytes {
return false
}
// Get the base address of the pixel buffers
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
// Compare memory contents
let bufferSize = lhsRowBytes * lhsHeight
return memcmp(lhsBaseAddress, rhsBaseAddress, bufferSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer dimensions and pixel format type match
let widthMatch = CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs)
let heightMatch = CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs)
let formatMatch = CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs)
if !widthMatch || !heightMatch || !formatMatch {
return false
}
// Lock the pixel buffers' base address for reading
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare row bytes and buffer size
let lhsRowBytes = CVPixelBufferGetBytesPerRow(lhs)
let rhsRowBytes = CVPixelBufferGetBytesPerRow(rhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
if lhsRowBytes != rhsRowBytes {
return false
}
// Get the base address of the pixel buffers
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
// Compare memory contents
let bufferSize = lhsRowBytes * lhsHeight
return memcmp(lhsBaseAddress, rhsBaseAddress, bufferSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
let bufferLength = lhsHeight * lhsBytesPerRow
return memcmp(lhsBaseAddress, rhsBaseAddress, bufferLength) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
let bufferLength = lhsHeight * lhsBytesPerRow
return memcmp(lhsBaseAddress, rhsBaseAddress, bufferLength) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel buffer formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer contents
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel buffer formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer contents
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if the sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if the pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare the data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if the sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if the pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare the data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if the sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if the pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare the data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if the sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if the pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare the data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let widthLHS = CVPixelBufferGetWidth(lhs)
let heightLHS = CVPixelBufferGetHeight(lhs)
let widthRHS = CVPixelBufferGetWidth(rhs)
let heightRHS = CVPixelBufferGetHeight(rhs)
if widthLHS != widthRHS || heightLHS != heightRHS {
return false
}
let pixelFormatLHS = CVPixelBufferGetPixelFormatType(lhs)
let pixelFormatRHS = CVPixelBufferGetPixelFormatType(rhs)
if pixelFormatLHS != pixelFormatRHS {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLHS = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRHS = CVPixelBufferGetBytesPerRow(rhs)
if bytesPerRowLHS != bytesPerRowRHS {
return false
}
let bufferLength = heightLHS * bytesPerRowLHS
return memcmp(baseAddressLHS, baseAddressRHS, bufferLength) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let widthLHS = CVPixelBufferGetWidth(lhs)
let heightLHS = CVPixelBufferGetHeight(lhs)
let widthRHS = CVPixelBufferGetWidth(rhs)
let heightRHS = CVPixelBufferGetHeight(rhs)
if widthLHS != widthRHS || heightLHS != heightRHS {
return false
}
let pixelFormatLHS = CVPixelBufferGetPixelFormatType(lhs)
let pixelFormatRHS = CVPixelBufferGetPixelFormatType(rhs)
if pixelFormatLHS != pixelFormatRHS {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLHS = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRHS = CVPixelBufferGetBytesPerRow(rhs)
if bytesPerRowLHS != bytesPerRowRHS {
return false
}
let bufferLength = heightLHS * bytesPerRowLHS
return memcmp(baseAddressLHS, baseAddressRHS, bufferLength) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
if lhsBaseAddress == nil || rhsBaseAddress == nil {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
let bufferHeight = CVPixelBufferGetHeight(lhs)
let rowLength = min(lhsBytesPerRow, rhsBytesPerRow)
for row in 0..<bufferHeight {
let lhsRow = lhsBaseAddress!.advanced(by: row * lhsBytesPerRow)
let rhsRow = rhsBaseAddress!.advanced(by: row * rhsBytesPerRow)
if memcmp(lhsRow, rhsRow, rowLength) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
if lhsBaseAddress == nil || rhsBaseAddress == nil {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
let bufferHeight = CVPixelBufferGetHeight(lhs)
let rowLength = min(lhsBytesPerRow, rhsBytesPerRow)
for row in 0..<bufferHeight {
let lhsRow = lhsBaseAddress!.advanced(by: row * lhsBytesPerRow)
let rhsRow = rhsBaseAddress!.advanced(by: row * rhsBytesPerRow)
if memcmp(lhsRow, rhsRow, rowLength) != 0 {
return false
}
}
return true
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if the sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if the pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare the data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if the sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if the pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare the data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers' base address to access the data
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers' base address to access the data
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if the pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Check if the dimensions are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Get the base addresses
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
// Get the bytes per row
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
// Compare row by row
for row in 0..<lhsHeight {
let lhsRowAddress = lhsBaseAddress.advanced(by: Int(row) * lhsBytesPerRow)
let rhsRowAddress = rhsBaseAddress.advanced(by: Int(row) * rhsBytesPerRow)
if memcmp(lhsRowAddress, rhsRowAddress, lhsBytesPerRow) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if the pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Check if the dimensions are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Get the base addresses
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
// Get the bytes per row
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
// Compare row by row
for row in 0..<lhsHeight {
let lhsRowAddress = lhsBaseAddress.advanced(by: Int(row) * lhsBytesPerRow)
let rhsRowAddress = rhsBaseAddress.advanced(by: Int(row) * rhsBytesPerRow)
if memcmp(lhsRowAddress, rhsRowAddress, lhsBytesPerRow) != 0 {
return false
}
}
return true
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are equal
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel buffer formats are equal
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers' base address
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer contents
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are equal
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel buffer formats are equal
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers' base address
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer contents
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer contents
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer contents
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel buffer formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers' base address to read data
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bufferHeight = CVPixelBufferGetHeight(lhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
for row in 0..<bufferHeight {
let lhsRowAddress = lhsBaseAddress!.advanced(by: row * lhsBytesPerRow)
let rhsRowAddress = rhsBaseAddress!.advanced(by: row * rhsBytesPerRow)
if memcmp(lhsRowAddress, rhsRowAddress, lhsBytesPerRow) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if pixel buffer sizes are the same
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel buffer formats are the same
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers' base address to read data
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare buffer data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bufferHeight = CVPixelBufferGetHeight(lhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
for row in 0..<bufferHeight {
let lhsRowAddress = lhsBaseAddress!.advanced(by: row * lhsBytesPerRow)
let rhsRowAddress = rhsBaseAddress!.advanced(by: row * rhsBytesPerRow)
if memcmp(lhsRowAddress, rhsRowAddress, lhsBytesPerRow) != 0 {
return false
}
}
return true
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
let bufferLength = lhsHeight * lhsBytesPerRow
return memcmp(lhsBaseAddress, rhsBaseAddress, bufferLength) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
let bufferLength = lhsHeight * lhsBytesPerRow
return memcmp(lhsBaseAddress, rhsBaseAddress, bufferLength) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Compare sizes
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Compare pixel formats
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare bytes per row
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
// Compare data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
if lhsBaseAddress == nil || rhsBaseAddress == nil {
return false
}
let bufferHeight = lhsHeight
let bufferWidthBytes = lhsBytesPerRow
for row in 0..<bufferHeight {
let lhsRowAddress = lhsBaseAddress!.advanced(by: row * lhsBytesPerRow)
let rhsRowAddress = rhsBaseAddress!.advanced(by: row * rhsBytesPerRow)
if memcmp(lhsRowAddress, rhsRowAddress, bufferWidthBytes) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Compare sizes
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Compare pixel formats
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare bytes per row
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
// Compare data
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
if lhsBaseAddress == nil || rhsBaseAddress == nil {
return false
}
let bufferHeight = lhsHeight
let bufferWidthBytes = lhsBytesPerRow
for row in 0..<bufferHeight {
let lhsRowAddress = lhsBaseAddress!.advanced(by: row * lhsBytesPerRow)
let rhsRowAddress = rhsBaseAddress!.advanced(by: row * rhsBytesPerRow)
if memcmp(lhsRowAddress, rhsRowAddress, bufferWidthBytes) != 0 {
return false
}
}
return true
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if sizes are equal
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel formats are equal
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare memory contents
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
// Check if sizes are equal
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
// Check if pixel formats are equal
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
// Lock the pixel buffers
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
// Compare memory contents
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsDataSize = CVPixelBufferGetDataSize(lhs)
let rhsDataSize = CVPixelBufferGetDataSize(rhs)
if lhsDataSize != rhsDataSize {
return false
}
return memcmp(lhsBaseAddress, rhsBaseAddress, lhsDataSize) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
let bufferLength = lhsHeight * lhsBytesPerRow
return memcmp(lhsBaseAddress, rhsBaseAddress, bufferLength) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth != rhsWidth || lhsHeight != rhsHeight {
return false
}
let lhsPixelFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormat != rhsPixelFormat {
return false
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow != rhsBytesPerRow {
return false
}
let bufferLength = lhsHeight * lhsBytesPerRow
return memcmp(lhsBaseAddress, rhsBaseAddress, bufferLength) == 0
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { bytes in
bytes.bindMemory(to: PublicItem.self).prefix(count).map { $0 }
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { bytes in
bytes.bindMemory(to: PublicItem.self).prefix(count).map { $0 }
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.withMemoryRebound(to: PublicItem.self) { publicBuffer in
Array(publicBuffer)
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.withMemoryRebound(to: PublicItem.self) { publicBuffer in
Array(publicBuffer)
}
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { bytes in
bytes.bindMemory(to: PublicItem.self).prefix(count)
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { bytes in
bytes.bindMemory(to: PublicItem.self).prefix(count)
}
}
```return items.withUnsafeBytes { bytes in // type of expression is ambiguous without a type annotationstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
PublicItemBuffer in Array(UnsafeBufferPointer(start: PublicItemBuffer, count: items.count))
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
PublicItemBuffer in Array(UnsafeBufferPointer(start: PublicItemBuffer, count: items.count))
}
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.withMemoryRebound(to: PublicItem.self) { publicBuffer in
return Array(publicBuffer)
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.withMemoryRebound(to: PublicItem.self) { publicBuffer in
return Array(publicBuffer)
}
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { buffer -> [PublicItem] in
let pointer = buffer.baseAddress!.assumingMemoryBound(to: PublicItem.self)
return Array(UnsafeBufferPointer(start: pointer, count: count))
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { buffer -> [PublicItem] in
let pointer = buffer.baseAddress!.assumingMemoryBound(to: PublicItem.self)
return Array(UnsafeBufferPointer(start: pointer, count: count))
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { bytes in
bytes.bindMemory(to: PublicItem.self).prefix(count).map { $0 }
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { bytes in
bytes.bindMemory(to: PublicItem.self).prefix(count).map { $0 }
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
PublicItemBuffer in Array(UnsafeBufferPointer(start: PublicItemBuffer, count: items.count))
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
PublicItemBuffer in Array(UnsafeBufferPointer(start: PublicItemBuffer, count: items.count))
}
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { buffer -> [PublicItem] in
let publicItems = buffer.bindMemory(to: PublicItem.self)
return Array(publicItems)
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { buffer -> [PublicItem] in
let publicItems = buffer.bindMemory(to: PublicItem.self)
return Array(publicItems)
}
}
```let count = items.count // initialization of immutable value 'count' was never used; consider replacing with assignment to '_' or removing itstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { buffer in
Array(UnsafeRawBufferPointer(rebasing: buffer).bindMemory(to: PublicItem.self))
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { buffer in
Array(UnsafeRawBufferPointer(rebasing: buffer).bindMemory(to: PublicItem.self))
}
}
```Array(UnsafeRawBufferPointer(rebasing: buffer).bindMemory(to: PublicItem.self)) // no exact matches in call to initializerstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { bytes in
bytes.bindMemory(to: PublicItem.self).prefix(count).map { $0 }
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { bytes in
bytes.bindMemory(to: PublicItem.self).prefix(count).map { $0 }
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemSize = MemoryLayout<PrivateItem>.stride
let publicItemSize = MemoryLayout<PublicItem>.stride
guard privateItemSize == publicItemSize else {
fatalError("PrivateItem and PublicItem have different memory layouts")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) {
Array(UnsafeBufferPointer(start: $0, count: count))
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemSize = MemoryLayout<PrivateItem>.stride
let publicItemSize = MemoryLayout<PublicItem>.stride
guard privateItemSize == publicItemSize else {
fatalError("PrivateItem and PublicItem have different memory layouts")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) {
Array(UnsafeBufferPointer(start: $0, count: count))
}
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { buffer -> [PublicItem] in
return buffer.bindMemory(to: PublicItem.self).map { $0 }
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { buffer -> [PublicItem] in
return buffer.bindMemory(to: PublicItem.self).map { $0 }
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { buffer -> [PublicItem] in
let pointer = buffer.baseAddress!.assumingMemoryBound(to: PublicItem.self)
return Array(UnsafeBufferPointer(start: pointer, count: count))
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { buffer -> [PublicItem] in
let pointer = buffer.baseAddress!.assumingMemoryBound(to: PublicItem.self)
return Array(UnsafeBufferPointer(start: pointer, count: count))
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { privateBytes in
return privateBytes.bindMemory(to: PublicItem.self).prefix(count).map { $0 }
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
return items.withUnsafeBytes { privateBytes in
return privateBytes.bindMemory(to: PublicItem.self).prefix(count).map { $0 }
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemsSize = MemoryLayout<PrivateItem>.stride * count
let publicItemsSize = MemoryLayout<PublicItem>.stride * count
guard privateItemsSize == publicItemsSize else {
fatalError("Structs have different memory layouts or sizes")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) { publicBuffer in
Array(UnsafeBufferPointer(start: publicBuffer, count: count))
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemsSize = MemoryLayout<PrivateItem>.stride * count
let publicItemsSize = MemoryLayout<PublicItem>.stride * count
guard privateItemsSize == publicItemsSize else {
fatalError("Structs have different memory layouts or sizes")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) { publicBuffer in
Array(UnsafeBufferPointer(start: publicBuffer, count: count))
}
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemSize = MemoryLayout<PrivateItem>.stride
let publicItemSize = MemoryLayout<PublicItem>.stride
guard privateItemSize == publicItemSize else {
fatalError("Structs have different memory layouts")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) {
Array(UnsafeBufferPointer(start: $0, count: count))
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemSize = MemoryLayout<PrivateItem>.stride
let publicItemSize = MemoryLayout<PublicItem>.stride
guard privateItemSize == publicItemSize else {
fatalError("Structs have different memory layouts")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) {
Array(UnsafeBufferPointer(start: $0, count: count))
}
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemSize = MemoryLayout<PrivateItem>.stride
let publicItemSize = MemoryLayout<PublicItem>.stride
guard privateItemSize == publicItemSize else {
fatalError("Structs do not have the same memory layout or size.")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
let publicBuffer = UnsafeRawPointer(privateBuffer.baseAddress!).assumingMemoryBound(to: PublicItem.self)
return Array(UnsafeBufferPointer(start: publicBuffer, count: count))
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemSize = MemoryLayout<PrivateItem>.stride
let publicItemSize = MemoryLayout<PublicItem>.stride
guard privateItemSize == publicItemSize else {
fatalError("Structs do not have the same memory layout or size.")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
let publicBuffer = UnsafeRawPointer(privateBuffer.baseAddress!).assumingMemoryBound(to: PublicItem.self)
return Array(UnsafeBufferPointer(start: publicBuffer, count: count))
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.withMemoryRebound(to: PublicItem.self) { publicBuffer in
Array(publicBuffer)
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.withMemoryRebound(to: PublicItem.self) { publicBuffer in
Array(publicBuffer)
}
}
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
import Foundation
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemSize = MemoryLayout<PrivateItem>.stride
let publicItemSize = MemoryLayout<PublicItem>.stride
guard privateItemSize == publicItemSize else {
fatalError("Structs do not have the same memory layout")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) {
Array(UnsafeBufferPointer(start: $0, count: count))
}
}
}```swift
import Foundation
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let privateItemSize = MemoryLayout<PrivateItem>.stride
let publicItemSize = MemoryLayout<PublicItem>.stride
guard privateItemSize == publicItemSize else {
fatalError("Structs do not have the same memory layout")
}
return items.withUnsafeBufferPointer { privateBuffer -> [PublicItem] in
return privateBuffer.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) {
Array(UnsafeBufferPointer(start: $0, count: count))
}
}
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub == rhsSub {
continue
}
if let lhsInt = Int(lhsSub), let rhsInt = Int(rhsSub) {
if lhsInt < rhsInt {
return .orderedAscending
} else {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub == "beta" {
return .orderedAscending
} else if lhsSub == "beta" && rhsSub == "alpha" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
} else {
return .orderedSame
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub == rhsSub {
continue
}
if let lhsInt = Int(lhsSub), let rhsInt = Int(rhsSub) {
if lhsInt < rhsInt {
return .orderedAscending
} else {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub == "beta" {
return .orderedAscending
} else if lhsSub == "beta" && rhsSub == "alpha" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
} else {
return .orderedSame
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+|\\D+)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let lhsComponents = lhsMatches.map { String(lhs[Range($0.range, in: lhs)!]) }
let rhsComponents = rhsMatches.map { String(rhs[Range($0.range, in: rhs)!]) }
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : ""
if lhsComponent == rhsComponent {
continue
}
let lhsIsNumeric = Int(lhsComponent) != nil
let rhsIsNumeric = Int(rhsComponent) != nil
if lhsIsNumeric && rhsIsNumeric {
let lhsNumber = Int(lhsComponent)!
let rhsNumber = Int(rhsComponent)!
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
} else {
if lhsIsNumeric {
return .orderedAscending
} else if rhsIsNumeric {
return .orderedDescending
} else {
let result = lhsComponent.localizedCompare(rhsComponent)
if result == .orderedAscending {
return .orderedAscending
} else if result == .orderedDescending {
return .orderedDescending
}
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+|\\D+)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let lhsComponents = lhsMatches.map { String(lhs[Range($0.range, in: lhs)!]) }
let rhsComponents = rhsMatches.map { String(rhs[Range($0.range, in: rhs)!]) }
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : ""
if lhsComponent == rhsComponent {
continue
}
let lhsIsNumeric = Int(lhsComponent) != nil
let rhsIsNumeric = Int(rhsComponent) != nil
if lhsIsNumeric && rhsIsNumeric {
let lhsNumber = Int(lhsComponent)!
let rhsNumber = Int(rhsComponent)!
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
} else {
if lhsIsNumeric {
return .orderedAscending
} else if rhsIsNumeric {
return .orderedDescending
} else {
let result = lhsComponent.localizedCompare(rhsComponent)
if result == .orderedAscending {
return .orderedAscending
} else if result == .orderedDescending {
return .orderedDescending
}
}
}
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.allSatisfy({ $0.isNumber }) && rhsSub.allSatisfy({ $0.isNumber }) {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub != "alpha" {
return .orderedAscending
} else if lhsSub != "alpha" && rhsSub == "alpha" {
return .orderedDescending
} else if lhsSub == "beta" && rhsSub != "beta" {
return .orderedAscending
} else if lhsSub != "beta" && rhsSub == "beta" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.allSatisfy({ $0.isNumber }) && rhsSub.allSatisfy({ $0.isNumber }) {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub != "alpha" {
return .orderedAscending
} else if lhsSub != "alpha" && rhsSub == "alpha" {
return .orderedDescending
} else if lhsSub == "beta" && rhsSub != "beta" {
return .orderedAscending
} else if lhsSub != "beta" && rhsSub == "beta" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.allSatisfy({ $0.isNumber }) && rhsSub.allSatisfy({ $0.isNumber }) {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub != "alpha" {
return .orderedAscending
} else if lhsSub != "alpha" && rhsSub == "alpha" {
return .orderedDescending
} else if lhsSub == "beta" && rhsSub != "beta" {
return .orderedAscending
} else if lhsSub != "beta" && rhsSub == "beta" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.allSatisfy({ $0.isNumber }) && rhsSub.allSatisfy({ $0.isNumber }) {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub != "alpha" {
return .orderedAscending
} else if lhsSub != "alpha" && rhsSub == "alpha" {
return .orderedDescending
} else if lhsSub == "beta" && rhsSub != "beta" {
return .orderedAscending
} else if lhsSub != "beta" && rhsSub == "beta" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub == rhsSub {
continue
}
let lhsIsNumeric = Int(lhsSub) != nil
let rhsIsNumeric = Int(rhsSub) != nil
if lhsIsNumeric && rhsIsNumeric {
let lhsInt = Int(lhsSub)!
let rhsInt = Int(rhsSub)!
if lhsInt < rhsInt {
return .orderedAscending
} else {
return .orderedDescending
}
} else if !lhsIsNumeric && !rhsIsNumeric {
if lhsSub < rhsSub {
return .orderedAscending
} else {
return .orderedDescending
}
} else {
return lhsIsNumeric ? .orderedAscending : .orderedDescending
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
} else {
return .orderedSame
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub == rhsSub {
continue
}
let lhsIsNumeric = Int(lhsSub) != nil
let rhsIsNumeric = Int(rhsSub) != nil
if lhsIsNumeric && rhsIsNumeric {
let lhsInt = Int(lhsSub)!
let rhsInt = Int(rhsSub)!
if lhsInt < rhsInt {
return .orderedAscending
} else {
return .orderedDescending
}
} else if !lhsIsNumeric && !rhsIsNumeric {
if lhsSub < rhsSub {
return .orderedAscending
} else {
return .orderedDescending
}
} else {
return lhsIsNumeric ? .orderedAscending : .orderedDescending
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
} else {
return .orderedSame
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.allSatisfy({ $0.isNumber }) && rhsSub.allSatisfy({ $0.isNumber }) {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub == "beta" {
return .orderedAscending
} else if lhsSub == "beta" && rhsSub == "alpha" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.allSatisfy({ $0.isNumber }) && rhsSub.allSatisfy({ $0.isNumber }) {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub == "beta" {
return .orderedAscending
} else if lhsSub == "beta" && rhsSub == "alpha" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minCount = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minCount {
let lhsRange = Range(lhsMatches[i].range, in: lhs)!
let rhsRange = Range(rhsMatches[i].range, in: rhs)!
let lhsPart = String(lhs[lhsRange])
let rhsPart = String(rhs[rhsRange])
if lhsPart.allSatisfy({ $0.isNumber }) && rhsPart.allSatisfy({ $0.isNumber }) {
let lhsNumber = Int(lhsPart)!
let rhsNumber = Int(rhsPart)!
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
} else {
if lhsPart == rhsPart {
continue
} else if lhsPart == "alpha" || (lhsPart == "beta" && rhsPart != "alpha") {
return .orderedAscending
} else {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
} else {
return .orderedSame
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minCount = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minCount {
let lhsRange = Range(lhsMatches[i].range, in: lhs)!
let rhsRange = Range(rhsMatches[i].range, in: rhs)!
let lhsPart = String(lhs[lhsRange])
let rhsPart = String(rhs[rhsRange])
if lhsPart.allSatisfy({ $0.isNumber }) && rhsPart.allSatisfy({ $0.isNumber }) {
let lhsNumber = Int(lhsPart)!
let rhsNumber = Int(rhsPart)!
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
} else {
if lhsPart == rhsPart {
continue
} else if lhsPart == "alpha" || (lhsPart == "beta" && rhsPart != "alpha") {
return .orderedAscending
} else {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
} else {
return .orderedSame
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsRange = Range(lhsMatches[i].range, in: lhs)!
let rhsRange = Range(rhsMatches[i].range, in: rhs)!
let lhsPart = String(lhs[lhsRange])
let rhsPart = String(rhs[rhsRange])
if lhsPart.allSatisfy({ $0.isNumber }) && rhsPart.allSatisfy({ $0.isNumber }) {
let lhsNumber = Int(lhsPart)!
let rhsNumber = Int(rhsPart)!
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
} else {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
} else {
return .orderedSame
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsRange = Range(lhsMatches[i].range, in: lhs)!
let rhsRange = Range(rhsMatches[i].range, in: rhs)!
let lhsPart = String(lhs[lhsRange])
let rhsPart = String(rhs[rhsRange])
if lhsPart.allSatisfy({ $0.isNumber }) && rhsPart.allSatisfy({ $0.isNumber }) {
let lhsNumber = Int(lhsPart)!
let rhsNumber = Int(rhsPart)!
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
} else {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
} else {
return .orderedSame
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
return .orderedSame
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxIndex = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxIndex {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
let rhsNumericPart = rhsPart.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
// Compare pre-release versions if numbers are the same
let lhsPreRelease = lhsPart.split(whereSeparator: { $0.isNumber }).map(String.init).joined()
let rhsPreRelease = rhsPart.split(whereSeparator: { $0.isNumber }).map(String.init).joined()
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxIndex = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxIndex {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
let rhsNumericPart = rhsPart.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
// Compare pre-release versions if numbers are the same
let lhsPreRelease = lhsPart.split(whereSeparator: { $0.isNumber }).map(String.init).joined()
let rhsPreRelease = rhsPart.split(whereSeparator: { $0.isNumber }).map(String.init).joined()
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
return .orderedSame
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
let rhsNumericPart = rhsPart.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsSuffix = lhsPart.drop(while: { $0.isNumber })
let rhsSuffix = rhsPart.drop(while: { $0.isNumber })
if lhsSuffix.isEmpty && rhsSuffix.isEmpty {
continue
} else if lhsSuffix.isEmpty {
return .orderedDescending
} else if rhsSuffix.isEmpty {
return .orderedAscending
} else {
if lhsSuffix < rhsSuffix {
return .orderedAscending
} else if lhsSuffix > rhsSuffix {
return .orderedDescending
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
let rhsNumericPart = rhsPart.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsSuffix = lhsPart.drop(while: { $0.isNumber })
let rhsSuffix = rhsPart.drop(while: { $0.isNumber })
if lhsSuffix.isEmpty && rhsSuffix.isEmpty {
continue
} else if lhsSuffix.isEmpty {
return .orderedDescending
} else if rhsSuffix.isEmpty {
return .orderedAscending
} else {
if lhsSuffix < rhsSuffix {
return .orderedAscending
} else if lhsSuffix > rhsSuffix {
return .orderedDescending
}
}
}
return .orderedSame
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let left = i < lhsComponents.count ? lhsComponents[i] : "0"
let right = i < rhsComponents.count ? rhsComponents[i] : "0"
let leftNumericPart = left.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
let rightNumericPart = right.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
if let leftNumber = Int(leftNumericPart), let rightNumber = Int(rightNumericPart) {
if leftNumber < rightNumber {
return .orderedAscending
} else if leftNumber > rightNumber {
return .orderedDescending
}
}
let leftNonNumeric = left.drop(while: { $0.isNumber })
let rightNonNumeric = right.drop(while: { $0.isNumber })
if leftNonNumeric.isEmpty && !rightNonNumeric.isEmpty {
return .orderedAscending
} else if !leftNonNumeric.isEmpty && rightNonNumeric.isEmpty {
return .orderedDescending
} else if !leftNonNumeric.isEmpty && !rightNonNumeric.isEmpty {
if leftNonNumeric < rightNonNumeric {
return .orderedAscending
} else if leftNonNumeric > rightNonNumeric {
return .orderedDescending
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let left = i < lhsComponents.count ? lhsComponents[i] : "0"
let right = i < rhsComponents.count ? rhsComponents[i] : "0"
let leftNumericPart = left.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
let rightNumericPart = right.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
if let leftNumber = Int(leftNumericPart), let rightNumber = Int(rightNumericPart) {
if leftNumber < rightNumber {
return .orderedAscending
} else if leftNumber > rightNumber {
return .orderedDescending
}
}
let leftNonNumeric = left.drop(while: { $0.isNumber })
let rightNonNumeric = right.drop(while: { $0.isNumber })
if leftNonNumeric.isEmpty && !rightNonNumeric.isEmpty {
return .orderedAscending
} else if !leftNonNumeric.isEmpty && rightNonNumeric.isEmpty {
return .orderedDescending
} else if !leftNonNumeric.isEmpty && !rightNonNumeric.isEmpty {
if leftNonNumeric < rightNonNumeric {
return .orderedAscending
} else if leftNonNumeric > rightNonNumeric {
return .orderedDescending
}
}
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.allSatisfy({ $0.isNumber }) && rhsSub.allSatisfy({ $0.isNumber }) {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub != "alpha" {
return .orderedAscending
} else if lhsSub != "alpha" && rhsSub == "alpha" {
return .orderedDescending
} else if lhsSub == "beta" && rhsSub != "beta" {
return .orderedAscending
} else if lhsSub != "beta" && rhsSub == "beta" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.allSatisfy({ $0.isNumber }) && rhsSub.allSatisfy({ $0.isNumber }) {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub == "alpha" && rhsSub != "alpha" {
return .orderedAscending
} else if lhsSub != "alpha" && rhsSub == "alpha" {
return .orderedDescending
} else if lhsSub == "beta" && rhsSub != "beta" {
return .orderedAscending
} else if lhsSub != "beta" && rhsSub == "beta" {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.isNumeric && rhsSub.isNumeric {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub < rhsSub {
return .orderedAscending
} else if lhsSub > rhsSub {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}
extension String {
var isNumeric: Bool {
return self.rangeOfCharacter(from: CharacterSet.decimalDigits.inverted) == nil
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let regex = try! NSRegularExpression(pattern: "(\\d+)|(alpha|beta)")
let lhsMatches = regex.matches(in: lhs, range: NSRange(lhs.startIndex..., in: lhs))
let rhsMatches = regex.matches(in: rhs, range: NSRange(rhs.startIndex..., in: rhs))
let minLength = min(lhsMatches.count, rhsMatches.count)
for i in 0..<minLength {
let lhsSub = String(lhs[Range(lhsMatches[i].range, in: lhs)!])
let rhsSub = String(rhs[Range(rhsMatches[i].range, in: rhs)!])
if lhsSub.isNumeric && rhsSub.isNumeric {
let lhsNum = Int(lhsSub)!
let rhsNum = Int(rhsSub)!
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
} else {
if lhsSub < rhsSub {
return .orderedAscending
} else if lhsSub > rhsSub {
return .orderedDescending
}
}
}
if lhsMatches.count < rhsMatches.count {
return .orderedAscending
} else if lhsMatches.count > rhsMatches.count {
return .orderedDescending
}
return .orderedSame
}
extension String {
var isNumeric: Bool {
return self.rangeOfCharacter(from: CharacterSet.decimalDigits.inverted) == nil
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxIndex = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxIndex {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxIndex = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxIndex {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxIndex = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxIndex {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxIndex = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxIndex {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxIndex = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxIndex {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxIndex = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxIndex {
let lhsPart = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsPart = i < rhsComponents.count ? rhsComponents[i] : "0"
let lhsNumericPart = lhsPart.split(separator: "-").first ?? ""
let rhsNumericPart = rhsPart.split(separator: "-").first ?? ""
if let lhsNumber = Int(lhsNumericPart), let rhsNumber = Int(rhsNumericPart) {
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
let lhsPreRelease = lhsPart.split(separator: "-").dropFirst().joined(separator: "-")
let rhsPreRelease = rhsPart.split(separator: "-").dropFirst().joined(separator: "-")
if !lhsPreRelease.isEmpty || !rhsPreRelease.isEmpty {
if lhsPreRelease.isEmpty {
return .orderedDescending
} else if rhsPreRelease.isEmpty {
return .orderedAscending
} else {
if lhsPreRelease < rhsPreRelease {
return .orderedAscending
} else if lhsPreRelease > rhsPreRelease {
return .orderedDescending
}
}
}
}
return .orderedSame
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let left = i < lhsComponents.count ? lhsComponents[i] : "0"
let right = i < rhsComponents.count ? rhsComponents[i] : "0"
let leftNumericPart = left.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
let rightNumericPart = right.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
if let leftNumber = Int(leftNumericPart), let rightNumber = Int(rightNumericPart) {
if leftNumber < rightNumber {
return .orderedAscending
} else if leftNumber > rightNumber {
return .orderedDescending
}
}
let leftNonNumeric = left.drop(while: { $0.isNumber })
let rightNonNumeric = right.drop(while: { $0.isNumber })
if leftNonNumeric != rightNonNumeric {
if leftNonNumeric.isEmpty {
return .orderedDescending
} else if rightNonNumeric.isEmpty {
return .orderedAscending
} else {
if leftNonNumeric < rightNonNumeric {
return .orderedAscending
} else {
return .orderedDescending
}
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".")
let rhsComponents = rhs.split(separator: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let left = i < lhsComponents.count ? lhsComponents[i] : "0"
let right = i < rhsComponents.count ? rhsComponents[i] : "0"
let leftNumericPart = left.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
let rightNumericPart = right.split(whereSeparator: { !$0.isNumber }).map(String.init).first ?? ""
if let leftNumber = Int(leftNumericPart), let rightNumber = Int(rightNumericPart) {
if leftNumber < rightNumber {
return .orderedAscending
} else if leftNumber > rightNumber {
return .orderedDescending
}
}
let leftNonNumeric = left.drop(while: { $0.isNumber })
let rightNonNumeric = right.drop(while: { $0.isNumber })
if leftNonNumeric != rightNonNumeric {
if leftNonNumeric.isEmpty {
return .orderedDescending
} else if rightNonNumeric.isEmpty {
return .orderedAscending
} else {
if leftNonNumeric < rightNonNumeric {
return .orderedAscending
} else {
return .orderedDescending
}
}
}
}
return .orderedSame
}
```