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)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
if let json = json {
return json
} else {
throw ParsingError.invalidInput
}
} 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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
if let json = json {
return json
} else {
throw ParsingError.invalidInput
}
} 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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON
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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}```swift
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined(separator: "")
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined(separator: "")
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
"\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { " \($0.key)=\"\($0.value)\"" }.joined()
let childrenString = children.map { generate($0) }.joined()
return "<\(name)\(attributeString)>\(childrenString)</\(name)>"
}
}func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributeString = attributes.map { " \($0.key)=\"\($0.value)\"" }.joined()
let childrenString = children.map { generate($0) }.joined()
return "<\(name)\(attributeString)>\(childrenString)</\(name)>"
}
}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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childrenString = children.map { child in
return generate(child)
}.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}
```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 attributeString = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined()
return "<\(name) \(attributeString)>\(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 attributeString = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined()
return "<\(name) \(attributeString)>\(childrenString)</\(name)>"
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(op)
operators.removeLast()
}
operators.removeLast()
} else if isOperator(token) {
while let op = operators.last, isOperator(op), precedence(op) >= precedence(token) {
output.append(op)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.last {
if op == "(" {
throw CalculateError.invalidInput
}
output.append(op)
operators.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token) {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ token: String) -> Int {
if token == "+" || token == "-" {
return 1
} else if token == "*" || token == "/" {
return 2
}
return 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(op)
operators.removeLast()
}
operators.removeLast()
} else if isOperator(token) {
while let op = operators.last, isOperator(op), precedence(op) >= precedence(token) {
output.append(op)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.last {
if op == "(" {
throw CalculateError.invalidInput
}
output.append(op)
operators.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token) {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ token: String) -> Int {
if token == "+" || token == "-" {
return 1
} else if token == "*" || token == "/" {
return 2
}
return 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(op)
operators.removeLast()
}
operators.removeLast()
} else if precedence.keys.contains(token) {
while let op = operators.last, precedence[op] ?? 0 >= precedence[token] ?? 0 {
output.append(op)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.popLast() {
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 operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
guard operand2 != 0 else {
throw CalculateError.invalidInput
}
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(op)
operators.removeLast()
}
operators.removeLast()
} else if precedence.keys.contains(token) {
while let op = operators.last, precedence[op] ?? 0 >= precedence[token] ?? 0 {
output.append(op)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.popLast() {
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 operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
guard operand2 != 0 else {
throw CalculateError.invalidInput
}
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let topOperator = operatorStack.last, topOperator != "(" {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
if operatorStack.last == "(" {
operatorStack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if isOperator(token) {
while let topOperator = operatorStack.last, isOperator(topOperator), precedence(token) <= precedence(topOperator) {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let topOperator = operatorStack.last {
if topOperator == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operator: String) -> Int {
switch `operator` {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let topOperator = operatorStack.last, topOperator != "(" {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
if operatorStack.last == "(" {
operatorStack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if isOperator(token) {
while let topOperator = operatorStack.last, isOperator(topOperator), precedence(token) <= precedence(topOperator) {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let topOperator = operatorStack.last {
if topOperator == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operator: String) -> Int {
switch `operator` {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let topOperator = operatorStack.last, topOperator != "(" {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
if operatorStack.last == "(" {
operatorStack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if isOperator(token) {
while let topOperator = operatorStack.last, isOperator(topOperator), precedence(token) <= precedence(topOperator) {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let topOperator = operatorStack.last {
if topOperator == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operator: String) -> Int {
if `operator` == "+" || `operator` == "-" {
return 1
} else if `operator` == "*" || `operator` == "/" {
return 2
}
return 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let topOperator = operatorStack.last, topOperator != "(" {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
if operatorStack.last == "(" {
operatorStack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if isOperator(token) {
while let topOperator = operatorStack.last, isOperator(topOperator), precedence(token) <= precedence(topOperator) {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let topOperator = operatorStack.last {
if topOperator == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operator: String) -> Int {
if `operator` == "+" || `operator` == "-" {
return 1
} else if `operator` == "*" || `operator` == "/" {
return 2
}
return 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if "+-*/()".contains(char) {
if !currentToken.isEmpty {
tokens.append(currentToken)
}
tokens.append(String(char))
currentToken = ""
} else {
currentToken.append(char)
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if "+-*/".contains(token) {
while let topOperator = operators.last, isPrecedenceHigher(topOperator, token) {
output.append(operators.removeLast())
}
operators.append(token)
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let topOperator = operators.last, topOperator != "(" {
output.append(operators.removeLast())
}
if operators.isEmpty || operators.removeLast() != "(" {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let operatorToken = operators.popLast() {
if operatorToken == "(" {
throw CalculateError.invalidInput
}
output.append(operatorToken)
}
return output
}
func isPrecedenceHigher(_ op1: String, _ op2: String) -> Bool {
return (op1 == "*" || op1 == "/") && (op2 == "+" || op2 == "-")
}
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) {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
guard operand2 != 0 else {
throw CalculateError.invalidInput
}
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if "+-*/()".contains(char) {
if !currentToken.isEmpty {
tokens.append(currentToken)
}
tokens.append(String(char))
currentToken = ""
} else {
currentToken.append(char)
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if "+-*/".contains(token) {
while let topOperator = operators.last, isPrecedenceHigher(topOperator, token) {
output.append(operators.removeLast())
}
operators.append(token)
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let topOperator = operators.last, topOperator != "(" {
output.append(operators.removeLast())
}
if operators.isEmpty || operators.removeLast() != "(" {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
while let operatorToken = operators.popLast() {
if operatorToken == "(" {
throw CalculateError.invalidInput
}
output.append(operatorToken)
}
return output
}
func isPrecedenceHigher(_ op1: String, _ op2: String) -> Bool {
return (op1 == "*" || op1 == "/") && (op2 == "+" || op2 == "-")
}
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) {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
guard operand2 != 0 else {
throw CalculateError.invalidInput
}
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let topOperator = operatorStack.last, topOperator != "(" {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
operatorStack.removeLast()
} else if precedence.keys.contains(token) {
while let topOperator = operatorStack.last, precedence[topOperator] ?? 0 >= precedence[token] ?? 0 {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let topOperator = operatorStack.last {
if topOperator == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
return postfixTokens
}
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 operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
guard operand2 != 0 else {
throw CalculateError.invalidInput
}
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let topOperator = operatorStack.last, topOperator != "(" {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
operatorStack.removeLast()
} else if precedence.keys.contains(token) {
while let topOperator = operatorStack.last, precedence[topOperator] ?? 0 >= precedence[token] ?? 0 {
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let topOperator = operatorStack.last {
if topOperator == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(topOperator)
operatorStack.removeLast()
}
return postfixTokens
}
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 operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
guard operand2 != 0 else {
throw CalculateError.invalidInput
}
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(op)
operators.removeLast()
}
operators.removeLast()
} else if isOperator(token) {
while let op = operators.last, isOperator(op), precedence(op) >= precedence(token) {
output.append(op)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.last {
if op == "(" {
throw CalculateError.invalidInput
}
output.append(op)
operators.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ token: String) -> Int {
if token == "+" || token == "-" {
return 1
} else if token == "*" || token == "/" {
return 2
}
return 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(op)
operators.removeLast()
}
operators.removeLast()
} else if isOperator(token) {
while let op = operators.last, isOperator(op), precedence(op) >= precedence(token) {
output.append(op)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.last {
if op == "(" {
throw CalculateError.invalidInput
}
output.append(op)
operators.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ token: String) -> Int {
if token == "+" || token == "-" {
return 1
} else if token == "*" || token == "/" {
return 2
}
return 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(op)
operators.removeLast()
}
operators.removeLast()
} else if isOperator(token) {
while let op = operators.last, isOperator(op), precedence(op) >= precedence(token) {
output.append(op)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.last {
if op == "(" {
throw CalculateError.invalidInput
}
output.append(op)
operators.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operator: String) -> Int {
if `operator` == "+" || `operator` == "-" {
return 1
} else if `operator` == "*" || `operator` == "/" {
return 2
} else {
return 0
}
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let op = operators.last, op != "(" {
output.append(op)
operators.removeLast()
}
operators.removeLast()
} else if isOperator(token) {
while let op = operators.last, isOperator(op), precedence(op) >= precedence(token) {
output.append(op)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operators.last {
if op == "(" {
throw CalculateError.invalidInput
}
output.append(op)
operators.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operator: String) -> Int {
if `operator` == "+" || `operator` == "-" {
return 1
} else if `operator` == "*" || `operator` == "/" {
return 2
} else {
return 0
}
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if char.isNumber || char == "." {
currentToken.append(char)
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let top = operatorStack.last, top != "(" {
postfixTokens.append(operatorStack.removeLast())
}
if operatorStack.last == "(" {
operatorStack.removeLast()
}
} else if precedence.keys.contains(token) {
while let top = operatorStack.last, precedence[top] ?? 0 >= precedence[token] ?? 0 {
postfixTokens.append(operatorStack.removeLast())
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while !operatorStack.isEmpty {
postfixTokens.append(operatorStack.removeLast())
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else {
guard let operand2 = stack.popLast(), let operand1 = stack.popLast() else {
throw CalculateError.invalidInput
}
switch token {
case "+":
stack.append(operand1 + operand2)
case "-":
stack.append(operand1 - operand2)
case "*":
stack.append(operand1 * operand2)
case "/":
stack.append(operand1 / operand2)
default:
throw CalculateError.invalidInput
}
}
}
guard let result = stack.first, stack.count == 1 else {
throw CalculateError.invalidInput
}
return result
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if char.isNumber || char == "." {
currentToken.append(char)
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let top = operatorStack.last, top != "(" {
postfixTokens.append(operatorStack.removeLast())
}
if operatorStack.last == "(" {
operatorStack.removeLast()
}
} else if precedence.keys.contains(token) {
while let top = operatorStack.last, precedence[top] ?? 0 >= precedence[token] ?? 0 {
postfixTokens.append(operatorStack.removeLast())
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while !operatorStack.isEmpty {
postfixTokens.append(operatorStack.removeLast())
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else {
guard let operand2 = stack.popLast(), let operand1 = stack.popLast() else {
throw CalculateError.invalidInput
}
switch token {
case "+":
stack.append(operand1 + operand2)
case "-":
stack.append(operand1 - operand2)
case "*":
stack.append(operand1 * operand2)
case "/":
stack.append(operand1 / operand2)
default:
throw CalculateError.invalidInput
}
}
}
guard let result = stack.first, stack.count == 1 else {
throw CalculateError.invalidInput
}
return result
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isWhitespace {
continue
} else if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
output.append(lastOperator)
operators.removeLast()
}
operators.removeLast()
} else if isOperator(token) {
while let lastOperator = operators.last, isOperator(lastOperator), precedence(token) <= precedence(lastOperator) {
output.append(lastOperator)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let lastOperator = operators.last {
if lastOperator == "(" {
throw CalculateError.invalidInput
}
output.append(lastOperator)
operators.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = calculateOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operator: String) -> Int {
if `operator` == "+" || `operator` == "-" {
return 1
} else if `operator` == "*" || `operator` == "/" {
return 2
} else {
return 0
}
}
func calculateOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
return try evaluatePostfix(postfixTokens)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isWhitespace {
continue
} else if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operators: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operators.append(token)
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
output.append(lastOperator)
operators.removeLast()
}
operators.removeLast()
} else if isOperator(token) {
while let lastOperator = operators.last, isOperator(lastOperator), precedence(token) <= precedence(lastOperator) {
output.append(lastOperator)
operators.removeLast()
}
operators.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let lastOperator = operators.last {
if lastOperator == "(" {
throw CalculateError.invalidInput
}
output.append(lastOperator)
operators.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = calculateOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack[0]
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operator: String) -> Int {
if `operator` == "+" || `operator` == "-" {
return 1
} else if `operator` == "*" || `operator` == "/" {
return 2
} else {
return 0
}
}
func calculateOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixExpression = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixExpression)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixExpression: [String] = []
var operatorStack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
postfixExpression.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let op = operatorStack.last, op != "(" {
postfixExpression.append(op)
operatorStack.removeLast()
}
operatorStack.removeLast()
} else if precedence.keys.contains(token) {
while let op = operatorStack.last, precedence[op] ?? 0 >= precedence[token] ?? 0 {
postfixExpression.append(op)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operatorStack.last {
if op == "(" {
throw CalculateError.invalidInput
}
postfixExpression.append(op)
operatorStack.removeLast()
}
return postfixExpression
}
func evaluatePostfix(_ postfixExpression: [String]) throws -> Double {
var stack: [Double] = []
for token in postfixExpression {
if let number = Double(token) {
stack.append(number)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixExpression = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixExpression)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixExpression: [String] = []
var operatorStack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
postfixExpression.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let op = operatorStack.last, op != "(" {
postfixExpression.append(op)
operatorStack.removeLast()
}
operatorStack.removeLast()
} else if precedence.keys.contains(token) {
while let op = operatorStack.last, precedence[op] ?? 0 >= precedence[token] ?? 0 {
postfixExpression.append(op)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operatorStack.last {
if op == "(" {
throw CalculateError.invalidInput
}
postfixExpression.append(op)
operatorStack.removeLast()
}
return postfixExpression
}
func evaluatePostfix(_ postfixExpression: [String]) throws -> Double {
var stack: [Double] = []
for token in postfixExpression {
if let number = Double(token) {
stack.append(number)
} else {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
```let operand1 = stack.removeLast // type of expression is ambiguous without a type annotationenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = toPostfix(tokens)
return try evaluatePostfix(postfix)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isWhitespace {
continue
} else if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func toPostfix(_ tokens: [String]) -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
postfix.append(String(number))
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
stack.removeLast()
} else {
while let top = stack.last, precedence[top, default: 0] >= precedence[token, default: 0] {
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 operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
guard operand2 != 0 else {
throw CalculateError.invalidInput
}
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = toPostfix(tokens)
return try evaluatePostfix(postfix)
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isWhitespace {
continue
} else if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func toPostfix(_ tokens: [String]) -> [String] {
var postfix: [String] = []
var stack: [String] = []
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for token in tokens {
if let number = Double(token) {
postfix.append(String(number))
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(stack.removeLast())
}
stack.removeLast()
} else {
while let top = stack.last, precedence[top, default: 0] >= precedence[token, default: 0] {
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 operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
guard operand2 != 0 else {
throw CalculateError.invalidInput
}
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
```while let top = stack.last { // value 'top' was defined but never used; consider replacing with boolean testenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let top = operatorStack.last, top != "(" {
postfixTokens.append(top)
operatorStack.removeLast()
}
if operatorStack.isEmpty {
throw CalculateError.invalidInput
}
operatorStack.removeLast()
} else if isOperator(token) {
while let top = operatorStack.last, isOperator(top), precedence(token) <= precedence(top) {
postfixTokens.append(top)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = operatorStack.last {
if top == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(top)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.first!
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ token: String) -> Int {
if token == "+" || token == "-" {
return 1
} else if token == "*" || token == "/" {
return 2
}
return 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let top = operatorStack.last, top != "(" {
postfixTokens.append(top)
operatorStack.removeLast()
}
if operatorStack.isEmpty {
throw CalculateError.invalidInput
}
operatorStack.removeLast()
} else if isOperator(token) {
while let top = operatorStack.last, isOperator(top), precedence(token) <= precedence(top) {
postfixTokens.append(top)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let top = operatorStack.last {
if top == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(top)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.first!
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ token: String) -> Int {
if token == "+" || token == "-" {
return 1
} else if token == "*" || token == "/" {
return 2
}
return 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if char.isNumber || char == "." {
currentToken.append(char)
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let op = operatorStack.last, op != "(" {
output.append(op)
operatorStack.removeLast()
}
if operatorStack.isEmpty {
throw CalculateError.invalidInput
}
operatorStack.removeLast()
} else if isOperator(token) {
while let op = operatorStack.last, isOperator(op), precedence(op) >= precedence(token) {
output.append(op)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operatorStack.last {
if op == "(" {
throw CalculateError.invalidInput
}
output.append(op)
operatorStack.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = calculateOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.first!
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operatorToken: String) -> Int {
switch operatorToken {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
func calculateOperation(_ operatorToken: String, _ operand1: Double, _ operand2: Double) -> Double {
switch operatorToken {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if char.isNumber || char == "." {
currentToken.append(char)
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var output: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
output.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let op = operatorStack.last, op != "(" {
output.append(op)
operatorStack.removeLast()
}
if operatorStack.isEmpty {
throw CalculateError.invalidInput
}
operatorStack.removeLast()
} else if isOperator(token) {
while let op = operatorStack.last, isOperator(op), precedence(op) >= precedence(token) {
output.append(op)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operatorStack.last {
if op == "(" {
throw CalculateError.invalidInput
}
output.append(op)
operatorStack.removeLast()
}
return output
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = calculateOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.first!
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operatorToken: String) -> Int {
switch operatorToken {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
func calculateOperation(_ operatorToken: String, _ operand1: Double, _ operand2: Double) -> Double {
switch operatorToken {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var tokens = [String]()
var currentNumber = ""
for char in string {
if char.isWhitespace {
continue
}
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
let result = try evaluateExpression(tokens)
return result
}
func evaluateExpression(_ tokens: [String]) throws -> Double {
var stack = [Double]()
var index = 0
while index < tokens.count {
let token = tokens[index]
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
var subExpressionTokens = [String]()
var openParenthesesCount = 1
index += 1
while index < tokens.count {
let subToken = tokens[index]
if subToken == "(" {
openParenthesesCount += 1
} else if subToken == ")" {
openParenthesesCount -= 1
if openParenthesesCount == 0 {
break
}
}
subExpressionTokens.append(subToken)
index += 1
}
let subExpressionResult = try evaluateExpression(subExpressionTokens)
stack.append(subExpressionResult)
} else if token == "+" || token == "-" || token == "*" || token == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
} else {
throw CalculateError.invalidInput
}
index += 1
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack[0]
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var tokens = [String]()
var currentNumber = ""
for char in string {
if char.isWhitespace {
continue
}
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
let result = try evaluateExpression(tokens)
return result
}
func evaluateExpression(_ tokens: [String]) throws -> Double {
var stack = [Double]()
var index = 0
while index < tokens.count {
let token = tokens[index]
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
var subExpressionTokens = [String]()
var openParenthesesCount = 1
index += 1
while index < tokens.count {
let subToken = tokens[index]
if subToken == "(" {
openParenthesesCount += 1
} else if subToken == ")" {
openParenthesesCount -= 1
if openParenthesesCount == 0 {
break
}
}
subExpressionTokens.append(subToken)
index += 1
}
let subExpressionResult = try evaluateExpression(subExpressionTokens)
stack.append(subExpressionResult)
} else if token == "+" || token == "-" || token == "*" || token == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
} else {
throw CalculateError.invalidInput
}
index += 1
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack[0]
}
``` // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var tokens = [String]()
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
func precedence(_ op: String) -> Int {
if op == "+" || op == "-" {
return 1
} else if op == "*" || op == "/" {
return 2
}
return 0
}
func applyOp(_ op: String, _ num1: Double, _ num2: Double) -> Double {
switch op {
case "+":
return num1 + num2
case "-":
return num1 - num2
case "*":
return num1 * num2
case "/":
return num1 / num2
default:
return 0
}
}
var numStack = [Double]()
var opStack = [String]()
for token in tokens {
if let num = Double(token) {
numStack.append(num)
} else if token == "(" {
opStack.append(token)
} else if token == ")" {
while !opStack.isEmpty && opStack.last != "(" {
let op = opStack.removeLast()
let num2 = numStack.removeLast()
let num1 = numStack.removeLast()
numStack.append(applyOp(op, num1, num2))
}
opStack.removeLast()
} else {
while !opStack.isEmpty && precedence(opStack.last!) >= precedence(token) {
let op = opStack.removeLast()
let num2 = numStack.removeLast()
let num1 = numStack.removeLast()
numStack.append(applyOp(op, num1, num2))
}
opStack.append(token)
}
}
while !opStack.isEmpty {
let op = opStack.removeLast()
let num2 = numStack.removeLast()
let num1 = numStack.removeLast()
numStack.append(applyOp(op, num1, num2))
}
if numStack.count == 1 {
return numStack.first!
} else {
throw CalculateError.invalidInput
}
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var tokens = [String]()
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
func precedence(_ op: String) -> Int {
if op == "+" || op == "-" {
return 1
} else if op == "*" || op == "/" {
return 2
}
return 0
}
func applyOp(_ op: String, _ num1: Double, _ num2: Double) -> Double {
switch op {
case "+":
return num1 + num2
case "-":
return num1 - num2
case "*":
return num1 * num2
case "/":
return num1 / num2
default:
return 0
}
}
var numStack = [Double]()
var opStack = [String]()
for token in tokens {
if let num = Double(token) {
numStack.append(num)
} else if token == "(" {
opStack.append(token)
} else if token == ")" {
while !opStack.isEmpty && opStack.last != "(" {
let op = opStack.removeLast()
let num2 = numStack.removeLast()
let num1 = numStack.removeLast()
numStack.append(applyOp(op, num1, num2))
}
opStack.removeLast()
} else {
while !opStack.isEmpty && precedence(opStack.last!) >= precedence(token) {
let op = opStack.removeLast()
let num2 = numStack.removeLast()
let num1 = numStack.removeLast()
numStack.append(applyOp(op, num1, num2))
}
opStack.append(token)
}
}
while !opStack.isEmpty {
let op = opStack.removeLast()
let num2 = numStack.removeLast()
let num1 = numStack.removeLast()
numStack.append(applyOp(op, num1, num2))
}
if numStack.count == 1 {
return numStack.first!
} else {
throw CalculateError.invalidInput
}
}
``` // Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = convertToPostfix(tokens)
let result = evaluatePostfix(postfix)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) -> [String] {
var postfix: [String] = []
var stack: [String] = []
for token in tokens {
if let number = Double(token) {
postfix.append(String(number))
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(top)
stack.removeLast()
}
stack.removeLast()
} else {
while let top = stack.last, isHigherPrecedence(top, token) {
postfix.append(top)
stack.removeLast()
}
stack.append(token)
}
}
while let top = stack.last {
postfix.append(top)
stack.removeLast()
}
return postfix
}
func isHigherPrecedence(_ op1: String, _ op2: String) -> Bool {
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
return precedence[op1, default: 0] >= precedence[op2, default: 0]
}
func evaluatePostfix(_ postfix: [String]) -> Double {
var stack: [Double] = []
for token in postfix {
if let number = Double(token) {
stack.append(number)
} else {
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result = performOperation(token, operand1, operand2)
stack.append(result)
}
}
return stack.first ?? 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfix = convertToPostfix(tokens)
let result = evaluatePostfix(postfix)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) -> [String] {
var postfix: [String] = []
var stack: [String] = []
for token in tokens {
if let number = Double(token) {
postfix.append(String(number))
} else if token == "(" {
stack.append(token)
} else if token == ")" {
while let top = stack.last, top != "(" {
postfix.append(top)
stack.removeLast()
}
stack.removeLast()
} else {
while let top = stack.last, isHigherPrecedence(top, token) {
postfix.append(top)
stack.removeLast()
}
stack.append(token)
}
}
while let top = stack.last {
postfix.append(top)
stack.removeLast()
}
return postfix
}
func isHigherPrecedence(_ op1: String, _ op2: String) -> Bool {
let precedence: [String: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
return precedence[op1, default: 0] >= precedence[op2, default: 0]
}
func evaluatePostfix(_ postfix: [String]) -> Double {
var stack: [Double] = []
for token in postfix {
if let number = Double(token) {
stack.append(number)
} else {
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result = performOperation(token, operand1, operand2)
stack.append(result)
}
}
return stack.first ?? 0
}
func performOperation(_ operator: String, _ operand1: Double, _ operand2: Double) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
``` // Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if char.isNumber || char == "." {
currentToken.append(char)
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let op = operatorStack.last, op != "(" {
postfixTokens.append(op)
operatorStack.removeLast()
}
if operatorStack.isEmpty {
throw CalculateError.invalidInput
}
operatorStack.removeLast()
} else if isOperator(token) {
while let op = operatorStack.last, isOperator(op), precedence(op) >= precedence(token) {
postfixTokens.append(op)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operatorStack.last {
if op == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(op)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token) {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result = calculate(operand1, operand2, token)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ token: String) -> Int {
if token == "+" || token == "-" {
return 1
} else if token == "*" || token == "/" {
return 2
}
return 0
}
func calculate(_ operand1: Double, _ operand2: Double, _ operator: String) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if char.isNumber || char == "." {
currentToken.append(char)
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let op = operatorStack.last, op != "(" {
postfixTokens.append(op)
operatorStack.removeLast()
}
if operatorStack.isEmpty {
throw CalculateError.invalidInput
}
operatorStack.removeLast()
} else if isOperator(token) {
while let op = operatorStack.last, isOperator(op), precedence(op) >= precedence(token) {
postfixTokens.append(op)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operatorStack.last {
if op == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(op)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token) {
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let operand2 = stack.removeLast()
let operand1 = stack.removeLast()
let result = calculate(operand1, operand2, token)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ token: String) -> Int {
if token == "+" || token == "-" {
return 1
} else if token == "*" || token == "/" {
return 2
}
return 0
}
func calculate(_ operand1: Double, _ operand2: Double, _ operator: String) -> Double {
switch `operator` {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let expression = string.replacingOccurrences(of: " ", with: "")
guard isValidExpression(expression) else {
throw CalculateError.invalidInput
}
let expressionWithoutParentheses = evaluateParentheses(expression)
return evaluateExpression(expressionWithoutParentheses)
}
func isValidExpression(_ expression: String) -> Bool {
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789")
return expression.rangeOfCharacter(from: validCharacters.inverted) == nil
}
func evaluateParentheses(_ expression: String) -> String {
var expression = expression
while let openParenIndex = expression.firstIndex(of: "(") {
var closeParenIndex = expression.index(after: openParenIndex)
var openParenCount = 1
for (index, char) in expression.enumerated() {
if index > openParenIndex.utf16Offset(in: expression) {
if char == "(" {
openParenCount += 1
} else if char == ")" {
openParenCount -= 1
if openParenCount == 0 {
closeParenIndex = expression.index(expression.startIndex, offsetBy: index)
break
}
}
}
}
let startIndex = expression.index(after: openParenIndex)
let endIndex = closeParenIndex
let subExpression = String(expression[startIndex..<endIndex])
let result = evaluateExpression(subExpression)
expression.replaceSubrange(openParenIndex...closeParenIndex, with: String(result))
}
return expression
}
func evaluateExpression(_ expression: String) -> Double {
let operators: [Character] = ["+", "-", "*", "/"]
var numbers: [Double] = []
var ops: [Character] = []
var numString = ""
for char in expression {
if operators.contains(char) {
if let num = Double(numString) {
numbers.append(num)
numString = ""
}
ops.append(char)
} else {
numString.append(char)
}
}
if let num = Double(numString) {
numbers.append(num)
}
while !ops.isEmpty {
if let index = ops.firstIndex(where: { $0 == "*" || $0 == "/" }) {
let op = ops.remove(at: index)
let num1 = numbers.remove(at: index)
let num2 = numbers.remove(at: index)
let result = op == "*" ? num1 * num2 : num1 / num2
numbers.insert(result, at: index)
} else {
let op = ops.removeFirst()
let num = numbers.removeFirst()
let nextNum = numbers.removeFirst()
let result = op == "+" ? num + nextNum : num - nextNum
numbers.insert(result, at: 0)
}
}
return numbers.first ?? 0
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let expression = string.replacingOccurrences(of: " ", with: "")
guard isValidExpression(expression) else {
throw CalculateError.invalidInput
}
let expressionWithoutParentheses = evaluateParentheses(expression)
return evaluateExpression(expressionWithoutParentheses)
}
func isValidExpression(_ expression: String) -> Bool {
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789")
return expression.rangeOfCharacter(from: validCharacters.inverted) == nil
}
func evaluateParentheses(_ expression: String) -> String {
var expression = expression
while let openParenIndex = expression.firstIndex(of: "(") {
var closeParenIndex = expression.index(after: openParenIndex)
var openParenCount = 1
for (index, char) in expression.enumerated() {
if index > openParenIndex.utf16Offset(in: expression) {
if char == "(" {
openParenCount += 1
} else if char == ")" {
openParenCount -= 1
if openParenCount == 0 {
closeParenIndex = expression.index(expression.startIndex, offsetBy: index)
break
}
}
}
}
let startIndex = expression.index(after: openParenIndex)
let endIndex = closeParenIndex
let subExpression = String(expression[startIndex..<endIndex])
let result = evaluateExpression(subExpression)
expression.replaceSubrange(openParenIndex...closeParenIndex, with: String(result))
}
return expression
}
func evaluateExpression(_ expression: String) -> Double {
let operators: [Character] = ["+", "-", "*", "/"]
var numbers: [Double] = []
var ops: [Character] = []
var numString = ""
for char in expression {
if operators.contains(char) {
if let num = Double(numString) {
numbers.append(num)
numString = ""
}
ops.append(char)
} else {
numString.append(char)
}
}
if let num = Double(numString) {
numbers.append(num)
}
while !ops.isEmpty {
if let index = ops.firstIndex(where: { $0 == "*" || $0 == "/" }) {
let op = ops.remove(at: index)
let num1 = numbers.remove(at: index)
let num2 = numbers.remove(at: index)
let result = op == "*" ? num1 * num2 : num1 / num2
numbers.insert(result, at: index)
} else {
let op = ops.removeFirst()
let num = numbers.removeFirst()
let nextNum = numbers.removeFirst()
let result = op == "+" ? num + nextNum : num - nextNum
numbers.insert(result, at: 0)
}
}
return numbers.first ?? 0
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let op = operatorStack.last, op != "(" {
postfixTokens.append(op)
operatorStack.removeLast()
}
operatorStack.removeLast()
} else if isOperator(token) {
while let op = operatorStack.last, isOperator(op), precedence(op) >= precedence(token) {
postfixTokens.append(op)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operatorStack.last {
if op == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(op)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack.first!
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operatorToken: String) -> Int {
switch operatorToken {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
func performOperation(_ operatorToken: String, _ operand1: Double, _ operand2: Double) -> Double {
switch operatorToken {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
let postfixTokens = try convertToPostfix(tokens)
let result = try evaluatePostfix(postfixTokens)
return result
}
func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
if char != " " {
tokens.append(String(char))
}
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
func convertToPostfix(_ tokens: [String]) throws -> [String] {
var postfixTokens: [String] = []
var operatorStack: [String] = []
for token in tokens {
if let number = Double(token) {
postfixTokens.append(String(number))
} else if token == "(" {
operatorStack.append(token)
} else if token == ")" {
while let op = operatorStack.last, op != "(" {
postfixTokens.append(op)
operatorStack.removeLast()
}
operatorStack.removeLast()
} else if isOperator(token) {
while let op = operatorStack.last, isOperator(op), precedence(op) >= precedence(token) {
postfixTokens.append(op)
operatorStack.removeLast()
}
operatorStack.append(token)
} else {
throw CalculateError.invalidInput
}
}
while let op = operatorStack.last {
if op == "(" {
throw CalculateError.invalidInput
}
postfixTokens.append(op)
operatorStack.removeLast()
}
return postfixTokens
}
func evaluatePostfix(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if isOperator(token), let operand2 = stack.popLast(), let operand1 = stack.popLast() {
let result = performOperation(token, operand1, operand2)
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
if stack.count == 1 {
return stack.first!
} else {
throw CalculateError.invalidInput
}
}
func isOperator(_ token: String) -> Bool {
return token == "+" || token == "-" || token == "*" || token == "/"
}
func precedence(_ operatorToken: String) -> Int {
switch operatorToken {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
func performOperation(_ operatorToken: String, _ operand1: Double, _ operand2: Double) -> Double {
switch operatorToken {
case "+":
return operand1 + operand2
case "-":
return operand1 - operand2
case "*":
return operand1 * operand2
case "/":
return operand1 / operand2
default:
return 0
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
do {
try task.run()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error)")
}
}```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
do {
try task.run()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error)")
}
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
do {
try task.run()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error)")
}
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
do {
try task.run()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error)")
}
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
}```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (stdout, stderr)
}```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (stdout, stderr)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeStdout = Pipe()
let pipeStderr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeStdout
task.standardError = pipeStderr
task.launch()
task.waitUntilExit()
let dataStdout = pipeStdout.fileHandleForReading.readDataToEndOfFile()
let dataStderr = pipeStderr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataStdout, encoding: .utf8) ?? ""
let stderr = String(data: dataStderr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeStdout = Pipe()
let pipeStderr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeStdout
task.standardError = pipeStderr
task.launch()
task.waitUntilExit()
let dataStdout = pipeStdout.fileHandleForReading.readDataToEndOfFile()
let dataStderr = pipeStderr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataStdout, encoding: .utf8) ?? ""
let stderr = String(data: dataStderr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: dataOut, encoding: .utf8) ?? ""
let stderr = String(data: dataErr, encoding: .utf8) ?? ""
return (stdout, stderr)
}
```import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, encoding: .utf8) ?? ""
return (output, error)
}```swift
import Foundation
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
let pipeOut = Pipe()
let pipeErr = Pipe()
task.launchPath = binary
task.arguments = arguments
task.standardOutput = pipeOut
task.standardError = pipeErr
task.launch()
task.waitUntilExit()
let dataOut = pipeOut.fileHandleForReading.readDataToEndOfFile()
let dataErr = pipeErr.fileHandleForReading.readDataToEndOfFile()
let output = String(data: dataOut, encoding: .utf8) ?? ""
let error = String(data: dataErr, 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
}
}
}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
}
}
}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
}
}
}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
}
}
}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
}
}
}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
}
}
}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 result = cache[input] {
return result
} 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 result = cache[input] {
return result
} 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
}
}
}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
}
}
}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
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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
}
}
}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
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}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 newResult = function(input)
cache[input] = newResult
return newResult
}
}
}func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let result = cache[input] {
return result
} 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 result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = result
return result
}
}
}func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 1
while currentAttempt <= attempts {
do {
return try task()
} catch {
if currentAttempt == attempts {
throw error
}
currentAttempt += 1
}
}
fatalError("Unexpected flow reached in retry function.")
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 1
while currentAttempt <= attempts {
do {
return try task()
} catch {
if currentAttempt == attempts {
throw error
}
currentAttempt += 1
}
}
fatalError("Unexpected flow reached in retry function.")
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
if currentAttempt == attempts {
throw error
}
}
}
fatalError("Unexpected code path reached.")
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
if currentAttempt == attempts {
throw error
}
}
}
fatalError("Unexpected code path reached.")
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}```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 ?? RetryError.tooManyAttempts
}
enum RetryError: Error {
case tooManyAttempts
}
```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!
}```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!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
if currentAttempt == attempts {
throw error
}
}
}
fatalError("Unexpected code path reached.")
}```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
if currentAttempt == attempts {
throw error
}
}
}
fatalError("Unexpected code path reached.")
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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 = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
if let factory = factories[key] {
return factory() as? T
}
return nil
}
}```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)
if let factory = factories[key] {
return factory() as? T
}
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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(type)
guard let factory = factories[key] else {
return nil
}
return factory() 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 = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
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 = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
guard let factory = factories[key] else {
return nil
}
return factory() 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 = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
guard let factory = factories[key] else {
return nil
}
return factory() 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 = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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 = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
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)
if let factory = factories[key] {
return factory() as? T
}
return nil
}
}```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)
if let factory = factories[key] {
return factory() as? T
}
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 = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
return nil
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(T.self)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(T.self)
if let factory = factories[key] {
return factory() as? T
}
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)
guard let factory = factories[key] else {
return nil
}
return factory() 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)
guard let factory = factories[key] else {
return nil
}
return factory() 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 = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}```swift
class DIContainer: DIContainerProtocol {
private var factories = [ObjectIdentifier: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = ObjectIdentifier(type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = ObjectIdentifier(type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}
```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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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, 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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
currentState = nextState
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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, 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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
currentState = nextState
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
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, 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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
currentState = nextState
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
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) {
guard let possibleTransitions = transitions[currentState],
let nextState = possibleTransitions[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(nextState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(nextState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("Invalid transition for event \(event) from state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("Invalid transition for event \(event) from state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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, 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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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, 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) {
guard let nextState = transitions[currentState]?[event] else {
print("Invalid transition for event: \(event) in state: \(currentState)")
return
}
currentState = nextState
print("Transitioned to state: \(currentState) after event: \(event)")
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("Invalid transition for event: \(event) in state: \(currentState)")
return
}
currentState = nextState
print("Transitioned to state: \(currentState) after event: \(event)")
}
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, 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) {
guard let nextState = transitions[currentState]?[event] else {
print("Invalid transition for event: \(event) in state: \(currentState)")
return
}
currentState = nextState
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("Invalid transition for event: \(event) in state: \(currentState)")
return
}
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, 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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
currentState = nextState
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
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) {
guard let nextState = transitions[currentState]?[event] else {
return
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
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) {
guard let nextState = transitions[currentState]?[event] else {
print("No transition found for event \(event) in state \(currentState)")
return
}
currentState = nextState
print("Transitioned to state \(currentState) after event \(event)")
}
func registerTransition(from: State, to: State, event: Event) {
if transitions[from] == nil {
transitions[from] = [:]
}
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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
let childDepths = contents.map { $0.treeDepth }
return 1 + (childDepths.max() ?? 0)
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
let childDepths = contents.map { $0.treeDepth }
return 1 + (childDepths.max() ?? 0)
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
let childDepths = contents.map { $0.treeDepth }
return 1 + childDepths.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
let childDepths = contents.map { $0.treeDepth }
return 1 + childDepths.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
let childDepths = contents.map { $0.treeDepth }
return 1 + childDepths.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
let childDepths = contents.map { $0.treeDepth }
return 1 + childDepths.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
let childDepths = contents.map { $0.treeDepth }
return 1 + childDepths.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
let childDepths = contents.map { $0.treeDepth }
return 1 + childDepths.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}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):
if contents.isEmpty {
return 1
} else {
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
}
```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 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] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}```swift
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'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 var capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
}
}
}
}
private func updateOrderOfAccess(_ key: Key) {
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
orderOfAccess.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
}
}
}
}
private func updateOrderOfAccess(_ key: Key) {
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
orderOfAccess.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count == capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess = orderOfAccess.filter { $0 != key }
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess = orderOfAccess.filter { $0 != key }
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count == capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess = orderOfAccess.filter { $0 != key }
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess = orderOfAccess.filter { $0 != key }
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
} else {
return nil
}
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count == capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
}
}
}
}
private func updateOrderOfAccess(_ key: Key) {
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
orderOfAccess.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
} else {
return nil
}
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count == capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
}
}
}
}
private func updateOrderOfAccess(_ key: Key) {
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
orderOfAccess.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache.keys.contains(key) {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess.removeAll { $0 == key }
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess.removeAll { $0 == key }
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let key = orderOfAccess.first {
cache[key] = nil
orderOfAccess.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache.keys.contains(key) {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess.removeAll { $0 == key }
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess.removeAll { $0 == key }
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let key = orderOfAccess.first {
cache[key] = nil
orderOfAccess.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache.keys.contains(key) {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess = orderOfAccess.filter { $0 != key }
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess = orderOfAccess.filter { $0 != key }
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache.keys.contains(key) {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess = orderOfAccess.filter { $0 != key }
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess = orderOfAccess.filter { $0 != key }
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count == capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
}
}
}
}
private func updateOrderOfAccess(_ key: Key) {
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
orderOfAccess.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count == capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
}
}
}
}
private func updateOrderOfAccess(_ key: Key) {
if let index = orderOfAccess.firstIndex(of: key) {
orderOfAccess.remove(at: index)
orderOfAccess.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Update order of keys based on recent access
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.insert(key, at: 0)
}
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
// Update order of keys based on recent access
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.insert(key, at: 0)
if cache.count >= capacity {
if let keyToRemove = order.last {
cache.removeValue(forKey: keyToRemove)
order.removeLast()
}
}
cache[key] = value
} else {
cache.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Update order of keys based on recent access
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.insert(key, at: 0)
}
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
// Update order of keys based on recent access
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.insert(key, at: 0)
if cache.count >= capacity {
if let keyToRemove = order.last {
cache.removeValue(forKey: keyToRemove)
order.removeLast()
}
}
cache[key] = value
} else {
cache.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 var capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfKeys: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Move the key to the end of the orderOfKeys array
if let index = orderOfKeys.firstIndex(of: key) {
orderOfKeys.remove(at: index)
orderOfKeys.append(key)
}
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if let existingValue = cache[key] {
// Update existing key
cache[key] = value
if let index = orderOfKeys.firstIndex(of: key) {
orderOfKeys.remove(at: index)
orderOfKeys.append(key)
}
} else {
// Add new key
if cache.count >= capacity {
if let keyToRemove = orderOfKeys.first {
cache.removeValue(forKey: keyToRemove)
orderOfKeys.removeFirst()
}
}
cache[key] = value
orderOfKeys.append(key)
}
} else {
// Remove key
cache.removeValue(forKey: key)
if let index = orderOfKeys.firstIndex(of: key) {
orderOfKeys.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfKeys: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Move the key to the end of the orderOfKeys array
if let index = orderOfKeys.firstIndex(of: key) {
orderOfKeys.remove(at: index)
orderOfKeys.append(key)
}
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if let existingValue = cache[key] {
// Update existing key
cache[key] = value
if let index = orderOfKeys.firstIndex(of: key) {
orderOfKeys.remove(at: index)
orderOfKeys.append(key)
}
} else {
// Add new key
if cache.count >= capacity {
if let keyToRemove = orderOfKeys.first {
cache.removeValue(forKey: keyToRemove)
orderOfKeys.removeFirst()
}
}
cache[key] = value
orderOfKeys.append(key)
}
} else {
// Remove key
cache.removeValue(forKey: key)
if let index = orderOfKeys.firstIndex(of: key) {
orderOfKeys.remove(at: index)
}
}
}
}
}
```if let existingValue = cache[key] { // value 'existingValue' was defined but never used; consider replacing with boolean testprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess = orderOfAccess.filter { $0 != key }
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess = orderOfAccess.filter { $0 != key }
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess = orderOfAccess.filter { $0 != key }
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess = orderOfAccess.filter { $0 != key }
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache.keys.contains(key) {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count == capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess.removeAll(where: { $0 == key })
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess.removeAll(where: { $0 == key })
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var orderOfAccess: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrderOfAccess(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache.keys.contains(key) {
cache[key] = value
updateOrderOfAccess(key)
} else {
if cache.count == capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
orderOfAccess.append(key)
}
} else {
cache[key] = nil
orderOfAccess.removeAll(where: { $0 == key })
}
}
}
private func updateOrderOfAccess(_ key: Key) {
orderOfAccess.removeAll(where: { $0 == key })
orderOfAccess.append(key)
}
private func evictLeastRecentlyUsed() {
if let keyToRemove = orderOfAccess.first {
cache[keyToRemove] = nil
orderOfAccess.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Move the key to the end of the order array
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if let existingValue = cache[key] {
// Update existing key
cache[key] = value
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
// Add new key
if cache.count >= capacity {
if let keyToRemove = order.first {
cache.removeValue(forKey: keyToRemove)
order.removeFirst()
}
}
cache[key] = value
order.append(key)
}
} else {
// Remove key
cache.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Move the key to the end of the order array
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
if let existingValue = cache[key] {
// Update existing key
cache[key] = value
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
// Add new key
if cache.count >= capacity {
if let keyToRemove = order.first {
cache.removeValue(forKey: keyToRemove)
order.removeFirst()
}
}
cache[key] = value
order.append(key)
}
} else {
// Remove key
cache.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}
```if let existingValue = cache[key] { // value 'existingValue' was defined but never used; consider replacing with boolean testprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var accessOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateAccessOrder(key)
return value
} else {
return nil
}
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateAccessOrder(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
accessOrder.append(key)
}
} else {
cache[key] = nil
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
}
}
}
}
private func updateAccessOrder(_ key: Key) {
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
accessOrder.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let key = accessOrder.first {
cache[key] = nil
accessOrder.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var accessOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateAccessOrder(key)
return value
} else {
return nil
}
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateAccessOrder(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
accessOrder.append(key)
}
} else {
cache[key] = nil
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
}
}
}
}
private func updateAccessOrder(_ key: Key) {
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
accessOrder.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let key = accessOrder.first {
cache[key] = nil
accessOrder.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var accessOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateAccessOrder(for: key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateAccessOrder(for: key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
accessOrder.append(key)
}
} else {
cache[key] = nil
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
}
}
}
}
private func updateAccessOrder(for key: Key) {
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
accessOrder.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let key = accessOrder.first {
cache[key] = nil
accessOrder.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var accessOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateAccessOrder(for: key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateAccessOrder(for: key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
accessOrder.append(key)
}
} else {
cache[key] = nil
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
}
}
}
}
private func updateAccessOrder(for key: Key) {
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
accessOrder.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let key = accessOrder.first {
cache[key] = nil
accessOrder.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var keyOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Move the key to the end of the key order
if let index = keyOrder.firstIndex(of: key) {
keyOrder.remove(at: index)
keyOrder.append(key)
}
return value
} else {
return nil
}
}
set {
if let value = newValue {
if let _ = cache[key] {
// Move the key to the end of the key order
if let index = keyOrder.firstIndex(of: key) {
keyOrder.remove(at: index)
keyOrder.append(key)
}
cache[key] = value
} else {
if cache.count == capacity {
if let keyToRemove = keyOrder.first {
cache.removeValue(forKey: keyToRemove)
keyOrder.removeFirst()
}
}
cache[key] = value
keyOrder.append(key)
}
} else {
cache.removeValue(forKey: key)
if let index = keyOrder.firstIndex(of: key) {
keyOrder.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var keyOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Move the key to the end of the key order
if let index = keyOrder.firstIndex(of: key) {
keyOrder.remove(at: index)
keyOrder.append(key)
}
return value
} else {
return nil
}
}
set {
if let value = newValue {
if let _ = cache[key] {
// Move the key to the end of the key order
if let index = keyOrder.firstIndex(of: key) {
keyOrder.remove(at: index)
keyOrder.append(key)
}
cache[key] = value
} else {
if cache.count == capacity {
if let keyToRemove = keyOrder.first {
cache.removeValue(forKey: keyToRemove)
keyOrder.removeFirst()
}
}
cache[key] = value
keyOrder.append(key)
}
} else {
cache.removeValue(forKey: key)
if let index = keyOrder.firstIndex(of: key) {
keyOrder.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 var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrder(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrder(key)
} else {
if cache.count == capacity {
evictLRU()
}
cache[key] = value
order.append(key)
}
} else {
cache[key] = nil
order.removeAll { $0 == key }
}
}
}
private func updateOrder(_ key: Key) {
order.removeAll { $0 == key }
order.append(key)
}
private func evictLRU() {
if let key = order.first {
cache[key] = nil
order.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateOrder(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateOrder(key)
} else {
if cache.count == capacity {
evictLRU()
}
cache[key] = value
order.append(key)
}
} else {
cache[key] = nil
order.removeAll { $0 == key }
}
}
}
private func updateOrder(_ key: Key) {
order.removeAll { $0 == key }
order.append(key)
}
private func evictLRU() {
if let key = order.first {
cache[key] = nil
order.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Update order of keys based on recent access
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.insert(key, at: 0)
}
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
// Update order of keys based on recent access
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.insert(key, at: 0)
// Evict least recently used item if capacity is reached
if cache.count >= capacity {
if let keyToRemove = order.last {
cache.removeValue(forKey: keyToRemove)
order.removeLast()
}
}
cache[key] = value
} else {
// Remove item if setting nil
cache.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Update order of keys based on recent access
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.insert(key, at: 0)
}
return value
} else {
return nil
}
}
set(newValue) {
if let value = newValue {
// Update order of keys based on recent access
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.insert(key, at: 0)
// Evict least recently used item if capacity is reached
if cache.count >= capacity {
if let keyToRemove = order.last {
cache.removeValue(forKey: keyToRemove)
order.removeLast()
}
}
cache[key] = value
} else {
// Remove item if setting nil
cache.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 var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Move the key to the end of the order
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
return value
}
return nil
}
set {
if let value = newValue {
if let _ = cache[key] {
// Move the key to the end of the order
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
cache[key] = value
} else {
if cache.count == capacity {
if let keyToRemove = order.first {
cache.removeValue(forKey: keyToRemove)
order.removeFirst()
}
}
cache[key] = value
order.append(key)
}
} else {
cache.removeValue(forKey: key)
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
}
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var order: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
// Move the key to the end of the order
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
return value
}
return nil
}
set {
if let value = newValue {
if let _ = cache[key] {
// Move the key to the end of the order
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
cache[key] = value
} else {
if cache.count == capacity {
if let keyToRemove = order.first {
cache.removeValue(forKey: keyToRemove)
order.removeFirst()
}
}
cache[key] = value
order.append(key)
}
} else {
cache.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 var capacity: Int
private var cache: [Key: Element] = [:]
private var accessOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateAccessOrder(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateAccessOrder(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
accessOrder.append(key)
}
} else {
cache.removeValue(forKey: key)
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
}
}
}
}
private func updateAccessOrder(_ key: Key) {
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
accessOrder.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let key = accessOrder.first {
cache.removeValue(forKey: key)
accessOrder.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var accessOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateAccessOrder(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] != nil {
cache[key] = value
updateAccessOrder(key)
} else {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
accessOrder.append(key)
}
} else {
cache.removeValue(forKey: key)
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
}
}
}
}
private func updateAccessOrder(_ key: Key) {
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
accessOrder.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let key = accessOrder.first {
cache.removeValue(forKey: key)
accessOrder.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var accessOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateAccessOrder(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] == nil {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
accessOrder.append(key)
} else {
cache[key] = value
updateAccessOrder(key)
}
} else {
cache[key] = nil
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
}
}
}
}
private func updateAccessOrder(_ key: Key) {
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
accessOrder.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let key = accessOrder.first {
cache[key] = nil
accessOrder.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var accessOrder: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = cache[key] {
updateAccessOrder(key)
return value
}
return nil
}
set {
if let value = newValue {
if cache[key] == nil {
if cache.count >= capacity {
evictLeastRecentlyUsed()
}
cache[key] = value
accessOrder.append(key)
} else {
cache[key] = value
updateAccessOrder(key)
}
} else {
cache[key] = nil
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
}
}
}
}
private func updateAccessOrder(_ key: Key) {
if let index = accessOrder.firstIndex(of: key) {
accessOrder.remove(at: index)
accessOrder.append(key)
}
}
private func evictLeastRecentlyUsed() {
if let key = accessOrder.first {
cache[key] = nil
accessOrder.removeFirst()
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var keysQueue: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
return getValue(forKey: key)
}
set {
if let value = newValue {
setValue(value, forKey: key)
} else {
removeValue(forKey: key)
}
}
}
private func getValue(forKey key: Key) -> Element? {
if let value = cache[key] {
updateKeyQueue(key)
return value
}
return nil
}
private func setValue(_ value: Element, forKey key: Key) {
if cache.keys.contains(key) {
cache[key] = value
updateKeyQueue(key)
} else {
if cache.count == capacity {
evictLRU()
}
cache[key] = value
keysQueue.append(key)
}
}
private func removeValue(forKey key: Key) {
cache.removeValue(forKey: key)
keysQueue.removeAll { $0 == key }
}
private func updateKeyQueue(_ key: Key) {
keysQueue.removeAll { $0 == key }
keysQueue.append(key)
}
private func evictLRU() {
if let lruKey = keysQueue.first {
cache.removeValue(forKey: lruKey)
keysQueue.removeFirst()
}
}
}```swift
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var keysQueue: [Key] = []
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
return getValue(forKey: key)
}
set {
if let value = newValue {
setValue(value, forKey: key)
} else {
removeValue(forKey: key)
}
}
}
private func getValue(forKey key: Key) -> Element? {
if let value = cache[key] {
updateKeyQueue(key)
return value
}
return nil
}
private func setValue(_ value: Element, forKey key: Key) {
if cache.keys.contains(key) {
cache[key] = value
updateKeyQueue(key)
} else {
if cache.count == capacity {
evictLRU()
}
cache[key] = value
keysQueue.append(key)
}
}
private func removeValue(forKey key: Key) {
cache.removeValue(forKey: key)
keysQueue.removeAll { $0 == key }
}
private func updateKeyQueue(_ key: Key) {
keysQueue.removeAll { $0 == key }
keysQueue.append(key)
}
private func evictLRU() {
if let lruKey = keysQueue.first {
cache.removeValue(forKey: lruKey)
keysQueue.removeFirst()
}
}
}
```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 var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```return get(key) // missing argument label 'key:' in callThread.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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```return get(key) // missing argument label 'key:' in callThread.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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```return get(key) // missing argument label 'key:' in callThread.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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```return get(key) // missing argument label 'key:' in callThread.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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value: value, expiration: expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value: value, expiration: expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationTime = Date().addingTimeInterval(expiration).timeIntervalSince1970
cache[key] = (value, expirationTime)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if Date().timeIntervalSince1970 < cachedValue.expiration {
return cachedValue.value
} else {
cache.removeValue(forKey: key)
return nil
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationTime = Date().addingTimeInterval(expiration).timeIntervalSince1970
cache[key] = (value, expirationTime)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if Date().timeIntervalSince1970 < cachedValue.expiration {
return cachedValue.value
} else {
cache.removeValue(forKey: key)
return nil
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache[key] = nil
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache[key] = nil
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache[key] = nil
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache[key] = nil
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache[key] = nil
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 0)
} else {
cache[key] = nil
}
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache[key] = nil
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 0)
} else {
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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache[key] = nil
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache[key] = nil
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache[key] = nil
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache[key] = nil
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```return get(key) // missing argument label 'key:' in callThread.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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let value = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: value, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let value = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: value, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], cachedValue.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}```swift
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key] else {
return nil
}
if cachedValue.expiration < Date() {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
put(value: newValue, key: key, expiration: 0)
}
}
}
```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
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let stringData = string.data(using: .utf8)!
let stringCount = stringData.count
var encryptedData = Data()
for i in 0..<stringCount {
let keyByte = keyData[i % keyCount]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let dataCount = data.count
var decryptedString = ""
for i in 0..<dataCount {
let keyByte = keyData[i % keyCount]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let stringData = string.data(using: .utf8)!
let stringCount = stringData.count
var encryptedData = Data()
for i in 0..<stringCount {
let keyByte = keyData[i % keyCount]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let dataCount = data.count
var decryptedString = ""
for i in 0..<dataCount {
let keyByte = keyData[i % keyCount]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let keyBytes = [UInt8](keyData)
let encryptedBytes = string.utf8.enumerated().map { index, char in
return char ^ keyBytes[index % keyCount]
}
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let keyBytes = [UInt8](keyData)
let decryptedBytes = [UInt8](data).enumerated().map { index, byte in
return byte ^ keyBytes[index % keyCount]
}
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let keyBytes = [UInt8](keyData)
let encryptedBytes = string.utf8.enumerated().map { index, char in
return char ^ keyBytes[index % keyCount]
}
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let keyBytes = [UInt8](keyData)
let decryptedBytes = [UInt8](data).enumerated().map { index, byte in
return byte ^ keyBytes[index % keyCount]
}
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let stringData = string.data(using: .utf8)!
let stringCount = stringData.count
var encryptedData = Data()
for i in 0..<stringCount {
let keyIndex = i % keyCount
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let dataCount = data.count
var decryptedString = ""
for i in 0..<dataCount {
let keyIndex = i % keyCount
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let stringData = string.data(using: .utf8)!
let stringCount = stringData.count
var encryptedData = Data()
for i in 0..<stringCount {
let keyIndex = i % keyCount
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let dataCount = data.count
var decryptedString = ""
for i in 0..<dataCount {
let keyIndex = i % keyCount
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let stringData = string.data(using: .utf8)!
let stringCount = stringData.count
var encryptedData = Data()
for i in 0..<stringCount {
let keyIndex = i % keyCount
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let dataCount = data.count
var decryptedString = ""
for i in 0..<dataCount {
let keyIndex = i % keyCount
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let stringData = string.data(using: .utf8)!
let stringCount = stringData.count
var encryptedData = Data()
for i in 0..<stringCount {
let keyIndex = i % keyCount
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let dataCount = data.count
var decryptedString = ""
for i in 0..<dataCount {
let keyIndex = i % keyCount
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let encryptedByte = data[i]
let decryptedByte = keyByte ^ encryptedByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let keyBytes = [UInt8](keyData)
let encryptedBytes = string.utf8.enumerated().map { index, char in
return char ^ keyBytes[index % keyLength]
}
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let keyBytes = [UInt8](keyData)
let decryptedBytes = [UInt8](data).enumerated().map { index, byte in
return byte ^ keyBytes[index % keyLength]
}
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let keyBytes = [UInt8](keyData)
let encryptedBytes = string.utf8.enumerated().map { index, char in
return char ^ keyBytes[index % keyLength]
}
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let keyBytes = [UInt8](keyData)
let decryptedBytes = [UInt8](data).enumerated().map { index, byte in
return byte ^ keyBytes[index % keyLength]
}
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
}
```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Error converting key to data")
}
let keyCount = keyData.count
let keyBytes = [UInt8](keyData)
let encryptedBytes = string.utf8.enumerated().map { index, char in
return char ^ keyBytes[index % keyCount]
}
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Error converting key to data")
}
let keyCount = keyData.count
let keyBytes = [UInt8](keyData)
let decryptedBytes = [UInt8](data).enumerated().map { index, byte in
return byte ^ keyBytes[index % keyCount]
}
return String(bytes: decryptedBytes, encoding: .utf8) ?? ""
}
}```swift
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
guard let keyData = key.data(using: .utf8) else {
fatalError("Error converting key to data")
}
let keyCount = keyData.count
let keyBytes = [UInt8](keyData)
let encryptedBytes = string.utf8.enumerated().map { index, char in
return char ^ keyBytes[index % keyCount]
}
return Data(encryptedBytes)
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Error converting key to data")
}
let keyCount = keyData.count
let keyBytes = [UInt8](keyData)
let decryptedBytes = [UInt8](data).enumerated().map { index, byte in
return byte ^ keyBytes[index % keyCount]
}
return String(bytes: decryptedBytes, 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 {
guard let keyData = key.data(using: .utf8) else { return Data() }
let keyLength = keyData.count
let stringData = string.data(using: .utf8) ?? Data()
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else { return "" }
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```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 {
guard let keyData = key.data(using: .utf8) else { return Data() }
let keyLength = keyData.count
let stringData = string.data(using: .utf8) ?? Data()
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else { return "" }
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let stringData = string.data(using: .utf8)!
let encryptedData = xor(data: stringData, with: keyData)
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let decryptedData = xor(data: data, with: keyData)
guard let decryptedString = String(data: decryptedData, encoding: .utf8) else {
fatalError("Failed to convert decrypted data to string")
}
return decryptedString
}
private func xor(data: Data, with key: Data) -> Data {
var encryptedData = Data()
for i in 0..<data.count {
encryptedData.append(data[i] ^ key[i % key.count])
}
return encryptedData
}
}```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let stringData = string.data(using: .utf8)!
let encryptedData = xor(data: stringData, with: keyData)
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let decryptedData = xor(data: data, with: keyData)
guard let decryptedString = String(data: decryptedData, encoding: .utf8) else {
fatalError("Failed to convert decrypted data to string")
}
return decryptedString
}
private func xor(data: Data, with key: Data) -> Data {
var encryptedData = Data()
for i in 0..<data.count {
encryptedData.append(data[i] ^ key[i % key.count])
}
return encryptedData
}
}
```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 keyData = key.data(using: .utf8) else {
fatalError("Error converting key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Error converting key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Error converting key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Error converting key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let stringData = string.data(using: .utf8)!
let stringCount = stringData.count
var encryptedData = Data()
for i in 0..<stringCount {
let keyByte = keyData[i % keyCount]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let dataCount = data.count
var decryptedString = ""
for i in 0..<dataCount {
let keyByte = keyData[i % keyCount]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let stringData = string.data(using: .utf8)!
let stringCount = stringData.count
var encryptedData = Data()
for i in 0..<stringCount {
let keyByte = keyData[i % keyCount]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyCount = keyData.count
let dataCount = data.count
var decryptedString = ""
for i in 0..<dataCount {
let keyByte = keyData[i % keyCount]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 keyData = key.data(using: .utf8) else { return Data() }
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
encryptedData.append(stringData[i] ^ keyData[i % keyLength])
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else { return "" }
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
decryptedString.append(Character(UnicodeScalar(Int(data[i] ^ keyData[i % keyLength])))
}
return decryptedString
}
}```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 {
guard let keyData = key.data(using: .utf8) else { return Data() }
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
encryptedData.append(stringData[i] ^ keyData[i % keyLength])
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else { return "" }
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
decryptedString.append(Character(UnicodeScalar(Int(data[i] ^ keyData[i % keyLength])))
}
return decryptedString
}
}
```decryptedString.append(Character(UnicodeScalar(Int(data[i] ^ keyData[i % keyLength]))) // value of optional type 'UnicodeScalar?' (aka 'Optional<Unicode.Scalar>') must be unwrapped to a value of type 'UnicodeScalar' (aka 'Unicode.Scalar')} // expected ')' in expression listprotocol 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 keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let stringData = string.data(using: .utf8)!
let encryptedData = xor(data: stringData, with: keyData)
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let decryptedData = xor(data: data, with: keyData)
let decryptedString = String(data: decryptedData, encoding: .utf8)!
return decryptedString
}
private func xor(data: Data, with key: Data) -> Data {
var encryptedData = Data()
for i in 0..<data.count {
encryptedData.append(data[i] ^ key[i % key.count])
}
return encryptedData
}
}```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let stringData = string.data(using: .utf8)!
let encryptedData = xor(data: stringData, with: keyData)
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let decryptedData = xor(data: data, with: keyData)
let decryptedString = String(data: decryptedData, encoding: .utf8)!
return decryptedString
}
private func xor(data: Data, with key: Data) -> Data {
var encryptedData = Data()
for i in 0..<data.count {
encryptedData.append(data[i] ^ key[i % key.count])
}
return encryptedData
}
}
```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 keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let stringData = string.data(using: .utf8)!
let encryptedData = xor(data: stringData, with: keyData)
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let decryptedData = xor(data: data, with: keyData)
guard let decryptedString = String(data: decryptedData, encoding: .utf8) else {
fatalError("Failed to convert decrypted data to string")
}
return decryptedString
}
private func xor(data: Data, with key: Data) -> Data {
var encryptedData = Data()
for i in 0..<data.count {
encryptedData.append(data[i] ^ key[i % key.count])
}
return encryptedData
}
}```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let stringData = string.data(using: .utf8)!
let encryptedData = xor(data: stringData, with: keyData)
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let decryptedData = xor(data: data, with: keyData)
guard let decryptedString = String(data: decryptedData, encoding: .utf8) else {
fatalError("Failed to convert decrypted data to string")
}
return decryptedString
}
private func xor(data: Data, with key: Data) -> Data {
var encryptedData = Data()
for i in 0..<data.count {
encryptedData.append(data[i] ^ key[i % key.count])
}
return encryptedData
}
}
```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 keyData = key.data(using: .utf8) else { return Data() }
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else { return "" }
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```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 {
guard let keyData = key.data(using: .utf8) else { return Data() }
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else { return "" }
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 keyData = key.data(using: .utf8) else { return Data() }
let keyLength = keyData.count
let stringData = string.data(using: .utf8) ?? Data()
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else { return "" }
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}```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 {
guard let keyData = key.data(using: .utf8) else { return Data() }
let keyLength = keyData.count
let stringData = string.data(using: .utf8) ?? Data()
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let stringByte = stringData[i]
let encryptedByte = keyByte ^ stringByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else { return "" }
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedString.append(Character(UnicodeScalar(decryptedByte)))
}
return decryptedString
}
}
```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 keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
encryptedData.append(stringData[i] ^ keyData[i % keyLength])
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
decryptedString.append(Character(UnicodeScalar(data[i] ^ keyData[i % keyLength])))
}
return decryptedString
}
}```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 {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let stringData = string.data(using: .utf8)!
let stringLength = stringData.count
var encryptedData = Data()
for i in 0..<stringLength {
encryptedData.append(stringData[i] ^ keyData[i % keyLength])
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
guard let keyData = key.data(using: .utf8) else {
fatalError("Failed to convert key to data")
}
let keyLength = keyData.count
let dataLength = data.count
var decryptedString = ""
for i in 0..<dataLength {
decryptedString.append(Character(UnicodeScalar(data[i] ^ keyData[i % keyLength])))
}
return decryptedString
}
}
```protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
let maxRequests: Int
let timeInterval: TimeInterval
var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
let maxRequests: Int
let timeInterval: TimeInterval
var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
let maxRequests: Int
let timeInterval: TimeInterval
var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
let maxRequests: Int
let timeInterval: TimeInterval
var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
requestTimestamps = requestTimestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(now)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
requestTimestamps = requestTimestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestQueue: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
// Remove expired requests
let currentTime = Date()
requestQueue = requestQueue.filter { $0.timeIntervalSince(currentTime) <= timeInterval }
// Check if number of requests is within limit
if requestQueue.count < maxRequests {
requestQueue.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestQueue: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
// Remove expired requests
let currentTime = Date()
requestQueue = requestQueue.filter { $0.timeIntervalSince(currentTime) <= timeInterval }
// Check if number of requests is within limit
if requestQueue.count < maxRequests {
requestQueue.append(currentTime)
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 6 // XCTAssertTrue failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
requestTimestamps = requestTimestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(now)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
requestTimestamps = requestTimestamps.filter { now.timeIntervalSince($0) <= timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.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
}
class RateLimiter: RateLimiterProtocol {
let maxRequests: Int
let timeInterval: TimeInterval
var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
let maxRequests: Int
let timeInterval: TimeInterval
var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
guard requestTimestamps.count < maxRequests else {
return false
}
requestTimestamps.append(currentTime)
return true
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
guard requestTimestamps.count < maxRequests else {
return false
}
requestTimestamps.append(currentTime)
return true
}
}
```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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimes: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date()
requestTimes = requestTimes.filter { currentTime.timeIntervalSince($0) <= timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimes: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date()
requestTimes = requestTimes.filter { currentTime.timeIntervalSince($0) <= timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
guard requestTimestamps.count < maxRequests else {
return false
}
requestTimestamps.append(currentTime)
return true
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
guard requestTimestamps.count < maxRequests else {
return false
}
requestTimestamps.append(currentTime)
return true
}
}
```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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
guard requestTimes.count < maxRequests else {
return false
}
requestTimes.append(currentTime)
return true
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
guard requestTimes.count < maxRequests else {
return false
}
requestTimes.append(currentTime)
return true
}
}
```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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
guard requestTimestamps.count < maxRequests else {
return false
}
requestTimestamps.append(currentTime)
return true
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
guard requestTimestamps.count < maxRequests else {
return false
}
requestTimestamps.append(currentTime)
return true
}
}
```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
}
class RateLimiter: RateLimiterProtocol {
let maxRequests: Int
let timeInterval: TimeInterval
var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
let maxRequests: Int
let timeInterval: TimeInterval
var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
guard requestTimestamps.count < maxRequests else {
return false
}
requestTimestamps.append(currentTime)
return true
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSinceReferenceDate
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
guard requestTimestamps.count < maxRequests else {
return false
}
requestTimestamps.append(currentTime)
return true
}
}
```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
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestQueue: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
cleanUpQueue()
if requestQueue.count < maxRequests {
requestQueue.append(Date())
return true
}
return false
}
private func cleanUpQueue() {
let now = Date()
requestQueue = requestQueue.filter { now.timeIntervalSince($0) <= timeInterval }
}
}```swift
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestQueue: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
cleanUpQueue()
if requestQueue.count < maxRequests {
requestQueue.append(Date())
return true
}
return false
}
private func cleanUpQueue() {
let now = Date()
requestQueue = requestQueue.filter { now.timeIntervalSince($0) <= timeInterval }
}
}
```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
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
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 {
var result = 0
queue.sync {
result = self.value
}
return result
}
}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 {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
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 {
var result = 0
queue.sync {
result = self.value
}
return result
}
}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 {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
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 {
var result = 0
queue.sync {
result = self.value
}
return result
}
}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 {
var result = 0
queue.sync {
result = self.value
}
return result
}
}protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
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 {
var result = 0
queue.sync {
result = self.value
}
return result
}
}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 {
var result = 0
queue.sync {
result = self.value
}
return result
}
}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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}```swift
import Foundation
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self.value
}
return result
}
}
```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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return 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 let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}```swift
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
return Pipeline<U>(value: newValue)
}
func execute() -> T {
return value
}
}
```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 {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: UUID = UUID()
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = nextObserverID
nextObserverID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: UUID = UUID()
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = nextObserverID
nextObserverID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let observerID = UUID()
observers[observerID] = observer
return observerID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}
``` // XCTAssertEqual failed: (nil) is not equal to (Optional(10))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 {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var uniqueID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
uniqueID += 1
let id = UUID(uuidString: "\(uniqueID)")!
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var uniqueID: Int = 0
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
uniqueID += 1
let id = UUID(uuidString: "\(uniqueID)")!
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueprotocol 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 {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
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 Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(_value)
}
}
}```swift
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
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 Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(_value)
}
}
}class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
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)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(value)
}
}
}class ObservableProperty<Value>: ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
var value: Value {
didSet {
notifyObservers()
}
}
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { observer in
observer(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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
let wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { wrappedValue }
set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
let wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { wrappedValue }
set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```struct Clamped<Value: Comparable>: ClampedProtocol { // property wrapper type 'Clamped' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) } // cannot assign to property: 'wrappedValue' is a 'let' constantprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
let wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { wrappedValue }
set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
let wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { wrappedValue }
set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```struct Clamped<Value: Comparable>: ClampedProtocol { // property wrapper type 'Clamped' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) } // cannot assign to property: 'wrappedValue' is a 'let' constantprotocol 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
let wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { wrappedValue }
set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
let wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { wrappedValue }
set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```struct Clamped<Value: Comparable>: ClampedProtocol { // property wrapper type 'Clamped' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'set { wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) } // cannot assign to property: 'wrappedValue' is a 'let' constantprotocol 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
let wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var projectedValue: Clamped<Value> {
return self
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
let wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var projectedValue: Clamped<Value> {
return self
}
}
```value = 5 // cannot assign to value: 'value' is a get-only propertyvalue = 15 // cannot assign to value: 'value' is a get-only propertyvalue = -5 // cannot assign to value: 'value' is a get-only propertyprotocol 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}```swift
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), 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 let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, newValue)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, newValue)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}```swift
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
value = newValue
logger(.set, value)
}
}
}
```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 provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery = String(searchQuery.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
return nil
}
}class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery = String(searchQuery.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return ApplicationFeedback.success(city: currentSearch, forecast: forecast)
} catch {
return ApplicationFeedback.failure(city: currentSearch)
}
}
return nil
}
}class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return ApplicationFeedback.success(city: currentSearch, forecast: forecast)
} catch {
return ApplicationFeedback.failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
return nil
}
}class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery = String(searchQuery.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
return nil
}
}class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery = String(searchQuery.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery = String(searchQuery.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return ApplicationFeedback.success(city: searchQuery, forecast: forecast)
} catch {
return ApplicationFeedback.failure(city: searchQuery)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery = String(searchQuery.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return ApplicationFeedback.success(city: searchQuery, forecast: forecast)
} catch {
return ApplicationFeedback.failure(city: searchQuery)
}
}
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 provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery = String(searchQuery.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
return nil
}
}class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery = String(searchQuery.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
return nil
}
}class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
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 provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity = String(currentCity.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity = String(currentCity.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
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 provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity = String(currentCity.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity = String(currentCity.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity = String(currentCity.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity = String(currentCity.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
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 provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
return nil
}
}class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearch: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearch.append(character)
case .keyboardDeleteBackwards:
currentSearch = String(currentSearch.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearch)
return .success(city: currentSearch, forecast: forecast)
} catch {
return .failure(city: currentSearch)
}
}
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 provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity = String(currentCity.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity = String(currentCity.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
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 provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
return nil
}
}```swift
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentCity: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentCity.append(character)
case .keyboardDeleteBackwards:
currentCity.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentCity)
return .success(city: currentCity, forecast: forecast)
} catch {
return .failure(city: currentCity)
}
}
return nil
}
}
```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 _balance: Double
required init(balance: Double) {
self._balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}```swift
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
self._balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
self._balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
self._balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
self._balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}```swift
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
self._balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= 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
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}actor BankAccount: BankAccountProtocol {
private var _balance: Double
required init(balance: Double) {
_balance = balance
}
var balance: Double {
get async {
return _balance
}
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}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 wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}```swift
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: () -> Value
private var condition: () -> Bool
private var cachedValue: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if cachedValue == nil || condition() {
cachedValue = wrappedValue()
}
return cachedValue!
}
}
}struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}```swift
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
infix operator >>>: FunctionCompositionPrecedence
func >>><A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let bufferPointer = UnsafeRawBufferPointer(start: buffer, count: bytesRead)
hasher.update(buffer: bufferPointer)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let bufferPointer = UnsafeRawBufferPointer(start: buffer, count: bytesRead)
hasher.update(buffer: bufferPointer)
}
return hasher.finalize()
}hasher.update(buffer: bufferPointer) // no exact matches in call to instance method 'update'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let bufferPointer = UnsafeRawBufferPointer(start: buffer, count: bytesRead)
hasher.update(buffer: bufferPointer)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let bufferPointer = UnsafeRawBufferPointer(start: buffer, count: bytesRead)
hasher.update(buffer: bufferPointer)
}
return hasher.finalize()
}hasher.update(buffer: bufferPointer) // no exact matches in call to instance method 'update'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let bufferPointer = UnsafeRawBufferPointer(start: buffer, count: bytesRead)
hasher.update(buffer: bufferPointer)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let bufferPointer = UnsafeRawBufferPointer(start: buffer, count: bytesRead)
hasher.update(buffer: bufferPointer)
}
return hasher.finalize()
}hasher.update(buffer: bufferPointer) // no exact matches in call to instance method 'update'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let bufferPointer = UnsafeRawBufferPointer(start: buffer, count: bytesRead)
hasher.update(bufferPointer)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let bufferPointer = UnsafeRawBufferPointer(start: buffer, count: bytesRead)
hasher.update(bufferPointer)
}
return hasher.finalize()
}hasher.update(bufferPointer) // no exact matches in call to instance method 'update'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
let chunk = buffer.prefix(bytesRead)
hasher.update(data: Data(chunk))
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
let chunk = buffer.prefix(bytesRead)
hasher.update(data: Data(chunk))
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
hasher.update(data: Data(buffer.prefix(bytesRead)))
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
hasher.update(data: Data(buffer.prefix(bytesRead)))
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer.prefix(bytesRead)))
}
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer.prefix(bytesRead)))
}
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer {
inputStream.close()
}
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
let data = Data(bytesNoCopy: buffer, count: bytesRead, deallocator: .none)
hasher.update(data: data)
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer.prefix(bytesRead)))
}
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer.prefix(bytesRead)))
}
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer.prefix(bytesRead)))
}
}
return hasher.finalize()
}import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var hasher = SHA256()
inputStream.open()
defer { inputStream.close() }
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer.prefix(bytesRead)))
}
}
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 utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}String(cString: UnsafePointer($0.baseAddress)) // value of optional type 'UnsafePointer<Int8>?' must be unwrapped to a value of type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}String(cString: UnsafePointer($0.baseAddress)) // value of optional type 'UnsafePointer<Int8>?' must be unwrapped to a value of type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}String(cString: UnsafePointer($0.baseAddress)) // value of optional type 'UnsafePointer<Int8>?' must be unwrapped to a value of type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}String(cString: UnsafePointer($0.baseAddress)) // value of optional type 'UnsafePointer<Int8>?' must be unwrapped to a value of type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}String(cString: UnsafePointer($0.baseAddress)) // value of optional type 'UnsafePointer<Int8>?' must be unwrapped to a value of type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedArray = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedArray, as: UTF8.self)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedArray = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedArray, as: UTF8.self)
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: $0.baseAddress!)
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: $0.baseAddress!)
}
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = String(cString: utf8Array)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = String(cString: utf8Array)
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedUtf8Array = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedUtf8Array, as: UTF8.self)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedUtf8Array = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedUtf8Array, as: UTF8.self)
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = String(cString: utf8Array)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = String(cString: utf8Array)
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: UnsafePointer($0.baseAddress))
}
}
}String(cString: UnsafePointer($0.baseAddress)) // value of optional type 'UnsafePointer<Int8>?' must be unwrapped to a value of type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: $0.baseAddress!)
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: $0.baseAddress!)
}
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: $0.baseAddress!)
}
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = utf8Array.withUnsafeBufferPointer {
String(cString: $0.baseAddress!)
}
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = String(cString: utf8Array)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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, 0]
self = String(cString: utf8Array)
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array = [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]
let nullTerminatedCString = utf8Array.prefix { $0 != 0 }
self = String(cString: nullTerminatedCString)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array = [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]
let nullTerminatedCString = utf8Array.prefix { $0 != 0 }
self = String(cString: nullTerminatedCString)
}
}self = String(cString: nullTerminatedCString) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedUtf8Array = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedUtf8Array, as: UTF8.self)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedUtf8Array = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedUtf8Array, as: UTF8.self)
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedUtf8Array = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedUtf8Array, as: UTF8.self)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedUtf8Array = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedUtf8Array, as: UTF8.self)
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = [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 nullTerminatedBytes = bytes
nullTerminatedBytes.append(0)
self = nullTerminatedBytes.withUnsafeBufferPointer {
String(cString: $0.baseAddress!)
}
}
}extension String {
init(tuple16: Tuple16) {
let bytes = [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 nullTerminatedBytes = bytes
nullTerminatedBytes.append(0)
self = nullTerminatedBytes.withUnsafeBufferPointer {
String(cString: $0.baseAddress!)
}
}
}typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let byteArray: [Int8] = [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]
let nullTerminatedData = Data(bytes: byteArray, count: byteArray.count)
if let str = String(data: nullTerminatedData, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}extension String {
init(tuple16: Tuple16) {
let byteArray: [Int8] = [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]
let nullTerminatedData = Data(bytes: byteArray, count: byteArray.count)
if let str = String(data: nullTerminatedData, encoding: .utf8) {
self = str
} else {
self = ""
}
}
} // XCTAssertEqual failed: (Hello, World! ) is not equal to (Hello, World!)typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedUtf8Array = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedUtf8Array, as: UTF8.self)
}
}extension String {
init(tuple16: Tuple16) {
let utf8Array: [UInt8] = withUnsafeBytes(of: tuple16) { Array($0) }
let nullTerminatedUtf8Array = utf8Array.prefix(while: { $0 != 0 })
self = String(decoding: nullTerminatedUtf8Array, as: UTF8.self)
}
}import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddress1 = CVPixelBufferGetBaseAddress(lhs)
let baseAddress2 = CVPixelBufferGetBaseAddress(rhs)
let dataSize1 = CVPixelBufferGetDataSize(lhs)
let dataSize2 = CVPixelBufferGetDataSize(rhs)
guard dataSize1 == dataSize2 else {
return false
}
let data1 = Data(bytes: baseAddress1!, count: dataSize1)
let data2 = Data(bytes: baseAddress2!, count: dataSize2)
return data1 == data2
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddress1 = CVPixelBufferGetBaseAddress(lhs)
let baseAddress2 = CVPixelBufferGetBaseAddress(rhs)
let dataSize1 = CVPixelBufferGetDataSize(lhs)
let dataSize2 = CVPixelBufferGetDataSize(rhs)
guard dataSize1 == dataSize2 else {
return false
}
let data1 = Data(bytes: baseAddress1!, count: dataSize1)
let data2 = Data(bytes: baseAddress2!, count: dataSize2)
return data1 == data2
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let bytesPerRowLHS = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRHS = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let lhsRow = baseAddressLHS.advanced(by: row * bytesPerRowLHS)
let rhsRow = baseAddressRHS.advanced(by: row * bytesPerRowRHS)
if memcmp(lhsRow, rhsRow, bytesPerRowLHS) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let bytesPerRowLHS = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRHS = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let lhsRow = baseAddressLHS.advanced(by: row * bytesPerRowLHS)
let rhsRow = baseAddressRHS.advanced(by: row * bytesPerRowRHS)
if memcmp(lhsRow, rhsRow, bytesPerRowLHS) != 0 {
return false
}
}
return true
}
``` // XCTAssertTrue failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLhs = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRhs = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
let width = CVPixelBufferGetWidth(lhs)
for y in 0..<height {
let rowLhs = baseAddressLhs!.advanced(by: y * bytesPerRowLhs)
let rowRhs = baseAddressRhs!.advanced(by: y * bytesPerRowRhs)
if memcmp(rowLhs, rowRhs, bytesPerRowLhs) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLhs = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRhs = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
let width = CVPixelBufferGetWidth(lhs)
for y in 0..<height {
let rowLhs = baseAddressLhs!.advanced(by: y * bytesPerRowLhs)
let rowRhs = baseAddressRhs!.advanced(by: y * bytesPerRowRhs)
if memcmp(rowLhs, rowRhs, bytesPerRowLhs) != 0 {
return false
}
}
return true
}
```let width = CVPixelBufferGetWidth(lhs) // initialization of immutable value 'width' was never used; consider replacing with assignment to '_' or removing itimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
let dataLHS = Data(bytes: baseAddressLHS, count: dataSizeLHS)
let dataRHS = Data(bytes: baseAddressRHS, count: dataSizeRHS)
return dataLHS == dataRHS
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
let dataLHS = Data(bytes: baseAddressLHS, count: dataSizeLHS)
let dataRHS = Data(bytes: baseAddressRHS, count: dataSizeRHS)
return dataLHS == dataRHS
}
``` // XCTAssertTrue failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
let dataLHS = Data(bytes: baseAddressLHS, count: dataSizeLHS)
let dataRHS = Data(bytes: baseAddressRHS, count: dataSizeRHS)
return dataLHS == dataRHS
}import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
let dataLHS = Data(bytes: baseAddressLHS, count: dataSizeLHS)
let dataRHS = Data(bytes: baseAddressRHS, count: dataSizeRHS)
return dataLHS == dataRHS
} // XCTAssertTrue failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
for row in 0..<lhsHeight {
let lhsRow = lhsBaseAddress!.advanced(by: row * lhsBytesPerRow)
let rhsRow = rhsBaseAddress!.advanced(by: row * rhsBytesPerRow)
if memcmp(lhsRow, rhsRow, min(lhsBytesPerRow, rhsBytesPerRow)) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
for row in 0..<lhsHeight {
let lhsRow = lhsBaseAddress!.advanced(by: row * lhsBytesPerRow)
let rhsRow = rhsBaseAddress!.advanced(by: row * rhsBytesPerRow)
if memcmp(lhsRow, rhsRow, min(lhsBytesPerRow, rhsBytesPerRow)) != 0 {
return false
}
}
return true
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
let dataLHS = Data(bytes: baseAddressLHS, count: dataSizeLHS)
let dataRHS = Data(bytes: baseAddressRHS, count: dataSizeRHS)
return dataLHS == dataRHS
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
let dataLHS = Data(bytes: baseAddressLHS, count: dataSizeLHS)
let dataRHS = Data(bytes: baseAddressRHS, count: dataSizeRHS)
return dataLHS == dataRHS
}
``` // XCTAssertTrue failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLhs = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRhs = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
let width = CVPixelBufferGetWidth(lhs)
for y in 0..<height {
let rowLhs = baseAddressLhs!.advanced(by: y * bytesPerRowLhs)
let rowRhs = baseAddressRhs!.advanced(by: y * bytesPerRowRhs)
if memcmp(rowLhs, rowRhs, bytesPerRowLhs) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLhs = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRhs = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
let width = CVPixelBufferGetWidth(lhs)
for y in 0..<height {
let rowLhs = baseAddressLhs!.advanced(by: y * bytesPerRowLhs)
let rowRhs = baseAddressRhs!.advanced(by: y * bytesPerRowRhs)
if memcmp(rowLhs, rowRhs, bytesPerRowLhs) != 0 {
return false
}
}
return true
}
```let width = CVPixelBufferGetWidth(lhs) // initialization of immutable value 'width' was never used; consider replacing with assignment to '_' or removing itimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let dataSizeLhs = CVPixelBufferGetDataSize(lhs)
let dataSizeRhs = CVPixelBufferGetDataSize(rhs)
guard dataSizeLhs == dataSizeRhs else {
return false
}
let lhsData = Data(bytes: baseAddressLhs!, count: dataSizeLhs)
let rhsData = Data(bytes: baseAddressRhs!, count: dataSizeRhs)
return lhsData == rhsData
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let dataSizeLhs = CVPixelBufferGetDataSize(lhs)
let dataSizeRhs = CVPixelBufferGetDataSize(rhs)
guard dataSizeLhs == dataSizeRhs else {
return false
}
let lhsData = Data(bytes: baseAddressLhs!, count: dataSizeLhs)
let rhsData = Data(bytes: baseAddressRhs!, count: dataSizeRhs)
return lhsData == rhsData
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
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)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let rowOffsetLhs = row * bytesPerRowLhs
let rowOffsetRhs = row * bytesPerRowRhs
let lhsRow = baseAddressLhs!.advanced(by: rowOffsetLhs)
let rhsRow = baseAddressRhs!.advanced(by: rowOffsetRhs)
if memcmp(lhsRow, rhsRow, bytesPerRowLhs) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
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)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let rowOffsetLhs = row * bytesPerRowLhs
let rowOffsetRhs = row * bytesPerRowRhs
let lhsRow = baseAddressLhs!.advanced(by: rowOffsetLhs)
let rhsRow = baseAddressRhs!.advanced(by: rowOffsetRhs)
if memcmp(lhsRow, rhsRow, bytesPerRowLhs) != 0 {
return false
}
}
return true
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) else { return false }
guard CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else { return false }
guard CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else { return false }
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs), let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
for y in 0..<lhsHeight {
let lhsRow = lhsBaseAddress.advanced(by: y * lhsBytesPerRow)
let rhsRow = rhsBaseAddress.advanced(by: y * rhsBytesPerRow)
if memcmp(lhsRow, rhsRow, min(lhsBytesPerRow, rhsBytesPerRow)) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) else { return false }
guard CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else { return false }
guard CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else { return false }
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs), let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
for y in 0..<lhsHeight {
let lhsRow = lhsBaseAddress.advanced(by: y * lhsBytesPerRow)
let rhsRow = rhsBaseAddress.advanced(by: y * rhsBytesPerRow)
if memcmp(lhsRow, rhsRow, min(lhsBytesPerRow, rhsBytesPerRow)) != 0 {
return false
}
}
return true
}
``` // XCTAssertTrue failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let dataSizeLhs = CVPixelBufferGetDataSize(lhs)
let dataSizeRhs = CVPixelBufferGetDataSize(rhs)
guard dataSizeLhs == dataSizeRhs else {
return false
}
return memcmp(baseAddressLhs, baseAddressRhs, dataSizeLhs) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let dataSizeLhs = CVPixelBufferGetDataSize(lhs)
let dataSizeRhs = CVPixelBufferGetDataSize(rhs)
guard dataSizeLhs == dataSizeRhs else {
return false
}
return memcmp(baseAddressLhs, baseAddressRhs, dataSizeLhs) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let dataSizeLhs = CVPixelBufferGetDataSize(lhs)
let dataSizeRhs = CVPixelBufferGetDataSize(rhs)
guard dataSizeLhs == dataSizeRhs else {
return false
}
let dataLhs = Data(bytes: baseAddressLhs!, count: dataSizeLhs)
let dataRhs = Data(bytes: baseAddressRhs!, count: dataSizeRhs)
return dataLhs == dataRhs
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let dataSizeLhs = CVPixelBufferGetDataSize(lhs)
let dataSizeRhs = CVPixelBufferGetDataSize(rhs)
guard dataSizeLhs == dataSizeRhs else {
return false
}
let dataLhs = Data(bytes: baseAddressLhs!, count: dataSizeLhs)
let dataRhs = Data(bytes: baseAddressRhs!, count: dataSizeRhs)
return dataLhs == dataRhs
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
let dataLHS = Data(bytes: baseAddressLHS, count: dataSizeLHS)
let dataRHS = Data(bytes: baseAddressRHS, count: dataSizeRHS)
return dataLHS == dataRHS
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
let dataLHS = Data(bytes: baseAddressLHS, count: dataSizeLHS)
let dataRHS = Data(bytes: baseAddressRHS, count: dataSizeRHS)
return dataLHS == dataRHS
}
``` // XCTAssertTrue failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLhs = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRhs = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let lhsRow = baseAddressLhs!.advanced(by: row * bytesPerRowLhs)
let rhsRow = baseAddressRhs!.advanced(by: row * bytesPerRowRhs)
if memcmp(lhsRow, rhsRow, bytesPerRowLhs) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLhs = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRhs = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let lhsRow = baseAddressLhs!.advanced(by: row * bytesPerRowLhs)
let rhsRow = baseAddressRhs!.advanced(by: row * bytesPerRowRhs)
if memcmp(lhsRow, rhsRow, bytesPerRowLhs) != 0 {
return false
}
}
return true
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddress1 = CVPixelBufferGetBaseAddress(lhs),
let baseAddress2 = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let bytesPerRow1 = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRow2 = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
let width = CVPixelBufferGetWidth(lhs)
for y in 0..<height {
let row1 = baseAddress1.advanced(by: y * bytesPerRow1)
let row2 = baseAddress2.advanced(by: y * bytesPerRow2)
if memcmp(row1, row2, width) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddress1 = CVPixelBufferGetBaseAddress(lhs),
let baseAddress2 = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let bytesPerRow1 = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRow2 = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
let width = CVPixelBufferGetWidth(lhs)
for y in 0..<height {
let row1 = baseAddress1.advanced(by: y * bytesPerRow1)
let row2 = baseAddress2.advanced(by: y * bytesPerRow2)
if memcmp(row1, row2, width) != 0 {
return false
}
}
return true
}
``` // XCTAssertTrue failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let dataSizeLhs = CVPixelBufferGetDataSize(lhs)
let dataSizeRhs = CVPixelBufferGetDataSize(rhs)
guard dataSizeLhs == dataSizeRhs else {
return false
}
return memcmp(baseAddressLhs, baseAddressRhs, dataSizeLhs) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs)
let dataSizeLhs = CVPixelBufferGetDataSize(lhs)
let dataSizeRhs = CVPixelBufferGetDataSize(rhs)
guard dataSizeLhs == dataSizeRhs else {
return false
}
return memcmp(baseAddressLhs, baseAddressRhs, dataSizeLhs) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let bytesPerRowLhs = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRhs = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let lhsRow = baseAddressLhs.advanced(by: row * bytesPerRowLhs)
let rhsRow = baseAddressRhs.advanced(by: row * bytesPerRowRhs)
if memcmp(lhsRow, rhsRow, bytesPerRowLhs) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLhs = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRhs = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let bytesPerRowLhs = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRhs = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let lhsRow = baseAddressLhs.advanced(by: row * bytesPerRowLhs)
let rhsRow = baseAddressRhs.advanced(by: row * bytesPerRowRhs)
if memcmp(lhsRow, rhsRow, bytesPerRowLhs) != 0 {
return false
}
}
return true
}
``` // XCTAssertTrue failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags.readOnly)
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags.readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags.readOnly)
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags.readOnly)
}
let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLHS = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRHS = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let rowLHS = baseAddressLHS!.advanced(by: row * bytesPerRowLHS)
let rowRHS = baseAddressRHS!.advanced(by: row * bytesPerRowRHS)
if memcmp(rowLHS, rowRHS, bytesPerRowLHS) != 0 {
return false
}
}
return true
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags.readOnly)
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags.readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags.readOnly)
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags.readOnly)
}
let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs)
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRowLHS = CVPixelBufferGetBytesPerRow(lhs)
let bytesPerRowRHS = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
for row in 0..<height {
let rowLHS = baseAddressLHS!.advanced(by: row * bytesPerRowLHS)
let rowRHS = baseAddressRHS!.advanced(by: row * bytesPerRowRHS)
if memcmp(rowLHS, rowRHS, bytesPerRowLHS) != 0 {
return false
}
}
return true
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
return memcmp(baseAddressLHS, baseAddressRHS, min(dataSizeLHS, dataSizeRHS)) == 0
}```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) &&
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) &&
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
guard let baseAddressLHS = CVPixelBufferGetBaseAddress(lhs),
let baseAddressRHS = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let dataSizeLHS = CVPixelBufferGetDataSize(lhs)
let dataSizeRHS = CVPixelBufferGetDataSize(rhs)
return memcmp(baseAddressLHS, baseAddressRHS, min(dataSizeLHS, dataSizeRHS)) == 0
}
``` // XCTAssertTrue failedstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let publicSize = count * publicStride
let buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: publicSize, alignment: publicStride)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride)
let publicItemPtr = buffer.baseAddress!.advanced(by: i * publicStride)
publicItemPtr.storeBytes(of: privateItemPtr.load(as: PrivateItem.self).value, as: Int.self)
}
let publicItems = buffer.bindMemory(to: PublicItem.self, capacity: count)
defer {
buffer.deallocate()
}
return Array(UnsafeBufferPointer(start: publicItems.baseAddress, count: count))
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let publicSize = count * publicStride
let buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: publicSize, alignment: publicStride)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride)
let publicItemPtr = buffer.baseAddress!.advanced(by: i * publicStride)
publicItemPtr.storeBytes(of: privateItemPtr.load(as: PrivateItem.self).value, as: Int.self)
}
let publicItems = buffer.bindMemory(to: PublicItem.self, capacity: count)
defer {
buffer.deallocate()
}
return Array(UnsafeBufferPointer(start: publicItems.baseAddress, count: count))
}
}
```publicItemPtr.storeBytes(of: privateItemPtr.load(as: PrivateItem.self).value, as: Int.self) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let totalSize = count * privateSize
let publicBuffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
let publicPtr = UnsafeMutableRawPointer(publicBuffer.baseAddress)
publicPtr.copyMemory(from: ptr.baseAddress!, byteCount: totalSize)
let publicItems = publicBuffer.baseAddress!.bindMemory(to: PublicItem.self, capacity: count)
return Array(UnsafeBufferPointer(start: publicItems, count: count))
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let totalSize = count * privateSize
let publicBuffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
let publicPtr = UnsafeMutableRawPointer(publicBuffer.baseAddress)
publicPtr.copyMemory(from: ptr.baseAddress!, byteCount: totalSize)
let publicItems = publicBuffer.baseAddress!.bindMemory(to: PublicItem.self, capacity: count)
return Array(UnsafeBufferPointer(start: publicItems, count: count))
}
}
```publicPtr.copyMemory(from: ptr.baseAddress!, byteCount: totalSize) // value of optional type 'UnsafeMutableRawPointer?' must be unwrapped to refer to member 'copyMemory' of wrapped base type 'UnsafeMutableRawPointer'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 { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let buffer = UnsafeBufferPointer(start: ptr.baseAddress!.assumingMemoryBound(to: PublicItem.self), count: count)
return Array(buffer)
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let buffer = UnsafeBufferPointer(start: ptr.baseAddress!.assumingMemoryBound(to: PublicItem.self), count: count)
return Array(buffer)
}
}
```let stride = MemoryLayout<PrivateItem>.stride // initialization of immutable value 'stride' 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
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let totalSize = count * privateSize
let publicBuffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
let publicPtr = UnsafeMutableRawPointer(publicBuffer.baseAddress)
publicPtr.copyMemory(from: ptr.baseAddress!, byteCount: totalSize)
let publicItems = Array(UnsafeBufferPointer(start: publicPtr.bindMemory(to: PublicItem.self, capacity: count), count: count))
publicBuffer.deallocate()
return publicItems
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let totalSize = count * privateSize
let publicBuffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
let publicPtr = UnsafeMutableRawPointer(publicBuffer.baseAddress)
publicPtr.copyMemory(from: ptr.baseAddress!, byteCount: totalSize)
let publicItems = Array(UnsafeBufferPointer(start: publicPtr.bindMemory(to: PublicItem.self, capacity: count), count: count))
publicBuffer.deallocate()
return publicItems
}
}
```publicPtr.copyMemory(from: ptr.baseAddress!, byteCount: totalSize) // value of optional type 'UnsafeMutableRawPointer?' must be unwrapped to refer to member 'copyMemory' of wrapped base type 'UnsafeMutableRawPointer'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 { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let publicAlignment = MemoryLayout<PublicItem>.alignment
let privateAlignment = MemoryLayout<PrivateItem>.alignment
let publicBuffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
defer {
publicBuffer.deallocate()
}
for i in 0..<count {
let privateStart = ptr.baseAddress!.advanced(by: i * privateSize)
let publicStart = UnsafeMutableRawPointer(publicBuffer.baseAddress!).advanced(by: i * publicSize)
memcpy(publicStart, privateStart, privateSize)
}
return Array(publicBuffer)
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let publicAlignment = MemoryLayout<PublicItem>.alignment
let privateAlignment = MemoryLayout<PrivateItem>.alignment
let publicBuffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
defer {
publicBuffer.deallocate()
}
for i in 0..<count {
let privateStart = ptr.baseAddress!.advanced(by: i * privateSize)
let publicStart = UnsafeMutableRawPointer(publicBuffer.baseAddress!).advanced(by: i * publicSize)
memcpy(publicStart, privateStart, privateSize)
}
return Array(publicBuffer)
}
}
```let publicAlignment = MemoryLayout<PublicItem>.alignment // initialization of immutable value 'publicAlignment' was never used; consider replacing with assignment to '_' or removing itlet privateAlignment = MemoryLayout<PrivateItem>.alignment // initialization of immutable value 'privateAlignment' 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
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride).assumingMemoryBound(to: PrivateItem.self)
let publicItemPtr = buffer.baseAddress!.advanced(by: i)
publicItemPtr.pointee = withUnsafeBytes(of: privateItemPtr.pointee.value) { PublicItem(value: $0.load(as: Int.self)) }
}
let result = Array(buffer)
buffer.deallocate()
return result
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride).assumingMemoryBound(to: PrivateItem.self)
let publicItemPtr = buffer.baseAddress!.advanced(by: i)
publicItemPtr.pointee = withUnsafeBytes(of: privateItemPtr.pointee.value) { PublicItem(value: $0.load(as: Int.self)) }
}
let result = Array(buffer)
buffer.deallocate()
return result
}
}
```publicItemPtr.pointee = withUnsafeBytes(of: privateItemPtr.pointee.value) { PublicItem(value: $0.load(as: Int.self)) } // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride)
let publicItemPtr = UnsafeMutableRawPointer(buffer.baseAddress!).advanced(by: i * publicStride)
publicItemPtr.copyMemory(from: privateItemPtr, byteCount: stride)
}
return Array(buffer)
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride)
let publicItemPtr = UnsafeMutableRawPointer(buffer.baseAddress!).advanced(by: i * publicStride)
publicItemPtr.copyMemory(from: privateItemPtr, byteCount: stride)
}
return Array(buffer)
}
}
```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 { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
buffer.initialize(repeating: PublicItem(value: 0), count: count)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride)
let publicItemPtr = buffer.baseAddress!.advanced(by: i * publicStride)
publicItemPtr.initializeMemory(as: PublicItem.self, from: privateItemPtr, count: 1)
}
return Array(buffer)
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
buffer.initialize(repeating: PublicItem(value: 0), count: count)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride)
let publicItemPtr = buffer.baseAddress!.advanced(by: i * publicStride)
publicItemPtr.initializeMemory(as: PublicItem.self, from: privateItemPtr, count: 1)
}
return Array(buffer)
}
}
```buffer.initialize(repeating: PublicItem(value: 0), count: count) // extra argument 'count' in callstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
var publicItems = [PublicItem]()
for i in 0..<count {
let offset = i * stride
let publicItemPtr = baseAddress.advanced(by: offset).assumingMemoryBound(to: PublicItem.self)
let publicItem = publicItemPtr.pointee
publicItems.append(publicItem)
}
return publicItems
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
var publicItems = [PublicItem]()
for i in 0..<count {
let offset = i * stride
let publicItemPtr = baseAddress.advanced(by: offset).assumingMemoryBound(to: PublicItem.self)
let publicItem = publicItemPtr.pointee
publicItems.append(publicItem)
}
return publicItems
}
}
```let publicStride = MemoryLayout<PublicItem>.stride // initialization of immutable value 'publicStride' 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
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
var publicItems = [PublicItem]()
for i in 0..<count {
let offset = i * stride
let publicItemPtr = baseAddress.advanced(by: offset).assumingMemoryBound(to: PublicItem.self)
let publicItem = publicItemPtr.pointee
publicItems.append(publicItem)
}
return publicItems
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
var publicItems = [PublicItem]()
for i in 0..<count {
let offset = i * stride
let publicItemPtr = baseAddress.advanced(by: offset).assumingMemoryBound(to: PublicItem.self)
let publicItem = publicItemPtr.pointee
publicItems.append(publicItem)
}
return publicItems
}
}
```let publicStride = MemoryLayout<PublicItem>.stride // initialization of immutable value 'publicStride' 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
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let itemSize = MemoryLayout<PrivateItem>.size
let publicItemSize = MemoryLayout<PublicItem>.size
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * itemSize)
let publicItemPtr = buffer.baseAddress!.advanced(by: i)
privateItemPtr.withMemoryRebound(to: PublicItem.self, capacity: 1) { publicItemPtr.pointee = $0.pointee }
}
let result = Array(buffer)
buffer.deallocate()
return result
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let itemSize = MemoryLayout<PrivateItem>.size
let publicItemSize = MemoryLayout<PublicItem>.size
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * itemSize)
let publicItemPtr = buffer.baseAddress!.advanced(by: i)
privateItemPtr.withMemoryRebound(to: PublicItem.self, capacity: 1) { publicItemPtr.pointee = $0.pointee }
}
let result = Array(buffer)
buffer.deallocate()
return result
}
}
```let publicItemSize = MemoryLayout<PublicItem>.size // initialization of immutable value 'publicItemSize' 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
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let buffer = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
buffer.initialize(repeating: PublicItem(value: 0), count: count)
for i in 0..<count {
let privatePtr = ptr.baseAddress!.advanced(by: i * privateSize).assumingMemoryBound(to: PrivateItem.self)
let publicPtr = buffer.advanced(by: i)
publicPtr.pointee = PublicItem(value: privatePtr.pointee.value)
}
let publicBuffer = UnsafeBufferPointer(start: buffer, count: count)
let publicItems = Array(publicBuffer)
buffer.deinitialize(count: count)
buffer.deallocate()
return publicItems
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let buffer = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
buffer.initialize(repeating: PublicItem(value: 0), count: count)
for i in 0..<count {
let privatePtr = ptr.baseAddress!.advanced(by: i * privateSize).assumingMemoryBound(to: PrivateItem.self)
let publicPtr = buffer.advanced(by: i)
publicPtr.pointee = PublicItem(value: privatePtr.pointee.value)
}
let publicBuffer = UnsafeBufferPointer(start: buffer, count: count)
let publicItems = Array(publicBuffer)
buffer.deinitialize(count: count)
buffer.deallocate()
return publicItems
}
}
```publicPtr.pointee = PublicItem(value: privatePtr.pointee.value) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let publicSize = count * publicStride
let buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: publicSize, alignment: publicStride)
for i in 0..<count {
let privateItemPtr = baseAddress.advanced(by: i * stride).bindMemory(to: PrivateItem.self, capacity: 1)
let publicItemPtr = buffer.baseAddress!.advanced(by: i * publicStride).bindMemory(to: PublicItem.self, capacity: 1)
publicItemPtr.pointee = PublicItem(value: privateItemPtr.pointee.value)
}
let publicItems = buffer.bindMemory(to: PublicItem.self)
defer {
buffer.deallocate()
}
return Array(UnsafeBufferPointer(start: publicItems.baseAddress, count: count))
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let publicSize = count * publicStride
let buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: publicSize, alignment: publicStride)
for i in 0..<count {
let privateItemPtr = baseAddress.advanced(by: i * stride).bindMemory(to: PrivateItem.self, capacity: 1)
let publicItemPtr = buffer.baseAddress!.advanced(by: i * publicStride).bindMemory(to: PublicItem.self, capacity: 1)
publicItemPtr.pointee = PublicItem(value: privateItemPtr.pointee.value)
}
let publicItems = buffer.bindMemory(to: PublicItem.self)
defer {
buffer.deallocate()
}
return Array(UnsafeBufferPointer(start: publicItems.baseAddress, count: count))
}
}
```publicItemPtr.pointee = PublicItem(value: privateItemPtr.pointee.value) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let publicSize = count * publicStride
let buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: publicSize, alignment: publicStride)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride)
let publicItemPtr = buffer.baseAddress!.advanced(by: i * publicStride)
publicItemPtr.copyMemory(from: privateItemPtr, byteCount: stride)
}
let publicItems = buffer.bindMemory(to: PublicItem.self, capacity: count)
return Array(UnsafeBufferPointer(start: publicItems.baseAddress, count: count))
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
let publicSize = count * publicStride
let buffer = UnsafeMutableRawBufferPointer.allocate(byteCount: publicSize, alignment: publicStride)
for i in 0..<count {
let privateItemPtr = ptr.baseAddress!.advanced(by: i * stride)
let publicItemPtr = buffer.baseAddress!.advanced(by: i * publicStride)
publicItemPtr.copyMemory(from: privateItemPtr, byteCount: stride)
}
let publicItems = buffer.bindMemory(to: PublicItem.self, capacity: count)
return Array(UnsafeBufferPointer(start: publicItems.baseAddress, count: count))
}
}
```let publicItems = buffer.bindMemory(to: PublicItem.self, capacity: count) // extra argument 'capacity' in callstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let buffer = UnsafeBufferPointer(start: ptr.baseAddress?.assumingMemoryBound(to: PublicItem.self), count: count)
return Array(buffer)
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let buffer = UnsafeBufferPointer(start: ptr.baseAddress?.assumingMemoryBound(to: PublicItem.self), count: count)
return Array(buffer)
}
}
```let stride = MemoryLayout<PrivateItem>.stride // initialization of immutable value 'stride' 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
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
return (0..<count).map { index in
let offset = stride * index
let itemPtr = baseAddress.advanced(by: offset).assumingMemoryBound(to: PrivateItem.self)
let value = itemPtr.pointee.value
return PublicItem(value: value)
}
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
return (0..<count).map { index in
let offset = stride * index
let itemPtr = baseAddress.advanced(by: offset).assumingMemoryBound(to: PrivateItem.self)
let value = itemPtr.pointee.value
return PublicItem(value: value)
}
}
}
```let value = itemPtr.pointee.value // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
var publicItems = [PublicItem]()
publicItems.reserveCapacity(count)
for i in 0..<count {
let offset = i * stride
let privateItemPtr = baseAddress.advanced(by: offset).assumingMemoryBound(to: PrivateItem.self)
let publicItemPtr = privateItemPtr.withMemoryRebound(to: PublicItem.self, capacity: 1) { $0 }
publicItems.append(publicItemPtr.pointee)
}
return publicItems
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let publicStride = MemoryLayout<PublicItem>.stride
var publicItems = [PublicItem]()
publicItems.reserveCapacity(count)
for i in 0..<count {
let offset = i * stride
let privateItemPtr = baseAddress.advanced(by: offset).assumingMemoryBound(to: PrivateItem.self)
let publicItemPtr = privateItemPtr.withMemoryRebound(to: PublicItem.self, capacity: 1) { $0 }
publicItems.append(publicItemPtr.pointee)
}
return publicItems
}
}
```let publicStride = MemoryLayout<PublicItem>.stride // initialization of immutable value 'publicStride' 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
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let publicBuffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
let privateBuffer = UnsafeMutableBufferPointer(start: UnsafeMutableRawPointer(mutating: ptr.baseAddress), count: count * privateSize)
for i in 0..<count {
let privateItemPtr = privateBuffer.baseAddress!.advanced(by: i * privateSize)
let publicItemPtr = UnsafeMutableRawPointer(publicBuffer.baseAddress)!.advanced(by: i * publicSize)
publicItemPtr.copyMemory(from: privateItemPtr, byteCount: privateSize)
}
let publicItems = Array(publicBuffer)
publicBuffer.deallocate()
return publicItems
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { ptr in
let count = items.count
let publicSize = MemoryLayout<PublicItem>.size
let privateSize = MemoryLayout<PrivateItem>.size
let publicBuffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: count)
let privateBuffer = UnsafeMutableBufferPointer(start: UnsafeMutableRawPointer(mutating: ptr.baseAddress), count: count * privateSize)
for i in 0..<count {
let privateItemPtr = privateBuffer.baseAddress!.advanced(by: i * privateSize)
let publicItemPtr = UnsafeMutableRawPointer(publicBuffer.baseAddress)!.advanced(by: i * publicSize)
publicItemPtr.copyMemory(from: privateItemPtr, byteCount: privateSize)
}
let publicItems = Array(publicBuffer)
publicBuffer.deallocate()
return publicItems
}
}
```let privateBuffer = UnsafeMutableBufferPointer(start: UnsafeMutableRawPointer(mutating: ptr.baseAddress), count: count * privateSize) // cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafeMutablePointer<Element>'let privateBuffer = UnsafeMutableBufferPointer(start: UnsafeMutableRawPointer(mutating: ptr.baseAddress), count: count * privateSize) // generic parameter 'Element' could not be inferredstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let buffer = UnsafeBufferPointer(start: baseAddress.assumingMemoryBound(to: PublicItem.self), count: count)
return Array(buffer)
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
guard let baseAddress = ptr.baseAddress else {
return []
}
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let buffer = UnsafeBufferPointer(start: baseAddress.assumingMemoryBound(to: PublicItem.self), count: count)
return Array(buffer)
}
}
```let stride = MemoryLayout<PrivateItem>.stride // initialization of immutable value 'stride' 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
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let buffer = UnsafeBufferPointer(start: ptr.baseAddress!.assumingMemoryBound(to: PublicItem.self), count: count)
return Array(buffer)
}
}```swift
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes { ptr in
let count = items.count
let stride = MemoryLayout<PrivateItem>.stride
let buffer = UnsafeBufferPointer(start: ptr.baseAddress!.assumingMemoryBound(to: PublicItem.self), count: count)
return Array(buffer)
}
}
```let stride = MemoryLayout<PrivateItem>.stride // initialization of immutable value 'stride' was never used; consider replacing with assignment to '_' or removing itenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
// Implementation of version comparison logic
}enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
// Implementation of version comparison logic
}} // missing return in global function expected to return 'ComparisonResult'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for index in 0..<maxLength {
let lhsValue = index < lhsComponents.count ? lhsComponents[index] : "0"
let rhsValue = index < rhsComponents.count ? rhsComponents[index] : "0"
if let lhsNumericValue = Int(lhsValue), let rhsNumericValue = Int(rhsValue) {
if lhsNumericValue < rhsNumericValue {
return .orderedAscending
} else if lhsNumericValue > rhsNumericValue {
return .orderedDescending
}
} else {
if lhsValue < rhsValue {
return .orderedAscending
} else if lhsValue > rhsValue {
return .orderedDescending
}
}
}
return .orderedSame
}enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for index in 0..<maxLength {
let lhsValue = index < lhsComponents.count ? lhsComponents[index] : "0"
let rhsValue = index < rhsComponents.count ? rhsComponents[index] : "0"
if let lhsNumericValue = Int(lhsValue), let rhsNumericValue = Int(rhsValue) {
if lhsNumericValue < rhsNumericValue {
return .orderedAscending
} else if lhsNumericValue > rhsNumericValue {
return .orderedDescending
}
} else {
if lhsValue < rhsValue {
return .orderedAscending
} else if lhsValue > rhsValue {
return .orderedDescending
}
}
}
return .orderedSame
} // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
return .orderedSame
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta && !rhs.isAlpha {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
return .orderedSame
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta && !rhs.isAlpha {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ value: String) {
let components = value.components(separatedBy: "-")
if let versionValue = Int(components[0]) {
self.value = versionValue
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta && !rhs.isAlpha {
return true
} else {
return lhs.value < rhs.value
}
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ value: String) {
let components = value.components(separatedBy: "-")
if let versionValue = Int(components[0]) {
self.value = versionValue
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta && !rhs.isAlpha {
return true
} else {
return lhs.value < rhs.value
}
}
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsNumericValue = Int(lhsComponent), let rhsNumericValue = Int(rhsComponent) {
if lhsNumericValue < rhsNumericValue {
return .orderedAscending
} else if lhsNumericValue > rhsNumericValue {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsNumericValue = Int(lhsComponent), let rhsNumericValue = Int(rhsComponent) {
if lhsNumericValue < rhsNumericValue {
return .orderedAscending
} else if lhsNumericValue > rhsNumericValue {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(versionString: lhsComponent), let rhsVersion = Version(versionString: rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let versionString: String
let numericValue: Int
let isAlpha: Bool
let isBeta: Bool
init?(versionString: String) {
self.versionString = versionString
let components = versionString.components(separatedBy: "-")
if let numericValue = Int(components[0]) {
self.numericValue = numericValue
} else {
return nil
}
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.numericValue < rhs.numericValue
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.numericValue == rhs.numericValue && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(versionString: lhsComponent), let rhsVersion = Version(versionString: rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let versionString: String
let numericValue: Int
let isAlpha: Bool
let isBeta: Bool
init?(versionString: String) {
self.versionString = versionString
let components = versionString.components(separatedBy: "-")
if let numericValue = Int(components[0]) {
self.numericValue = numericValue
} else {
return nil
}
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.numericValue < rhs.numericValue
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.numericValue == rhs.numericValue && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else if lhs.value < rhs.value {
return true
} else {
return false
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else if lhs.value < rhs.value {
return true
} else {
return false
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta && !rhs.isAlpha {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta && !rhs.isAlpha {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
return .orderedSame
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
return .orderedSame
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsValue = i < lhsComponents.count ? lhsComponents[i] : ""
let rhsValue = i < rhsComponents.count ? rhsComponents[i] : ""
if let lhsNumeric = Int(lhsValue), let rhsNumeric = Int(rhsValue) {
if lhsNumeric < rhsNumeric {
return .orderedAscending
} else if lhsNumeric > rhsNumeric {
return .orderedDescending
}
} else {
if lhsValue < rhsValue {
return .orderedAscending
} else if lhsValue > rhsValue {
return .orderedDescending
}
}
}
return .orderedSame
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsValue = i < lhsComponents.count ? lhsComponents[i] : ""
let rhsValue = i < rhsComponents.count ? rhsComponents[i] : ""
if let lhsNumeric = Int(lhsValue), let rhsNumeric = Int(rhsValue) {
if lhsNumeric < rhsNumeric {
return .orderedAscending
} else if lhsNumeric > rhsNumeric {
return .orderedDescending
}
} else {
if lhsValue < rhsValue {
return .orderedAscending
} else if lhsValue > rhsValue {
return .orderedDescending
}
}
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(versionString: lhsComponent), let rhsVersion = Version(versionString: rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let major: Int
let minor: Int
let patch: Int
let prerelease: String?
init(major: Int, minor: Int, patch: Int, prerelease: String? = nil) {
self.major = major
self.minor = minor
self.patch = patch
self.prerelease = prerelease
}
init?(versionString: String) {
let components = versionString.components(separatedBy: "-")
let versionComponents = components[0].components(separatedBy: ".")
guard let major = Int(versionComponents[0]), let minor = Int(versionComponents[1]), let patch = Int(versionComponents[2]) else {
return nil
}
self.major = major
self.minor = minor
self.patch = patch
if components.count > 1 {
self.prerelease = components[1]
} else {
self.prerelease = nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.major != rhs.major {
return lhs.major < rhs.major
} else if lhs.minor != rhs.minor {
return lhs.minor < rhs.minor
} else if lhs.patch != rhs.patch {
return lhs.patch < rhs.patch
} else {
if let lhsPrerelease = lhs.prerelease, let rhsPrerelease = rhs.prerelease {
return lhsPrerelease < rhsPrerelease
} else if lhs.prerelease != nil {
return true
} else {
return false
}
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.major == rhs.major && lhs.minor == rhs.minor && lhs.patch == rhs.patch && lhs.prerelease == rhs.prerelease
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(versionString: lhsComponent), let rhsVersion = Version(versionString: rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let major: Int
let minor: Int
let patch: Int
let prerelease: String?
init(major: Int, minor: Int, patch: Int, prerelease: String? = nil) {
self.major = major
self.minor = minor
self.patch = patch
self.prerelease = prerelease
}
init?(versionString: String) {
let components = versionString.components(separatedBy: "-")
let versionComponents = components[0].components(separatedBy: ".")
guard let major = Int(versionComponents[0]), let minor = Int(versionComponents[1]), let patch = Int(versionComponents[2]) else {
return nil
}
self.major = major
self.minor = minor
self.patch = patch
if components.count > 1 {
self.prerelease = components[1]
} else {
self.prerelease = nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.major != rhs.major {
return lhs.major < rhs.major
} else if lhs.minor != rhs.minor {
return lhs.minor < rhs.minor
} else if lhs.patch != rhs.patch {
return lhs.patch < rhs.patch
} else {
if let lhsPrerelease = lhs.prerelease, let rhsPrerelease = rhs.prerelease {
return lhsPrerelease < rhsPrerelease
} else if lhs.prerelease != nil {
return true
} else {
return false
}
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.major == rhs.major && lhs.minor == rhs.minor && lhs.patch == rhs.patch && lhs.prerelease == rhs.prerelease
}
}
``` // Fatal error: Index out of rangeenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
return .orderedSame
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta && !rhs.isAlpha {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
return .orderedSame
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta && !rhs.isAlpha {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(versionString: lhsComponent), let rhsVersion = Version(versionString: rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let major: Int
let minor: Int
let patch: Int
let preRelease: String?
init(major: Int, minor: Int, patch: Int, preRelease: String? = nil) {
self.major = major
self.minor = minor
self.patch = patch
self.preRelease = preRelease
}
init?(versionString: String) {
let components = versionString.components(separatedBy: "-")
let versionComponents = components[0].components(separatedBy: ".")
guard let major = Int(versionComponents[0]), let minor = Int(versionComponents[1]), let patch = Int(versionComponents[2]) else {
return nil
}
self.major = major
self.minor = minor
self.patch = patch
if components.count > 1 {
self.preRelease = components[1]
} else {
self.preRelease = nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.major != rhs.major {
return lhs.major < rhs.major
} else if lhs.minor != rhs.minor {
return lhs.minor < rhs.minor
} else if lhs.patch != rhs.patch {
return lhs.patch < rhs.patch
} else {
if let lhsPreRelease = lhs.preRelease, let rhsPreRelease = rhs.preRelease {
return lhsPreRelease < rhsPreRelease
} else if lhs.preRelease != nil {
return true
} else {
return false
}
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.major == rhs.major && lhs.minor == rhs.minor && lhs.patch == rhs.patch && lhs.preRelease == rhs.preRelease
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(versionString: lhsComponent), let rhsVersion = Version(versionString: rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let major: Int
let minor: Int
let patch: Int
let preRelease: String?
init(major: Int, minor: Int, patch: Int, preRelease: String? = nil) {
self.major = major
self.minor = minor
self.patch = patch
self.preRelease = preRelease
}
init?(versionString: String) {
let components = versionString.components(separatedBy: "-")
let versionComponents = components[0].components(separatedBy: ".")
guard let major = Int(versionComponents[0]), let minor = Int(versionComponents[1]), let patch = Int(versionComponents[2]) else {
return nil
}
self.major = major
self.minor = minor
self.patch = patch
if components.count > 1 {
self.preRelease = components[1]
} else {
self.preRelease = nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.major != rhs.major {
return lhs.major < rhs.major
} else if lhs.minor != rhs.minor {
return lhs.minor < rhs.minor
} else if lhs.patch != rhs.patch {
return lhs.patch < rhs.patch
} else {
if let lhsPreRelease = lhs.preRelease, let rhsPreRelease = rhs.preRelease {
return lhsPreRelease < rhsPreRelease
} else if lhs.preRelease != nil {
return true
} else {
return false
}
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.major == rhs.major && lhs.minor == rhs.minor && lhs.patch == rhs.patch && lhs.preRelease == rhs.preRelease
}
}
``` // Fatal error: Index out of rangeenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsValue = i < lhsComponents.count ? lhsComponents[i] : ""
let rhsValue = i < rhsComponents.count ? rhsComponents[i] : ""
if let lhsNumericValue = Int(lhsValue), let rhsNumericValue = Int(rhsValue) {
if lhsNumericValue < rhsNumericValue {
return .orderedAscending
} else if lhsNumericValue > rhsNumericValue {
return .orderedDescending
}
} else {
if lhsValue < rhsValue {
return .orderedAscending
} else if lhsValue > rhsValue {
return .orderedDescending
}
}
}
return .orderedSame
}enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsValue = i < lhsComponents.count ? lhsComponents[i] : ""
let rhsValue = i < rhsComponents.count ? rhsComponents[i] : ""
if let lhsNumericValue = Int(lhsValue), let rhsNumericValue = Int(rhsValue) {
if lhsNumericValue < rhsNumericValue {
return .orderedAscending
} else if lhsNumericValue > rhsNumericValue {
return .orderedDescending
}
} else {
if lhsValue < rhsValue {
return .orderedAscending
} else if lhsValue > rhsValue {
return .orderedDescending
}
}
}
return .orderedSame
} // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(versionString: lhsComponent), let rhsVersion = Version(versionString: rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let major: Int
let minor: Int
let patch: Int
let prerelease: String?
init(major: Int, minor: Int, patch: Int, prerelease: String? = nil) {
self.major = major
self.minor = minor
self.patch = patch
self.prerelease = prerelease
}
init?(versionString: String) {
let components = versionString.components(separatedBy: "-")
let versionComponents = components[0].components(separatedBy: ".")
guard let major = Int(versionComponents[0]), let minor = Int(versionComponents[1]), let patch = Int(versionComponents[2]) else {
return nil
}
self.major = major
self.minor = minor
self.patch = patch
if components.count > 1 {
self.prerelease = components[1]
} else {
self.prerelease = nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.major != rhs.major {
return lhs.major < rhs.major
} else if lhs.minor != rhs.minor {
return lhs.minor < rhs.minor
} else if lhs.patch != rhs.patch {
return lhs.patch < rhs.patch
} else {
if let lhsPrerelease = lhs.prerelease, let rhsPrerelease = rhs.prerelease {
return lhsPrerelease < rhsPrerelease
} else if lhs.prerelease != nil {
return true
} else {
return false
}
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.major == rhs.major && lhs.minor == rhs.minor && lhs.patch == rhs.patch && lhs.prerelease == rhs.prerelease
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(versionString: lhsComponent), let rhsVersion = Version(versionString: rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let major: Int
let minor: Int
let patch: Int
let prerelease: String?
init(major: Int, minor: Int, patch: Int, prerelease: String? = nil) {
self.major = major
self.minor = minor
self.patch = patch
self.prerelease = prerelease
}
init?(versionString: String) {
let components = versionString.components(separatedBy: "-")
let versionComponents = components[0].components(separatedBy: ".")
guard let major = Int(versionComponents[0]), let minor = Int(versionComponents[1]), let patch = Int(versionComponents[2]) else {
return nil
}
self.major = major
self.minor = minor
self.patch = patch
if components.count > 1 {
self.prerelease = components[1]
} else {
self.prerelease = nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.major != rhs.major {
return lhs.major < rhs.major
} else if lhs.minor != rhs.minor {
return lhs.minor < rhs.minor
} else if lhs.patch != rhs.patch {
return lhs.patch < rhs.patch
} else {
if let lhsPrerelease = lhs.prerelease, let rhsPrerelease = rhs.prerelease {
return lhsPrerelease < rhsPrerelease
} else if lhs.prerelease != nil {
return true
} else {
return false
}
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.major == rhs.major && lhs.minor == rhs.minor && lhs.patch == rhs.patch && lhs.prerelease == rhs.prerelease
}
}
``` // Fatal error: Index out of rangeenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
guard let value = Int(components[0]) else { return nil }
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxLength = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxLength {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
guard let value = Int(components[0]) else { return nil }
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
```enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
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 let lhsVersion = Version(lhsComponent), let rhsVersion = Version(rhsComponent) {
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
} else {
if lhsComponent < rhsComponent {
return .orderedAscending
} else if lhsComponent > rhsComponent {
return .orderedDescending
}
}
}
return .orderedSame
}
struct Version: Comparable {
let value: Int
let isAlpha: Bool
let isBeta: Bool
init?(_ versionString: String) {
let components = versionString.components(separatedBy: "-")
if let value = Int(components[0]) {
self.value = value
self.isAlpha = components.contains("alpha")
self.isBeta = components.contains("beta")
} else {
return nil
}
}
static func < (lhs: Version, rhs: Version) -> Bool {
if lhs.isAlpha && !rhs.isAlpha {
return true
} else if lhs.isBeta && !rhs.isBeta {
return true
} else {
return lhs.value < rhs.value
}
}
static func == (lhs: Version, rhs: Version) -> Bool {
return lhs.value == rhs.value && lhs.isAlpha == rhs.isAlpha && lhs.isBeta == rhs.isBeta
}
}
``` // XCTAssertTrue failed