Metadata
| Key | Value |
|---|---|
| engine | modal |
| prompt | default |
| temp | 0.2 |
| top_p | 0.95 |
| max_new_tokens | 1024 |
| n_completions | 10 |
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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} 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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} 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 jsonDictionary = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDictionary
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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 jsonDictionary = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDictionary
} 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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} 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 result = json as? JSON else {
throw ParsingError.invalidInput
}
return result
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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 result = json as? JSON else {
throw ParsingError.invalidInput
}
return result
} 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)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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)
}
}
```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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} 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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} 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 result = json as? JSON else {
throw ParsingError.invalidInput
}
return result
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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 result = json as? JSON else {
throw ParsingError.invalidInput
}
return result
} 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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} catch {
throw ParsingError.internalError(error)
}
}Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures. ```swift
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
guard let result = json else {
throw ParsingError.invalidInput
}
return result
} 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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
print(generate(tree))
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>" ```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
let html = generate(tree)
print(html)
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var number = 0.0
var operation: Character?
var isNegative = false
for char in string {
if let digit = Int(String(char)) {
number = number * 10 + Double(digit)
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if let operation = operation {
let secondOperand = number
let firstOperand = stack.popLast()!
switch operation {
case "+":
number = firstOperand + secondOperand
case "-":
number = firstOperand - secondOperand
case "*":
number = firstOperand * secondOperand
case "/":
number = firstOperand / secondOperand
default:
break
}
}
stack.append(number)
number = 0
operation = char
isNegative = false
} else if char == "(" {
isNegative = true
} else if char == ")" {
if isNegative {
number = -number
isNegative = false
}
if let operation = operation {
let secondOperand = number
let firstOperand = stack.popLast()!
switch operation {
case "+":
number = firstOperand + secondOperand
case "-":
number = firstOperand - secondOperand
case "*":
number = firstOperand * secondOperand
case "/":
number = firstOperand / secondOperand
default:
break
}
operation = nil
}
} else {
throw CalculateError.invalidInput
}
}
if isNegative {
number = -number
}
if let operation = operation {
let secondOperand = number
let firstOperand = stack.popLast()!
switch operation {
case "+":
number = firstOperand + secondOperand
case "-":
number = firstOperand - secondOperand
case "*":
number = firstOperand * secondOperand
case "/":
number = firstOperand / secondOperand
default:
break
}
}
return number
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var number = 0.0
var operation: Character?
var isNegative = false
for char in string {
if let digit = Int(String(char)) {
number = number * 10 + Double(digit)
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if let operation = operation {
let secondOperand = number
let firstOperand = stack.popLast()!
switch operation {
case "+":
number = firstOperand + secondOperand
case "-":
number = firstOperand - secondOperand
case "*":
number = firstOperand * secondOperand
case "/":
number = firstOperand / secondOperand
default:
break
}
}
stack.append(number)
number = 0
operation = char
isNegative = false
} else if char == "(" {
isNegative = true
} else if char == ")" {
if isNegative {
number = -number
isNegative = false
}
if let operation = operation {
let secondOperand = number
let firstOperand = stack.popLast()!
switch operation {
case "+":
number = firstOperand + secondOperand
case "-":
number = firstOperand - secondOperand
case "*":
number = firstOperand * secondOperand
case "/":
number = firstOperand / secondOperand
default:
break
}
operation = nil
}
} else {
throw CalculateError.invalidInput
}
}
if isNegative {
number = -number
}
if let operation = operation {
let secondOperand = number
let firstOperand = stack.popLast()!
switch operation {
case "+":
number = firstOperand + secondOperand
case "-":
number = firstOperand - secondOperand
case "*":
number = firstOperand * secondOperand
case "/":
number = firstOperand / secondOperand
default:
break
}
}
return number
}
```operation = nil // cannot assign to value: 'operation' is a 'let' constantoperation = nil // 'nil' cannot be assigned to type 'Character'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var number = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/()".contains(char) {
if !number.isEmpty {
stack.append(Double(number)!)
number = ""
}
if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation(&stack, operation: lastOperation)
operationStack.removeLast()
}
operationStack.removeLast()
} else {
while let lastOperation = operationStack.last,
let lastOperationPrecedence = operations[lastOperation],
let currentOperationPrecedence = operations[char],
lastOperationPrecedence >= currentOperationPrecedence {
performOperation(&stack, operation: lastOperation)
operationStack.removeLast()
}
operationStack.append(char)
}
}
}
if !number.isEmpty {
stack.append(Double(number)!)
}
while let lastOperation = operationStack.popLast() {
performOperation(&stack, operation: lastOperation)
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func performOperation(_ stack: inout [Double], operation: Character) {
guard let secondOperand = stack.popLast(), let firstOperand = stack.popLast() else {
return
}
switch operation {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
stack.append(firstOperand / secondOperand)
default:
break
}
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var number = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/()".contains(char) {
if !number.isEmpty {
stack.append(Double(number)!)
number = ""
}
if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation(&stack, operation: lastOperation)
operationStack.removeLast()
}
operationStack.removeLast()
} else {
while let lastOperation = operationStack.last,
let lastOperationPrecedence = operations[lastOperation],
let currentOperationPrecedence = operations[char],
lastOperationPrecedence >= currentOperationPrecedence {
performOperation(&stack, operation: lastOperation)
operationStack.removeLast()
}
operationStack.append(char)
}
}
}
if !number.isEmpty {
stack.append(Double(number)!)
}
while let lastOperation = operationStack.popLast() {
performOperation(&stack, operation: lastOperation)
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func performOperation(_ stack: inout [Double], operation: Character) {
guard let secondOperand = stack.popLast(), let firstOperand = stack.popLast() else {
return
}
switch operation {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
stack.append(firstOperand / secondOperand)
default:
break
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
stack.append(Double(currentNumber)!)
currentNumber = ""
}
if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
let operation = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(operation, a, b))
}
operationStack.removeLast()
} else {
while let lastOperation = operationStack.last, operations[lastOperation]! >= operations[char]! {
let operation = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(operation, a, b))
}
operationStack.append(char)
}
} else {
throw CalculateError.invalidInput
}
}
if !currentNumber.isEmpty {
stack.append(Double(currentNumber)!)
}
while let operation = operationStack.popLast() {
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(operation, a, b))
}
return stack.first!
}
func applyOperation(_ operation: Character, _ a: Double, _ b: Double) -> Double {
switch operation {
case "+":
return a + b
case "-":
return a - b
case "*":
return a * b
case "/":
return a / b
default:
fatalError("Invalid operation: \(operation)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if "+-*/()".contains(char) {
if !currentNumber.isEmpty {
stack.append(Double(currentNumber)!)
currentNumber = ""
}
if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
let operation = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(operation, a, b))
}
operationStack.removeLast()
} else {
while let lastOperation = operationStack.last, operations[lastOperation]! >= operations[char]! {
let operation = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(operation, a, b))
}
operationStack.append(char)
}
} else {
throw CalculateError.invalidInput
}
}
if !currentNumber.isEmpty {
stack.append(Double(currentNumber)!)
}
while let operation = operationStack.popLast() {
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(operation, a, b))
}
return stack.first!
}
func applyOperation(_ operation: Character, _ a: Double, _ b: Double) -> Double {
switch operation {
case "+":
return a + b
case "-":
return a - b
case "*":
return a * b
case "/":
return a / b
default:
fatalError("Invalid operation: \(operation)")
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if "+-*/".contains(char) {
if let num = Double(currentNumber) {
stack.append(num)
currentNumber = ""
}
while let lastOperation = operationStack.last, operations[lastOperation] ?? 0 >= operations[char] ?? 0 {
let op = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+": stack.append(a + b)
case "-": stack.append(a - b)
case "*": stack.append(a * b)
case "/": stack.append(a / b)
default: break
}
}
operationStack.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
let op = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+": stack.append(a + b)
case "-": stack.append(a - b)
case "*": stack.append(a * b)
case "/": stack.append(a / b)
default: break
}
}
operationStack.removeLast()
}
}
if let num = Double(currentNumber) {
stack.append(num)
}
while let op = operationStack.popLast() {
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+": stack.append(a + b)
case "-": stack.append(a - b)
case "*": stack.append(a * b)
case "/": stack.append(a / b)
default: break
}
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if "+-*/".contains(char) {
if let num = Double(currentNumber) {
stack.append(num)
currentNumber = ""
}
while let lastOperation = operationStack.last, operations[lastOperation] ?? 0 >= operations[char] ?? 0 {
let op = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+": stack.append(a + b)
case "-": stack.append(a - b)
case "*": stack.append(a * b)
case "/": stack.append(a / b)
default: break
}
}
operationStack.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
let op = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+": stack.append(a + b)
case "-": stack.append(a - b)
case "*": stack.append(a * b)
case "/": stack.append(a / b)
default: break
}
}
operationStack.removeLast()
}
}
if let num = Double(currentNumber) {
stack.append(num)
}
while let op = operationStack.popLast() {
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+": stack.append(a + b)
case "-": stack.append(a - b)
case "*": stack.append(a * b)
case "/": stack.append(a / b)
default: break
}
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
``` // Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var number = 0.0
var operation: Character = "+"
for char in string {
if let digit = Int(String(char)) {
number = number * 10 + Double(digit)
} else if "+-*/".contains(char) {
switch operation {
case "+":
stack.append(number)
case "-":
stack.append(-number)
case "*":
stack.append(stack.removeLast() * number)
case "/":
stack.append(stack.removeLast() / number)
default:
break
}
number = 0
operation = char
} else if char == "(" {
stack.append(try calculate(String(string.dropFirst())))
} else if char == ")" {
break
} else {
throw CalculateError.invalidInput
}
}
switch operation {
case "+":
stack.append(number)
case "-":
stack.append(-number)
case "*":
stack.append(stack.removeLast() * number)
case "/":
stack.append(stack.removeLast() / number)
default:
break
}
return stack.reduce(0, +)
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var number = 0.0
var operation: Character = "+"
for char in string {
if let digit = Int(String(char)) {
number = number * 10 + Double(digit)
} else if "+-*/".contains(char) {
switch operation {
case "+":
stack.append(number)
case "-":
stack.append(-number)
case "*":
stack.append(stack.removeLast() * number)
case "/":
stack.append(stack.removeLast() / number)
default:
break
}
number = 0
operation = char
} else if char == "(" {
stack.append(try calculate(String(string.dropFirst())))
} else if char == ")" {
break
} else {
throw CalculateError.invalidInput
}
}
switch operation {
case "+":
stack.append(number)
case "-":
stack.append(-number)
case "*":
stack.append(stack.removeLast() * number)
case "/":
stack.append(stack.removeLast() / number)
default:
break
}
return stack.reduce(0, +)
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789.")
let invalidCharacters = CharacterSet(charactersIn: string).subtracting(validCharacters)
if invalidCharacters.isEmpty == false {
throw CalculateError.invalidInput
}
let expression = NSExpression(format: string)
if let result = expression.expressionValue(with: nil, context: nil) as? Double {
return result
}
throw CalculateError.invalidInput
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789.")
let invalidCharacters = CharacterSet(charactersIn: string).subtracting(validCharacters)
if invalidCharacters.isEmpty == false {
throw CalculateError.invalidInput
}
let expression = NSExpression(format: string)
if let result = expression.expressionValue(with: nil, context: nil) as? Double {
return result
}
throw CalculateError.invalidInput
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789.")
let invalidCharacter = string.unicodeScalars.first(where: { !validCharacters.contains($0) })
if invalidCharacter != nil {
throw CalculateError.invalidInput
}
let expression = NSExpression(format: string)
let result = expression.expressionValue(with: nil, context: nil) as? Double
return result ?? 0.0
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789.")
let invalidCharacter = string.unicodeScalars.first(where: { !validCharacters.contains($0) })
if invalidCharacter != nil {
throw CalculateError.invalidInput
}
let expression = NSExpression(format: string)
let result = expression.expressionValue(with: nil, context: nil) as? Double
return result ?? 0.0
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var number = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/()".contains(char) {
if !number.isEmpty {
stack.append(Double(number)!)
number = ""
}
if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation(stack: &stack, operationStack: &operationStack)
}
operationStack.removeLast()
} else {
while let lastOperation = operationStack.last, operations[lastOperation]! >= operations[char]! {
performOperation(stack: &stack, operationStack: &operationStack)
}
operationStack.append(char)
}
}
}
if !number.isEmpty {
stack.append(Double(number)!)
}
while !operationStack.isEmpty {
performOperation(stack: &stack, operationStack: &operationStack)
}
return stack.first ?? 0
}
func performOperation(stack: inout [Double], operationStack: inout [Character]) {
let operation = operationStack.removeLast()
let right = stack.removeLast()
let left = stack.removeLast()
switch operation {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
stack.append(left / right)
default:
break
}
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var number = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/()".contains(char) {
if !number.isEmpty {
stack.append(Double(number)!)
number = ""
}
if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation(stack: &stack, operationStack: &operationStack)
}
operationStack.removeLast()
} else {
while let lastOperation = operationStack.last, operations[lastOperation]! >= operations[char]! {
performOperation(stack: &stack, operationStack: &operationStack)
}
operationStack.append(char)
}
}
}
if !number.isEmpty {
stack.append(Double(number)!)
}
while !operationStack.isEmpty {
performOperation(stack: &stack, operationStack: &operationStack)
}
return stack.first ?? 0
}
func performOperation(stack: inout [Double], operationStack: inout [Character]) {
let operation = operationStack.removeLast()
let right = stack.removeLast()
let left = stack.removeLast()
switch operation {
case "+":
stack.append(left + right)
case "-":
stack.append(left - right)
case "*":
stack.append(left * right)
case "/":
stack.append(left / right)
default:
break
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var number = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/".contains(char) {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let lastOperation = operationStack.last, operations[lastOperation] ?? 0 >= operations[char] ?? 0 {
let op = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
break
}
}
operationStack.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
let op = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
break
}
}
operationStack.removeLast()
}
}
if let num = Double(number) {
stack.append(num)
}
while let op = operationStack.popLast() {
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
break
}
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var number = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/".contains(char) {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let lastOperation = operationStack.last, operations[lastOperation] ?? 0 >= operations[char] ?? 0 {
let op = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
break
}
}
operationStack.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
let op = operationStack.removeLast()
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
break
}
}
operationStack.removeLast()
}
}
if let num = Double(number) {
stack.append(num)
}
while let op = operationStack.popLast() {
let b = stack.removeLast()
let a = stack.removeLast()
switch op {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
break
}
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
``` // Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var number = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/()".contains(char) {
if !number.isEmpty {
stack.append(Double(number)!)
number = ""
}
if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.popLast(), lastOperation != "(" {
let b = stack.popLast()!
let a = stack.popLast()!
stack.append(applyOperation(a, b, lastOperation))
}
} else {
while let lastOperation = operationStack.last, operations[lastOperation]! >= operations[char]! {
let b = stack.popLast()!
let a = stack.popLast()!
operationStack.removeLast()
stack.append(applyOperation(a, b, lastOperation))
}
operationStack.append(char)
}
}
}
if !number.isEmpty {
stack.append(Double(number)!)
}
while let operation = operationStack.popLast() {
let b = stack.popLast()!
let a = stack.popLast()!
stack.append(applyOperation(a, b, operation))
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
func applyOperation(_ a: Double, _ b: Double, _ operation: Character) -> Double {
switch operation {
case "+":
return a + b
case "-":
return a - b
case "*":
return a * b
case "/":
return a / b
default:
fatalError("Invalid operation: \(operation)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2". ```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var operationStack = [Character]()
var number = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/()".contains(char) {
if !number.isEmpty {
stack.append(Double(number)!)
number = ""
}
if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.popLast(), lastOperation != "(" {
let b = stack.popLast()!
let a = stack.popLast()!
stack.append(applyOperation(a, b, lastOperation))
}
} else {
while let lastOperation = operationStack.last, operations[lastOperation]! >= operations[char]! {
let b = stack.popLast()!
let a = stack.popLast()!
operationStack.removeLast()
stack.append(applyOperation(a, b, lastOperation))
}
operationStack.append(char)
}
}
}
if !number.isEmpty {
stack.append(Double(number)!)
}
while let operation = operationStack.popLast() {
let b = stack.popLast()!
let a = stack.popLast()!
stack.append(applyOperation(a, b, operation))
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
func applyOperation(_ a: Double, _ b: Double, _ operation: Character) -> Double {
switch operation {
case "+":
return a + b
case "-":
return a - b
case "*":
return a * b
case "/":
return a / b
default:
fatalError("Invalid operation: \(operation)")
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valuefunc execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
process.standardOutput = outputPipe
process.standardError = errorPipe
do {
try process.run()
process.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
process.standardOutput = outputPipe
process.standardError = errorPipe
do {
try process.run()
process.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
process.standardOutput = outputPipe
process.standardError = errorPipe
do {
try process.run()
process.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
process.standardOutput = outputPipe
process.standardError = errorPipe
do {
try process.run()
process.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
task.standardOutput = stdoutPipe
task.standardError = stderrPipe
do {
try task.run()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
task.standardOutput = stdoutPipe
task.standardError = stderrPipe
do {
try task.run()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding: .utf8) ?? ""
let stderr = String(data: stderrData, encoding: .utf8) ?? ""
return (stdout, stderr)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error.localizedDescription)")
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error executing binary: \(error)")
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error: \(error.localizedDescription)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error: \(error.localizedDescription)")
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error: \(error.localizedDescription)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error: \(error.localizedDescription)")
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
process.standardOutput = outputPipe
process.standardError = errorPipe
do {
try process.run()
process.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error: \(error.localizedDescription)")
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr. ```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
process.standardOutput = outputPipe
process.standardError = errorPipe
do {
try process.run()
process.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", "Error: \(error.localizedDescription)")
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = 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
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = 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
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = 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
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations. ```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache: [T: U] = [:]
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing. ```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key] as? () -> T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key] as? () -> T
}
}
```return factories[key] as? () -> T // cannot convert return expression of type '(() -> T)?' to return type 'T?'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key] as? () -> T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key] as? () -> T
}
}
```return factories[key] as? () -> T // cannot convert return expression of type '(() -> T)?' to return type 'T?'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```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
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
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
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key] as? () -> T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key] as? () -> T
}
}
```return factories[key] as? () -> T // cannot convert return expression of type '(() -> T)?' to return type '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
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
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
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key] as? () -> T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key] as? () -> T
}
}
```return factories[key] as? () -> T // cannot convert return expression of type '(() -> T)?' to return type 'T?'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return factories[key]?() as? T
}
}
```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
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container. ```swift
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
}
}
```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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions.first(where: { $0.0 == state && $0.1 == event })?.2 {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions.first(where: { $0.0 == state && $0.1 == event })?.2 {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions.first(where: { $0.0 == state && $0.1 == event })?.2 {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions.first(where: { $0.0 == state && $0.1 == event })?.2 {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions.first(where: { $0.0 == state && $0.1 == event })?.2 {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions.first(where: { $0.0 == state && $0.1 == event })?.2 {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, event, to))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states. ```swift
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 {
var state: State
private var transitions: [(State, Event, State)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.0 == state && $0.1 == event }) {
state = transition.2
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesreturn 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect 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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect 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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect 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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect 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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect 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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesreturn 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesreturn 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect 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 _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth. ```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var storage: [Element] = []
init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var storage: [Element] = []
init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.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<T>: StackProtocol {
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'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()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol 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()
}
}
```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] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol 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()
}
}
```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 storage: [Element] = []
init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var storage: [Element] = []
init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.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<T>: StackProtocol {
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var storage: [Element] = []
init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var storage: [Element] = []
init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.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] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol 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()
}
}
```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 storage: [Element] = []
init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var storage: [Element] = []
init() {}
func push(_ element: Element) {
storage.append(element)
}
func pop() -> Element? {
return storage.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]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions. ```swift
protocol 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()
}
}
```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 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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
```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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
```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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
```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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
```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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
```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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache.count >= capacity, let leastRecentlyUsedKey = lru.removeFirst() {
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll(where: { $0 == key })
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache.count >= capacity, let leastRecentlyUsedKey = lru.removeFirst() {
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll(where: { $0 == key })
}
}
}
}
```if cache.count >= capacity, let leastRecentlyUsedKey = lru.removeFirst() { // initializer for conditional binding must have Optional type, not 'Key'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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
```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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
```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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key) else { return nil }
lru.remove(at: index)
lru.append(key)
return cache[key]
}
set {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
}
lru.append(key)
cache[key] = newValue
if lru.count > capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
```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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let newValue = newValue {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
} else if lru.count == capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll(where: { $0 == key })
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries. ```swift
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let newValue = newValue {
if let index = lru.firstIndex(of: key) {
lru.remove(at: index)
} else if lru.count == capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll(where: { $0 == key })
}
}
}
}
```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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} else {
cache[key] = nil
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} 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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} else {
cache[key] = nil
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} 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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache[key] = nil
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} 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 (value, expiration) = cache[key], expiration > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 0)
} else {
cache[key] = nil
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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 (value, expiration) = cache[key], expiration > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, 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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} else {
cache.removeValue(forKey: key)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} else {
cache[key] = nil
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} 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 (value, expiration) = cache[key], expiration > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 0)
} else {
cache[key] = nil
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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 (value, expiration) = cache[key], expiration > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, 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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 3600) // Default expiration is 1 hour
} else {
cache[key] = nil
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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, 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 (value, expirationDate) = cache[key], expirationDate > Date() else {
cache[key] = nil
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 3600) // Default expiration is 1 hour
} 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: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().timeIntervalSince1970 + expiration
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else {
return nil
}
if Date().timeIntervalSince1970 > expiration {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 0)
} else {
cache.removeValue(forKey: key)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().timeIntervalSince1970 + expiration
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else {
return nil
}
if Date().timeIntervalSince1970 > expiration {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 0)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, Date().timeIntervalSince1970 + expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else {
return nil
}
if Date().timeIntervalSince1970 > expiration {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access. ```swift
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: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, Date().timeIntervalSince1970 + expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else {
return nil
}
if Date().timeIntervalSince1970 > expiration {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let stringData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: stringData.count)
for i in 0..<stringData.count {
encryptedData[i] = stringData[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let stringData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: stringData.count)
for i in 0..<stringData.count {
encryptedData[i] = stringData[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let stringData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: stringData.count)
for i in 0..<stringData.count {
encryptedData[i] = stringData[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let stringData = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: stringData.count)
for i in 0..<stringData.count {
encryptedData[i] = stringData[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, 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 {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol. ```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol 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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - 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().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
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().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - 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 requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
// Remove old requests
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
// Check if new request can be made
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
// Remove old requests
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
// Check if new request can be made
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 requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - 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 requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - 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 requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - 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().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits. ```swift
protocol 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().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - 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 ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int
lock.lock()
value = counter
lock.unlock()
return value
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int
lock.lock()
value = counter
lock.unlock()
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
lock.lock()
defer {
lock.unlock()
}
return value
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
lock.lock()
defer {
lock.unlock()
}
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private let queue = DispatchQueue(label: "com.example.counter", attributes: .concurrent)
private var value: Int
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var currentValue: Int!
queue.sync {
currentValue = self.value
}
return currentValue
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private let queue = DispatchQueue(label: "com.example.counter", attributes: .concurrent)
private var value: Int
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var currentValue: Int!
queue.sync {
currentValue = self.value
}
return currentValue
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private let lock = NSLock()
required init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
var value: Int = 0
lock.lock()
value = counter
lock.unlock()
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int = 0
lock.lock()
currentValue = value
lock.unlock()
return currentValue
}
}Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations. ```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int = 0
lock.lock()
currentValue = value
lock.unlock()
return currentValue
}
}
```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
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```transformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```transformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```transformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```transformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```transformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let pipeline = Pipeline<U>(value: transform(value))
pipeline.transformations = transformations.map { transform in { transform(transform($0)) } }
return pipeline
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let pipeline = Pipeline<U>(value: transform(value))
pipeline.transformations = transformations.map { transform in { transform(transform($0)) } }
return pipeline
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```pipeline.transformations = transformations.map { transform in { transform(transform($0)) } } // cannot convert value of type '()' to closure result type '(U) -> U'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result: Any = value
for transform in transformations {
result = transform(result as! T)
}
return result as! T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result: Any = value
for transform in transformations {
result = transform(result as! T)
}
return result as! T
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result: Any = value
for transform in transformations {
result = transform(result as! T)
}
return result as! T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result: Any = value
for transform in transformations {
result = transform(result as! T)
}
return result as! T
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result: Any = value
for transformation in transformations {
result = transformation(result as! T)
}
return result as! T
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result: Any = value
for transformation in transformations {
result = transformation(result as! T)
}
return result as! T
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as Any }
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result = value
for transform in transformations {
result = transform(result) as! T
}
return result
}
}Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value. ```swift
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
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as Any }
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result = value
for transform in transformations {
result = transform(result) as! T
}
return result
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { return _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { return _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<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 {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<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 {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<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 {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<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 {
private var observers = [UUID: (Value) -> Void]()
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers = [UUID: (Value) -> Void]()
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<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 {
private var observers = [UUID: (Value) -> Void]()
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
required init(value: Value) {
self._value = value
}
var value: Value {
get { return _value }
set { _value = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers = [UUID: (Value) -> Void]()
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
required init(value: Value) {
self._value = value
}
var value: Value {
get { return _value }
set { _value = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
var value: Value {
get { _value }
set { _value = newValue }
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<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 {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
required init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value {
didSet {
observers.values.forEach { $0(self._value) }
}
}
required init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```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 {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
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 {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```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 {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes. ```swift
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 {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}
```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 = wrappedValue.clamped(to: range)
}
var wrappedValue: Value {
get { value }
set { value = newValue.clamped(to: range) }
}
}
extension Comparable {
func clamped(to range: ClosedRange<Self>) -> Self {
return min(max(self, range.lowerBound), range.upperBound)
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
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 = wrappedValue.clamped(to: range)
}
var wrappedValue: Value {
get { value }
set { value = newValue.clamped(to: range) }
}
}
extension Comparable {
func clamped(to range: ClosedRange<Self>) -> Self {
return min(max(self, 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>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
self.wrappedValue = wrappedValue
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
self.wrappedValue = wrappedValue
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
self.wrappedValue = wrappedValue
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
self.wrappedValue = wrappedValue
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
self.wrappedValue = wrappedValue
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
self.wrappedValue = wrappedValue
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = min(max(wrappedValue, range.lowerBound), range.upperBound)
self.range = range
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
self.wrappedValue = wrappedValue
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range. ```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
self.wrappedValue = wrappedValue
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```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 {
logger(.set, newValue)
value = newValue
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
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 {
logger(.set, newValue)
value = 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
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```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 {
logger(.set, newValue)
value = newValue
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
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 {
logger(.set, newValue)
value = 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
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```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 {
logger(.set, newValue)
value = newValue
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
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 {
logger(.set, newValue)
value = 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
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```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 {
logger(.set, newValue)
value = newValue
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
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 {
logger(.set, newValue)
value = 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 {
logger(.set, newValue)
value = newValue
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
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 {
logger(.set, newValue)
value = 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
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property. ```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}
```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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}
```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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}
```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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}
```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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
return nil
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}
```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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
return nil
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
}
}
```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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
return nil
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
return nil
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
return nil
}
}Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast. ```swift
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 searchText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Invalid deposit amount")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Invalid withdrawal amount")
return false
}
guard balance >= amount else {
print("Insufficient balance")
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Invalid deposit amount")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Invalid withdrawal amount")
return false
}
guard balance >= amount else {
print("Insufficient balance")
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount <= balance else {
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount <= balance else {
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient balance.")
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient balance.")
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard balance >= amount else {
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard balance >= amount else {
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Invalid deposit amount")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Invalid withdrawal amount")
return false
}
guard balance >= amount else {
print("Insufficient balance")
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Invalid deposit amount")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Invalid withdrawal amount")
return false
}
guard balance >= amount else {
print("Insufficient balance")
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient funds.")
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient funds.")
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient balance.")
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient balance.")
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Invalid deposit amount")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Invalid withdrawal amount")
return false
}
guard balance >= amount else {
print("Insufficient funds")
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Invalid deposit amount")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Invalid withdrawal amount")
return false
}
guard balance >= amount else {
print("Insufficient funds")
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient balance.")
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient balance.")
return false
}
balance -= amount
return true
}
}
```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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient balance.")
return false
}
balance -= amount
return true
}
}Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic. ```swift
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(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) {
guard amount > 0 else {
print("Deposit amount must be greater than zero.")
return
}
balance += amount
}
func withdraw(amount: Double) -> Bool {
guard amount > 0 else {
print("Withdrawal amount must be greater than zero.")
return false
}
guard balance >= amount else {
print("Insufficient balance.")
return false
}
balance -= amount
return true
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if let cachedValue = value, condition() {
return cachedValue
} else {
let newValue = wrappedValue()
value = newValue
return newValue
}
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if let cachedValue = value, condition() {
return cachedValue
} else {
let newValue = wrappedValue()
value = newValue
return newValue
}
}
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
private var lastCondition: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
let currentCondition = condition()
if lastCondition != currentCondition || value == nil {
value = wrappedValue()
lastCondition = currentCondition
}
return value!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
private var lastCondition: Bool?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
let currentCondition = condition()
if lastCondition != currentCondition || value == nil {
value = wrappedValue()
lastCondition = currentCondition
}
return value!
}
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}
```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 value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes. ```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if value == nil || condition() {
value = wrappedValue()
}
return value!
}
}
}
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'value = wrappedValue() // cannot assign to property: 'self' is immutableinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}
```let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}
```let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}
```let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}
```let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>><A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>><A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}
```let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { a in
f(g(a))
}
}
```let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { a in
g(f(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { a in
g(f(a))
}
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>><A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { a in
g(f(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>><A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { a in
g(f(a))
}
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { a in
g(f(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { a in
g(f(a))
}
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { a in
g(f(a))
}
}Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function). ```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { a in
g(f(a))
}
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer {
inputStream.close()
}
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let readDataCount = inputStream.read(buffer, maxLength: bufferSize)
if readDataCount < 0 {
return nil
}
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readDataCount))
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer {
inputStream.close()
}
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let readDataCount = inputStream.read(buffer, maxLength: bufferSize)
if readDataCount < 0 {
return nil
}
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readDataCount))
}
return hasher.finalize()
}
```hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readDataCount)) // incorrect argument label in call (have 'buffer:', expected 'data:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readBytesCount = inputStream.read(buffer, maxLength: bufferSize)
if readBytesCount < 0 {
// Handle error
return nil
}
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readBytesCount))
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readBytesCount = inputStream.read(buffer, maxLength: bufferSize)
if readBytesCount < 0 {
// Handle error
return nil
}
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readBytesCount))
}
return hasher.finalize()
}
```hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readBytesCount)) // incorrect argument label in call (have 'buffer:', expected 'data:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readCount = inputStream.read(&buffer, maxLength: bufferSize)
if readCount < 0 {
return nil
}
hasher.update(data: Data(buffer[0..<readCount]))
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readCount = inputStream.read(&buffer, maxLength: bufferSize)
if readCount < 0 {
return nil
}
hasher.update(data: Data(buffer[0..<readCount]))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
inputStream.open()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let readBytesCount = inputStream.read(buffer, maxLength: bufferSize)
if readBytesCount < 0 {
// Handle error
return nil
} else if readBytesCount == 0 {
// No more data to read
break
} else {
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readBytesCount))
}
}
inputStream.close()
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
inputStream.open()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let readBytesCount = inputStream.read(buffer, maxLength: bufferSize)
if readBytesCount < 0 {
// Handle error
return nil
} else if readBytesCount == 0 {
// No more data to read
break
} else {
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readBytesCount))
}
}
inputStream.close()
return hasher.finalize()
}
```hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readBytesCount)) // incorrect argument label in call (have 'buffer:', expected 'data:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer {
inputStream.close()
}
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let readCount = inputStream.read(buffer, maxLength: bufferSize)
if readCount < 0 {
return nil
}
hasher.update(buffer: UnsafeRawBufferPointer(start: buffer, count: readCount))
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer {
inputStream.close()
}
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let readCount = inputStream.read(buffer, maxLength: bufferSize)
if readCount < 0 {
return nil
}
hasher.update(buffer: UnsafeRawBufferPointer(start: buffer, count: readCount))
}
return hasher.finalize()
}
```hasher.update(buffer: UnsafeRawBufferPointer(start: buffer, count: readCount)) // incorrect argument label in call (have 'buffer:', expected 'bufferPointer:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer {
inputStream.close()
}
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let readDataCount = inputStream.read(buffer, maxLength: bufferSize)
if readDataCount < 0 {
return nil
}
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readDataCount))
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
inputStream.open()
defer {
inputStream.close()
}
var hasher = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
}
while inputStream.hasBytesAvailable {
let readDataCount = inputStream.read(buffer, maxLength: bufferSize)
if readDataCount < 0 {
return nil
}
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readDataCount))
}
return hasher.finalize()
}
```hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readDataCount)) // incorrect argument label in call (have 'buffer:', expected 'data:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
inputStream.open()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readCount = inputStream.read(buffer, maxLength: bufferSize)
if readCount < 0 {
return nil
}
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readCount))
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
inputStream.open()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer {
buffer.deallocate()
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readCount = inputStream.read(buffer, maxLength: bufferSize)
if readCount < 0 {
return nil
}
hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readCount))
}
return hasher.finalize()
}
```hasher.update(buffer: UnsafeBufferPointer(start: buffer, count: readCount)) // incorrect argument label in call (have 'buffer:', expected 'data:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readBytesCount = inputStream.read(&buffer, maxLength: bufferSize)
if readBytesCount < 0 {
return nil
}
hasher.update(data: Data(buffer[0..<readBytesCount]))
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readBytesCount = inputStream.read(&buffer, maxLength: bufferSize)
if readBytesCount < 0 {
return nil
}
hasher.update(data: Data(buffer[0..<readBytesCount]))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readBytesCount = inputStream.read(&buffer, maxLength: bufferSize)
if readBytesCount < 0 {
return nil
}
hasher.update(data: Data(buffer[0..<readBytesCount]))
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let readBytesCount = inputStream.read(&buffer, maxLength: bufferSize)
if readBytesCount < 0 {
return nil
}
hasher.update(data: Data(buffer[0..<readBytesCount]))
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead < 0 {
// Handle error
return nil
} else if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
}
}
return hasher.finalize()
}Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework. ```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
inputStream.open()
defer {
inputStream.close()
}
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead < 0 {
// Handle error
return nil
} else if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<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 array = Array(tuple16)
if let index = array.firstIndex(of: 0) {
self.init(bytes: array[0..<index], encoding: .utf8)!
} else {
self.init(bytes: array, encoding: .utf8)!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
if let index = array.firstIndex(of: 0) {
self.init(bytes: array[0..<index], encoding: .utf8)!
} else {
self.init(bytes: array, encoding: .utf8)!
}
}
}
```let array = Array(tuple16) // 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 data = Data(bytes: tuple16)
if let nullTerminatedString = String(data: data, encoding: .utf8) {
self = String(nullTerminatedString.split(separator: "\0").first ?? "")
} else {
self = ""
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let nullTerminatedString = String(data: data, encoding: .utf8) {
self = String(nullTerminatedString.split(separator: "\0").first ?? "")
} else {
self = ""
}
}
}
```let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
let nullTerminatedArray = array.prefix(while: { $0 != 0 })
self.init(bytes: nullTerminatedArray, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
let nullTerminatedArray = array.prefix(while: { $0 != 0 })
self.init(bytes: nullTerminatedArray, encoding: .utf8)!
}
}
```let array = Array(tuple16) // 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 array = Array(tuple16)
let nullTerminatedArray = array.prefix(while: { $0 != 0 })
self.init(bytes: nullTerminatedArray, encoding: .utf8)!
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
let nullTerminatedArray = array.prefix(while: { $0 != 0 })
self.init(bytes: nullTerminatedArray, encoding: .utf8)!
}
}
```let array = Array(tuple16) // 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 data = Data(bytes: tuple16)
if let nullRange = data.range(of: Data([0])) {
self.init(data: data.subdata(in: 0..<nullRange.lowerBound))
} else {
self.init(data: data, encoding: .utf8) ?? ""
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let nullRange = data.range(of: Data([0])) {
self.init(data: data.subdata(in: 0..<nullRange.lowerBound))
} else {
self.init(data: data, encoding: .utf8) ?? ""
}
}
}
```let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'self.init(data: data.subdata(in: 0..<nullRange.lowerBound)) // missing argument for parameter 'encoding' in callself.init(data: data, encoding: .utf8) ?? "" // cannot convert value of type 'String' to expected argument type '()'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let nullIndex = data.firstIndex(of: 0) {
self.init(data: data[..<nullIndex])
} else {
self.init(data: data, encoding: .utf8) ?? ""
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let nullIndex = data.firstIndex(of: 0) {
self.init(data: data[..<nullIndex])
} else {
self.init(data: data, encoding: .utf8) ?? ""
}
}
}
```let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'self.init(data: data[..<nullIndex]) // missing argument for parameter 'encoding' in callself.init(data: data, encoding: .utf8) ?? "" // cannot convert value of type 'String' to expected argument type '()'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let nullIndex = data.firstIndex(of: 0) {
self.init(data: data[..<nullIndex])
} else {
self.init(data: data, encoding: .utf8) ?? ""
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let nullIndex = data.firstIndex(of: 0) {
self.init(data: data[..<nullIndex])
} else {
self.init(data: data, encoding: .utf8) ?? ""
}
}
}
```let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'self.init(data: data[..<nullIndex]) // missing argument for parameter 'encoding' in callself.init(data: data, encoding: .utf8) ?? "" // cannot convert value of type 'String' to expected argument type '()'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
if let index = array.firstIndex(of: 0) {
self.init(bytes: array[0..<index], encoding: .utf8)!
} else {
self.init(bytes: array, encoding: .utf8)!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
if let index = array.firstIndex(of: 0) {
self.init(bytes: array[0..<index], encoding: .utf8)!
} else {
self.init(bytes: array, encoding: .utf8)!
}
}
}
```let array = Array(tuple16) // 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 data = Data(bytes: tuple16)
if let nullRange = data.range(of: Data([0])) {
self.init(data: data.subdata(in: 0..<nullRange.lowerBound))
} else {
self.init(data: data, encoding: .utf8) ?? ""
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let nullRange = data.range(of: Data([0])) {
self.init(data: data.subdata(in: 0..<nullRange.lowerBound))
} else {
self.init(data: data, encoding: .utf8) ?? ""
}
}
}
```let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'self.init(data: data.subdata(in: 0..<nullRange.lowerBound)) // missing argument for parameter 'encoding' in callself.init(data: data, encoding: .utf8) ?? "" // cannot convert value of type 'String' to expected argument type '()'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
if let index = array.firstIndex(of: 0) {
self.init(bytes: array[0..<index], encoding: .utf8)!
} else {
self.init(bytes: array, encoding: .utf8)!
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string. ```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
if let index = array.firstIndex(of: 0) {
self.init(bytes: array[0..<index], encoding: .utf8)!
} else {
self.init(bytes: array, encoding: .utf8)!
}
}
}
```let array = Array(tuple16) // no exact matches in call to initializerimport 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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
return lhsData == rhsData
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
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
}
var equal = true
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
if let lhsBytes = lhsBaseAddress?.assumingMemoryBound(to: UInt8.self),
let rhsBytes = rhsBaseAddress?.assumingMemoryBound(to: UInt8.self) {
let bufferSize = CVPixelBufferGetDataSize(lhs)
for i in 0..<bufferSize {
if lhsBytes[i] != rhsBytes[i] {
equal = false
break
}
}
}
return equal
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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
}
var equal = true
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
if let lhsBytes = lhsBaseAddress?.assumingMemoryBound(to: UInt8.self),
let rhsBytes = rhsBaseAddress?.assumingMemoryBound(to: UInt8.self) {
let bufferSize = CVPixelBufferGetDataSize(lhs)
for i in 0..<bufferSize {
if lhsBytes[i] != rhsBytes[i] {
equal = false
break
}
}
}
return equal
}
```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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
return lhsData == rhsData
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
return lhsData == rhsData
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
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)
}
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let width = CVPixelBufferGetWidth(lhs)
let height = CVPixelBufferGetHeight(lhs)
for y in 0..<height {
for x in 0..<width {
let lhsIndex = y * lhsBytesPerRow + x * MemoryLayout<UInt8>.size
let rhsIndex = y * rhsBytesPerRow + x * MemoryLayout<UInt8>.size
if lhsBaseAddress.load(fromByteOffset: lhsIndex, as: UInt8.self) != rhsBaseAddress.load(fromByteOffset: rhsIndex, as: UInt8.self) {
return false
}
}
}
return true
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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)
}
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let width = CVPixelBufferGetWidth(lhs)
let height = CVPixelBufferGetHeight(lhs)
for y in 0..<height {
for x in 0..<width {
let lhsIndex = y * lhsBytesPerRow + x * MemoryLayout<UInt8>.size
let rhsIndex = y * rhsBytesPerRow + x * MemoryLayout<UInt8>.size
if lhsBaseAddress.load(fromByteOffset: lhsIndex, as: UInt8.self) != rhsBaseAddress.load(fromByteOffset: rhsIndex, as: UInt8.self) {
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
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let width = CVPixelBufferGetWidth(lhs)
let height = CVPixelBufferGetHeight(lhs)
for y in 0..<height {
for x in 0..<width {
let lhsIndex = y * lhsBytesPerRow + x * 4
let rhsIndex = y * rhsBytesPerRow + x * 4
if memcmp(lhsBaseAddress.advanced(by: lhsIndex), rhsBaseAddress.advanced(by: rhsIndex), 4) != 0 {
return false
}
}
}
return true
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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)
}
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let width = CVPixelBufferGetWidth(lhs)
let height = CVPixelBufferGetHeight(lhs)
for y in 0..<height {
for x in 0..<width {
let lhsIndex = y * lhsBytesPerRow + x * 4
let rhsIndex = y * rhsBytesPerRow + x * 4
if memcmp(lhsBaseAddress.advanced(by: lhsIndex), rhsBaseAddress.advanced(by: rhsIndex), 4) != 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
}
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
return lhsData == rhsData
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
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)
}
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
let lhsData = Data(bytes: lhsBaseAddress, count: lhsBytesPerRow * height)
let rhsData = Data(bytes: rhsBaseAddress, count: rhsBytesPerRow * height)
return lhsData == rhsData
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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)
}
guard let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs),
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs) else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let height = CVPixelBufferGetHeight(lhs)
let lhsData = Data(bytes: lhsBaseAddress, count: lhsBytesPerRow * height)
let rhsData = Data(bytes: rhsBaseAddress, count: rhsBytesPerRow * height)
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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
return lhsData == rhsData
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
return lhsData == rhsData
}Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content. ```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 lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * CVPixelBufferGetHeight(lhs))
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * CVPixelBufferGetHeight(rhs))
return lhsData == rhsData
}
```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 {
$0.bindMemory(to: PublicItem.self).baseAddress!
}.assumingMemoryBound(to: PublicItem.self)
.prefix(items.count)
.map { $0 }
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
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 {
$0.bindMemory(to: PublicItem.self).baseAddress!
}.assumingMemoryBound(to: PublicItem.self)
.prefix(items.count)
.map { $0 }
}
```}.assumingMemoryBound(to: PublicItem.self) // value of type 'UnsafePointer<PublicItem>' has no member 'assumingMemoryBound'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
_ = items.withUnsafeBytes { privateBuffer in
buffer.initialize(from: privateBuffer)
}
return Array(buffer)
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
_ = items.withUnsafeBytes { privateBuffer in
buffer.initialize(from: privateBuffer)
}
return Array(buffer)
}
```buffer.initialize(from: privateBuffer) // instance method 'initialize(from:)' requires the types 'PublicItem' and 'UnsafeRawBufferPointer.Element' (aka 'UInt8') be equivalentstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes {
$0.bindMemory(to: PublicItem.self).baseAddress!
}.assumingMemoryBound(to: PublicItem.self)
.prefix(items.count)
.map { $0 }
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
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 {
$0.bindMemory(to: PublicItem.self).baseAddress!
}.assumingMemoryBound(to: PublicItem.self)
.prefix(items.count)
.map { $0 }
}
```}.assumingMemoryBound(to: PublicItem.self) // value of type 'UnsafePointer<PublicItem>' has no member 'assumingMemoryBound'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
_ = items.withUnsafeBytes { privateBytes in
buffer.initialize(from: privateBytes.baseAddress!.assumingMemoryBound(to: PublicItem.self), count: items.count)
}
return Array(buffer)
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
_ = items.withUnsafeBytes { privateBytes in
buffer.initialize(from: privateBytes.baseAddress!.assumingMemoryBound(to: PublicItem.self), count: items.count)
}
return Array(buffer)
}
```buffer.initialize(from: privateBytes.baseAddress!.assumingMemoryBound(to: PublicItem.self), count: items.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] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
let rawBuffer = UnsafeMutableRawBufferPointer(buffer)
let itemsBuffer = UnsafeMutableBufferPointer<PrivateItem>(start: UnsafeMutablePointer(mutating: items.baseAddress), count: items.count)
rawBuffer.copyMemory(from: itemsBuffer)
return Array(buffer)
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
let rawBuffer = UnsafeMutableRawBufferPointer(buffer)
let itemsBuffer = UnsafeMutableBufferPointer<PrivateItem>(start: UnsafeMutablePointer(mutating: items.baseAddress), count: items.count)
rawBuffer.copyMemory(from: itemsBuffer)
return Array(buffer)
}
```let itemsBuffer = UnsafeMutableBufferPointer<PrivateItem>(start: UnsafeMutablePointer(mutating: items.baseAddress), count: items.count) // value of type '[PrivateItem]' has no member 'baseAddress'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 {
$0.bindMemory(to: PublicItem.self).baseAddress!
}.assumingMemoryBound(to: PublicItem.self)
.map { $0 }
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
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 {
$0.bindMemory(to: PublicItem.self).baseAddress!
}.assumingMemoryBound(to: PublicItem.self)
.map { $0 }
}
```}.assumingMemoryBound(to: PublicItem.self) // value of type 'UnsafePointer<PublicItem>' has no member 'assumingMemoryBound'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let size = MemoryLayout<PrivateItem>.size
let count = items.count
let byteCount = size * count
return items.withUnsafeBytes { privateBytes in
privateBytes.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) { publicBytes in
Array(UnsafeBufferPointer(start: publicBytes, count: count))
}
}
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let size = MemoryLayout<PrivateItem>.size
let count = items.count
let byteCount = size * count
return items.withUnsafeBytes { privateBytes in
privateBytes.baseAddress!.withMemoryRebound(to: PublicItem.self, capacity: count) { publicBytes in
Array(UnsafeBufferPointer(start: publicBytes, count: count))
}
}
}
```let byteCount = size * count // initialization of immutable value 'byteCount' 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] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
let rawBuffer = UnsafeMutableRawBufferPointer(buffer)
let itemsBuffer = rawBuffer.bindMemory(to: PrivateItem.self)
itemsBuffer.copyMemory(from: items)
return Array(buffer)
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
let rawBuffer = UnsafeMutableRawBufferPointer(buffer)
let itemsBuffer = rawBuffer.bindMemory(to: PrivateItem.self)
itemsBuffer.copyMemory(from: items)
return Array(buffer)
}
```itemsBuffer.copyMemory(from: items) // value of type 'UnsafeMutableBufferPointer<PrivateItem>' has no member 'copyMemory'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
_ = items.withUnsafeBytes { privateBuffer in
buffer.initialize(from: privateBuffer)
}
return Array(buffer)
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeMutableBufferPointer<PublicItem>.allocate(capacity: items.count)
defer {
buffer.deallocate()
}
_ = items.withUnsafeBytes { privateBuffer in
buffer.initialize(from: privateBuffer)
}
return Array(buffer)
}
```buffer.initialize(from: privateBuffer) // instance method 'initialize(from:)' requires the types 'PublicItem' and 'UnsafeRawBufferPointer.Element' (aka 'UInt8') be equivalentstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBytes {
$0.bindMemory(to: PublicItem.self).baseAddress!
}.assumingMemoryBound(to: PublicItem.self)
.prefix(items.count)
.map { $0 }
}Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment. ```swift
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 {
$0.bindMemory(to: PublicItem.self).baseAddress!
}.assumingMemoryBound(to: PublicItem.self)
.prefix(items.count)
.map { $0 }
}
```}.assumingMemoryBound(to: PublicItem.self) // value of type 'UnsafePointer<PublicItem>' has no member 'assumingMemoryBound'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsNum = Int(lhsComponent.filter { !$0.isLetter }) ?? 0
let rhsNum = Int(rhsComponent.filter { !$0.isLetter }) ?? 0
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
let lhsSuffix = lhsComponent.filter { $0.isLetter }
let rhsSuffix = rhsComponent.filter { $0.isLetter }
if lhsSuffix < rhsSuffix {
return .orderedAscending
} else if lhsSuffix > rhsSuffix {
return .orderedDescending
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsNum = Int(lhsComponent.filter { !$0.isLetter }) ?? 0
let rhsNum = Int(rhsComponent.filter { !$0.isLetter }) ?? 0
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
let lhsSuffix = lhsComponent.filter { $0.isLetter }
let rhsSuffix = rhsComponent.filter { $0.isLetter }
if lhsSuffix < rhsSuffix {
return .orderedAscending
} else if lhsSuffix > rhsSuffix {
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.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsNum = Int(lhsComponent.filter { !$0.isLetter }) ?? 0
let rhsNum = Int(rhsComponent.filter { !$0.isLetter }) ?? 0
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
let lhsSuffix = lhsComponent.filter { $0.isLetter }
let rhsSuffix = rhsComponent.filter { $0.isLetter }
if lhsSuffix < rhsSuffix {
return .orderedAscending
} else if lhsSuffix > rhsSuffix {
return .orderedDescending
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsNum = Int(lhsComponent.filter { !$0.isLetter }) ?? 0
let rhsNum = Int(rhsComponent.filter { !$0.isLetter }) ?? 0
if lhsNum < rhsNum {
return .orderedAscending
} else if lhsNum > rhsNum {
return .orderedDescending
}
let lhsSuffix = lhsComponent.filter { $0.isLetter }
let rhsSuffix = rhsComponent.filter { $0.isLetter }
if lhsSuffix < rhsSuffix {
return .orderedAscending
} else if lhsSuffix > rhsSuffix {
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.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsNum = Int(lhsComponent.filter { "0"..."9" ~= $0 }) ?? 0
let rhsNum = Int(rhsComponent.filter { "0"..."9" ~= $0 }) ?? 0
let lhsSuffix = lhsComponent.filter { !"0"..."9" ~= $0 }
let rhsSuffix = rhsComponent.filter { !"0"..."9" ~= $0 }
if lhsNum != rhsNum {
return lhsNum < rhsNum ? .orderedAscending : .orderedDescending
}
if lhsSuffix != rhsSuffix {
if lhsSuffix.isEmpty {
return .orderedDescending
} else if rhsSuffix.isEmpty {
return .orderedAscending
} else if lhsSuffix == "alpha" && rhsSuffix == "beta" {
return .orderedAscending
} else if lhsSuffix == "beta" && rhsSuffix == "alpha" {
return .orderedDescending
}
}
}
if lhsComponents.count != rhsComponents.count {
return lhsComponents.count < rhsComponents.count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsNum = Int(lhsComponent.filter { "0"..."9" ~= $0 }) ?? 0
let rhsNum = Int(rhsComponent.filter { "0"..."9" ~= $0 }) ?? 0
let lhsSuffix = lhsComponent.filter { !"0"..."9" ~= $0 }
let rhsSuffix = rhsComponent.filter { !"0"..."9" ~= $0 }
if lhsNum != rhsNum {
return lhsNum < rhsNum ? .orderedAscending : .orderedDescending
}
if lhsSuffix != rhsSuffix {
if lhsSuffix.isEmpty {
return .orderedDescending
} else if rhsSuffix.isEmpty {
return .orderedAscending
} else if lhsSuffix == "alpha" && rhsSuffix == "beta" {
return .orderedAscending
} else if lhsSuffix == "beta" && rhsSuffix == "alpha" {
return .orderedDescending
}
}
}
if lhsComponents.count != rhsComponents.count {
return lhsComponents.count < rhsComponents.count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
```let lhsSuffix = lhsComponent.filter { !"0"..."9" ~= $0 } // cannot convert value of type 'Bool' to expected argument type 'String.Element' (aka 'Character')let lhsSuffix = lhsComponent.filter { !"0"..."9" ~= $0 } // cannot convert value of type 'String' to expected argument type 'Bool'let rhsSuffix = rhsComponent.filter { !"0"..."9" ~= $0 } // cannot convert value of type 'Bool' to expected argument type 'String.Element' (aka 'Character')let rhsSuffix = rhsComponent.filter { !"0"..."9" ~= $0 } // cannot convert value of type 'String' to expected argument type 'Bool'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsVersion = Int(lhsComponent.filter { !$0.isLetter }) ?? 0
let rhsVersion = Int(rhsComponent.filter { !$0.isLetter }) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
let lhsSuffix = lhsComponent.filter { $0.isLetter }
let rhsSuffix = rhsComponent.filter { $0.isLetter }
if lhsSuffix < rhsSuffix {
return .orderedAscending
} else if lhsSuffix > rhsSuffix {
return .orderedDescending
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsVersion = Int(lhsComponent.filter { !$0.isLetter }) ?? 0
let rhsVersion = Int(rhsComponent.filter { !$0.isLetter }) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
let lhsSuffix = lhsComponent.filter { $0.isLetter }
let rhsSuffix = rhsComponent.filter { $0.isLetter }
if lhsSuffix < rhsSuffix {
return .orderedAscending
} else if lhsSuffix > rhsSuffix {
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.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
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.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComp, rhsComp) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComp), let rhsInt = Int(rhsComp) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
return .orderedDescending
}
} else {
if lhsComp < rhsComp {
return .orderedAscending
} else if lhsComp > rhsComp {
return .orderedDescending
}
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult. ```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.split(separator: ".").map { String($0) }
let rhsComponents = rhs.split(separator: ".").map { String($0) }
for (lhsComp, rhsComp) in zip(lhsComponents, rhsComponents) {
if let lhsInt = Int(lhsComp), let rhsInt = Int(rhsComp) {
if lhsInt < rhsInt {
return .orderedAscending
} else if lhsInt > rhsInt {
return .orderedDescending
}
} else {
if lhsComp < rhsComp {
return .orderedAscending
} else if lhsComp > rhsComp {
return .orderedDescending
}
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failed