Metadata
| Key | Value |
|---|---|
| engine | transformers |
| prompt | instruct |
| 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 {
// your code here
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// your code here
}
```} // missing return in global function expected to return 'JSON' (aka 'Dictionary<String, Any>')typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// Your code here
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// Your code here
}
```} // missing return in global function expected to return 'JSON' (aka 'Dictionary<String, Any>')typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// Your code here
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// Your code here
}
```} // missing return in global function expected to return 'JSON' (aka 'Dictionary<String, Any>')typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// Your code here
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// Your code here
}
```} // missing return in global function expected to return 'JSON' (aka 'Dictionary<String, Any>')typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// your code here
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// your code here
}
```} // missing return in global function expected to return 'JSON' (aka 'Dictionary<String, Any>')typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// your code here
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// your code here
}
```} // missing return in global function expected to return 'JSON' (aka 'Dictionary<String, Any>')typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// your code here
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
// your code here
}
```} // missing return in global function expected to return 'JSON' (aka 'Dictionary<String, Any>')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 {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```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 {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```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 jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
guard let jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```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 jsonDict = json as? JSON else {
throw ParsingError.invalidInput
}
return jsonDict
} catch {
throw ParsingError.internalError(error)
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsString = attrs.isEmpty ? "" : " " + attrs.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined(separator: "")
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsString = attrs.isEmpty ? "" : " " + attrs.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined(separator: "")
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsStr = attrs.isEmpty ? "" : " " + attrs.joined(separator: " ")
let childrenStr = children.map(generate).joined(separator: "")
return "<\(name)\(attrsStr)>\(childrenStr)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsStr = attrs.isEmpty ? "" : " " + attrs.joined(separator: " ")
let childrenStr = children.map(generate).joined(separator: "")
return "<\(name)\(attrsStr)>\(childrenStr)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsString = attrs.isEmpty ? "" : " " + attrs.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined(separator: "")
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsString = attrs.isEmpty ? "" : " " + attrs.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined(separator: "")
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsString = attrs.isEmpty ? "" : " \(attrs.joined(separator: " "))"
let childrenString = children.map { generate($0) }.joined(separator: "")
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsString = attrs.isEmpty ? "" : " \(attrs.joined(separator: " "))"
let childrenString = children.map { generate($0) }.joined(separator: "")
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in "\(key)=\"\(value)\"" }.joined(separator: " ")
let childs = children.map { generate($0) }.joined(separator: "")
return "<\(name) \(attrs)>\(childs)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsString = attrs.isEmpty ? "" : " " + attrs.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined(separator: "")
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}### Instruction:
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>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { key, value in
return "\(key)=\"\(value)\""
}
let attrsString = attrs.isEmpty ? "" : " " + attrs.joined(separator: " ")
let childrenString = children.map { generate($0) }.joined(separator: "")
return "<\(name)\(attrsString)>\(childrenString)</\(name)>"
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ").map { String($0) }
guard tokens.count > 0 else { throw CalculateError.invalidInput }
let stack = try tokens.reduce([], { (stack, token) -> [Double] in
switch token {
case "+":
guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput }
return stack + [left + right]
case "-":
guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput }
return stack + [left - right]
case "*":
guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput }
return stack + [left * right]
case "/":
guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput }
return stack + [left / right]
case "(":
return stack + [Double(token)]
case ")":
var result = 0.0
while let token = stack.popLast(), token != "(" {
result = result * token
}
return stack + [result]
default:
return stack + [Double(token)]
}
})
guard let result = stack.popLast() else { throw CalculateError.invalidInput }
return result
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ").map { String($0) }
guard tokens.count > 0 else { throw CalculateError.invalidInput }
let stack = try tokens.reduce([], { (stack, token) -> [Double] in
switch token {
case "+":
guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput }
return stack + [left + right]
case "-":
guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput }
return stack + [left - right]
case "*":
guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput }
return stack + [left * right]
case "/":
guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput }
return stack + [left / right]
case "(":
return stack + [Double(token)]
case ")":
var result = 0.0
while let token = stack.popLast(), token != "(" {
result = result * token
}
return stack + [result]
default:
return stack + [Double(token)]
}
})
guard let result = stack.popLast() else { throw CalculateError.invalidInput }
return result
}
```guard let left = stack.popLast(), let right = stack.popLast() else { throw CalculateError.invalidInput } // cannot use mutating member on immutable value: 'stack' is a 'let' constantenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map {
switch $0 {
case "0"..."9":
return .number(Double($0) ?? 0)
case "+":
return .operation(.add)
case "-":
return .operation(.subtract)
case "*":
return .operation(.multiply)
case "/":
return .operation(.divide)
case "(":
return .openBracket
case ")":
return .closeBracket
default:
return .invalid
}
}
var stack: [Double] = []
for token in tokens {
switch token {
case .number(let number):
stack.append(number)
case .operation(let operation):
guard let first = stack.popLast() else {
throw CalculateError.invalidInput
}
guard let second = stack.popLast() else {
throw CalculateError.invalidInput
}
switch operation {
case .add:
stack.append(first + second)
case .subtract:
stack.append(first - second)
case .multiply:
stack.append(first * second)
case .divide:
stack.append(first / second)
}
case .openBracket:
stack.append(0)
case .closeBracket:
guard let first = stack.popLast() else {
throw CalculateError.invalidInput
}
guard let second = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(second + first)
case .invalid:
throw CalculateError.invalidInput
}
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
enum Token {
case number(Double)
case operation(Operation)
case openBracket
case closeBracket
case invalid
}
enum Operation: String {
case add = "+"
case subtract = "-"
case multiply = "*"
case divide = "/"
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map {
switch $0 {
case "0"..."9":
return .number(Double($0) ?? 0)
case "+":
return .operation(.add)
case "-":
return .operation(.subtract)
case "*":
return .operation(.multiply)
case "/":
return .operation(.divide)
case "(":
return .openBracket
case ")":
return .closeBracket
default:
return .invalid
}
}
var stack: [Double] = []
for token in tokens {
switch token {
case .number(let number):
stack.append(number)
case .operation(let operation):
guard let first = stack.popLast() else {
throw CalculateError.invalidInput
}
guard let second = stack.popLast() else {
throw CalculateError.invalidInput
}
switch operation {
case .add:
stack.append(first + second)
case .subtract:
stack.append(first - second)
case .multiply:
stack.append(first * second)
case .divide:
stack.append(first / second)
}
case .openBracket:
stack.append(0)
case .closeBracket:
guard let first = stack.popLast() else {
throw CalculateError.invalidInput
}
guard let second = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(second + first)
case .invalid:
throw CalculateError.invalidInput
}
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
enum Token {
case number(Double)
case operation(Operation)
case openBracket
case closeBracket
case invalid
}
enum Operation: String {
case add = "+"
case subtract = "-"
case multiply = "*"
case divide = "/"
}
```return .number(Double($0) ?? 0) // reference to member 'number' cannot be resolved without a contextual typereturn .number(Double($0) ?? 0) // cannot convert value of type 'String.Element' (aka 'Character') to expected argument type 'Substring'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map { $0 }
guard let result = try calculate(tokens) else {
throw CalculateError.invalidInput
}
return result
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map { $0 }
guard let result = try calculate(tokens) else {
throw CalculateError.invalidInput
}
return result
}
func calculate(_ tokens: [Character]) throws -> Double? {
let tokens = tokens.filter { $0 != " " }
guard let first = tokens.first else {
return nil
}
if first == "(" {
var index = 1
var result: Double?
while let token = tokens[safe: index] {
if token == ")" {
if let next = tokens[safe: index + 1] {
if next == "(" {
index += 1
continue
}
}
if let next = tokens[safe: index + 1] {
if next == "+" || next == "-" || next == "*" || next == "/" {
return nil
}
}
return result
}
if let next = tokens[safe: index + 1] {
if next == "(" {
index += 1
continue
}
}
if let next = tokens[safe: index + 1] {
if next == "+" || next == "-" || next == "*" || next == "/" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == ")" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == "(" {
index += 1
continue
}
}
if let next = tokens[safe: index + 1] {
if next == "+" || next == "-" || next == "*" || next == "/" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == ")" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == "(" {
index += 1
continue
}
}
if let next = tokens[safe: index + 1] {
if next == "+" || next == "-" || next == "*" || next == "/" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == ")" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == "(" {
index += 1
continue
}
}
if let next = tokens[safe: index + 1] {
if next == "+" || next == "-" || next == "*" || next == "/" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == ")" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == "(" {
index += 1
continue
}
}
if let next = tokens[safe: index + 1] {
if next == "+" || next == "-" || next == "*" || next == "/" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == ")" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == "(" {
index += 1
continue
}
}
if let next = tokens[safe: index + 1] {
if next == "+" || next == "-" || next == "*" || next == "/" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == ")" {
return nil
}
}
if let next = tokens[safe: index + 1] {
if next == "(" {
index += guard let result = try calculate(tokens) else { // cannot convert value of type '[String.Element]' (aka 'Array<Character>') to expected argument type 'String'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
guard let first = Double(string) else {
throw CalculateError.invalidInput
}
var result = first
var current = first
var operatorSign: Character?
for char in string.dropFirst(string.distance(from: string.startIndex, to: string.index(of: first.description)!)) {
if char == " " {
continue
}
if char == "+" || char == "-" || char == "*" || char == "/" {
operatorSign = char
continue
}
if char == "(" {
current = try calculate(string.dropFirst(string.distance(from: string.startIndex, to: string.index(of: first.description)!)))
continue
}
if char == ")" {
break
}
if let sign = operatorSign {
switch sign {
case "+":
result += current
case "-":
result -= current
case "*":
result *= current
case "/":
result /= current
default:
break
}
current = 0
operatorSign = nil
} else {
current = Double(String(char))!
}
}
return result
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
guard let first = Double(string) else {
throw CalculateError.invalidInput
}
var result = first
var current = first
var operatorSign: Character?
for char in string.dropFirst(string.distance(from: string.startIndex, to: string.index(of: first.description)!)) {
if char == " " {
continue
}
if char == "+" || char == "-" || char == "*" || char == "/" {
operatorSign = char
continue
}
if char == "(" {
current = try calculate(string.dropFirst(string.distance(from: string.startIndex, to: string.index(of: first.description)!)))
continue
}
if char == ")" {
break
}
if let sign = operatorSign {
switch sign {
case "+":
result += current
case "-":
result -= current
case "*":
result *= current
case "/":
result /= current
default:
break
}
current = 0
operatorSign = nil
} else {
current = Double(String(char))!
}
}
return result
}
```for char in string.dropFirst(string.distance(from: string.startIndex, to: string.index(of: first.description)!)) { // cannot convert value of type 'String' to expected argument type 'String.Element' (aka 'Character')enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
guard let first = Double(string) else {
throw CalculateError.invalidInput
}
var result = first
var stack = [Double]()
var isMinus = false
for ch in string.dropFirst(string.distance(from: string.startIndex, to: string.index(of: first)!)) {
switch ch {
case "+":
if isMinus {
result -= stack.popLast()!
} else {
result += stack.popLast()!
}
isMinus = false
case "-":
if isMinus {
result += stack.popLast()!
} else {
result -= stack.popLast()!
}
isMinus = true
case "*":
result *= stack.popLast()!
case "/":
result /= stack.popLast()!
case "(":
stack.append(result)
result = 0
case ")":
break
default:
throw CalculateError.invalidInput
}
}
return result
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
guard let first = Double(string) else {
throw CalculateError.invalidInput
}
var result = first
var stack = [Double]()
var isMinus = false
for ch in string.dropFirst(string.distance(from: string.startIndex, to: string.index(of: first)!)) {
switch ch {
case "+":
if isMinus {
result -= stack.popLast()!
} else {
result += stack.popLast()!
}
isMinus = false
case "-":
if isMinus {
result += stack.popLast()!
} else {
result -= stack.popLast()!
}
isMinus = true
case "*":
result *= stack.popLast()!
case "/":
result /= stack.popLast()!
case "(":
stack.append(result)
result = 0
case ")":
break
default:
throw CalculateError.invalidInput
}
}
return result
}
```for ch in string.dropFirst(string.distance(from: string.startIndex, to: string.index(of: first)!)) { // cannot convert value of type 'Double' to expected argument type 'String.Element' (aka 'Character')enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map { $0 }
guard let result = try calculate(tokens) else {
throw CalculateError.invalidInput
}
return result
}
func calculate(_ tokens: [Character]) throws -> Double? {
guard let result = try calculate(tokens, 0, tokens.count - 1) else {
return nil
}
return result
}
func calculate(_ tokens: [Character], _ start: Int, _ end: Int) throws -> Double? {
guard start < end else {
return nil
}
var stack = [Double]()
var index = start
while index <= end {
let token = tokens[index]
switch token {
case "(":
guard let result = try calculate(tokens, index + 1, end) else {
return nil
}
stack.append(result)
index = end + 1
case ")":
return stack.popLast()
case "+", "-", "*", "/":
guard let left = stack.popLast(), let right = stack.popLast() else {
return nil
}
stack.append(try calculate(left, right, token))
default:
guard let number = Double(String(token)) else {
return nil
}
stack.append(number)
}
index += 1
}
return stack.popLast()
}
func calculate(_ left: Double, _ right: Double, _ token: Character) throws -> Double {
switch token {
case "+":
return left + right
case "-":
return left - right
case "*":
return left * right
case "/":
return left / right
default:
throw CalculateError.invalidInput
}
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map { $0 }
guard let result = try calculate(tokens) else {
throw CalculateError.invalidInput
}
return result
}
func calculate(_ tokens: [Character]) throws -> Double? {
guard let result = try calculate(tokens, 0, tokens.count - 1) else {
return nil
}
return result
}
func calculate(_ tokens: [Character], _ start: Int, _ end: Int) throws -> Double? {
guard start < end else {
return nil
}
var stack = [Double]()
var index = start
while index <= end {
let token = tokens[index]
switch token {
case "(":
guard let result = try calculate(tokens, index + 1, end) else {
return nil
}
stack.append(result)
index = end + 1
case ")":
return stack.popLast()
case "+", "-", "*", "/":
guard let left = stack.popLast(), let right = stack.popLast() else {
return nil
}
stack.append(try calculate(left, right, token))
default:
guard let number = Double(String(token)) else {
return nil
}
stack.append(number)
}
index += 1
}
return stack.popLast()
}
func calculate(_ left: Double, _ right: Double, _ token: Character) throws -> Double {
switch token {
case "+":
return left + right
case "-":
return left - right
case "*":
return left * right
case "/":
return left / right
default:
throw CalculateError.invalidInput
}
}
``` // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
guard let first = string.first else {
throw CalculateError.invalidInput
}
guard first != "(" else {
return try calculate(string.dropFirst())
}
guard let last = string.last else {
throw CalculateError.invalidInput
}
guard last != ")" else {
return try calculate(string.dropLast())
}
guard let operatorIndex = string.firstIndex(of: "(") else {
return try calculate(string.dropFirst())
}
guard let nextOperatorIndex = string.firstIndex(of: ")") else {
return try calculate(string.dropFirst())
}
guard operatorIndex < nextOperatorIndex else {
return try calculate(string.dropFirst())
}
let left = try calculate(String(string.prefix(upTo: operatorIndex)))
let right = try calculate(String(string.dropFirst(operatorIndex - string.startIndex + 1).dropLast()))
let operatorSymbol = string[operatorIndex]
switch operatorSymbol {
case "+":
return left + right
case "-":
return left - right
case "*":
return left * right
case "/":
return left / right
default:
throw CalculateError.invalidInput
}
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
guard let first = string.first else {
throw CalculateError.invalidInput
}
guard first != "(" else {
return try calculate(string.dropFirst())
}
guard let last = string.last else {
throw CalculateError.invalidInput
}
guard last != ")" else {
return try calculate(string.dropLast())
}
guard let operatorIndex = string.firstIndex(of: "(") else {
return try calculate(string.dropFirst())
}
guard let nextOperatorIndex = string.firstIndex(of: ")") else {
return try calculate(string.dropFirst())
}
guard operatorIndex < nextOperatorIndex else {
return try calculate(string.dropFirst())
}
let left = try calculate(String(string.prefix(upTo: operatorIndex)))
let right = try calculate(String(string.dropFirst(operatorIndex - string.startIndex + 1).dropLast()))
let operatorSymbol = string[operatorIndex]
switch operatorSymbol {
case "+":
return left + right
case "-":
return left - right
case "*":
return left * right
case "/":
return left / right
default:
throw CalculateError.invalidInput
}
}
```return try calculate(string.dropFirst()) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'return try calculate(string.dropLast()) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'return try calculate(string.dropFirst()) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'return try calculate(string.dropFirst()) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'return try calculate(string.dropFirst()) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'let right = try calculate(String(string.dropFirst(operatorIndex - string.startIndex + 1).dropLast())) // referencing operator function '-' on 'Strideable' requires that 'String.Index' conform to '_Pointer'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map { $0 }
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
let stack = try calculate(tokens, [])
guard stack.count == 1 else { throw CalculateError.invalidInput }
return stack.first!
}
private func calculate(_ tokens: [Character], _ stack: [Double]) throws -> [Double] {
guard !tokens.isEmpty else { return stack }
let token = tokens.removeFirst()
switch token {
case "(":
let stack = try calculate(tokens, stack)
guard tokens.first == ")" else { throw CalculateError.invalidInput }
tokens.removeFirst()
return stack
case "+", "-", "*", "/":
guard let first = stack.popLast(), let second = stack.popLast() else { throw CalculateError.invalidInput }
let result = try calculate(tokens, [second, first])
return try calculate(tokens, [result.first!, result.last!])
case "0", "1", "2", "3", "4", "5", "6", "7", "8", "9":
let number = try calculate(tokens, [])
return try calculate(tokens, [number.first!])
default:
throw CalculateError.invalidInput
}
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map { $0 }
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
let stack = try calculate(tokens, [])
guard stack.count == 1 else { throw CalculateError.invalidInput }
return stack.first!
}
private func calculate(_ tokens: [Character], _ stack: [Double]) throws -> [Double] {
guard !tokens.isEmpty else { return stack }
let token = tokens.removeFirst()
switch token {
case "(":
let stack = try calculate(tokens, stack)
guard tokens.first == ")" else { throw CalculateError.invalidInput }
tokens.removeFirst()
return stack
case "+", "-", "*", "/":
guard let first = stack.popLast(), let second = stack.popLast() else { throw CalculateError.invalidInput }
let result = try calculate(tokens, [second, first])
return try calculate(tokens, [result.first!, result.last!])
case "0", "1", "2", "3", "4", "5", "6", "7", "8", "9":
let number = try calculate(tokens, [])
return try calculate(tokens, [number.first!])
default:
throw CalculateError.invalidInput
}
}
```let token = tokens.removeFirst() // cannot use mutating member on immutable value: 'tokens' is a 'let' constanttokens.removeFirst() // cannot use mutating member on immutable value: 'tokens' is a 'let' constantguard let first = stack.popLast(), let second = stack.popLast() else { throw CalculateError.invalidInput } // cannot use mutating member on immutable value: 'stack' is a 'let' constantguard let first = stack.popLast(), let second = stack.popLast() else { throw CalculateError.invalidInput } // cannot use mutating member on immutable value: 'stack' is a 'let' constantenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map { $0 }
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
var currentNumber: Double = 0
for token in tokens {
switch token {
case "(":
stack.append(currentNumber)
currentNumber = 0
case ")":
guard let number = stack.popLast() else { throw CalculateError.invalidInput }
currentNumber += number
case "+", "-", "*", "/":
stack.append(currentNumber)
currentNumber = 0
case let digit where digit.isNumber:
currentNumber = currentNumber * 10 + Double(digit.asciiValue! - 48)
default:
throw CalculateError.invalidInput
}
}
stack.append(currentNumber)
return stack.reduce(0, +)
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.map { $0 }
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
var currentNumber: Double = 0
for token in tokens {
switch token {
case "(":
stack.append(currentNumber)
currentNumber = 0
case ")":
guard let number = stack.popLast() else { throw CalculateError.invalidInput }
currentNumber += number
case "+", "-", "*", "/":
stack.append(currentNumber)
currentNumber = 0
case let digit where digit.isNumber:
currentNumber = currentNumber * 10 + Double(digit.asciiValue! - 48)
default:
throw CalculateError.invalidInput
}
}
stack.append(currentNumber)
return stack.reduce(0, +)
}
``` // XCTAssertEqual failed: (6.0) is not equal to (8.0)enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ").map { String($0) }
let stack = try calculate(tokens)
guard stack.count == 1 else { throw CalculateError.invalidInput }
return stack.first!
}
private func calculate(_ tokens: [String]) throws -> [Double] {
var stack: [Double] = []
for token in tokens {
switch token {
case "+":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let right = stack.removeLast()
let left = stack.removeLast()
stack.append(left + right)
case "-":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let right = stack.removeLast()
let left = stack.removeLast()
stack.append(left - right)
case "*":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let right = stack.removeLast()
let left = stack.removeLast()
stack.append(left * right)
case "/":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let right = stack.removeLast()
let left = stack.removeLast()
stack.append(left / right)
case "(":
let subTokens = try calculate(tokens)
stack.append(contentsOf: subTokens)
case ")":
return stack
default:
guard let number = Double(token) else { throw CalculateError.invalidInput }
stack.append(number)
}
}
throw CalculateError.invalidInput
}### Instruction:
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".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ").map { String($0) }
let stack = try calculate(tokens)
guard stack.count == 1 else { throw CalculateError.invalidInput }
return stack.first!
}
private func calculate(_ tokens: [String]) throws -> [Double] {
var stack: [Double] = []
for token in tokens {
switch token {
case "+":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let right = stack.removeLast()
let left = stack.removeLast()
stack.append(left + right)
case "-":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let right = stack.removeLast()
let left = stack.removeLast()
stack.append(left - right)
case "*":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let right = stack.removeLast()
let left = stack.removeLast()
stack.append(left * right)
case "/":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
let right = stack.removeLast()
let left = stack.removeLast()
stack.append(left / right)
case "(":
let subTokens = try calculate(tokens)
stack.append(contentsOf: subTokens)
case ")":
return stack
default:
guard let number = Double(token) else { throw CalculateError.invalidInput }
stack.append(number)
}
}
throw CalculateError.invalidInput
}
``` // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
task.standardOutput = outpipe
let errpipe = Pipe()
task.standardError = errpipe
task.launch()
task.waitUntilExit()
let data = outpipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errData = errpipe.fileHandleForReading.readDataToEndOfFile()
let error = String(data: errData, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
task.standardOutput = outpipe
let errpipe = Pipe()
task.standardError = errpipe
task.launch()
task.waitUntilExit()
let data = outpipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errData = errpipe.fileHandleForReading.readDataToEndOfFile()
let error = String(data: errData, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
task.standardOutput = outpipe
let errpipe = Pipe()
task.standardError = errpipe
task.launch()
task.waitUntilExit()
let data = outpipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errdata = errpipe.fileHandleForReading.readDataToEndOfFile()
let error = String(data: errdata, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
task.standardOutput = outpipe
let errpipe = Pipe()
task.standardError = errpipe
task.launch()
task.waitUntilExit()
let data = outpipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errdata = errpipe.fileHandleForReading.readDataToEndOfFile()
let error = String(data: errdata, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
task.standardOutput = outpipe
let errpipe = Pipe()
task.standardError = errpipe
task.launch()
task.waitUntilExit()
let data = outpipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errdata = errpipe.fileHandleForReading.readDataToEndOfFile()
let error = String(data: errdata, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
task.standardOutput = outpipe
let errpipe = Pipe()
task.standardError = errpipe
task.launch()
task.waitUntilExit()
let data = outpipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errdata = errpipe.fileHandleForReading.readDataToEndOfFile()
let error = String(data: errdata, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let errorOutput = String(data: errorData, encoding: .utf8) ?? ""
return (output, errorOutput)
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
task.standardOutput = outpipe
let errpipe = Pipe()
task.standardError = errpipe
task.launch()
task.waitUntilExit()
let data = outpipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errdata = errpipe.fileHandleForReading.readDataToEndOfFile()
let error = String(data: errdata, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
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.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
task.standardOutput = outpipe
let errpipe = Pipe()
task.standardError = errpipe
task.launch()
task.waitUntilExit()
let data = outpipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
let errdata = errpipe.fileHandleForReading.readDataToEndOfFile()
let error = String(data: errdata, encoding: .utf8) ?? ""
return (output, error)
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let ret = function(arg)
cache[arg] = ret
return ret
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let cached = cache[arg] {
return cached
}
let computed = function(arg)
cache[arg] = computed
return computed
}
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attempts = attempts
while attempts > 0 {
do {
return try task()
} catch {
attempts -= 1
}
}
throw error
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var attempts = attempts
while attempts > 0 {
do {
return try task()
} catch {
attempts -= 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 1...attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 1...attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 1...attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 1...attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 1...attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 1...attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 1
while currentAttempt <= attempts {
do {
return try task()
} catch {
print("Attempt \(currentAttempt) failed")
}
currentAttempt += 1
}
throw NSError(domain: "retry", code: -1, userInfo: nil)
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 1
while currentAttempt <= attempts {
do {
return try task()
} catch {
print("Attempt \(currentAttempt) failed")
}
currentAttempt += 1
}
throw NSError(domain: "retry", code: -1, userInfo: nil)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}### Instruction:
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.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[type] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[type] else { return nil }
return factory() as? T
}
}
```private var factories: [Any.Type: () -> Any] = [:] // type 'any Any.Type' does not conform to protocol 'Hashable'factories[type] = factory // type 'any Any.Type' cannot conform to 'Hashable'guard let factory = factories[type] else { return nil } // type 'any Any.Type' cannot conform to 'Hashable'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 typeName = String(describing: type)
factories[typeName] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let typeName = String(describing: type)
guard let factory = factories[typeName] as? () -> T else { return nil }
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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 typeName = String(describing: type)
factories[typeName] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let typeName = String(describing: type)
guard let factory = factories[typeName] as? () -> T else { return nil }
return factory()
}
}
```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] as? () -> T else { return nil }
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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] as? () -> T else { return nil }
return factory()
}
}
```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) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}
```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) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] 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: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[type] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[type] else { return nil }
return factory() as? T
}
}
```private var factories: [Any.Type: () -> Any] = [:] // type 'any Any.Type' does not conform to protocol 'Hashable'factories[type] = factory // type 'any Any.Type' cannot conform to 'Hashable'guard let factory = factories[type] else { return nil } // type 'any Any.Type' cannot conform to 'Hashable'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] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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] as? () -> T else {
return nil
}
return factory()
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[type] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[type] else { return nil }
return factory() as? T
}
}
```private var factories: [Any.Type: () -> Any] = [:] // type 'any Any.Type' does not conform to protocol 'Hashable'factories[type] = factory // type 'any Any.Type' cannot conform to 'Hashable'guard let factory = factories[type] else { return nil } // type 'any Any.Type' cannot conform to 'Hashable'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) {
factories[String(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(type)] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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) {
factories[String(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(type)] as? () -> T else {
return nil
}
return factory()
}
}
```factories[String(type)] = factory // no exact matches in call to initializerguard let factory = factories[String(type)] as? () -> T else { // type 'T.Type' cannot conform to 'LosslessStringConvertible'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 typeName = String(describing: type)
factories[typeName] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let typeName = String(describing: type)
guard let factory = factories[typeName] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```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 typeName = String(describing: type)
factories[typeName] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let typeName = String(describing: type)
guard let factory = factories[typeName] as? () -> T else {
return nil
}
return factory()
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'state = nextState // cannot assign value of type 'Event' to type 'State'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'state = nextState // cannot assign value of type 'Event' to type 'State'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'state = nextState // cannot assign value of type 'Event' to type 'State'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 {
typealias Transition = (State, State, Event)
private var state: State
private var transitions: [Transition] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
let transition = transitions.first { $0.2 == event && $0.0 == state }
guard let (_, to, _) = transition else {
return
}
state = to
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
typealias Transition = (State, State, Event)
private var state: State
private var transitions: [Transition] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
let transition = transitions.first { $0.2 == event && $0.0 == state }
guard let (_, to, _) = transition else {
return
}
state = to
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'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 {
typealias Transition = (State, State, Event)
private var state: State
private var transitions: [Transition] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
let transition = transitions.first { $0.2 == event && $0.0 == state }
guard let (_, toState, _) = transition else { return }
state = toState
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
typealias Transition = (State, State, Event)
private var state: State
private var transitions: [Transition] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
let transition = transitions.first { $0.2 == event && $0.0 == state }
guard let (_, toState, _) = transition else { return }
state = toState
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'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 {
typealias Transition = (State, State, Event)
private var state: State
private var transitions: [Transition] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
let transition = transitions.first { (from, to, event) -> Bool in
return from == self.state && event == event
}
if let transition = transition {
state = transition.to
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
typealias Transition = (State, State, Event)
private var state: State
private var transitions: [Transition] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
let transition = transitions.first { (from, to, event) -> Bool in
return from == self.state && event == event
}
if let transition = transition {
state = transition.to
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'state = transition.to // value of tuple type '(State, State, Event)' has no member 'to'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [State: Event]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
private var state: State
private var transitions: [State: [State: Event]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'init(state: State) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<State, Event>'state = nextState // cannot assign value of type 'Event' to type 'State'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'state = nextState // cannot assign value of type 'Event' to type 'State'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```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 {
private var state: State
private var transitions: [State: [State: Event]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[state] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][to] = event
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'state = nextState // cannot assign value of type 'Event' to type 'State'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 let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
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.
### Response:
```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 let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}### Instruction:
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.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
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.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
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.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
``` // XCTAssertEqual failed: (3) is not equal to (4)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 let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(1) { max($0, $1.treeDepth + 1) }
}
}
}### Instruction:
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.
### Response:
```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 let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(1) { max($0, $1.treeDepth + 1) }
}
}
}
```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 let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case let .directory(_, contents):
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}### Instruction:
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.
### Response:
```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 let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case let .directory(_, contents):
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueindirect 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 let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}### Instruction:
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.
### Response:
```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 let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
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.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(1) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(1) { max($0, $1.treeDepth) + 1 }
}
}
}### Instruction:
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.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(1) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(1) { max($0, $1.treeDepth) + 1 }
}
}
}
``` // XCTAssertEqual failed: (5) is not equal to (4)indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(1) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}### Instruction:
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.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(1) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max()!
}
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueprotocol 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()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```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()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```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] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```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()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```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] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```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()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```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()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```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] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```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 stack: [Element] = []
init() {}
func push(_ element: Element) {
stack.append(element)
}
func pop() -> Element? {
return stack.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var stack: [Element] = []
init() {}
func push(_ element: Element) {
stack.append(element)
}
func pop() -> Element? {
return stack.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 {
typealias Element = Element
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
typealias Element = Element
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
set {
guard let element = newValue else {
cache.removeValue(forKey: key)
return
}
cache[key] = element
lru.removeAll(where: { $0 == key })
lru.append(key)
if lru.count > capacity {
let keyToRemove = lru.first!
cache.removeValue(forKey: keyToRemove)
lru.removeAll(where: { $0 == keyToRemove })
}
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
set {
guard let element = newValue else {
cache.removeValue(forKey: key)
return
}
cache[key] = element
lru.removeAll(where: { $0 == key })
lru.append(key)
if lru.count > capacity {
let keyToRemove = lru.first!
cache.removeValue(forKey: keyToRemove)
lru.removeAll(where: { $0 == keyToRemove })
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
if let element = newValue {
cache[key] = element
lru.removeAll(where: { $0 == key })
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll(where: { $0 == key })
}
if lru.count > capacity {
let keyToRemove = lru.first!
cache.removeValue(forKey: keyToRemove)
lru.removeAll(where: { $0 == keyToRemove })
}
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
if let element = newValue {
cache[key] = element
lru.removeAll(where: { $0 == key })
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll(where: { $0 == key })
}
if lru.count > capacity {
let keyToRemove = lru.first!
cache.removeValue(forKey: keyToRemove)
lru.removeAll(where: { $0 == keyToRemove })
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
guard let value = newValue else {
cache.removeValue(forKey: key)
return
}
if cache[key] == nil {
if keys.count == capacity {
cache.removeValue(forKey: keys.removeFirst())
}
keys.append(key)
}
cache[key] = value
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
guard let value = newValue else {
cache.removeValue(forKey: key)
return
}
if cache[key] == nil {
if keys.count == capacity {
cache.removeValue(forKey: keys.removeFirst())
}
keys.append(key)
}
cache[key] = value
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
guard let value = newValue else { return }
if cache.count == capacity {
cache.removeValue(forKey: lru.removeFirst())
}
cache[key] = value
lru.append(key)
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
guard let value = newValue else { return }
if cache.count == capacity {
cache.removeValue(forKey: lru.removeFirst())
}
cache[key] = value
lru.append(key)
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
guard let value = newValue else {
cache.removeValue(forKey: key)
return
}
if cache.count == capacity {
let lruKey = lru.removeFirst()
cache.removeValue(forKey: lruKey)
}
cache[key] = value
lru.append(key)
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
guard let value = newValue else {
cache.removeValue(forKey: key)
return
}
if cache.count == capacity {
let lruKey = lru.removeFirst()
cache.removeValue(forKey: lruKey)
}
cache[key] = value
lru.append(key)
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
if let oldValue = cache[key] {
cache[key] = newValue
keys.removeAll(where: { $0 == key })
keys.append(key)
} else {
cache[key] = newValue
keys.append(key)
if keys.count > capacity {
let keyToRemove = keys.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
if let oldValue = cache[key] {
cache[key] = newValue
keys.removeAll(where: { $0 == key })
keys.append(key)
} else {
cache[key] = newValue
keys.append(key)
if keys.count > capacity {
let keyToRemove = keys.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
}
}
}
```if let oldValue = cache[key] { // value 'oldValue' was defined but never used; consider replacing with boolean testprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
if cache[key] != nil {
lru.removeAll(where: { $0 == key })
lru.append(key)
} else {
if lru.count == capacity {
let keyToRemove = lru.first!
lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
lru.append(key)
}
cache[key] = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
if cache[key] != nil {
lru.removeAll(where: { $0 == key })
lru.append(key)
} else {
if lru.count == capacity {
let keyToRemove = lru.first!
lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
lru.append(key)
}
cache[key] = newValue
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache = [Key: Element]()
private var lru = [Key]()
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
if cache.count == capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
cache[key] = newValue
lru.append(key)
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache = [Key: Element]()
private var lru = [Key]()
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll(where: { $0 == key })
lru.append(key)
return element
}
return nil
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
return
}
if cache.count == capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
cache[key] = newValue
lru.append(key)
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
return
}
cache[key] = newValue
lru.removeAll { $0 == key }
lru.append(key)
if cache.count > capacity {
let keyToRemove = lru.first!
cache.removeValue(forKey: keyToRemove)
lru.removeAll { $0 == keyToRemove }
}
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
return
}
cache[key] = newValue
lru.removeAll { $0 == key }
lru.append(key)
if cache.count > capacity {
let keyToRemove = lru.first!
cache.removeValue(forKey: keyToRemove)
lru.removeAll { $0 == keyToRemove }
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll { $0 == key }
lru.append(key)
return element
}
return nil
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
return
}
if cache.count >= capacity {
let lruKey = lru.removeFirst()
cache.removeValue(forKey: lruKey)
}
cache[key] = newValue
lru.append(key)
}
}
}### Instruction:
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.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
private let capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
lru.removeAll { $0 == key }
lru.append(key)
return element
}
return nil
}
set {
guard let newValue = newValue else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
return
}
if cache.count >= capacity {
let lruKey = lru.removeFirst()
cache.removeValue(forKey: lruKey)
}
cache[key] = newValue
lru.append(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: Value, expiration: TimeInterval)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock()
defer { lock.unlock() }
cache[key] = (value: value, expiration: expiration)
}
func get(key: Key) -> Value? {
lock.lock()
defer { lock.unlock() }
guard let (value, expiration) = cache[key] else { return nil }
guard expiration > Date().timeIntervalSince1970 else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
extension ExpirableCache: Subscriptable {
subscript(key: Key) -> Value? {
get { return get(key: key) }
set {
guard let value = newValue else { return }
put(value: value, key: key, expiration: 10)
}
}
}### Instruction:
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.
### Response:
```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)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock()
defer { lock.unlock() }
cache[key] = (value: value, expiration: expiration)
}
func get(key: Key) -> Value? {
lock.lock()
defer { lock.unlock() }
guard let (value, expiration) = cache[key] else { return nil }
guard expiration > Date().timeIntervalSince1970 else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
extension ExpirableCache: Subscriptable {
subscript(key: Key) -> Value? {
get { return get(key: key) }
set {
guard let value = newValue else { return }
put(value: value, key: key, expiration: 10)
}
}
}
```extension ExpirableCache: Subscriptable { // cannot find type 'Subscriptable' in scopeThread.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)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock()
defer { lock.unlock() }
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
lock.lock()
defer { lock.unlock() }
guard let (value, expiration) = cache[key] else { return nil }
return expiration > Date() ? value : nil
}
}
extension ExpirableCache: Subscriptable {
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
guard let value = newValue else { return }
put(value: value, key: key, expiration: 10)
}
}
}### Instruction:
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.
### Response:
```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)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock()
defer { lock.unlock() }
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
lock.lock()
defer { lock.unlock() }
guard let (value, expiration) = cache[key] else { return nil }
return expiration > Date() ? value : nil
}
}
extension ExpirableCache: Subscriptable {
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
guard let value = newValue else { return }
put(value: value, key: key, expiration: 10)
}
}
}
```extension ExpirableCache: Subscriptable { // cannot find type 'Subscriptable' in scopeThread.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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else { return nil }
guard value.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}### Instruction:
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.
### Response:
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else { return nil }
guard value.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else {
return nil
}
guard value.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}### Instruction:
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.
### Response:
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else {
return nil
}
guard value.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
guard expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}### Instruction:
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.
### Response:
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
guard expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else { return nil }
guard value.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}### Instruction:
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.
### Response:
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else { return nil }
guard value.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else {
return nil
}
guard value.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}### Instruction:
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.
### Response:
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else {
return nil
}
guard value.expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}
```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)] = [:]
private let queue = DispatchQueue(label: "com.expirableCache", qos: .userInitiated)
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async {
self.cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key] else { return nil }
guard expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
}### Instruction:
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.
### Response:
```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)] = [:]
private let queue = DispatchQueue(label: "com.expirableCache", qos: .userInitiated)
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async {
self.cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key] else { return nil }
guard expiration > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
}
```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)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock()
defer { lock.unlock() }
cache[key] = (value: value, expiration: expiration)
}
func get(key: Key) -> Value? {
lock.lock()
defer { lock.unlock() }
guard let value = cache[key] else { return nil }
guard value.expiration > Date().timeIntervalSince1970 else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}### Instruction:
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.
### Response:
```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)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock()
defer { lock.unlock() }
cache[key] = (value: value, expiration: expiration)
}
func get(key: Key) -> Value? {
lock.lock()
defer { lock.unlock() }
guard let value = cache[key] else { return nil }
guard value.expiration > Date().timeIntervalSince1970 else {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}
```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 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else { return nil }
guard value.expiration > Date() else { return nil }
return value.value
}
}### Instruction:
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.
### Response:
```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) {
cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let value = cache[key] else { return nil }
guard value.expiration > Date() else { return nil }
return value.value
}
}
```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)
let keyLength = keyData!.count
let dataLength = data!.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData![keyIndex]
let dataByte = data![i]
let encryptedByte = dataByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)
let keyLength = keyData!.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData![keyIndex]
let dataByte = data[i]
let decryptedByte = dataByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)
let keyLength = keyData!.count
let dataLength = data!.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData![keyIndex]
let dataByte = data![i]
let encryptedByte = dataByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)
let keyLength = keyData!.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData![keyIndex]
let dataByte = data[i]
let decryptedByte = dataByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encryptedData = Data()
for i in 0..<data.count {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let byte = data[i]
let encryptedByte = byte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = Data()
for i in 0..<data.count {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let byte = data[i]
let decryptedByte = byte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)!
let keyLength = keyData.count
var encryptedData = Data()
for i in 0..<data.count {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let byte = data[i]
let encryptedByte = byte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = Data()
for i in 0..<data.count {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let byte = data[i]
let decryptedByte = byte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let encryptedByte = keyByte ^ dataByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)!
let keyLength = keyData.count
let dataLength = data.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let encryptedByte = keyByte ^ dataByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let encryptedByte = keyByte ^ dataByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)!
let keyLength = keyData.count
let dataLength = data.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let encryptedByte = keyByte ^ dataByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = keyByte ^ dataByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encrypted = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encrypted[i] = data[i] ^ keyData[i % keyLength]
}
return encrypted
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decrypted = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decrypted[i] = data[i] ^ keyData[i % keyLength]
}
return String(data: decrypted, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)!
let keyLength = keyData.count
var encrypted = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encrypted[i] = data[i] ^ keyData[i % keyLength]
}
return encrypted
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decrypted = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decrypted[i] = data[i] ^ keyData[i % keyLength]
}
return String(data: decrypted, 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)!
let keyLength = keyData.count
let dataLength = data.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let encryptedByte = dataByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = dataByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)!
let keyLength = keyData.count
let dataLength = data.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let encryptedByte = dataByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = dataByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var encrypted = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encrypted[i] = data[i] ^ keyData[i % keyLength]
}
return encrypted
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decrypted = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decrypted[i] = data[i] ^ keyData[i % keyLength]
}
return String(decoding: decrypted, as: UTF8.self)
}
}### Instruction:
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.
### Response:
```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)!
let keyLength = keyData.count
var encrypted = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encrypted[i] = data[i] ^ keyData[i % keyLength]
}
return encrypted
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decrypted = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decrypted[i] = data[i] ^ keyData[i % keyLength]
}
return String(decoding: decrypted, as: UTF8.self)
}
}
```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)!
let keyLength = keyData.count
var encrypted = Data(count: data.count)
var encryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyLength]
}
encrypted.append(encryptedData, count: data.count)
return encrypted
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyLength]
}
return String(bytes: decryptedData, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)!
let keyLength = keyData.count
var encrypted = Data(count: data.count)
var encryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyLength]
}
encrypted.append(encryptedData, count: data.count)
return encrypted
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
var decryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyLength]
}
return String(bytes: decryptedData, encoding: .utf8)!
}
}
``` // XCTAssertEqual failed: (Hello, SwiftEval!) is not equal to (passphrasepassphrYwzo~7!Bl~wfSupw )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)!
let keyLength = keyData.count
let dataLength = data.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let encryptedByte = dataByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = dataByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)!
let keyLength = keyData.count
let dataLength = data.count
var encryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let encryptedByte = dataByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count
let dataLength = data.count
var decryptedData = Data()
for i in 0..<dataLength {
let keyIndex = i % keyLength
let keyByte = keyData[keyIndex]
let dataByte = data[i]
let decryptedByte = dataByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)
let keyData = key.data(using: .utf8)
let encryptedData = data?.xor(keyData!)
return encryptedData!
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)
let decryptedData = data.xor(keyData!)
let decryptedString = String(data: decryptedData, encoding: .utf8)
return decryptedString!
}
}
extension Data {
func xor(_ data: Data) -> Data {
let result = NSMutableData(capacity: count)
var byte: UInt8 = 0
for i in 0 ..< count {
byte = self[i] ^ data[i % data.count]
result?.append(&byte, length: 1)
}
return result! as Data
}
}### Instruction:
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.
### Response:
```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)
let encryptedData = data?.xor(keyData!)
return encryptedData!
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)
let decryptedData = data.xor(keyData!)
let decryptedString = String(data: decryptedData, encoding: .utf8)
return decryptedString!
}
}
extension Data {
func xor(_ data: Data) -> Data {
let result = NSMutableData(capacity: count)
var byte: UInt8 = 0
for i in 0 ..< count {
byte = self[i] ^ data[i % data.count]
result?.append(&byte, length: 1)
}
return result! as Data
}
}
```protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let requestsToRemove = requests.filter { now.timeIntervalSince($0) > timeInterval }
requests.removeAll(where: { requestsToRemove.contains($0) })
return requests.count < maxRequests
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let requestsToRemove = requests.filter { now.timeIntervalSince($0) > timeInterval }
requests.removeAll(where: { requestsToRemove.contains($0) })
return requests.count < maxRequests
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertFalse failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let allowedRequests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
return allowedRequests.count < maxRequests
}
func makeRequest() {
if allowRequest() {
requests.append(Date())
}
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let allowedRequests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
return allowedRequests.count < maxRequests
}
func makeRequest() {
if allowRequest() {
requests.append(Date())
}
}
}
```let now = Date() // initialization of immutable value 'now' was never used; consider replacing with assignment to '_' or removing itThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertFalse failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let requestsToRemove = requests.filter { now.timeIntervalSince($0) > timeInterval }
requests.removeAll { requestsToRemove.contains($0) }
return requests.count < maxRequests
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let requestsToRemove = requests.filter { now.timeIntervalSince($0) > timeInterval }
requests.removeAll { requestsToRemove.contains($0) }
return requests.count < maxRequests
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertFalse failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int = 0
private var lastRequestDate: Date?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
guard let lastRequestDate = lastRequestDate else {
requestsCount += 1
lastRequestDate = now
return true
}
let timeInterval = now.timeIntervalSince(lastRequestDate)
guard timeInterval >= self.timeInterval else {
return false
}
requestsCount += 1
lastRequestDate = now
return true
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int = 0
private var lastRequestDate: Date?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
guard let lastRequestDate = lastRequestDate else {
requestsCount += 1
lastRequestDate = now
return true
}
let timeInterval = now.timeIntervalSince(lastRequestDate)
guard timeInterval >= self.timeInterval else {
return false
}
requestsCount += 1
lastRequestDate = now
return true
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'lastRequestDate = now // cannot assign to value: 'lastRequestDate' is a 'let' constantThread.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 var maxRequests: Int
private var timeInterval: TimeInterval
private var requestsCount: Int
private var lastRequestTime: Date
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
let currentTime = Date()
let timeInterval = currentTime.timeIntervalSince(lastRequestTime)
if timeInterval >= self.timeInterval {
requestsCount = 0
}
if requestsCount < maxRequests {
requestsCount += 1
lastRequestTime = currentTime
return true
}
return false
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requestsCount: Int
private var lastRequestTime: Date
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
let currentTime = Date()
let timeInterval = currentTime.timeIntervalSince(lastRequestTime)
if timeInterval >= self.timeInterval {
requestsCount = 0
}
if requestsCount < maxRequests {
requestsCount += 1
lastRequestTime = currentTime
return true
}
return false
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'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 var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
let now = Date()
let allowedRequests = self.requests.filter { $0.timeIntervalSinceNow < self.timeInterval }
return allowedRequests.count < self.maxRequests
}
func request() {
if self.allowRequest() {
self.requests.append(Date())
}
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
let now = Date()
let allowedRequests = self.requests.filter { $0.timeIntervalSinceNow < self.timeInterval }
return allowedRequests.count < self.maxRequests
}
func request() {
if self.allowRequest() {
self.requests.append(Date())
}
}
}
```let now = Date() // initialization of immutable value 'now' was never used; consider replacing with assignment to '_' or removing itThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertFalse failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let requests = self.requests.filter { $0.timeIntervalSinceNow > -self.timeInterval }
return requests.count < self.maxRequests
}
func makeRequest() {
if self.allowRequest() {
self.requests.append(Date())
}
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let requests = self.requests.filter { $0.timeIntervalSinceNow > -self.timeInterval }
return requests.count < self.maxRequests
}
func makeRequest() {
if self.allowRequest() {
self.requests.append(Date())
}
}
}
```let now = Date() // initialization of immutable value 'now' was never used; consider replacing with assignment to '_' or removing itThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertFalse failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let requests = self.requests.filter { $0.timeIntervalSinceNow < -self.timeInterval }
return requests.count < self.maxRequests
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let requests = self.requests.filter { $0.timeIntervalSinceNow < -self.timeInterval }
return requests.count < self.maxRequests
}
}
```let now = Date() // initialization of immutable value 'now' was never used; consider replacing with assignment to '_' or removing itThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertFalse failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let allowed = requests.filter { $0.timeIntervalSinceNow > -timeInterval }.count < maxRequests
if allowed {
requests.append(now)
}
return allowed
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let allowed = requests.filter { $0.timeIntervalSinceNow > -timeInterval }.count < maxRequests
if allowed {
requests.append(now)
}
return allowed
}
}
```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 requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let expiredRequests = requests.filter { now.timeIntervalSince($0) >= timeInterval }
let newRequests = requests.filter { !expiredRequests.contains($0) }
let newRequestsCount = newRequests.count
if newRequestsCount >= maxRequests {
return false
}
requests = newRequests + [now]
return true
}
}### Instruction:
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.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let expiredRequests = requests.filter { now.timeIntervalSince($0) >= timeInterval }
let newRequests = requests.filter { !expiredRequests.contains($0) }
let newRequestsCount = newRequests.count
if newRequestsCount >= maxRequests {
return false
}
requests = newRequests + [now]
return true
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private let queue = DispatchQueue(label: "ThreadSafeCounter")
private var counter: Int
required init(value: Int) {
counter = value
}
func increment() {
queue.sync {
counter += 1
}
}
func currentValue() -> Int {
queue.sync {
return counter
}
}
}### Instruction:
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.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private let queue = DispatchQueue(label: "ThreadSafeCounter")
private var counter: Int
required init(value: Int) {
counter = value
}
func increment() {
queue.sync {
counter += 1
}
}
func currentValue() -> Int {
queue.sync {
return counter
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### Instruction:
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.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "threadSafeCounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
queue.sync {
return value
}
}
}### Instruction:
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.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "threadSafeCounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
queue.sync {
return value
}
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
queue.sync {
return value
}
}
}### Instruction:
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.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
queue.sync {
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
}
}### Instruction:
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.
### Response:
```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 var value: Int
private let queue = DispatchQueue(label: "com.example.threadsafecounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = value
}
return result
}
}### Instruction:
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.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.example.threadsafecounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter", qos: .userInitiated, attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### Instruction:
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.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadSafeCounter", qos: .userInitiated, attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.example.threadSafeCounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
queue.sync {
return value
}
}
}### Instruction:
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.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.example.threadSafeCounter")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
queue.sync {
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
}
}### Instruction:
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.
### Response:
```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 var value: Int
private let queue = DispatchQueue(label: "com.threadsafecounter.queue")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = value
}
return result
}
}### Instruction:
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.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.threadsafecounter.queue")
required init(value: Int) {
self.value = value
}
func increment() {
queue.sync {
value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = value
}
return result
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Value
private var transformations: [(Value) -> Value] = []
required init(value: Value) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = transformations + [transform]
return newPipeline
}
func execute() -> Output {
return transformations.reduce(initialValue) { $1($0) }
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Value
private var transformations: [(Value) -> Value] = []
required init(value: Value) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = transformations + [transform]
return newPipeline
}
func execute() -> Output {
return transformations.reduce(initialValue) { $1($0) }
}
}
```let newPipeline = Pipeline<U>(value: initialValue) // cannot convert value of type 'Value' to expected argument type 'U'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Value
private var transforms: [(Value) -> Value] = []
required init(value: Value) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
transforms.append(transform)
return Pipeline<U>(value: initialValue)
}
func execute() -> Value {
return transforms.reduce(initialValue) { $1($0) }
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Value
private var transforms: [(Value) -> Value] = []
required init(value: Value) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
transforms.append(transform)
return Pipeline<U>(value: initialValue)
}
func execute() -> Value {
return transforms.reduce(initialValue) { $1($0) }
}
}
```transforms.append(transform) // cannot convert value of type '(Value) -> U' to expected argument type '(Value) -> Value'return Pipeline<U>(value: initialValue) // cannot convert value of type 'Value' to expected argument type 'U'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let transform: (Value) -> Output
private let value: Value
required init(value: Value) {
self.value = value
self.transform = { $0 }
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value)) {
$0.pipe(transform)
}
}
func execute() -> Output {
return transform(value)
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let transform: (Value) -> Output
private let value: Value
required init(value: Value) {
self.value = value
self.transform = { $0 }
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value)) {
$0.pipe(transform)
}
}
func execute() -> Output {
return transform(value)
}
}
```return Pipeline<U>(value: transform(self.value)) { // extra trailing closure passed in callprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let transform: (Value) -> Output
private let value: Value
required init(value: Value) {
self.value = value
self.transform = { $0 }
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value)) { transform($0) }
}
func execute() -> Output {
return self.transform(self.value)
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let transform: (Value) -> Output
private let value: Value
required init(value: Value) {
self.value = value
self.transform = { $0 }
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value)) { transform($0) }
}
func execute() -> Output {
return self.transform(self.value)
}
}
```return Pipeline<U>(value: transform(self.value)) { transform($0) } // extra trailing closure passed in callprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Output
private var transforms: [(Output) -> Output] = []
required init(value: Output) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
transforms.append(transform)
return Pipeline<U>(value: transform(initialValue))
}
func execute() -> Output {
return transforms.reduce(initialValue) { $1($0) }
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Output
private var transforms: [(Output) -> Output] = []
required init(value: Output) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
transforms.append(transform)
return Pipeline<U>(value: transform(initialValue))
}
func execute() -> Output {
return transforms.reduce(initialValue) { $1($0) }
}
}
```transforms.append(transform) // cannot convert value of type '(Pipeline<Value>.Output) -> U' (aka '(Value) -> U') to expected argument type '(Value) -> Value'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T> : PipelineProtocol {
typealias Output = T
private let initialValue: Output
private var transformations: [(Output) -> Output] = []
required init(value: Output) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = self.transformations + [transform]
return newPipeline
}
func execute() -> Output {
var result = initialValue
for transform in transformations {
result = transform(result)
}
return result
}
}### Instruction:
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.
### Response:
```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 initialValue: Output
private var transformations: [(Output) -> Output] = []
required init(value: Output) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = self.transformations + [transform]
return newPipeline
}
func execute() -> Output {
var result = initialValue
for transform in transformations {
result = transform(result)
}
return result
}
}
```let newPipeline = Pipeline<U>(value: initialValue) // cannot convert value of type 'T' to expected argument type 'U'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Output
private var transformations: [(Output) -> Output] = []
required init(value: Output) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = self.transformations + [transform]
return newPipeline
}
func execute() -> Output {
return self.transformations.reduce(initialValue) { $1($0) }
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Output
private var transformations: [(Output) -> Output] = []
required init(value: Output) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = self.transformations + [transform]
return newPipeline
}
func execute() -> Output {
return self.transformations.reduce(initialValue) { $1($0) }
}
}
```let newPipeline = Pipeline<U>(value: initialValue) // cannot convert value of type 'Value' to expected argument type 'U'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let transform: (Value) -> Output
private let value: Value
required init(value: Value) {
self.value = value
self.transform = { $0 }
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value)) { transform($0) }
}
func execute() -> Output {
return self.transform(self.value)
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let transform: (Value) -> Output
private let value: Value
required init(value: Value) {
self.value = value
self.transform = { $0 }
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value)) { transform($0) }
}
func execute() -> Output {
return self.transform(self.value)
}
}
```return Pipeline<U>(value: transform(self.value)) { transform($0) } // extra trailing closure passed in callprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Value
private var transformations: [(Value) -> Value] = []
required init(value: Value) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = transformations + [transform]
return newPipeline
}
func execute() -> Value {
return transformations.reduce(initialValue) { $1($0) }
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Value
private var transformations: [(Value) -> Value] = []
required init(value: Value) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = transformations + [transform]
return newPipeline
}
func execute() -> Value {
return transformations.reduce(initialValue) { $1($0) }
}
}
```let newPipeline = Pipeline<U>(value: initialValue) // cannot convert value of type 'Value' to expected argument type 'U'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Value
private var transformations: [(Value) -> Value] = []
required init(value: Value) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = transformations + [transform]
return newPipeline
}
func execute() -> Value {
return transformations.reduce(initialValue) { $1($0) }
}
}### Instruction:
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.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Value> : PipelineProtocol {
typealias Output = Value
private let initialValue: Value
private var transformations: [(Value) -> Value] = []
required init(value: Value) {
self.initialValue = value
}
func pipe<U>(_ transform: @escaping (Value) -> U) -> Pipeline<U> {
let newPipeline = Pipeline<U>(value: initialValue)
newPipeline.transformations = transformations + [transform]
return newPipeline
}
func execute() -> Value {
return transformations.reduce(initialValue) { $1($0) }
}
}
```let newPipeline = Pipeline<U>(value: initialValue) // cannot convert value of type 'Value' to expected argument type 'U'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
typealias ObserverId = UUID
private var observers: [ObserverId: Observer] = [:]
private var nextObserverId: ObserverId = UUID()
init(value: Value) {
self.value = value
}
var value: Value {
didSet {
observers.values.forEach { $0(value) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> ObserverId {
let id = nextObserverId
observers[id] = observer
nextObserverId = UUID()
return id
}
func unsubscribe(_ observer: ObserverId) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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 {
typealias Observer = (Value) -> Void
typealias ObserverId = UUID
private var observers: [ObserverId: Observer] = [:]
private var nextObserverId: ObserverId = UUID()
init(value: Value) {
self.value = value
}
var value: Value {
didSet {
observers.values.forEach { $0(value) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> ObserverId {
let id = nextObserverId
observers[id] = observer
nextObserverId = UUID()
return id
}
func unsubscribe(_ observer: ObserverId) {
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 {
typealias Value = Value
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get { return value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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 {
typealias Value = Value
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get { return value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'var value: Value { // invalid redeclaration of '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> {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ id: UUID) {
observers.removeValue(forKey: id)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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> {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ id: UUID) {
observers.removeValue(forKey: id)
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol 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> {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ id: UUID) {
observers.removeValue(forKey: id)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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> {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ id: UUID) {
observers.removeValue(forKey: id)
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers = [UUID: Observer]()
private var value: Value
init(value: Value) {
self.value = value
}
var value: Value {
get { return value }
set {
value = newValue
for observer in observers.values {
observer(newValue)
}
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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 {
typealias Observer = (Value) -> Void
private var observers = [UUID: Observer]()
private var value: Value
init(value: Value) {
self.value = value
}
var value: Value {
get { return value }
set {
value = newValue
for observer in observers.values {
observer(newValue)
}
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'var value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers = [UUID: Observer]()
private var nextObserverID = 0
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get {
return value
}
set {
value = newValue
observers.values.forEach { $0(value) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
nextObserverID += 1
observers[nextObserverID] = observer
return nextObserverID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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 {
typealias Observer = (Value) -> Void
private var observers = [UUID: Observer]()
private var nextObserverID = 0
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get {
return value
}
set {
value = newValue
observers.values.forEach { $0(value) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
nextObserverID += 1
observers[nextObserverID] = observer
return nextObserverID
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'var value: Value { // invalid redeclaration of 'value'observers[nextObserverID] = observer // cannot convert value of type 'Int' to expected argument type 'UUID'return nextObserverID // cannot convert return expression of type 'Int' to return type 'UUID'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> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get { return value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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 {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get { return value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'var value: Value { // invalid redeclaration of '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> {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ id: UUID) {
observers.removeValue(forKey: id)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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> {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
func subscribe(_ observer: @escaping Observer) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ id: UUID) {
observers.removeValue(forKey: id)
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: UUID = UUID()
init(value: Value) {
self.value = value
}
var value: Value {
didSet {
observers.values.forEach { $0(value) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = nextObserverID
nextObserverID = nextObserverID.uuidNext()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
extension UUID {
fileprivate static var nextID: UInt64 = 0
fileprivate var uuidNext: UUID {
defer { UUID.nextID += 1 }
return UUID(uuidString: "\(self.uuidString)-\(UUID.nextID)")!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```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 {
typealias Observer = (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var nextObserverID: UUID = UUID()
init(value: Value) {
self.value = value
}
var value: Value {
didSet {
observers.values.forEach { $0(value) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = nextObserverID
nextObserverID = nextObserverID.uuidNext()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
extension UUID {
fileprivate static var nextID: UInt64 = 0
fileprivate var uuidNext: UUID {
defer { UUID.nextID += 1 }
return UUID(uuidString: "\(self.uuidString)-\(UUID.nextID)")!
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'nextObserverID = nextObserverID.uuidNext() // cannot call value of non-function type 'UUID'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
var projectedValue: Value {
get { wrappedValue }
set { wrappedValue = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
var projectedValue: Value {
get { wrappedValue }
set { wrappedValue = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}
```return min(max(value, lowerBound), upperBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn min(max(value, lowerBound), upperBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformance // XCTAssertEqual failed: (15) is not equal to (10)protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return max(min(value, upperBound), lowerBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return max(min(value, upperBound), lowerBound)
}
}
```return max(min(value, upperBound), lowerBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn max(min(value, upperBound), lowerBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformance // XCTAssertEqual failed: (15) is not equal to (10)protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable> {
private var range: ClosedRange<Value>
private var value: Value
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = range.clamp(wrappedValue)
}
var wrappedValue: Value {
get { value }
set { value = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable> {
private var range: ClosedRange<Value>
private var value: Value
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = range.clamp(wrappedValue)
}
var wrappedValue: Value {
get { value }
set { value = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}
```return min(max(value, lowerBound), upperBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn min(max(value, lowerBound), upperBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformanceprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable> {
private var range: ClosedRange<Value>
private var value: Value
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = range.clamp(wrappedValue)
}
var wrappedValue: Value {
get { value }
set { value = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable> {
private var range: ClosedRange<Value>
private var value: Value
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = range.clamp(wrappedValue)
}
var wrappedValue: Value {
get { value }
set { value = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}
```return min(max(value, lowerBound), upperBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn min(max(value, lowerBound), upperBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformanceprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable> {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = range.clamp(wrappedValue)
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return value > upperBound ? upperBound : value < lowerBound ? lowerBound : value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable> {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = range.clamp(wrappedValue)
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return value > upperBound ? upperBound : value < lowerBound ? lowerBound : value
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(self.lowerBound, value), self.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(self.lowerBound, value), self.upperBound)
}
}
```return min(max(self.lowerBound, value), self.upperBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn min(max(self.lowerBound, value), self.upperBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformance // XCTAssertEqual failed: (15) is not equal to (10)protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}
```return min(max(value, lowerBound), upperBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn min(max(value, lowerBound), upperBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformance // XCTAssertEqual failed: (15) is not equal to (10)protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}
```return min(max(value, lowerBound), upperBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn min(max(value, lowerBound), upperBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformance // XCTAssertEqual failed: (15) is not equal to (10)protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable> {
private var range: ClosedRange<Value>
private var value: Value
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = range.clamp(wrappedValue)
}
var wrappedValue: Value {
get { value }
set { value = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable> {
private var range: ClosedRange<Value>
private var value: Value
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = range.clamp(wrappedValue)
}
var wrappedValue: Value {
get { value }
set { value = range.clamp(newValue) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return min(max(value, lowerBound), upperBound)
}
}
```return min(max(value, lowerBound), upperBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn min(max(value, lowerBound), upperBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformanceprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange {
func clamp(_ value: Bound) -> Bound {
return min(max(self.lowerBound, value), self.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = range.clamp(wrappedValue)
self.range = range
}
}
extension ClosedRange {
func clamp(_ value: Bound) -> Bound {
return min(max(self.lowerBound, value), self.upperBound)
}
}
```return min(max(self.lowerBound, value), self.upperBound) // use of 'min' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformancereturn min(max(self.lowerBound, value), self.upperBound) // use of 'max' as reference to global function in module 'Swift' will change in future versions of Swift to reference instance method in generic struct 'ClosedRange' which comes via a conditional conformance // XCTAssertEqual failed: (15) is not equal to (10)enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> { self }
subscript(key: String) -> Value {
get {
logger(.get, wrappedValue)
return wrappedValue
}
set {
logger(.set, wrappedValue)
wrappedValue = newValue
}
}
}
struct User {
@Logged(logger: { event, value in
print("\(event) \(value)")
})
var name: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> { self }
subscript(key: String) -> Value {
get {
logger(.get, wrappedValue)
return wrappedValue
}
set {
logger(.set, wrappedValue)
wrappedValue = newValue
}
}
}
struct User {
@Logged(logger: { event, value in
print("\(event) \(value)")
})
var name: String
}
var user = User()
user.name = "John"
user.name
```@Logged(logger: { event, value in // missing argument for parameter 'wrappedValue' in callenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
return self
}
subscript(index: Int) -> Value.Element {
get {
logger(.get, wrappedValue)
return wrappedValue[index]
}
set {
logger(.set, wrappedValue)
wrappedValue[index] = newValue
}
}
}
struct User {
@Logged(logger: { print($0, $1) })
var name: String
@Logged(logger: { print($0, $1) })
var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
return self
}
subscript(index: Int) -> Value.Element {
get {
logger(.get, wrappedValue)
return wrappedValue[index]
}
set {
logger(.set, wrappedValue)
wrappedValue[index] = newValue
}
}
}
struct User {
@Logged(logger: { print($0, $1) })
var name: String
@Logged(logger: { print($0, $1) })
var age: Int
}
let user = User()
user.name = "John"
user.age = 42
user.name[0] = "J"
user.age[0] = 4
```subscript(index: Int) -> Value.Element { // 'Element' is not a member type of type 'Value'wrappedValue[index] = newValue // value of type 'Value' has no subscripts@Logged(logger: { print($0, $1) }) // missing argument for parameter 'wrappedValue' in call@Logged(logger: { print($0, $1) }) // missing argument for parameter 'wrappedValue' in callenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value: LoggedProtocol> {
private var _wrappedValue: Value
private let logger: (Event, Value.Value) -> Void
var wrappedValue: Value.Value {
get {
logger(.get, _wrappedValue.wrappedValue)
return _wrappedValue.wrappedValue
}
set {
logger(.set, _wrappedValue.wrappedValue)
_wrappedValue.wrappedValue = newValue
}
}
init(wrappedValue: Value.Value, logger: @escaping (Event, Value.Value) -> Void) {
_wrappedValue = Value(wrappedValue: wrappedValue, logger: logger)
self.logger = logger
}
}
struct LoggedInt: LoggedProtocol {
typealias Value = Int
let wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
struct Point {
@Logged(wrappedValue: 0, logger: { print("Logged \($0) \($1)") })
var x: Int
@Logged(wrappedValue: 0, logger: { print("Logged \($0) \($1)") })
var y: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```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 _wrappedValue: Value
private let logger: (Event, Value.Value) -> Void
var wrappedValue: Value.Value {
get {
logger(.get, _wrappedValue.wrappedValue)
return _wrappedValue.wrappedValue
}
set {
logger(.set, _wrappedValue.wrappedValue)
_wrappedValue.wrappedValue = newValue
}
}
init(wrappedValue: Value.Value, logger: @escaping (Event, Value.Value) -> Void) {
_wrappedValue = Value(wrappedValue: wrappedValue, logger: logger)
self.logger = logger
}
}
struct LoggedInt: LoggedProtocol {
typealias Value = Int
let wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
struct Point {
@Logged(wrappedValue: 0, logger: { print("Logged \($0) \($1)") })
var x: Int
@Logged(wrappedValue: 0, logger: { print("Logged \($0) \($1)") })
var y: Int
}
var p = Point()
p.x = 10
p.y = 20
```logger(.get, _wrappedValue.wrappedValue) // value of type 'Value' has no member 'wrappedValue'return _wrappedValue.wrappedValue // value of type 'Value' has no member 'wrappedValue'logger(.set, _wrappedValue.wrappedValue) // value of type 'Value' has no member 'wrappedValue'_wrappedValue.wrappedValue = newValue // value of type 'Value' has no member 'wrappedValue'@Logged(wrappedValue: 0, logger: { print("Logged \($0) \($1)") }) // generic parameter 'Value' could not be inferred@Logged(wrappedValue: 0, logger: { print("Logged \($0) \($1)") }) // generic parameter 'Value' could not be inferred@Logged(logger: logger) var value: Int = 0 // generic parameter 'Value' could not be inferredenum 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.Value) -> Void
var wrappedValue: Value.Value {
get {
logger(.get, value.wrappedValue)
return value.wrappedValue
}
set {
logger(.set, value.wrappedValue)
value.wrappedValue = newValue
}
}
init(wrappedValue: Value.Value, logger: @escaping (Event, Value.Value) -> Void) {
self.value = Value(wrappedValue: wrappedValue, logger: logger)
self.logger = logger
}
}
struct LoggedInt: LoggedProtocol {
typealias Value = Int
let wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
struct Point {
@Logged(wrappedValue: 0, logger: { print($0, $1) })
var x: Int
@Logged(wrappedValue: 0, logger: { print($0, $1) })
var y: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```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.Value) -> Void
var wrappedValue: Value.Value {
get {
logger(.get, value.wrappedValue)
return value.wrappedValue
}
set {
logger(.set, value.wrappedValue)
value.wrappedValue = newValue
}
}
init(wrappedValue: Value.Value, logger: @escaping (Event, Value.Value) -> Void) {
self.value = Value(wrappedValue: wrappedValue, logger: logger)
self.logger = logger
}
}
struct LoggedInt: LoggedProtocol {
typealias Value = Int
let wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
struct Point {
@Logged(wrappedValue: 0, logger: { print($0, $1) })
var x: Int
@Logged(wrappedValue: 0, logger: { print($0, $1) })
var y: Int
}
var p = Point()
p.x = 10
p.y = 20
```logger(.get, value.wrappedValue) // value of type 'Value' has no member 'wrappedValue'return value.wrappedValue // value of type 'Value' has no member 'wrappedValue'logger(.set, value.wrappedValue) // value of type 'Value' has no member 'wrappedValue'value.wrappedValue = newValue // value of type 'Value' has no member 'wrappedValue'@Logged(wrappedValue: 0, logger: { print($0, $1) }) // generic parameter 'Value' could not be inferred@Logged(wrappedValue: 0, logger: { print($0, $1) }) // generic parameter 'Value' could not be inferred@Logged(logger: logger) var value: Int = 0 // generic parameter 'Value' could not be inferredenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
return self
}
subscript(index: Int) -> Value.Element {
get {
logger(.get, wrappedValue)
return wrappedValue[index]
}
set {
logger(.set, wrappedValue)
wrappedValue[index] = newValue
}
}
}
struct Point: Equatable {
@Logged var x: Int
@Logged var y: Int
init(x: Int, y: Int) {
self.$x = Logged(wrappedValue: x) { event, value in
print("\(event) \(value)")
}
self.$y = Logged(wrappedValue: y) { event, value in
print("\(event) \(value)")
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
return self
}
subscript(index: Int) -> Value.Element {
get {
logger(.get, wrappedValue)
return wrappedValue[index]
}
set {
logger(.set, wrappedValue)
wrappedValue[index] = newValue
}
}
}
struct Point: Equatable {
@Logged var x: Int
@Logged var y: Int
init(x: Int, y: Int) {
self.$x = Logged(wrappedValue: x) { event, value in
print("\(event) \(value)")
}
self.$y = Logged(wrappedValue: y) { event, value in
print("\(event) \(value)")
}
}
}
let point = Point(x: 1, y: 2)
point.x = 3
point.y = 4
```subscript(index: Int) -> Value.Element { // 'Element' is not a member type of type 'Value'wrappedValue[index] = newValue // value of type 'Value' has no subscriptsstruct Point: Equatable { // type 'Point' does not conform to protocol 'Equatable'self.$x = Logged(wrappedValue: x) { event, value in // cannot assign to property: '$x' is immutableself.$y = Logged(wrappedValue: y) { event, value in // cannot assign to property: '$y' is immutableenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value: LoggedProtocol>: LoggedProtocol {
var wrappedValue: Value
init(wrappedValue: Value, logger: @escaping (Event, Value.Value) -> Void) {
self.wrappedValue = Value(wrappedValue: wrappedValue, logger: logger)
}
}
extension Logged where Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value: LoggedProtocol>: LoggedProtocol {
var wrappedValue: Value
init(wrappedValue: Value, logger: @escaping (Event, Value.Value) -> Void) {
self.wrappedValue = Value(wrappedValue: wrappedValue, logger: logger)
}
}
extension Logged where Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable {
var projectedValue: Logged<Value> { self }
}
extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.struct Logged<Value: LoggedProtocol>: LoggedProtocol { // type 'Logged<Value>' does not conform to protocol 'LoggedProtocol'self.wrappedValue = Value(wrappedValue: wrappedValue, logger: logger) // cannot convert value of type 'Value' (generic parameter of generic struct 'Logged') to expected argument type 'Value.Value' (associated type of protocol 'LoggedProtocol')extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'var projectedValue: Logged<Value> { self } // invalid redeclaration of 'projectedValue'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'var projectedValue: Logged<Value> { self } // invalid redeclaration of 'projectedValue'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'var projectedValue: Logged<Value> { self } // invalid redeclaration of 'projectedValue'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'var projectedValue: Logged<Value> { self } // invalid redeclaration of 'projectedValue'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'var projectedValue: Logged<Value> { self } // invalid redeclaration of 'projectedValue'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'var projectedValue: Logged<Value> { self } // invalid redeclaration of 'projectedValue'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'var projectedValue: Logged<Value> { self } // invalid redeclaration of 'projectedValue'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'extension Logged where Value: Equatable, Value.Value: Equatable, Value.Value.Value: Equatable, Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable, Value.Value.Value.Value.Value.Value.Value.Value.Value.Value: Equatable { // 'Value' is not a member type of type 'Value.Value'var projectedValue: Logged<Value> { self } // invalid redeclaration of 'projectedValue'@Logged(logger: logger) var value: Int = 0 // generic struct 'Logged' requires that 'Int' conform to 'LoggedProtocol'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
get {
logger(.get, wrappedValue)
return self
}
set {
logger(.set, wrappedValue)
wrappedValue = newValue.wrappedValue
}
}
}
class User {
@Logged(wrappedValue: 0, logger: { event, value in
print("\(event) age to \(value)")
})
var age: Int
init(age: Int) {
self.age = age
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
get {
logger(.get, wrappedValue)
return self
}
set {
logger(.set, wrappedValue)
wrappedValue = newValue.wrappedValue
}
}
}
class User {
@Logged(wrappedValue: 0, logger: { event, value in
print("\(event) age to \(value)")
})
var age: Int
init(age: Int) {
self.age = age
}
}
let user = User(age: 10)
user.age = 20
``` // XCTAssertEqual failed: ([]) is not equal to (["Accessing value: 0"])enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value: Equatable>: 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, value)
value = newValue
}
}
}
class User {
@Logged(wrappedValue: "123456", logger: { print($0, $1) })
var password: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value: Equatable>: 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, value)
value = newValue
}
}
}
class User {
@Logged(wrappedValue: "123456", logger: { print($0, $1) })
var password: String
}
let user = User()
user.password = "newPassword"
``` // XCTAssertEqual failed: (["Accessing value: 0", "Setting value: 0"]) is not equal to (["Accessing value: 0", "Setting value: 10"])enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value: Equatable>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, value)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
class User {
@Logged(wrappedValue: "name", logger: { event, value in
print("\(event) \(value)")
})
var name: String
init(name: String) {
self.name = name
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value: Equatable>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, value)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
class User {
@Logged(wrappedValue: "name", logger: { event, value in
print("\(event) \(value)")
})
var name: String
init(name: String) {
self.name = name
}
}
let user = User(name: "John")
print(user.name)
user.name = "Jane"
print(user.name)
``` // XCTAssertEqual failed: (["Accessing value: 0", "Setting value: 0"]) is not equal to (["Accessing value: 0", "Setting value: 10"])enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> { self }
var value: Value {
get {
logger(.get, wrappedValue)
return wrappedValue
}
set {
logger(.set, wrappedValue)
wrappedValue = newValue
}
}
}
struct User {
@Logged(wrappedValue: "John", logger: { print($0, $1) })
var name: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> { self }
var value: Value {
get {
logger(.get, wrappedValue)
return wrappedValue
}
set {
logger(.set, wrappedValue)
wrappedValue = newValue
}
}
}
struct User {
@Logged(wrappedValue: "John", logger: { print($0, $1) })
var name: String
}
let user = User()
print(user.name)
user.name = "Jane"
print(user.name)
``` // XCTAssertEqual failed: ([]) is not equal to (["Accessing value: 0"])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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
case .keyboardDeleteBackwards:
city = String(city.dropLast())
case .searchButtonPress:
guard !city.isEmpty else { return nil }
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
case .keyboardDeleteBackwards:
city = String(city.dropLast())
case .searchButtonPress:
guard !city.isEmpty else { return nil }
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
case .keyboardDeleteBackwards:
city = String(city.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
case .keyboardDeleteBackwards:
city = String(city.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
case .keyboardDeleteBackwards:
city = String(city.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
case .keyboardDeleteBackwards:
city = String(city.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case let .keyboardCharacterSelect(character):
city += String(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case let .keyboardCharacterSelect(character):
city += String(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
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.
### Response:
```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 city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
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) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard amount <= balance else { return false }
balance -= amount
return true
}
}### Instruction:
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.
### Response:
```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) async {
balance += amount
}
func withdraw(amount: Double) async -> 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) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard balance >= amount else { return false }
balance -= amount
return true
}
}### Instruction:
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.
### Response:
```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) async {
balance += amount
}
func withdraw(amount: Double) async -> 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 var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return balance
}
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard amount <= balance else {
return false
}
balance -= amount
return true
}
}### Instruction:
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.
### Response:
```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 var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return balance
}
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard amount <= balance else {
return false
}
balance -= amount
return true
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'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) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard amount <= balance else { return false }
balance -= amount
return true
}
}### Instruction:
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.
### Response:
```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) async {
balance += amount
}
func withdraw(amount: Double) async -> 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 var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
balance
}
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard balance >= amount else { return false }
balance -= amount
return true
}
}### Instruction:
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.
### Response:
```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 var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
balance
}
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard balance >= amount else { return false }
balance -= amount
return true
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'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) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard amount <= balance else { return false }
balance -= amount
return true
}
}### Instruction:
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.
### Response:
```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) async {
balance += amount
}
func withdraw(amount: Double) async -> 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
private var transactions: [Transaction]
init(balance: Double) {
self.balance = balance
self.transactions = []
}
func deposit(amount: Double) async {
transactions.append(.deposit(amount: amount))
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard balance >= amount else { return false }
transactions.append(.withdraw(amount: amount))
balance -= amount
return true
}
}
enum Transaction {
case deposit(amount: Double)
case withdraw(amount: Double)
}### Instruction:
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.
### Response:
```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
private var transactions: [Transaction]
init(balance: Double) {
self.balance = balance
self.transactions = []
}
func deposit(amount: Double) async {
transactions.append(.deposit(amount: amount))
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard balance >= amount else { return false }
transactions.append(.withdraw(amount: amount))
balance -= amount
return true
}
}
enum Transaction {
case deposit(amount: Double)
case withdraw(amount: Double)
}
```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
private var transactions: [Double] = []
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
transactions.append(amount)
}
func withdraw(amount: Double) async -> Bool {
guard amount <= balance else { return false }
transactions.append(-amount)
return true
}
func updateBalance() async {
balance += transactions.reduce(0, +)
transactions.removeAll()
}
}### Instruction:
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.
### Response:
```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
private var transactions: [Double] = []
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
transactions.append(amount)
}
func withdraw(amount: Double) async -> Bool {
guard amount <= balance else { return false }
transactions.append(-amount)
return true
}
func updateBalance() async {
balance += transactions.reduce(0, +)
transactions.removeAll()
}
}
```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) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard balance >= amount else { return false }
balance -= amount
return true
}
}### Instruction:
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.
### Response:
```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) async {
balance += amount
}
func withdraw(amount: Double) async -> 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) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard balance >= amount else { return false }
balance -= amount
return true
}
}### Instruction:
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.
### Response:
```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) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
guard balance >= amount else { return false }
balance -= amount
return true
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let condition: () -> Bool
private let wrappedValue: @autoclosure @escaping () -> Value
private var cache: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.wrappedValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
cache = wrappedValue()
}
return cache ?? wrappedValue()
}
set {
cache = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let condition: () -> Bool
private let wrappedValue: @autoclosure @escaping () -> Value
private var cache: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.wrappedValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
cache = wrappedValue()
}
return cache ?? wrappedValue()
}
set {
cache = newValue
}
}
}
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'private let wrappedValue: @autoclosure @escaping () -> Value // '@autoclosure' may only be used on parametersself.wrappedValue = wrappedValue // function produces expected type 'Value'; did you mean to call it with '()'?cache = wrappedValue() // cannot call value of non-function type 'Value'return cache ?? wrappedValue() // cannot call value of non-function type 'Value'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = computeValue()
}
return value ?? computeValue()
}
set {
value = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = computeValue()
}
return value ?? computeValue()
}
set {
value = newValue
}
}
}
``` // XCTAssertEqual failed: (2) is not equal to (1)protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let condition: () -> Bool
private let compute: () -> Value
private var value: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.compute = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = compute()
}
return value!
}
set {
value = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let condition: () -> Bool
private let compute: () -> Value
private var value: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.compute = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = compute()
}
return value!
}
set {
value = newValue
}
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let condition: () -> Bool
private let wrappedValue: () -> Value
private var cache: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.wrappedValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
cache = wrappedValue()
}
return cache ?? wrappedValue()
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let condition: () -> Bool
private let wrappedValue: () -> Value
private var cache: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.wrappedValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
cache = wrappedValue()
}
return cache ?? wrappedValue()
}
}
}
```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 condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() || value == nil {
value = computeValue()
}
return value!
}
set {
value = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() || value == nil {
value = computeValue()
}
return value!
}
set {
value = newValue
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value
private let condition: () -> Bool
private var isCached: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = wrappedValue()
self.condition = condition
self.isCached = condition()
}
var wrappedValue: Value {
mutating get {
if isCached && condition() {
return value
} else {
value = wrappedValue
isCached = true
return value
}
}
set {
value = newValue
isCached = true
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value
private let condition: () -> Bool
private var isCached: Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = wrappedValue()
self.condition = condition
self.isCached = condition()
}
var wrappedValue: Value {
mutating get {
if isCached && condition() {
return value
} else {
value = wrappedValue
isCached = true
return value
}
}
set {
value = newValue
isCached = true
}
}
}
```value = wrappedValue // attempting to access 'wrappedValue' within its own getterprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = computeValue()
}
return value ?? computeValue()
}
set {
value = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = computeValue()
}
return value ?? computeValue()
}
set {
value = newValue
}
}
}
``` // XCTAssertEqual failed: (2) is not equal to (1)protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = computeValue()
}
return value ?? computeValue()
}
set {
value = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = computeValue()
}
return value ?? computeValue()
}
set {
value = newValue
}
}
}
``` // XCTAssertEqual failed: (2) is not equal to (1)protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = computeValue()
}
return value!
}
set {
value = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.computeValue = wrappedValue
}
var wrappedValue: Value {
mutating get {
if condition() {
value = computeValue()
}
return value!
}
set {
value = newValue
}
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let condition: () -> Bool
private var value: Value?
private var _wrappedValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self._wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() {
value = _wrappedValue()
}
return value ?? _wrappedValue()
}
set {
value = newValue
}
}
}### Instruction:
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.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private let condition: () -> Bool
private var value: Value?
private var _wrappedValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self._wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() {
value = _wrappedValue()
}
return value ?? _wrappedValue()
}
set {
value = newValue
}
}
}
``` // XCTAssertEqual failed: (2) is not equal to (1)infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { lhs($0) >>> rhs }
}### Instruction:
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).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { lhs($0) >>> rhs }
}
```return { lhs($0) >>> rhs } // generic parameter 'A' could not be inferredreturn { lhs($0) >>> rhs } // cannot convert value of type 'B' to expected argument type '(A) -> B'return { lhs($0) >>> rhs } // cannot convert value of type '(A) -> C' to closure result type 'C'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}### Instruction:
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).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
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).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in
return g(f(x))
}
}### Instruction:
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).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in
return g(f(x))
}
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}### Instruction:
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).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}### Instruction:
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).
### Response:
```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 { g(f($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: MultiplicationPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}### Instruction:
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).
### Response:
```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 { g(f($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}### Instruction:
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).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}### Instruction:
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).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { g(f($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in
return g(f(x))
}
}### Instruction:
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).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in
return g(f(x))
}
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var digest = SHA256.hash(Data())
inputStream.open()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest = digest.combine(SHA256.hash(Data(buffer[..<bytesRead])))
}
}
inputStream.close()
return digest
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var digest = SHA256.hash(Data())
inputStream.open()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest = digest.combine(SHA256.hash(Data(buffer[..<bytesRead])))
}
}
inputStream.close()
return digest
}
```var digest = SHA256.hash(Data()) // missing argument label 'data:' in calldigest = digest.combine(SHA256.hash(Data(buffer[..<bytesRead]))) // missing argument label 'data:' in callimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256.hasher()
inputStream.open()
defer { inputStream.close() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
} else {
break
}
}
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256.hasher()
inputStream.open()
defer { inputStream.close() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
} else {
break
}
}
return hash.finalize()
}
```var hash = SHA256.hasher() // type 'SHA256' has no member 'hasher'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
inputStream.open()
defer { inputStream.close() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[0..<bytesRead]))
} else {
return nil
}
}
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
inputStream.open()
defer { inputStream.close() }
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[0..<bytesRead]))
} else {
return nil
}
}
return hash.finalize()
}
```hash.update(Data(buffer[0..<bytesRead])) // missing argument label 'data:' in callimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256.hasher()
inputStream.open()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
} else {
break
}
}
inputStream.close()
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256.hasher()
inputStream.open()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
} else {
break
}
}
inputStream.close()
return hash.finalize()
}
```var hash = SHA256.hasher() // type 'SHA256' has no member 'hasher'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[0..<bytesRead]))
} else {
return nil
}
}
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[0..<bytesRead]))
} else {
return nil
}
}
return hash.finalize()
}
```hash.update(Data(buffer[0..<bytesRead])) // missing argument label 'data:' in callimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256.hasher()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: buffer.count)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
}
}
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256.hasher()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: buffer.count)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
}
}
return hash.finalize()
}
```var hash = SHA256.hasher() // type 'SHA256' has no member 'hasher'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[0..<bytesRead]))
}
}
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[0..<bytesRead]))
}
}
return hash.finalize()
}
```hash.update(Data(buffer[0..<bytesRead])) // missing argument label 'data:' in callimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
}
}
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
}
}
return hash.finalize()
}
```hash.update(Data(buffer[..<bytesRead])) // missing argument label 'data:' in callimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[0..<bytesRead]))
}
}
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[0..<bytesRead]))
}
}
return hash.finalize()
}
```hash.update(Data(buffer[0..<bytesRead])) // missing argument label 'data:' in callimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
}
}
return hash.finalize()
}### Instruction:
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.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var buffer = [UInt8](repeating: 0, count: bufferSize)
var hash = SHA256()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.update(Data(buffer[..<bytesRead]))
}
}
return hash.finalize()
}
```hash.update(Data(buffer[..<bytesRead])) // missing argument label 'data:' in calltypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let cString = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
cString.initialize(from: tuple16, count: 16)
self = String(cString: cString)
cString.deinitialize(count: 16)
cString.deallocate()
}
}### Instruction:
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.
### Response:
```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 cString = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
cString.initialize(from: tuple16, count: 16)
self = String(cString: cString)
cString.deinitialize(count: 16)
cString.deallocate()
}
}
```cString.initialize(from: tuple16, count: 16) // cannot convert value of type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') to expected argument type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = [UInt8](tuple16)
self = String(bytes: bytes, encoding: .ascii) ?? ""
}
}### Instruction:
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.
### Response:
```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 bytes = [UInt8](tuple16)
self = String(bytes: bytes, encoding: .ascii) ?? ""
}
}
```let bytes = [UInt8](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 bytes = [UInt8](tuple16)
self = String(bytes: bytes, encoding: .ascii)!
}
}### Instruction:
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.
### Response:
```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 bytes = [UInt8](tuple16)
self = String(bytes: bytes, encoding: .ascii)!
}
}
```let bytes = [UInt8](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 bytes = Array(tuple16)
let length = bytes.count
let range = bytes.startIndex..<bytes.index(before: bytes.endIndex)
let data = Data(bytes: bytes[range])
self = String(data: data, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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 bytes = Array(tuple16)
let length = bytes.count
let range = bytes.startIndex..<bytes.index(before: bytes.endIndex)
let data = Data(bytes: bytes[range])
self = String(data: data, encoding: .utf8)!
}
}
```let bytes = 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 cString = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
cString.initialize(from: tuple16, count: 16)
self = String(cString: cString)
cString.deallocate()
}
}### Instruction:
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.
### Response:
```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 cString = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
cString.initialize(from: tuple16, count: 16)
self = String(cString: cString)
cString.deallocate()
}
}
```cString.initialize(from: tuple16, count: 16) // cannot convert value of type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') to expected argument type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
self.init(data: data, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)
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'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)
self = String(data: data, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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)
self = String(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'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = tuple16.map { UInt8($0) }
self = String(bytes: bytes, encoding: .utf8)!
}
}### Instruction:
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.
### Response:
```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 bytes = tuple16.map { UInt8($0) }
self = String(bytes: bytes, encoding: .utf8)!
}
}
```let bytes = tuple16.map { UInt8($0) } // value of tuple type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') has no member 'map'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let cString = UnsafeMutablePointer<Int8>.allocate(capacity: 17)
cString.initialize(from: tuple16, count: 16)
cString[16] = 0
self = String(cString: cString)
cString.deinitialize(count: 17)
cString.deallocate()
}
}### Instruction:
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.
### Response:
```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 cString = UnsafeMutablePointer<Int8>.allocate(capacity: 17)
cString.initialize(from: tuple16, count: 16)
cString[16] = 0
self = String(cString: cString)
cString.deinitialize(count: 17)
cString.deallocate()
}
}
```cString.initialize(from: tuple16, count: 16) // cannot convert value of type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') to expected argument type 'UnsafePointer<Int8>'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = tuple16.map { UInt8($0) }
self = String(bytes: bytes, encoding: .ascii)!
}
}### Instruction:
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.
### Response:
```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 bytes = tuple16.map { UInt8($0) }
self = String(bytes: bytes, encoding: .ascii)!
}
}
```let bytes = tuple16.map { UInt8($0) } // value of tuple type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') has no member 'map'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
let memcmpResult = memcmp(lhsBaseAddress, rhsBaseAddress, size)
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
return memcmpResult == 0
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
let memcmpResult = memcmp(lhsBaseAddress, rhsBaseAddress, size)
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
return memcmpResult == 0
}
```guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard
lhs.width == rhs.width,
lhs.height == rhs.height,
lhs.formatDescription?.formatType == rhs.formatDescription?.formatType
else {
return false
}
let lhsData = CVPixelBufferLockBaseAddress(lhs, .readOnly)!
let rhsData = CVPixelBufferLockBaseAddress(rhs, .readOnly)!
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
return memcmp(lhsData, rhsData, size) == 0
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard
lhs.width == rhs.width,
lhs.height == rhs.height,
lhs.formatDescription?.formatType == rhs.formatDescription?.formatType
else {
return false
}
let lhsData = CVPixelBufferLockBaseAddress(lhs, .readOnly)!
let rhsData = CVPixelBufferLockBaseAddress(rhs, .readOnly)!
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
return memcmp(lhsData, rhsData, size) == 0
}
```lhs.width == rhs.width, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'lhs.width == rhs.width, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'lhs.height == rhs.height, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.height == rhs.height, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.formatDescription?.formatType == rhs.formatDescription?.formatType // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.formatType == rhs.formatDescription?.formatType // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'let lhsData = CVPixelBufferLockBaseAddress(lhs, .readOnly)! // cannot force unwrap value of non-optional type 'CVReturn' (aka 'Int32')let rhsData = CVPixelBufferLockBaseAddress(rhs, .readOnly)! // cannot force unwrap value of non-optional type 'CVReturn' (aka 'Int32')import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else {
return false
}
let lhsData = CVPixelBufferLockBaseAddress(lhs, .readOnly)!
let rhsData = CVPixelBufferLockBaseAddress(rhs, .readOnly)!
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
for i in 0..<height {
let lhsRow = lhsData + i * bytesPerRow
let rhsRow = rhsData + i * bytesPerRow
if memcmp(lhsRow, rhsRow, bytesPerRow) != 0 {
return false
}
}
return true
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else {
return false
}
let lhsData = CVPixelBufferLockBaseAddress(lhs, .readOnly)!
let rhsData = CVPixelBufferLockBaseAddress(rhs, .readOnly)!
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
for i in 0..<height {
let lhsRow = lhsData + i * bytesPerRow
let rhsRow = rhsData + i * bytesPerRow
if memcmp(lhsRow, rhsRow, bytesPerRow) != 0 {
return false
}
}
return true
}
```guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'let lhsData = CVPixelBufferLockBaseAddress(lhs, .readOnly)! // cannot force unwrap value of non-optional type 'CVReturn' (aka 'Int32')let rhsData = CVPixelBufferLockBaseAddress(rhs, .readOnly)! // cannot force unwrap value of non-optional type 'CVReturn' (aka 'Int32')import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
let lhsBuffer = UnsafeBufferPointer(start: lhsBaseAddress, count: size)
let rhsBuffer = UnsafeBufferPointer(start: rhsBaseAddress, count: size)
return memcmp(lhsBuffer.baseAddress, rhsBuffer.baseAddress, size) == 0
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
let lhsBuffer = UnsafeBufferPointer(start: lhsBaseAddress, count: size)
let rhsBuffer = UnsafeBufferPointer(start: rhsBaseAddress, count: size)
return memcmp(lhsBuffer.baseAddress, rhsBuffer.baseAddress, size) == 0
}
```guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'let lhsBuffer = UnsafeBufferPointer(start: lhsBaseAddress, count: size) // cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafePointer<Element>'let lhsBuffer = UnsafeBufferPointer(start: lhsBaseAddress, count: size) // generic parameter 'Element' could not be inferredlet rhsBuffer = UnsafeBufferPointer(start: rhsBaseAddress, count: size) // cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafePointer<Element>'let rhsBuffer = UnsafeBufferPointer(start: rhsBaseAddress, count: size) // generic parameter 'Element' could not be inferredimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
return memcmp(lhsBaseAddress, rhsBaseAddress, bytesPerRow * height) == 0
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
return memcmp(lhsBaseAddress, rhsBaseAddress, bytesPerRow * height) == 0
}
```guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
return memcmp(lhsBaseAddress, rhsBaseAddress, size) == 0
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
return memcmp(lhsBaseAddress, rhsBaseAddress, size) == 0
}
```guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription == rhs.formatDescription else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
let result = memcmp(lhsBaseAddress, rhsBaseAddress, size)
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
return result == 0
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else {
return false
}
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
let size = bytesPerRow * height
let result = memcmp(lhsBaseAddress, rhsBaseAddress, size)
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
return result == 0
}
```guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription.formatType == rhs.formatDescription.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) else { return false }
guard CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else { return false }
guard CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else { return false }
guard CVPixelBufferGetBytesPerRow(lhs) == CVPixelBufferGetBytesPerRow(rhs) else { return false }
guard CVPixelBufferGetPlaneCount(lhs) == CVPixelBufferGetPlaneCount(rhs) else { return false }
guard CVPixelBufferGetWidthOfPlane(lhs, 0) == CVPixelBufferGetWidthOfPlane(rhs, 0) else { return false }
guard CVPixelBufferGetHeightOfPlane(lhs, 0) == CVPixelBufferGetHeightOfPlane(rhs, 0) else { return false }
guard CVPixelBufferGetBytesPerRowOfPlane(lhs, 0) == CVPixelBufferGetBytesPerRowOfPlane(rhs, 0) else { return false }
guard CVPixelBufferGetBaseAddress(lhs) == CVPixelBufferGetBaseAddress(rhs) else { return false }
guard CVPixelBufferGetBaseAddressOfPlane(lhs, 0) == CVPixelBufferGetBaseAddressOfPlane(rhs, 0) else { return false }
return true
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) else { return false }
guard CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else { return false }
guard CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else { return false }
guard CVPixelBufferGetBytesPerRow(lhs) == CVPixelBufferGetBytesPerRow(rhs) else { return false }
guard CVPixelBufferGetPlaneCount(lhs) == CVPixelBufferGetPlaneCount(rhs) else { return false }
guard CVPixelBufferGetWidthOfPlane(lhs, 0) == CVPixelBufferGetWidthOfPlane(rhs, 0) else { return false }
guard CVPixelBufferGetHeightOfPlane(lhs, 0) == CVPixelBufferGetHeightOfPlane(rhs, 0) else { return false }
guard CVPixelBufferGetBytesPerRowOfPlane(lhs, 0) == CVPixelBufferGetBytesPerRowOfPlane(rhs, 0) else { return false }
guard CVPixelBufferGetBaseAddress(lhs) == CVPixelBufferGetBaseAddress(rhs) else { return false }
guard CVPixelBufferGetBaseAddressOfPlane(lhs, 0) == CVPixelBufferGetBaseAddressOfPlane(rhs, 0) else { return false }
return true
}
``` // XCTAssertFalse failedimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription?.formatType == rhs.formatDescription?.formatType else {
return false
}
let lhsPlaneCount = CVPixelBufferGetPlaneCount(lhs)
let rhsPlaneCount = CVPixelBufferGetPlaneCount(rhs)
guard lhsPlaneCount == rhsPlaneCount else {
return false
}
for planeIndex in 0..<lhsPlaneCount {
let lhsBaseAddress = CVPixelBufferGetBaseAddressOfPlane(lhs, planeIndex)
let rhsBaseAddress = CVPixelBufferGetBaseAddressOfPlane(rhs, planeIndex)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, planeIndex)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(rhs, planeIndex)
let lhsHeight = CVPixelBufferGetHeightOfPlane(lhs, planeIndex)
let rhsHeight = CVPixelBufferGetHeightOfPlane(rhs, planeIndex)
let lhsWidth = CVPixelBufferGetWidthOfPlane(lhs, planeIndex)
let rhsWidth = CVPixelBufferGetWidthOfPlane(rhs, planeIndex)
guard lhsBaseAddress != nil && rhsBaseAddress != nil && lhsBytesPerRow == rhsBytesPerRow && lhsHeight == rhsHeight && lhsWidth == rhsWidth else {
return false
}
let lhsBuffer = UnsafeBufferPointer(start: lhsBaseAddress, count: lhsBytesPerRow * lhsHeight)
let rhsBuffer = UnsafeBufferPointer(start: rhsBaseAddress, count: rhsBytesPerRow * rhsHeight)
guard lhsBuffer == rhsBuffer else {
return false
}
}
return true
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription?.formatType == rhs.formatDescription?.formatType else {
return false
}
let lhsPlaneCount = CVPixelBufferGetPlaneCount(lhs)
let rhsPlaneCount = CVPixelBufferGetPlaneCount(rhs)
guard lhsPlaneCount == rhsPlaneCount else {
return false
}
for planeIndex in 0..<lhsPlaneCount {
let lhsBaseAddress = CVPixelBufferGetBaseAddressOfPlane(lhs, planeIndex)
let rhsBaseAddress = CVPixelBufferGetBaseAddressOfPlane(rhs, planeIndex)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, planeIndex)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(rhs, planeIndex)
let lhsHeight = CVPixelBufferGetHeightOfPlane(lhs, planeIndex)
let rhsHeight = CVPixelBufferGetHeightOfPlane(rhs, planeIndex)
let lhsWidth = CVPixelBufferGetWidthOfPlane(lhs, planeIndex)
let rhsWidth = CVPixelBufferGetWidthOfPlane(rhs, planeIndex)
guard lhsBaseAddress != nil && rhsBaseAddress != nil && lhsBytesPerRow == rhsBytesPerRow && lhsHeight == rhsHeight && lhsWidth == rhsWidth else {
return false
}
let lhsBuffer = UnsafeBufferPointer(start: lhsBaseAddress, count: lhsBytesPerRow * lhsHeight)
let rhsBuffer = UnsafeBufferPointer(start: rhsBaseAddress, count: rhsBytesPerRow * rhsHeight)
guard lhsBuffer == rhsBuffer else {
return false
}
}
return true
}
```guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription?.formatType == rhs.formatDescription?.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription?.formatType == rhs.formatDescription?.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription?.formatType == rhs.formatDescription?.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription?.formatType == rhs.formatDescription?.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription?.formatType == rhs.formatDescription?.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width && lhs.height == rhs.height && lhs.formatDescription?.formatType == rhs.formatDescription?.formatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'let lhsBuffer = UnsafeBufferPointer(start: lhsBaseAddress, count: lhsBytesPerRow * lhsHeight) // cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafePointer<Element>'let lhsBuffer = UnsafeBufferPointer(start: lhsBaseAddress, count: lhsBytesPerRow * lhsHeight) // generic parameter 'Element' could not be inferredlet rhsBuffer = UnsafeBufferPointer(start: rhsBaseAddress, count: rhsBytesPerRow * rhsHeight) // generic parameter 'Element' could not be inferredlet rhsBuffer = UnsafeBufferPointer(start: rhsBaseAddress, count: rhsBytesPerRow * rhsHeight) // cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'UnsafePointer<Element>'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) else { return false }
guard CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else { return false }
guard CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else { return false }
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
return memcmp(lhsBaseAddress, rhsBaseAddress, bytesPerRow * height) == 0
}### Instruction:
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.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs) else { return false }
guard CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else { return false }
guard CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else { return false }
CVPixelBufferLockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferLockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
defer {
CVPixelBufferUnlockBaseAddress(lhs, CVPixelBufferLockFlags(rawValue: 0))
CVPixelBufferUnlockBaseAddress(rhs, CVPixelBufferLockFlags(rawValue: 0))
}
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let height = CVPixelBufferGetHeight(lhs)
return memcmp(lhsBaseAddress, rhsBaseAddress, bytesPerRow * height) == 0
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { PublicItem(value: $0.value) }
}### Instruction:
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.
### Response:
```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.map { PublicItem(value: $0.value) }
}
```return items.map { PublicItem(value: $0.value) } // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { PublicItem(value: $0.value) }
}### Instruction:
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.
### Response:
```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.map { PublicItem(value: $0.value) }
}
```return items.map { PublicItem(value: $0.value) } // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { PublicItem(value: $0.value) }
}### Instruction:
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.
### Response:
```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.map { PublicItem(value: $0.value) }
}
```return items.map { PublicItem(value: $0.value) } // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { PublicItem(value: $0.value) }
}### Instruction:
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.
### Response:
```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.map { PublicItem(value: $0.value) }
}
```return items.map { PublicItem(value: $0.value) } // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { PublicItem(value: $0.value) }
}### Instruction:
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.
### Response:
```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.map { PublicItem(value: $0.value) }
}
```return items.map { PublicItem(value: $0.value) } // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items, count: items.count)
let bufferSize = items.count * MemoryLayout<PrivateItem>.stride
let bufferAddress = UnsafeRawPointer(buffer.baseAddress)
let publicItems = bufferAddress.bindMemory(to: PublicItem.self, capacity: bufferSize)
return Array(publicItems)
}### Instruction:
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.
### Response:
```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 = UnsafeBufferPointer(start: items, count: items.count)
let bufferSize = items.count * MemoryLayout<PrivateItem>.stride
let bufferAddress = UnsafeRawPointer(buffer.baseAddress)
let publicItems = bufferAddress.bindMemory(to: PublicItem.self, capacity: bufferSize)
return Array(publicItems)
}
```let buffer = UnsafeBufferPointer(start: items, count: items.count) // initialization of 'UnsafeBufferPointer<PrivateItem>' results in a dangling buffer pointerlet publicItems = bufferAddress.bindMemory(to: PublicItem.self, capacity: bufferSize) // value of optional type 'UnsafeRawPointer?' must be unwrapped to refer to member 'bindMemory' of wrapped base type 'UnsafeRawPointer'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items, count: items.count)
let publicItems = UnsafeBufferPointer<PublicItem>(start: buffer.baseAddress, count: buffer.count)
return Array(publicItems)
}### Instruction:
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.
### Response:
```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 = UnsafeBufferPointer(start: items, count: items.count)
let publicItems = UnsafeBufferPointer<PublicItem>(start: buffer.baseAddress, count: buffer.count)
return Array(publicItems)
}
```let buffer = UnsafeBufferPointer(start: items, count: items.count) // initialization of 'UnsafeBufferPointer<PrivateItem>' results in a dangling buffer pointerlet publicItems = UnsafeBufferPointer<PublicItem>(start: buffer.baseAddress, count: buffer.count) // cannot convert value of type 'UnsafePointer<PrivateItem>' to expected argument type 'UnsafePointer<PublicItem>'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { PublicItem(value: $0.value) }
}### Instruction:
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.
### Response:
```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.map { PublicItem(value: $0.value) }
}
```return items.map { PublicItem(value: $0.value) } // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items, count: items.count)
let rawBuffer = UnsafeRawBufferPointer(buffer)
let publicItems = rawBuffer.bindMemory(to: PublicItem.self)
return Array(publicItems)
}### Instruction:
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.
### Response:
```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 = UnsafeBufferPointer(start: items, count: items.count)
let rawBuffer = UnsafeRawBufferPointer(buffer)
let publicItems = rawBuffer.bindMemory(to: PublicItem.self)
return Array(publicItems)
}
```let buffer = UnsafeBufferPointer(start: items, count: items.count) // initialization of 'UnsafeBufferPointer<PrivateItem>' results in a dangling buffer pointerstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items, count: items.count)
let bytes = UnsafeRawBufferPointer(buffer)
let publicItems = bytes.bindMemory(to: PublicItem.self)
return Array(publicItems)
}### Instruction:
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.
### Response:
```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 = UnsafeBufferPointer(start: items, count: items.count)
let bytes = UnsafeRawBufferPointer(buffer)
let publicItems = bytes.bindMemory(to: PublicItem.self)
return Array(publicItems)
}
```let buffer = UnsafeBufferPointer(start: items, count: items.count) // initialization of 'UnsafeBufferPointer<PrivateItem>' results in a dangling buffer pointerenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
// ...
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
// ...
}
```} // missing return in global function expected to return 'ComparisonResult'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsVersion = lhs.components(separatedBy: ".").map { Int($0)! }
let rhsVersion = rhs.components(separatedBy: ".").map { Int($0)! }
let minLength = min(lhsVersion.count, rhsVersion.count)
for i in 0..<minLength {
if lhsVersion[i] < rhsVersion[i] {
return .orderedAscending
} else if lhsVersion[i] > rhsVersion[i] {
return .orderedDescending
}
}
if lhsVersion.count < rhsVersion.count {
return .orderedAscending
} else if lhsVersion.count > rhsVersion.count {
return .orderedDescending
}
return .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsVersion = lhs.components(separatedBy: ".").map { Int($0)! }
let rhsVersion = rhs.components(separatedBy: ".").map { Int($0)! }
let minLength = min(lhsVersion.count, rhsVersion.count)
for i in 0..<minLength {
if lhsVersion[i] < rhsVersion[i] {
return .orderedAscending
} else if lhsVersion[i] > rhsVersion[i] {
return .orderedDescending
}
}
if lhsVersion.count < rhsVersion.count {
return .orderedAscending
} else if lhsVersion.count > rhsVersion.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhs = lhs.split(separator: "-")
let rhs = rhs.split(separator: "-")
let lhsVersion = lhs[0].split(separator: ".").map { Int($0)! }
let rhsVersion = rhs[0].split(separator: ".").map { Int($0)! }
let lhsTag = lhs.count > 1 ? lhs[1] : ""
let rhsTag = rhs.count > 1 ? rhs[1] : ""
let lhsTagType = lhsTag.hasPrefix("alpha") ? "alpha" : lhsTag.hasPrefix("beta") ? "beta" : ""
let rhsTagType = rhsTag.hasPrefix("alpha") ? "alpha" : rhsTag.hasPrefix("beta") ? "beta" : ""
let lhsTagNumber = lhsTagType.isEmpty ? 0 : Int(lhsTag.dropFirst(lhsTagType.count))!
let rhsTagNumber = rhsTagType.isEmpty ? 0 : Int(rhsTag.dropFirst(rhsTagType.count))!
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
if lhsTagType != rhsTagType {
return lhsTagType < rhsTagType ? .orderedAscending : .orderedDescending
}
if lhsTagNumber != rhsTagNumber {
return lhsTagNumber < rhsTagNumber ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhs = lhs.split(separator: "-")
let rhs = rhs.split(separator: "-")
let lhsVersion = lhs[0].split(separator: ".").map { Int($0)! }
let rhsVersion = rhs[0].split(separator: ".").map { Int($0)! }
let lhsTag = lhs.count > 1 ? lhs[1] : ""
let rhsTag = rhs.count > 1 ? rhs[1] : ""
let lhsTagType = lhsTag.hasPrefix("alpha") ? "alpha" : lhsTag.hasPrefix("beta") ? "beta" : ""
let rhsTagType = rhsTag.hasPrefix("alpha") ? "alpha" : rhsTag.hasPrefix("beta") ? "beta" : ""
let lhsTagNumber = lhsTagType.isEmpty ? 0 : Int(lhsTag.dropFirst(lhsTagType.count))!
let rhsTagNumber = rhsTagType.isEmpty ? 0 : Int(rhsTag.dropFirst(rhsTagType.count))!
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
if lhsTagType != rhsTagType {
return lhsTagType < rhsTagType ? .orderedAscending : .orderedDescending
}
if lhsTagNumber != rhsTagNumber {
return lhsTagNumber < rhsTagNumber ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
```return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending // binary operator '<' cannot be applied to two '[Int]' operandsenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhs = lhs.split(separator: ".").map { Int($0)! }
let rhs = rhs.split(separator: ".").map { Int($0)! }
let minLength = min(lhs.count, rhs.count)
for i in 0..<minLength {
if lhs[i] < rhs[i] {
return .orderedAscending
} else if lhs[i] > rhs[i] {
return .orderedDescending
}
}
if lhs.count < rhs.count {
return .orderedAscending
} else if lhs.count > rhs.count {
return .orderedDescending
}
return .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhs = lhs.split(separator: ".").map { Int($0)! }
let rhs = rhs.split(separator: ".").map { Int($0)! }
let minLength = min(lhs.count, rhs.count)
for i in 0..<minLength {
if lhs[i] < rhs[i] {
return .orderedAscending
} else if lhs[i] > rhs[i] {
return .orderedDescending
}
}
if lhs.count < rhs.count {
return .orderedAscending
} else if lhs.count > rhs.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsArray = lhs.components(separatedBy: ".")
let rhsArray = rhs.components(separatedBy: ".")
let maxCount = max(lhsArray.count, rhsArray.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsArray.count ? lhsArray[i] : "0"
let rhsComponent = i < rhsArray.count ? rhsArray[i] : "0"
let lhsNumber = Int(lhsComponent) ?? 0
let rhsNumber = Int(rhsComponent) ?? 0
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
return .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsArray = lhs.components(separatedBy: ".")
let rhsArray = rhs.components(separatedBy: ".")
let maxCount = max(lhsArray.count, rhsArray.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsArray.count ? lhsArray[i] : "0"
let rhsComponent = i < rhsArray.count ? rhsArray[i] : "0"
let lhsNumber = Int(lhsComponent) ?? 0
let rhsNumber = Int(rhsComponent) ?? 0
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsArray = lhs.split(separator: ".")
let rhsArray = rhs.split(separator: ".")
let lhsLength = lhsArray.count
let rhsLength = rhsArray.count
var i = 0
while i < lhsLength && i < rhsLength {
let lhsNumber = Int(lhsArray[i]) ?? 0
let rhsNumber = Int(rhsArray[i]) ?? 0
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
i += 1
}
if lhsLength < rhsLength {
return .orderedAscending
} else if lhsLength > rhsLength {
return .orderedDescending
}
return .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsArray = lhs.split(separator: ".")
let rhsArray = rhs.split(separator: ".")
let lhsLength = lhsArray.count
let rhsLength = rhsArray.count
var i = 0
while i < lhsLength && i < rhsLength {
let lhsNumber = Int(lhsArray[i]) ?? 0
let rhsNumber = Int(rhsArray[i]) ?? 0
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
i += 1
}
if lhsLength < rhsLength {
return .orderedAscending
} else if lhsLength > rhsLength {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsArray = lhs.split(separator: ".").map { Int($0)! }
let rhsArray = rhs.split(separator: ".").map { Int($0)! }
let minLength = min(lhsArray.count, rhsArray.count)
for i in 0..<minLength {
if lhsArray[i] > rhsArray[i] {
return .orderedDescending
} else if lhsArray[i] < rhsArray[i] {
return .orderedAscending
}
}
if lhsArray.count > rhsArray.count {
return .orderedDescending
} else if lhsArray.count < rhsArray.count {
return .orderedAscending
}
return .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsArray = lhs.split(separator: ".").map { Int($0)! }
let rhsArray = rhs.split(separator: ".").map { Int($0)! }
let minLength = min(lhsArray.count, rhsArray.count)
for i in 0..<minLength {
if lhsArray[i] > rhsArray[i] {
return .orderedDescending
} else if lhsArray[i] < rhsArray[i] {
return .orderedAscending
}
}
if lhsArray.count > rhsArray.count {
return .orderedDescending
} else if lhsArray.count < rhsArray.count {
return .orderedAscending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsVersion = lhs.components(separatedBy: ".")
let rhsVersion = rhs.components(separatedBy: ".")
let lhsAlphaIndex = lhsVersion.firstIndex(where: { $0.contains("-") }) ?? lhsVersion.endIndex
let lhsBetaIndex = lhsVersion.firstIndex(where: { $0.contains("+") }) ?? lhsVersion.endIndex
let rhsAlphaIndex = rhsVersion.firstIndex(where: { $0.contains("-") }) ?? rhsVersion.endIndex
let rhsBetaIndex = rhsVersion.firstIndex(where: { $0.contains("+") }) ?? rhsVersion.endIndex
let lhsVersionNumber = lhsVersion[0..<min(lhsAlphaIndex, lhsBetaIndex)]
let rhsVersionNumber = rhsVersion[0..<min(rhsAlphaIndex, rhsBetaIndex)]
let lhsAlpha = lhsVersion[lhsAlphaIndex..<lhsBetaIndex]
let rhsAlpha = rhsVersion[rhsAlphaIndex..<rhsBetaIndex]
let lhsBeta = lhsVersion[lhsBetaIndex..<lhsVersion.endIndex]
let rhsBeta = rhsVersion[rhsBetaIndex..<rhsVersion.endIndex]
let lhsVersionNumberResult = lhsVersionNumber.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareVersionNumber(element, rhsVersion[rhsVersion.startIndex]) : result
}
let rhsVersionNumberResult = rhsVersionNumber.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareVersionNumber(element, lhsVersion[lhsVersion.startIndex]) : result
}
let lhsAlphaResult = lhsAlpha.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareAlpha(element, rhsVersion[rhsAlphaIndex]) : result
}
let rhsAlphaResult = rhsAlpha.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareAlpha(element, lhsVersion[lhsAlphaIndex]) : result
}
let lhsBetaResult = lhsBeta.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareBeta(element, rhsVersion[rhsBetaIndex]) : result
}
let rhsBetaResult = rhsBeta.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareBeta(element, lhsVersion[lhsBetaIndex]) : result
}
return [lhsVersionNumberResult, rhsVersionNumberResult, lhsAlphaResult, rhsAlphaResult, lhsBetaResult, rhsBetaResult].reduce(.orderedSame) { (result, element) in
return result == .orderedSame ? element : result
}
}
func compareVersionNumber(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsNumber = Int(lhs) ?? 0
let rhsNumber = Int(rhs) ?? 0
return lhsNumber < rhsNumber ? .orderedAscending : lhsNumber > rhsNumber ? .orderedDescending : .orderedSame
}
func compareAlpha(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsAlpha = lhs.components(separatedBy: "-")[1]
let rhsAlpha = rhs.components(separatedBy: "-")[1]
return lhsAlpha < rhsAlpha ? .orderedAscending : lhsAlpha > rhsAlpha ? .orderedDescending : .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsVersion = lhs.components(separatedBy: ".")
let rhsVersion = rhs.components(separatedBy: ".")
let lhsAlphaIndex = lhsVersion.firstIndex(where: { $0.contains("-") }) ?? lhsVersion.endIndex
let lhsBetaIndex = lhsVersion.firstIndex(where: { $0.contains("+") }) ?? lhsVersion.endIndex
let rhsAlphaIndex = rhsVersion.firstIndex(where: { $0.contains("-") }) ?? rhsVersion.endIndex
let rhsBetaIndex = rhsVersion.firstIndex(where: { $0.contains("+") }) ?? rhsVersion.endIndex
let lhsVersionNumber = lhsVersion[0..<min(lhsAlphaIndex, lhsBetaIndex)]
let rhsVersionNumber = rhsVersion[0..<min(rhsAlphaIndex, rhsBetaIndex)]
let lhsAlpha = lhsVersion[lhsAlphaIndex..<lhsBetaIndex]
let rhsAlpha = rhsVersion[rhsAlphaIndex..<rhsBetaIndex]
let lhsBeta = lhsVersion[lhsBetaIndex..<lhsVersion.endIndex]
let rhsBeta = rhsVersion[rhsBetaIndex..<rhsVersion.endIndex]
let lhsVersionNumberResult = lhsVersionNumber.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareVersionNumber(element, rhsVersion[rhsVersion.startIndex]) : result
}
let rhsVersionNumberResult = rhsVersionNumber.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareVersionNumber(element, lhsVersion[lhsVersion.startIndex]) : result
}
let lhsAlphaResult = lhsAlpha.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareAlpha(element, rhsVersion[rhsAlphaIndex]) : result
}
let rhsAlphaResult = rhsAlpha.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareAlpha(element, lhsVersion[lhsAlphaIndex]) : result
}
let lhsBetaResult = lhsBeta.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareBeta(element, rhsVersion[rhsBetaIndex]) : result
}
let rhsBetaResult = rhsBeta.reduce(ComparisonResult.orderedSame) { (result, element) in
return result == .orderedSame ? compareBeta(element, lhsVersion[lhsBetaIndex]) : result
}
return [lhsVersionNumberResult, rhsVersionNumberResult, lhsAlphaResult, rhsAlphaResult, lhsBetaResult, rhsBetaResult].reduce(.orderedSame) { (result, element) in
return result == .orderedSame ? element : result
}
}
func compareVersionNumber(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsNumber = Int(lhs) ?? 0
let rhsNumber = Int(rhs) ?? 0
return lhsNumber < rhsNumber ? .orderedAscending : lhsNumber > rhsNumber ? .orderedDescending : .orderedSame
}
func compareAlpha(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsAlpha = lhs.components(separatedBy: "-")[1]
let rhsAlpha = rhs.components(separatedBy: "-")[1]
return lhsAlpha < rhsAlpha ? .orderedAscending : lhsAlpha > rhsAlpha ? .orderedDescending : .orderedSame
}
func compareBeta(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsBeta = lhs.components(separatedBy: "+")[1]
let rhsBeta = rhs.components(separatedBy: "+")[1]
return lhsBeta < rhsBeta ? .orderedAscending : lreturn result == .orderedSame ? compareBeta(element, rhsVersion[rhsBetaIndex]) : result // cannot find 'compareBeta' in scopereturn result == .orderedSame ? compareBeta(element, lhsVersion[lhsBetaIndex]) : result // cannot find 'compareBeta' in scopeenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhs = lhs.components(separatedBy: ".").map { Int($0)! }
let rhs = rhs.components(separatedBy: ".").map { Int($0)! }
for (l, r) in zip(lhs, rhs) {
if l < r {
return .orderedAscending
} else if l > r {
return .orderedDescending
}
}
if lhs.count < rhs.count {
return .orderedAscending
} else if lhs.count > rhs.count {
return .orderedDescending
}
return .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhs = lhs.components(separatedBy: ".").map { Int($0)! }
let rhs = rhs.components(separatedBy: ".").map { Int($0)! }
for (l, r) in zip(lhs, rhs) {
if l < r {
return .orderedAscending
} else if l > r {
return .orderedDescending
}
}
if lhs.count < rhs.count {
return .orderedAscending
} else if lhs.count > rhs.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsArray = lhs.split(separator: ".").map { Int($0)! }
let rhsArray = rhs.split(separator: ".").map { Int($0)! }
let minLength = min(lhsArray.count, rhsArray.count)
for i in 0..<minLength {
if lhsArray[i] < rhsArray[i] {
return .orderedAscending
} else if lhsArray[i] > rhsArray[i] {
return .orderedDescending
}
}
if lhsArray.count < rhsArray.count {
return .orderedAscending
} else if lhsArray.count > rhsArray.count {
return .orderedDescending
}
return .orderedSame
}### Instruction:
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.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsArray = lhs.split(separator: ".").map { Int($0)! }
let rhsArray = rhs.split(separator: ".").map { Int($0)! }
let minLength = min(lhsArray.count, rhsArray.count)
for i in 0..<minLength {
if lhsArray[i] < rhsArray[i] {
return .orderedAscending
} else if lhsArray[i] > rhsArray[i] {
return .orderedDescending
}
}
if lhsArray.count < rhsArray.count {
return .orderedAscending
} else if lhsArray.count > rhsArray.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failed