Metadata
| Key | Value |
|---|---|
| engine | transformers |
| prompt | default |
| temp | 0.2 |
| top_p | 0.95 |
| max_new_tokens | 1024 |
| n_completions | 10 |
Solutions
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(name)>"
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(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):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(name)>"
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
if !children.isEmpty {
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
} else {
html += "/>"
}
return html
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
if !children.isEmpty {
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
} else {
html += "/>"
}
return html
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(name)>"
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(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):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
if !children.isEmpty {
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
} else {
html += "/>"
}
return html
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
if !children.isEmpty {
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
} else {
html += "/>"
}
return html
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childNodes = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childNodes)</\(name)>"
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childNodes = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childNodes)</\(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):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childNodes = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childNodes)</\(name)>"
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childNodes = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childNodes)</\(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):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childNodes = children.map { generate($0) }.joined()
return "<\(name)\(attributeString)>\(childNodes)</\(name)>"
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childNodes = children.map { generate($0) }.joined()
return "<\(name)\(attributeString)>\(childNodes)</\(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):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(name)>"
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(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):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(name)>"
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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>"
assistant
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attributeString = ""
for (key, value) in attributes {
attributeString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attributeString)>\(childContent)</\(name)>"
}
}
```
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
for token in tokens {
switch token {
case .number(let value):
stack.append(value)
case .operator(let op):
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else {
throw CalculateError.invalidInput
}
let result = applyOperation(leftOperand, rightOperand, op)
stack.append(result)
}
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
private func tokenize(_ string: String) -> [Token] {
var tokens: [Token] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber += String(char)
} else if let operatorType = OperatorType(rawValue: String(char)) {
if !currentNumber.isEmpty {
tokens.append(.number(Double(currentNumber)!))
currentNumber = ""
}
tokens.append(.operator(operatorType))
} else if char == " " {
continue
} else {
throw CalculateError.invalidInput
}
}
if !currentNumber.isEmpty {
tokens.append(.number(Double(currentNumber)!))
}
return tokens
}
private func applyOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorType: OperatorType) -> Double {
switch operatorType {
case .add:
return leftOperand + rightOperand
case .subtract:
return leftOperand - rightOperand
case .multiply:
return leftOperand * rightOperand
case .divide:
guard rightOperand != 0 else { fatalError("Division by zero") }
return leftOperand / rightOperand
}
}
private enum Token {
case number(Double)
case operator(OperatorType)
}
private enum OperatorType: String {
case add = "+"
case subtract = "-"
case multiply = "*"
case divide = "/"
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
for token in tokens {
switch token {
case .number(let value):
stack.append(value)
case .operator(let op):
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else {
throw CalculateError.invalidInput
}
let result = applyOperation(leftOperand, rightOperand, op)
stack.append(result)
}
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
private func tokenize(_ string: String) -> [Token] {
var tokens: [Token] = []
var currentNumber = ""
for char in string {
if char.isNumber || char == "." {
currentNumber += String(char)
} else if let operatorType = OperatorType(rawValue: String(char)) {
if !currentNumber.isEmpty {
tokens.append(.number(Double(currentNumber)!))
currentNumber = ""
}
tokens.append(.operator(operatorType))
} else if char == " " {
continue
} else {
throw CalculateError.invalidInput
}
}
if !currentNumber.isEmpty {
tokens.append(.number(Double(currentNumber)!))
}
return tokens
}
private func applyOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorType: OperatorType) -> Double {
switch operatorType {
case .add:
return leftOperand + rightOperand
case .subtract:
return leftOperand - rightOperand
case .multiply:
return leftOperand * rightOperand
case .divide:
guard rightOperand != 0 else { fatalError("Division by zero") }
return leftOperand / rightOperand
}
}
private enum Token {
case number(Double)
case operator(OperatorType)
}
private enum OperatorType: String {
case add = "+"
case subtract = "-"
case multiply = "*"
case divide = "/"
}
```
throw CalculateError.invalidInput // error is not handled because the enclosing function is not declared 'throws'case operator(OperatorType) // keyword 'operator' cannot be used as an identifier hereenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken = ""
for char in string {
if char.isNumber || char == "." {
currentToken += String(char)
} else if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
if ["+", "-", "*", "/", "("].contains(String(char)) {
result.append(String(char))
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if let operatorChar = token.first {
while !operators.isEmpty && precedence(operators.last!) >= precedence(operatorChar) {
let right = stack.removeLast()
let left = stack.removeLast()
let result = applyOperation(left, right, operators.removeLast())
stack.append(result)
}
operators.append(operatorChar)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.popLast(), lastOperator != "(" {
let right = stack.removeLast()
let left = stack.removeLast()
let result = applyOperation(left, right, lastOperator)
stack.append(result)
}
}
}
while !operators.isEmpty {
let right = stack.removeLast()
let left = stack.removeLast()
let result = applyOperation(left, right, operators.removeLast())
stack.append(result)
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ op: Character) -> Int {
switch op {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ left: Double, _ right: Double, _ op: Character) -> Double {
switch op {
case "+":
return left + right
case "-":
return left - right
case "*":
return left * right
case "/":
return left / right
default:
fatalError("Invalid operation")
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken = ""
for char in string {
if char.isNumber || char == "." {
currentToken += String(char)
} else if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
if ["+", "-", "*", "/", "("].contains(String(char)) {
result.append(String(char))
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if let operatorChar = token.first {
while !operators.isEmpty && precedence(operators.last!) >= precedence(operatorChar) {
let right = stack.removeLast()
let left = stack.removeLast()
let result = applyOperation(left, right, operators.removeLast())
stack.append(result)
}
operators.append(operatorChar)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.popLast(), lastOperator != "(" {
let right = stack.removeLast()
let left = stack.removeLast()
let result = applyOperation(left, right, lastOperator)
stack.append(result)
}
}
}
while !operators.isEmpty {
let right = stack.removeLast()
let left = stack.removeLast()
let result = applyOperation(left, right, operators.removeLast())
stack.append(result)
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ op: Character) -> Int {
switch op {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ left: Double, _ right: Double, _ op: Character) -> Double {
switch op {
case "+":
return left + right
case "-":
return left - right
case "*":
return left * right
case "/":
return left / right
default:
fatalError("Invalid operation")
}
}
```
return evaluate(tokens) // call can throw but is not marked with 'try'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "+" || char == "-" || char == "*" || char == "/" || char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if let operatorChar = token.first {
while !operators.isEmpty && precedence(operators.last!) >= precedence(operatorChar) {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, operators.removeLast())
stack.append(result)
}
operators.append(operatorChar)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.popLast(), lastOperator != "(" {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
}
// Remove the '(' from the stack
_ = operators.popLast()
}
}
while !operators.isEmpty {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, operators.removeLast())
stack.append(result)
}
guard let finalResult = stack.popLast() else {
throw CalculateError.invalidInput
}
return finalResult
}
private func precedence(_ op: Character) -> Int {
switch op {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
fatalError("Invalid operator")
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "+" || char == "-" || char == "*" || char == "/" || char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if let operatorChar = token.first {
while !operators.isEmpty && precedence(operators.last!) >= precedence(operatorChar) {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, operators.removeLast())
stack.append(result)
}
operators.append(operatorChar)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.popLast(), lastOperator != "(" {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
}
// Remove the '(' from the stack
_ = operators.popLast()
}
}
while !operators.isEmpty {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, operators.removeLast())
stack.append(result)
}
guard let finalResult = stack.popLast() else {
throw CalculateError.invalidInput
}
return finalResult
}
private func precedence(_ op: Character) -> Int {
switch op {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
fatalError("Invalid operator")
}
}
```
return evaluate(tokens) // call can throw but is not marked with 'try'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let operatorChar = operators.popLast(), operatorChar != "(" {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, operatorChar)
stack.append(result)
}
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)) {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
operators.removeLast()
}
operators.append(Character(token))
}
}
while let operatorChar = operators.popLast() {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, operatorChar)
stack.append(result)
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
fatalError("Invalid operator")
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let operatorChar = operators.popLast(), operatorChar != "(" {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, operatorChar)
stack.append(result)
}
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)) {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
operators.removeLast()
}
operators.append(Character(token))
}
}
while let operatorChar = operators.popLast() {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, operatorChar)
stack.append(result)
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
fatalError("Invalid operator")
}
}
```
return evaluate(tokens) // call can throw but is not marked with 'try'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "+" || char == "-" || char == "*" || char == "/" || char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)) {
applyOperation(&stack, &operators)
}
operators.append(Character(token))
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast(), let operatorChar = operators.popLast() else {
return
}
let result = performOperation(leftOperand, rightOperand, operatorChar)
stack.append(result)
}
private func performOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
fatalError("Invalid operator")
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "+" || char == "-" || char == "*" || char == "/" || char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)) {
applyOperation(&stack, &operators)
}
operators.append(Character(token))
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast(), let operatorChar = operators.popLast() else {
return
}
let result = performOperation(leftOperand, rightOperand, operatorChar)
stack.append(result)
}
private func performOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
fatalError("Invalid operator")
}
}
```
return evaluate(tokens) // call can throw but is not marked with 'try'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken = ""
for char in string {
if char.isNumber || char == "." {
currentToken += String(char)
} else if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
if char != " " {
result.append(String(char))
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token.first!) {
applyOperation(&stack, &operators)
}
operators.append(token.first!)
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
guard let operatorChar = operators.popLast() else { return }
switch operatorChar {
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
default:
break
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken = ""
for char in string {
if char.isNumber || char == "." {
currentToken += String(char)
} else if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
if char != " " {
result.append(String(char))
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token.first!) {
applyOperation(&stack, &operators)
}
operators.append(token.first!)
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
guard let operatorChar = operators.popLast() else { return }
switch operatorChar {
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
default:
break
}
}
```
// XCTAssertEqual failed: (2.0) is not equal to (4.0)enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "+" || char == "-" || char == "*" || char == "/" || char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
operators.removeLast()
}
operators.removeLast() // Remove the '('
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token[token.index(token.startIndex, offsetBy: 0)]) {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
operators.removeLast()
}
operators.append(token[token.index(token.startIndex, offsetBy: 0)])
}
}
while let lastOperator = operators.last {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
operators.removeLast()
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
guard rightOperand != 0 else {
fatalError("Division by zero")
}
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
fatalError("Invalid operator")
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "+" || char == "-" || char == "*" || char == "/" || char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
operators.removeLast()
}
operators.removeLast() // Remove the '('
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token[token.index(token.startIndex, offsetBy: 0)]) {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
operators.removeLast()
}
operators.append(token[token.index(token.startIndex, offsetBy: 0)])
}
}
while let lastOperator = operators.last {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperation(leftOperand, rightOperand, lastOperator)
stack.append(result)
operators.removeLast()
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
guard rightOperand != 0 else {
fatalError("Division by zero")
}
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
fatalError("Invalid operator")
}
}
```
return evaluate(tokens) // call can throw but is not marked with 'try'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
switch char {
case "+", "-", "*", "/", "(", ")":
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
default:
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if let operatorChar = token.first {
while !operators.isEmpty && precedence(operators.last!) >= precedence(operatorChar) {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperator(leftOperand, rightOperand, operators.removeLast())
stack.append(result)
}
operators.append(operatorChar)
}
}
while !operators.isEmpty {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperator(leftOperand, rightOperand, operators.removeLast())
stack.append(result)
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ op: Character) -> Int {
switch op {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperator(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
case "*":
return leftOperand * rightOperand
case "/":
guard rightOperand != 0 else {
fatalError("Division by zero")
}
return leftOperand / rightOperand
default:
fatalError("Invalid operator")
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
switch char {
case "+", "-", "*", "/", "(", ")":
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
default:
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if let operatorChar = token.first {
while !operators.isEmpty && precedence(operators.last!) >= precedence(operatorChar) {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperator(leftOperand, rightOperand, operators.removeLast())
stack.append(result)
}
operators.append(operatorChar)
}
}
while !operators.isEmpty {
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
let result = applyOperator(leftOperand, rightOperand, operators.removeLast())
stack.append(result)
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
private func precedence(_ op: Character) -> Int {
switch op {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperator(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
case "*":
return leftOperand * rightOperand
case "/":
guard rightOperand != 0 else {
fatalError("Division by zero")
}
return leftOperand / rightOperand
default:
fatalError("Invalid operator")
}
}
```
return evaluate(tokens) // call can throw but is not marked with 'try'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "(" || char == ")" || char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if let operatorChar = token.first {
while !operators.isEmpty && precedence(operators.last!) >= precedence(operatorChar) {
if let rightOperand = stack.popLast(), let leftOperand = stack.popLast() {
stack.append(evaluateOperation(leftOperand, rightOperand, operators.removeLast()))
}
}
operators.append(operatorChar)
}
}
while !operators.isEmpty {
if let rightOperand = stack.popLast(), let leftOperand = stack.popLast() {
stack.append(evaluateOperation(leftOperand, rightOperand, operators.removeLast()))
}
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func evaluateOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
guard rightOperand != 0 else { throw CalculateError.invalidInput }
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
throw CalculateError.invalidInput
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "(" || char == ")" || char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if let operatorChar = token.first {
while !operators.isEmpty && precedence(operators.last!) >= precedence(operatorChar) {
if let rightOperand = stack.popLast(), let leftOperand = stack.popLast() {
stack.append(evaluateOperation(leftOperand, rightOperand, operators.removeLast()))
}
}
operators.append(operatorChar)
}
}
while !operators.isEmpty {
if let rightOperand = stack.popLast(), let leftOperand = stack.popLast() {
stack.append(evaluateOperation(leftOperand, rightOperand, operators.removeLast()))
}
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func evaluateOperation(_ leftOperand: Double, _ rightOperand: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "*":
return leftOperand * rightOperand
case "/":
guard rightOperand != 0 else { throw CalculateError.invalidInput }
return leftOperand / rightOperand
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
default:
throw CalculateError.invalidInput
}
}
```
let tokens = tokenize(string) // constant 'tokens' inferred to have type '()', which may be unexpectedreturn evaluate(tokens) // cannot convert value of type '()' to expected argument type '[String]'private func tokenize(_ string: String) [String] { // consecutive statements on a line must be separated by ';'private func tokenize(_ string: String) [String] { // closure expression is unusedprivate func tokenize(_ string: String) [String] { // expression of type '[String].Type' is unusedprivate func tokenize(_ string: String) [String] { // top-level statement cannot begin with a closure expressionprivate func tokenize(_ string: String) [String] { // expected member name or constructor call after type nameprivate func tokenize(_ string: String) [String] { // consecutive statements on a line must be separated by ';'private func tokenize(_ string: String) [String] { // expected '{' in body of function declarationfor char in string { // cannot find 'string' in scopeguard rightOperand != 0 else { throw CalculateError.invalidInput } // error is not handled because the enclosing function is not declared 'throws'throw CalculateError.invalidInput // error is not handled because the enclosing function is not declared 'throws'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(a, b, lastOperator))
operators.removeLast()
}
operators.removeLast() // Remove the '('
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token))! {
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(a, b, lastOperator))
operators.removeLast()
}
operators.append(Character(token))
}
}
while let operatorChar = operators.last {
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(a, b, operatorChar))
operators.removeLast()
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
private func applyOperation(_ a: Double, _ b: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "+":
return a + b
case "-":
return a - b
case "*":
return a * b
case "/":
return a / b
default:
fatalError("Invalid operator")
}
}
private func precedence(_ operatorChar: Character) -> Int? {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return nil
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
}
if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) throws -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(a, b, lastOperator))
operators.removeLast()
}
operators.removeLast() // Remove the '('
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token))! {
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(a, b, lastOperator))
operators.removeLast()
}
operators.append(Character(token))
}
}
while let operatorChar = operators.last {
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(applyOperation(a, b, operatorChar))
operators.removeLast()
}
guard let result = stack.first else {
throw CalculateError.invalidInput
}
return result
}
private func applyOperation(_ a: Double, _ b: Double, _ operatorChar: Character) -> Double {
switch operatorChar {
case "+":
return a + b
case "-":
return a - b
case "*":
return a * b
case "/":
return a / b
default:
fatalError("Invalid operator")
}
}
private func precedence(_ operatorChar: Character) -> Int? {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return nil
}
}
```
return evaluate(tokens) // call can throw but is not marked with 'try'while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token))! { // value of optional type 'Int?' must be unwrapped to a value of type 'Int'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
```
// XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
```
// XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
```
// XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
```
// XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
```
// XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
```
// XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
var output = ""
var error = ""
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
if let string = String(data: data, encoding: .utf8) {
output += string
}
task.waitUntilExit()
return (output, error)
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
var output = ""
var error = ""
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
if let string = String(data: data, encoding: .utf8) {
output += string
}
task.waitUntilExit()
return (output, error)
}
```
var error = "" // variable 'error' was never mutated; consider changing to 'let' constant // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
```
// XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}
```
// XCTAssertTrue failedfunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error ?? error
}
}
throw error!
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error ?? error
}
}
throw error!
}
```
error = error ?? error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
}
```
} // missing return in global function expected to return 'T'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
}
```
} // missing return in global function expected to return 'T'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let caughtError {
error = caughtError
}
}
throw error!
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let caughtError {
error = caughtError
}
}
throw error!
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let e {
error = e
}
}
throw error!
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let e {
error = e
}
}
throw error!
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let caughtError {
error = caughtError
}
}
throw error!
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let caughtError {
error = caughtError
}
}
throw error!
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let currentError {
error = currentError
}
}
throw error!
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let currentError {
error = currentError
}
}
throw error!
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let caughtError {
error = caughtError
}
}
throw error!
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let caughtError {
error = caughtError
}
}
throw error!
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let err {
error = err
}
}
throw error!
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let err {
error = err
}
}
throw error!
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let err {
error = err
}
}
throw error!
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let err {
error = err
}
}
throw error!
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] as? (() -> T)? else { return nil }
return factory()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] as? (() -> T)? else { return nil }
return factory()
}
}
```
return factory() // value of optional type '(() -> T)?' must be unwrapped to a value of type '() -> T'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Event, St)]] = [:]
init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 as! Ev == event })?.1 {
currentState = newState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Event, St)]] = [:]
init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 as! Ev == event })?.1 {
currentState = newState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}
```
init(state: St) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<St, Ev>'if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 as! Ev == event })?.1 { // forced cast of 'Ev' to same type has no effectprotocol 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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let transitions = transitionTable[currentState],
let next = transitions.first(where: { $0.event == event })?.to else {
print("No valid transition for event \(event) from state \(currentState)")
return
}
currentState = next
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let transitions = transitionTable[currentState],
let next = transitions.first(where: { $0.event == event })?.to else {
print("No valid transition for event \(event) from state \(currentState)")
return
}
currentState = next
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}
```
let next = transitions.first(where: { $0.event == event })?.to else { // value of tuple type '(Events, States)' has no member 'to'let next = transitions.first(where: { $0.event == event })?.to else { // value of tuple type '(Events, States)' has no member 'event'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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let nextStates = transitionTable[currentState]?.first(where: { $0.0 == event })?.1 {
currentState = nextStates
} else {
print("No valid transition for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let nextStates = transitionTable[currentState]?.first(where: { $0.0 == event })?.1 {
currentState = nextStates
} else {
print("No valid transition for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}
```
init(state: St) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<St, Ev>'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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let transitions = transitionTable[currentState],
let nextStates = transitions.first(where: { $0.event as? Events == event })?.to else {
print("No valid transition for event \(event) from state \(currentState)")
return
}
currentState = nextStates
print("Transitioned from \(currentState) due to event \(event)")
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let transitions = transitionTable[currentState],
let nextStates = transitions.first(where: { $0.event as? Events == event })?.to else {
print("No valid transition for event \(event) from state \(currentState)")
return
}
currentState = nextStates
print("Transitioned from \(currentState) due to event \(event)")
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}
```
let nextStates = transitions.first(where: { $0.event as? Events == event })?.to else { // value of tuple type '(Events, States)' has no member 'event'let nextStates = transitions.first(where: { $0.event as? Events == event })?.to else { // value of tuple type '(Events, States)' 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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let possibleTransitions = transitionTable[currentState] else {
print("No transitions defined for current state.")
return
}
if let newState = possibleTransitions.first(where: { $0.0 == event })?.1 {
currentState = newState
print("Transitioned from \(currentState) to \(newState)")
} else {
print("No valid transition found for event \(event) from state \(currentState).")
}
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let possibleTransitions = transitionTable[currentState] else {
print("No transitions defined for current state.")
return
}
if let newState = possibleTransitions.first(where: { $0.0 == event })?.1 {
currentState = newState
print("Transitioned from \(currentState) to \(newState)")
} else {
print("No valid transition found for event \(event) from state \(currentState).")
}
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}
```
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let nextStates = transitionTable[currentState]?.first(where: { $0.0 == event })?.1 {
currentState = nextStates
} else {
print("No valid transition for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let nextStates = transitionTable[currentState]?.first(where: { $0.0 == event })?.1 {
currentState = nextStates
} else {
print("No valid transition for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}
```
init(state: St) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<St, Ev>'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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitions: [St: [(Event, St)]] = [:]
init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let nextStates = transitions[currentState]?.first(where: { $0.0 as! Ev == event })?.1 {
currentState = nextStates
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
if transitions[from] == nil {
transitions[from] = []
}
transitions[from]?.append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitions: [St: [(Event, St)]] = [:]
init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let nextStates = transitions[currentState]?.first(where: { $0.0 as! Ev == event })?.1 {
currentState = nextStates
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
if transitions[from] == nil {
transitions[from] = []
}
transitions[from]?.append((event, to))
}
}
```
init(state: St) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<St, Ev>'if let nextStates = transitions[currentState]?.first(where: { $0.0 as! Ev == event })?.1 { // forced cast of 'Ev' to same type has no effectprotocol 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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let transitions = transitionTable[currentState],
let nextStates = transitions.first(where: { $0.event as? Events == event })?.to else {
return
}
currentState = nextStates
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event as! Event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let transitions = transitionTable[currentState],
let nextStates = transitions.first(where: { $0.event as? Events == event })?.to else {
return
}
currentState = nextStates
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event as! Event, to))
}
}
```
let nextStates = transitions.first(where: { $0.event as? Events == event })?.to else { // value of tuple type '(Events, States)' has no member 'to'let nextStates = transitions.first(where: { $0.event as? Events == event })?.to else { // value of tuple type '(Events, States)' has no member 'event'transitionTable[from, default: []].append((event as! Event, to)) // forced cast of 'StateMachine<States, Events>.Event' (aka 'Events') to same type has no effectprotocol 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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let transitions = transitionTable[currentState],
let next = transitions.first(where: { $0.event == event })?.to else {
print("No transition defined for event \(event) from state \(currentState)")
return
}
currentState = next
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
guard let transitions = transitionTable[currentState],
let next = transitions.first(where: { $0.event == event })?.to else {
print("No transition defined for event \(event) from state \(currentState)")
return
}
currentState = next
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}
```
let next = transitions.first(where: { $0.event == event })?.to else { // value of tuple type '(Events, States)' has no member 'to'let next = transitions.first(where: { $0.event == event })?.to else { // value of tuple type '(Events, States)' has no member 'event'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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
if let transitions = transitionTable[currentState], let next = transitions.first(where: { $0.0 as! Events == event })?.1 {
currentState = next
} else {
print("No valid transition for event \(event) from state \(currentState)")
}
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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<States: Hashable, Events: Hashable>: StateMachineProtocol {
private var currentState: States
private var transitionTable: [States: [(Event, States)]] = [:]
required init(state: States) {
self.currentState = state
}
var state: States {
return currentState
}
func trigger(event: Events) {
if let transitions = transitionTable[currentState], let next = transitions.first(where: { $0.0 as! Events == event })?.1 {
currentState = next
} else {
print("No valid transition for event \(event) from state \(currentState)")
}
}
func registerTransition(from: States, to: States, event: Events) {
transitionTable[from, default: []].append((event, to))
}
}
```
if let transitions = transitionTable[currentState], let next = transitions.first(where: { $0.0 as! Events == event })?.1 { // forced cast of 'Events' to same type has no effectindirect 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.map { $0.treeDepth }.max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map { $0.treeDepth }.max() ?? 0
}
}
}
```
return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map { $0.treeDepth }.max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map { $0.treeDepth }.max() ?? 0
}
}
}
```
return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map(\.treeDepth).max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map(\.treeDepth).max() ?? 0
}
}
}
```
return 1 + contents.map(\.treeDepth).max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map { $0.treeDepth }.max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map { $0.treeDepth }.max() ?? 0
}
}
}
```
return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map { $0.treeDepth }.max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map { $0.treeDepth }.max() ?? 0
}
}
}
```
return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map { $0.treeDepth }.max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map { $0.treeDepth }.max() ?? 0
}
}
}
```
return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map { $0.treeDepth }.max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map { $0.treeDepth }.max() ?? 0
}
}
}
```
return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map(\.treeDepth).max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map(\.treeDepth).max() ?? 0
}
}
}
```
return 1 + contents.map(\.treeDepth).max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map { $0.treeDepth }.max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map { $0.treeDepth }.max() ?? 0
}
}
}
```
return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let 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.map { $0.treeDepth }.max() ?? 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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.map { $0.treeDepth }.max() ?? 0
}
}
}
```
return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```
init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements = [ElementType]()
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements = [ElementType]()
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```
init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```
init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```
init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'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 storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private let queue = Queue<Key>()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = storage[key] {
// Move key to the end of the queue to mark it as recently used
queue.remove(key)
queue.enqueue(key)
return value
} else {
return nil
}
}
set(newValue) {
if let oldValue = storage[key] {
// Update existing value and move key to the end of the queue
storage[key] = newValue
queue.remove(key)
queue.enqueue(key)
} else {
// Add new key-value pair
storage[key] = newValue
queue.enqueue(key)
// Check if we need to evict the least recently used item
if storage.count > capacity {
if let oldestKey = queue.dequeue() {
storage[oldestKey] = nil
}
}
}
}
}
}
class Queue<T> {
private var elements: [T] = []
func enqueue(_ element: T) {
elements.append(element)
}
func dequeue() -> T? {
guard !elements.isEmpty else { return nil }
return elements.removeFirst()
}
func remove(_ element: T) {
if let index = elements.firstIndex(of: element) {
elements.remove(at: index)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage = [Key: Element]()
private let queue = Queue<Key>()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let value = storage[key] {
// Move key to the end of the queue to mark it as recently used
queue.remove(key)
queue.enqueue(key)
return value
} else {
return nil
}
}
set(newValue) {
if let oldValue = storage[key] {
// Update existing value and move key to the end of the queue
storage[key] = newValue
queue.remove(key)
queue.enqueue(key)
} else {
// Add new key-value pair
storage[key] = newValue
queue.enqueue(key)
// Check if we need to evict the least recently used item
if storage.count > capacity {
if let oldestKey = queue.dequeue() {
storage[oldestKey] = nil
}
}
}
}
}
}
// Simple implementation of a queue using an array
class Queue<T> {
private var elements: [T] = []
func enqueue(_ element: T) {
elements.append(element)
}
func dequeue() -> T? {
guard !elements.isEmpty else { return nil }
return elements.removeFirst()
}
func remove(_ element: T) {
if let index = elements.firstIndex(of: element) {
elements.remove(at: index)
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'if let oldValue = storage[key] { // value 'oldValue' was defined but never used; consider replacing with boolean testif let index = elements.firstIndex(of: element) { // referencing instance method 'firstIndex(of:)' on 'Collection' requires that 'T' conform to 'Equatable'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if order.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if order.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private var order = [Key]()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if order.count == capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage = [Key: Element]()
private var order = [Key]()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if order.count == capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private var order = [Key]()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage = [Key: Element]()
private var order = [Key]()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
}
return nil
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if order.count == capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
}
return nil
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if order.count == capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private let capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
} else if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage: [Key: Element] = [:]
private let capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
} else if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
} else {
storage[key] = newValue
}
order.append(key)
if storage.count > capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
} else {
storage[key] = newValue
}
order.append(key)
if storage.count > capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
} else if storage.count >= capacity {
if let keyToRemove = order.first {
storage.removeValue(forKey: keyToRemove)
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 storage = [Key: Element]()
private let capacity: Int
private var order = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
} else if storage.count >= capacity {
if let keyToRemove = order.first {
storage.removeValue(forKey: keyToRemove)
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'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, timestamp: Date)]
private let expirationTime: TimeInterval
init(expirationTime: TimeInterval) {
self.cache = [:]
self.expirationTime = expirationTime
}
subscript(key: Key) -> Value? {
get { return get(key: key) }
set(newValue) { put(value: newValue ?? Value(), key: key, expiration: expirationTime) }
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, Date(timeIntervalSinceNow: expiration))
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], Date() < cachedValue.timestamp else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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, timestamp: Date)]
private let expirationTime: TimeInterval
init(expirationTime: TimeInterval) {
self.cache = [:]
self.expirationTime = expirationTime
}
subscript(key: Key) -> Value? {
get { return get(key: key) }
set(newValue) { put(value: newValue ?? Value(), key: key, expiration: expirationTime) }
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, Date(timeIntervalSinceNow: expiration))
}
func get(key: Key) -> Value? {
guard let cachedValue = cache[key], Date() < cachedValue.timestamp else {
cache.removeValue(forKey: key)
return nil
}
return cachedValue.value
}
}
```
set(newValue) { put(value: newValue ?? Value(), key: key, expiration: expirationTime) } // type 'Value' has no member 'init'let cache = ExpirableCache<String, String>() // missing argument for parameter 'expirationTime' in callThread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
subscript(key: Key) -> Value? {
get {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
set(newValue) {
put(value: newValue ?? "", key: key, expiration: 3600) // Default expiration time of 1 hour
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
subscript(key: Key) -> Value? {
get {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
set(newValue) {
put(value: newValue ?? "", key: key, expiration: 3600) // Default expiration time of 1 hour
}
}
}
```
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol { // type 'ExpirableCache<Key, Value>' does not conform to protocol 'ExpirableCacheProtocol'put(value: newValue ?? "", key: key, expiration: 3600) // Default expiration time of 1 hour // cannot convert value of type 'String' to expected argument type '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 6XCTAssertNil(cache.get(key: "greeting")) // value of type 'ExpirableCache<String, String>' has no member 'get'Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6XCTAssertEqual(cache.get(key: "greeting"), "Hello, SwiftEval!") // value of type 'ExpirableCache<String, String>' has no member 'get'protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
func remove(key: CacheKey) {
cache.removeValue(forKey: key)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
func remove(key: CacheKey) {
cache.removeValue(forKey: key)
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
remove(key: key)
return nil
}
return value
}
func remove(key: Key) {
cache.removeValue(forKey: key)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
remove(key: key)
return nil
}
return value
}
func remove(key: Key) {
cache.removeValue(forKey: key)
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, timestamp: Date)]
init() {
self.cache = [:]
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
removeValue(forKey: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value: value, timestamp: expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, timestamp) = cache[key], Date() < timestamp else {
removeValue(forKey: key)
return nil
}
return value
}
func removeValue(forKey key: Key) {
cache.removeValue(forKey: key)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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, timestamp: Date)]
init() {
self.cache = [:]
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
removeValue(forKey: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value: value, timestamp: expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, timestamp) = cache[key], Date() < timestamp else {
removeValue(forKey: key)
return nil
}
return value
}
func removeValue(forKey key: Key) {
cache.removeValue(forKey: key)
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache = [CacheKey: (value: CacheValue, expirationDate: Date)]()
subscript(_ key: CacheKey) -> CacheValue? {
get { return self.get(key: key) }
set(newValue) {
if let newValue = newValue {
self.put(value: newValue, key: key, expiration: 3600) // Default expiration time is 1 hour
} else {
self.remove(key: key)
}
}
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
remove(key: key)
return nil
}
return value
}
func remove(key: CacheKey) {
cache.removeValue(forKey: key)
}
func removeAll() {
cache.removeAll()
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache = [CacheKey: (value: CacheValue, expirationDate: Date)]()
subscript(_ key: CacheKey) -> CacheValue? {
get { return self.get(key: key) }
set(newValue) {
if let newValue = newValue {
self.put(value: newValue, key: key, expiration: 3600) // Default expiration time is 1 hour
} else {
self.remove(key: key)
}
}
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
remove(key: key)
return nil
}
return value
}
func remove(key: CacheKey) {
cache.removeValue(forKey: key)
}
func removeAll() {
cache.removeAll()
}
}
```
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<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache = [CacheKey: (value: CacheValue, expirationDate: Date)]()
subscript(_ key: CacheKey) -> CacheValue? {
get { return self.get(key: key) }
set { self.put(value: newValue!, key: key, expiration: 3600) } // Default expiration time is 1 hour
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache = [CacheKey: (value: CacheValue, expirationDate: Date)]()
subscript(_ key: CacheKey) -> CacheValue? {
get { return self.get(key: key) }
set { self.put(value: newValue!, key: key, expiration: 3600) } // Default expiration time is 1 hour
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate 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<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 3600) // Default expiration time is 1 hour
} else {
remove(key: key)
}
}
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value: value, expirationDate: expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let cachedItem = cache[key], Date() < cachedItem.expirationDate else {
remove(key: key)
return nil
}
return cachedItem.value
}
func remove(key: CacheKey) {
cache.removeValue(forKey: key)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 3600) // Default expiration time is 1 hour
} else {
remove(key: key)
}
}
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value: value, expirationDate: expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let cachedItem = cache[key], Date() < cachedItem.expirationDate else {
remove(key: key)
return nil
}
return cachedItem.value
}
func remove(key: CacheKey) {
cache.removeValue(forKey: key)
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
subscript(_ key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
remove(key: key)
return nil
}
return value
}
func remove(key: Key) {
cache.removeValue(forKey: key)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
subscript(_ key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
remove(key: key)
return nil
}
return value
}
func remove(key: Key) {
cache.removeValue(forKey: key)
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache = [Key: (value: Value, expirationDate: Date)]()
private let queue = DispatchQueue(label: "com.example.ExpirableCacheQueue")
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
queue.async { [weak self] in
guard let self = self else { return }
self.cache[key] = (value, expirationDate)
self.cleanupExpiredItems()
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key], Date() < item.expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return item.value
}
}
func remove(key: Key) {
queue.async {
self.cache.removeValue(forKey: key)
}
}
private func cleanupExpiredItems() {
queue.async {
let now = Date()
for (key, item) in self.cache where now >= item.expirationDate {
self.cache.removeValue(forKey: key)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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, expirationDate: Date)]()
private let queue = DispatchQueue(label: "com.example.ExpirableCacheQueue")
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
queue.async { [weak self] in
guard let self = self else { return }
self.cache[key] = (value, expirationDate)
self.cleanupExpiredItems()
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let item = cache[key], Date() < item.expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return item.value
}
}
func remove(key: Key) {
queue.async {
self.cache.removeValue(forKey: key)
}
}
private func cleanupExpiredItems() {
queue.async {
let now = Date()
for (key, item) in self.cache where now >= item.expirationDate {
self.cache.removeValue(forKey: key)
}
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
result[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for (index, byte) in data.enumerated() {
result.append(UInt16(byte) ^ UInt16(keyData[index % keyData.count]))
}
return String(utf16CodeUnits: result, count: result.count)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
result[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for (index, byte) in data.enumerated() {
result.append(UInt16(byte) ^ UInt16(keyData[index % keyData.count]))
}
return String(utf16CodeUnits: result, count: result.count)
}
}
```
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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
result[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
result[index] = byte ^ keyData[index % keyData.count]
}
return String(bytes: result, encoding: .utf8)!
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
result[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
result[index] = byte ^ keyData[index % keyData.count]
}
return String(bytes: result, 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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
let keyChar = keyData[index % keyData.count]
encryptedData[index] = UInt8(char) ^ keyChar
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyData.count]
decryptedData[index] = byte ^ keyByte
}
if let decryptedString = String(bytes: decryptedData, encoding: .utf8) {
return decryptedString
} else {
return ""
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
let keyChar = keyData[index % keyData.count]
encryptedData[index] = UInt8(char) ^ keyChar
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyData.count]
decryptedData[index] = byte ^ keyByte
}
if let decryptedString = String(bytes: decryptedData, encoding: .utf8) {
return decryptedString
} else {
return ""
}
}
}
```
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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, character) in string.utf16.enumerated() {
let keyByte = keyData[index % keyData.count]
let charByte = UInt8(character)
encryptedData[index] = charByte ^ keyByte
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyData.count]
decryptedData[index] = byte ^ keyByte
}
if let decryptedString = String(bytes: decryptedData, encoding: .utf8) {
return decryptedString
} else {
return ""
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, character) in string.utf16.enumerated() {
let keyByte = keyData[index % keyData.count]
let charByte = UInt8(character)
encryptedData[index] = charByte ^ keyByte
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyData.count]
decryptedData[index] = byte ^ keyByte
}
if let decryptedString = String(bytes: decryptedData, encoding: .utf8) {
return decryptedString
} else {
return ""
}
}
}
```
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 keyData = key.data(using: .utf8)!
var result = [UInt8]()
for (index, char) in string.utf8.enumerated() {
let keyChar = keyData[index % keyData.count]
result.append(char ^ keyChar)
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt8]()
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyData.count]
result.append(byte ^ keyByte)
}
return String(bytes: result, encoding: .utf8) ?? ""
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var result = [UInt8]()
for (index, char) in string.utf8.enumerated() {
let keyChar = keyData[index % keyData.count]
result.append(char ^ keyChar)
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt8]()
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyData.count]
result.append(byte ^ keyByte)
}
return String(bytes: result, 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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (i, char) in string.utf16.enumerated() {
result[i] = UInt8(char) ^ keyData[i % keyData.count]
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for i in stride(from: 0, to: data.count, by: MemoryLayout<UInt16>.size) {
if i + MemoryLayout<UInt16>.size <= data.count {
let value = data.subdata(in: i..<i+MemoryLayout<UInt16>.size).withUnsafeBytes { $0.load(as: UInt16.self) }
result.append(value ^ UInt16(keyData[i / MemoryLayout<UInt16>.size % keyData.count]))
} else {
break
}
}
return String(utf16CodeUnits: result, count: result.count)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (i, char) in string.utf16.enumerated() {
result[i] = UInt8(char) ^ keyData[i % keyData.count]
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for i in stride(from: 0, to: data.count, by: MemoryLayout<UInt16>.size) {
if i + MemoryLayout<UInt16>.size <= data.count {
let value = data.subdata(in: i..<i+MemoryLayout<UInt16>.size).withUnsafeBytes { $0.load(as: UInt16.self) }
result.append(value ^ UInt16(keyData[i / MemoryLayout<UInt16>.size % keyData.count]))
} else {
break
}
}
return String(utf16CodeUnits: result, count: result.count)
}
}
```
// XCTAssertEqual failed: (Hello, SwiftEval!) is not equal to (ш䑬㈡ᕾՄѰ)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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, character) in string.utf16.enumerated() {
encryptedData[index] = UInt8(character) ^ keyData[index % keyData.count]
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
decryptedData[index] = byte ^ keyData[index % keyData.count]
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, character) in string.utf16.enumerated() {
encryptedData[index] = UInt8(character) ^ keyData[index % keyData.count]
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
decryptedData[index] = byte ^ keyData[index % keyData.count]
}
return String(bytes: 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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
let keyChar = keyData[index % keyData.count]
encryptedData[index] = UInt8(char) ^ keyChar
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyData.count]
decryptedData[index] = byte ^ keyByte
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
let keyChar = keyData[index % keyData.count]
encryptedData[index] = UInt8(char) ^ keyChar
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
let keyByte = keyData[index % keyData.count]
decryptedData[index] = byte ^ keyByte
}
return String(bytes: 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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
result[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for index in stride(from: 0, to: data.count, by: MemoryLayout<UInt16>.size) {
if index + MemoryLayout<UInt16>.size <= data.count {
let value = data.subdata(in: index..<index+MemoryLayout<UInt16>.size).withUnsafeBytes { $0.load(as: UInt16.self) }
result.append(value ^ UInt16(keyData[index % keyData.count]))
} else {
break
}
}
return String(utf16CodeUnits: result, count: result.count)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
result[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for index in stride(from: 0, to: data.count, by: MemoryLayout<UInt16>.size) {
if index + MemoryLayout<UInt16>.size <= data.count {
let value = data.subdata(in: index..<index+MemoryLayout<UInt16>.size).withUnsafeBytes { $0.load(as: UInt16.self) }
result.append(value ^ UInt16(keyData[index % keyData.count]))
} else {
break
}
}
return String(utf16CodeUnits: result, count: result.count)
}
}
```
// XCTAssertEqual failed: (Hello, SwiftEval!) is not equal to (шὬ䑯㈠౷ᕦՅѡ)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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (i, char) in string.utf16.enumerated() {
encryptedData[i] = UInt8(char) ^ keyData[i % keyData.count]
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (i, byte) in data.enumerated() {
decryptedData[i] = byte ^ keyData[i % keyData.count]
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (i, char) in string.utf16.enumerated() {
encryptedData[i] = UInt8(char) ^ keyData[i % keyData.count]
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (i, byte) in data.enumerated() {
decryptedData[i] = byte ^ keyData[i % keyData.count]
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}
```
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
currentRequests = 0
lastResetTime = currentTime
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
currentRequests = 0
lastResetTime = currentTime
}
}
}
```
lastResetTime = currentTime // cannot assign to value: 'lastResetTime' 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 let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastResetTime = lastResetTime else {
reset()
return true
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
reset()
return true
} else if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func reset() {
lastResetTime = Date()
currentRequests = 0
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastResetTime = lastResetTime else {
reset()
return true
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
reset()
return true
} else if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func reset() {
lastResetTime = Date()
currentRequests = 0
}
}
```
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 lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastResetTime = lastResetTime else {
reset()
return true
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
reset()
return true
} else if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func reset() {
lastResetTime = Date()
currentRequests = 0
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastResetTime = lastResetTime else {
reset()
return true
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
reset()
return true
} else if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func reset() {
lastResetTime = Date()
currentRequests = 0
}
}
```
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 lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = Date()
self.currentRequests = 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = Date()
self.currentRequests = 0
}
}
}
```
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 lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
if currentTime.timeIntervalSince(lastResetTime) >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
if currentTime.timeIntervalSince(lastResetTime) >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}
```
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 lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}
```
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 lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}
```
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 lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}
```
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 lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
let elapsedTime = currentTime.timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}
```
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 lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
if currentTime.timeIntervalSince(lastResetTime) >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let currentTime = Date()
if currentTime.timeIntervalSince(lastResetTime) >= timeInterval {
self.lastResetTime = currentTime
self.currentRequests = 0
}
}
}
```
Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.threadsafequeue", 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
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.threadsafequeue", 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 = 0
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
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
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 = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self._value = value
}
func increment() {
queue.async(flags: .barrier) {
self._value += 1
}
}
func currentValue() -> Int {
var result: Int!
queue.sync {
result = self._value
}
return result
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self._value = value
}
func increment() {
queue.async(flags: .barrier) {
self._value += 1
}
}
func currentValue() -> Int {
var result: Int!
queue.sync {
result = self._value
}
return result
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self._value = value
}
func increment() {
queue.async(flags: .barrier) { [weak self] in
guard let strongSelf = self else { return }
strongSelf._value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self._value
}
return result
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.threadsafe.counter", attributes: .concurrent)
required init(value: Int) {
self._value = value
}
func increment() {
queue.async(flags: .barrier) { [weak self] in
guard let strongSelf = self else { return }
strongSelf._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 = 0
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
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
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 = 0
private let queue = DispatchQueue(label: "com.example.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!
queue.sync {
result = self._value
}
return result
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.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!
queue.sync {
result = self._value
}
return result
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self._value = value
}
func increment() {
queue.async(flags: .barrier) { [weak self] in
guard let self = self else { return }
self._value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self._value
}
return result
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self._value = value
}
func increment() {
queue.async(flags: .barrier) { [weak self] in
guard let self = self else { return }
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 = 0
private let queue = DispatchQueue(label: "com.example.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!
queue.sync {
result = self._value
}
return result
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.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!
queue.sync {
result = self._value
}
return result
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", 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
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", 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 = 0
private let queue = DispatchQueue(label: "com.example.threadsafequeue", 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
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int = 0
private let queue = DispatchQueue(label: "com.example.threadsafequeue", 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 PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
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>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar 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 {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
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>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar 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 Value = Value
private var value: Value
private var observers: [UUID: (@escaping (Value) -> Void)] = [:]
init(value: Value) {
self.value = value
}
var value: Value {
get { return self.value }
set(newValue) {
if newValue != self.value {
self.value = newValue
notifyObservers()
}
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(self.value)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```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
private var value: Value
private var observers: [UUID: (@escaping (Value) -> Void)] = [:]
init(value: Value) {
self.value = value
}
var value: Value {
get { return self.value }
set(newValue) {
if newValue != self.value {
self.value = newValue
notifyObservers()
}
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(self.value)
}
}
}
```
private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'private var observers: [UUID: (@escaping (Value) -> Void)] = [:] // @escaping attribute may only be used in function parameter positioninit(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'if newValue != self.value { // binary operator '!=' cannot be applied to two 'Value' operandsprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
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>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar 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 {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
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>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar 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 {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
guard newValue != value else { return }
value = newValue
notifyObservers(with: newValue)
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(with newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
guard newValue != value else { return }
value = newValue
notifyObservers(with: newValue)
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(with newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
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>'guard newValue != value else { return } // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'set(wrappedValue) { wrappedValue = newValue } // cannot assign to value: 'wrappedValue' is a 'let' constantset(wrappedValue) { wrappedValue = newValue } // cannot find 'newValue' in scopeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(with: newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(with newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(with: newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(with newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
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>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar 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 {
private let _valueSubject = CurrentValueSubject<Value, Never>(initialValue: Value())
private var observers = [UUID: (Value) -> Void]()
private var nextObserverId = UUID()
var value: Value {
get { return _valueSubject.value }
set {
guard newValue != _valueSubject.value else { return }
_valueSubject.send(newValue)
notifyObservers(newValue)
}
}
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = nextObserverId
nextObserverId = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private let _valueSubject = CurrentValueSubject<Value, Never>(initialValue: Value())
private var observers = [UUID: (Value) -> Void]()
private var nextObserverId = UUID()
var value: Value {
get { return _valueSubject.value }
set {
guard newValue != _valueSubject.value else { return }
_valueSubject.send(newValue)
notifyObservers(newValue)
}
}
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = nextObserverId
nextObserverId = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
private let _valueSubject = CurrentValueSubject<Value, Never>(initialValue: Value()) // cannot find 'CurrentValueSubject' in scopeprivate let _valueSubject = CurrentValueSubject<Value, Never>(initialValue: Value()) // type 'Value' has no member 'init'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(with: newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(with newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(with: newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(with newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
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>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar 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 Value = Value
private var value: Value
private var observers: [UUID: (Value) -> Void] = [:]
private var nextObserverId: UUID = UUID()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = nextObserverId
nextObserverId = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```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
private var value: Value
private var observers: [UUID: (Value) -> Void] = [:]
private var nextObserverId: UUID = UUID()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = nextObserverId
nextObserverId = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```
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>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'set(wrappedValue) { wrappedValue = newValue } // cannot find 'newValue' in scopeset(wrappedValue) { wrappedValue = newValue } // cannot assign to value: 'wrappedValue' is a 'let' constantprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set { _value = newValue.clamping(to: range) }
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = newValue.clamping(to: range)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set { _value = newValue.clamping(to: range) }
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = newValue.clamping(to: range)
}
}
```
set { _value = newValue.clamping(to: range) } // value of type 'Wrapped' has no member 'clamping'self._value = newValue.clamping(to: range) // cannot find 'newValue' in scopeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
private let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return value }
set { value = newValue.clamping(to: range) }
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.value = wrappedValue.clamping(to: range)
self.range = range
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
private let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return value }
set { value = newValue.clamping(to: range) }
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.value = wrappedValue.clamping(to: range)
self.range = range
}
}
```
set { value = newValue.clamping(to: range) } // value of type 'Wrapped' has no member 'clamping'self.value = wrappedValue.clamping(to: range) // value of type 'Wrapped' has no member 'clamping'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(range.lowerBound, min(newValue, range.upperBound))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(range.lowerBound, min(newValue, range.upperBound))
}
}
```
self._value = max(range.lowerBound, min(newValue, range.upperBound)) // cannot find 'newValue' in scopeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue >= range.lowerBound && newValue <= range.upperBound {
_value = newValue
} else if newValue < range.lowerBound {
_value = range.lowerBound
} else {
_value = range.upperBound
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue >= range.lowerBound && newValue <= range.upperBound {
_value = newValue
} else if newValue < range.lowerBound {
_value = range.lowerBound
} else {
_value = range.upperBound
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}
```
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { return value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { return value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}
```
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set(newValue) {
if newValue >= range.lowerBound && newValue <= range.upperBound {
_value = newValue
} else if newValue < range.lowerBound {
_value = range.lowerBound
} else {
_value = range.upperBound
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set(newValue) {
if newValue >= range.lowerBound && newValue <= range.upperBound {
_value = newValue
} else if newValue < range.lowerBound {
_value = range.lowerBound
} else {
_value = range.upperBound
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}
```
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}
```
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set(newValue) {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set(newValue) {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}
```
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set(newValue) {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set(newValue) {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}
```
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}
```
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```
logger(.set, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```
logger(.set, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
willSet {
logger(.get, oldValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
willSet {
logger(.get, oldValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```
logger(.set, newValue) // cannot find 'newValue' in scopelogger(.get, oldValue) // cannot find 'oldValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```
logger(.set, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```
logger(.set, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```
logger(.set, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
private var value: Wrapped
private let logger: (Event, Wrapped) -> Void
var wrappedValue: Wrapped {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
private var value: Wrapped
private let logger: (Event, Wrapped) -> Void
var wrappedValue: Wrapped {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
log(.set, oldValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
private func log(_ event: Event, _ value: Wrapped) {
logger(event, value)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
log(.set, oldValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
private func log(_ event: Event, _ value: Wrapped) {
logger(event, value)
}
}
```
// 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
log(.set, oldValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
private func log(_ event: Event, _ value: Wrapped) {
logger(event, value)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
log(.set, oldValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
private func log(_ event: Event, _ value: Wrapped) {
logger(event, value)
}
}
```
// 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, wrappedValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, wrappedValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```
// 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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
```
init(provider: WeatherProvider) { // initializer requirement 'init(provider:)' can only be satisfied by a 'required' initializer in non-final class 'WeatherApplication'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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}
}
```
init(provider: WeatherProvider) { // initializer requirement 'init(provider:)' can only be satisfied by a 'required' initializer in non-final class 'WeatherApplication'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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
```
init(provider: WeatherProvider) { // initializer requirement 'init(provider:)' can only be satisfied by a 'required' initializer in non-final class 'WeatherApplication'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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
return nil
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}
}
```
init(provider: WeatherProvider) { // initializer requirement 'init(provider:)' can only be satisfied by a 'required' initializer in non-final class 'WeatherApplication'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
var currentSearchQuery: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchQuery.append(character)
case .keyboardDeleteBackwards:
currentSearchQuery.removeLast()
case .searchButtonPress:
return try? fetchForecastForCurrentQuery()
}
return nil
}
private func fetchForecastForCurrentQuery() throws -> ApplicationFeedback {
guard !currentSearchQuery.isEmpty else { return .failure(city: "No city entered") }
let forecast = try provider.forecast(for: currentSearchQuery)
return .success(city: currentSearchQuery, forecast: forecast)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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
var currentSearchQuery: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchQuery.append(character)
case .keyboardDeleteBackwards:
currentSearchQuery.removeLast()
case .searchButtonPress:
return try? fetchForecastForCurrentQuery()
}
return nil
}
private func fetchForecastForCurrentQuery() throws -> ApplicationFeedback {
guard !currentSearchQuery.isEmpty else { return .failure(city: "No city entered") }
let forecast = try provider.forecast(for: currentSearchQuery)
return .success(city: currentSearchQuery, forecast: forecast)
}
}
```
init(provider: WeatherProvider) { // initializer requirement 'init(provider:)' can only be satisfied by a 'required' initializer in non-final class 'WeatherApplication'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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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
var currentSearchTerm: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
```
init(provider: WeatherProvider) { // initializer requirement 'init(provider:)' can only be satisfied by a 'required' initializer in non-final class 'WeatherApplication'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
var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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
var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
```
// XCTAssertEqual failed: (nil) is not equal to (Optional(Solution.ApplicationFeedback.failure(city: "Wsaw")))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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() -> ApplicationFeedback? {
guard !currentSearchTerm.isEmpty else { return nil }
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() -> ApplicationFeedback? {
guard !currentSearchTerm.isEmpty else { return nil }
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}
```
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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
if !currentSearchTerm.isEmpty {
currentSearchTerm.removeLast()
}
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
```
// XCTAssertEqual failed: (nil) is not equal to (Optional(Solution.ApplicationFeedback.failure(city: "Wsaw")))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 currentSearchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchQuery.append(character)
case .keyboardDeleteBackwards:
currentSearchQuery.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchQuery.isEmpty else { return .failure(city: "") }
do {
let forecast = try provider.forecast(for: currentSearchQuery)
return .success(city: currentSearchQuery, forecast: forecast)
} catch {
return .failure(city: currentSearchQuery)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 currentSearchQuery: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchQuery.append(character)
case .keyboardDeleteBackwards:
currentSearchQuery.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchQuery.isEmpty else { return .failure(city: "") }
do {
let forecast = try provider.forecast(for: currentSearchQuery)
return .success(city: currentSearchQuery, forecast: forecast)
} catch {
return .failure(city: currentSearchQuery)
}
}
}
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = self.wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = self.wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = self.wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set {
cachedValue = newValue
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if shouldRecompute() {
cachedValue = wrappedValue()
}
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
private func shouldRecompute() -> Bool {
guard let cachedValue = cachedValue else {
return true
}
return !condition() || (cachedValue != wrappedValue())
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if shouldRecompute() {
cachedValue = wrappedValue()
}
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
private func shouldRecompute() -> Bool {
guard let cachedValue = cachedValue else {
return true
}
return !condition() || (cachedValue != wrappedValue())
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutablereturn !condition() || (cachedValue != wrappedValue()) // binary operator '!=' cannot be applied to two 'Value' operandsprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set(newValue) {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { lhs($0) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { lhs($0) }
}
```
return { lhs($0) } // cannot convert value of type 'B' to closure result type 'C'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { x in f(g(x)) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { x in f(g(x)) }
}
```
let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { lhs($0) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { lhs($0) }
}
```
return { lhs($0) } // cannot convert value of type 'B' to closure result type 'C'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { x in f(g(x)) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { x in f(g(x)) }
}
```let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { x in f(g(x)) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { x in f(g(x)) }
}
```
let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```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 g(f(x)) }
}
```
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { x in f(g(x)) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
func >>> <A, B, C>(f: @escaping (B) -> C, g: @escaping (A) -> B) -> (A) -> C {
return { x in f(g(x)) }
}
```
let composedFunction = doubleDescription >>> stringCount // cannot convert value of type '(Double) -> String' to expected argument type '(Int) -> String'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
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 { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in
g(f(x))
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in
g(f(x))
}
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while inputStream.hasBytesAvailable {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) {
digest.update(data: Data(bytes: buffer, count: bytesRead))
} else {
return nil
}
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while inputStream.hasBytesAvailable {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) {
digest.update(data: Data(bytes: buffer, count: bytesRead))
} else {
return nil
}
}
return digest.finalize()
}
```
if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) { // initializer for conditional binding must have Optional type, not 'Int'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
// Check if there is more data to read
if inputStream.hasBytesAvailable == false {
break
}
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
// Check if there is more data to read
if inputStream.hasBytesAvailable == false {
break
}
}
return digest.finalize()
}
```
while let chunk = inputStream.readData(upTo: bufferSize) { // value of type 'InputStream' has no member 'readData'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
// Check if there is more data to read
guard !inputStream.hasBytesAvailable else { continue }
// If no more data is available, finalize the digest
return digest.finalize()
}
// Return nil if no data was processed
return nil
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
// Check if there is more data to read
guard !inputStream.hasBytesAvailable else { continue }
// If no more data is available, finalize the digest
return digest.finalize()
}
// Return nil if no data was processed
return nil
}
```
while let chunk = inputStream.readData(upTo: bufferSize) { // value of type 'InputStream' has no member 'readData'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
guard let bytesRead = inputStream.read(buffer, maxLength: bufferSize) else {
return nil
}
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while inputStream.hasBytesAvailable {
guard let bytesRead = inputStream.read(buffer, maxLength: bufferSize) else {
return nil
}
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
return digest.finalize()
}
```
guard let bytesRead = inputStream.read(buffer, maxLength: bufferSize) else { // initializer for conditional binding must have Optional type, not 'Int'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while inputStream.hasBytesAvailable {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) {
digest.update(data: Data(bytes: buffer, count: bytesRead))
} else {
return nil
}
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while inputStream.hasBytesAvailable {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) {
digest.update(data: Data(bytes: buffer, count: bytesRead))
} else {
return nil
}
}
return digest.finalize()
}
```
if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) { // initializer for conditional binding must have Optional type, not 'Int'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
// Check if there is more data to read
if inputStream.hasBytesAvailable == false {
break
}
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
// Check if there is more data to read
if inputStream.hasBytesAvailable == false {
break
}
}
return digest.finalize()
}
```
while let chunk = inputStream.readData(upTo: bufferSize) { // value of type 'InputStream' has no member 'readData'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
}
return digest.finalize()
}
```
while let chunk = inputStream.readData(upTo: bufferSize) { // value of type 'InputStream' has no member 'readData'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
if inputStream.status == .atEnd {
break
}
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize) {
digest.update(data: chunk)
if inputStream.status == .atEnd {
break
}
}
return digest.finalize()
}
```
while let chunk = inputStream.readData(upTo: bufferSize) { // value of type 'InputStream' has no member 'readData'if inputStream.status == .atEnd { // value of type 'InputStream' has no member 'status'if inputStream.status == .atEnd { // cannot infer contextual base in reference to member 'atEnd'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while true {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead == 0 {
break // End of stream reached
} else if bytesRead < 0 {
return nil // Error occurred during reading
}
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while true {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead == 0 {
break // End of stream reached
} else if bytesRead < 0 {
return nil // Error occurred during reading
}
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
return digest.finalize()
}
```
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while true {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead == -1 {
return nil // Error occurred during reading
} else if bytesRead == 0 {
break // End of stream reached
}
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
return digest.finalize()
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
while true {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead == -1 {
return nil // Error occurred during reading
} else if bytesRead == 0 {
break // End of stream reached
}
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
return digest.finalize()
}
```
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes[..<index], encoding: .utf8)!
} else {
self = String(bytes, encoding: .utf8)!
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes[..<index], encoding: .utf8)!
} else {
self = String(bytes, encoding: .utf8)!
}
}
}
```
let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializerself = String(bytes[..<index], encoding: .utf8)! // no exact matches in call to initializerself = String(bytes, encoding: .utf8)! // 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).map { $0 }
if let index = bytes.firstIndex(of: 0) {
self.init(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self.init(bytes: bytes, encoding: .utf8)!
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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).map { $0 }
if let index = bytes.firstIndex(of: 0) {
self.init(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self.init(bytes: bytes, encoding: .utf8)!
}
}
}
```
let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data([tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7,
tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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([tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7,
tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}
```
let data = Data([tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}
```
let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}
```
let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(of: 0) {
self.init(bytes: bytes[..<index], encoding: .utf8)!
} else {
self.init(bytes: bytes, encoding: .utf8)!
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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).map { $0 }
if let index = bytes.firstIndex(of: 0) {
self.init(bytes: bytes[..<index], encoding: .utf8)!
} else {
self.init(bytes: bytes, encoding: .utf8)!
}
}
}
```
let bytes = Array(tuple16).map { $0 } // 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).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self.init(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self.init(bytes: bytes, encoding: .utf8)!
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self.init(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self.init(bytes: bytes, encoding: .utf8)!
}
}
}
```
let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}
```
let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let firstZeroIndex = bytes.firstIndex(of: 0) {
self = String(bytes[..<firstZeroIndex], encoding: .utf8)!
} else {
self = String(bytes, encoding: .utf8)!
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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).map { $0 }
if let firstZeroIndex = bytes.firstIndex(of: 0) {
self = String(bytes[..<firstZeroIndex], encoding: .utf8)!
} else {
self = String(bytes, encoding: .utf8)!
}
}
}
```
let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializerself = String(bytes[..<firstZeroIndex], encoding: .utf8)! // no exact matches in call to initializerself = String(bytes, encoding: .utf8)! // 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).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self.init(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self.init(bytes: bytes, encoding: .utf8)!
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self.init(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self.init(bytes: bytes, encoding: .utf8)!
}
}
}
```
let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializerimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.baseAddress != nil && rhs.baseAddress != nil else {
return false
}
let lhsSize = CVPixelBufferGetWidth(lhs) * CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) * CVPixelBufferGetHeight(rhs)
if lhsSize != rhsSize || lhs.formatDescription?.pixelFormatType != rhs.formatDescription?.pixelFormatType {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(rhs, 0)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let totalBytes = lhsSize * Int(CVPixelBufferGetBitsPerPixelOfPlane(lhs, 0) / 8)
let lhsData = UnsafeRawPointer(lhs.baseAddress!)
let rhsData = UnsafeRawPointer(rhs.baseAddress!)
return lhsData.withMemoryRebound(to: UInt8.self, capacity: totalBytes) { lhsPtr in
rhsData.withMemoryRebound(to: UInt8.self, capacity: totalBytes) { rhsPtr in
lhsPtr.elementsEqual(rhsPtr, count: totalBytes)
}
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.baseAddress != nil && rhs.baseAddress != nil else {
return false
}
let lhsSize = CVPixelBufferGetWidth(lhs) * CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) * CVPixelBufferGetHeight(rhs)
if lhsSize != rhsSize || lhs.formatDescription?.pixelFormatType != rhs.formatDescription?.pixelFormatType {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(rhs, 0)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let totalBytes = lhsSize * Int(CVPixelBufferGetBitsPerPixelOfPlane(lhs, 0) / 8)
let lhsData = UnsafeRawPointer(lhs.baseAddress!)
let rhsData = UnsafeRawPointer(rhs.baseAddress!)
return lhsData.withMemoryRebound(to: UInt8.self, capacity: totalBytes) { lhsPtr in
rhsData.withMemoryRebound(to: UInt8.self, capacity: totalBytes) { rhsPtr in
lhsPtr.elementsEqual(rhsPtr, count: totalBytes)
}
}
}
```
guard lhs.baseAddress != nil && rhs.baseAddress != nil else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'guard lhs.baseAddress != nil && rhs.baseAddress != nil else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'if lhsSize != rhsSize || lhs.formatDescription?.pixelFormatType != rhs.formatDescription?.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'if lhsSize != rhsSize || lhs.formatDescription?.pixelFormatType != rhs.formatDescription?.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'let totalBytes = lhsSize * Int(CVPixelBufferGetBitsPerPixelOfPlane(lhs, 0) / 8) // cannot find 'CVPixelBufferGetBitsPerPixelOfPlane' in scopelet lhsData = UnsafeRawPointer(lhs.baseAddress!) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'let rhsData = UnsafeRawPointer(rhs.baseAddress!) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.baseAddress != nil && rhs.baseAddress != nil else {
return false
}
let lhsSize = CVPixelBufferGetWidth(lhs) * CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) * CVPixelBufferGetHeight(rhs)
if lhsSize != rhsSize || lhs.formatDescription?.pixelFormatType != rhs.formatDescription?.pixelFormatType {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(rhs, 0)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let totalBytes = lhsSize * Int(CVPixelBufferGetBitsPerPixelOfPlane(lhs, 0)) / 8
let lhsData = Data(bytesNoCopy: lhs.baseAddress!, count: totalBytes, deallocator: .none)
let rhsData = Data(bytesNoCopy: rhs.baseAddress!, count: totalBytes, deallocator: .none)
return lhsData == rhsData
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.baseAddress != nil && rhs.baseAddress != nil else {
return false
}
let lhsSize = CVPixelBufferGetWidth(lhs) * CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) * CVPixelBufferGetHeight(rhs)
if lhsSize != rhsSize || lhs.formatDescription?.pixelFormatType != rhs.formatDescription?.pixelFormatType {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(rhs, 0)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let totalBytes = lhsSize * Int(CVPixelBufferGetBitsPerPixelOfPlane(lhs, 0)) / 8
let lhsData = Data(bytesNoCopy: lhs.baseAddress!, count: totalBytes, deallocator: .none)
let rhsData = Data(bytesNoCopy: rhs.baseAddress!, count: totalBytes, deallocator: .none)
return lhsData == rhsData
}
```
guard lhs.baseAddress != nil && rhs.baseAddress != nil else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'guard lhs.baseAddress != nil && rhs.baseAddress != nil else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'if lhsSize != rhsSize || lhs.formatDescription?.pixelFormatType != rhs.formatDescription?.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'if lhsSize != rhsSize || lhs.formatDescription?.pixelFormatType != rhs.formatDescription?.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'let totalBytes = lhsSize * Int(CVPixelBufferGetBitsPerPixelOfPlane(lhs, 0)) / 8 // cannot find 'CVPixelBufferGetBitsPerPixelOfPlane' in scopelet lhsData = Data(bytesNoCopy: lhs.baseAddress!, count: totalBytes, deallocator: .none) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'let rhsData = Data(bytesNoCopy: rhs.baseAddress!, count: totalBytes, deallocator: .none) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs), rhsSize = CVPixelBufferGetWidth(rhs)
guard lhsSize == rhsSize && CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs), rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
var lhsBaseAddress: UnsafeMutableRawPointer?
var rhsBaseAddress: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(lhs, .readOnly) }
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(rhs, .readOnly) }
lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
guard let lhsPtr = lhsBaseAddress, let rhsPtr = rhsBaseAddress else {
return false
}
let bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let totalBytes = CVPixelBufferGetDataSize(lhs)
return lhsPtr == rhsPtr || memcmp(lhsPtr, rhsPtr, totalBytes) == 0
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs), rhsSize = CVPixelBufferGetWidth(rhs)
guard lhsSize == rhsSize && CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs), rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
var lhsBaseAddress: UnsafeMutableRawPointer?
var rhsBaseAddress: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(lhs, .readOnly) }
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(rhs, .readOnly) }
lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
guard let lhsPtr = lhsBaseAddress, let rhsPtr = rhsBaseAddress else {
return false
}
let bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let totalBytes = CVPixelBufferGetDataSize(lhs)
return lhsPtr == rhsPtr || memcmp(lhsPtr, rhsPtr, totalBytes) == 0
}
```
let bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0) // initialization of immutable value 'bytesPerRow' was never used; consider replacing with assignment to '_' or removing itimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}
```
return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return 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?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs) == CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) == CVPixelBufferGetHeight(rhs)
guard lhsSize == rhsSize else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let width = CVPixelBufferGetWidth(lhs)
let height = CVPixelBufferGetHeight(lhs)
let bufferSize = width * height
var lhsData = [UInt8](repeating: 0, count: bufferSize)
var rhsData = [UInt8](repeating: 0, count: bufferSize)
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
memcpy(&lhsData, CVPixelBufferGetBaseAddress(lhs), bufferSize)
memcpy(&rhsData, CVPixelBufferGetBaseAddress(rhs), bufferSize)
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
return lhsData == rhsData
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs) == CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) == CVPixelBufferGetHeight(rhs)
guard lhsSize == rhsSize else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let width = CVPixelBufferGetWidth(lhs)
let height = CVPixelBufferGetHeight(lhs)
let bufferSize = width * height
var lhsData = [UInt8](repeating: 0, count: bufferSize)
var rhsData = [UInt8](repeating: 0, count: bufferSize)
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
memcpy(&lhsData, CVPixelBufferGetBaseAddress(lhs), bufferSize)
memcpy(&rhsData, CVPixelBufferGetBaseAddress(rhs), bufferSize)
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
return lhsData == rhsData
}
```
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}
```
return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return 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?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType else {
return false
}
let width = Int(lhs.width)
let height = Int(lhs.height)
let bufferSize = width * height
var lhsData = [UInt8](repeating: 0, count: bufferSize)
var rhsData = [UInt8](repeating: 0, count: bufferSize)
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
memcpy(&lhsData, CVPixelBufferGetBaseAddress(lhs), bufferSize)
memcpy(&rhsData, CVPixelBufferGetBaseAddress(rhs), bufferSize)
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
return lhsData == rhsData
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType else {
return false
}
let width = Int(lhs.width)
let height = Int(lhs.height)
let bufferSize = width * height
var lhsData = [UInt8](repeating: 0, count: bufferSize)
var rhsData = [UInt8](repeating: 0, count: bufferSize)
CVPixelBufferLockBaseAddress(lhs, .readOnly)
CVPixelBufferLockBaseAddress(rhs, .readOnly)
memcpy(&lhsData, CVPixelBufferGetBaseAddress(lhs), bufferSize)
memcpy(&rhsData, CVPixelBufferGetBaseAddress(rhs), bufferSize)
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
return lhsData == rhsData
}
```
guard lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard 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?.pixelFormatType == rhs.formatDescription?.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'let width = Int(lhs.width) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'let height = Int(lhs.height) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), min(CVPixelBufferGetDataSize(lhs), CVPixelBufferGetDataSize(rhs))) == 0
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), min(CVPixelBufferGetDataSize(lhs), CVPixelBufferGetDataSize(rhs))) == 0
}
```
return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return 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?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs), rhsSize = CVPixelBufferGetWidth(rhs)
guard lhsSize == rhsSize && CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs), rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
var lhsData: UnsafeMutableRawPointer?
var rhsData: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(lhs, .readOnly) }
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(rhs, .readOnly) }
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
guard let lhsPtr = lhsData, let rhsPtr = rhsData else {
return false
}
let bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let totalBytes = bytesPerRow * CVPixelBufferGetHeight(lhs)
return lhsPtr == rhsPtr || memcmp(lhsPtr, rhsPtr, totalBytes) == 0
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs), rhsSize = CVPixelBufferGetWidth(rhs)
guard lhsSize == rhsSize && CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs), rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
var lhsData: UnsafeMutableRawPointer?
var rhsData: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(lhs, .readOnly) }
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(rhs, .readOnly) }
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
guard let lhsPtr = lhsData, let rhsPtr = rhsData else {
return false
}
let bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let totalBytes = bytesPerRow * CVPixelBufferGetHeight(lhs)
return lhsPtr == rhsPtr || memcmp(lhsPtr, rhsPtr, totalBytes) == 0
}
```
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType else {
return false
}
let lhsData = CVPixelBufferLockBaseAddress(lhs, .readOnly)
let rhsData = CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
guard let lhsPtr = lhsData as? UnsafePointer<UInt8>,
let rhsPtr = rhsData as? UnsafePointer<UInt8> else {
return false
}
let length = lhs.rowBytes * lhs.height
return lhsPtr.withMemoryRebound(to: UInt8.self, capacity: length) { lhsBuffer in
rhsPtr.withMemoryRebound(to: UInt8.self, capacity: length) { rhsBuffer in
return lhsBuffer.elementsEqual(rhsBuffer)
}
} ?? false
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType else {
return false
}
let lhsData = CVPixelBufferLockBaseAddress(lhs, .readOnly)
let rhsData = CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer {
CVPixelBufferUnlockBaseAddress(lhs, .readOnly)
CVPixelBufferUnlockBaseAddress(rhs, .readOnly)
}
guard let lhsPtr = lhsData as? UnsafePointer<UInt8>,
let rhsPtr = rhsData as? UnsafePointer<UInt8> else {
return false
}
let length = lhs.rowBytes * lhs.height
return lhsPtr.withMemoryRebound(to: UInt8.self, capacity: length) { lhsBuffer in
rhsPtr.withMemoryRebound(to: UInt8.self, capacity: length) { rhsBuffer in
return lhsBuffer.elementsEqual(rhsBuffer)
}
} ?? false
}
```
guard lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard 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?.pixelFormatType == rhs.formatDescription?.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'guard let lhsPtr = lhsData as? UnsafePointer<UInt8>, // cast from 'CVReturn' (aka 'Int32') to unrelated type 'UnsafePointer<UInt8>' always failslet rhsPtr = rhsData as? UnsafePointer<UInt8> else { // cast from 'CVReturn' (aka 'Int32') to unrelated type 'UnsafePointer<UInt8>' always failslet length = lhs.rowBytes * lhs.height // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'rowBytes'let length = lhs.rowBytes * lhs.height // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhsBuffer.elementsEqual(rhsBuffer) // value of type 'UnsafePointer<UInt8>' has no member 'elementsEqual'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 { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}
```
pointer.initialize(to: PublicItem(value: item.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 { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}
```
let publicValue = pointer.pointee.value // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}
```
let publicValue = pointer.pointee.value // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
var publicItem = PublicItem(value: 0)
memcpy(&publicItem.value, &item.value, MemoryLayout<Int>.size)
return publicItem
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
var publicItem = PublicItem(value: 0)
memcpy(&publicItem.value, &item.value, MemoryLayout<Int>.size)
return publicItem
}
}
```
memcpy(&publicItem.value, &item.value, MemoryLayout<Int>.size) // 'value' is inaccessible due to 'private' protection levelmemcpy(&publicItem.value, &item.value, MemoryLayout<Int>.size) // cannot pass immutable value as inout argument: 'value' is a 'let' constantstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}
```
pointer.initialize(to: PublicItem(value: item.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 { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}
```
pointer.initialize(to: PublicItem(value: item.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 { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
defer { pointer.deallocate() }
pointer.initialize(to: PublicItem(value: item.value))
return pointer.pointee
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
defer { pointer.deallocate() }
pointer.initialize(to: PublicItem(value: item.value))
return pointer.pointee
}
}
```
pointer.initialize(to: PublicItem(value: item.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 { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}
```
let publicValue = pointer.pointee.value // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}
```
pointer.initialize(to: PublicItem(value: item.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 { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```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 { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}
```
let publicValue = pointer.pointee.value // 'value' is inaccessible due to 'private' protection levelenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<max(components[0].count, components[1].count) {
let left = components[0][i] ?? 0
let right = components[1][i] ?? 0
if left < right {
return .orderedAscending
} else if left > right {
return .orderedDescending
}
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<max(components[0].count, components[1].count) {
let left = components[0][i] ?? 0
let right = components[1][i] ?? 0
if left < right {
return .orderedAscending
} else if left > right {
return .orderedDescending
}
}
return .orderedSame
}
```
let left = components[0][i] ?? 0 // left side of nil coalescing operator '??' has non-optional type 'Int', so the right side is never usedlet right = components[1][i] ?? 0 // left side of nil coalescing operator '??' has non-optional type 'Int', so the right side is never used // Fatal error: Index out of rangeenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = ["0", "0", "0", "0"]
func parseVersion(_ version: String) -> [String] {
var parts = version.split(separator: ".", omittingEmptySubsequences: true).map { String($0) }
if parts.count < 4 {
parts += Array(repeating: components[parts.count], count: 4 - parts.count)
}
return parts
}
let leftParts = parseVersion(lhs)
let rightParts = parseVersion(rhs)
for i in 0..<4 {
if leftParts[i] < rightParts[i] {
return .orderedAscending
} else if leftParts[i] > rightParts[i] {
return .orderedDescending
}
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = ["0", "0", "0", "0"]
func parseVersion(_ version: String) -> [String] {
var parts = version.split(separator: ".", omittingEmptySubsequences: true).map { String($0) }
if parts.count < 4 {
parts += Array(repeating: components[parts.count], count: 4 - parts.count)
}
return parts
}
let leftParts = parseVersion(lhs)
let rightParts = parseVersion(rhs)
for i in 0..<4 {
if leftParts[i] < rightParts[i] {
return .orderedAscending
} else if leftParts[i] > rightParts[i] {
return .orderedDescending
}
}
return .orderedSame
}
```
// XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<max(components[0].count, components[1].count) {
let left = components[0][i] ?? 0
let right = components[1][i] ?? 0
if left < right {
return .orderedAscending
} else if left > right {
return .orderedDescending
}
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<max(components[0].count, components[1].count) {
let left = components[0][i] ?? 0
let right = components[1][i] ?? 0
if left < right {
return .orderedAscending
} else if left > right {
return .orderedDescending
}
}
return .orderedSame
}
```
let left = components[0][i] ?? 0 // left side of nil coalescing operator '??' has non-optional type 'Int', so the right side is never usedlet right = components[1][i] ?? 0 // left side of nil coalescing operator '??' has non-optional type 'Int', so the right side is never used // Fatal error: Index out of rangeenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<max(components[0].count, components[1].count) {
let left = i < components[0].count ? components[0][i] : 0
let right = i < components[1].count ? components[1][i] : 0
if left != right {
return left < right ? .orderedAscending : .orderedDescending
}
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<max(components[0].count, components[1].count) {
let left = i < components[0].count ? components[0][i] : 0
let right = i < components[1].count ? components[1][i] : 0
if left != right {
return left < right ? .orderedAscending : .orderedDescending
}
}
return .orderedSame
}
```
// XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = ["0", "0", "0", "0"]
func parseVersion(_ version: String) -> [String] {
var parts = version.split(separator: ".", omittingEmptySubsequences: true).map { String($0) }
while parts.count < 4 {
parts.append("0")
}
return parts
}
let leftParts = parseVersion(lhs)
let rightParts = parseVersion(rhs)
for i in 0..<4 {
if leftParts[i] != rightParts[i] {
if let leftInt = Int(leftParts[i]), let rightInt = Int(rightParts[i]) {
if leftInt < rightInt {
return .orderedAscending
} else {
return .orderedDescending
}
} else {
// Handle alpha/beta versions
let leftAlpha = leftParts[i].hasPrefix("a") || leftParts[i].hasPrefix("b")
let rightAlpha = rightParts[i].hasPrefix("a") || rightParts[i].hasPrefix("b")
if leftAlpha && !rightAlpha {
return .orderedAscending
} else if !leftAlpha && rightAlpha {
return .orderedDescending
} else {
let leftAlphaIndex = leftParts[i].firstIndex(of: "a") ?? 1
let rightAlphaIndex = rightParts[i].firstIndex(of: "a") ?? 1
let leftBetaIndex = leftParts[i].firstIndex(of: "b") ?? 2
let rightBetaIndex = rightParts[i].firstIndex(of: "b") ?? 2
let leftAlphaValue = Int(String(leftParts[i][leftAlphaIndex...])) ?? 0
let rightAlphaValue = Int(String(rightParts[i][rightAlphaIndex...])) ?? 0
let leftBetaValue = Int(String(leftParts[i][leftBetaIndex...])) ?? 0
let rightBetaValue = Int(String(rightParts[i][rightBetaIndex...])) ?? 0
if leftAlphaValue < rightAlphaValue {
return .orderedAscending
} else if leftAlphaValue > rightAlphaValue {
return .orderedDescending
} else if leftBetaValue < rightBetaValue {
return .orderedAscending
} else if leftBetaValue > rightBetaValue {
return .orderedDescending
}
}
}
}
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = ["0", "0", "0", "0"]
func parseVersion(_ version: String) -> [String] {
var parts = version.split(separator: ".", omittingEmptySubsequences: true).map { String($0) }
while parts.count < 4 {
parts.append("0")
}
return parts
}
let leftParts = parseVersion(lhs)
let rightParts = parseVersion(rhs)
for i in 0..<4 {
if leftParts[i] != rightParts[i] {
if let leftInt = Int(leftParts[i]), let rightInt = Int(rightParts[i]) {
if leftInt < rightInt {
return .orderedAscending
} else {
return .orderedDescending
}
} else {
// Handle alpha/beta versions
let leftAlpha = leftParts[i].hasPrefix("a") || leftParts[i].hasPrefix("b")
let rightAlpha = rightParts[i].hasPrefix("a") || rightParts[i].hasPrefix("b")
if leftAlpha && !rightAlpha {
return .orderedAscending
} else if !leftAlpha && rightAlpha {
return .orderedDescending
} else {
let leftAlphaIndex = leftParts[i].firstIndex(of: "a") ?? 1
let rightAlphaIndex = rightParts[i].firstIndex(of: "a") ?? 1
let leftBetaIndex = leftParts[i].firstIndex(of: "b") ?? 2
let rightBetaIndex = rightParts[i].firstIndex(of: "b") ?? 2
let leftAlphaValue = Int(String(leftParts[i][leftAlphaIndex...])) ?? 0
let rightAlphaValue = Int(String(rightParts[i][rightAlphaIndex...])) ?? 0
let leftBetaValue = Int(String(leftParts[i][leftBetaIndex...])) ?? 0
let rightBetaValue = Int(String(rightParts[i][rightBetaIndex...])) ?? 0
if leftAlphaValue < rightAlphaValue {
return .orderedAscending
} else if leftAlphaValue > rightAlphaValue {
return .orderedDescending
} else if leftBetaValue < rightBetaValue {
return .orderedAscending
} else if leftBetaValue > rightBetaValue {
return .orderedDescending
}
}
}
}
}
return .orderedSame
}
```
let leftAlphaIndex = leftParts[i].firstIndex(of: "a") ?? 1 // no exact matches in call to subscriptlet rightAlphaIndex = rightParts[i].firstIndex(of: "a") ?? 1 // no exact matches in call to subscriptlet leftBetaIndex = leftParts[i].firstIndex(of: "b") ?? 2 // no exact matches in call to subscriptlet rightBetaIndex = rightParts[i].firstIndex(of: "b") ?? 2 // no exact matches in call to subscriptlet leftAlphaValue = Int(String(leftParts[i][leftAlphaIndex...])) ?? 0 // type '()' cannot conform to 'RangeExpression'let rightAlphaValue = Int(String(rightParts[i][rightAlphaIndex...])) ?? 0 // type '()' cannot conform to 'RangeExpression'let leftBetaValue = Int(String(leftParts[i][leftBetaIndex...])) ?? 0 // type '()' cannot conform to 'RangeExpression'let rightBetaValue = Int(String(rightParts[i][rightBetaIndex...])) ?? 0 // type '()' cannot conform to 'RangeExpression'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = ["0", "0", "0"] // Default to 0 for missing components
func parseVersionComponent(_ component: String) -> Int? {
if let intVal = Int(component) {
return intVal
} else if component.hasPrefix("alpha") || component.hasPrefix("beta") {
return Int(component.suffix(from: component.firstIndex(of: Character("0")) ?? component.startIndex))
}
return nil
}
let leftComponents = lhs.split(separator: ".").map { String($0) }.prefix(3)
let rightComponents = rhs.split(separator: ".").map { String($0) }.prefix(3)
for i in 0..<3 {
guard let leftNum = parseVersionComponent(leftComponents[i]), let rightNum = parseVersionComponent(rightComponents[i]) else {
continue
}
if leftNum < rightNum {
return .orderedAscending
} else if leftNum > rightNum {
return .orderedDescending
}
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = ["0", "0", "0"] // Default to 0 for missing components
func parseVersionComponent(_ component: String) -> Int? {
if let intVal = Int(component) {
return intVal
} else if component.hasPrefix("alpha") || component.hasPrefix("beta") {
return Int(component.suffix(from: component.firstIndex(of: Character("0")) ?? component.startIndex))
}
return nil
}
let leftComponents = lhs.split(separator: ".").map { String($0) }.prefix(3)
let rightComponents = rhs.split(separator: ".").map { String($0) }.prefix(3)
for i in 0..<3 {
guard let leftNum = parseVersionComponent(leftComponents[i]), let rightNum = parseVersionComponent(rightComponents[i]) else {
continue
}
if leftNum < rightNum {
return .orderedAscending
} else if leftNum > rightNum {
return .orderedDescending
}
}
return .orderedSame
}
```
let components = ["0", "0", "0"] // Default to 0 for missing components // initialization of immutable value 'components' was never used; consider replacing with assignment to '_' or removing it // Fatal error: Index out of boundsenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
// Handle alpha and beta versions
let alphaPattern = #"(\d+)\.(.*?)-alpha(\d+)"#
let betaPattern = #"(\d+)\.(.*?)-beta(\d+)"#
if let lhsMatch = lhs.range(of: alphaPattern, options: .regularExpression),
let rhsMatch = rhs.range(of: betaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsMatch].dropFirst(6)) ?? 0
let rhsVersion = Int(rhs[rhsMatch].dropFirst(5)) ?? 0
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
if let lhsMatch = lhs.range(of: betaPattern, options: .regularExpression),
let rhsMatch = rhs.range(of: alphaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsMatch].dropFirst(5)) ?? 0
let rhsVersion = Int(rhs[rhsMatch].dropFirst(6)) ?? 0
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
if let lhsAlphaMatch = lhs.range(of: alphaPattern, options: .regularExpression),
let rhsAlphaMatch = rhs.range(of: alphaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsAlphaMatch].dropFirst(6)) ?? 0
let rhsVersion = Int(rhs[rhsAlphaMatch].dropFirst(6)) ?? 0
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
if let lhsBetaMatch = lhs.range(of: betaPattern, options: .regularExpression),
let rhsBetaMatch = rhs.range(of: betaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsBetaMatch].dropFirst(5)) ?? 0
let rhsVersion = Int(rhs[rhsBetaMatch].dropFirst(5)) ?? 0
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
// Handle alpha and beta versions
let alphaPattern = #"(\d+)\.(.*?)-alpha(\d+)"#
let betaPattern = #"(\d+)\.(.*?)-beta(\d+)"#
if let lhsMatch = lhs.range(of: alphaPattern, options: .regularExpression),
let rhsMatch = rhs.range(of: betaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsMatch].dropFirst(6)) ?? 0
let rhsVersion = Int(rhs[rhsMatch].dropFirst(5)) ?? 0
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
if let lhsMatch = lhs.range(of: betaPattern, options: .regularExpression),
let rhsMatch = rhs.range(of: alphaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsMatch].dropFirst(5)) ?? 0
let rhsVersion = Int(rhs[rhsMatch].dropFirst(6)) ?? 0
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
if let lhsAlphaMatch = lhs.range(of: alphaPattern, options: .regularExpression),
let rhsAlphaMatch = rhs.range(of: alphaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsAlphaMatch].dropFirst(6)) ?? 0
let rhsVersion = Int(rhs[rhsAlphaMatch].dropFirst(6)) ?? 0
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
if let lhsBetaMatch = lhs.range(of: betaPattern, options: .regularExpression),
let rhsBetaMatch = rhs.range(of: betaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsBetaMatch].dropFirst(5)) ?? 0
let rhsVersion = Int(rhs[rhsBetaMatch].dropFirst(5)) ?? 0
if lhsVersion != rhsVersion {
return lhsVersion < rhsVersion ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
return .orderedSame
}
```
// XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] < components[1][i] {
return .orderedAscending
} else if components[0][i] > components[1][i] {
return .orderedDescending
}
}
if components[0].count < components[1].count {
return .orderedAscending
} else if components[0].count > components[1].count {
return .orderedDescending
}
// Handle alpha and beta versions
let alphaPattern = #"(\d+)\.(.*?)-alpha(\d+)"#
let betaPattern = #"(\d+)\.(.*?)-beta(\d+)"#
if let lhsMatch = lhs.range(of: alphaPattern, options: .regularExpression),
let rhsMatch = rhs.range(of: alphaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsMatch].dropFirst(4).dropLast()) ?? 0
let rhsVersion = Int(rhs[rhsMatch].dropFirst(4).dropLast()) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
return .orderedSame
} else if let lhsMatch = lhs.range(of: betaPattern, options: .regularExpression),
let rhsMatch = rhs.range(of: betaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsMatch].dropFirst(4).dropLast()) ?? 0
let rhsVersion = Int(rhs[rhsMatch].dropFirst(4).dropLast()) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
return .orderedSame
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] < components[1][i] {
return .orderedAscending
} else if components[0][i] > components[1][i] {
return .orderedDescending
}
}
if components[0].count < components[1].count {
return .orderedAscending
} else if components[0].count > components[1].count {
return .orderedDescending
}
// Handle alpha and beta versions
let alphaPattern = #"(\d+)\.(.*?)-alpha(\d+)"#
let betaPattern = #"(\d+)\.(.*?)-beta(\d+)"#
if let lhsMatch = lhs.range(of: alphaPattern, options: .regularExpression),
let rhsMatch = rhs.range(of: alphaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsMatch].dropFirst(4).dropLast()) ?? 0
let rhsVersion = Int(rhs[rhsMatch].dropFirst(4).dropLast()) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
return .orderedSame
} else if let lhsMatch = lhs.range(of: betaPattern, options: .regularExpression),
let rhsMatch = rhs.range(of: betaPattern, options: .regularExpression) {
let lhsVersion = Int(lhs[lhsMatch].dropFirst(4).dropLast()) ?? 0
let rhsVersion = Int(rhs[rhsMatch].dropFirst(4).dropLast()) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
return .orderedSame
}
return .orderedSame
}
```
// XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.components(separatedBy: ".") }
for i in 0..<max(components[0].count, components[1].count) {
let leftPart = Int(components[0][i]) ?? 0
let rightPart = Int(components[1][i]) ?? 0
if leftPart < rightPart {
return .orderedDescending
} else if leftPart > rightPart {
return .orderedAscending
}
// Handle alpha and beta versions
if let leftAlphaIndex = components[0][i].firstIndex(of: "-a"), let rightAlphaIndex = components[1][i].firstIndex(of: "-a") {
let leftAlphaVersion = Int(String(components[0][i][(leftAlphaIndex + 2)...])) ?? 0
let rightAlphaVersion = Int(String(components[1][i][(rightAlphaIndex + 2)...])) ?? 0
if leftAlphaVersion < rightAlphaVersion {
return .orderedDescending
} else if leftAlphaVersion > rightAlphaVersion {
return .orderedAscending
}
} else if let leftBetaIndex = components[0][i].firstIndex(of: "-b"), let rightBetaIndex = components[1][i].firstIndex(of: "-b") {
let leftBetaVersion = Int(String(components[0][i][(leftBetaIndex + 2)...])) ?? 0
let rightBetaVersion = Int(String(components[1][i][(rightBetaIndex + 2)...])) ?? 0
if leftBetaVersion < rightBetaVersion {
return .orderedDescending
} else if leftBetaVersion > rightBetaVersion {
return .orderedAscending
}
}
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.components(separatedBy: ".") }
for i in 0..<max(components[0].count, components[1].count) {
let leftPart = Int(components[0][i]) ?? 0
let rightPart = Int(components[1][i]) ?? 0
if leftPart < rightPart {
return .orderedDescending
} else if leftPart > rightPart {
return .orderedAscending
}
// Handle alpha and beta versions
if let leftAlphaIndex = components[0][i].firstIndex(of: "-a"), let rightAlphaIndex = components[1][i].firstIndex(of: "-a") {
let leftAlphaVersion = Int(String(components[0][i][(leftAlphaIndex + 2)...])) ?? 0
let rightAlphaVersion = Int(String(components[1][i][(rightAlphaIndex + 2)...])) ?? 0
if leftAlphaVersion < rightAlphaVersion {
return .orderedDescending
} else if leftAlphaVersion > rightAlphaVersion {
return .orderedAscending
}
} else if let leftBetaIndex = components[0][i].firstIndex(of: "-b"), let rightBetaIndex = components[1][i].firstIndex(of: "-b") {
let leftBetaVersion = Int(String(components[0][i][(leftBetaIndex + 2)...])) ?? 0
let rightBetaVersion = Int(String(components[1][i][(rightBetaIndex + 2)...])) ?? 0
if leftBetaVersion < rightBetaVersion {
return .orderedDescending
} else if leftBetaVersion > rightBetaVersion {
return .orderedAscending
}
}
}
return .orderedSame
}
```
if let leftAlphaIndex = components[0][i].firstIndex(of: "-a"), let rightAlphaIndex = components[1][i].firstIndex(of: "-a") { // no exact matches in call to subscriptif let leftAlphaIndex = components[0][i].firstIndex(of: "-a"), let rightAlphaIndex = components[1][i].firstIndex(of: "-a") { // no exact matches in call to subscript} else if let leftBetaIndex = components[0][i].firstIndex(of: "-b"), let rightBetaIndex = components[1][i].firstIndex(of: "-b") { // no exact matches in call to subscript} else if let leftBetaIndex = components[0][i].firstIndex(of: "-b"), let rightBetaIndex = components[1][i].firstIndex(of: "-b") { // no exact matches in call to subscriptenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.components(separatedBy: ".") }
for i in 0..<max(components[0].count, components[1].count) {
let leftPart = Int(components[0][i]) ?? 0
let rightPart = Int(components[1][i]) ?? 0
if leftPart < rightPart {
return .orderedDescending
} else if leftPart > rightPart {
return .orderedAscending
}
// Check for alpha and beta tags
if let leftAlphaIndex = components[0][i].firstIndex(of: "-a"), let rightAlphaIndex = components[1][i].firstIndex(of: "-a") {
let leftAlphaVersion = Int(String(components[0][i][(leftAlphaIndex + 2)...])) ?? 0
let rightAlphaVersion = Int(String(components[1][i][(rightAlphaIndex + 2)...])) ?? 0
if leftAlphaVersion < rightAlphaVersion {
return .orderedDescending
} else if leftAlphaVersion > rightAlphaVersion {
return .orderedAscending
}
} else if let leftBetaIndex = components[0][i].firstIndex(of: "-b"), let rightBetaIndex = components[1][i].firstIndex(of: "-b") {
let leftBetaVersion = Int(String(components[0][i][(leftBetaIndex + 2)...])) ?? 0
let rightBetaVersion = Int(String(components[1][i][(rightBetaIndex + 2)...])) ?? 0
if leftBetaVersion < rightBetaVersion {
return .orderedDescending
} else if leftBetaVersion > rightBetaVersion {
return .orderedAscending
}
}
}
return .orderedSame
}system
You are Qwen, created by Alibaba Cloud. You are a helpful assistant.
user
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.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.components(separatedBy: ".") }
for i in 0..<max(components[0].count, components[1].count) {
let leftPart = Int(components[0][i]) ?? 0
let rightPart = Int(components[1][i]) ?? 0
if leftPart < rightPart {
return .orderedDescending
} else if leftPart > rightPart {
return .orderedAscending
}
// Check for alpha and beta tags
if let leftAlphaIndex = components[0][i].firstIndex(of: "-a"), let rightAlphaIndex = components[1][i].firstIndex(of: "-a") {
let leftAlphaVersion = Int(String(components[0][i][(leftAlphaIndex + 2)...])) ?? 0
let rightAlphaVersion = Int(String(components[1][i][(rightAlphaIndex + 2)...])) ?? 0
if leftAlphaVersion < rightAlphaVersion {
return .orderedDescending
} else if leftAlphaVersion > rightAlphaVersion {
return .orderedAscending
}
} else if let leftBetaIndex = components[0][i].firstIndex(of: "-b"), let rightBetaIndex = components[1][i].firstIndex(of: "-b") {
let leftBetaVersion = Int(String(components[0][i][(leftBetaIndex + 2)...])) ?? 0
let rightBetaVersion = Int(String(components[1][i][(rightBetaIndex + 2)...])) ?? 0
if leftBetaVersion < rightBetaVersion {
return .orderedDescending
} else if leftBetaVersion > rightBetaVersion {
return .orderedAscending
}
}
}
return .orderedSame
}
```
if let leftAlphaIndex = components[0][i].firstIndex(of: "-a"), let rightAlphaIndex = components[1][i].firstIndex(of: "-a") { // no exact matches in call to subscriptif let leftAlphaIndex = components[0][i].firstIndex(of: "-a"), let rightAlphaIndex = components[1][i].firstIndex(of: "-a") { // no exact matches in call to subscript} else if let leftBetaIndex = components[0][i].firstIndex(of: "-b"), let rightBetaIndex = components[1][i].firstIndex(of: "-b") { // no exact matches in call to subscript} else if let leftBetaIndex = components[0][i].firstIndex(of: "-b"), let rightBetaIndex = components[1][i].firstIndex(of: "-b") { // no exact matches in call to subscript