Metadata
| Key | Value |
|---|---|
| engine | modal |
| prompt | instruct |
| temp | 0.2 |
| top_p | 0.95 |
| max_new_tokens | 1024 |
| n_completions | 10 |
Solutions
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
let attributesString = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined()
return "<\(name)\(attributesString)>\(childrenString)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
let attributesString = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined()
return "<\(name)\(attributesString)>\(childrenString)</\(name)>"
}
}
```Start: a ["href": "swifteval"] // XCTAssertEqual failed: (Start: div [:]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 result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```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 result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined()
return "<\(name)\(attributesString)>\(childrenString)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined()
return "<\(name)\(attributesString)>\(childrenString)</\(name)>"
}
}
```Start: a ["href": "swifteval"] // XCTAssertEqual failed: (Start: div [:]indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```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 result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```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 result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```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 result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```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 result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```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 result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var result: Double = 0
for token in tokens {
switch token {
case "+":
result += try calculate(String(tokens[tokens.index(after: tokens.startIndex))]))
case "-":
result -= try calculate(String(tokens[tokens.index(after: tokens.startIndex))]))
case "*":
result *= try calculate(String(tokens[tokens.index(after: tokens.startIndex))]))
case "/":
result /= try calculate(String(tokens[tokens.index(after: tokens.startIndex))]))
case "(":
result = try calculate(String(tokens[tokens.index(after: tokens.startIndex)]))
case ")":
return result
default:
result = Double(token) ?? 0
}
}
return result
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var result: Double = 0
for token in tokens {
switch token {
case "+":
result += try calculate(String(tokens[tokens.index(after: tokens.startIndex))]))
case "-":
result -= try calculate(String(tokens[tokens.index(after: tokens.startIndex))]))
case "*":
result *= try calculate(String(tokens[tokens.index(after: tokens.startIndex))]))
case "/":
result /= try calculate(String(tokens[tokens.index(after: tokens.startIndex))]))
case "(":
result = try calculate(String(tokens[tokens.index(after: tokens.startIndex)]))
case ")":
return result
default:
result = Double(token) ?? 0
}
}
return result
}
```result += try calculate(String(tokens[tokens.index(after: tokens.startIndex))])) // expected expression in list of expressionsresult += try calculate(String(tokens[tokens.index(after: tokens.startIndex))])) // expected ',' separatorresult -= try calculate(String(tokens[tokens.index(after: tokens.startIndex))])) // expected ',' separatorresult -= try calculate(String(tokens[tokens.index(after: tokens.startIndex))])) // expected expression in list of expressionsresult *= try calculate(String(tokens[tokens.index(after: tokens.startIndex))])) // expected expression in list of expressionsresult *= try calculate(String(tokens[tokens.index(after: tokens.startIndex))])) // expected ',' separatorresult /= try calculate(String(tokens[tokens.index(after: tokens.startIndex))])) // expected ',' separatorresult /= try calculate(String(tokens[tokens.index(after: tokens.startIndex))])) // expected expression in list of expressionsenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack: [Double] = []
var operators: [String] = []
var currentNumber: Double?
var currentOperator: String?
for char in string {
switch char {
case "0"..."9":
if let currentNumber = currentNumber {
currentNumber = currentNumber * 10 + Double(String(char))!
} else {
currentNumber = Double(String(char))!
}
case "+", "-", "*", "/":
if let currentNumber = currentNumber {
stack.append(currentNumber)
currentNumber = nil
}
if let currentOperator = currentOperator {
operators.append(currentOperator)
currentOperator = nil
}
if char == "+" {
currentOperator = "+"
} else if char == "-" {
currentOperator = "-"
} else if char == "*" {
currentOperator = "*"
} else if char == "/" {
currentOperator = "/"
}
case "(":
if let currentNumber = currentNumber {
stack.append(currentNumber)
currentNumber = nil
}
if let currentOperator = currentOperator {
operators.append(currentOperator)
currentOperator = nil
}
currentOperator = "("
case ")":
if let currentOperator = currentOperator {
operators.append(currentOperator)
currentOperator = nil
}
currentOperator = ")"
default:
throw CalculateError.invalidInput
}
}
if let currentNumber = currentNumber {
stack.append(currentNumber)
}
if let currentOperator = currentOperator {
operators.append(currentOperator)
}
while !operators.isEmpty {
let operator = operators.removeLast()
if operator == "(" {
continue
}
if operator == ")" {
break
}
let right = stack.removeLast()
let left = stack.removeLast()
if operator == "+" {
stack.append(left + right)
} else if operator == "-" {
stack.append(left - right)
} else if operator == "*" {
stack.append(left * right)
} else if operator == "/" {
stack.append(left / right)
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack: [Double] = []
var operators: [String] = []
var currentNumber: Double?
var currentOperator: String?
for char in string {
switch char {
case "0"..."9":
if let currentNumber = currentNumber {
currentNumber = currentNumber * 10 + Double(String(char))!
} else {
currentNumber = Double(String(char))!
}
case "+", "-", "*", "/":
if let currentNumber = currentNumber {
stack.append(currentNumber)
currentNumber = nil
}
if let currentOperator = currentOperator {
operators.append(currentOperator)
currentOperator = nil
}
if char == "+" {
currentOperator = "+"
} else if char == "-" {
currentOperator = "-"
} else if char == "*" {
currentOperator = "*"
} else if char == "/" {
currentOperator = "/"
}
case "(":
if let currentNumber = currentNumber {
stack.append(currentNumber)
currentNumber = nil
}
if let currentOperator = currentOperator {
operators.append(currentOperator)
currentOperator = nil
}
currentOperator = "("
case ")":
if let currentOperator = currentOperator {
operators.append(currentOperator)
currentOperator = nil
}
currentOperator = ")"
default:
throw CalculateError.invalidInput
}
}
if let currentNumber = currentNumber {
stack.append(currentNumber)
}
if let currentOperator = currentOperator {
operators.append(currentOperator)
}
while !operators.isEmpty {
let operator = operators.removeLast()
if operator == "(" {
continue
}
if operator == ")" {
break
}
let right = stack.removeLast()
let left = stack.removeLast()
if operator == "+" {
stack.append(left + right)
} else if operator == "-" {
stack.append(left - right)
} else if operator == "*" {
stack.append(left * right)
} else if operator == "/" {
stack.append(left / right)
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
}
```currentNumber = currentNumber * 10 + Double(String(char))! // cannot assign to value: 'currentNumber' is a 'let' constantcurrentNumber = nil // cannot assign to value: 'currentNumber' is a 'let' constantcurrentNumber = nil // 'nil' cannot be assigned to type 'Double'currentOperator = nil // 'nil' cannot be assigned to type 'String'currentOperator = nil // cannot assign to value: 'currentOperator' is a 'let' constantcurrentNumber = nil // cannot assign to value: 'currentNumber' is a 'let' constantcurrentNumber = nil // 'nil' cannot be assigned to type 'Double'currentOperator = nil // 'nil' cannot be assigned to type 'String'currentOperator = nil // cannot assign to value: 'currentOperator' is a 'let' constantcurrentOperator = nil // 'nil' cannot be assigned to type 'String'currentOperator = nil // cannot assign to value: 'currentOperator' is a 'let' constantlet operator = operators.removeLast() // keyword 'operator' cannot be used as an identifier hereif operator == "(" { // 'operator' may only be declared at file scopeif operator == "(" { // expected expression, var, or let in 'if' conditionif operator == "(" { // operator must be declared as 'prefix', 'postfix', or 'infix'if operator == ")" { // 'operator' may only be declared at file scopeif operator == ")" { // operator must be declared as 'prefix', 'postfix', or 'infix'if operator == ")" { // expected expression, var, or let in 'if' conditionif operator == "+" { // 'operator' may only be declared at file scopeif operator == "+" { // expected expression, var, or let in 'if' conditionif operator == "+" { // operator must be declared as 'prefix', 'postfix', or 'infix'} else if operator == "-" { // operator must be declared as 'prefix', 'postfix', or 'infix'} else if operator == "-" { // 'operator' may only be declared at file scope} else if operator == "-" { // expected expression, var, or let in 'if' condition} else if operator == "*" { // expected expression, var, or let in 'if' condition} else if operator == "*" { // 'operator' may only be declared at file scope} else if operator == "*" { // operator must be declared as 'prefix', 'postfix', or 'infix'} else if operator == "/" { // operator must be declared as 'prefix', 'postfix', or 'infix'} else if operator == "/" { // expected expression, var, or let in 'if' condition} else if operator == "/" { // 'operator' may only be declared at file scopeenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.components(separatedBy: "+-*/()")
var stack = [Double]()
for token in tokens {
switch token {
case "(":
stack.append(try calculate(string[string.index(after: string.startIndex)...]))
case ")":
stack.append(stack.removeLast())
default:
stack.append(Double(token)!)
}
}
return stack.removeLast()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.components(separatedBy: "+-*/()")
var stack = [Double]()
for token in tokens {
switch token {
case "(":
stack.append(try calculate(string[string.index(after: string.startIndex)...]))
case ")":
stack.append(stack.removeLast())
default:
stack.append(Double(token)!)
}
}
return stack.removeLast()
}
```stack.append(try calculate(string[string.index(after: string.startIndex)...])) // subscript 'subscript(_:)' requires the types 'String.Index' and 'Int' be equivalentenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack: [Double] = []
for token in tokens {
switch token {
case "+":
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(a + b)
case "-":
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(a - b)
case "*":
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(a * b)
case "/":
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(a / b)
case "(":
stack.append(0)
case ")":
let a = stack.removeLast()
let b = stack.removeLast()
stack.append(a + b)
default:
guard let double = Double(String(token)) else {
throw CalculateError.invalidInput
}
stack.append(double)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.removeLast()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack: [Double] = []
for token in tokens {
switch token {
case "+":
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(a + b)
case "-":
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(a - b)
case "*":
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(a * b)
case "/":
let b = stack.removeLast()
let a = stack.removeLast()
stack.append(a / b)
case "(":
stack.append(0)
case ")":
let a = stack.removeLast()
let b = stack.removeLast()
stack.append(a + b)
default:
guard let double = Double(String(token)) else {
throw CalculateError.invalidInput
}
stack.append(double)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.removeLast()
}
``` // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.components(separatedBy: "+-*/()")
var stack: [Double] = []
for token in tokens {
switch token {
case "(":
break
case ")":
if let value = stack.popLast() {
stack.append(value)
} else {
throw CalculateError.invalidInput
}
default:
if let value = Double(token) {
stack.append(value)
} else {
throw CalculateError.invalidInput
}
}
}
if let result = stack.popLast() {
return result
} else {
throw CalculateError.invalidInput
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.components(separatedBy: "+-*/()")
var stack: [Double] = []
for token in tokens {
switch token {
case "(":
break
case ")":
if let value = stack.popLast() {
stack.append(value)
} else {
throw CalculateError.invalidInput
}
default:
if let value = Double(token) {
stack.append(value)
} else {
throw CalculateError.invalidInput
}
}
}
if let result = stack.popLast() {
return result
} else {
throw CalculateError.invalidInput
}
}
``` // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack: [Double] = []
var operators: [String] = []
var currentNumber: Double?
var currentOperator: String?
var isNumber = false
var isOperator = false
var isOpenBracket = false
var isCloseBracket = false
for character in string {
switch character {
case "0"..."9":
isNumber = true
isOperator = false
isOpenBracket = false
isCloseBracket = false
currentNumber = currentNumber.map { $0 * 10 + Double(String(character))! } ?? Double(String(character))!
case "+", "-", "*", "/":
isNumber = false
isOperator = true
isOpenBracket = false
isCloseBracket = false
currentOperator = String(character)
case "(":
isNumber = false
isOperator = false
isOpenBracket = true
isCloseBracket = false
case ")":
isNumber = false
isOperator = false
isOpenBracket = false
isCloseBracket = true
default:
break
}
if isNumber {
stack.append(currentNumber!)
currentNumber = nil
} else if isOperator {
if let currentOperator = currentOperator {
operators.append(currentOperator)
currentOperator = nil
}
} else if isOpenBracket {
stack.append(0)
} else if isCloseBracket {
while !operators.isEmpty && operators.last != "(" {
let operator = operators.removeLast()
let number = stack.removeLast()
stack.append(calculate(number, operator))
}
if !operators.isEmpty && operators.last == "(" {
operators.removeLast()
}
}
}
while !operators.isEmpty {
let operator = operators.removeLast()
let number = stack.removeLast()
stack.append(calculate(number, operator))
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
func calculate(_ number: Double, _ operator: String) -> Double {
switch operator {
case "+":
return number
case "-":
return -number
case "*":
return number * number
case "/":
return number / number
default:
return 0
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack: [Double] = []
var operators: [String] = []
var currentNumber: Double?
var currentOperator: String?
var isNumber = false
var isOperator = false
var isOpenBracket = false
var isCloseBracket = false
for character in string {
switch character {
case "0"..."9":
isNumber = true
isOperator = false
isOpenBracket = false
isCloseBracket = false
currentNumber = currentNumber.map { $0 * 10 + Double(String(character))! } ?? Double(String(character))!
case "+", "-", "*", "/":
isNumber = false
isOperator = true
isOpenBracket = false
isCloseBracket = false
currentOperator = String(character)
case "(":
isNumber = false
isOperator = false
isOpenBracket = true
isCloseBracket = false
case ")":
isNumber = false
isOperator = false
isOpenBracket = false
isCloseBracket = true
default:
break
}
if isNumber {
stack.append(currentNumber!)
currentNumber = nil
} else if isOperator {
if let currentOperator = currentOperator {
operators.append(currentOperator)
currentOperator = nil
}
} else if isOpenBracket {
stack.append(0)
} else if isCloseBracket {
while !operators.isEmpty && operators.last != "(" {
let operator = operators.removeLast()
let number = stack.removeLast()
stack.append(calculate(number, operator))
}
if !operators.isEmpty && operators.last == "(" {
operators.removeLast()
}
}
}
while !operators.isEmpty {
let operator = operators.removeLast()
let number = stack.removeLast()
stack.append(calculate(number, operator))
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.first!
}
func calculate(_ number: Double, _ operator: String) -> Double {
switch operator {
case "+":
return number
case "-":
return -number
case "*":
return number * number
case "/":
return number / number
default:
return 0
}
}
```currentOperator = nil // cannot assign to value: 'currentOperator' is a 'let' constantcurrentOperator = nil // 'nil' cannot be assigned to type 'String'let operator = operators.removeLast() // keyword 'operator' cannot be used as an identifier herestack.append(calculate(number, operator)) // expected expression in list of expressionsstack.append(calculate(number, operator)) // cannot convert value of type 'Double' to expected argument type 'String'stack.append(calculate(number, operator)) // ')' is not allowed in operator nameslet operator = operators.removeLast() // keyword 'operator' cannot be used as an identifier herestack.append(calculate(number, operator)) // expected expression in list of expressionsstack.append(calculate(number, operator)) // ')' is not allowed in operator namesstack.append(calculate(number, operator)) // cannot convert value of type 'Double' to expected argument type 'String'switch operator { // expected expression in 'switch' statementswitch operator { // expected operator name in operator declarationenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack: [Double] = []
var currentIndex = string.startIndex
while currentIndex < string.endIndex {
let token = string[currentIndex]
switch token {
case "+", "-", "*", "/":
let operand1 = stack.removeLast()
let operand2 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
case "(":
stack.append(Double(string[currentIndex...])!)
currentIndex = string.index(after: currentIndex)
case ")":
let operand = stack.removeLast()
stack.append(operand)
currentIndex = string.index(after: currentIndex)
default:
currentIndex = string.index(after: currentIndex)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.removeLast()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack: [Double] = []
var currentIndex = string.startIndex
while currentIndex < string.endIndex {
let token = string[currentIndex]
switch token {
case "+", "-", "*", "/":
let operand1 = stack.removeLast()
let operand2 = stack.removeLast()
let result: Double
switch token {
case "+":
result = operand1 + operand2
case "-":
result = operand1 - operand2
case "*":
result = operand1 * operand2
case "/":
result = operand1 / operand2
default:
throw CalculateError.invalidInput
}
stack.append(result)
case "(":
stack.append(Double(string[currentIndex...])!)
currentIndex = string.index(after: currentIndex)
case ")":
let operand = stack.removeLast()
stack.append(operand)
currentIndex = string.index(after: currentIndex)
default:
currentIndex = string.index(after: currentIndex)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack.removeLast()
}
``` // Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack: [Double] = []
for token in tokens {
switch token {
case "+":
guard let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a + b)
case "-":
guard let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a - b)
case "*":
guard let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a * b)
case "/":
guard let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a / b)
case "(":
stack.append(0)
case ")":
guard let a = stack.popLast() else {
throw CalculateError.invalidInput
}
default:
guard let value = Double(String(token)) else {
throw CalculateError.invalidInput
}
stack.append(value)
}
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack: [Double] = []
for token in tokens {
switch token {
case "+":
guard let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a + b)
case "-":
guard let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a - b)
case "*":
guard let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a * b)
case "/":
guard let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a / b)
case "(":
stack.append(0)
case ")":
guard let a = stack.popLast() else {
throw CalculateError.invalidInput
}
default:
guard let value = Double(String(token)) else {
throw CalculateError.invalidInput
}
stack.append(value)
}
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
```guard let a = stack.popLast() else { // value 'a' was defined but never used; consider replacing with boolean test // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [Double]()
for token in tokens {
switch token {
case "+", "-", "*", "/":
let op1 = stack.removeLast()
let op2 = stack.removeLast()
switch token {
case "+":
stack.append(op1 + op2)
case "-":
stack.append(op2 - op1)
case "*":
stack.append(op1 * op2)
case "/":
stack.append(op2 / op1)
default:
throw CalculateError.invalidInput
}
case "(":
stack.append(Double(token)!)
case ")":
let op = stack.removeLast()
stack.append(op)
default:
stack.append(Double(token)!)
}
}
return stack.removeLast()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [Double]()
for token in tokens {
switch token {
case "+", "-", "*", "/":
let op1 = stack.removeLast()
let op2 = stack.removeLast()
switch token {
case "+":
stack.append(op1 + op2)
case "-":
stack.append(op2 - op1)
case "*":
stack.append(op1 * op2)
case "/":
stack.append(op2 / op1)
default:
throw CalculateError.invalidInput
}
case "(":
stack.append(Double(token)!)
case ")":
let op = stack.removeLast()
stack.append(op)
default:
stack.append(Double(token)!)
}
}
return stack.removeLast()
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.components(separatedBy: "+-*/()")
var stack: [Double] = []
for token in tokens {
switch token {
case "(":
break
case ")":
if let value = stack.popLast() {
stack.append(value)
} else {
throw CalculateError.invalidInput
}
default:
if let value = Double(token) {
stack.append(value)
} else {
throw CalculateError.invalidInput
}
}
}
if stack.count == 1 {
return stack.first!
} else {
throw CalculateError.invalidInput
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.components(separatedBy: "+-*/()")
var stack: [Double] = []
for token in tokens {
switch token {
case "(":
break
case ")":
if let value = stack.popLast() {
stack.append(value)
} else {
throw CalculateError.invalidInput
}
default:
if let value = Double(token) {
stack.append(value)
} else {
throw CalculateError.invalidInput
}
}
}
if stack.count == 1 {
return stack.first!
} else {
throw CalculateError.invalidInput
}
}
``` // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'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)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'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)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'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)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'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)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'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)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'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)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'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)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'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)
return (output, "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output, "")
}
```return (output, "") // cannot convert return expression of type '(String?, String)' to return type '(String, String)'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
let errpipe = Pipe()
task.standardOutput = outpipe
task.standardError = errpipe
task.launch()
let outdata = outpipe.fileHandleForReading.readDataToEndOfFile()
let errdata = errpipe.fileHandleForReading.readDataToEndOfFile()
task.waitUntilExit()
return (String(data: outdata, encoding: .utf8)!, String(data: errdata, encoding: .utf8)!)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outpipe = Pipe()
let errpipe = Pipe()
task.standardOutput = outpipe
task.standardError = errpipe
task.launch()
let outdata = outpipe.fileHandleForReading.readDataToEndOfFile()
let errdata = errpipe.fileHandleForReading.readDataToEndOfFile()
task.waitUntilExit()
return (String(data: outdata, encoding: .utf8)!, String(data: errdata, encoding: .utf8)!)
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let result = cache[arg] {
return result
} else {
let result = function(arg)
cache[arg] = result
return result
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let result = cache[arg] {
return result
} else {
let result = function(arg)
cache[arg] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let result = cache[arg] {
return result
} else {
let result = function(arg)
cache[arg] = result
return result
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let result = cache[arg] {
return result
} else {
let result = function(arg)
cache[arg] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let result = cache[arg] {
return result
} else {
let result = function(arg)
cache[arg] = result
return result
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { (arg: T) -> U in
if let result = cache[arg] {
return result
} else {
let result = function(arg)
cache[arg] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let value = cache[key] {
return value
} else {
let value = function(key)
cache[key] = value
return value
}
}
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var currentAttempt = 0
while currentAttempt < attempts {
do {
return try task()
} catch {
currentAttempt += 1
}
}
throw error
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = factories[ObjectIdentifier(type)] {
return factory() as? T
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = factories[ObjectIdentifier(type)] {
return factory() as? T
}
return nil
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = factories[ObjectIdentifier(type)] {
return factory() as? T
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = factories[ObjectIdentifier(type)] {
return factory() as? T
}
return nil
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = factories[ObjectIdentifier(type)] {
return factory() as? T
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = factories[ObjectIdentifier(type)] {
return factory() as? T
}
return nil
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else { return nil }
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [ObjectIdentifier: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[ObjectIdentifier(type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[ObjectIdentifier(type)] else {
return nil
}
return factory() as? T
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
let machine = StateMachine(state: "A")
machine.registerTransition(from: "A", to: "B", event: "next")
machine.trigger(event: "next")
print(machine.state) // B
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'private var transitions: [State: [Event: State]] = [:] // type 'State' does not conform to protocol 'Hashable'private var transitions: [State: [Event: State]] = [:] // type 'Event' does not conform to protocol 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'State' conform to 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:default:)' on 'Dictionary' requires that 'State' conform to 'Hashable'XCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'private var transitions: [State: [Event: State]] = [:] // type 'State' does not conform to protocol 'Hashable'private var transitions: [State: [Event: State]] = [:] // type 'Event' does not conform to protocol 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'State' conform to 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:default:)' on 'Dictionary' requires that 'State' conform to 'Hashable'XCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
let machine = StateMachine<String, String>(state: "A")
machine.registerTransition(from: "A", to: "B", event: "go")
machine.trigger(event: "go")
print(machine.state) // "B"
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'private var transitions: [State: [Event: State]] = [:] // type 'State' does not conform to protocol 'Hashable'private var transitions: [State: [Event: State]] = [:] // type 'Event' does not conform to protocol 'Hashable'guard let nextState = transitions[state]?[event] else { return } // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'State' conform to 'Hashable'guard let nextState = transitions[state]?[event] else { return } // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:default:)' on 'Dictionary' requires that 'State' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'XCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
let machine = StateMachine(state: "A")
machine.registerTransition(from: "A", to: "B", event: "go")
machine.registerTransition(from: "B", to: "A", event: "back")
machine.trigger(event: "go")
print(machine.state) // "B"
machine.trigger(event: "back")
print(machine.state) // "A"
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'private var transitions: [State: [Event: State]] = [:] // type 'State' does not conform to protocol 'Hashable'private var transitions: [State: [Event: State]] = [:] // type 'Event' does not conform to protocol 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'State' conform to 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:default:)' on 'Dictionary' requires that 'State' conform to 'Hashable'XCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [Transition] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let transition = transitions.first(where: { $0.event == event }) else {
return
}
state = transition.to
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append(Transition(from: from, to: to, event: event))
}
}
struct Transition {
let from: State
let to: State
let event: Event
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [Transition] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let transition = transitions.first(where: { $0.event == event }) else {
return
}
state = transition.to
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append(Transition(from: from, to: to, event: event))
}
}
struct Transition {
let from: State
let to: State
let event: Event
}
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'let from: State // cannot find type 'State' in scopelet to: State // cannot find type 'State' in scopelet event: Event // cannot find type 'Event' in scopeXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
let machine = StateMachine(state: "A")
machine.registerTransition(from: "A", to: "B", event: "event1")
machine.registerTransition(from: "B", to: "C", event: "event2")
machine.registerTransition(from: "C", to: "D", event: "event3")
machine.registerTransition(from: "D", to: "A", event: "event4")
machine.trigger(event: "event1")
machine.trigger(event: "event2")
machine.trigger(event: "event3")
machine.trigger(event: "event4")
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'private var transitions: [State: [Event: State]] = [:] // type 'State' does not conform to protocol 'Hashable'private var transitions: [State: [Event: State]] = [:] // type 'Event' does not conform to protocol 'Hashable'guard let nextState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'State' conform to 'Hashable'guard let nextState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:default:)' on 'Dictionary' requires that 'State' conform to 'Hashable'XCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'private var transitions: [State: [Event: State]] = [:] // type 'State' does not conform to protocol 'Hashable'private var transitions: [State: [Event: State]] = [:] // type 'Event' does not conform to protocol 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'State' conform to 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:default:)' on 'Dictionary' requires that 'State' conform to 'Hashable'XCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [Transition] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let transition = transitions.first(where: { $0.event == event }) else {
return
}
state = transition.to
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append(Transition(from: from, to: to, event: event))
}
}
struct Transition {
let from: State
let to: State
let event: Event
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [Transition] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let transition = transitions.first(where: { $0.event == event }) else {
return
}
state = transition.to
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append(Transition(from: from, to: to, event: event))
}
}
struct Transition {
let from: State
let to: State
let event: Event
}
let machine = StateMachine(state: "A")
machine.registerTransition(from: "A", to: "B", event: "next")
machine.trigger(event: "next")
print(machine.state) // B
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'let from: State // cannot find type 'State' in scopelet to: State // cannot find type 'State' in scopelet event: Event // cannot find type 'Event' in scopeXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [Transition] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let transition = transitions.first(where: { $0.event == event }) else {
return
}
state = transition.to
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append(Transition(from: from, to: to, event: event))
}
}
struct Transition {
let from: State
let to: State
let event: Event
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [Transition] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let transition = transitions.first(where: { $0.event == event }) else {
return
}
state = transition.to
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append(Transition(from: from, to: to, event: event))
}
}
struct Transition {
let from: State
let to: State
let event: Event
}
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'let from: State // cannot find type 'State' in scopelet to: State // cannot find type 'State' in scopelet event: Event // cannot find type 'Event' in scopeXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State, Event>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```class StateMachine<State, Event>: StateMachineProtocol { // type 'StateMachine<State, Event>' does not conform to protocol 'StateMachineProtocol'private var transitions: [State: [Event: State]] = [:] // type 'State' does not conform to protocol 'Hashable'private var transitions: [State: [Event: State]] = [:] // type 'Event' does not conform to protocol 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'State' conform to 'Hashable'guard let newState = transitions[state]?[event] else { // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:)' on 'Dictionary' requires that 'Event' conform to 'Hashable'transitions[from, default: [:]][event] = to // referencing subscript 'subscript(_:default:)' on 'Dictionary' requires that 'State' conform to 'Hashable'XCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .yellow) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .red) // 'state' is inaccessible due to 'private' protection levelXCTAssertEqual(stateMachine.state, .green) // 'state' is inaccessible due to 'private' protection levelindirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
extension Array where Element == FileSystemNode {
func calculateInfo() -> FileSystemInfo {
return FileSystemInfoImpl(totalSize: reduce(0) { $0 + $1.totalSize },
filesCount: reduce(0) { $0 + $1.filesCount },
treeDepth: reduce(0) { max($0, $1.treeDepth) })
}
}
private struct FileSystemInfoImpl: FileSystemInfo {
let totalSize: Int
let filesCount: Int
let treeDepth: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
extension Array where Element == FileSystemNode {
func calculateInfo() -> FileSystemInfo {
return FileSystemInfoImpl(totalSize: reduce(0) { $0 + $1.totalSize },
filesCount: reduce(0) { $0 + $1.filesCount },
treeDepth: reduce(0) { max($0, $1.treeDepth) })
}
}
private struct FileSystemInfoImpl: FileSystemInfo {
let totalSize: Int
let filesCount: Int
let treeDepth: Int
}
```treeDepth: reduce(0) { max($0, $1.treeDepth) }) // use of 'max' refers to instance method rather than global function 'max' in module 'Swift'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 0
}
}
}
```return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 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 0
case .directory(_, let contents):
return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 0
}
}
}
```return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 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 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
``` // XCTAssertEqual failed: (3) is not equal to (4)indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
``` // XCTAssertEqual failed: (3) is not equal to (4)indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
``` // XCTAssertEqual failed: (3) is not equal to (4)indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 0
}
}
}
```return 1 + contents.max(by: { $0.treeDepth < $1.treeDepth })?.treeDepth ?? 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 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
``` // XCTAssertEqual failed: (3) is not equal to (4)indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
``` // XCTAssertEqual failed: (3) is not equal to (4)indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 0
case .directory(_, let contents):
return 1 + contents.reduce(0) { $0 > $1.treeDepth ? $0 : $1.treeDepth }
}
}
}
``` // XCTAssertEqual failed: (3) is not equal to (4)protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [Element]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [Element]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [Element]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [Element]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements = [T]()
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var items: [T] = []
init() {}
func push(_ element: T) {
items.append(element)
}
func pop() -> T? {
return items.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var items: [T] = []
init() {}
func push(_ element: T) {
items.append(element)
}
func pop() -> T? {
return items.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var items = [T]()
init() {}
func push(_ element: T) {
items.append(element)
}
func pop() -> T? {
return items.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var items = [T]()
init() {}
func push(_ element: T) {
items.append(element)
}
func pop() -> T? {
return items.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements: [Element] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements: [Element] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
var items = [T]()
init() {}
func push(_ element: T) {
items.append(element)
}
func pop() -> T? {
return items.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
var items = [T]()
init() {}
func push(_ element: T) {
items.append(element)
}
func pop() -> T? {
return items.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements: [T] = []
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
typealias Element = T
private var elements: [T] = []
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol 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 capacity: Int
private var order: [Key]
init(capacity: Int) {
self.storage = [Key: Element]()
self.capacity = capacity
self.order = [Key]()
}
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 {
if let value = newValue {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
storage[key] = value
} else {
order.append(key)
storage[key] = value
if storage.count > capacity {
let removedKey = order.removeFirst()
storage.removeValue(forKey: removedKey)
}
}
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
storage.removeValue(forKey: key)
}
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element]
private var capacity: Int
private var order: [Key]
init(capacity: Int) {
self.storage = [Key: Element]()
self.capacity = capacity
self.order = [Key]()
}
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 {
if let value = newValue {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
storage[key] = value
} else {
order.append(key)
storage[key] = value
if storage.count > capacity {
let removedKey = order.removeFirst()
storage.removeValue(forKey: removedKey)
}
}
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
storage.removeValue(forKey: 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 cache: [Key: Element] = [:]
private var capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
order.removeAll { $0 == key }
order.append(key)
return element
}
return nil
}
set {
if let newValue = newValue {
cache[key] = newValue
order.removeAll { $0 == key }
order.append(key)
if order.count > capacity {
let removedKey = order.removeFirst()
cache.removeValue(forKey: removedKey)
}
} else {
cache.removeValue(forKey: key)
order.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = cache[key] {
order.removeAll { $0 == key }
order.append(key)
return element
}
return nil
}
set {
if let newValue = newValue {
cache[key] = newValue
order.removeAll { $0 == key }
order.append(key)
if order.count > capacity {
let removedKey = order.removeFirst()
cache.removeValue(forKey: removedKey)
}
} else {
cache.removeValue(forKey: key)
order.removeAll { $0 == 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 var capacity: Int
init(capacity: Int) {
self.storage = [Key: Element]()
self.order = [Key]()
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
let element = storage[key]
order.remove(at: index)
order.append(key)
return element
} else {
return nil
}
}
set {
if let newValue = newValue {
if let index = order.firstIndex(of: key) {
storage[key] = newValue
order.remove(at: index)
order.append(key)
} else {
storage[key] = newValue
order.append(key)
if order.count > capacity {
let removedKey = order.remove(at: 0)
storage.removeValue(forKey: removedKey)
}
}
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
storage.removeValue(forKey: key)
}
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element]
private var order: [Key]
private var capacity: Int
init(capacity: Int) {
self.storage = [Key: Element]()
self.order = [Key]()
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
let element = storage[key]
order.remove(at: index)
order.append(key)
return element
} else {
return nil
}
}
set {
if let newValue = newValue {
if let index = order.firstIndex(of: key) {
storage[key] = newValue
order.remove(at: index)
order.append(key)
} else {
storage[key] = newValue
order.append(key)
if order.count > capacity {
let removedKey = order.remove(at: 0)
storage.removeValue(forKey: removedKey)
}
}
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
storage.removeValue(forKey: 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 value = newValue {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
storage[key] = value
} else {
order.append(key)
storage[key] = value
if storage.count > capacity {
let removedKey = order.removeFirst()
storage.removeValue(forKey: removedKey)
}
}
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
storage.removeValue(forKey: key)
}
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var 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 value = newValue {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
storage[key] = value
} else {
order.append(key)
storage[key] = value
if storage.count > capacity {
let removedKey = order.removeFirst()
storage.removeValue(forKey: removedKey)
}
}
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
storage.removeValue(forKey: 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 capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = storage[key] {
order.removeAll { $0 == key }
order.append(key)
return element
}
return nil
}
set {
if let newValue = newValue {
storage[key] = newValue
order.removeAll { $0 == key }
order.append(key)
if order.count > capacity {
let removedKey = order.removeFirst()
storage.removeValue(forKey: removedKey)
}
} else {
storage.removeValue(forKey: key)
order.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private var capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let element = storage[key] {
order.removeAll { $0 == key }
order.append(key)
return element
}
return nil
}
set {
if let newValue = newValue {
storage[key] = newValue
order.removeAll { $0 == key }
order.append(key)
if order.count > capacity {
let removedKey = order.removeFirst()
storage.removeValue(forKey: removedKey)
}
} else {
storage.removeValue(forKey: key)
order.removeAll { $0 == 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 cache: [Key: Element] = [:]
private var capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
order.removeAll { $0 == key }
order.append(key)
return element
}
set {
if let element = newValue {
cache[key] = element
order.removeAll { $0 == key }
order.append(key)
if order.count > capacity {
let removedKey = order.removeFirst()
cache.removeValue(forKey: removedKey)
}
} else {
cache.removeValue(forKey: key)
order.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
order.removeAll { $0 == key }
order.append(key)
return element
}
set {
if let element = newValue {
cache[key] = element
order.removeAll { $0 == key }
order.append(key)
if order.count > capacity {
let removedKey = order.removeFirst()
cache.removeValue(forKey: removedKey)
}
} else {
cache.removeValue(forKey: key)
order.removeAll { $0 == 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 capacity: Int
private var order: [Key]
init(capacity: Int) {
self.storage = [Key: Element]()
self.capacity = capacity
self.order = [Key]()
}
subscript(key: Key) -> Element? {
get {
guard let index = order.firstIndex(of: key) else {
return nil
}
order.remove(at: index)
order.append(key)
return storage[key]
}
set {
guard let newValue = newValue else {
storage[key] = nil
order.removeAll { $0 == key }
return
}
storage[key] = newValue
order.removeAll { $0 == key }
order.append(key)
if order.count > capacity {
let removedKey = order.removeFirst()
storage[removedKey] = nil
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element]
private var capacity: Int
private var order: [Key]
init(capacity: Int) {
self.storage = [Key: Element]()
self.capacity = capacity
self.order = [Key]()
}
subscript(key: Key) -> Element? {
get {
guard let index = order.firstIndex(of: key) else {
return nil
}
order.remove(at: index)
order.append(key)
return storage[key]
}
set {
guard let newValue = newValue else {
storage[key] = nil
order.removeAll { $0 == key }
return
}
storage[key] = newValue
order.removeAll { $0 == key }
order.append(key)
if order.count > capacity {
let removedKey = order.removeFirst()
storage[removedKey] = nil
}
}
}
}
```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 cache: [Key: Element]
private var capacity: Int
private var order: [Key]
init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.order = [Key]()
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return cache[key]
}
return nil
}
set {
if let value = newValue {
if cache[key] == nil {
order.append(key)
if order.count > capacity {
let removedKey = order.remove(at: 0)
cache.removeValue(forKey: removedKey)
}
}
cache[key] = value
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
cache.removeValue(forKey: key)
}
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element]
private var capacity: Int
private var order: [Key]
init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.order = [Key]()
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return cache[key]
}
return nil
}
set {
if let value = newValue {
if cache[key] == nil {
order.append(key)
if order.count > capacity {
let removedKey = order.remove(at: 0)
cache.removeValue(forKey: removedKey)
}
}
cache[key] = value
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
cache.removeValue(forKey: 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]
}
return nil
}
set {
if let value = newValue {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
storage[key] = value
if storage.count > capacity {
let removedKey = order.removeFirst()
storage.removeValue(forKey: removedKey)
}
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
storage.removeValue(forKey: key)
}
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var 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]
}
return nil
}
set {
if let value = newValue {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
storage[key] = value
if storage.count > capacity {
let removedKey = order.removeFirst()
storage.removeValue(forKey: removedKey)
}
} else {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
storage.removeValue(forKey: 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 cache: [Key: Element] = [:]
private var order: [Key: Date] = [:]
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let newValue = newValue {
cache[key] = newValue
order[key] = Date()
if cache.count > capacity {
let leastRecentlyUsed = order.sorted { $0.value < $1.value }.first!.key
cache.removeValue(forKey: leastRecentlyUsed)
order.removeValue(forKey: leastRecentlyUsed)
}
} else {
cache.removeValue(forKey: key)
order.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var order: [Key: Date] = [:]
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let newValue = newValue {
cache[key] = newValue
order[key] = Date()
if cache.count > capacity {
let leastRecentlyUsed = order.sorted { $0.value < $1.value }.first!.key
cache.removeValue(forKey: leastRecentlyUsed)
order.removeValue(forKey: leastRecentlyUsed)
}
} else {
cache.removeValue(forKey: key)
order.removeValue(forKey: 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, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache[key] = nil
return nil
}
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache[key] = nil
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 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else {
return nil
}
if expiration < Date().timeIntervalSince1970 {
cache.removeValue(forKey: key)
return nil
}
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else {
return nil
}
if expiration < Date().timeIntervalSince1970 {
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 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache.removeValue(forKey: key)
return nil
}
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
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 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private var timer: Timer?
init() {
timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { [weak self] _ in
self?.removeExpired()
}
}
deinit {
timer?.invalidate()
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key] {
if expiration > Date().timeIntervalSince1970 {
return value
}
}
return nil
}
private func removeExpired() {
let now = Date().timeIntervalSince1970
cache = cache.filter { $0.value.expiration > now }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private var timer: Timer?
init() {
timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { [weak self] _ in
self?.removeExpired()
}
}
deinit {
timer?.invalidate()
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key] {
if expiration > Date().timeIntervalSince1970 {
return value
}
}
return nil
}
private func removeExpired() {
let now = Date().timeIntervalSince1970
cache = cache.filter { $0.value.expiration > now }
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key], expiration > Date().timeIntervalSince1970 {
return value
} else {
cache.removeValue(forKey: key)
return nil
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key], expiration > Date().timeIntervalSince1970 {
return value
} else {
cache.removeValue(forKey: key)
return nil
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private var timer: Timer?
init() {
timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { [weak self] _ in
self?.cleanup()
}
}
deinit {
timer?.invalidate()
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache[key] = nil
return nil
}
return value
}
private func cleanup() {
cache = cache.filter { $0.value.expiration > Date().timeIntervalSince1970 }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private var timer: Timer?
init() {
timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { [weak self] _ in
self?.cleanup()
}
}
deinit {
timer?.invalidate()
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache[key] = nil
return nil
}
return value
}
private func cleanup() {
cache = cache.filter { $0.value.expiration > Date().timeIntervalSince1970 }
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache.removeValue(forKey: key)
return nil
}
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
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 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private var timer: Timer?
init() {
timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { [weak self] _ in
self?.clean()
}
}
deinit {
timer?.invalidate()
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else {
return nil
}
if expiration > Date().timeIntervalSince1970 {
return value
} else {
cache.removeValue(forKey: key)
return nil
}
}
private func clean() {
cache = cache.filter { $0.value.expiration > Date().timeIntervalSince1970 }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private var timer: Timer?
init() {
timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { [weak self] _ in
self?.clean()
}
}
deinit {
timer?.invalidate()
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let (value, expiration) = cache[key] else {
return nil
}
if expiration > Date().timeIntervalSince1970 {
return value
} else {
cache.removeValue(forKey: key)
return nil
}
}
private func clean() {
cache = cache.filter { $0.value.expiration > Date().timeIntervalSince1970 }
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key] {
if expiration > Date().timeIntervalSince1970 {
return value
} else {
cache.removeValue(forKey: key)
}
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key] {
if expiration > Date().timeIntervalSince1970 {
return value
} else {
cache.removeValue(forKey: key)
}
}
return nil
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key] {
if expiration > Date().timeIntervalSince1970 {
return value
} else {
cache.removeValue(forKey: key)
}
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key] {
if expiration > Date().timeIntervalSince1970 {
return value
} else {
cache.removeValue(forKey: key)
}
}
return nil
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ key.utf8[i % key.utf8.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ key.utf8[i % key.utf8.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ key.utf8[i % key.utf8.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ key.utf8[i % key.utf8.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```encryptedData[i] = data[i] ^ key.utf8[i % key.utf8.count] // cannot convert value of type 'Int' to expected argument type 'String.UTF8View.Index' (aka 'String.Index')decryptedData[i] = data[i] ^ key.utf8[i % key.utf8.count] // cannot convert value of type 'Int' to expected argument type 'String.UTF8View.Index' (aka 'String.Index')protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return String(data: result, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return String(data: result, encoding: .utf8)!
}
}
```let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] } // cannot convert value of type 'Data.Index' (aka 'Int') to expected argument type 'Data.Element' (aka 'UInt8')let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] } // cannot convert value of type 'Data.Index' (aka 'Int') to expected argument type 'Data.Element' (aka 'UInt8')protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return String(data: result, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return String(data: result, encoding: .utf8)!
}
}
```let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] } // cannot convert value of type 'Data.Index' (aka 'Int') to expected argument type 'Data.Element' (aka 'UInt8')let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] } // cannot convert value of type 'Data.Index' (aka 'Int') to expected argument type 'Data.Element' (aka 'UInt8')protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ key.data(using: .utf8)![i % key.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ key.data(using: .utf8)![i % key.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ key.data(using: .utf8)![i % key.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ key.data(using: .utf8)![i % key.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return String(data: result, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return String(data: result, encoding: .utf8)!
}
}
```let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] } // cannot convert value of type 'Data.Index' (aka 'Int') to expected argument type 'Data.Element' (aka 'UInt8')let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] } // cannot convert value of type 'Data.Index' (aka 'Int') to expected argument type 'Data.Element' (aka 'UInt8')protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return String(data: result, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] }
return String(data: result, encoding: .utf8)!
}
}
```let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] } // cannot convert value of type 'Data.Index' (aka 'Int') to expected argument type 'Data.Element' (aka 'UInt8')let result = data.map { $0 ^ keyData[data.startIndex.advanced(by: $0.distance(to: data.startIndex)) % keyData.count] } // cannot convert value of type 'Data.Index' (aka 'Int') to expected argument type 'Data.Element' (aka 'UInt8')protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data()
for i in 0..<data.count {
encryptedData.append(data[i] ^ keyData[i % keyData.count])
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data()
for i in 0..<data.count {
decryptedData.append(data[i] ^ keyData[i % keyData.count])
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data()
for i in 0..<data.count {
encryptedData.append(data[i] ^ keyData[i % keyData.count])
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data()
for i in 0..<data.count {
decryptedData.append(data[i] ^ keyData[i % keyData.count])
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timePassed = currentTime - lastRequestTime
if timePassed >= timeInterval {
lastRequestTime = currentTime
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timePassed = currentTime - lastRequestTime
if timePassed >= timeInterval {
lastRequestTime = currentTime
return true
}
return false
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeElapsed = currentTime - lastRequestTime
if timeElapsed >= timeInterval {
lastRequestTime = currentTime
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeElapsed = currentTime - lastRequestTime
if timeElapsed >= timeInterval {
lastRequestTime = currentTime
return true
}
return false
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeElapsed = currentTime - lastRequestTime
if timeElapsed >= timeInterval {
lastRequestTime = currentTime
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeElapsed = currentTime - lastRequestTime
if timeElapsed >= timeInterval {
lastRequestTime = currentTime
return true
}
return false
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = lastRequestTime {
if lastRequestTime.timeIntervalSinceNow < timeInterval {
return false
}
}
lastRequestTime = Date().timeIntervalSince1970
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = lastRequestTime {
if lastRequestTime.timeIntervalSinceNow < timeInterval {
return false
}
}
lastRequestTime = Date().timeIntervalSince1970
return true
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'if lastRequestTime.timeIntervalSinceNow < timeInterval { // value of type 'TimeInterval' (aka 'Double') has no member 'timeIntervalSinceNow'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeSinceLastRequest = currentTime - lastRequestTime
if timeSinceLastRequest < timeInterval {
return false
}
lastRequestTime = currentTime
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeSinceLastRequest = currentTime - lastRequestTime
if timeSinceLastRequest < timeInterval {
return false
}
lastRequestTime = currentTime
return true
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequest: Date?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequest = lastRequest {
if lastRequest.timeIntervalSinceNow < timeInterval {
return false
}
}
lastRequest = Date()
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequest: Date?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequest = lastRequest {
if lastRequest.timeIntervalSinceNow < timeInterval {
return false
}
}
lastRequest = Date()
return true
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeSinceLastRequest = currentTime - lastRequestTime
if timeSinceLastRequest >= timeInterval {
lastRequestTime = currentTime
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeSinceLastRequest = currentTime - lastRequestTime
if timeSinceLastRequest >= timeInterval {
lastRequestTime = currentTime
return true
}
return false
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeSinceLastRequest = currentTime - lastRequestTime
if timeSinceLastRequest < timeInterval {
return false
}
lastRequestTime = currentTime
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastRequestTime = Date().timeIntervalSince1970
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
let timeSinceLastRequest = currentTime - lastRequestTime
if timeSinceLastRequest < timeInterval {
return false
}
lastRequestTime = currentTime
return true
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = lastRequestTime {
if lastRequestTime.timeIntervalSinceNow < timeInterval {
return false
}
}
lastRequestTime = Date().timeIntervalSince1970
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = lastRequestTime {
if lastRequestTime.timeIntervalSinceNow < timeInterval {
return false
}
}
lastRequestTime = Date().timeIntervalSince1970
return true
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'if lastRequestTime.timeIntervalSinceNow < timeInterval { // value of type 'TimeInterval' (aka 'Double') has no member 'timeIntervalSinceNow'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = lastRequestTime {
if lastRequestTime.timeIntervalSinceNow < timeInterval {
return false
}
}
lastRequestTime = Date().timeIntervalSince1970
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: TimeInterval?
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = lastRequestTime {
if lastRequestTime.timeIntervalSinceNow < timeInterval {
return false
}
}
lastRequestTime = Date().timeIntervalSince1970
return true
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'if lastRequestTime.timeIntervalSinceNow < timeInterval { // value of type 'TimeInterval' (aka 'Double') has no member 'timeIntervalSinceNow'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int
private let lock = NSLock()
init(value: Int) {
_value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
_value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return _value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int
private let lock = NSLock()
init(value: Int) {
_value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
_value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return _value
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var lock = NSLock()
private var value: Int
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var lock = NSLock()
private var value: Int
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
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int
private let _lock = NSLock()
init(value: Int) {
_value = value
}
func increment() {
_lock.lock()
_value += 1
_lock.unlock()
}
func currentValue() -> Int {
_lock.lock()
let value = _value
_lock.unlock()
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int
private let _lock = NSLock()
init(value: Int) {
_value = value
}
func increment() {
_lock.lock()
_value += 1
_lock.unlock()
}
func currentValue() -> Int {
_lock.lock()
let value = _value
_lock.unlock()
return value
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var lock = NSLock()
private var value: Int
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var lock = NSLock()
private var value: Int
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
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int
private let lock = NSLock()
init(value: Int) {
_value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
_value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return _value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int
private let lock = NSLock()
init(value: Int) {
_value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
_value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return _value
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int
private let lock = NSLock()
init(value: Int) {
_value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
_value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return _value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var _value: Int
private let lock = NSLock()
init(value: Int) {
_value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
_value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return _value
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
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
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
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
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
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
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
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
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: Output
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: Output
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
```init(value: Output) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<T>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}
```init(value: T) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<T>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
let value: Output
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
let value: Output
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
```init(value: Output) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<Output>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}
```init(value: T) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<T>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
let value: Output
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
let value: Output
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
```init(value: Output) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<Output>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}
```init(value: T) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<T>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}
```init(value: T) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<T>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}
```init(value: T) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<T>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}
```init(value: T) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<T>'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}
```init(value: T) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'Pipeline<T>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
extension ObservableProperty: ObservablePropertyProtocol {
var value: Value {
get {
return value
}
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
extension ObservableProperty: ObservablePropertyProtocol {
var value: Value {
get {
return value
}
set {
value = newValue
observers.values.forEach { $0(newValue) }
}
}
}
```extension ObservableProperty: ObservablePropertyProtocol { // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'extension ObservableProperty: ObservablePropertyProtocol { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'var value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
var value: Value
private var observers: [UUID: (Value) -> Void] = [:]
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
var value: Value
private var observers: [UUID: (Value) -> Void] = [:]
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
```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> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
func setValue(_ value: Value) {
self.value = value
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
func setValue(_ value: Value) {
self.value = value
observers.values.forEach { $0(value) }
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
func setValue(_ value: Value) {
self.value = value
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
func setValue(_ value: Value) {
self.value = value
observers.values.forEach { $0(value) }
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
func setValue(_ value: Value) {
self.value = value
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
func setValue(_ value: Value) {
self.value = value
observers.values.forEach { $0(value) }
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
var value: Value
private var observers: [UUID: (Value) -> Void] = [:]
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
var value: Value
private var observers: [UUID: (Value) -> Void] = [:]
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
```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> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
func setValue(_ value: Value) {
self.value = value
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
observer(value)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
func setValue(_ value: Value) {
self.value = value
observers.values.forEach { $0(value) }
}
}
```observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = max(range.lowerBound, min(range.upperBound, newValue)) }
}
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}
struct Person {
@Clamped(0...100) var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = max(range.lowerBound, min(range.upperBound, newValue)) }
}
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}
struct Person {
@Clamped(0...100) var age: Int
}
let person = Person(age: 101)
print(person.age) // prints 101
person.age = 102
print(person.age) // prints 102
person.age = -1
print(person.age) // prints 0
```@Clamped(0...100) var age: Int // missing argument for parameter 'wrappedValue' in callprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Value {
get { wrappedValue }
set { wrappedValue = clamp(newValue, to: range) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return Swift.max(lowerBound, Swift.min(upperBound, value))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Value {
get { wrappedValue }
set { wrappedValue = clamp(newValue, to: range) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return Swift.max(lowerBound, Swift.min(upperBound, value))
}
}
```set { wrappedValue = clamp(newValue, to: range) } // cannot find 'clamp' in scopeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Value {
get { wrappedValue }
set { wrappedValue = clamp(newValue, to: range) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return Swift.max(lowerBound, Swift.min(upperBound, value))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Value {
get { wrappedValue }
set { wrappedValue = clamp(newValue, to: range) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return Swift.max(lowerBound, Swift.min(upperBound, value))
}
}
```set { wrappedValue = clamp(newValue, to: range) } // cannot find 'clamp' in scopeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Value {
get { wrappedValue }
set { wrappedValue = clamp(newValue, to: range) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return Swift.max(lowerBound, Swift.min(upperBound, value))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Value {
get { wrappedValue }
set { wrappedValue = clamp(newValue, to: range) }
}
}
extension ClosedRange where Bound: Comparable {
func clamp(_ value: Bound) -> Bound {
return Swift.max(lowerBound, Swift.min(upperBound, value))
}
}
```set { wrappedValue = clamp(newValue, to: range) } // cannot find 'clamp' in scopeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: ClosedRange<Value> {
get { range }
set { range = newValue }
}
var value: Value {
get { wrappedValue }
set { wrappedValue = clamp(newValue, to: range) }
}
}
extension ClampedProtocol {
func clamp(_ value: Value, to range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: ClosedRange<Value> {
get { range }
set { range = newValue }
}
var value: Value {
get { wrappedValue }
set { wrappedValue = clamp(newValue, to: range) }
}
}
extension ClampedProtocol {
func clamp(_ value: Value, to range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```set { range = newValue } // cannot assign to property: 'range' is a 'let' constantprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = min(max(newValue, range.lowerBound), range.upperBound) }
}
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = max(range.lowerBound, min(newValue, range.upperBound)) }
}
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = max(range.lowerBound, min(newValue, range.upperBound)) }
}
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = max(range.lowerBound, min(range.upperBound, newValue)) }
}
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var _wrappedValue: Value
var wrappedValue: Value {
get { _wrappedValue }
set { _wrappedValue = max(range.lowerBound, min(range.upperBound, newValue)) }
}
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self._wrappedValue = wrappedValue
self.range = range
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var wrappedValue: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
didSet {
logger?(.set, wrappedValue)
}
}
var projectedValue: Logged<Value> {
return self
}
var value: Value {
get {
logger?(.get, wrappedValue)
return wrappedValue
}
set {
wrappedValue = newValue
logger?(.set, wrappedValue)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var wrappedValue: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
didSet {
logger?(.set, wrappedValue)
}
}
var projectedValue: Logged<Value> {
return self
}
var value: Value {
get {
logger?(.get, wrappedValue)
return wrappedValue
}
set {
wrappedValue = newValue
logger?(.set, wrappedValue)
}
}
}
```struct Logged<Value> { // property wrapper type 'Logged' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'logger?(.set, wrappedValue) // ambiguous use of 'wrappedValue'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged(logger: { print("Event: \($0), Value: \($1)") })
var name: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged(logger: { print("Event: \($0), Value: \($1)") })
var name: String
}
let user = User(name: "John")
user.name = "Jane"
print(user.name)
```@Logged(logger: { print("Event: \($0), Value: \($1)") }) // missing argument for parameter 'wrappedValue' in callenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var wrappedValue: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
didSet {
logger?(.set, wrappedValue)
}
}
var projectedValue: Logged<Value> {
return self
}
var value: Value {
get {
logger?(.get, wrappedValue)
return wrappedValue
}
set {
wrappedValue = newValue
logger?(.set, wrappedValue)
}
}
}
struct Person {
@Logged var name: String
@Logged var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var wrappedValue: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
didSet {
logger?(.set, wrappedValue)
}
}
var projectedValue: Logged<Value> {
return self
}
var value: Value {
get {
logger?(.get, wrappedValue)
return wrappedValue
}
set {
wrappedValue = newValue
logger?(.set, wrappedValue)
}
}
}
struct Person {
@Logged var name: String
@Logged var age: Int
}
let person = Person(name: "John", age: 30)
person.name = "Jane"
person.age = 31
person.name // "Jane"
person.age // 31
```struct Logged<Value> { // property wrapper type 'Logged' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'logger?(.set, wrappedValue) // ambiguous use of 'wrappedValue'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var value: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.logger = logger
self.value = wrappedValue
}
var wrappedValue: Value {
get {
logger?(.get, value)
return value
}
set {
logger?(.set, newValue)
value = newValue
}
}
}
struct Person {
@Logged var name: String
@Logged var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var value: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.logger = logger
self.value = wrappedValue
}
var wrappedValue: Value {
get {
logger?(.get, value)
return value
}
set {
logger?(.set, newValue)
value = newValue
}
}
}
struct Person {
@Logged var name: String
@Logged var age: Int
}
let person = Person(name: "John", age: 30)
person.name = "Jane"
person.age = 31
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var value: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.logger = logger
self.value = wrappedValue
}
var wrappedValue: Value {
get {
logger?(.get, value)
return value
}
set {
logger?(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged var name: String
@Logged var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var value: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.logger = logger
self.value = wrappedValue
}
var wrappedValue: Value {
get {
logger?(.get, value)
return value
}
set {
logger?(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged var name: String
@Logged var age: Int
}
let user = User(name: "John", age: 30)
user.$name.logger = { event, value in
print("Property '\(event)' with value '\(value)'")
}
user.$name.wrappedValue = "Jane"
user.$age.wrappedValue = 31
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged(logger: { print("Event: \($0), Value: \($1)") })
var name: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged(logger: { print("Event: \($0), Value: \($1)") })
var name: String
}
let user = User(name: "John")
print(user.name) // Event: get, Value: John
user.name = "Jane"
print(user.name) // Event: set, Value: Jane
```@Logged(logger: { print("Event: \($0), Value: \($1)") }) // missing argument for parameter 'wrappedValue' in callenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct Person {
@Logged var name: String
@Logged var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct Person {
@Logged var name: String
@Logged var age: Int
}
let person = Person(name: "John", age: 30)
person.name = "Jane"
person.age = 31
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var wrappedValue: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.logger = logger
self.wrappedValue = wrappedValue
}
var wrappedValue: Value {
didSet {
logger?(.set, wrappedValue)
}
}
var projectedValue: Logged<Value> {
return self
}
init(wrappedValue: Value) {
self.wrappedValue = wrappedValue
}
}
struct User {
@Logged var name: String
@Logged var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var logger: ((Event, Value) -> Void)?
private var wrappedValue: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.logger = logger
self.wrappedValue = wrappedValue
}
var wrappedValue: Value {
didSet {
logger?(.set, wrappedValue)
}
}
var projectedValue: Logged<Value> {
return self
}
init(wrappedValue: Value) {
self.wrappedValue = wrappedValue
}
}
struct User {
@Logged var name: String
@Logged var age: Int
}
let user = User(name: "John", age: 30)
user.$name.logger = { event, value in
print("name \(event.rawValue): \(value)")
}
user.$age.logger = { event, value in
print("age \(event.rawValue): \(value)")
}
user.name = "Jane"
user.age = 31
```struct Logged<Value> { // property wrapper type 'Logged' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'logger?(.set, wrappedValue) // ambiguous use of 'wrappedValue'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged var name: String
@Logged var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value> {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged var name: String
@Logged var age: Int
}
let user = User(name: "John", age: 30)
user.name = "Jane"
user.age = 31
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}
```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
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
return .success(city: city, forecast: try! provider.forecast(for: city))
case .keyboardDeleteBackwards:
city.removeLast()
return .success(city: city, forecast: try! provider.forecast(for: city))
case .searchButtonPress:
return .failure(city: city)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city += String(character)
return .success(city: city, forecast: try! provider.forecast(for: city))
case .keyboardDeleteBackwards:
city.removeLast()
return .success(city: city, forecast: try! provider.forecast(for: city))
case .searchButtonPress:
return .failure(city: city)
}
}
}
``` // Fatal error: 'try!' expression unexpectedly raised an error: Solution.(unknown context at $10012fcec).(unknown context at $10012fcf4).WeatherProviderError.notFound(city: "K")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 searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
}
}
```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 searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
case .keyboardDeleteBackwards:
searchBarText.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
case .keyboardDeleteBackwards:
searchBarText.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
return nil
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
case .keyboardDeleteBackwards:
searchBarText.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
case .keyboardDeleteBackwards:
searchBarText.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
return nil
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
return nil
case .keyboardDeleteBackwards:
city.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}
```protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
}
}
```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 searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
case .keyboardDeleteBackwards:
searchBarText.removeLast()
case .searchButtonPress:
guard !searchBarText.isEmpty else { return nil }
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
case .keyboardDeleteBackwards:
searchBarText.removeLast()
case .searchButtonPress:
guard !searchBarText.isEmpty else { return nil }
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
return nil
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
return false
}
var balance: Double {
get async {
return balance
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
return false
}
var balance: Double {
get async {
return balance
}
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
return false
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
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 {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
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 {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount > balance {
return false
}
balance -= amount
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount > balance {
return false
}
balance -= amount
return true
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
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 {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
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 {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
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 {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if amount <= balance {
balance -= amount
return true
}
return false
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let wrappedValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
if condition() {
if value == nil {
value = self.wrappedValue()
}
return value!
} else {
value = nil
return wrappedValue()
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let wrappedValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
if condition() {
if value == nil {
value = self.wrappedValue()
}
return value!
} else {
value = nil
return wrappedValue()
}
}
}
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'value = self.wrappedValue() // cannot assign to property: 'self' is immutablevalue = nil // 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 condition: () -> Bool
private var value: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.value = wrappedValue()
}
var wrappedValue: Value {
if condition() {
value = wrappedValue()
}
return value!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var condition: () -> Bool
private var value: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.value = wrappedValue()
}
var wrappedValue: Value {
if condition() {
value = wrappedValue()
}
return value!
}
}
```value = wrappedValue() // cannot call value of non-function type 'Value'value = 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 value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() && value == nil {
value = wrappedValue()
}
return value!
}
set {
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() && value == nil {
value = wrappedValue()
}
return value!
}
set {
value = newValue
}
}
}
```value = wrappedValue() // cannot call value of non-function type 'Value'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
if condition() {
if value == nil {
value = wrappedValue()
}
} else {
value = nil
}
return value!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
if condition() {
if value == nil {
value = wrappedValue()
}
} else {
value = nil
}
return value!
}
}
```value = wrappedValue() // cannot call value of non-function type 'Value'value = wrappedValue() // cannot assign to property: 'self' is immutablevalue = nil // 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 value: Value?
private let condition: () -> Bool
private let wrappedValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
if condition() {
if value == nil {
value = self.wrappedValue()
}
} else {
value = nil
}
return value!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
private let wrappedValue: () -> Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
if condition() {
if value == nil {
value = self.wrappedValue()
}
} else {
value = nil
}
return value!
}
}
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'value = self.wrappedValue() // cannot assign to property: 'self' is immutablevalue = nil // 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 value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() {
if value == nil {
value = wrappedValue()
}
} else {
value = nil
}
return value!
}
set {
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() {
if value == nil {
value = wrappedValue()
}
} else {
value = nil
}
return value!
}
set {
value = newValue
}
}
}
```value = wrappedValue() // cannot call value of non-function type 'Value'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var condition: () -> Bool
private var value: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.value = wrappedValue()
}
var wrappedValue: Value {
if condition() {
value = wrappedValue()
}
return value!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var condition: () -> Bool
private var value: Value?
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.condition = condition
self.value = wrappedValue()
}
var wrappedValue: Value {
if condition() {
value = wrappedValue()
}
return value!
}
}
```value = wrappedValue() // cannot call value of non-function type 'Value'value = 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 value: Value?
private var condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() && value == nil {
value = wrappedValue()
}
return value ?? wrappedValue()
}
set {
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private var condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() && value == nil {
value = wrappedValue()
}
return value ?? wrappedValue()
}
set {
value = newValue
}
}
}
```value = wrappedValue() // cannot call value of non-function type 'Value'return value ?? wrappedValue() // cannot call value of non-function type 'Value'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
if condition() {
if value == nil {
value = wrappedValue()
}
} else {
value = nil
}
return value!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
if condition() {
if value == nil {
value = wrappedValue()
}
} else {
value = nil
}
return value!
}
}
```value = wrappedValue() // cannot call value of non-function type 'Value'value = wrappedValue() // cannot assign to property: 'self' is immutablevalue = nil // 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 value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() && value == nil {
value = wrappedValue()
}
return value!
}
set {
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value?
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = nil
self.condition = condition
}
var wrappedValue: Value {
mutating get {
if condition() && value == nil {
value = wrappedValue()
}
return value!
}
set {
value = newValue
}
}
}
```value = wrappedValue() // cannot call value of non-function type 'Value'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C>(_ f: @escaping (A) -> B, _ g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
let add10 = { x in x + 10 }
let add20 = { x in x + 20 }
let add30 = { x in x + 30 }
let add10add20 = add10 >>> add20
let add10add30 = add10 >>> add30
let result1 = add10add20(10)
let result2 = add10add30(10)
print(result1) // 40
print(result2) // 50
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C> (f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AdditionPrecedence
}
func >>> <A, B, C> (f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
let double = { (x: Int) -> Int in x * 2 }
let triple = { (x: Int) -> Int in x * 3 }
let quadruple = { (x: Int) -> Int in x * 4 }
let quadrupleDouble = quadruple >>> double
let quadrupleTriple = quadruple >>> triple
quadrupleDouble(2) // 16
quadrupleTriple(2) // 24
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var digest = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(buffer, byteCount: bytesRead)
}
}
return digest.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var digest = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(buffer, byteCount: bytesRead)
}
}
return digest.finalize()
}
```var digest = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead == 0 {
break
}
hash.combine(buffer, bytesRead: bytesRead)
}
return hash
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead == 0 {
break
}
hash.combine(buffer, bytesRead: bytesRead)
}
return hash
}
```var hash = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var digest = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
digest.update(buffer, byteCount: bytesRead)
}
return digest.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var digest = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
digest.update(buffer, byteCount: bytesRead)
}
return digest.finalize()
}
```var digest = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
guard bytesRead > 0 else { continue }
hash.combine(bytes: buffer, count: bytesRead)
}
return hash
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
guard bytesRead > 0 else { continue }
hash.combine(bytes: buffer, count: bytesRead)
}
return hash
}
```var hash = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
var read = inputStream.read(buffer, maxLength: bufferSize)
while read > 0 {
hash.combine(buffer: buffer, length: read)
read = inputStream.read(buffer, maxLength: bufferSize)
}
return hash
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
var read = inputStream.read(buffer, maxLength: bufferSize)
while read > 0 {
hash.combine(buffer: buffer, length: read)
read = inputStream.read(buffer, maxLength: bufferSize)
}
return hash
}
```var hash = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.combine(buffer, bytesRead: bytesRead)
}
}
return hash
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.combine(buffer, bytesRead: bytesRead)
}
}
return hash
}
```var hash = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var digest = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead < 0 {
break
}
digest.update(buffer, byteCount: bytesRead)
}
return digest.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var digest = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead < 0 {
break
}
digest.update(buffer, byteCount: bytesRead)
}
return digest.finalize()
}
```var digest = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.combine(bytes: buffer, count: bytesRead)
}
}
return hash
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
hash.combine(bytes: buffer, count: bytesRead)
}
}
return hash
}
```var hash = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
guard bytesRead > 0 else { break }
hash.combine(buffer: buffer, count: bytesRead)
}
return hash
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var hash = SHA256Digest()
var bytesRead = 0
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
guard bytesRead > 0 else { break }
hash.combine(buffer: buffer, count: bytesRead)
}
return hash
}
```var hash = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var digest = SHA256Digest()
var read = 0
while inputStream.hasBytesAvailable {
read = inputStream.read(buffer, maxLength: bufferSize)
digest.update(buffer, count: read)
}
return digest.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest {
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
defer { buffer.deallocate() }
var digest = SHA256Digest()
var read = 0
while inputStream.hasBytesAvailable {
read = inputStream.read(buffer, maxLength: bufferSize)
digest.update(buffer, count: read)
}
return digest.finalize()
}
```var digest = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializerstypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16.0 == 0 {
break
}
string += Character(UnicodeScalar(tuple16.0)!)
tuple16.0 += 1
}
self = string
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16.0 == 0 {
break
}
string += Character(UnicodeScalar(tuple16.0)!)
tuple16.0 += 1
}
self = string
}
}
```string += Character(UnicodeScalar(tuple16.0)!) // no exact matches in call to initializerstring += Character(UnicodeScalar(tuple16.0)!) // cannot convert value of type 'Character' to expected argument type 'String'tuple16.0 += 1 // left side of mutating operator isn't mutable: 'tuple16' is a 'let' constanttypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16.0 == 0 {
break
}
string += Character(UnicodeScalar(Int(tuple16.0)))
tuple16.0 += 1
}
self = string
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16.0 == 0 {
break
}
string += Character(UnicodeScalar(Int(tuple16.0)))
tuple16.0 += 1
}
self = string
}
}
```string += Character(UnicodeScalar(Int(tuple16.0))) // value of optional type 'UnicodeScalar?' (aka 'Optional<Unicode.Scalar>') must be unwrapped to a value of type 'UnicodeScalar' (aka 'Unicode.Scalar')string += Character(UnicodeScalar(Int(tuple16.0))) // cannot convert value of type 'Character' to expected argument type 'String'tuple16.0 += 1 // left side of mutating operator isn't mutable: 'tuple16' is a 'let' constanttypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16.0 == 0 {
break
}
string.append(Character(UnicodeScalar(Int(tuple16.0))!))
tuple16.0 = tuple16.1
}
self = string
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16.0 == 0 {
break
}
string.append(Character(UnicodeScalar(Int(tuple16.0))!))
tuple16.0 = tuple16.1
}
self = string
}
}
```tuple16.0 = tuple16.1 // cannot assign to property: 'tuple16' is a 'let' constanttypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var bytes = [Int8](repeating: 0, count: 16)
for i in 0..<16 {
bytes[i] = tuple16[i]
}
self.init(bytes: bytes, encoding: .utf8)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var bytes = [Int8](repeating: 0, count: 16)
for i in 0..<16 {
bytes[i] = tuple16[i]
}
self.init(bytes: bytes, encoding: .utf8)
}
}
```bytes[i] = tuple16[i] // cannot access element using subscript for tuple type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)'); use '.' notation insteadself.init(bytes: bytes, encoding: .utf8) // type of expression is ambiguous without a type annotationtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16[i] != 0 {
string.append(Character(UnicodeScalar(Int(tuple16[i]))))
} else {
break
}
}
self = string
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16[i] != 0 {
string.append(Character(UnicodeScalar(Int(tuple16[i]))))
} else {
break
}
}
self = string
}
}
```if tuple16[i] != 0 { // cannot access element using subscript for tuple type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)'); use '.' notation insteadstring.append(Character(UnicodeScalar(Int(tuple16[i])))) // cannot access element using subscript for tuple type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)'); use '.' notation insteadstring.append(Character(UnicodeScalar(Int(tuple16[i])))) // value of optional type 'UnicodeScalar?' (aka 'Optional<Unicode.Scalar>') must be unwrapped to a value of type 'UnicodeScalar' (aka 'Unicode.Scalar')typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
string.append(Character(UnicodeScalar(tuple16.0[i])!))
}
self = string
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
string.append(Character(UnicodeScalar(tuple16.0[i])!))
}
self = string
}
}
```string.append(Character(UnicodeScalar(tuple16.0[i])!)) // value of type 'Int8' has no subscriptstypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var bytes = [Int8](repeating: 0, count: 16)
for i in 0..<16 {
bytes[i] = tuple16[i]
}
self.init(bytes: bytes, encoding: .utf8)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var bytes = [Int8](repeating: 0, count: 16)
for i in 0..<16 {
bytes[i] = tuple16[i]
}
self.init(bytes: bytes, encoding: .utf8)
}
}
```bytes[i] = tuple16[i] // cannot access element using subscript for tuple type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)'); use '.' notation insteadself.init(bytes: bytes, encoding: .utf8) // type of expression is ambiguous without a type annotationtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16.0 == 0 {
break
}
string += Character(UnicodeScalar(Int(tuple16.0)))
tuple16.0 = tuple16.1
}
self = string
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var string = ""
for i in 0..<16 {
if tuple16.0 == 0 {
break
}
string += Character(UnicodeScalar(Int(tuple16.0)))
tuple16.0 = tuple16.1
}
self = string
}
}
```string += Character(UnicodeScalar(Int(tuple16.0))) // value of optional type 'UnicodeScalar?' (aka 'Optional<Unicode.Scalar>') must be unwrapped to a value of type 'UnicodeScalar' (aka 'Unicode.Scalar')string += Character(UnicodeScalar(Int(tuple16.0))) // cannot convert value of type 'Character' to expected argument type 'String'tuple16.0 = tuple16.1 // cannot assign to property: 'tuple16' is a 'let' constanttypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var array = [Int8](repeating: 0, count: 16)
for i in 0..<16 {
array[i] = tuple16[i]
}
self.init(bytes: array, encoding: .utf8)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var array = [Int8](repeating: 0, count: 16)
for i in 0..<16 {
array[i] = tuple16[i]
}
self.init(bytes: array, encoding: .utf8)
}
}
```array[i] = tuple16[i] // cannot access element using subscript for tuple type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)'); use '.' notation insteadself.init(bytes: array, encoding: .utf8) // type of expression is ambiguous without a type annotationtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var bytes = [Int8](repeating: 0, count: 16)
for i in 0..<16 {
bytes[i] = tuple16[i]
}
self.init(bytes: bytes, encoding: .utf8)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
var bytes = [Int8](repeating: 0, count: 16)
for i in 0..<16 {
bytes[i] = tuple16[i]
}
self.init(bytes: bytes, encoding: .utf8)
}
}
```bytes[i] = tuple16[i] // cannot access element using subscript for tuple type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)'); use '.' notation insteadself.init(bytes: bytes, encoding: .utf8) // type of expression is ambiguous without a type annotationimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { return false }
guard let lhsData = CVPixelBufferGetBaseAddress(lhs), let rhsData = CVPixelBufferGetBaseAddress(rhs) else { return false }
return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { return false }
guard let lhsData = CVPixelBufferGetBaseAddress(lhs), let rhsData = CVPixelBufferGetBaseAddress(rhs) else { return false }
return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0
}
```guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { return false } // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { return false } // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { return false } // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { return false } // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { return false } // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { return false } // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // cannot convert value of type 'Duration' to expected argument type 'Int'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // 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.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress
}
```return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)
let rhsData = CVPixelBufferGetBaseAddress(rhs)
return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)
let rhsData = CVPixelBufferGetBaseAddress(rhs)
return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0
}
```guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // cannot convert value of type 'Duration' to expected argument type 'Int'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)
let rhsData = CVPixelBufferGetBaseAddress(rhs)
guard lhsData != nil, rhsData != nil else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let lhsDataLength = CVPixelBufferGetDataSize(lhs)
let rhsDataLength = CVPixelBufferGetDataSize(rhs)
guard lhsDataLength == rhsDataLength else {
return false
}
let lhsDataPtr = UnsafeMutableRawPointer(mutating: lhsData)
let rhsDataPtr = UnsafeMutableRawPointer(mutating: rhsData)
return memcmp(lhsDataPtr, rhsDataPtr, lhsDataLength) == 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)
let rhsData = CVPixelBufferGetBaseAddress(rhs)
guard lhsData != nil, rhsData != nil else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let lhsDataLength = CVPixelBufferGetDataSize(lhs)
let rhsDataLength = CVPixelBufferGetDataSize(rhs)
guard lhsDataLength == rhsDataLength else {
return false
}
let lhsDataPtr = UnsafeMutableRawPointer(mutating: lhsData)
let rhsDataPtr = UnsafeMutableRawPointer(mutating: rhsData)
return memcmp(lhsDataPtr, rhsDataPtr, lhsDataLength) == 0
}
```guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data
}
```return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'data'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'data'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRowAlignment'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRowAlignment'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress
}
```return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.baseAddress == rhs.baseAddress // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)
let rhsData = CVPixelBufferGetBaseAddress(rhs)
return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)
let rhsData = CVPixelBufferGetBaseAddress(rhs)
return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0
}
```guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // cannot convert value of type 'Duration' to expected argument type 'Int'return memcmp(lhsData, rhsData, lhs.bytesPerRow * lhs.height) == 0 // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else {
return false
}
let lhsData = UnsafeMutablePointer<UInt8>(mutating: lhs.baseAddress)
let rhsData = UnsafeMutablePointer<UInt8>(mutating: rhs.baseAddress)
for i in 0..<lhs.bytesPerRow * lhs.height {
if lhsData[i] != rhsData[i] {
return false
}
}
return true
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else {
return false
}
let lhsData = UnsafeMutablePointer<UInt8>(mutating: lhs.baseAddress)
let rhsData = UnsafeMutablePointer<UInt8>(mutating: rhs.baseAddress)
for i in 0..<lhs.bytesPerRow * lhs.height {
if lhsData[i] != rhsData[i] {
return false
}
}
return true
}
```guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'guard lhs.width == rhs.width, lhs.height == rhs.height, lhs.pixelFormatType == rhs.pixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'let lhsData = UnsafeMutablePointer<UInt8>(mutating: lhs.baseAddress) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'let rhsData = UnsafeMutablePointer<UInt8>(mutating: rhs.baseAddress) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'for i in 0..<lhs.bytesPerRow * lhs.height { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'for i in 0..<lhs.bytesPerRow * lhs.height { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'for i in 0..<lhs.bytesPerRow * lhs.height { // cannot convert value of type 'Duration' to expected argument type 'Int'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data
}
```return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'data'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'data'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRowAlignment'return lhs.width == rhs.width && lhs.height == rhs.height && lhs.pixelFormatType == rhs.pixelFormatType && lhs.bytesPerRowAlignment == rhs.bytesPerRowAlignment && lhs.bytesPerRow == rhs.bytesPerRow && lhs.data == rhs.data // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRowAlignment'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.width != rhs.width || lhs.height != rhs.height || lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
let lhsData = UnsafeMutablePointer<UInt8>(OpaquePointer(lhs.baseAddress!))
let rhsData = UnsafeMutablePointer<UInt8>(OpaquePointer(rhs.baseAddress!))
for i in 0..<lhs.bytesPerRow * lhs.height {
if lhsData[i] != rhsData[i] {
return false
}
}
return true
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.width != rhs.width || lhs.height != rhs.height || lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
let lhsData = UnsafeMutablePointer<UInt8>(OpaquePointer(lhs.baseAddress!))
let rhsData = UnsafeMutablePointer<UInt8>(OpaquePointer(rhs.baseAddress!))
for i in 0..<lhs.bytesPerRow * lhs.height {
if lhsData[i] != rhsData[i] {
return false
}
}
return true
}
```if lhs.width != rhs.width || lhs.height != rhs.height || lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'if lhs.width != rhs.width || lhs.height != rhs.height || lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'if lhs.width != rhs.width || lhs.height != rhs.height || lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'if lhs.width != rhs.width || lhs.height != rhs.height || lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.width != rhs.width || lhs.height != rhs.height || lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'if lhs.width != rhs.width || lhs.height != rhs.height || lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'let lhsData = UnsafeMutablePointer<UInt8>(OpaquePointer(lhs.baseAddress!)) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'let rhsData = UnsafeMutablePointer<UInt8>(OpaquePointer(rhs.baseAddress!)) // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'baseAddress'for i in 0..<lhs.bytesPerRow * lhs.height { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'bytesPerRow'for i in 0..<lhs.bytesPerRow * lhs.height { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'for i in 0..<lhs.bytesPerRow * lhs.height { // cannot convert value of type 'Duration' to expected argument type 'Int'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
let source = UnsafeMutablePointer<PrivateItem>(mutating: items)
let destination = UnsafeMutablePointer<PublicItem>(mutating: result)
for i in 0..<count {
destination.advanced(by: i).initialize(to: source.advanced(by: i).pointee)
}
return UnsafeBufferPointer(start: result, count: count).map { $0 }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
let source = UnsafeMutablePointer<PrivateItem>(mutating: items)
let destination = UnsafeMutablePointer<PublicItem>(mutating: result)
for i in 0..<count {
destination.advanced(by: i).initialize(to: source.advanced(by: i).pointee)
}
return UnsafeBufferPointer(start: result, count: count).map { $0 }
}
```let source = UnsafeMutablePointer<PrivateItem>(mutating: items) // initialization of 'UnsafeMutablePointer<PrivateItem>' results in a dangling pointerdestination.advanced(by: i).initialize(to: source.advanced(by: i).pointee) // cannot convert value of type 'PrivateItem' to expected argument type 'PublicItem'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let buffer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: count)
buffer.initialize(from: items, count: count)
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
for i in 0..<count {
result[i] = PublicItem(value: buffer[i].value)
}
buffer.deinitialize(count: count)
buffer.deallocate(capacity: count)
return UnsafeBufferPointer(start: result, count: count).map { $0 }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let buffer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: count)
buffer.initialize(from: items, count: count)
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
for i in 0..<count {
result[i] = PublicItem(value: buffer[i].value)
}
buffer.deinitialize(count: count)
buffer.deallocate(capacity: count)
return UnsafeBufferPointer(start: result, count: count).map { $0 }
}
```result[i] = PublicItem(value: buffer[i].value) // 'value' is inaccessible due to 'private' protection levelbuffer.deallocate(capacity: count) // 'deallocate(capacity:)' is unavailable: Swift currently only supports freeing entire heap blocks, use deallocate() insteadstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items)
for i in 0..<count {
result[i] = PublicItem(value: itemsPtr[i].value)
}
return UnsafeBufferPointer(start: result, count: count).map { $0 }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items)
for i in 0..<count {
result[i] = PublicItem(value: itemsPtr[i].value)
}
return UnsafeBufferPointer(start: result, count: count).map { $0 }
}
```let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items) // initialization of 'UnsafeMutablePointer<PrivateItem>' results in a dangling pointerresult[i] = PublicItem(value: itemsPtr[i].value) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items)
for i in 0..<count {
result[i] = PublicItem(value: itemsPtr[i].value)
}
return UnsafeBufferPointer(start: result, count: count).map { $0 }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items)
for i in 0..<count {
result[i] = PublicItem(value: itemsPtr[i].value)
}
return UnsafeBufferPointer(start: result, count: count).map { $0 }
}
```let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items) // initialization of 'UnsafeMutablePointer<PrivateItem>' results in a dangling pointerresult[i] = PublicItem(value: itemsPtr[i].value) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let buffer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: count)
buffer.initialize(from: items, count: count)
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
result.initialize(to: PublicItem(value: 0), count: count)
memcpy(result, buffer, MemoryLayout<PublicItem>.stride * count)
buffer.deinitialize(count: count)
buffer.deallocate(capacity: count)
return UnsafeMutableBufferPointer(start: result, count: count).move()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let buffer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: count)
buffer.initialize(from: items, count: count)
let result = UnsafeMutablePointer<PublicItem>.allocate(capacity: count)
result.initialize(to: PublicItem(value: 0), count: count)
memcpy(result, buffer, MemoryLayout<PublicItem>.stride * count)
buffer.deinitialize(count: count)
buffer.deallocate(capacity: count)
return UnsafeMutableBufferPointer(start: result, count: count).move()
}
```result.initialize(to: PublicItem(value: 0), count: count) // 'initialize(to:count:)' has been renamed to 'initialize(repeating:count:)'buffer.deallocate(capacity: count) // 'deallocate(capacity:)' is unavailable: Swift currently only supports freeing entire heap blocks, use deallocate() insteadreturn UnsafeMutableBufferPointer(start: result, count: count).move() // value of type 'UnsafeMutableBufferPointer<PublicItem>' has no member 'move'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items)
let itemsPtr2 = UnsafeMutablePointer<PublicItem>(mutating: itemsPtr)
for i in 0..<count {
itemsPtr2[i].value = itemsPtr[i].value
}
return itemsPtr2.map { PublicItem(value: $0.value) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let count = items.count
let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items)
let itemsPtr2 = UnsafeMutablePointer<PublicItem>(mutating: itemsPtr)
for i in 0..<count {
itemsPtr2[i].value = itemsPtr[i].value
}
return itemsPtr2.map { PublicItem(value: $0.value) }
}
```let itemsPtr = UnsafeMutablePointer<PrivateItem>(mutating: items) // initialization of 'UnsafeMutablePointer<PrivateItem>' results in a dangling pointerlet itemsPtr2 = UnsafeMutablePointer<PublicItem>(mutating: itemsPtr) // cannot convert value of type 'UnsafeMutablePointer<PrivateItem>' to expected argument type 'UnsafePointer<PublicItem>'itemsPtr2[i].value = itemsPtr[i].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 withUnsafePointer(to: items) {
$0.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
Array(UnsafeBufferPointer(start: $0, count: items.count))
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return withUnsafePointer(to: items) {
$0.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
Array(UnsafeBufferPointer(start: $0, count: items.count))
}
}
}
``` // XCTAssertEqual failed: ([0, 1, 2]) is not equal to ([105553122558592, 6133853536, 105553122558592])struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return withUnsafePointer(to: items) {
$0.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
Array(UnsafeBufferPointer(start: $0, count: items.count))
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return withUnsafePointer(to: items) {
$0.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
Array(UnsafeBufferPointer(start: $0, count: items.count))
}
}
}
``` // XCTAssertEqual failed: ([0, 1, 2]) is not equal to ([105553178247360, 6130527584, 105553178247360])struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return withUnsafePointer(to: items) {
$0.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
Array(UnsafeBufferPointer(start: $0, count: items.count))
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return withUnsafePointer(to: items) {
$0.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
Array(UnsafeBufferPointer(start: $0, count: items.count))
}
}
}
``` // XCTAssertEqual failed: ([0, 1, 2]) is not equal to ([105553124983232, 6169963872, 105553124983232])struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return withUnsafePointer(to: items) {
$0.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
Array(UnsafeBufferPointer(start: $0, count: items.count))
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return withUnsafePointer(to: items) {
$0.withMemoryRebound(to: PublicItem.self, capacity: items.count) {
Array(UnsafeBufferPointer(start: $0, count: items.count))
}
}
}
``` // XCTAssertEqual failed: ([0, 1, 2]) is not equal to ([105553123033536, 6136966496, 105553123033536])enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let minCount = min(lhsCount, rhsCount)
for i in 0..<minCount {
let lhsComponent = lhsComponents[i]
let rhsComponent = rhsComponents[i]
if lhsComponent != rhsComponent {
let lhsIsNumeric = lhsComponent.range(of: "^[0-9]*$", options: .regularExpression) != nil
let rhsIsNumeric = rhsComponent.range(of: "^[0-9]*$", options: .regularExpression) != nil
if lhsIsNumeric && rhsIsNumeric {
let lhsInt = Int(lhsComponent)
let rhsInt = Int(rhsComponent)
if lhsInt == rhsInt {
continue
}
return lhsInt! < rhsInt! ? .orderedAscending : .orderedDescending
} else {
let lhsAlpha = lhsComponent.range(of: "^[a-zA-Z]*$", options: .regularExpression) != nil
let rhsAlpha = rhsComponent.range(of: "^[a-zA-Z]*$", options: .regularExpression) != nil
if lhsAlpha && rhsAlpha {
let lhsIndex = alphaOrder.index(of: lhsComponent)!
let rhsIndex = alphaOrder.index(of: rhsComponent)!
if lhsIndex == rhsIndex {
continue
}
return lhsIndex < rhsIndex ? .orderedAscending : .orderedDescending
}
}
return lhsComponent < rhsComponent ? .orderedAscending : .orderedDescending
}
}
if lhsCount == rhsCount {
return .orderedSame
}
return lhsCount < rhsCount ? .orderedAscending : .orderedDescending
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let minCount = min(lhsCount, rhsCount)
for i in 0..<minCount {
let lhsComponent = lhsComponents[i]
let rhsComponent = rhsComponents[i]
if lhsComponent != rhsComponent {
let lhsIsNumeric = lhsComponent.range(of: "^[0-9]*$", options: .regularExpression) != nil
let rhsIsNumeric = rhsComponent.range(of: "^[0-9]*$", options: .regularExpression) != nil
if lhsIsNumeric && rhsIsNumeric {
let lhsInt = Int(lhsComponent)
let rhsInt = Int(rhsComponent)
if lhsInt == rhsInt {
continue
}
return lhsInt! < rhsInt! ? .orderedAscending : .orderedDescending
} else {
let lhsAlpha = lhsComponent.range(of: "^[a-zA-Z]*$", options: .regularExpression) != nil
let rhsAlpha = rhsComponent.range(of: "^[a-zA-Z]*$", options: .regularExpression) != nil
if lhsAlpha && rhsAlpha {
let lhsIndex = alphaOrder.index(of: lhsComponent)!
let rhsIndex = alphaOrder.index(of: rhsComponent)!
if lhsIndex == rhsIndex {
continue
}
return lhsIndex < rhsIndex ? .orderedAscending : .orderedDescending
}
}
return lhsComponent < rhsComponent ? .orderedAscending : .orderedDescending
}
}
if lhsCount == rhsCount {
return .orderedSame
}
return lhsCount < rhsCount ? .orderedAscending : .orderedDescending
}
let alphaOrder = ["alpha", "beta", "gamma", "delta", "epsilon", "zeta", "eta", "theta", "iota", "kappa", "lambda", "mu", "nu", "xi", "omicron", "pi", "rho", "sigma", "tau", "upsilon", "phi", "chi", "psi", "omega"]
```let lhsIndex = alphaOrder.index(of: lhsComponent)! // cannot find 'alphaOrder' in scopelet rhsIndex = alphaOrder.index(of: rhsComponent)! // cannot find 'alphaOrder' in scopeenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let maxCount = max(lhsCount, rhsCount)
var result = ComparisonResult.orderedSame
for index in 0..<maxCount {
let lhsComponent = index < lhsCount ? lhsComponents[index] : "0"
let rhsComponent = index < rhsCount ? rhsComponents[index] : "0"
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
result = .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
result = .orderedDescending
} else {
result = lhsComponent.compare(rhsComponent, options: .numeric)
}
break
}
}
return result
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let maxCount = max(lhsCount, rhsCount)
var result = ComparisonResult.orderedSame
for index in 0..<maxCount {
let lhsComponent = index < lhsCount ? lhsComponents[index] : "0"
let rhsComponent = index < rhsCount ? rhsComponents[index] : "0"
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
result = .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
result = .orderedDescending
} else {
result = lhsComponent.compare(rhsComponent, options: .numeric)
}
break
}
}
return result
}
```result = lhsComponent.compare(rhsComponent, options: .numeric) // cannot assign value of type 'Foundation.ComparisonResult' to type 'Solution.ComparisonResult'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let minCount = min(lhsCount, rhsCount)
for index in 0..<minCount {
let lhsComponent = lhsComponents[index]
let rhsComponent = rhsComponents[index]
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else {
let lhsInt = Int(lhsComponent)
let rhsInt = Int(rhsComponent)
if lhsInt == nil || rhsInt == nil {
return .orderedSame
} else {
return lhsInt! < rhsInt! ? .orderedAscending : .orderedDescending
}
}
}
}
if lhsCount == rhsCount {
return .orderedSame
} else {
return lhsCount < rhsCount ? .orderedAscending : .orderedDescending
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let minCount = min(lhsCount, rhsCount)
for index in 0..<minCount {
let lhsComponent = lhsComponents[index]
let rhsComponent = rhsComponents[index]
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else {
let lhsInt = Int(lhsComponent)
let rhsInt = Int(rhsComponent)
if lhsInt == nil || rhsInt == nil {
return .orderedSame
} else {
return lhsInt! < rhsInt! ? .orderedAscending : .orderedDescending
}
}
}
}
if lhsCount == rhsCount {
return .orderedSame
} else {
return lhsCount < rhsCount ? .orderedAscending : .orderedDescending
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsVersion = Int(lhsComponent) ?? 0
let rhsVersion = Int(rhsComponent) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsVersion = Int(lhsComponent) ?? 0
let rhsVersion = Int(rhsComponent) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
}
if lhsComponents.count < rhsComponents.count {
return .orderedAscending
} else if lhsComponents.count > rhsComponents.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for i in 0..<max(lhsComponents.count, rhsComponents.count) {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else if lhsComponent.hasPrefix("alpha") {
return .orderedAscending
} else if rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else if lhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if rhsComponent.hasPrefix("beta") {
return .orderedDescending
} else {
let lhsNumber = Int(lhsComponent) ?? 0
let rhsNumber = Int(rhsComponent) ?? 0
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
}
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for i in 0..<max(lhsComponents.count, rhsComponents.count) {
let lhsComponent = i < lhsComponents.count ? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count ? rhsComponents[i] : "0"
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else if lhsComponent.hasPrefix("alpha") {
return .orderedAscending
} else if rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else if lhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if rhsComponent.hasPrefix("beta") {
return .orderedDescending
} else {
let lhsNumber = Int(lhsComponent) ?? 0
let rhsNumber = Int(rhsComponent) ?? 0
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
}
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsInt = Int(lhsComponent)
let rhsInt = Int(rhsComponent)
if lhsInt == rhsInt {
continue
} else if lhsInt == nil {
return .orderedAscending
} else if rhsInt == nil {
return .orderedDescending
} else {
return lhsInt! < rhsInt! ? .orderedAscending : .orderedDescending
}
}
return lhsComponents.count < rhsComponents.count ? .orderedAscending : .orderedDescending
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsInt = Int(lhsComponent)
let rhsInt = Int(rhsComponent)
if lhsInt == rhsInt {
continue
} else if lhsInt == nil {
return .orderedAscending
} else if rhsInt == nil {
return .orderedDescending
} else {
return lhsInt! < rhsInt! ? .orderedAscending : .orderedDescending
}
}
return lhsComponents.count < rhsComponents.count ? .orderedAscending : .orderedDescending
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
var lhsIndex = 0
var rhsIndex = 0
while lhsIndex < lhsComponents.count && rhsIndex < rhsComponents.count {
let lhsComponent = lhsComponents[lhsIndex]
let rhsComponent = rhsComponents[rhsIndex]
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else {
let lhsVersion = Int(lhsComponent.replacingOccurrences(of: "alpha", with: "").replacingOccurrences(of: "beta", with: "")) ?? 0
let rhsVersion = Int(rhsComponent.replacingOccurrences(of: "alpha", with: "").replacingOccurrences(of: "beta", with: "")) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
}
}
lhsIndex += 1
rhsIndex += 1
}
if lhsIndex < lhsComponents.count {
return .orderedAscending
} else if rhsIndex < rhsComponents.count {
return .orderedDescending
} else {
return .orderedSame
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
var lhsIndex = 0
var rhsIndex = 0
while lhsIndex < lhsComponents.count && rhsIndex < rhsComponents.count {
let lhsComponent = lhsComponents[lhsIndex]
let rhsComponent = rhsComponents[rhsIndex]
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else {
let lhsVersion = Int(lhsComponent.replacingOccurrences(of: "alpha", with: "").replacingOccurrences(of: "beta", with: "")) ?? 0
let rhsVersion = Int(rhsComponent.replacingOccurrences(of: "alpha", with: "").replacingOccurrences(of: "beta", with: "")) ?? 0
if lhsVersion < rhsVersion {
return .orderedAscending
} else if lhsVersion > rhsVersion {
return .orderedDescending
}
}
}
lhsIndex += 1
rhsIndex += 1
}
if lhsIndex < lhsComponents.count {
return .orderedAscending
} else if rhsIndex < rhsComponents.count {
return .orderedDescending
} else {
return .orderedSame
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let minCount = min(lhsCount, rhsCount)
for i in 0..<minCount {
let lhsComponent = lhsComponents[i]
let rhsComponent = rhsComponents[i]
if lhsComponent != rhsComponent {
let lhsIsNumeric = lhsComponent.range(of: "[0-9]", options: .regularExpression) != nil
let rhsIsNumeric = rhsComponent.range(of: "[0-9]", options: .regularExpression) != nil
if lhsIsNumeric && rhsIsNumeric {
let lhsNumber = Int(lhsComponent)
let rhsNumber = Int(rhsComponent)
if lhsNumber == rhsNumber {
continue
}
return lhsNumber! < rhsNumber! ? .orderedAscending : .orderedDescending
} else {
let lhsIsAlpha = lhsComponent.range(of: "[a-zA-Z]", options: .regularExpression) != nil
let rhsIsAlpha = rhsComponent.range(of: "[a-zA-Z]", options: .regularExpression) != nil
if lhsIsAlpha && rhsIsAlpha {
let lhsAlpha = lhsComponent.lowercased()
let rhsAlpha = rhsComponent.lowercased()
if lhsAlpha == rhsAlpha {
continue
}
return lhsAlpha < rhsAlpha ? .orderedAscending : .orderedDescending
} else {
return .orderedSame
}
}
}
}
if lhsCount == rhsCount {
return .orderedSame
}
return lhsCount < rhsCount ? .orderedAscending : .orderedDescending
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let minCount = min(lhsCount, rhsCount)
for i in 0..<minCount {
let lhsComponent = lhsComponents[i]
let rhsComponent = rhsComponents[i]
if lhsComponent != rhsComponent {
let lhsIsNumeric = lhsComponent.range(of: "[0-9]", options: .regularExpression) != nil
let rhsIsNumeric = rhsComponent.range(of: "[0-9]", options: .regularExpression) != nil
if lhsIsNumeric && rhsIsNumeric {
let lhsNumber = Int(lhsComponent)
let rhsNumber = Int(rhsComponent)
if lhsNumber == rhsNumber {
continue
}
return lhsNumber! < rhsNumber! ? .orderedAscending : .orderedDescending
} else {
let lhsIsAlpha = lhsComponent.range(of: "[a-zA-Z]", options: .regularExpression) != nil
let rhsIsAlpha = rhsComponent.range(of: "[a-zA-Z]", options: .regularExpression) != nil
if lhsIsAlpha && rhsIsAlpha {
let lhsAlpha = lhsComponent.lowercased()
let rhsAlpha = rhsComponent.lowercased()
if lhsAlpha == rhsAlpha {
continue
}
return lhsAlpha < rhsAlpha ? .orderedAscending : .orderedDescending
} else {
return .orderedSame
}
}
}
}
if lhsCount == rhsCount {
return .orderedSame
}
return lhsCount < rhsCount ? .orderedAscending : .orderedDescending
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let minCount = min(lhsCount, rhsCount)
for index in 0..<minCount {
let lhsComponent = lhsComponents[index]
let rhsComponent = rhsComponents[index]
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else {
let lhsNumber = Int(lhsComponent) ?? 0
let rhsNumber = Int(rhsComponent) ?? 0
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
}
}
if lhsCount == rhsCount {
return .orderedSame
} else if lhsCount < rhsCount {
return .orderedAscending
} else {
return .orderedDescending
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let lhsCount = lhsComponents.count
let rhsCount = rhsComponents.count
let minCount = min(lhsCount, rhsCount)
for index in 0..<minCount {
let lhsComponent = lhsComponents[index]
let rhsComponent = rhsComponents[index]
if lhsComponent != rhsComponent {
if lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("beta") {
return .orderedAscending
} else if lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("alpha") {
return .orderedDescending
} else {
let lhsNumber = Int(lhsComponent) ?? 0
let rhsNumber = Int(rhsComponent) ?? 0
if lhsNumber < rhsNumber {
return .orderedAscending
} else if lhsNumber > rhsNumber {
return .orderedDescending
}
}
}
}
if lhsCount == rhsCount {
return .orderedSame
} else if lhsCount < rhsCount {
return .orderedAscending
} else {
return .orderedDescending
}
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsInt = Int(lhsComponent)
let rhsInt = Int(rhsComponent)
if lhsInt == rhsInt {
continue
} else if lhsInt == nil {
return .orderedAscending
} else if rhsInt == nil {
return .orderedDescending
} else {
return lhsInt! < rhsInt! ? .orderedAscending : .orderedDescending
}
}
if lhsComponents.count == rhsComponents.count {
return .orderedSame
} else {
return lhsComponents.count < rhsComponents.count ? .orderedAscending : .orderedDescending
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
for (lhsComponent, rhsComponent) in zip(lhsComponents, rhsComponents) {
let lhsInt = Int(lhsComponent)
let rhsInt = Int(rhsComponent)
if lhsInt == rhsInt {
continue
} else if lhsInt == nil {
return .orderedAscending
} else if rhsInt == nil {
return .orderedDescending
} else {
return lhsInt! < rhsInt! ? .orderedAscending : .orderedDescending
}
}
if lhsComponents.count == rhsComponents.count {
return .orderedSame
} else {
return lhsComponents.count < rhsComponents.count ? .orderedAscending : .orderedDescending
}
}
``` // XCTAssertTrue failed