Metadata
| Key | Value |
|---|---|
| engine | transformers |
| prompt | instruct |
| temp | 0.2 |
| top_p | 0.95 |
| max_new_tokens | 1024 |
| n_completions | 10 |
Solutions
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### 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 jsonData = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: jsonData, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}### 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 html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attrString = ""
for (key, value) in attributes {
attrString += " \(key)=\"\(value)\""
}
let childNodes = children.map(generate).joined()
return "<\(name)\(attrString)>\(childNodes)</\(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):
var attrString = ""
for (key, value) in attributes {
attrString += " \(key)=\"\(value)\""
}
let childNodes = children.map(generate).joined()
return "<\(name)\(attrString)>\(childNodes)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attrString = ""
for (key, value) in attributes {
attrString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attrString)>\(childContent)</\(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):
var attrString = ""
for (key, value) in attributes {
attrString += " \(key)=\"\(value)\""
}
let childContent = children.map(generate).joined()
return "<\(name)\(attrString)>\(childContent)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}### 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 html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}### 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 html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}### 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 html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}### 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 html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var attrString = ""
for (key, value) in attributes {
attrString += " \(key)=\"\(value)\""
}
let childNodes = children.map(generate).joined()
return "<\(name)\(attrString)>\(childNodes)</\(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):
var attrString = ""
for (key, value) in attributes {
attrString += " \(key)=\"\(value)\""
}
let childNodes = children.map(generate).joined()
return "<\(name)\(attrString)>\(childNodes)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}### 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 html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}### 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 html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let operator = operators.last, operator != "(" {
applyOperator(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)) {
applyOperator(&stack, &operators)
}
operators.append(Character(token))
}
}
while !operators.isEmpty {
applyOperator(&stack, &operators)
}
return stack.popLast() ?? 0
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperator(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast(), let operatorChar = operators.popLast() else {
return
}
switch operatorChar {
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
default:
break
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let operator = operators.last, operator != "(" {
applyOperator(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)) {
applyOperator(&stack, &operators)
}
operators.append(Character(token))
}
}
while !operators.isEmpty {
applyOperator(&stack, &operators)
}
return stack.popLast() ?? 0
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperator(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast(), let operatorChar = operators.popLast() else {
return
}
switch operatorChar {
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
default:
break
}
}
```while let operator = operators.last, operator != "(" { // expected '{' after 'while' conditionwhile let operator = operators.last, operator != "(" { // expected patternwhile let operator = operators.last, operator != "(" { // unwrap condition requires a valid identifierenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) {
applyOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
return stack.first ?? 0
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
guard let operatorChar = operators.popLast() else { return }
switch operatorChar {
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
default:
break
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) {
applyOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
return stack.first ?? 0
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
guard let operatorChar = operators.popLast() else { return }
switch operatorChar {
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
default:
break
}
}
```while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) { // cannot force unwrap value of non-optional type 'Character'operators.append(Character(token)!) // cannot force unwrap value of non-optional type 'Character'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if let _ = Int(String(char)) {
currentToken += String(char)
} else {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) {
applyOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
return stack.first ?? 0
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
guard let operatorChar = operators.popLast() else { return }
switch operatorChar {
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
default:
break
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if let _ = Int(String(char)) {
currentToken += String(char)
} else {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) {
applyOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
return stack.first ?? 0
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
guard let operatorChar = operators.popLast() else { return }
switch operatorChar {
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
default:
break
}
}
```while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) { // cannot force unwrap value of non-optional type 'Character'operators.append(Character(token)!) // cannot force unwrap value of non-optional type 'Character'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) {
applyOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while let lastOperator = operators.last {
applyOperation(&stack, &operators)
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
let operatorChar = operators.popLast()!
switch operatorChar {
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
default:
break
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) {
applyOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while let lastOperator = operators.last {
applyOperation(&stack, &operators)
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
let operatorChar = operators.popLast()!
switch operatorChar {
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
default:
break
}
}
```while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) { // cannot force unwrap value of non-optional type 'Character'operators.append(Character(token)!) // cannot force unwrap value of non-optional type 'Character'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
switch token {
case "(":
operators.append(token)
case ")":
while let lastOperator = operators.last, lastOperator != "(" {
if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.removeLast() // Remove the '('
case let number:
if let num = Double(number) {
stack.append(num)
} else {
throw CalculateError.invalidInput
}
case let operatorToken:
while let lastOperator = operators.last, precedence(operatorToken) <= precedence(lastOperator) {
if let result = applyOperation(lastOperator!, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.append(operatorToken)
default:
throw CalculateError.invalidInput
}
}
while let lastOperator = operators.last {
if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
return stack.popLast() ?? 0
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber: String = ""
for char in string {
if char.isNumber || char == "." {
currentNumber += String(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ operatorChar: Character, _ b: Double, _ a: Double) -> Double? {
switch operatorChar {
case "*":
return a * b
case "/":
return b != 0 ? a / b : nil
case "+":
return a + b
case "-":
return a - b
default:
return nil
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
switch token {
case "(":
operators.append(token)
case ")":
while let lastOperator = operators.last, lastOperator != "(" {
if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.removeLast() // Remove the '('
case let number:
if let num = Double(number) {
stack.append(num)
} else {
throw CalculateError.invalidInput
}
case let operatorToken:
while let lastOperator = operators.last, precedence(operatorToken) <= precedence(lastOperator) {
if let result = applyOperation(lastOperator!, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.append(operatorToken)
default:
throw CalculateError.invalidInput
}
}
while let lastOperator = operators.last {
if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
return stack.popLast() ?? 0
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentNumber: String = ""
for char in string {
if char.isNumber || char == "." {
currentNumber += String(char)
} else {
if !currentNumber.isEmpty {
tokens.append(currentNumber)
currentNumber = ""
}
tokens.append(String(char))
}
}
if !currentNumber.isEmpty {
tokens.append(currentNumber)
}
return tokens
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ operatorChar: Character, _ b: Double, _ a: Double) -> Double? {
switch operatorChar {
case "*":
return a * b
case "/":
return b != 0 ? a / b : nil
case "+":
return a + b
case "-":
return a - b
default:
return nil
}
}
```operators.append(token) // no exact matches in call to instance method 'append'if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) { // value of optional type 'Double?' must be unwrapped to a value of type 'Double'if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) { // value of optional type 'Double?' must be unwrapped to a value of type 'Double'case let operatorToken: // case is already handled by previous patterns; consider removing itwhile let lastOperator = operators.last, precedence(operatorToken) <= precedence(lastOperator) { // cannot convert value of type 'String' to expected argument type 'Character'if let result = applyOperation(lastOperator!, stack.popLast(), stack.popLast()) { // cannot force unwrap value of non-optional type 'Character'if let result = applyOperation(lastOperator!, stack.popLast(), stack.popLast()) { // value of optional type 'Double?' must be unwrapped to a value of type 'Double'if let result = applyOperation(lastOperator!, stack.popLast(), stack.popLast()) { // value of optional type 'Double?' must be unwrapped to a value of type 'Double'operators.append(operatorToken) // no exact matches in call to instance method 'append'if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) { // value of optional type 'Double?' must be unwrapped to a value of type 'Double'if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) { // value of optional type 'Double?' must be unwrapped to a value of type 'Double'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if let _ = Int(String(char)) {
currentToken += String(char)
} else {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let operator = operators.last, operator != "(" {
performOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let operator = operators.last, precedence(operator) >= precedence(Character(token)!) {
performOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while let operator = operators.last {
performOperation(&stack, &operators)
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func performOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
guard let operatorChar = operators.popLast() else { return }
switch operatorChar {
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
default:
break
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if let _ = Int(String(char)) {
currentToken += String(char)
} else {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let operator = operators.last, operator != "(" {
performOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let operator = operators.last, precedence(operator) >= precedence(Character(token)!) {
performOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while let operator = operators.last {
performOperation(&stack, &operators)
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func performOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast() else { return }
guard let operatorChar = operators.popLast() else { return }
switch operatorChar {
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
default:
break
}
}
```while let operator = operators.last, operator != "(" { // expected patternwhile let operator = operators.last, operator != "(" { // expected '{' after 'while' conditionwhile let operator = operators.last, operator != "(" { // unwrap condition requires a valid identifierwhile let operator = operators.last, precedence(operator) >= precedence(Character(token)!) { // expected patternwhile let operator = operators.last, precedence(operator) >= precedence(Character(token)!) { // expected '{' after 'while' conditionwhile let operator = operators.last, precedence(operator) >= precedence(Character(token)!) { // unwrap condition requires a valid identifieroperators.append(Character(token)!) // cannot force unwrap value of non-optional type 'Character'while let operator = operators.last { // expected '{' after 'while' conditionwhile let operator = operators.last { // unwrap condition requires a valid identifierwhile let operator = operators.last { // expected patternenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
switch token {
case "(":
operators.append(token)
case ")":
while let operatorToken = operators.popLast(), operatorToken != "(" {
if let result = applyOperation(operatorToken, stack: &stack) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
case "+", "-", "*", "/":
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token) {
if let result = applyOperation(operators.removeLast(), stack: &stack) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.append(token)
default:
if let number = Double(token) {
stack.append(number)
} else {
throw CalculateError.invalidInput
}
}
}
while let operatorToken = operators.popLast() {
if let result = applyOperation(operatorToken, stack: &stack) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
return stack.first ?? 0
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken: String = ""
for char in string {
if char.isNumber || char == "." {
currentToken += String(char)
} else if char == "+" || char == "-" || char == "*" || char == "/" || char == "(" || char == ")" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func precedence(_ operatorToken: Character) -> Int {
switch operatorToken {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ operatorToken: Character, stack: inout [Double]) -> Double? {
guard stack.count >= 2 else { return nil }
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
switch operatorToken {
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
case "*":
return leftOperand * rightOperand
case "/":
guard rightOperand != 0 else { return nil }
return leftOperand / rightOperand
default:
return nil
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
switch token {
case "(":
operators.append(token)
case ")":
while let operatorToken = operators.popLast(), operatorToken != "(" {
if let result = applyOperation(operatorToken, stack: &stack) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
case "+", "-", "*", "/":
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token) {
if let result = applyOperation(operators.removeLast(), stack: &stack) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.append(token)
default:
if let number = Double(token) {
stack.append(number)
} else {
throw CalculateError.invalidInput
}
}
}
while let operatorToken = operators.popLast() {
if let result = applyOperation(operatorToken, stack: &stack) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
return stack.first ?? 0
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken: String = ""
for char in string {
if char.isNumber || char == "." {
currentToken += String(char)
} else if char == "+" || char == "-" || char == "*" || char == "/" || char == "(" || char == ")" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func precedence(_ operatorToken: Character) -> Int {
switch operatorToken {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ operatorToken: Character, stack: inout [Double]) -> Double? {
guard stack.count >= 2 else { return nil }
let rightOperand = stack.removeLast()
let leftOperand = stack.removeLast()
switch operatorToken {
case "+":
return leftOperand + rightOperand
case "-":
return leftOperand - rightOperand
case "*":
return leftOperand * rightOperand
case "/":
guard rightOperand != 0 else { return nil }
return leftOperand / rightOperand
default:
return nil
}
}
```operators.append(token) // no exact matches in call to instance method 'append'while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token) { // cannot convert value of type 'String' to expected argument type 'Character'operators.append(token) // no exact matches in call to instance method 'append'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) {
applyOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while let lastOperator = operators.last {
applyOperation(&stack, &operators)
}
return stack.popLast() ?? 0
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast(), let operatorChar = operators.popLast() else {
return
}
switch operatorChar {
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
default:
break
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var result: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if !currentToken.isEmpty {
result.append(currentToken)
currentToken = ""
}
result.append(String(char))
} else {
currentToken += String(char)
}
}
if !currentToken.isEmpty {
result.append(currentToken)
}
return result
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
if let number = Double(token) {
stack.append(number)
} else if token == "(" {
operators.append("(")
} else if token == ")" {
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
} else {
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) {
applyOperation(&stack, &operators)
}
operators.append(Character(token)!)
}
}
while let lastOperator = operators.last {
applyOperation(&stack, &operators)
}
return stack.popLast() ?? 0
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "*", "/":
return 2
case "+", "-":
return 1
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast(), let operatorChar = operators.popLast() else {
return
}
switch operatorChar {
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
default:
break
}
}
```while let lastOperator = operators.last, precedence(lastOperator) >= precedence(Character(token)!) { // cannot force unwrap value of non-optional type 'Character'operators.append(Character(token)!) // cannot force unwrap value of non-optional type 'Character'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
var operators: [String] = []
for token in tokens {
switch token {
case "(":
operators.append(token)
case ")":
while let lastOperator = operators.last, lastOperator != "(" {
if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.removeLast()
case "+", "-", "*", "/":
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token) {
if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.append(token)
default:
if let number = Double(token) {
stack.append(number)
} else {
throw CalculateError.invalidInput
}
}
}
while let operatorToken = operators.last {
if let result = applyOperation(operatorToken, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
return stack.popLast() ?? 0
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isNumber || char == "." {
currentToken += String(char)
} else if char.isWhitespace {
continue
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func precedence(_ operatorToken: String) -> Int {
switch operatorToken {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ operatorToken: String, _ rightOperand: Double?, _ leftOperand: Double?) -> Double? {
guard let right = rightOperand, let left = leftOperand else { return nil }
switch operatorToken {
case "+":
return left + right
case "-":
return left - right
case "*":
return left * right
case "/":
return left / right
default:
return nil
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
var stack: [Double] = []
var operators: [String] = []
for token in tokens {
switch token {
case "(":
operators.append(token)
case ")":
while let lastOperator = operators.last, lastOperator != "(" {
if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.removeLast()
case "+", "-", "*", "/":
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token) {
if let result = applyOperation(lastOperator, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
operators.append(token)
default:
if let number = Double(token) {
stack.append(number)
} else {
throw CalculateError.invalidInput
}
}
}
while let operatorToken = operators.last {
if let result = applyOperation(operatorToken, stack.popLast(), stack.popLast()) {
stack.append(result)
} else {
throw CalculateError.invalidInput
}
}
return stack.popLast() ?? 0
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken = ""
for char in string {
if char.isNumber || char == "." {
currentToken += String(char)
} else if char.isWhitespace {
continue
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func precedence(_ operatorToken: String) -> Int {
switch operatorToken {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ operatorToken: String, _ rightOperand: Double?, _ leftOperand: Double?) -> Double? {
guard let right = rightOperand, let left = leftOperand else { return nil }
switch operatorToken {
case "+":
return left + right
case "-":
return left - right
case "*":
return left * right
case "/":
return left / right
default:
return nil
}
}
``` // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
} else if char.isNumber || char == "." {
currentToken += String(char)
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
switch token {
case "(":
operators.append("(")
case ")":
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
case "+", "-", "*", "/":
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token.first!) {
applyOperation(&stack, &operators)
}
operators.append(token.first!)
default:
if let number = Double(token) {
stack.append(number)
}
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast(), let operatorChar = operators.popLast() else {
return
}
switch operatorChar {
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
default:
break
}
}### 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 = tokenize(string)
guard !tokens.isEmpty else { throw CalculateError.invalidInput }
return evaluate(tokens)
}
private func tokenize(_ string: String) -> [String] {
var tokens: [String] = []
var currentToken: String = ""
for char in string {
if char.isWhitespace {
continue
} else if char == "(" || char == ")" {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
} else if char.isNumber || char == "." {
currentToken += String(char)
} else {
if !currentToken.isEmpty {
tokens.append(currentToken)
currentToken = ""
}
tokens.append(String(char))
}
}
if !currentToken.isEmpty {
tokens.append(currentToken)
}
return tokens
}
private func evaluate(_ tokens: [String]) -> Double {
var stack: [Double] = []
var operators: [Character] = []
for token in tokens {
switch token {
case "(":
operators.append("(")
case ")":
while let lastOperator = operators.last, lastOperator != "(" {
applyOperation(&stack, &operators)
}
operators.removeLast()
case "+", "-", "*", "/":
while let lastOperator = operators.last, precedence(lastOperator) >= precedence(token.first!) {
applyOperation(&stack, &operators)
}
operators.append(token.first!)
default:
if let number = Double(token) {
stack.append(number)
}
}
}
while !operators.isEmpty {
applyOperation(&stack, &operators)
}
return stack[0]
}
private func precedence(_ operatorChar: Character) -> Int {
switch operatorChar {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
private func applyOperation(_ stack: inout [Double], _ operators: inout [Character]) {
guard let rightOperand = stack.popLast(), let leftOperand = stack.popLast(), let operatorChar = operators.popLast() else {
return
}
switch operatorChar {
case "+":
stack.append(leftOperand + rightOperand)
case "-":
stack.append(leftOperand - rightOperand)
case "*":
stack.append(leftOperand * rightOperand)
case "/":
stack.append(leftOperand / rightOperand)
default:
break
}
}
```func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, "")
}### 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) ?? ""
task.waitUntilExit()
return (output, "")
}
``` // XCTAssertTrue failedfunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = 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 { input in
if let result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = 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 { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = 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 { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}### 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 { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}### 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 { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = 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 { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = 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 { input in
if let result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = result
return result
}
}
}### 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 { input in
if let result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = 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 { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = 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 { input in
if let result = cache[input] {
return result
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
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 {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
}
```} // missing return in global function expected to return 'T'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey: "Task failed after \(attempts) attempts"])
}### 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 {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey: "Task failed after \(attempts) attempts"])
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let e {
error = e
}
}
throw error!
}### 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 error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let e {
error = e
}
}
throw error!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey : "Task failed after \(attempts) attempts"])
}### 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 {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey : "Task failed after \(attempts) attempts"])
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally log the error here
}
}
throw NSError(domain: NSCocoaErrorDomain, code: NSFileNoSuchFileError, userInfo: [NSLocalizedDescriptionKey: "Task failed after \(attempts) attempts"])
}### 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 {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally log the error here
}
}
throw NSError(domain: NSCocoaErrorDomain, code: NSFileNoSuchFileError, userInfo: [NSLocalizedDescriptionKey: "Task failed after \(attempts) attempts"])
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey: "Task failed after \(attempts) attempts"])
}### 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 {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey: "Task failed after \(attempts) attempts"])
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey : "Task failed after \(attempts) attempts"])
}### 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 {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey : "Task failed after \(attempts) attempts"])
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey : "Task failed after \(attempts) attempts"])
}### 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 {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey : "Task failed after \(attempts) attempts"])
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let caughtError {
error = caughtError
}
}
throw error!
}### 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 error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch let caughtError {
error = caughtError
}
}
throw error!
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey: "Task failed after \(attempts) attempts"])
}### 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 {
for _ in 0..<attempts {
do {
return try task()
} catch {
// Optionally handle the error here if needed
}
}
throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey: "Task failed after \(attempts) attempts"])
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory as? () -> Any
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory as? () -> Any
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}
```factories[key] = factory as? () -> Any // runtime conversion from '() -> T' to '() -> Any' is not supported; cast always fails // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, World!"))protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[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 registry: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[type] else { return nil }
return factory() as? T
}
}
```private var registry: [Any.Type: () -> Any] = [:] // type 'any Any.Type' does not conform to protocol 'Hashable'registry[type] = factory // type 'any Any.Type' cannot conform to 'Hashable'guard let factory = registry[type] else { return nil } // type 'any Any.Type' cannot conform to 'Hashable'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[type] = factory as? () -> Any
}
func resolve<T>(_ type: T.Type) -> T? {
return registry[type]?() 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 registry: [Any.Type: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[type] = factory as? () -> Any
}
func resolve<T>(_ type: T.Type) -> T? {
return registry[type]?() as? T
}
}
```private var registry: [Any.Type: () -> Any] = [:] // type 'any Any.Type' does not conform to protocol 'Hashable'registry[type] = factory as? () -> Any // runtime conversion from '() -> T' to '() -> Any' is not supported; cast always failsregistry[type] = factory as? () -> Any // type 'any Any.Type' cannot conform to 'Hashable'return registry[type]?() as? T // type 'any Any.Type' cannot conform to 'Hashable'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}### 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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}### 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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = registry[key] as? () -> T {
return factory()
}
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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = registry[key] as? () -> T {
return factory()
}
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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}### 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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}### 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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}### 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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}### 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 registry: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
registry[key] = factory()
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
return registry[key] as? T
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
typealias State = St
typealias Event = Ev
private var currentState: State
private var transitions: [State: [(Event, State)]] = [:]
init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextStates = transitions[currentState], let nextState = nextStates.first(where: { $0.0 == event })?.1 {
currentState = nextState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: []].append((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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
typealias State = St
typealias Event = Ev
private var currentState: State
private var transitions: [State: [(Event, State)]] = [:]
init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let nextStates = transitions[currentState], let nextState = nextStates.first(where: { $0.0 == event })?.1 {
currentState = nextState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: []].append((event, to))
}
}
```init(state: State) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<St, Ev>'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var state: St
private var transitions: [St: [(Ev, St)]] = [:]
init(state: St) {
self.state = state
}
var currentState: St {
return state
}
func trigger(event: Ev) {
if let nextStates = transitions[state]?.first(where: { $0.0 == event })?.1 {
state = nextStates
} else {
print("No transition defined for event \(event) from state \(state)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitions[from, default: []].append((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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var state: St
private var transitions: [St: [(Ev, St)]] = [:]
init(state: St) {
self.state = state
}
var currentState: St {
return state
}
func trigger(event: Ev) {
if let nextStates = transitions[state]?.first(where: { $0.0 == event })?.1 {
state = nextStates
} else {
print("No transition defined for event \(event) from state \(state)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitions[from, default: []].append((event, to))
}
}
```private var state: St // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'init(state: St) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<St, Ev>'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
typealias State = St
typealias Event = Ev
private var currentState: State
private var transitionTable: [State: [(Event, State)]] = [:]
init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
} else {
fatalError("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: State, to: State, event: Event) {
transitionTable[from, default: []].append((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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
typealias State = St
typealias Event = Ev
private var currentState: State
private var transitionTable: [State: [(Event, State)]] = [:]
init(state: State) {
self.currentState = state
}
var state: State {
return currentState
}
func trigger(event: Event) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
} else {
fatalError("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: State, to: State, event: Event) {
transitionTable[from, default: []].append((event, to))
}
}
```init(state: State) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<St, Ev>'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}### 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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var transitions: [State: [(Event, State)]] = [:]
var state: St
init(state: St) {
self.state = state
}
func registerTransition(from: St, to: St, event: Ev) {
let transition = (event as! Ev, to)
if var existingTransitions = transitions[from] {
existingTransitions.append(transition)
transitions[from] = existingTransitions
} else {
transitions[from] = [transition]
}
}
func trigger(event: Ev) {
guard let nextStates = transitions[state]?.filter({ $0.0 == event }) else { return }
for (_, nextState) in nextStates {
state = nextState
}
}
}### 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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var transitions: [State: [(Event, State)]] = [:]
var state: St
init(state: St) {
self.state = state
}
func registerTransition(from: St, to: St, event: Ev) {
let transition = (event as! Ev, to)
if var existingTransitions = transitions[from] {
existingTransitions.append(transition)
transitions[from] = existingTransitions
} else {
transitions[from] = [transition]
}
}
func trigger(event: Ev) {
guard let nextStates = transitions[state]?.filter({ $0.0 == event }) else { return }
for (_, nextState) in nextStates {
state = nextState
}
}
}
```init(state: St) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<St, Ev>'let transition = (event as! Ev, to) // forced cast of 'Ev' to same type has no effectprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}### 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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var state: St
private var transitions: [State: [(Event, State)]] = [:]
required init(state: St) {
self.state = state
}
var currentState: St {
return state
}
func trigger(event: Ev) {
if let nextStates = transitions[state]?.filter({ $0.0 as! Ev == event }) {
guard let nextState = nextStates.first?.1 else { return }
state = nextState
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitions[from, default: []].append((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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var state: St
private var transitions: [State: [(Event, State)]] = [:]
required init(state: St) {
self.state = state
}
var currentState: St {
return state
}
func trigger(event: Ev) {
if let nextStates = transitions[state]?.filter({ $0.0 as! Ev == event }) {
guard let nextState = nextStates.first?.1 else { return }
state = nextState
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitions[from, default: []].append((event, to))
}
}
```private var state: St // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'if let nextStates = transitions[state]?.filter({ $0.0 as! Ev == event }) { // forced cast of 'Ev' to same type has no effectprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}### 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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let newState = transitions.first(where: { $0.0 == event })?.1 {
currentState = newState
} else {
print("No transition defined for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let nextStates = transitions.first(where: { $0.0 == event })?.1 {
currentState = nextStates
} else {
print("No valid transition for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}### 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<St: Hashable, Ev: Hashable>: StateMachineProtocol {
private var currentState: St
private var transitionTable: [St: [(Ev, St)]] = [:]
required init(state: St) {
self.currentState = state
}
var state: St {
return currentState
}
func trigger(event: Ev) {
if let transitions = transitionTable[currentState], let nextStates = transitions.first(where: { $0.0 == event })?.1 {
currentState = nextStates
} else {
print("No valid transition for event \(event) from state \(currentState)")
}
}
func registerTransition(from: St, to: St, event: Ev) {
transitionTable[from, default: []].append((event, to))
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map(\.treeDepth).max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.map(\.treeDepth).max() ?? 0
}
}
}
```return 1 + contents.map(\.treeDepth).max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```class Stack<ElementType>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}### 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<ElementType>: StackProtocol {
private var elements: [ElementType] = []
init() {}
func push(_ element: ElementType) {
elements.append(element)
}
func pop() -> ElementType? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<ElementType>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
if order.count == capacity {
if let firstKey = order.first {
storage[firstKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
if order.count == capacity {
if let firstKey = order.first {
storage[firstKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private var order = [Key]()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
storage[key] = newValue
order.append(key)
if storage.count > capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
}
}
}
}### 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
storage[key] = newValue
order.append(key)
if storage.count > capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}### 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private var order = [Key]()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}### 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}### 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}### 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}### 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private let capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
}
return nil
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private let capacity: Int
private var order: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
}
return nil
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
order.append(key)
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage = [Key: Element]()
private var order = [Key]()
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
}
return nil
}
set(newValue) {
if let _ = storage[key] {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
} else {
if order.count == capacity {
if let firstKey = order.first {
storage[firstKey] = nil
order.removeFirst()
}
}
}
storage[key] = newValue
order.append(key)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var 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(newValue) {
if let _ = storage[key] {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
}
} else {
if order.count == capacity {
if let firstKey = order.first {
storage[firstKey] = nil
order.removeFirst()
}
}
}
storage[key] = newValue
order.append(key)
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
return storage[key]
} else {
return nil
}
}
set(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}### 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(newValue) {
if let _ = storage[key] {
storage[key] = newValue
if let index = order.firstIndex(of: key) {
order.remove(at: index)
order.append(key)
}
} else {
if storage.count >= capacity {
if let oldestKey = order.first {
storage[oldestKey] = nil
order.removeFirst()
}
}
storage[key] = newValue
order.append(key)
}
}
}
}
```init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
subscript(key: Key) -> Value? {
get {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
return nil
}
return value
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 3600) // Default expiration of 1 hour
} else {
removeValue(forKey: key)
}
}
}
func removeValue(forKey key: Key) {
cache.removeValue(forKey: key)
}
}### 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, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
subscript(key: Key) -> Value? {
get {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
return nil
}
return value
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 3600) // Default expiration of 1 hour
} else {
removeValue(forKey: key)
}
}
}
func removeValue(forKey key: Key) {
cache.removeValue(forKey: key)
}
}
```class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol { // type 'ExpirableCache<Key, Value>' does not conform to protocol 'ExpirableCacheProtocol'Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6XCTAssertNil(cache.get(key: "greeting")) // value of type 'ExpirableCache<String, String>' has no member 'get'Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6XCTAssertEqual(cache.get(key: "greeting"), "Hello, SwiftEval!") // value of type 'ExpirableCache<String, String>' has no member 'get'protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get {
guard let cachedItem = cache[key], Date() < cachedItem.expirationDate else {
return nil
}
return cachedItem.value
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 3600) // Default expiration time is 1 hour
} else {
remove(key: key)
}
}
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
cache[key] = (value: value, expirationDate: Date(timeIntervalSinceNow: expiration))
}
func get(key: CacheKey) -> CacheValue? {
return subscript(key: key)
}
func remove(key: CacheKey) {
cache.removeValue(forKey: key)
}
}### 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<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get {
guard let cachedItem = cache[key], Date() < cachedItem.expirationDate else {
return nil
}
return cachedItem.value
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: 3600) // Default expiration time is 1 hour
} else {
remove(key: key)
}
}
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
cache[key] = (value: value, expirationDate: Date(timeIntervalSinceNow: expiration))
}
func get(key: CacheKey) -> CacheValue? {
return subscript(key: key)
}
func remove(key: CacheKey) {
cache.removeValue(forKey: key)
}
}
```return subscript(key: key) // consecutive statements on a line must be separated by ';'return subscript(key: key) // 'subscript' functions may only be declared within a typereturn subscript(key: key) // expected subscripting element typereturn subscript(key: key) // cannot find type 'key' in scopereturn subscript(key: key) // expected '->' for subscript element typereturn subscript(key: key) // non-void function should return a valueThread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)] = [:]
subscript(key: CacheKey) -> CacheValue? {
get { return get(key: key) }
set(newValue) { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}### 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<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)] = [:]
subscript(key: CacheKey) -> CacheValue? {
get { return get(key: key) }
set(newValue) { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue> : ExpirableCacheProtocol {
private var cache = [CacheKey: (value: CacheValue, expirationDate: Date)]()
subscript(key: CacheKey) -> CacheValue? {
get { return self.get(key: key) }
set { self.put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}### 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<CacheKey: Hashable, CacheValue> : ExpirableCacheProtocol {
private var cache = [CacheKey: (value: CacheValue, expirationDate: Date)]()
subscript(key: CacheKey) -> CacheValue? {
get { return self.get(key: key) }
set { self.put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
subscript(key: Key) -> Value? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
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, Date)] = [:]
subscript(key: Key) -> Value? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
subscript(key: Key) -> Value? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
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, Date)] = [:]
subscript(key: Key) -> Value? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
subscript(_ key: Key) -> Value? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
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, Date)] = [:]
subscript(_ key: Key) -> Value? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
remove(key: key)
return nil
}
return value
}
func remove(key: Key) {
cache.removeValue(forKey: key)
}
}### 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, Date)] = [:]
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set(newValue) {
if let newValue = newValue {
put(value: newValue, key: key, expiration: .infinity)
} else {
remove(key: key)
}
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
remove(key: key)
return nil
}
return value
}
func remove(key: Key) {
cache.removeValue(forKey: key)
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let cachedItem = cache[key], Date() < cachedItem.expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return cachedItem.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<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let cachedItem = cache[key], Date() < cachedItem.expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return cachedItem.value
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}### 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<CacheKey: Hashable, CacheValue>: ExpirableCacheProtocol {
private var cache: [CacheKey: (value: CacheValue, expirationDate: Date)]
init() {
self.cache = [:]
}
subscript(key: CacheKey) -> CacheValue? {
get { return get(key: key) }
set { put(value: newValue!, key: key, expiration: .infinity) }
}
func put(value: CacheValue, key: CacheKey, expiration: TimeInterval) {
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: CacheKey) -> CacheValue? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count] as UInt8
encryptedData[i] = (charValue ^ keyCharValue).littleEndian
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
let byteValue = data[i]
let keyByteValue = keyData[i % keyData.count] as UInt8
decryptedData[i] = (byteValue ^ keyByteValue).littleEndian
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count] as UInt8
encryptedData[i] = (charValue ^ keyCharValue).littleEndian
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
let byteValue = data[i]
let keyByteValue = keyData[i % keyData.count] as UInt8
decryptedData[i] = (byteValue ^ keyByteValue).littleEndian
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}
```let charValue = string.utf16[i] // no exact matches in call to subscriptprotocol 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 {
var encryptedData = Data()
let keyBytes = key.utf8.map { Int($0) }
for (index, char) in string.utf8.enumerated() {
let keyIndex = index % keyBytes.count
let encryptedChar = char ^ keyBytes[keyIndex]
encryptedData.append(encryptedChar)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedString = ""
let keyBytes = key.utf8.map { Int($0) }
for (index, byte) in data.enumerated() {
let keyIndex = index % keyBytes.count
let decryptedByte = byte ^ keyBytes[keyIndex]
decryptedString.append(Character(UnicodeScalar(decryptedByte)!))
}
return decryptedString
}
}### 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 {
var encryptedData = Data()
let keyBytes = key.utf8.map { Int($0) }
for (index, char) in string.utf8.enumerated() {
let keyIndex = index % keyBytes.count
let encryptedChar = char ^ keyBytes[keyIndex]
encryptedData.append(encryptedChar)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedString = ""
let keyBytes = key.utf8.map { Int($0) }
for (index, byte) in data.enumerated() {
let keyIndex = index % keyBytes.count
let decryptedByte = byte ^ keyBytes[keyIndex]
decryptedString.append(Character(UnicodeScalar(decryptedByte)!))
}
return decryptedString
}
}
```let encryptedChar = char ^ keyBytes[keyIndex] // binary operator '^' cannot be applied to operands of type 'String.UTF8View.Element' (aka 'UInt8') and 'Int'let decryptedByte = byte ^ keyBytes[keyIndex] // binary operator '^' cannot be applied to operands of type 'Data.Element' (aka 'UInt8') and 'Int'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 {
var encryptedData = Data()
let keyBytes = key.utf8.map { Int($0) }
for (index, char) in string.utf8.enumerated() {
let keyIndex = index % keyBytes.count
let encryptedChar = char ^ keyBytes[keyIndex]
encryptedData.append(encryptedChar)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedString = ""
let keyBytes = key.utf8.map { Int($0) }
for (index, byte) in data.enumerated() {
let keyIndex = index % keyBytes.count
let decryptedChar = byte ^ keyBytes[keyIndex]
decryptedString.append(Character(UnicodeScalar(decryptedChar)!))
}
return decryptedString
}
}### 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 {
var encryptedData = Data()
let keyBytes = key.utf8.map { Int($0) }
for (index, char) in string.utf8.enumerated() {
let keyIndex = index % keyBytes.count
let encryptedChar = char ^ keyBytes[keyIndex]
encryptedData.append(encryptedChar)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedString = ""
let keyBytes = key.utf8.map { Int($0) }
for (index, byte) in data.enumerated() {
let keyIndex = index % keyBytes.count
let decryptedChar = byte ^ keyBytes[keyIndex]
decryptedString.append(Character(UnicodeScalar(decryptedChar)!))
}
return decryptedString
}
}
```let encryptedChar = char ^ keyBytes[keyIndex] // binary operator '^' cannot be applied to operands of type 'String.UTF8View.Element' (aka 'UInt8') and 'Int'let decryptedChar = byte ^ keyBytes[keyIndex] // binary operator '^' cannot be applied to operands of type 'Data.Element' (aka 'UInt8') and 'Int'protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value
encryptedData[i] = UInt8(charValue ^ keyCharValue)
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedString = ""
for i in 0..<data.count {
let byteValue = data[i]
let keyByteValue = keyData[i % keyData.count]
let decryptedCharValue = byteValue ^ keyByteValue
decryptedString.append(Character(UnicodeScalar(decryptedCharValue)!))
}
return decryptedString
}
}### 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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value
encryptedData[i] = UInt8(charValue ^ keyCharValue)
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedString = ""
for i in 0..<data.count {
let byteValue = data[i]
let keyByteValue = keyData[i % keyData.count]
let decryptedCharValue = byteValue ^ keyByteValue
decryptedString.append(Character(UnicodeScalar(decryptedCharValue)!))
}
return decryptedString
}
}
```let charValue = string.utf16[i] // no exact matches in call to subscriptlet keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value // value of type 'UInt8' has no member 'unicodeScalars'decryptedString.append(Character(UnicodeScalar(decryptedCharValue)!)) // cannot force unwrap value of non-optional type 'UnicodeScalar' (aka 'Unicode.Scalar')protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
encryptedData[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
decryptedData[index] = byte ^ keyData[index % keyData.count]
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}### 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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
encryptedData[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
decryptedData[index] = byte ^ keyData[index % keyData.count]
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count] as UInt8
encryptedData[i] = charValue ^ keyCharValue
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
let byteValue = data[i]
let keyByteValue = keyData[i % keyData.count] as UInt8
decryptedData[i] = byteValue ^ keyByteValue
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count] as UInt8
encryptedData[i] = charValue ^ keyCharValue
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
let byteValue = data[i]
let keyByteValue = keyData[i % keyData.count] as UInt8
decryptedData[i] = byteValue ^ keyByteValue
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}
```let charValue = string.utf16[i] // no exact matches in call to subscriptprotocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value
encryptedData[i] = UInt8(charValue ^ keyCharValue)
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
let byteValue = data[i]
let keyByteValue = keyData[i % keyData.count].unicodeScalars.first!.value
decryptedData[i] = byteValue ^ UInt8(keyByteValue)
}
if let decryptedString = String(bytes: decryptedData, encoding: .utf8) {
return decryptedString
} else {
return ""
}
}
}### 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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value
encryptedData[i] = UInt8(charValue ^ keyCharValue)
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for i in 0..<data.count {
let byteValue = data[i]
let keyByteValue = keyData[i % keyData.count].unicodeScalars.first!.value
decryptedData[i] = byteValue ^ UInt8(keyByteValue)
}
if let decryptedString = String(bytes: decryptedData, encoding: .utf8) {
return decryptedString
} else {
return ""
}
}
}
```let charValue = string.utf16[i] // no exact matches in call to subscriptlet keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value // value of type 'UInt8' has no member 'unicodeScalars'let keyByteValue = keyData[i % keyData.count].unicodeScalars.first!.value // value of type 'UInt8' has no member 'unicodeScalars'protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value
result[i] = UInt8(charValue ^ keyCharValue)
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for i in stride(from: 0, to: data.count, by: 2) {
let byte1 = data[i]
let byte2 = data[i + 1]
let keyCharValue = keyData[i / 2 % keyData.count].unicodeScalars.first!.value
result.append(UInt16(byte1) << 8 | UInt16(byte2))
result.append(UInt16(keyCharValue) << 8 | UInt16(keyCharValue))
}
return String(utf16CodeUnits: result, count: result.count)
}
}### 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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for i in 0..<string.utf16.count {
let charValue = string.utf16[i]
let keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value
result[i] = UInt8(charValue ^ keyCharValue)
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for i in stride(from: 0, to: data.count, by: 2) {
let byte1 = data[i]
let byte2 = data[i + 1]
let keyCharValue = keyData[i / 2 % keyData.count].unicodeScalars.first!.value
result.append(UInt16(byte1) << 8 | UInt16(byte2))
result.append(UInt16(keyCharValue) << 8 | UInt16(keyCharValue))
}
return String(utf16CodeUnits: result, count: result.count)
}
}
```let charValue = string.utf16[i] // no exact matches in call to subscriptlet keyCharValue = keyData[i % keyData.count].unicodeScalars.first!.value // value of type 'UInt8' has no member 'unicodeScalars'let keyCharValue = keyData[i / 2 % keyData.count].unicodeScalars.first!.value // value of type 'UInt8' has no member 'unicodeScalars'protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
let keyChar = keyData[index % keyData.count]
result[index] = UInt8(char) ^ keyChar
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for (index, byte) in data.enumerated() {
let keyChar = keyData[index % keyData.count]
result.append(UInt16(byte) ^ UInt16(keyChar))
}
return String(utf16CodeUnits: result, count: result.count)
}
}### 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 keyData = key.data(using: .utf8)!
var result = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
let keyChar = keyData[index % keyData.count]
result[index] = UInt8(char) ^ keyChar
}
return Data(result)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var result = [UInt16]()
for (index, byte) in data.enumerated() {
let keyChar = keyData[index % keyData.count]
result.append(UInt16(byte) ^ UInt16(keyChar))
}
return String(utf16CodeUnits: result, count: result.count)
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
encryptedData[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
decryptedData[index] = byte ^ keyData[index % keyData.count]
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}### 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 keyData = key.data(using: .utf8)!
var encryptedData = [UInt8](repeating: 0, count: string.utf16.count)
for (index, char) in string.utf16.enumerated() {
encryptedData[index] = UInt8(char) ^ keyData[index % keyData.count]
}
return Data(encryptedData)
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = [UInt8](repeating: 0, count: data.count)
for (index, byte) in data.enumerated() {
decryptedData[index] = byte ^ keyData[index % keyData.count]
}
return String(bytes: decryptedData, encoding: .utf8) ?? ""
}
}
```protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = Date()
self.currentRequests = 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = Date()
self.currentRequests = 0
}
}
}
```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 let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
currentRequests = 0
lastResetTime = Date()
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
currentRequests = 0
lastResetTime = Date()
}
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'lastResetTime = Date() // cannot assign to value: 'lastResetTime' is a 'let' constantThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
currentRequests = 0
lastResetTime = Date()
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
currentRequests = 0
lastResetTime = Date()
}
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'lastResetTime = Date() // cannot assign to value: 'lastResetTime' is a 'let' constantThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime, Date().timeIntervalSince(lastResetTime) > timeInterval else { return }
currentRequests = 0
lastResetTime = Date()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime, Date().timeIntervalSince(lastResetTime) > timeInterval else { return }
currentRequests = 0
lastResetTime = Date()
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'lastResetTime = Date() // cannot assign to value: 'lastResetTime' is a 'let' constantThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: TimeInterval
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastResetTime = Date().timeIntervalSince1970
self.currentRequests = 0
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
if currentTime - lastResetTime >= timeInterval {
currentRequests = 0
lastResetTime = currentTime
}
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
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 let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: TimeInterval
private var currentRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastResetTime = Date().timeIntervalSince1970
self.currentRequests = 0
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
if currentTime - lastResetTime >= timeInterval {
currentRequests = 0
lastResetTime = currentTime
}
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
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 let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime, Date().timeIntervalSince(lastResetTime) > timeInterval else { return }
currentRequests = 0
lastResetTime = Date()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime, Date().timeIntervalSince(lastResetTime) > timeInterval else { return }
currentRequests = 0
lastResetTime = Date()
}
}
```lastResetTime = Date() // cannot assign to value: 'lastResetTime' is a 'let' constantThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date
private var currentRequests: Int
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastResetTime = Date()
self.currentRequests = 0
}
func allowRequest() -> Bool {
let currentTime = Date()
if currentTime.timeIntervalSince(lastResetTime) >= timeInterval {
currentRequests = 1
lastResetTime = currentTime
return true
} else if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
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 let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date
private var currentRequests: Int
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.lastResetTime = Date()
self.currentRequests = 0
}
func allowRequest() -> Bool {
let currentTime = Date()
if currentTime.timeIntervalSince(lastResetTime) >= timeInterval {
currentRequests = 1
lastResetTime = currentTime
return true
} else if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: TimeInterval = 0
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
if currentTime - lastResetTime >= timeInterval {
currentRequests = 0
lastResetTime = currentTime
}
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
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 let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: TimeInterval = 0
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
if currentTime - lastResetTime >= timeInterval {
currentRequests = 0
lastResetTime = currentTime
}
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = Date()
self.currentRequests = 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.currentRequests = 0
}
func allowRequest() -> Bool {
resetIfNecessary()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNecessary() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = Date()
self.currentRequests = 0
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = Date()
self.currentRequests = 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var lastResetTime: Date?
private var currentRequests: Int = 0
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
resetIfNeeded()
if currentRequests < maxRequests {
currentRequests += 1
return true
} else {
return false
}
}
private func resetIfNeeded() {
guard let lastResetTime = lastResetTime else {
self.lastResetTime = Date()
self.currentRequests = 0
return
}
let elapsedTime = Date().timeIntervalSince(lastResetTime)
if elapsedTime >= timeInterval {
self.lastResetTime = Date()
self.currentRequests = 0
}
}
}
```Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### 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 = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) { [weak self] in
guard let self = self else { return }
self.value += 1
}
}
func currentValue() -> Int {
var result: Int?
queue.sync {
result = self.value
}
return result ?? 0
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) { [weak self] in
guard let self = self else { return }
self.value += 1
}
}
func currentValue() -> Int {
var result: Int?
queue.sync {
result = self.value
}
return result ?? 0
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### 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 = 0
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.counterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.counterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.counterqueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### 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 = 0
private let queue = DispatchQueue(label: "com.example.counterqueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.counterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### 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 = 0
private let queue = DispatchQueue(label: "com.example.counterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.counterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### 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 = 0
private let queue = DispatchQueue(label: "com.example.counterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### 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 = 0
private let queue = DispatchQueue(label: "com.example.CounterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int = 0
private let queue = DispatchQueue(label: "com.example.counterqueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}### 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 = 0
private let queue = DispatchQueue(label: "com.example.counterqueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var result: Int = 0
queue.sync {
result = self.value
}
return result
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
typealias Output = Output
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}### 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 {
var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(self.value))
}
func execute() -> Output {
return self.value
}
}
```protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(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> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'set(wrappedValue) { wrappedValue = newValue } // cannot find 'newValue' in scopeset(wrappedValue) { wrappedValue = newValue } // cannot assign to value: 'wrappedValue' is a 'let' constantprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}### 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 {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}### 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 {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers = [UUID: ((Value) -> Void)]()
private var nextObserverID: UUID = UUID()
var value: Value {
didSet {
notifyObservers(newValue)
}
}
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = nextObserverID
observers[id] = observer
nextObserverID = UUID(uuidString: "\(nextObserverID.uuidString)_\(id)")!
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(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> : ObservablePropertyProtocol {
private var observers = [UUID: ((Value) -> Void)]()
private var nextObserverID: UUID = UUID()
var value: Value {
didSet {
notifyObservers(newValue)
}
}
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = nextObserverID
observers[id] = observer
nextObserverID = UUID(uuidString: "\(nextObserverID.uuidString)_\(id)")!
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```notifyObservers(newValue) // cannot find 'newValue' in scopeinit(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(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> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Value = Value
private var value: Value
private var observers: [UUID: (@escaping (Value) -> Void)] = [:]
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers()
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(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> : ObservablePropertyProtocol {
typealias Value = Value
private var value: Value
private var observers: [UUID: (@escaping (Value) -> Void)] = [:]
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers()
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(value)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'private var observers: [UUID: (@escaping (Value) -> Void)] = [:] // @escaping attribute may only be used in function parameter positioninit(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'set(wrappedValue) { wrappedValue = newValue } // cannot find 'newValue' in scopeset(wrappedValue) { wrappedValue = newValue } // cannot assign to value: 'wrappedValue' is a 'let' constantprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers()
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(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> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers()
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(value)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(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> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { wrappedValue = newValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'set(wrappedValue) { wrappedValue = newValue } // cannot find 'newValue' in scopeset(wrappedValue) { wrappedValue = newValue } // cannot assign to value: 'wrappedValue' is a 'let' constantprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}### 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 {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}### 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 {
private var value: Value
private var observers = [UUID: ((Value) -> Void)]()
init(value: Value) {
self.value = value
}
var wrappedValue: Value {
get { return value }
set(newValue) {
if newValue != value {
value = newValue
notifyObservers(newValue)
}
}
}
var value: Value {
get { return wrappedValue }
set(wrappedValue) { self.wrappedValue = wrappedValue }
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(_ newValue: Value) {
for (_, observer) in observers {
observer(newValue)
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'if newValue != value { // binary operator '!=' cannot be applied to two 'Value' operandsvar value: Value { // invalid redeclaration of 'value'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
private let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.value = max(range.lowerBound, min(newValue, range.upperBound))
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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
private let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.value = max(range.lowerBound, min(newValue, range.upperBound))
self.range = range
}
}
```self.value = max(range.lowerBound, min(newValue, range.upperBound)) // cannot find 'newValue' in scopeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
private let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return value }
set { value = newValue.clamping(range) }
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.value = wrappedValue.clamping(range)
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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
private let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return value }
set { value = newValue.clamping(range) }
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.value = wrappedValue.clamping(range)
self.range = range
}
}
```
set { value = newValue.clamping(range) } // value of type 'Wrapped' has no member 'clamping'self.value = wrappedValue.clamping(range) // value of type 'Wrapped' has no member 'clamping'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.value = max(range.lowerBound, min(newValue, range.upperBound))
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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.value = max(range.lowerBound, min(newValue, range.upperBound))
self.range = range
}
}
```self.value = max(range.lowerBound, min(newValue, range.upperBound)) // cannot find 'newValue' in scopeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set { _value = newValue.clamping(to: range) }
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = wrappedValue.clamping(to: 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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set { _value = newValue.clamping(to: range) }
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = wrappedValue.clamping(to: range)
}
}
```set { _value = newValue.clamping(to: range) } // value of type 'Wrapped' has no member 'clamping'self._value = wrappedValue.clamping(to: range) // value of type 'Wrapped' has no member 'clamping'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { return value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}### 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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { return value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue >= range.lowerBound && newValue <= range.upperBound {
_value = newValue
} else if newValue < range.lowerBound {
_value = range.lowerBound
} else {
_value = range.upperBound
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}### 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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue >= range.lowerBound && newValue <= range.upperBound {
_value = newValue
} else if newValue < range.lowerBound {
_value = range.lowerBound
} else {
_value = range.upperBound
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
private let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}### 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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
private let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
var wrappedValue: Wrapped
private let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.wrappedValue = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
var wrappedValue: Wrapped
private let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.wrappedValue = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}
``` // XCTAssertEqual failed: (15) is not equal to (10)protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}### 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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var value: Wrapped
let range: ClosedRange<Wrapped>
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self.value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
var wrappedValue: Wrapped {
get { value }
set { value = max(min(newValue, range.upperBound), range.lowerBound) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}### 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<Wrapped>: ClampedProtocol where Wrapped: Comparable {
private var _value: Wrapped
let range: ClosedRange<Wrapped>
var wrappedValue: Wrapped {
get { return _value }
set {
if newValue < range.lowerBound {
_value = range.lowerBound
} else if newValue > range.upperBound {
_value = range.upperBound
} else {
_value = newValue
}
}
}
init(wrappedValue: Wrapped, _ range: ClosedRange<Wrapped>) {
self.range = range
self._value = max(min(wrappedValue, range.upperBound), range.lowerBound)
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}### 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```logger(.set, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.get, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}### 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.get, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```logger(.get, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}### 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```logger(.set, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}### 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.set, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```logger(.set, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.get, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}### 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.get, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```logger(.get, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.get, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}### 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.get, newValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
```logger(.get, newValue) // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.get, wrappedValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}### 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped {
didSet {
logger(.set, oldValue)
logger(.get, wrappedValue)
}
}
let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
}
``` // XCTAssertEqual failed: ([]) is not equal to (["Accessing value: 0"])enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Self {
return self
}
mutating func wrappedValue(_ newValue: Wrapped) {
logger(.set, newValue)
wrappedValue = newValue
}
func get() -> Wrapped {
logger(.get, wrappedValue)
return 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Self {
return self
}
mutating func wrappedValue(_ newValue: Wrapped) {
logger(.set, newValue)
wrappedValue = newValue
}
func get() -> Wrapped {
logger(.get, wrappedValue)
return wrappedValue
}
}
```
// XCTAssertEqual failed: ([]) is not equal to (["Accessing value: 0"])enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Self {
return self
}
mutating func wrappedValue(_ newValue: Wrapped) {
logger(.set, newValue)
wrappedValue = 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Self {
return self
}
mutating func wrappedValue(_ newValue: Wrapped) {
logger(.set, newValue)
wrappedValue = newValue
}
}
``` // XCTAssertEqual failed: ([]) is not equal to (["Accessing value: 0"])enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Self {
return self
}
mutating func wrappedValue(_ newValue: Wrapped) {
logger(.set, newValue)
wrappedValue = newValue
}
func get() -> Wrapped {
logger(.get, wrappedValue)
return 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<Wrapped>: LoggedProtocol {
var wrappedValue: Wrapped
private let logger: (Event, Wrapped) -> Void
init(wrappedValue: Wrapped, logger: @escaping (Event, Wrapped) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Self {
return self
}
mutating func wrappedValue(_ newValue: Wrapped) {
logger(.set, newValue)
wrappedValue = newValue
}
func get() -> Wrapped {
logger(.get, wrappedValue)
return wrappedValue
}
}
``` // XCTAssertEqual failed: ([]) is not equal to (["Accessing value: 0"])protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? fetchForecastForCity(currentSearchTerm)
}
return nil
}
private func fetchForecastForCity(_ city: String) -> ApplicationFeedback {
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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? fetchForecastForCity(currentSearchTerm)
}
return nil
}
private func fetchForecastForCity(_ city: String) -> ApplicationFeedback {
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```return try? fetchForecastForCity(currentSearchTerm) // no calls to throwing functions occur within 'try' expressionprotocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}### 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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
``` // XCTAssertEqual failed: (nil) is not equal to (Optional(Solution.ApplicationFeedback.failure(city: "Wsaw")))protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}### 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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
``` // XCTAssertEqual failed: (nil) is not equal to (Optional(Solution.ApplicationFeedback.failure(city: "Wsaw")))protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}### 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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
``` // XCTAssertEqual failed: (nil) is not equal to (Optional(Solution.ApplicationFeedback.failure(city: "Wsaw")))protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}### 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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() -> ApplicationFeedback {
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}
```return try? performSearch() // no calls to throwing functions occur within 'try' expressionprotocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}### 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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm += String(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
``` // XCTAssertEqual failed: (nil) is not equal to (Optional(Solution.ApplicationFeedback.failure(city: "Wsaw")))protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}### 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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? performSearch()
}
return nil
}
private func performSearch() throws -> ApplicationFeedback {
guard !currentSearchTerm.isEmpty else { return .failure(city: currentSearchTerm) }
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
}
}
``` // XCTAssertEqual failed: (nil) is not equal to (Optional(Solution.ApplicationFeedback.failure(city: "Wsaw")))protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? fetchForecastForCity(currentSearchTerm)
}
return nil
}
private func fetchForecastForCity(_ city: String) -> ApplicationFeedback {
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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return try? fetchForecastForCity(currentSearchTerm)
}
return nil
}
private func fetchForecastForCity(_ city: String) -> ApplicationFeedback {
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
```return try? fetchForecastForCity(currentSearchTerm) // no calls to throwing functions occur within 'try' expressionprotocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() -> ApplicationFeedback? {
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}### 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 currentSearchTerm: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
currentSearchTerm.append(character)
case .keyboardDeleteBackwards:
currentSearchTerm.removeLast()
case .searchButtonPress:
return fetchForecastForCurrentSearchTerm()
}
return nil
}
private func fetchForecastForCurrentSearchTerm() -> ApplicationFeedback? {
do {
let forecast = try provider.forecast(for: currentSearchTerm)
return .success(city: currentSearchTerm, forecast: forecast)
} catch {
return .failure(city: currentSearchTerm)
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private(set) var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = 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 cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
var wrappedValue: () -> Value
let condition: () -> Bool
private var cachedValue: Value?
private var lastCondition: Bool = false
var projectedValue: Self {
self
}
var value: Value {
get {
if condition() != lastCondition || cachedValue == nil {
cachedValue = wrappedValue()
lastCondition = condition()
}
return cachedValue!
}
set {
cachedValue = 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 {
var wrappedValue: () -> Value
let condition: () -> Bool
private var cachedValue: Value?
private var lastCondition: Bool = false
var projectedValue: Self {
self
}
var value: Value {
get {
if condition() != lastCondition || cachedValue == nil {
cachedValue = wrappedValue()
lastCondition = condition()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // type 'Cached<Value>' does not conform to protocol 'CachedProperty'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutablelastCondition = condition() // cannot assign to property: 'self' is immutable@Cached(condition: { condition }) // generic parameter 'Value' could not be inferred@Cached(condition: { condition }) // 'Cached<Value>' initializer is inaccessible due to 'private' protection levelvar cached: Int = { // property type 'Int' does not match 'wrappedValue' type '() -> Value'return value // cannot convert value of type 'Int' to closure result type '() -> Value'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set {
cachedValue = newValue
}
}
}### 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 cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
if condition() {
self.cachedValue = wrappedValue()
}
}
var wrappedValue: Value {
get {
guard condition(), cachedValue == nil else {
return cachedValue!
}
cachedValue = wrappedValue()
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}### 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 cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}### 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 cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = 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 cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}### 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 cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}### 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 cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = 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 cachedValue: Value?
private let wrappedValue: () -> Value
private let condition: () -> Bool
init(wrappedValue: @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = nil
}
var wrappedValue: Value {
get {
if condition() || cachedValue == nil {
cachedValue = wrappedValue()
}
return cachedValue!
}
set {
cachedValue = newValue
}
}
}
```
struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
var wrappedValue: () -> Value
let condition: () -> Bool
private var cachedValue: Value?
private var lastCondition: Bool?
var value: Value {
get {
if condition() != lastCondition || cachedValue == nil {
cachedValue = wrappedValue()
lastCondition = condition()
}
return cachedValue!
}
set {
wrappedValue = { newValue }
cachedValue = newValue
lastCondition = condition()
}
}
}### 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 {
var wrappedValue: () -> Value
let condition: () -> Bool
private var cachedValue: Value?
private var lastCondition: Bool?
var value: Value {
get {
if condition() != lastCondition || cachedValue == nil {
cachedValue = wrappedValue()
lastCondition = condition()
}
return cachedValue!
}
set {
wrappedValue = { newValue }
cachedValue = newValue
lastCondition = condition()
}
}
}
```
struct Cached<Value>: CachedProperty { // type 'Cached<Value>' does not conform to protocol 'CachedProperty'cachedValue = wrappedValue() // cannot assign to property: 'self' is immutablelastCondition = condition() // cannot assign to property: 'self' is immutable@Cached(condition: { condition }) // 'Cached<Value>' initializer is inaccessible due to 'private' protection level@Cached(condition: { condition }) // generic parameter 'Value' could not be inferredvar cached: Int = { // property type 'Int' does not match 'wrappedValue' type '() -> Value'return value // cannot convert value of type 'Int' to closure result type '() -> Value'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### 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 { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
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: right }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### 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 { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### 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 { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### 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 { higherThan: MultiplicationPrecedence }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: right }
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: right }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence { associativity: left }
func >>> <A, B, C>(f: @escaping (A) -> B, g: @escaping (B) -> C) -> (A) -> C {
return { x in g(f(x)) }
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
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? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
return digest.finalize()
}
```if let bytesRead = inputStream.read(buffer, maxLength: bufferSize) { // initializer for conditional binding must have Optional type, not 'Int'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize), !chunk.isEmpty {
digest.update(data: chunk)
}
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? {
var digest = SHA256()
while let chunk = inputStream.readData(upTo: bufferSize), !chunk.isEmpty {
digest.update(data: chunk)
}
return digest.finalize()
}
```while let chunk = inputStream.readData(upTo: bufferSize), !chunk.isEmpty { // value of type 'InputStream' has no member 'readData'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256 Digest()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
let chunk = Data(bytes: buffer, count: bytesRead)
digest.update(with: chunk)
}
}
buffer.deallocate()
return digest
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256 Digest()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
let chunk = Data(bytes: buffer, count: bytesRead)
digest.update(with: chunk)
}
}
buffer.deallocate()
return digest
}
```var digest = SHA256 Digest() // use of protocol 'Digest' as a type must be written 'any Digest'var digest = SHA256 Digest() // consecutive statements on a line must be separated by ';'var digest = SHA256 Digest() // 'any Digest' cannot be constructed because it has no accessible initializersvar digest = SHA256 Digest() // expected member name or constructor call after type namedigest.update(with: chunk) // no exact matches in call to instance method 'update'return digest // cannot convert return expression of type 'SHA256.Type' to return type 'SHA256Digest?'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256 Digest()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
return digest
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256 Digest()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
return digest
}
```var digest = SHA256 Digest() // use of protocol 'Digest' as a type must be written 'any Digest'var digest = SHA256 Digest() // consecutive statements on a line must be separated by ';'var digest = SHA256 Digest() // 'any Digest' cannot be constructed because it has no accessible initializersvar digest = SHA256 Digest() // expected member name or constructor call after type namedigest.update(data: Data(bytes: buffer, count: bytesRead)) // cannot reference 'mutating' method as function valuedigest.update(data: Data(bytes: buffer, count: bytesRead)) // instance member 'update' cannot be used on type 'SHA256'return digest // cannot convert return expression of type 'SHA256.Type' to return type 'SHA256Digest?'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
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? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
return digest.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
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? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
return digest.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
} else if bytesRead == -1 {
return nil // Error reading from stream
}
}
buffer.deallocate()
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? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
} else if bytesRead == -1 {
return nil // Error reading from stream
}
}
buffer.deallocate()
return digest.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upToLength: bufferSize), !chunk.isEmpty {
digest.update(data: chunk)
}
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? {
var digest = SHA256()
while let chunk = inputStream.readData(upToLength: bufferSize), !chunk.isEmpty {
digest.update(data: chunk)
}
return digest.finalize()
}
```while let chunk = inputStream.readData(upToLength: bufferSize), !chunk.isEmpty { // value of type 'InputStream' has no member 'readData'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
while let chunk = inputStream.readData(upToLength: bufferSize), !chunk.isEmpty {
digest.update(data: chunk)
}
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? {
var digest = SHA256()
while let chunk = inputStream.readData(upToLength: bufferSize), !chunk.isEmpty {
digest.update(data: chunk)
}
return digest.finalize()
}
```while let chunk = inputStream.readData(upToLength: bufferSize), !chunk.isEmpty { // value of type 'InputStream' has no member 'readData'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
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? {
var digest = SHA256()
let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(buffer, maxLength: bufferSize)
if bytesRead > 0 {
digest.update(data: Data(bytes: buffer, count: bytesRead))
}
}
buffer.deallocate()
return digest.finalize()
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}
```let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(bytes[..<index]), encoding: .ascii)!
} else {
self = String(bytes: bytes, encoding: .ascii)!
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(bytes[..<index]), encoding: .ascii)!
} else {
self = String(bytes: bytes, encoding: .ascii)!
}
}
}
```let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data([tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data([tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}
```let data = Data([tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15]) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(bytes[..<index]), encoding: .ascii)!
} else {
self = String(bytes: bytes, encoding: .ascii)!
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(bytes[..<index]), encoding: .ascii)!
} else {
self = String(bytes: bytes, encoding: .ascii)!
}
}
}
```let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
if let index = array.firstIndex(of: 0) {
self = String(bytes: Array(array[..<index]), encoding: .ascii)!
} else {
self = String(bytes: array, encoding: .ascii)!
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
if let index = array.firstIndex(of: 0) {
self = String(bytes: Array(array[..<index]), encoding: .ascii)!
} else {
self = String(bytes: array, encoding: .ascii)!
}
}
}
```let array = Array(tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).filter { $0 != 0 }
self = String(bytes: bytes, encoding: .ascii)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).filter { $0 != 0 }
self = String(bytes: bytes, encoding: .ascii)!
}
}
```let bytes = Array(tuple16).filter { $0 != 0 } // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = Data(bytes: tuple16)
if let str = String(data: data, encoding: .utf8) {
self = str
} else {
self = ""
}
}
}
```let data = Data(bytes: tuple16) // type 'Tuple16' (aka '(Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)') cannot conform to 'Sequence'typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self = String(bytes: bytes, encoding: .utf8)!
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self = String(bytes: bytes, encoding: .utf8)!
}
}
}
```let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
if let index = array.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(array[..<index]), encoding: .utf8)!
} else {
self = String(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) {
let array = Array(tuple16)
if let index = array.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(array[..<index]), encoding: .utf8)!
} else {
self = String(bytes: array, encoding: .utf8)!
}
}
}
```let array = Array(tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self = String(bytes: bytes, encoding: .utf8)!
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16).map { $0 }
if let index = bytes.firstIndex(where: { $0 == 0 }) {
self = String(bytes: Array(bytes[..<index]), encoding: .utf8)!
} else {
self = String(bytes: bytes, encoding: .utf8)!
}
}
}
```let bytes = Array(tuple16).map { $0 } // no exact matches in call to initializerimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription == rhs.formatDescription &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), min(CVPixelBufferGetDataSize(lhs), CVPixelBufferGetDataSize(rhs))) == 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 {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription == rhs.formatDescription &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), min(CVPixelBufferGetDataSize(lhs), CVPixelBufferGetDataSize(rhs))) == 0
}
```return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.formatDescription == rhs.formatDescription && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription == rhs.formatDescription && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}### 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.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}
```return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs) == CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) == CVPixelBufferGetHeight(rhs)
guard lhsSize == rhsSize else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let lhsWidth = CVPixelBufferGetWidth(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
guard lhsWidth == rhsWidth else {
return false
}
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
guard lhsHeight == rhsHeight else {
return false
}
let lhsBaseAddress = CVPixelBufferLockBaseAddress(lhs, [])
let rhsBaseAddress = CVPixelBufferLockBaseAddress(rhs, [])
defer {
CVPixelBufferUnlockBaseAddress(lhs, [])
CVPixelBufferUnlockBaseAddress(rhs, [])
}
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * lhsHeight)
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * rhsHeight)
return lhsData == rhsData
}### 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 {
let lhsSize = CVPixelBufferGetWidth(lhs) == CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) == CVPixelBufferGetHeight(rhs)
guard lhsSize == rhsSize else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let lhsWidth = CVPixelBufferGetWidth(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
guard lhsWidth == rhsWidth else {
return false
}
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
guard lhsHeight == rhsHeight else {
return false
}
let lhsBaseAddress = CVPixelBufferLockBaseAddress(lhs, [])
let rhsBaseAddress = CVPixelBufferLockBaseAddress(rhs, [])
defer {
CVPixelBufferUnlockBaseAddress(lhs, [])
CVPixelBufferUnlockBaseAddress(rhs, [])
}
let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * lhsHeight)
let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * rhsHeight)
return lhsData == rhsData
}
```let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * lhsHeight) // cannot force unwrap value of non-optional type 'CVReturn' (aka 'Int32')let lhsData = Data(bytes: lhsBaseAddress!, count: lhsBytesPerRow * lhsHeight) // cannot convert value of type 'CVReturn' (aka 'Int32') to expected argument type 'UnsafeRawPointer'let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * rhsHeight) // cannot convert value of type 'CVReturn' (aka 'Int32') to expected argument type 'UnsafeRawPointer'let rhsData = Data(bytes: rhsBaseAddress!, count: rhsBytesPerRow * rhsHeight) // cannot force unwrap value of non-optional type 'CVReturn' (aka 'Int32')import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs) == CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) == CVPixelBufferGetHeight(rhs)
guard lhsSize == rhsSize else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let lhsBaseAddress = CVPixelBufferLockBaseAddress(lhs, [])
let rhsBaseAddress = CVPixelBufferLockBaseAddress(rhs, [])
defer {
CVPixelBufferUnlockBaseAddress(lhs, [])
CVPixelBufferUnlockBaseAddress(rhs, [])
}
let lhsLength = CVPixelBufferGetDataSize(lhs)
let rhsLength = CVPixelBufferGetDataSize(rhs)
guard lhsLength == rhsLength else {
return false
}
return memcmp(lhsBaseAddress!, rhsBaseAddress!, lhsLength) == 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 {
let lhsSize = CVPixelBufferGetWidth(lhs) == CVPixelBufferGetHeight(lhs)
let rhsSize = CVPixelBufferGetWidth(rhs) == CVPixelBufferGetHeight(rhs)
guard lhsSize == rhsSize else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
guard lhsBytesPerRow == rhsBytesPerRow else {
return false
}
let lhsBaseAddress = CVPixelBufferLockBaseAddress(lhs, [])
let rhsBaseAddress = CVPixelBufferLockBaseAddress(rhs, [])
defer {
CVPixelBufferUnlockBaseAddress(lhs, [])
CVPixelBufferUnlockBaseAddress(rhs, [])
}
let lhsLength = CVPixelBufferGetDataSize(lhs)
let rhsLength = CVPixelBufferGetDataSize(rhs)
guard lhsLength == rhsLength else {
return false
}
return memcmp(lhsBaseAddress!, rhsBaseAddress!, lhsLength) == 0
}
```return memcmp(lhsBaseAddress!, rhsBaseAddress!, lhsLength) == 0 // cannot convert value of type 'CVReturn' (aka 'Int32') to expected argument type 'UnsafeRawPointer?'return memcmp(lhsBaseAddress!, rhsBaseAddress!, lhsLength) == 0 // cannot force unwrap value of non-optional type 'CVReturn' (aka 'Int32')return memcmp(lhsBaseAddress!, rhsBaseAddress!, lhsLength) == 0 // cannot convert value of type 'CVReturn' (aka 'Int32') to expected argument type 'UnsafeRawPointer?'return memcmp(lhsBaseAddress!, rhsBaseAddress!, lhsLength) == 0 // cannot force unwrap value of non-optional type 'CVReturn' (aka 'Int32')import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription == rhs.formatDescription &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 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 {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription == rhs.formatDescription &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}
```return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.formatDescription == rhs.formatDescription && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription == rhs.formatDescription && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs),
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs),
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
let lhsData = CVPixelBufferGetDataPointer(lhs)!
let rhsData = CVPixelBufferGetDataPointer(rhs)!
let width = CVPixelBufferGetWidth(lhs)
let height = CVPixelBufferGetHeight(lhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
for y in 0..<height {
let lhsRow = lhsData.advanced(by: y * bytesPerRow)
let rhsRow = rhsData.advanced(by: y * bytesPerRow)
for x in 0..<width {
let lhsPixel = lhsRow.advanced(by: x * MemoryLayout<UInt8>.size).pointee
let rhsPixel = rhsRow.advanced(by: x * MemoryLayout<UInt8>.size).pointee
if lhsPixel != rhsPixel {
return false
}
}
}
return true
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard CVPixelBufferGetWidth(lhs) == CVPixelBufferGetWidth(rhs),
CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs),
CVPixelBufferGetPixelFormatType(lhs) == CVPixelBufferGetPixelFormatType(rhs) else {
return false
}
let lhsData = CVPixelBufferGetDataPointer(lhs)!
let rhsData = CVPixelBufferGetDataPointer(rhs)!
let width = CVPixelBufferGetWidth(lhs)
let height = CVPixelBufferGetHeight(lhs)
let bytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
for y in 0..<height {
let lhsRow = lhsData.advanced(by: y * bytesPerRow)
let rhsRow = rhsData.advanced(by: y * bytesPerRow)
for x in 0..<width {
let lhsPixel = lhsRow.advanced(by: x * MemoryLayout<UInt8>.size).pointee
let rhsPixel = rhsRow.advanced(by: x * MemoryLayout<UInt8>.size).pointee
if lhsPixel != rhsPixel {
return false
}
}
}
return true
}
```let lhsData = CVPixelBufferGetDataPointer(lhs)! // cannot find 'CVPixelBufferGetDataPointer' in scopelet rhsData = CVPixelBufferGetDataPointer(rhs)! // cannot find 'CVPixelBufferGetDataPointer' in scopeimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}### 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.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}
```return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs), rhsSize = CVPixelBufferGetWidth(rhs)
guard lhsSize == rhsSize && CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs), rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
var lhsBaseAddress: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(lhs, .readOnly) }
lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
var rhsBaseAddress: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(rhs, .readOnly) }
rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
guard let lhsAddr = lhsBaseAddress, let rhsAddr = rhsBaseAddress else {
return false
}
let length = CVPixelBufferGetDataSize(lhs)
return memcmp(lhsAddr, rhsAddr, length) == 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 {
let lhsSize = CVPixelBufferGetWidth(lhs), rhsSize = CVPixelBufferGetWidth(rhs)
guard lhsSize == rhsSize && CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs), rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
var lhsBaseAddress: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(lhs, .readOnly) }
lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
var rhsBaseAddress: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(rhs, .readOnly) }
rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
guard let lhsAddr = lhsBaseAddress, let rhsAddr = rhsBaseAddress else {
return false
}
let length = CVPixelBufferGetDataSize(lhs)
return memcmp(lhsAddr, rhsAddr, length) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsSize = CVPixelBufferGetWidth(lhs), rhsSize = CVPixelBufferGetWidth(rhs)
guard lhsSize == rhsSize && CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs), rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
var lhsData: UnsafeMutableRawPointer?
var rhsData: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(lhs, .readOnly) }
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(rhs, .readOnly) }
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
guard let lhsPtr = lhsData, let rhsPtr = rhsData else {
return false
}
let bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let totalBytes = bytesPerRow * CVPixelBufferGetHeight(lhs)
return memcmp(lhsPtr, rhsPtr, totalBytes) == 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 {
let lhsSize = CVPixelBufferGetWidth(lhs), rhsSize = CVPixelBufferGetWidth(rhs)
guard lhsSize == rhsSize && CVPixelBufferGetHeight(lhs) == CVPixelBufferGetHeight(rhs) else {
return false
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs), rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
guard lhsFormat == rhsFormat else {
return false
}
var lhsData: UnsafeMutableRawPointer?
var rhsData: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(lhs, .readOnly) }
CVPixelBufferLockBaseAddress(rhs, .readOnly)
defer { CVPixelBufferUnlockBaseAddress(rhs, .readOnly) }
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
guard let lhsPtr = lhsData, let rhsPtr = rhsData else {
return false
}
let bytesPerRow = CVPixelBufferGetBytesPerRowOfPlane(lhs, 0)
let totalBytes = bytesPerRow * CVPixelBufferGetHeight(lhs)
return memcmp(lhsPtr, rhsPtr, totalBytes) == 0
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.width == rhs.width &&
lhs.height == rhs.height &&
lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}### 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.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType &&
CVPixelBufferLockBaseAddress(lhs, .readOnly) != nil &&
CVPixelBufferLockBaseAddress(rhs, .readOnly) != nil &&
memcmp(CVPixelBufferGetBaseAddress(lhs), CVPixelBufferGetBaseAddress(rhs), CVPixelBufferGetDataSize(lhs)) == 0
}
```return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'return lhs.width == rhs.width && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'width'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.height == rhs.height && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'height'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription?.pixelFormatType == rhs.formatDescription?.pixelFormatType && // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}
```
pointer.initialize(to: PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deallocate() }
return pointer.pointee
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deallocate() }
return pointer.pointee
}
}
```pointer.initialize(to: PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}
```let publicValue = pointer.pointee.value // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
var publicItem = PublicItem(value: 0)
memcpy(&publicItem, &item, MemoryLayout<PrivateItem>.size)
return publicItem
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
var publicItem = PublicItem(value: 0)
memcpy(&publicItem, &item, MemoryLayout<PrivateItem>.size)
return publicItem
}
}
```memcpy(&publicItem, &item, MemoryLayout<PrivateItem>.size) // cannot pass immutable value as inout argument: 'item' is a 'let' constantstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deallocate() }
return pointer.pointee
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deallocate() }
return pointer.pointee
}
}
```pointer.initialize(to: PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PrivateItem>.allocate(capacity: 1)
pointer.initialize(to: item)
let publicValue = pointer.pointee.value
pointer.deinitialize(count: 1)
pointer.deallocate()
return PublicItem(value: publicValue)
}
}
```let publicValue = pointer.pointee.value // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}
```pointer.initialize(to: PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
var publicItem = PublicItem(value: 0)
memcpy(&publicItem, &item, MemoryLayout<PrivateItem>.size)
return publicItem
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
var publicItem = PublicItem(value: 0)
memcpy(&publicItem, &item, MemoryLayout<PrivateItem>.size)
return publicItem
}
}
```memcpy(&publicItem, &item, MemoryLayout<PrivateItem>.size) // cannot pass immutable value as inout argument: 'item' is a 'let' constantstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deinitialize(count: 1); pointer.deallocate() }
return pointer.pointee
}
}
```pointer.initialize(to: PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deallocate() }
return pointer.pointee
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
let pointer = UnsafeMutablePointer<PublicItem>.allocate(capacity: 1)
pointer.initialize(to: PublicItem(value: item.value))
defer { pointer.deallocate() }
return pointer.pointee
}
}
```pointer.initialize(to: PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").map { String($0) } }
for i in 0..<components[0].count {
if i >= components[1].count {
return .orderedDescending
}
let leftComponent = components[0][i]
let rightComponent = components[1][i]
if let leftInt = Int(leftComponent), let rightInt = Int(rightInt) {
if leftInt < rightInt {
return .orderedAscending
} else if leftInt > rightInt {
return .orderedDescending
}
} else {
let leftVersion = VersionString(leftComponent)
let rightVersion = VersionString(rightComponent)
if leftVersion < rightVersion {
return .orderedAscending
} else if leftVersion > rightVersion {
return .orderedDescending
}
}
}
if components[0].count < components[1].count {
return .orderedAscending
}
return .orderedSame
}
struct VersionString: Comparable {
let major: Int?
let minor: Int?
let patch: Int?
let prerelease: String?
init?(_ string: String) {
let parts = string.split(separator: "-")
guard let versionParts = parts.first?.split(separator: ".") else { return nil }
self.major = Int(versionParts[0])
self.minor = versionParts.count > 1 ? Int(versionParts[1]) : nil
self.patch = versionParts.count > 2 ? Int(versionParts[2]) : nil
if parts.count > 1 {
self.prerelease = String(parts[1])
}
}
static func < (lhs: VersionString, rhs: VersionString) -> Bool {
if let lhsMajor = lhs.major, let rhsMajor = rhs.major, lhsMajor != rhsMajor {
return lhsMajor < rhsMajor
}
if let lhsMinor = lhs.minor, let rhsMinor = rhs.minor, lhsMinor != rhsMinor {
return lhsMinor < rhsMinor
}
if let lhsPatch = lhs.patch, let rhsPatch = rhs.patch, lhsPatch != rhsPatch {
return lhsPatch < rhsPatch
}
if let lhsPrerelease = lhs.prerelease, let rhsPrerelease = rhs.prerelease {
return lhsPrerelease < rhsPrerelease
}
return false
}
}### 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 components = [lhs, rhs].map { $0.split(separator: ".").map { String($0) } }
for i in 0..<components[0].count {
if i >= components[1].count {
return .orderedDescending
}
let leftComponent = components[0][i]
let rightComponent = components[1][i]
if let leftInt = Int(leftComponent), let rightInt = Int(rightInt) {
if leftInt < rightInt {
return .orderedAscending
} else if leftInt > rightInt {
return .orderedDescending
}
} else {
let leftVersion = VersionString(leftComponent)
let rightVersion = VersionString(rightComponent)
if leftVersion < rightVersion {
return .orderedAscending
} else if leftVersion > rightVersion {
return .orderedDescending
}
}
}
if components[0].count < components[1].count {
return .orderedAscending
}
return .orderedSame
}
struct VersionString: Comparable {
let major: Int?
let minor: Int?
let patch: Int?
let prerelease: String?
init?(_ string: String) {
let parts = string.split(separator: "-")
guard let versionParts = parts.first?.split(separator: ".") else { return nil }
self.major = Int(versionParts[0])
self.minor = versionParts.count > 1 ? Int(versionParts[1]) : nil
self.patch = versionParts.count > 2 ? Int(versionParts[2]) : nil
if parts.count > 1 {
self.prerelease = String(parts[1])
}
}
static func < (lhs: VersionString, rhs: VersionString) -> Bool {
if let lhsMajor = lhs.major, let rhsMajor = rhs.major, lhsMajor != rhsMajor {
return lhsMajor < rhsMajor
}
if let lhsMinor = lhs.minor, let rhsMinor = rhs.minor, lhsMinor != rhsMinor {
return lhsMinor < rhsMinor
}
if let lhsPatch = lhs.patch, let rhsPatch = rhs.patch, lhsPatch != rhsPatch {
return lhsPatch < rhsPatch
}
if let lhsPrerelease = lhs.prerelease, let rhsPrerelease = rhs.prerelease {
return lhsPrerelease < rhsPrerelease
}
return false
}
}
```if let leftInt = Int(leftComponent), let rightInt = Int(rightInt) { // cannot find 'rightInt' in scopeif leftVersion < rightVersion { // binary operator '<' cannot be applied to two 'VersionString?' operands} else if leftVersion > rightVersion { // binary operator '>' cannot be applied to two 'VersionString?' operandsenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
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 components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let components = [lhs, rhs].map { $0.split(separator: ".").compactMap { Int($0) } }
for i in 0..<min(components[0].count, components[1].count) {
if components[0][i] != components[1][i] {
return components[0][i] < components[1][i] ? .orderedAscending : .orderedDescending
}
}
if components[0].count != components[1].count {
return components[0].count < components[1].count ? .orderedAscending : .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failed