Metadata
| Key | Value |
|---|---|
| engine | mlx |
| prompt | instruct |
| temp | 0.2 |
| top_p | 0.95 |
| max_new_tokens | 1024 |
| n_completions | 10 |
Solutions
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
return json as? JSON ?? [:]
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
return json as? JSON ?? [:]
} catch {
throw ParsingError.internalError(error)
}
}
```
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
let json = try JSONSerialization.jsonObject(with: data)
guard let result = json as? JSON else {
throw ParsingError.internalError(json)
}
return result
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
let json = try JSONSerialization.jsonObject(with: data)
guard let result = json as? JSON else {
throw ParsingError.internalError(json)
}
return result
}
```
throw ParsingError.internalError(json) // argument type 'Any' does not conform to expected type 'Error'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
return json as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
return json as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
let options = JSONSerialization.ReadingOptions.allowFragments
do {
return try JSONSerialization.jsonObject(with: data, options: options) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
let options = JSONSerialization.ReadingOptions.allowFragments
do {
return try JSONSerialization.jsonObject(with: data, options: options) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
return json as? JSON ?? [:]
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
return json as? JSON ?? [:]
} catch {
throw ParsingError.internalError(error)
}
}
```
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
let options = JSONSerialization.ReadingOptions.allowFragments
let result: JSON
do {
result = try JSONSerialization.jsonObject(with: data, options: options) as! JSON
} catch {
throw ParsingError.internalError(error)
}
return result
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
let options = JSONSerialization.ReadingOptions.allowFragments
let result: JSON
do {
result = try JSONSerialization.jsonObject(with: data, options: options) as! JSON
} catch {
throw ParsingError.internalError(error)
}
return result
}
```
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
return try JSONSerialization.jsonObject(with: data, options: []) as! JSON
} catch {
throw ParsingError.internalError(error)
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
func generate(_ nodes: [HTMLNode]) -> String {
nodes.map(generate).joined()
}
func generate(_ attributes: [String : String]) -> String {
attributes.map { " \($0)=\"\($1)\"" }.joined()
}
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
return "<\(name)\(generate(attributes))>\(generate(children))</\(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{
func generate(_ nodes: [HTMLNode]) -> String {
nodes.map(generate).joined()
}
func generate(_ attributes: [String : String]) -> String {
attributes.map { " \($0)=\"\($1)\"" }.joined()
}
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
return "<\(name)\(generate(attributes))>\(generate(children))</\(name)>"
}
}
```
nodes.map(generate).joined() // no 'generate' candidates produce the expected type '(HTMLNode) throws -> String' for parameter #0indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
func generate(_ nodes: [HTMLNode]) -> String {
nodes.map(generate).joined()
}
func generate(_ attributes: [String : String]) -> String {
attributes.map { " \($0)=\"\($1)\"" }.joined()
}
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
return "<\(name)\(generate(attributes))>\(generate(children))</\(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{
func generate(_ nodes: [HTMLNode]) -> String {
nodes.map(generate).joined()
}
func generate(_ attributes: [String : String]) -> String {
attributes.map { " \($0)=\"\($1)\"" }.joined()
}
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
return "<\(name)\(generate(attributes))>\(generate(children))</\(name)>"
}
}
```
nodes.map(generate).joined() // no 'generate' candidates produce the expected type '(HTMLNode) throws -> String' for parameter #0indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let children = children.map(generate).joined()
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(children)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let children = children.map(generate).joined()
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(children)</\(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 let .text(content):
return content
case let .element(name, attributes, children):
let attributes = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let children = children.map(generate).joined()
return "<\(name)\(attributes.isEmpty ? "" : " ")\(attributes)>\(children)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
let attributes = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let children = children.map(generate).joined()
return "<\(name)\(attributes.isEmpty ? "" : " ")\(attributes)>\(children)</\(name)>"
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined(separator: "")
return "<\(name)\(attributesString.isEmpty ? "" : " \(attributesString)")>\(childrenString)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attributesString = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined(separator: "")
return "<\(name)\(attributesString.isEmpty ? "" : " \(attributesString)")>\(childrenString)</\(name)>"
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
let attributes = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let children = children.map { generate($0) }.joined()
return "<\(name)\(attributes.isEmpty ? "" : " \(attributes)")>\(children)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
let attributes = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let children = children.map { generate($0) }.joined()
return "<\(name)\(attributes.isEmpty ? "" : " \(attributes)")>\(children)</\(name)>"
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
func generate(_ tree: HTMLNode, level: Int) -> String {
switch tree {
case let .text(content):
return String(repeating: " ", count: level) + content
case let .element(name, attributes, children):
let attributes = attributes.map { " \($0)=\"\($1)\"" }.joined()
let children = children.map { generate($0, level: level + 1) }.joined(separator: "\n")
return [
String(repeating: " ", count: level) + "<\(name)\(attributes)>",
children,
String(repeating: " ", count: level) + "</\(name)>"
].joined(separator: "\n")
}
}
return generate(tree, level: 0)
}### 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{
func generate(_ tree: HTMLNode, level: Int) -> String {
switch tree {
case let .text(content):
return String(repeating: " ", count: level) + content
case let .element(name, attributes, children):
let attributes = attributes.map { " \($0)=\"\($1)\"" }.joined()
let children = children.map { generate($0, level: level + 1) }.joined(separator: "\n")
return [
String(repeating: " ", count: level) + "<\(name)\(attributes)>",
children,
String(repeating: " ", count: level) + "</\(name)>"
].joined(separator: "\n")
}
}
return generate(tree, level: 0)
}
```
Start: a ["href": "swifteval"] // XCTAssertEqual failed: (Start: div [:]indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let children = children.map(generate).joined(separator: "")
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(children)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case let .text(content):
return content
case let .element(name, attributes, children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let children = children.map(generate).joined(separator: "")
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(children)</\(name)>"
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let children = children.map(generate).joined(separator: "")
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(children)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0.key)=\"\($0.value)\"" }.joined(separator: " ")
let children = children.map(generate).joined(separator: "")
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(children)</\(name)>"
}
}
```
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let children = children.map(generate).joined()
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(children)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
let attrs = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let children = children.map(generate).joined()
return "<\(name)\(attrs.isEmpty ? "" : " \(attrs)")>\(children)</\(name)>"
}
}
```
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.map { String($0) }
let numbers = try tokens.reduce(into: []) { (result, token) in
if let number = Double(token) {
result.append(number)
} else if token == "(" {
result.append(token)
} else if token == ")" {
while let last = result.last, last != "(" {
result.removeLast()
}
result.removeLast()
}
}
let infix = numbers.reversed()
let postfix = try infix.reduce(into: []) { (result, token) in
if let number = Double(token) {
result.append(number)
} else {
let right = result.removeLast()
let left = result.removeLast()
let resultNumber = try calculate(left, right, token)
result.append(resultNumber)
}
}
return postfix.first ?? 0
}
func calculate(_ left: Double, _ right: Double, _ operation: String) throws -> Double {
switch operation {
case "+": return left + right
case "-": return left - right
case "*": return left * right
case "/": return left / right
default: throw CalculateError.invalidInput
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.map { String($0) }
let numbers = try tokens.reduce(into: []) { (result, token) in
if let number = Double(token) {
result.append(number)
} else if token == "(" {
result.append(token)
} else if token == ")" {
while let last = result.last, last != "(" {
result.removeLast()
}
result.removeLast()
}
}
let infix = numbers.reversed()
let postfix = try infix.reduce(into: []) { (result, token) in
if let number = Double(token) {
result.append(number)
} else {
let right = result.removeLast()
let left = result.removeLast()
let resultNumber = try calculate(left, right, token)
result.append(resultNumber)
}
}
return postfix.first ?? 0
}
func calculate(_ left: Double, _ right: Double, _ operation: String) throws -> Double {
switch operation {
case "+": return left + right
case "-": return left - right
case "*": return left * right
case "/": return left / right
default: throw CalculateError.invalidInput
}
}
```
while let last = result.last, last != "(" { // cannot convert value of type 'Any' to expected argument type 'String'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.map { String($0) }
let ops = ["+", "-", "*", "/"]
let numbers = tokens.filter { !ops.contains($0) }.compactMap { Double($0) }
let opsCount = tokens.filter { ops.contains($0) }.count
guard opsCount == numbers.count - 1 else {
throw CalculateError.invalidInput
}
var result = numbers[0]
for i in 0..<opsCount {
let op = tokens[2 * i + 1]
let num = numbers[i + 1]
switch op {
case "+":
result += num
case "-":
result -= num
case "*":
result *= num
case "/":
result /= num
default:
break
}
}
return result
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.map { String($0) }
let ops = ["+", "-", "*", "/"]
let numbers = tokens.filter { !ops.contains($0) }.compactMap { Double($0) }
let opsCount = tokens.filter { ops.contains($0) }.count
guard opsCount == numbers.count - 1 else {
throw CalculateError.invalidInput
}
var result = numbers[0]
for i in 0..<opsCount {
let op = tokens[2 * i + 1]
let num = numbers[i + 1]
switch op {
case "+":
result += num
case "-":
result -= num
case "*":
result *= num
case "/":
result /= num
default:
break
}
}
return result
}
```
// XCTAssertEqual failed: (8.0) is not equal to (6.0)enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.map { String($0) }
let stack = Stack<Double>()
for token in tokens {
switch token {
case "+":
stack.push(stack.pop()! + stack.pop()!)
case "-":
stack.push(-stack.pop()! + stack.pop()!)
case "*":
stack.push(stack.pop()! * stack.pop()!)
case "/":
stack.push(1 / (stack.pop()! * stack.pop()!))
case "(":
stack.push(0)
case ")":
stack.pop()
default:
if let value = Double(token) {
stack.push(value)
} else {
throw CalculateError.invalidInput
}
}
}
return stack.pop()!
}
class Stack<T> {
private var array: [T] = []
func push(_ element: T) {
array.append(element)
}
func pop() -> T? {
return array.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.map { String($0) }
let stack = Stack<Double>()
for token in tokens {
switch token {
case "+":
stack.push(stack.pop()! + stack.pop()!)
case "-":
stack.push(-stack.pop()! + stack.pop()!)
case "*":
stack.push(stack.pop()! * stack.pop()!)
case "/":
stack.push(1 / (stack.pop()! * stack.pop()!))
case "(":
stack.push(0)
case ")":
stack.pop()
default:
if let value = Double(token) {
stack.push(value)
} else {
throw CalculateError.invalidInput
}
}
}
return stack.pop()!
}
class Stack<T> {
private var array: [T] = []
func push(_ element: T) {
array.append(element)
}
func pop() -> T? {
return array.popLast()
}
}
```
stack.pop() // result of call to 'pop()' is unused // Fatal error: Unexpectedly found nil while unwrapping an Optional valueenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
guard tokens.count > 0 else {
throw CalculateError.invalidInput
}
var stack = [Double]()
for token in tokens {
switch token {
case "+":
guard let last = stack.popLast(), let prev = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(prev + last)
case "-":
guard let last = stack.popLast(), let prev = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(prev - last)
case "*":
guard let last = stack.popLast(), let prev = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(prev * last)
case "/":
guard let last = stack.popLast(), let prev = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(prev / last)
default:
guard let value = Double(token) else {
throw CalculateError.invalidInput
}
stack.append(value)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack[0]
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
guard tokens.count > 0 else {
throw CalculateError.invalidInput
}
var stack = [Double]()
for token in tokens {
switch token {
case "+":
guard let last = stack.popLast(), let prev = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(prev + last)
case "-":
guard let last = stack.popLast(), let prev = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(prev - last)
case "*":
guard let last = stack.popLast(), let prev = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(prev * last)
case "/":
guard let last = stack.popLast(), let prev = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(prev / last)
default:
guard let value = Double(token) else {
throw CalculateError.invalidInput
}
stack.append(value)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack[0]
}
```
// Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
let stack = Stack<Double>()
for token in tokens {
switch token {
case "+":
let b = stack.pop()
let a = stack.pop()
stack.push(a + b)
case "-":
let b = stack.pop()
let a = stack.pop()
stack.push(a - b)
case "*":
let b = stack.pop()
let a = stack.pop()
stack.push(a * b)
case "/":
let b = stack.pop()
let a = stack.pop()
stack.push(a / b)
case "(":
stack.push(0)
case ")":
stack.pop()
default:
if let value = Double(token) {
stack.push(value)
} else {
throw CalculateError.invalidInput
}
}
}
return stack.pop()
}
class Stack<T> {
private var array: [T] = []
func push(_ element: T) {
array.append(element)
}
func pop() -> T {
return array.removeLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
let stack = Stack<Double>()
for token in tokens {
switch token {
case "+":
let b = stack.pop()
let a = stack.pop()
stack.push(a + b)
case "-":
let b = stack.pop()
let a = stack.pop()
stack.push(a - b)
case "*":
let b = stack.pop()
let a = stack.pop()
stack.push(a * b)
case "/":
let b = stack.pop()
let a = stack.pop()
stack.push(a / b)
case "(":
stack.push(0)
case ")":
stack.pop()
default:
if let value = Double(token) {
stack.push(value)
} else {
throw CalculateError.invalidInput
}
}
}
return stack.pop()
}
class Stack<T> {
private var array: [T] = []
func push(_ element: T) {
array.append(element)
}
func pop() -> T {
return array.removeLast()
}
}
```
stack.pop() // result of call to 'pop()' is unused // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
var stack = [Double]()
for token in tokens {
switch token {
case "+":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a + b)
case "-":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(b - a)
case "*":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a * b)
case "/":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(b / a)
case "(":
stack.append(0)
case ")":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a + b)
default:
guard let value = Double(token) else {
throw CalculateError.invalidInput
}
stack.append(value)
}
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
var stack = [Double]()
for token in tokens {
switch token {
case "+":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a + b)
case "-":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(b - a)
case "*":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a * b)
case "/":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(b / a)
case "(":
stack.append(0)
case ")":
guard let a = stack.popLast(), let b = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(a + b)
default:
guard let value = Double(token) else {
throw CalculateError.invalidInput
}
stack.append(value)
}
}
guard let result = stack.popLast() else {
throw CalculateError.invalidInput
}
return result
}
```
// Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
var stack = [Double]()
var operators = [Character]()
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if let op = token.first, "+-*/()".contains(op) {
operators.append(op)
} else {
throw CalculateError.invalidInput
}
}
while !operators.isEmpty {
let op = operators.removeFirst()
let result: Double
switch op {
case "+":
result = stack.removeLast() + stack.removeLast()
case "-":
result = stack.removeLast() - stack.removeLast()
case "*":
result = stack.removeLast() * stack.removeLast()
case "/":
result = stack.removeLast() / stack.removeLast()
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
return stack.first ?? 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
var stack = [Double]()
var operators = [Character]()
for token in tokens {
if let value = Double(token) {
stack.append(value)
} else if let op = token.first, "+-*/()".contains(op) {
operators.append(op)
} else {
throw CalculateError.invalidInput
}
}
while !operators.isEmpty {
let op = operators.removeFirst()
let result: Double
switch op {
case "+":
result = stack.removeLast() + stack.removeLast()
case "-":
result = stack.removeLast() - stack.removeLast()
case "*":
result = stack.removeLast() * stack.removeLast()
case "/":
result = stack.removeLast() / stack.removeLast()
default:
throw CalculateError.invalidInput
}
stack.append(result)
}
return stack.first ?? 0
}
```
// Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
guard tokens.count > 0 else {
throw CalculateError.invalidInput
}
var stack = [Double]()
for token in tokens {
switch token {
case "+":
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let last = stack.removeLast()
let secondLast = stack.removeLast()
stack.append(secondLast + last)
case "-":
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let last = stack.removeLast()
let secondLast = stack.removeLast()
stack.append(secondLast - last)
case "*":
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let last = stack.removeLast()
let secondLast = stack.removeLast()
stack.append(secondLast * last)
case "/":
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let last = stack.removeLast()
let secondLast = stack.removeLast()
stack.append(secondLast / last)
default:
guard let number = Double(token) else {
throw CalculateError.invalidInput
}
stack.append(number)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack[0]
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
guard tokens.count > 0 else {
throw CalculateError.invalidInput
}
var stack = [Double]()
for token in tokens {
switch token {
case "+":
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let last = stack.removeLast()
let secondLast = stack.removeLast()
stack.append(secondLast + last)
case "-":
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let last = stack.removeLast()
let secondLast = stack.removeLast()
stack.append(secondLast - last)
case "*":
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let last = stack.removeLast()
let secondLast = stack.removeLast()
stack.append(secondLast * last)
case "/":
guard stack.count >= 2 else {
throw CalculateError.invalidInput
}
let last = stack.removeLast()
let secondLast = stack.removeLast()
stack.append(secondLast / last)
default:
guard let number = Double(token) else {
throw CalculateError.invalidInput
}
stack.append(number)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack[0]
}
```
// Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var string = string
var stack = [Double]()
while !string.isEmpty {
let token = string.removeFirst()
switch token {
case "+":
stack.append(stack.removeLast() + stack.removeLast())
case "-":
stack.append(-stack.removeLast() + stack.removeLast())
case "*":
stack.append(stack.removeLast() * stack.removeLast())
case "/":
let divisor = stack.removeLast()
guard divisor != 0 else { throw CalculateError.invalidInput }
stack.append(stack.removeLast() / divisor)
case "(":
let endIndex = string.firstIndex(of: ")")!
let substring = string[string.startIndex..<endIndex]
stack.append(try calculate(String(substring)))
string.removeSubrange(string.startIndex..<string.index(after: endIndex))
case ")":
return stack.removeLast()
default:
stack.append(Double(String(token))!)
}
}
guard stack.count == 1 else { throw CalculateError.invalidInput }
return stack.removeLast()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var string = string
var stack = [Double]()
while !string.isEmpty {
let token = string.removeFirst()
switch token {
case "+":
stack.append(stack.removeLast() + stack.removeLast())
case "-":
stack.append(-stack.removeLast() + stack.removeLast())
case "*":
stack.append(stack.removeLast() * stack.removeLast())
case "/":
let divisor = stack.removeLast()
guard divisor != 0 else { throw CalculateError.invalidInput }
stack.append(stack.removeLast() / divisor)
case "(":
let endIndex = string.firstIndex(of: ")")!
let substring = string[string.startIndex..<endIndex]
stack.append(try calculate(String(substring)))
string.removeSubrange(string.startIndex..<string.index(after: endIndex))
case ")":
return stack.removeLast()
default:
stack.append(Double(String(token))!)
}
}
guard stack.count == 1 else { throw CalculateError.invalidInput }
return stack.removeLast()
}
```
// Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
var stack = [Double]()
for token in tokens {
switch token {
case "+":
guard let right = stack.popLast(), let left = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(left + right)
case "-":
guard let right = stack.popLast(), let left = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(left - right)
case "*":
guard let right = stack.popLast(), let left = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(left * right)
case "/":
guard let right = stack.popLast(), let left = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(left / right)
case "(":
stack.append(0)
case ")":
guard let last = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(last)
default:
guard let number = Double(token) else {
throw CalculateError.invalidInput
}
stack.append(number)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack[0]
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let tokens = string.split(separator: " ")
var stack = [Double]()
for token in tokens {
switch token {
case "+":
guard let right = stack.popLast(), let left = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(left + right)
case "-":
guard let right = stack.popLast(), let left = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(left - right)
case "*":
guard let right = stack.popLast(), let left = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(left * right)
case "/":
guard let right = stack.popLast(), let left = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(left / right)
case "(":
stack.append(0)
case ")":
guard let last = stack.popLast() else {
throw CalculateError.invalidInput
}
stack.append(last)
default:
guard let number = Double(token) else {
throw CalculateError.invalidInput
}
stack.append(number)
}
}
guard stack.count == 1 else {
throw CalculateError.invalidInput
}
return stack[0]
}
```
// Fatal error: Error raised at top level: Solution.CalculateError.invalidInputfunc execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### 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 outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output ?? "", "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output ?? "", "")
}
```
// 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)
return (output ?? "", "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output ?? "", "")
}
```
// XCTAssertTrue failedfunc execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8)
let error = String(data: errorData, encoding: .utf8)
return (output ?? "", error ?? "")
}### 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 outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8)
let error = String(data: errorData, encoding: .utf8)
return (output ?? "", error ?? "")
}
```
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.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 outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### 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 outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### 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 outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### 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 outputPipe = Pipe()
task.standardOutput = outputPipe
let errorPipe = Pipe()
task.standardError = errorPipe
task.launch()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.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)
return (output ?? "", "")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let pipe = Pipe()
task.standardOutput = pipe
task.standardError = pipe
task.launch()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8)
return (output ?? "", "")
}
```
// XCTAssertTrue failedfunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache = [T: U]()
return { x in
if let y = cache[x] {
return y
} else {
let y = function(x)
cache[x] = y
return y
}
}
}### 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 { x in
if let y = cache[x] {
return y
} else {
let y = function(x)
cache[x] = y
return y
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache = [T: U]()
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache = [T: U]()
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache = [T: U]()
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache = [T: U]()
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = 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 { x in
if let cachedValue = cache[x] {
return cachedValue
} else {
let result = function(x)
cache[x] = result
return result
}
}
}
```
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var error: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
error = error
}
}
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 {
error = error
}
}
throw error!
}
```
error = error // cannot assign to value: 'error' is immutablefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
var lastError: Error?
for _ in 0..<attempts {
do {
return try task()
} catch {
lastError = error
}
}
throw lastError!
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] {
return (factory as! () -> T)()
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] {
return (factory as! () -> T)()
}
return nil
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[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 factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] 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 factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? (() -> T) else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? (() -> T) else {
return nil
}
return factory()
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] {
return (factory as! () -> T)()
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] {
return (factory as! () -> T)()
}
return nil
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] {
return (factory as! () -> T)()
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] {
return (factory as! () -> T)()
}
return nil
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] {
return (factory as! () -> T)()
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
if let factory = factories[key] {
return (factory as! () -> T)()
}
return nil
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? (() -> T) else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? (() -> T) else {
return nil
}
return factory()
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? (() -> T) else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? (() -> T) else {
return nil
}
return factory()
}
}
```
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
factories[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = factories[String(describing: type)] as? () -> T else {
return nil
}
return factory()
}
}
```
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else { return }
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else { return }
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else { return }
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else { return }
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else { return }
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let newState = transitions[state]?[event] else {
return
}
state = newState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var _state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
_state = state
}
var state: State {
return _state
}
func trigger(event: Event) {
if let newState = transitions[_state]?[event] {
_state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var _state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
_state = state
}
var state: State {
return _state
}
func trigger(event: Event) {
if let newState = transitions[_state]?[event] {
_state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions[state]?[event] {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions[state]?[event] {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
guard let nextState = transitions[state]?[event] else {
return
}
state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions[state]?[event] {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [State: [Event: State]] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let nextState = transitions[state]?[event] {
state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from, default: [:]][event] = to
}
}
```
private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0) { max($0, $1.treeDepth) }
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let .file(_, size):
return size
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case let .directory(_, contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}
```
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(_, let size):
return size
case .directory(_, let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file(_, _):
return 1
case .directory(_, let contents):
return 1 + contents.reduce(0, { max($0, $1.treeDepth) })
}
}
}
```
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var stack: [T] = []
func push(_ element: T) {
stack.append(element)
}
func pop() -> T? {
return stack.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var stack: [T] = []
func push(_ element: T) {
stack.append(element)
}
func pop() -> T? {
return stack.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var array: [T] = []
func push(_ element: T) {
array.append(element)
}
func pop() -> T? {
return array.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var array: [T] = []
func push(_ element: T) {
array.append(element)
}
func pop() -> T? {
return array.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var stack: [T] = []
func push(_ element: T) {
stack.append(element)
}
func pop() -> T? {
return stack.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var stack: [T] = []
func push(_ element: T) {
stack.append(element)
}
func pop() -> T? {
return stack.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```
class Stack<T>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var stack: [T] = []
init() {}
func push(_ element: T) {
stack.append(element)
}
func pop() -> T? {
return stack.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var stack: [T] = []
init() {}
func push(_ element: T) {
stack.append(element)
}
func pop() -> T? {
return stack.popLast()
}
}
```
init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache = [Key: Element]()
private var queue = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
if let newValue = newValue {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
queue.append(key)
cache[key] = newValue
if cache.count > capacity {
let key = queue.removeFirst()
cache.removeValue(forKey: key)
}
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache = [Key: Element]()
private var queue = [Key]()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
if let newValue = newValue {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
queue.append(key)
cache[key] = newValue
if cache.count > capacity {
let key = queue.removeFirst()
cache.removeValue(forKey: key)
}
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
private var currentSize = 0
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
queue.append(key)
cache[key] = newValue
currentSize += 1
if currentSize > capacity {
let key = queue.removeFirst()
cache.removeValue(forKey: key)
currentSize -= 1
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
private var currentSize = 0
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
queue.append(key)
cache[key] = newValue
currentSize += 1
if currentSize > capacity {
let key = queue.removeFirst()
cache.removeValue(forKey: key)
currentSize -= 1
}
}
}
}
```
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 let capacity: Int
private var cache: [Key: Element] = [:]
private var priority: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
guard let index = priority.firstIndex(of: key) else { return nil }
priority.remove(at: index)
priority.append(key)
return cache[key]
}
set {
if priority.count == capacity, let key = priority.first {
cache.removeValue(forKey: key)
priority.removeFirst()
}
if let value = newValue {
cache[key] = value
priority.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 let capacity: Int
private var cache: [Key: Element] = [:]
private var priority: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
guard let index = priority.firstIndex(of: key) else { return nil }
priority.remove(at: index)
priority.append(key)
return cache[key]
}
set {
if priority.count == capacity, let key = priority.first {
cache.removeValue(forKey: key)
priority.removeFirst()
}
if let value = newValue {
cache[key] = value
priority.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 cache: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
private let lock = NSLock()
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
lock.lock()
defer { lock.unlock() }
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
lock.lock()
defer { lock.unlock() }
if let newValue = newValue {
if queue.count == capacity {
let keyToRemove = queue.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
queue.append(key)
cache[key] = newValue
} else {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
private let lock = NSLock()
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
lock.lock()
defer { lock.unlock() }
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
lock.lock()
defer { lock.unlock() }
if let newValue = newValue {
if queue.count == capacity {
let keyToRemove = queue.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
queue.append(key)
cache[key] = newValue
} else {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
cache.removeValue(forKey: key)
}
}
}
}
```
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
private var capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = keys.firstIndex(of: key) {
keys.remove(at: index)
keys.append(key)
}
return cache[key]
}
set {
if let index = keys.firstIndex(of: key) {
keys.remove(at: index)
}
keys.append(key)
cache[key] = newValue
if keys.count > capacity {
let key = keys.removeFirst()
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
private var capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = keys.firstIndex(of: key) {
keys.remove(at: index)
keys.append(key)
}
return cache[key]
}
set {
if let index = keys.firstIndex(of: key) {
keys.remove(at: index)
}
keys.append(key)
cache[key] = newValue
if keys.count > capacity {
let key = keys.removeFirst()
cache.removeValue(forKey: key)
}
}
}
}
```
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var storage: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
private var currentSize = 0
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return storage[key]
}
set {
if let value = newValue {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
queue.append(key)
storage[key] = value
currentSize += 1
if currentSize > capacity {
let key = queue.removeFirst()
storage.removeValue(forKey: key)
currentSize -= 1
}
} else {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
storage.removeValue(forKey: key)
currentSize -= 1
}
}
}
}### 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 queue: [Key] = []
private let capacity: Int
private var currentSize = 0
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return storage[key]
}
set {
if let value = newValue {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
queue.append(key)
storage[key] = value
currentSize += 1
if currentSize > capacity {
let key = queue.removeFirst()
storage.removeValue(forKey: key)
currentSize -= 1
}
} else {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
storage.removeValue(forKey: key)
currentSize -= 1
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private var capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
if let newValue = newValue {
if queue.count == capacity {
let key = queue.removeFirst()
cache.removeValue(forKey: key)
}
queue.append(key)
cache[key] = newValue
} else {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private var capacity: Int
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
if let newValue = newValue {
if queue.count == capacity {
let key = queue.removeFirst()
cache.removeValue(forKey: key)
}
queue.append(key)
cache[key] = newValue
} else {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
cache.removeValue(forKey: key)
}
}
}
}
```
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
private let lock = NSLock()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
lock.lock()
defer { lock.unlock() }
return cache[key]
}
set {
lock.lock()
defer { lock.unlock() }
if let value = newValue {
cache[key] = value
if queue.contains(key) {
queue.remove(key)
}
queue.append(key)
if queue.count > capacity {
let oldestKey = queue.removeFirst()
cache.removeValue(forKey: oldestKey)
}
} else {
cache.removeValue(forKey: key)
queue.remove(key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
private let lock = NSLock()
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
lock.lock()
defer { lock.unlock() }
return cache[key]
}
set {
lock.lock()
defer { lock.unlock() }
if let value = newValue {
cache[key] = value
if queue.contains(key) {
queue.remove(key)
}
queue.append(key)
if queue.count > capacity {
let oldestKey = queue.removeFirst()
cache.removeValue(forKey: oldestKey)
}
} else {
cache.removeValue(forKey: key)
queue.remove(key)
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'queue.remove(key) // no exact matches in call to instance method 'remove'queue.remove(key) // no exact matches in call to instance method 'remove'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
if let newValue = newValue {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
queue.append(key)
cache[key] = newValue
if queue.count > capacity {
let oldestKey = queue.removeFirst()
cache.removeValue(forKey: oldestKey)
}
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.append(key)
}
return cache[key]
}
set {
if let newValue = newValue {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
queue.append(key)
cache[key] = newValue
if queue.count > capacity {
let oldestKey = queue.removeFirst()
cache.removeValue(forKey: oldestKey)
}
}
}
}
}
```
init(capacity: Int) { // initializer requirement 'init(capacity:)' can only be satisfied by a 'required' initializer in non-final class 'Cache<Key, Element>'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private var capacity: Int
private var head: Int = 0
private var tail: Int = 0
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.insert(key, at: head)
return cache[key]
}
return nil
}
set {
if let newValue = newValue {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.insert(key, at: head)
cache[key] = newValue
} else {
if queue.count == capacity {
let tailKey = queue.removeLast()
cache.removeValue(forKey: tailKey)
}
queue.insert(key, at: head)
cache[key] = newValue
}
} else {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
cache.removeValue(forKey: key)
}
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var cache: [Key: Element] = [:]
private var queue: [Key] = []
private var capacity: Int
private var head: Int = 0
private var tail: Int = 0
required init(capacity: Int) {
self.capacity = capacity
}
subscript(key: Key) -> Element? {
get {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.insert(key, at: head)
return cache[key]
}
return nil
}
set {
if let newValue = newValue {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
queue.insert(key, at: head)
cache[key] = newValue
} else {
if queue.count == capacity {
let tailKey = queue.removeLast()
cache.removeValue(forKey: tailKey)
}
queue.insert(key, at: head)
cache[key] = newValue
}
} else {
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
cache.removeValue(forKey: key)
}
}
}
}
}
```
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.queue")
private let dateProvider: () -> Date
init(dateProvider: @escaping () -> Date = Date.init) {
self.dateProvider = dateProvider
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
put(value: newValue!, key: key, expiration: 0)
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, self?.dateProvider().addingTimeInterval(expiration) ?? Date.init())
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let value = cache[key] else {
return nil
}
if value.expiration < dateProvider() {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.queue")
private let dateProvider: () -> Date
init(dateProvider: @escaping () -> Date = Date.init) {
self.dateProvider = dateProvider
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
put(value: newValue!, key: key, expiration: 0)
}
}
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, self?.dateProvider().addingTimeInterval(expiration) ?? Date.init())
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let value = cache[key] else {
return nil
}
if value.expiration < dateProvider() {
cache.removeValue(forKey: key)
return nil
}
return value.value
}
}
}
```
self?.cache[key] = (value, self?.dateProvider().addingTimeInterval(expiration) ?? Date.init()) // cannot assign value of type '(Value, Date?)' to subscript of type '(value: Value, expiration: TimeInterval)' (aka '(value: Value, expiration: Double)')return nil // 'nil' is not compatible with closure result type 'Value'Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, Date().addingTimeInterval(expiration).timeIntervalSince1970)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key], expiration > Date().timeIntervalSince1970 else {
cache[key] = nil
return nil
}
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, Date().addingTimeInterval(expiration).timeIntervalSince1970)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key], expiration > Date().timeIntervalSince1970 else {
cache[key] = nil
return nil
}
return value
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "com.expirablecache.queue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, expiration)
}
}
func get(key: Key) -> Value? {
queue.sync { [weak self] in
guard let cache = self?.cache[key] else { return nil }
guard cache.expiration > Date().timeIntervalSince1970 else {
self?.cache[key] = nil
return nil
}
return cache.value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "com.expirablecache.queue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, expiration)
}
}
func get(key: Key) -> Value? {
queue.sync { [weak self] in
guard let cache = self?.cache[key] else { return nil }
guard cache.expiration > Date().timeIntervalSince1970 else {
self?.cache[key] = nil
return nil
}
return cache.value
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.queue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, Date().timeIntervalSince1970 + expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key], expiration > Date().timeIntervalSince1970 else {
cache[key] = nil
return nil
}
return value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "com.expirableCache.queue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, Date().timeIntervalSince1970 + expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key], expiration > Date().timeIntervalSince1970 else {
cache[key] = nil
return nil
}
return value
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue: DispatchQueue = DispatchQueue(label: "com.ExpirableCache.queue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, Date().timeIntervalSince1970 + expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key], expiration > Date().timeIntervalSince1970 else {
cache[key] = nil
return nil
}
return value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
return
}
put(value: newValue, key: key, expiration: 60)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue: DispatchQueue = DispatchQueue(label: "com.ExpirableCache.queue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, Date().timeIntervalSince1970 + expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key], expiration > Date().timeIntervalSince1970 else {
cache[key] = nil
return nil
}
return value
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
guard let newValue = newValue else {
return
}
put(value: newValue, key: key, expiration: 60)
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue", qos: .userInteractive)
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, Date().addingTimeInterval(expiration).timeIntervalSince1970)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache[key] = nil
return nil
}
return value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
guard let value = newValue else { return }
put(value: value, key: key, expiration: 60 * 60)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue", qos: .userInteractive)
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, Date().addingTimeInterval(expiration).timeIntervalSince1970)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache[key] = nil
return nil
}
return value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
guard let value = newValue else { return }
put(value: value, key: key, expiration: 60 * 60)
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async {
self.cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration).timeIntervalSince1970)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache[key] = nil
return nil
}
return value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
put(value: newValue!, key: key, expiration: 60)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async {
self.cache[key] = (value: value, expiration: Date().addingTimeInterval(expiration).timeIntervalSince1970)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let (value, expiration) = cache[key] else { return nil }
if expiration < Date().timeIntervalSince1970 {
cache[key] = nil
return nil
}
return value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
put(value: newValue!, key: key, expiration: 60)
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let cacheValue = cache[key] else { return nil }
if cacheValue.expiration < Date.timeIntervalSinceReferenceDate {
cache.removeValue(forKey: key)
return nil
}
return cacheValue.value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
put(value: newValue!, key: key, expiration: 10)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value, expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let cacheValue = cache[key] else { return nil }
if cacheValue.expiration < Date.timeIntervalSinceReferenceDate {
cache.removeValue(forKey: key)
return nil
}
return cacheValue.value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
put(value: newValue!, key: key, expiration: 10)
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value: value, expiration: expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let value = cache[key] else { return nil }
guard value.expiration > Date().timeIntervalSince1970 else {
cache[key] = nil
return nil
}
return value.value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
guard let newValue = newValue else { return }
put(value: newValue, key: key, expiration: 0)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "ExpirableCacheQueue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async { [weak self] in
self?.cache[key] = (value: value, expiration: expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let value = cache[key] else { return nil }
guard value.expiration > Date().timeIntervalSince1970 else {
cache[key] = nil
return nil
}
return value.value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
guard let newValue = newValue else { return }
put(value: newValue, key: key, expiration: 0)
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "com.expirable.cache.queue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async {
self.cache[key] = (value: value, expiration: expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let cacheValue = cache[key] else { return nil }
let expiration = cacheValue.expiration
let now = Date().timeIntervalSince1970
if now > expiration {
cache.removeValue(forKey: key)
return nil
}
return cacheValue.value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
guard let value = newValue else { return }
put(value: value, key: key, expiration: 60)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
private let queue = DispatchQueue(label: "com.expirable.cache.queue")
func put(value: Value, key: Key, expiration: TimeInterval) {
queue.async {
self.cache[key] = (value: value, expiration: expiration)
}
}
func get(key: Key) -> Value? {
queue.sync {
guard let cacheValue = cache[key] else { return nil }
let expiration = cacheValue.expiration
let now = Date().timeIntervalSince1970
if now > expiration {
cache.removeValue(forKey: key)
return nil
}
return cacheValue.value
}
}
subscript(key: Key) -> Value? {
get {
get(key: key)
}
set {
guard let value = newValue else { return }
put(value: value, key: key, expiration: 60)
}
}
}
```
Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
let length = stringData.count / MemoryLayout<UInt8>.size
let stringBytes = stringData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: length))
}
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
for i in 0..<length {
result.append(&stringBytes[i], length: MemoryLayout<UInt8>.size)
}
for i in 0..<length {
result.replaceBytes(in: NSRange(location: i, length: MemoryLayout<UInt8>.size),
withBytes: &keyBytes[i % keyLength])
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let dataLength = data.count / MemoryLayout<UInt8>.size
let dataBytes = data.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: dataLength))
}
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
let result = NSMutableData()
for i in 0..<dataLength {
result.append(&dataBytes[i], length: MemoryLayout<UInt8>.size)
}
for i in 0..<dataLength {
result.replaceBytes(in: NSRange(location: i, length: MemoryLayout<UInt8>.size),
withBytes: &keyBytes[i % keyLength])
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
let length = stringData.count / MemoryLayout<UInt8>.size
let stringBytes = stringData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: length))
}
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
for i in 0..<length {
result.append(&stringBytes[i], length: MemoryLayout<UInt8>.size)
}
for i in 0..<length {
result.replaceBytes(in: NSRange(location: i, length: MemoryLayout<UInt8>.size),
withBytes: &keyBytes[i % keyLength])
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let dataLength = data.count / MemoryLayout<UInt8>.size
let dataBytes = data.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: dataLength))
}
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
let result = NSMutableData()
for i in 0..<dataLength {
result.append(&dataBytes[i], length: MemoryLayout<UInt8>.size)
}
for i in 0..<dataLength {
result.replaceBytes(in: NSRange(location: i, length: MemoryLayout<UInt8>.size),
withBytes: &keyBytes[i % keyLength])
}
return String(data: result as Data, encoding: .utf8)!
}
}
```
let stringBytes = stringData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadlet keyBytes = keyData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadresult.append(&stringBytes[i], length: MemoryLayout<UInt8>.size) // cannot pass immutable value as inout argument: 'stringBytes' is a 'let' constantwithBytes: &keyBytes[i % keyLength]) // cannot pass immutable value as inout argument: 'keyBytes' is a 'let' constantlet dataBytes = data.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadlet keyBytes = keyData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadresult.append(&dataBytes[i], length: MemoryLayout<UInt8>.size) // cannot pass immutable value as inout argument: 'dataBytes' is a 'let' constantwithBytes: &keyBytes[i % keyLength]) // cannot pass immutable value as inout argument: 'keyBytes' is a 'let' constantprotocol 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var char = stringData.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee
char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee
result.append(&char, length: 1)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<data.count {
var char = data.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee
char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee
result.append(&char, length: 1)
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var char = stringData.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee
char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee
result.append(&char, length: 1)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<data.count {
var char = data.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee
char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee
result.append(&char, length: 1)
}
return String(data: result as Data, encoding: .utf8)!
}
}
```
var char = stringData.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // incorrect argument label in call (have 'with:', expected 'in:')var char = stringData.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // value of type 'Data' has no member 'bytes'var char = stringData.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // cannot convert value of type 'NSRange' (aka '_NSRange') to expected argument type 'Range<Data.Index>' (aka 'Range<Int>')char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // cannot convert value of type 'NSRange' (aka '_NSRange') to expected argument type 'Range<Data.Index>' (aka 'Range<Int>')char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // value of type 'Data' has no member 'bytes'char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // incorrect argument label in call (have 'with:', expected 'in:')var char = data.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // incorrect argument label in call (have 'with:', expected 'in:')var char = data.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // cannot convert value of type 'NSRange' (aka '_NSRange') to expected argument type 'Range<Data.Index>' (aka 'Range<Int>')var char = data.subdata(with: NSMakeRange(i, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // value of type 'Data' has no member 'bytes'char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // incorrect argument label in call (have 'with:', expected 'in:')char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // cannot convert value of type 'NSRange' (aka '_NSRange') to expected argument type 'Range<Data.Index>' (aka 'Range<Int>')char ^= keyData.subdata(with: NSMakeRange(i % keyData.count, 1)).bytes.bindMemory(to: UInt8.self, capacity: 1).pointee // value of type 'Data' has no member 'bytes'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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
let length = stringData.count / MemoryLayout<UInt8>.size
let stringBytes = stringData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: length))
}
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
for i in 0..<length {
result.append(stringBytes[i] ^ keyBytes[i % keyLength])
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
let dataLength = data.count / MemoryLayout<UInt8>.size
let dataBytes = data.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: dataLength))
}
let result = NSMutableData()
for i in 0..<dataLength {
result.append(dataBytes[i] ^ keyBytes[i % keyLength])
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
let length = stringData.count / MemoryLayout<UInt8>.size
let stringBytes = stringData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: length))
}
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
for i in 0..<length {
result.append(stringBytes[i] ^ keyBytes[i % keyLength])
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
let dataLength = data.count / MemoryLayout<UInt8>.size
let dataBytes = data.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: dataLength))
}
let result = NSMutableData()
for i in 0..<dataLength {
result.append(dataBytes[i] ^ keyBytes[i % keyLength])
}
return String(data: result as Data, encoding: .utf8)!
}
}
```
let stringBytes = stringData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadlet keyBytes = keyData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadresult.append(stringBytes[i] ^ keyBytes[i % keyLength]) // cannot convert value of type 'UInt8' to expected argument type 'Data'let keyBytes = keyData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadlet dataBytes = data.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadresult.append(dataBytes[i] ^ keyBytes[i % keyLength]) // cannot convert value of type 'UInt8' to expected argument type 'Data'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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var char = stringData[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<data.count {
var char = data[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var char = stringData[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<data.count {
var char = data[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let resultData = NSMutableData()
let length = stringData.count / MemoryLayout<UInt8>.size
let stringBytes = stringData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: length))
}
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
for i in 0..<length {
resultData.append(&stringBytes[i], length: MemoryLayout<UInt8>.size)
}
for i in 0..<length {
resultData.replaceBytes(in: NSRange(location: i, length: MemoryLayout<UInt8>.size),
withBytes: &keyBytes[i % keyLength],
length: MemoryLayout<UInt8>.size)
}
return resultData as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let dataLength = data.count / MemoryLayout<UInt8>.size
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let dataBytes = data.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: dataLength))
}
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
var resultBytes = [UInt8](repeating: 0, count: dataLength)
for i in 0..<dataLength {
resultBytes[i] = dataBytes[i] ^ keyBytes[i % keyLength]
}
return String(bytes: resultBytes, 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)!
let stringData = string.data(using: .utf8)!
let resultData = NSMutableData()
let length = stringData.count / MemoryLayout<UInt8>.size
let stringBytes = stringData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: length))
}
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
for i in 0..<length {
resultData.append(&stringBytes[i], length: MemoryLayout<UInt8>.size)
}
for i in 0..<length {
resultData.replaceBytes(in: NSRange(location: i, length: MemoryLayout<UInt8>.size),
withBytes: &keyBytes[i % keyLength],
length: MemoryLayout<UInt8>.size)
}
return resultData as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let dataLength = data.count / MemoryLayout<UInt8>.size
let keyLength = keyData.count / MemoryLayout<UInt8>.size
let dataBytes = data.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: dataLength))
}
let keyBytes = keyData.withUnsafeBytes {
[UInt8](UnsafeBufferPointer(start: $0, count: keyLength))
}
var resultBytes = [UInt8](repeating: 0, count: dataLength)
for i in 0..<dataLength {
resultBytes[i] = dataBytes[i] ^ keyBytes[i % keyLength]
}
return String(bytes: resultBytes, encoding: .utf8)!
}
}
```
let stringBytes = stringData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadlet keyBytes = keyData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadresultData.append(&stringBytes[i], length: MemoryLayout<UInt8>.size) // cannot pass immutable value as inout argument: 'stringBytes' is a 'let' constantwithBytes: &keyBytes[i % keyLength], // cannot pass immutable value as inout argument: 'keyBytes' is a 'let' constantlet dataBytes = data.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadlet keyBytes = keyData.withUnsafeBytes { // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` insteadprotocol 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var char = stringData[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<data.count {
var char = data[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var char = stringData[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<data.count {
var char = data[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let keyByte = keyData[i % keyData.count]
let stringByte = stringData[i]
let encryptedByte = stringByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data()
for i in 0..<data.count {
let keyByte = keyData[i % keyData.count]
let dataByte = data[i]
let decryptedByte = dataByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
let stringData = string.data(using: .utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let keyByte = keyData[i % keyData.count]
let stringByte = stringData[i]
let encryptedByte = stringByte ^ keyByte
encryptedData.append(encryptedByte)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data()
for i in 0..<data.count {
let keyByte = keyData[i % keyData.count]
let dataByte = data[i]
let decryptedByte = dataByte ^ keyByte
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let keyData = key.data(using: .utf8)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var char = stringData[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<data.count {
var char = data[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var char = stringData[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<data.count {
var char = data[i]
char ^= keyData[i % keyData.count]
result.append(&char, length: 1)
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let encryptedData = NSMutableData()
let length = stringData.count / MemoryLayout<UInt8>.size
stringData.withUnsafeBytes { (stringBytes: UnsafeRawBufferPointer) in
keyData.withUnsafeBytes { (keyBytes: UnsafeRawBufferPointer) in
encryptedData.append(stringBytes.baseAddress!, length: length)
for i in 0..<length {
encryptedData.replaceBytes(in: NSMakeRange(i, 1), withBytes: keyBytes.baseAddress!.advanced(by: i % keyBytes.count))
}
}
}
return encryptedData as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let decryptedData = NSMutableData()
let length = data.count / MemoryLayout<UInt8>.size
data.withUnsafeBytes { (dataBytes: UnsafeRawBufferPointer) in
keyData.withUnsafeBytes { (keyBytes: UnsafeRawBufferPointer) in
decryptedData.append(dataBytes.baseAddress!, length: length)
for i in 0..<length {
decryptedData.replaceBytes(in: NSMakeRange(i, 1), withBytes: keyBytes.baseAddress!.advanced(by: i % keyBytes.count))
}
}
}
return String(data: decryptedData as Data, 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)!
let stringData = string.data(using: .utf8)!
let encryptedData = NSMutableData()
let length = stringData.count / MemoryLayout<UInt8>.size
stringData.withUnsafeBytes { (stringBytes: UnsafeRawBufferPointer) in
keyData.withUnsafeBytes { (keyBytes: UnsafeRawBufferPointer) in
encryptedData.append(stringBytes.baseAddress!, length: length)
for i in 0..<length {
encryptedData.replaceBytes(in: NSMakeRange(i, 1), withBytes: keyBytes.baseAddress!.advanced(by: i % keyBytes.count))
}
}
}
return encryptedData as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let decryptedData = NSMutableData()
let length = data.count / MemoryLayout<UInt8>.size
data.withUnsafeBytes { (dataBytes: UnsafeRawBufferPointer) in
keyData.withUnsafeBytes { (keyBytes: UnsafeRawBufferPointer) in
decryptedData.append(dataBytes.baseAddress!, length: length)
for i in 0..<length {
decryptedData.replaceBytes(in: NSMakeRange(i, 1), withBytes: keyBytes.baseAddress!.advanced(by: i % keyBytes.count))
}
}
}
return String(data: decryptedData as Data, encoding: .utf8)!
}
}
```
// XCTAssertEqual failed: (Hello, SwiftEval!) is not equal to (passphrasepassphr)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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var keyByte = keyData[i % keyData.count]
var stringByte = stringData[i]
result.append(&keyByte, length: MemoryLayout<UInt8>.size)
result.append(&stringByte, length: MemoryLayout<UInt8>.size)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in stride(from: 0, to: data.count, by: 2) {
var keyByte = keyData[i % keyData.count]
var dataByte = data[i]
result.append(&dataByte, length: MemoryLayout<UInt8>.size)
}
return String(data: result as Data, 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)!
let stringData = string.data(using: .utf8)!
let result = NSMutableData()
for i in 0..<stringData.count {
var keyByte = keyData[i % keyData.count]
var stringByte = stringData[i]
result.append(&keyByte, length: MemoryLayout<UInt8>.size)
result.append(&stringByte, length: MemoryLayout<UInt8>.size)
}
return result as Data
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
let result = NSMutableData()
for i in stride(from: 0, to: data.count, by: 2) {
var keyByte = keyData[i % keyData.count]
var dataByte = data[i]
result.append(&dataByte, length: MemoryLayout<UInt8>.size)
}
return String(data: result as Data, encoding: .utf8)!
}
}
```
var keyByte = keyData[i % keyData.count] // initialization of variable 'keyByte' was never used; consider replacing with assignment to '_' or removing it // XCTAssertEqual failed: (Hello, SwiftEval!) is not equal to (passphrasepassphr)protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
let now = Date()
requests.append(now)
while requests.first?.addingTimeInterval(timeInterval) < now {
requests.removeFirst()
}
return requests.count <= maxRequests
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
let now = Date()
requests.append(now)
while requests.first?.addingTimeInterval(timeInterval) < now {
requests.removeFirst()
}
return requests.count <= maxRequests
}
}
```
while requests.first?.addingTimeInterval(timeInterval) < now { // value of optional type 'Date?' must be unwrapped to a value of type 'Date'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 requestsCount: Int
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
self.lastRequestDate = nil
}
func allowRequest() -> Bool {
let now = Date()
let timeSinceLastRequest = lastRequestDate.map { now.timeIntervalSince($0) } ?? timeInterval
if timeSinceLastRequest < timeInterval {
return false
}
lastRequestDate = now
requestsCount += 1
if requestsCount > maxRequests {
requestsCount = 0
}
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
self.lastRequestDate = nil
}
func allowRequest() -> Bool {
let now = Date()
let timeSinceLastRequest = lastRequestDate.map { now.timeIntervalSince($0) } ?? timeInterval
if timeSinceLastRequest < timeInterval {
return false
}
lastRequestDate = now
requestsCount += 1
if requestsCount > maxRequests {
requestsCount = 0
}
return true
}
}
```
Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertTrue failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount = 0
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let timeIntervalSinceLastRequest = lastRequestDate.map { now.timeIntervalSince($0) } ?? 0
let timeIntervalSinceLastRequestIsLessThanTimeInterval = timeIntervalSinceLastRequest < timeInterval
let requestsCountIsLessThanMaxRequests = requestsCount < maxRequests
guard timeIntervalSinceLastRequestIsLessThanTimeInterval || requestsCountIsLessThanMaxRequests else {
return false
}
lastRequestDate = now
requestsCount += 1
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount = 0
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let timeIntervalSinceLastRequest = lastRequestDate.map { now.timeIntervalSince($0) } ?? 0
let timeIntervalSinceLastRequestIsLessThanTimeInterval = timeIntervalSinceLastRequest < timeInterval
let requestsCountIsLessThanMaxRequests = requestsCount < maxRequests
guard timeIntervalSinceLastRequestIsLessThanTimeInterval || requestsCountIsLessThanMaxRequests else {
return false
}
lastRequestDate = now
requestsCount += 1
return true
}
}
```
Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertFalse failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
}
func allowRequest() -> Bool {
let now = Date()
if let lastRequestDate = lastRequestDate, now.timeIntervalSince(lastRequestDate) < timeInterval {
return false
}
if requestsCount >= maxRequests {
return false
}
requestsCount += 1
lastRequestDate = now
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
}
func allowRequest() -> Bool {
let now = Date()
if let lastRequestDate = lastRequestDate, now.timeIntervalSince(lastRequestDate) < timeInterval {
return false
}
if requestsCount >= maxRequests {
return false
}
requestsCount += 1
lastRequestDate = now
return true
}
}
```
Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertTrue failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
self.lastRequestDate = nil
}
func allowRequest() -> Bool {
let now = Date()
let timePassed = lastRequestDate.map { now.timeIntervalSince($0) } ?? 0
if timePassed > timeInterval {
lastRequestDate = now
requestsCount = 1
return true
} else if requestsCount < maxRequests {
requestsCount += 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 requestsCount: Int
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
self.lastRequestDate = nil
}
func allowRequest() -> Bool {
let now = Date()
let timePassed = lastRequestDate.map { now.timeIntervalSince($0) } ?? 0
if timePassed > timeInterval {
lastRequestDate = now
requestsCount = 1
return true
} else if requestsCount < maxRequests {
requestsCount += 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 6 // XCTAssertTrue failedprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
let now = Date()
requests = requests.filter { $0.addingTimeInterval(timeInterval) > now }
if requests.count >= maxRequests {
return false
}
requests.append(now)
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
let now = Date()
requests = requests.filter { $0.addingTimeInterval(timeInterval) > now }
if requests.count >= maxRequests {
return false
}
requests.append(now)
return true
}
}
```
Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int = 0
private var lastRequestTime: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let timeSinceLastRequest = lastRequestTime.map { now.timeIntervalSince($0) } ?? 0
if timeSinceLastRequest > timeInterval {
requestsCount = 0
}
guard requestsCount < maxRequests else { return false }
requestsCount += 1
lastRequestTime = now
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int = 0
private var lastRequestTime: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let timeSinceLastRequest = lastRequestTime.map { now.timeIntervalSince($0) } ?? 0
if timeSinceLastRequest > timeInterval {
requestsCount = 0
}
guard requestsCount < maxRequests else { return false }
requestsCount += 1
lastRequestTime = now
return true
}
}
```
Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int
private var lastRequestDate: Date
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
self.lastRequestDate = Date()
}
func allowRequest() -> Bool {
let currentDate = Date()
let timeIntervalSinceLastRequest = currentDate.timeIntervalSince(lastRequestDate)
if timeIntervalSinceLastRequest > self.timeInterval {
self.requestsCount = 0
}
if self.requestsCount < self.maxRequests {
self.requestsCount += 1
self.lastRequestDate = currentDate
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 requestsCount: Int
private var lastRequestDate: Date
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
self.lastRequestDate = Date()
}
func allowRequest() -> Bool {
let currentDate = Date()
let timeIntervalSinceLastRequest = currentDate.timeIntervalSince(lastRequestDate)
if timeIntervalSinceLastRequest > self.timeInterval {
self.requestsCount = 0
}
if self.requestsCount < self.maxRequests {
self.requestsCount += 1
self.lastRequestDate = currentDate
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 requestsCount: Int
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
}
func allowRequest() -> Bool {
let now = Date()
let timeIntervalSinceLastRequest = lastRequestDate.map { now.timeIntervalSince($0) } ?? 0
let canMakeRequest = timeIntervalSinceLastRequest >= self.timeInterval
|| requestsCount < maxRequests
if canMakeRequest {
requestsCount += 1
lastRequestDate = now
}
return canMakeRequest
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount: Int
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requestsCount = 0
}
func allowRequest() -> Bool {
let now = Date()
let timeIntervalSinceLastRequest = lastRequestDate.map { now.timeIntervalSince($0) } ?? 0
let canMakeRequest = timeIntervalSinceLastRequest >= self.timeInterval
|| requestsCount < maxRequests
if canMakeRequest {
requestsCount += 1
lastRequestDate = now
}
return canMakeRequest
}
}
```
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 requestsCount = 0
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let timePassed = lastRequestDate.map { now.timeIntervalSince($0) } ?? 0
let canResetCounter = timePassed > timeInterval
if canResetCounter {
requestsCount = 0
}
guard requestsCount < maxRequests else { return false }
requestsCount += 1
lastRequestDate = now
return true
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestsCount = 0
private var lastRequestDate: Date?
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
let timePassed = lastRequestDate.map { now.timeIntervalSince($0) } ?? 0
let canResetCounter = timePassed > timeInterval
if canResetCounter {
requestsCount = 0
}
guard requestsCount < maxRequests else { return false }
requestsCount += 1
lastRequestDate = now
return true
}
}
```
Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock: NSLock
required init(value: Int) {
self.value = value
self.lock = NSLock()
}
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
self.lock = NSLock()
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
lock.lock()
defer {
lock.unlock()
}
return value
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let queue: DispatchQueue
required init(value: Int) {
self.value = value
self.queue = DispatchQueue(label: "ThreadSafeCounterQueue")
}
func increment() {
queue.sync {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
self.value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let queue: DispatchQueue
required init(value: Int) {
self.value = value
self.queue = DispatchQueue(label: "ThreadSafeCounterQueue")
}
func increment() {
queue.sync {
self.value += 1
}
}
func currentValue() -> Int {
queue.sync {
self.value
}
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let lock = NSLock()
required init(value: Int) {
self._value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
_value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return _value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let lock = NSLock()
required init(value: Int) {
self._value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
_value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return _value
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private let lock = NSLock()
private var value: Int
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 let lock = NSLock()
private var value: Int
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
_value = value
queue = DispatchQueue(label: "ThreadSafeCounterQueue")
}
func increment() {
queue.sync {
_value += 1
}
}
func currentValue() -> Int {
return queue.sync {
_value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
_value = value
queue = DispatchQueue(label: "ThreadSafeCounterQueue")
}
func increment() {
queue.sync {
_value += 1
}
}
func currentValue() -> Int {
return queue.sync {
_value
}
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
_value = value
queue = DispatchQueue(label: "com.ThreadSafeCounter.queue")
}
func increment() {
queue.sync {
_value += 1
}
}
func currentValue() -> Int {
return queue.sync {
_value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
_value = value
queue = DispatchQueue(label: "com.ThreadSafeCounter.queue")
}
func increment() {
queue.sync {
_value += 1
}
}
func currentValue() -> Int {
return queue.sync {
_value
}
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
self._value = value
self.queue = DispatchQueue(label: "ThreadSafeCounterQueue", attributes: .concurrent)
}
func increment() {
queue.async(flags: .barrier) {
self._value += 1
}
}
func currentValue() -> Int {
var result = 0
queue.sync {
result = self._value
}
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
self._value = value
self.queue = DispatchQueue(label: "ThreadSafeCounterQueue", attributes: .concurrent)
}
func increment() {
queue.async(flags: .barrier) {
self._value += 1
}
}
func currentValue() -> Int {
var result = 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
required init(value: Int) {
self._value = value
self.queue = DispatchQueue(label: "ThreadSafeCounterQueue")
}
func increment() {
queue.sync {
self._value += 1
}
}
func currentValue() -> Int {
return queue.sync {
return self._value
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
self._value = value
self.queue = DispatchQueue(label: "ThreadSafeCounterQueue")
}
func increment() {
queue.sync {
self._value += 1
}
}
func currentValue() -> Int {
return queue.sync {
return self._value
}
}
}
```
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
self._value = value
self.queue = DispatchQueue(label: "ThreadSafeCounterQueue")
}
func increment() {
queue.sync {
self._value += 1
}
}
func currentValue() -> Int {
var value: Int!
queue.sync {
value = self._value
}
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var _value: Int
private let queue: DispatchQueue
required init(value: Int) {
self._value = value
self.queue = DispatchQueue(label: "ThreadSafeCounterQueue")
}
func increment() {
queue.sync {
self._value += 1
}
}
func currentValue() -> Int {
var value: Int!
queue.sync {
value = self._value
}
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 {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
let pipeline = Pipeline(value: "Hello")
.pipe { $0 + " " }
.pipe { $0 + "World" }
.execute()
print(pipeline)
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
var value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
var value: T
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
return value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
let pipeline = Pipeline(value: 1)
.pipe { $0 + 1 }
.pipe { $0 * 2 }
.pipe { String($0) }
.execute()
print(pipeline) // 4
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
let pipeline = Pipeline(value: 1)
.pipe { $0 + 1 }
.pipe { $0 * 2 }
.pipe { String($0) }
.execute()
print(pipeline) // 4
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
let pipeline = Pipeline(value: 1)
.pipe { $0 + 1 }
.pipe { $0 * 2 }
.pipe { String($0) }
.execute()
print(pipeline) // 4
```
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output>: PipelineProtocol {
private let value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
return value
}
}
```
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get {
return self.value
}
set {
self.value = newValue
self.observers.forEach { $0.value(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
self.observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
self.observers[observer] = nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get {
return self.value
}
set {
self.value = newValue
self.observers.forEach { $0.value(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
self.observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
self.observers[observer] = nil
}
}
```
private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'var value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>{
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var value: Value {
get {
return value
}
set {
self.value = newValue
observers.forEach { $0.value(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>{
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
init(value: Value) {
self.value = value
}
var value: Value {
get {
return value
}
set {
self.value = newValue
observers.forEach { $0.value(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```
var value: Value { // invalid redeclaration of 'value'observable.value = 10 // 'value' is inaccessible due to 'private' protection levelobservable.value = 20 // 'value' is inaccessible due to 'private' protection levelobservable.value = 30 // 'value' is inaccessible due to 'private' protection levelprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get {
return self.value
}
set {
self.value = newValue
self.observers.forEach { $0.value(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
self.observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
self.observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
var value: Value {
get {
return self.value
}
set {
self.value = newValue
self.observers.forEach { $0.value(newValue) }
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
self.observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
self.observers.removeValue(forKey: observer)
}
}
```
private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'var value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>{
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get { _value }
set {
_value = newValue
observers.values.forEach { $0(newValue) }
}
}
init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>{
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get { _value }
set {
_value = newValue
observers.values.forEach { $0(newValue) }
}
}
init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>{
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get { _value }
set {
_value = newValue
observers.values.forEach { $0(newValue) }
}
}
init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>{
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get { _value }
set {
_value = newValue
observers.values.forEach { $0(newValue) }
}
}
init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
extension ObservableProperty: ObservablePropertyProtocol { }
```
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get { _value }
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get { _value }
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers[observer] = nil
}
}
```
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### 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 _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### 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 _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### 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 _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
required init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>{
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>{
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
observers.forEach { $0.value(newValue) }
}
}
init(value: Value) {
_value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
extension ObservableProperty: ObservablePropertyProtocol { }
```
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
assert(range.contains(wrappedValue))
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value..<value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue) (clamped to \(range))"
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), value..<value)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
assert(range.contains(wrappedValue))
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value..<value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue) (clamped to \(range))"
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), value..<value)
}
}
```
self.init(wrappedValue: value, value..<value) // cannot convert value of type 'Range<Value>' to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(floatLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Clamped<Value>.FloatLiteralType' (aka 'Value.FloatLiteralType') conform to 'Comparable'self.init(wrappedValue: Value(floatLiteral: value), value..<value) // cannot convert value of type 'Range<Clamped<Value>.FloatLiteralType>' (aka 'Range<Value.FloatLiteralType>') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(integerLiteral: value), value..<value) // cannot convert value of type 'Range<Clamped<Value>.IntegerLiteralType>' (aka 'Range<Value.IntegerLiteralType>') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(integerLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Clamped<Value>.IntegerLiteralType' (aka 'Value.IntegerLiteralType') conform to 'Comparable'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value..<value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue) (clamped 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<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value..<value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue) (clamped to \(range))"
}
}
```
self.init(wrappedValue: value, value..<value) // cannot convert value of type 'Range<Value>' to expected argument type 'ClosedRange<Value>'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = range.clamp(wrappedValue)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue)"
}
}
extension Clamped: CustomDebugStringConvertible {
var debugDescription: String {
"\(wrappedValue)"
}
}
extension Clamped: CustomReflectable {
var customMirror: Mirror {
Mirror(reflecting: wrappedValue)
}
}
extension Clamped: CustomPlaygroundDisplayConvertible {
var playgroundDescription: Any {
wrappedValue
}
}
extension Clamped: CaseIterable where Value: CaseIterable {
typealias AllCases = Value.AllCases
}
extension Clamped: Identifiable where Value: Identifiable {
var id: Value.ID {
wrappedValue.id
}
}
extension Clamped: AdditiveArithmetic where Value: AdditiveArithmetic {
static var zero: Clamped<Value> {
Clamped(wrappedValue: .zero, range)
}
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range)
}
static func += (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs + rhs
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range)
}
static func -= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs - rhs
}
}
extension Clamped: Numeric where Value: Numeric {
init?<T>(exactly source: T) where T : BinaryInteger {
guard let value = Value(exactly: source) else {
return nil
}
self.init(wrappedValue: value, range)
}
var magnitude: Value.Magnitude {
wrappedValue.magnitude
}
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range)
}
static func *= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs * rhs
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = range.clamp(wrappedValue)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue)"
}
}
extension Clamped: CustomDebugStringConvertible {
var debugDescription: String {
"\(wrappedValue)"
}
}
extension Clamped: CustomReflectable {
var customMirror: Mirror {
Mirror(reflecting: wrappedValue)
}
}
extension Clamped: CustomPlaygroundDisplayConvertible {
var playgroundDescription: Any {
wrappedValue
}
}
extension Clamped: CaseIterable where Value: CaseIterable {
typealias AllCases = Value.AllCases
}
extension Clamped: Identifiable where Value: Identifiable {
var id: Value.ID {
wrappedValue.id
}
}
extension Clamped: AdditiveArithmetic where Value: AdditiveArithmetic {
static var zero: Clamped<Value> {
Clamped(wrappedValue: .zero, range)
}
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range)
}
static func += (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs + rhs
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range)
}
static func -= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs - rhs
}
}
extension Clamped: Numeric where Value: Numeric {
init?<T>(exactly source: T) where T : BinaryInteger {
guard let value = Value(exactly: source) else {
return nil
}
self.init(wrappedValue: value, range)
}
var magnitude: Value.Magnitude {
wrappedValue.magnitude
}
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range)
}
static func *= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs * rhs
}
}
extension Clamped: SignedNumeric where Value: SignedNumeric {
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value>self.wrappedValue = range.clamp(wrappedValue) // value of type 'ClosedRange<Value>' has no member 'clamp'extension Clamped: CaseIterable where Value: CaseIterable { // 'CaseIterable' requires the types 'Clamped<Value>' and 'Value' be equivalentextension Clamped: CaseIterable where Value: CaseIterable { // type 'Clamped<Value>' does not conform to protocol 'CaseIterable'Clamped(wrappedValue: .zero, range) // instance member 'range' cannot be used on type 'Clamped<Value>'Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'extension Clamped: Numeric where Value: Numeric { // type 'Clamped<Value>' does not conform to protocol 'ExpressibleByIntegerLiteral'extension Clamped: Numeric where Value: Numeric { // conditional conformance of type 'Clamped<Value>' to protocol 'Numeric' does not imply conformance to inherited protocol 'ExpressibleByIntegerLiteral'Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue)"
}
}
extension Clamped: Equatable where Value: Equatable {
static func == (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue == rhs.wrappedValue
}
}
extension Clamped: Hashable where Value: Hashable {
func hash(into hasher: inout Hasher) {
hasher.combine(wrappedValue)
}
}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: Value.FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), range)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: Value.IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), range)
}
}
extension Clamped: ExpressibleByStringLiteral where Value: ExpressibleByStringLiteral {
typealias StringLiteralType = Value.StringLiteralType
init(stringLiteral value: Value.StringLiteralType) {
self.init(wrappedValue: Value(stringLiteral: value), range)
}
}
extension Clamped: ExpressibleByExtendedGraphemeClusterLiteral where Value: ExpressibleByExtendedGraphemeClusterLiteral {
typealias ExtendedGraphemeClusterLiteralType = Value.ExtendedGraphemeClusterLiteralType
init(extendedGraphemeClusterLiteral value: Value.ExtendedGraphemeClusterLiteralType) {
self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), range)
}
}
extension Clamped: ExpressibleByUnicodeScalarLiteral where Value: ExpressibleByUnicodeScalarLiteral {
typealias UnicodeScalarLiteralType = Value.UnicodeScalarLiteralType
init(unicodeScalarLiteral value: Value.UnicodeScalarLiteralType) {
self.init(wrappedValue: Value(unicodeScalarLiteral: value), range)
}
}
extension Clamped: ExpressibleByStringInterpolation where Value: ExpressibleByStringInterpolation {
typealias StringInterpolation = Value.StringInterpolation
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue)"
}
}
extension Clamped: Equatable where Value: Equatable {
static func == (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue == rhs.wrappedValue
}
}
extension Clamped: Hashable where Value: Hashable {
func hash(into hasher: inout Hasher) {
hasher.combine(wrappedValue)
}
}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: Value.FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), range)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: Value.IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), range)
}
}
extension Clamped: ExpressibleByStringLiteral where Value: ExpressibleByStringLiteral {
typealias StringLiteralType = Value.StringLiteralType
init(stringLiteral value: Value.StringLiteralType) {
self.init(wrappedValue: Value(stringLiteral: value), range)
}
}
extension Clamped: ExpressibleByExtendedGraphemeClusterLiteral where Value: ExpressibleByExtendedGraphemeClusterLiteral {
typealias ExtendedGraphemeClusterLiteralType = Value.ExtendedGraphemeClusterLiteralType
init(extendedGraphemeClusterLiteral value: Value.ExtendedGraphemeClusterLiteralType) {
self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), range)
}
}
extension Clamped: ExpressibleByUnicodeScalarLiteral where Value: ExpressibleByUnicodeScalarLiteral {
typealias UnicodeScalarLiteralType = Value.UnicodeScalarLiteralType
init(unicodeScalarLiteral value: Value.UnicodeScalarLiteralType) {
self.init(wrappedValue: Value(unicodeScalarLiteral: value), range)
}
}
extension Clamped: ExpressibleByStringInterpolation where Value: ExpressibleByStringInterpolation {
typealias StringInterpolation = Value.StringInterpolation
}
extension Clamped: AdditiveArithmetic where Value: AdditiveArithmetic {
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValueextension Clamped: ExpressibleByStringInterpolation where Value: ExpressibleByStringInterpolation { // type 'Clamped<Value>' does not conform to protocol 'ExpressibleByStringInterpolation'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value..<value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
init(floatLiteral value: Value.FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
init(integerLiteral value: Value.IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), value..<value)
}
}
extension Clamped: SignedNumeric where Value: SignedNumeric {
init?<T>(exactly source: T) where T : BinaryInteger {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, value..<value)
}
var magnitude: Value.Magnitude { wrappedValue.magnitude }
init?<T>(exactly source: T) where T : BinaryFloatingPoint {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, value..<value)
}
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound)
}
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound)
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound)
}
}
extension Clamped: Strideable where Value: Strideable {
func distance(to other: Clamped<Value>) -> Value.Stride {
wrappedValue.distance(to: other.wrappedValue)
}
func advanced(by n: Value.Stride) -> Clamped<Value> {
Clamped(wrappedValue: wrappedValue.advanced(by: n), range)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value..<value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
init(floatLiteral value: Value.FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
init(integerLiteral value: Value.IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), value..<value)
}
}
extension Clamped: SignedNumeric where Value: SignedNumeric {
init?<T>(exactly source: T) where T : BinaryInteger {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, value..<value)
}
var magnitude: Value.Magnitude { wrappedValue.magnitude }
init?<T>(exactly source: T) where T : BinaryFloatingPoint {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, value..<value)
}
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound)
}
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound)
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound)
}
}
extension Clamped: Strideable where Value: Strideable {
func distance(to other: Clamped<Value>) -> Value.Stride {
wrappedValue.distance(to: other.wrappedValue)
}
func advanced(by n: Value.Stride) -> Clamped<Value> {
Clamped(wrappedValue: wrappedValue.advanced(by: n), range)
}
}
```
self.init(wrappedValue: value, value..<value) // cannot convert value of type 'Range<Value>' to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(floatLiteral: value), value..<value) // cannot convert value of type 'Range<Value.FloatLiteralType>' to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(floatLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Value.FloatLiteralType' conform to 'Comparable'self.init(wrappedValue: Value(integerLiteral: value), value..<value) // cannot convert value of type 'Range<Value.IntegerLiteralType>' to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(integerLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Value.IntegerLiteralType' conform to 'Comparable'extension Clamped: SignedNumeric where Value: SignedNumeric { // conditional conformance of type 'Clamped<Value>' to protocol 'SignedNumeric' does not imply conformance to inherited protocol 'Numeric'extension Clamped: SignedNumeric where Value: SignedNumeric { // conditional conformance of type 'Clamped<Value>' to protocol 'SignedNumeric' does not imply conformance to inherited protocol 'AdditiveArithmetic'self.init(wrappedValue: value, value..<value) // cannot convert value of type 'Range<Value>' to expected argument type 'ClosedRange<Value>'guard let value = Value(exactly: source) else { return nil } // initializer 'init(exactly:)' requires that 'T' conform to 'BinaryInteger'self.init(wrappedValue: value, value..<value) // cannot convert value of type 'Range<Self>' to expected argument type 'ClosedRange<Value>'Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound) // cannot convert value of type 'Range<Value>' to expected argument type 'ClosedRange<Value>'Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound) // cannot convert value of type 'Range<Value>' to expected argument type 'ClosedRange<Value>'Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, lhs.range.lowerBound..<rhs.range.upperBound) // cannot convert value of type 'Range<Value>' to expected argument type 'ClosedRange<Value>'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue)"
}
}
extension Clamped: CustomDebugStringConvertible {
var debugDescription: String {
"\(wrappedValue) (clamped to \(range))"
}
}
extension Clamped: Equatable where Value: Equatable {
static func == (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue == rhs.wrappedValue
}
}
extension Clamped: Hashable where Value: Hashable {
func hash(into hasher: inout Hasher) {
hasher.combine(wrappedValue)
}
}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), value)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), value)
}
}
extension Clamped: ExpressibleByStringLiteral where Value: ExpressibleByStringLiteral {
typealias StringLiteralType = Value.StringLiteralType
init(stringLiteral value: StringLiteralType) {
self.init(wrappedValue: Value(stringLiteral: value), value)
}
}
extension Clamped: ExpressibleByExtendedGraphemeClusterLiteral where Value: ExpressibleByExtendedGraphemeClusterLiteral {
typealias ExtendedGraphemeClusterLiteralType = Value.ExtendedGraphemeClusterLiteralType
init(extendedGraphemeClusterLiteral value: ExtendedGraphemeClusterLiteralType) {
self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), value)
}
}
extension Clamped: ExpressibleByUnicodeScalarLiteral where Value: ExpressibleByUnicodeScalarLiteral {
typealias UnicodeScalarLiteralType = Value.UnicodeScalarLiteralType
init(unicodeScalarLiteral value: UnicodeScalarLiteralType) {
self.init(wrappedValue: Value(unicodeScalarLiteral: value), value)
}
}
extension Clamped: ExpressibleByStringInterpolation where Value: ExpressibleByStringInterpolation {
typealias StringInterpolation = Value.StringInterpolation
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue)"
}
}
extension Clamped: CustomDebugStringConvertible {
var debugDescription: String {
"\(wrappedValue) (clamped to \(range))"
}
}
extension Clamped: Equatable where Value: Equatable {
static func == (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue == rhs.wrappedValue
}
}
extension Clamped: Hashable where Value: Hashable {
func hash(into hasher: inout Hasher) {
hasher.combine(wrappedValue)
}
}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), value)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), value)
}
}
extension Clamped: ExpressibleByStringLiteral where Value: ExpressibleByStringLiteral {
typealias StringLiteralType = Value.StringLiteralType
init(stringLiteral value: StringLiteralType) {
self.init(wrappedValue: Value(stringLiteral: value), value)
}
}
extension Clamped: ExpressibleByExtendedGraphemeClusterLiteral where Value: ExpressibleByExtendedGraphemeClusterLiteral {
typealias ExtendedGraphemeClusterLiteralType = Value.ExtendedGraphemeClusterLiteralType
init(extendedGraphemeClusterLiteral value: ExtendedGraphemeClusterLiteralType) {
self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), value)
}
}
extension Clamped: ExpressibleByUnicodeScalarLiteral where Value: ExpressibleByUnicodeScalarLiteral {
typealias UnicodeScalarLiteralType = Value.UnicodeScalarLiteralType
init(unicodeScalarLiteral value: UnicodeScalarLiteralType) {
self.init(wrappedValue: Value(unicodeScalarLiteral: value), value)
}
}
extension Clamped: ExpressibleByStringInterpolation where Value: ExpressibleByStringInterpolation {
typealias StringInterpolation = Value.StringInterpolation
}
extension Clamped: AdditiveArithmetic where Value: AdditiveArithmetic {
static func + (lhs: Clamped<Value>, rhs:self.init(wrappedValue: value, value) // cannot convert value of type 'Value' to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(floatLiteral: value), value) // cannot convert value of type 'Clamped<Value>.FloatLiteralType' (aka 'Value.FloatLiteralType') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(integerLiteral: value), value) // cannot convert value of type 'Clamped<Value>.IntegerLiteralType' (aka 'Value.IntegerLiteralType') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(stringLiteral: value), value) // cannot convert value of type 'Clamped<Value>.StringLiteralType' (aka 'Value.StringLiteralType') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), value) // cannot convert value of type 'Clamped<Value>.ExtendedGraphemeClusterLiteralType' (aka 'Value.ExtendedGraphemeClusterLiteralType') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(unicodeScalarLiteral: value), value) // cannot convert value of type 'Clamped<Value>.UnicodeScalarLiteralType' (aka 'Value.UnicodeScalarLiteralType') to expected argument type 'ClosedRange<Value>'extension Clamped: ExpressibleByStringInterpolation where Value: ExpressibleByStringInterpolation { // type 'Clamped<Value>' does not conform to protocol 'ExpressibleByStringInterpolation'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = range.clamp(wrappedValue)
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: CustomStringConvertible {
var description: String {
String(describing: wrappedValue)
}
}
extension Clamped: CustomDebugStringConvertible {
var debugDescription: String {
String(reflecting: wrappedValue)
}
}
extension Clamped: CustomReflectable {
var customMirror: Mirror {
Mirror(reflecting: wrappedValue)
}
}
extension Clamped: CustomPlaygroundDisplayConvertible {
var playgroundDescription: Any {
wrappedValue
}
}
extension Clamped: CaseIterable where Value: CaseIterable {
typealias AllCases = Value.AllCases
static var allCases: Value.AllCases {
Value.allCases
}
}
extension Clamped: Identifiable where Value: Identifiable {
var id: Value.ID {
wrappedValue.id
}
}
extension Clamped: AdditiveArithmetic where Value: AdditiveArithmetic {
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range)
}
static func += (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs + rhs
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range)
}
static func -= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs - rhs
}
}
extension Clamped: Numeric where Value: Numeric {
init?<T>(exactly source: T) where T: BinaryInteger {
guard let value = Value(exactly: source) else {
return nil
}
self.init(wrappedValue: value, range)
}
var magnitude: Value.Magnitude {
wrappedValue.magnitude
}
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range)
}
static func *= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs * rhs
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = range.clamp(wrappedValue)
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: CustomStringConvertible {
var description: String {
String(describing: wrappedValue)
}
}
extension Clamped: CustomDebugStringConvertible {
var debugDescription: String {
String(reflecting: wrappedValue)
}
}
extension Clamped: CustomReflectable {
var customMirror: Mirror {
Mirror(reflecting: wrappedValue)
}
}
extension Clamped: CustomPlaygroundDisplayConvertible {
var playgroundDescription: Any {
wrappedValue
}
}
extension Clamped: CaseIterable where Value: CaseIterable {
typealias AllCases = Value.AllCases
static var allCases: Value.AllCases {
Value.allCases
}
}
extension Clamped: Identifiable where Value: Identifiable {
var id: Value.ID {
wrappedValue.id
}
}
extension Clamped: AdditiveArithmetic where Value: AdditiveArithmetic {
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range)
}
static func += (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs + rhs
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range)
}
static func -= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs - rhs
}
}
extension Clamped: Numeric where Value: Numeric {
init?<T>(exactly source: T) where T: BinaryInteger {
guard let value = Value(exactly: source) else {
return nil
}
self.init(wrappedValue: value, range)
}
var magnitude: Value.Magnitude {
wrappedValue.magnitude
}
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range)
}
static func *= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs * rhs
}
}
extension Clamped: BinaryInteger where Value: BinaryInteger {
var nonzeroBitCount: Int {
wrappedValue.nonzeroBitCount
}
static func / (lhs: Clamped<Value>,self.wrappedValue = range.clamp(wrappedValue) // value of type 'ClosedRange<Value>' has no member 'clamp'extension Clamped: CaseIterable where Value: CaseIterable { // type 'Clamped<Value>' does not conform to protocol 'CaseIterable'extension Clamped: CaseIterable where Value: CaseIterable { // 'CaseIterable' requires the types 'Clamped<Value>' and 'Value' be equivalentextension Clamped: AdditiveArithmetic where Value: AdditiveArithmetic { // type 'Clamped<Value>' does not conform to protocol 'AdditiveArithmetic'Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'extension Clamped: Numeric where Value: Numeric { // conditional conformance of type 'Clamped<Value>' to protocol 'Numeric' does not imply conformance to inherited protocol 'ExpressibleByIntegerLiteral'extension Clamped: Numeric where Value: Numeric { // type 'Clamped<Value>' does not conform to protocol 'ExpressibleByIntegerLiteral'Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: Value.FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), range)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: Value.IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), range)
}
}
extension Clamped: SignedNumeric where Value: SignedNumeric {
init?<T>(exactly source: T) where T : BinaryInteger {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, range)
}
var magnitude: Value.Magnitude { wrappedValue.magnitude }
init?<T>(exactly source: T) where T : FloatingPoint {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, range)
}
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range)
}
static func *= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs.wrappedValue *= rhs.wrappedValue
}
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range)
}
static func += (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs.wrappedValue += rhs.wrappedValue
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range)
}
static func -= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs.wrappedValue -= rhs.wrappedValue
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: Value.FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), range)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: Value.IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), range)
}
}
extension Clamped: SignedNumeric where Value: SignedNumeric {
init?<T>(exactly source: T) where T : BinaryInteger {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, range)
}
var magnitude: Value.Magnitude { wrappedValue.magnitude }
init?<T>(exactly source: T) where T : FloatingPoint {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, range)
}
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range)
}
static func *= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs.wrappedValue *= rhs.wrappedValue
}
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range)
}
static func += (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs.wrappedValue += rhs.wrappedValue
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range)
}
static func -= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs.wrappedValue -= rhs.wrappedValue
}
}
extension Clamped: Strideable where Value: Strideable {
func distance(to other: Clamped<Value>) -> Value.Stride {
wrappedValue.distance(extension Clamped: SignedNumeric where Value: SignedNumeric { // conditional conformance of type 'Clamped<Value>' to protocol 'SignedNumeric' does not imply conformance to inherited protocol 'Numeric'extension Clamped: SignedNumeric where Value: SignedNumeric { // conditional conformance of type 'Clamped<Value>' to protocol 'SignedNumeric' does not imply conformance to inherited protocol 'AdditiveArithmetic'guard let value = Value(exactly: source) else { return nil } // initializer 'init(exactly:)' requires that 'T' conform to 'BinaryInteger'Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value..<value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue) (clamped to \(range))"
}
}
extension Clamped: Equatable where Value: Equatable {
static func == (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue == rhs.wrappedValue
}
}
extension Clamped: Hashable where Value: Hashable {
func hash(into hasher: inout Hasher) {
hasher.combine(wrappedValue)
}
}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByStringLiteral where Value: ExpressibleByStringLiteral {
typealias StringLiteralType = Value.StringLiteralType
init(stringLiteral value: StringLiteralType) {
self.init(wrappedValue: Value(stringLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByExtendedGraphemeClusterLiteral where Value: ExpressibleByExtendedGraphemeClusterLiteral {
typealias ExtendedGraphemeClusterLiteralType = Value.ExtendedGraphemeClusterLiteralType
init(extendedGraphemeClusterLiteral value: ExtendedGraphemeClusterLiteralType) {
self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByUnicodeScalarLiteral where Value: ExpressibleByUnicodeScalarLiteral {
typealias UnicodeScalarLiteralType = Value.UnicodeScalarLiteralType
init(unicodeScalarLiteral value: UnicodeScalarLiteralType) {
self.init(wrappedValue: Value(unicodeScalarLiteral: value), value..<value)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, value..<value)
}
}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
"\(wrappedValue) (clamped to \(range))"
}
}
extension Clamped: Equatable where Value: Equatable {
static func == (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue == rhs.wrappedValue
}
}
extension Clamped: Hashable where Value: Hashable {
func hash(into hasher: inout Hasher) {
hasher.combine(wrappedValue)
}
}
extension Clamped: Comparable where Value: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral where Value: ExpressibleByFloatLiteral {
typealias FloatLiteralType = Value.FloatLiteralType
init(floatLiteral value: FloatLiteralType) {
self.init(wrappedValue: Value(floatLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByIntegerLiteral where Value: ExpressibleByIntegerLiteral {
typealias IntegerLiteralType = Value.IntegerLiteralType
init(integerLiteral value: IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByStringLiteral where Value: ExpressibleByStringLiteral {
typealias StringLiteralType = Value.StringLiteralType
init(stringLiteral value: StringLiteralType) {
self.init(wrappedValue: Value(stringLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByExtendedGraphemeClusterLiteral where Value: ExpressibleByExtendedGraphemeClusterLiteral {
typealias ExtendedGraphemeClusterLiteralType = Value.ExtendedGraphemeClusterLiteralType
init(extendedGraphemeClusterLiteral value: ExtendedGraphemeClusterLiteralType) {
self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), value..<value)
}
}
extension Clamped: ExpressibleByUnicodeScalarLiteral where Value: ExpressibleByUnicodeScalarLiteral {
typealias UnicodeScalarLiteralType = Value.UnicodeScalarLiteralType
init(unicodeScalarLiteral value: UnicodeScalarLiteralType) {
self.init(wrappedValue: Value(unicodeScalarLiteral: value), value..<value)
}
}
```
self.init(wrappedValue: value, value..<value) // cannot convert value of type 'Range<Value>' to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(floatLiteral: value), value..<value) // cannot convert value of type 'Range<Clamped<Value>.FloatLiteralType>' (aka 'Range<Value.FloatLiteralType>') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(floatLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Clamped<Value>.FloatLiteralType' (aka 'Value.FloatLiteralType') conform to 'Comparable'self.init(wrappedValue: Value(integerLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Clamped<Value>.IntegerLiteralType' (aka 'Value.IntegerLiteralType') conform to 'Comparable'self.init(wrappedValue: Value(integerLiteral: value), value..<value) // cannot convert value of type 'Range<Clamped<Value>.IntegerLiteralType>' (aka 'Range<Value.IntegerLiteralType>') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(stringLiteral: value), value..<value) // cannot convert value of type 'Range<Clamped<Value>.StringLiteralType>' (aka 'Range<Value.StringLiteralType>') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(stringLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Clamped<Value>.StringLiteralType' (aka 'Value.StringLiteralType') conform to 'Comparable'self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Clamped<Value>.ExtendedGraphemeClusterLiteralType' (aka 'Value.ExtendedGraphemeClusterLiteralType') conform to 'Comparable'self.init(wrappedValue: Value(extendedGraphemeClusterLiteral: value), value..<value) // cannot convert value of type 'Range<Clamped<Value>.ExtendedGraphemeClusterLiteralType>' (aka 'Range<Value.ExtendedGraphemeClusterLiteralType>') to expected argument type 'ClosedRange<Value>'self.init(wrappedValue: Value(unicodeScalarLiteral: value), value..<value) // referencing operator function '..<' on 'Comparable' requires that 'Clamped<Value>.UnicodeScalarLiteralType' (aka 'Value.UnicodeScalarLiteralType') conform to 'Comparable'self.init(wrappedValue: Value(unicodeScalarLiteral: value), value..<value) // cannot convert value of type 'Range<Clamped<Value>.UnicodeScalarLiteralType>' (aka 'Range<Value.UnicodeScalarLiteralType>') to expected argument type 'ClosedRange<Value>'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = range.clamped(wrappedValue)
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
String(describing: wrappedValue)
}
}
extension Clamped: CustomDebugStringConvertible {
var debugDescription: String {
String(reflecting: wrappedValue)
}
}
extension Clamped: CustomPlaygroundDisplayConvertible {
var playgroundDescription: Any {
wrappedValue
}
}
extension Clamped: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral {
init(floatLiteral value: Value) {
self.init(wrappedValue: value, range)
}
}
extension Clamped: ExpressibleByIntegerLiteral {
init(integerLiteral value: Value) {
self.init(wrappedValue: value, range)
}
}
extension Clamped: AdditiveArithmetic {
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range)
}
static func += (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs + rhs
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range)
}
static func -= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs - rhs
}
}
extension Clamped: Numeric {
init?<T>(exactly source: T) where T : BinaryInteger {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, range)
}
var magnitude: Value { wrappedValue.magnitude }
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range)
}
static func *= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs * rhs
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
var wrappedValue: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.wrappedValue = range.clamped(wrappedValue)
}
var projectedValue: Clamped<Value> {
get { self }
set { self = newValue }
}
}
extension Clamped: Equatable where Value: Equatable {}
extension Clamped: Hashable where Value: Hashable {}
extension Clamped: Encodable where Value: Encodable {
func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(wrappedValue)
}
}
extension Clamped: Decodable where Value: Decodable {
init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let value = try container.decode(Value.self)
self.init(wrappedValue: value, range)
}
}
extension Clamped: CustomStringConvertible {
var description: String {
String(describing: wrappedValue)
}
}
extension Clamped: CustomDebugStringConvertible {
var debugDescription: String {
String(reflecting: wrappedValue)
}
}
extension Clamped: CustomPlaygroundDisplayConvertible {
var playgroundDescription: Any {
wrappedValue
}
}
extension Clamped: Comparable {
static func < (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Bool {
lhs.wrappedValue < rhs.wrappedValue
}
}
extension Clamped: ExpressibleByFloatLiteral {
init(floatLiteral value: Value) {
self.init(wrappedValue: value, range)
}
}
extension Clamped: ExpressibleByIntegerLiteral {
init(integerLiteral value: Value) {
self.init(wrappedValue: value, range)
}
}
extension Clamped: AdditiveArithmetic {
static func + (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range)
}
static func += (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs + rhs
}
static func - (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range)
}
static func -= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs - rhs
}
}
extension Clamped: Numeric {
init?<T>(exactly source: T) where T : BinaryInteger {
guard let value = Value(exactly: source) else { return nil }
self.init(wrappedValue: value, range)
}
var magnitude: Value { wrappedValue.magnitude }
static func * (lhs: Clamped<Value>, rhs: Clamped<Value>) -> Clamped<Value> {
Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range)
}
static func *= (lhs: inout Clamped<Value>, rhs: Clamped<Value>) {
lhs = lhs * rhs
}
}
extension Clamped: SignedNumeric where Value: SignedNumeric {
init(integerLiteral value: Value.IntegerLiteralType) {
self.init(wrappedValue: Value(integerLiteral: value), range)
}
var negated: Clamped<Value> {
Clamped(wrappedValue: -wraself.wrappedValue = range.clamped(wrappedValue) // cannot assign value of type 'ClosedRange<Value>' to type 'Value'self.wrappedValue = range.clamped(wrappedValue) // cannot convert value of type 'Value' to expected argument type 'ClosedRange<Value>'self.wrappedValue = range.clamped(wrappedValue) // missing argument label 'to:' in callextension Clamped: ExpressibleByFloatLiteral { // type 'Clamped<Value>' does not conform to protocol 'ExpressibleByFloatLiteral'extension Clamped: ExpressibleByIntegerLiteral { // type 'Clamped<Value>' does not conform to protocol 'ExpressibleByIntegerLiteral'Clamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range) // binary operator '+' cannot be applied to two 'Value' operandsClamped(wrappedValue: lhs.wrappedValue + rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'Clamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range) // binary operator '-' cannot be applied to two 'Value' operandsClamped(wrappedValue: lhs.wrappedValue - rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'extension Clamped: Numeric { // type 'Clamped<Value>' does not conform to protocol 'Numeric'guard let value = Value(exactly: source) else { return nil } // type 'Value' has no member 'init'var magnitude: Value { wrappedValue.magnitude } // value of type 'Value' has no member 'magnitude'Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range) // instance member 'range' cannot be used on type 'Clamped<Value>'Clamped(wrappedValue: lhs.wrappedValue * rhs.wrappedValue, range) // binary operator '*' cannot be applied to two 'Value' operandsenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct Person {
@Logged(logger: { event, value in
print("Event: \(event), value: \(value)")
})
var name: String
@Logged(logger: { event, value in
print("Event: \(event), value: \(value)")
})
var age: Int
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct Person {
@Logged(logger: { event, value in
print("Event: \(event), value: \(value)")
})
var name: String
@Logged(logger: { event, value in
print("Event: \(event), value: \(value)")
})
var age: Int
}
var person = Person(name: "John", age: 25)
person.name = "Bob"
print(person.name)
```
@Logged(logger: { event, value in // missing argument for parameter 'wrappedValue' in call@Logged(logger: { event, value in // missing argument for parameter 'wrappedValue' in callenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private let logger: (Event, Value) -> Void
private var value: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.logger = logger
self.value = wrappedValue
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private let logger: (Event, Value) -> Void
private var value: Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.logger = logger
self.value = wrappedValue
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
get {
logger(.get, wrappedValue)
return self
}
set {
logger(.set, newValue.wrappedValue)
}
}
}
class LoggedExample {
@Logged(logger: { print("[\($0)] value: \($1)") })
var value: String = "Hello"
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
get {
logger(.get, wrappedValue)
return self
}
set {
logger(.set, newValue.wrappedValue)
}
}
}
class LoggedExample {
@Logged(logger: { print("[\($0)] value: \($1)") })
var value: String = "Hello"
}
let example = LoggedExample()
print(example.value)
example.value = "World"
print(example.value)
```
// XCTAssertEqual failed: ([]) is not equal to (["Accessing value: 0"])enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct Person {
@Logged(logger: { event, value in
print("event: \(event), value: \(value)")
})
var name: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct Person {
@Logged(logger: { event, value in
print("event: \(event), value: \(value)")
})
var name: String
}
var person = Person(name: "John")
person.name = "Bob"
print(person.name)
```
@Logged(logger: { event, value in // missing argument for parameter 'wrappedValue' in callenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T>: LoggedProtocol {
private var value: T
private let logger: (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: T {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged(logger: { event, value in
print("Event: \(event), value: \(value)")
})
var name: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T>: LoggedProtocol {
private var value: T
private let logger: (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: T {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
struct User {
@Logged(logger: { event, value in
print("Event: \(event), value: \(value)")
})
var name: String
}
var user = User(name: "John")
user.name = "Bob"
print(user.name)
```
@Logged(logger: { event, value in // missing argument for parameter 'wrappedValue' in callenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged {
get {
logger(.get, wrappedValue)
return self
}
set {
logger(.set, newValue.wrappedValue)
wrappedValue = newValue.wrappedValue
}
}
}
struct Person {
@Logged(logger: { print($0, $1) })
var name: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged {
get {
logger(.get, wrappedValue)
return self
}
set {
logger(.set, newValue.wrappedValue)
wrappedValue = newValue.wrappedValue
}
}
}
struct Person {
@Logged(logger: { print($0, $1) })
var name: String
}
var person = Person(name: "John")
person.name = "Bob"
print(person.name)
```
@Logged(logger: { print($0, $1) }) // missing argument for parameter 'wrappedValue' in callenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
class LoggedExample {
@Logged(logger: { event, value in
print("Event: \(event), value: \(value)")
})
var value: String = "Initial value"
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
class LoggedExample {
@Logged(logger: { event, value in
print("Event: \(event), value: \(value)")
})
var value: String = "Initial value"
}
let example = LoggedExample()
print(example.value)
example.value = "New value"
print(example.value)
```
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
get {
logger(.get, wrappedValue)
return self
}
set {
logger(.set, newValue.wrappedValue)
wrappedValue = newValue.wrappedValue
}
}
}
struct Person {
@Logged(logger: { print("Event: \($0), value: \($1)") })
var name: String
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
var wrappedValue: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var projectedValue: Logged<Value> {
get {
logger(.get, wrappedValue)
return self
}
set {
logger(.set, newValue.wrappedValue)
wrappedValue = newValue.wrappedValue
}
}
}
struct Person {
@Logged(logger: { print("Event: \($0), value: \($1)") })
var name: String
}
var person = Person(name: "John")
person.name = "Bob"
print(person.name)
```
@Logged(logger: { print("Event: \($0), value: \($1)") }) // missing argument for parameter 'wrappedValue' in callprotocol 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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
return nil
}
}
```
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol{
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol{
private let provider: WeatherProvider
private var city: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
city.append(character)
case .keyboardDeleteBackwards:
city.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
return nil
}
}
```
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol{
private let provider: WeatherProvider
private var searchBarResults: [String] = []
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
searchBarResults = searchBarResults.filter { $0.hasPrefix(searchBarText) }
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
searchBarResults = searchBarResults.filter { $0.hasPrefix(searchBarText) }
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol{
private let provider: WeatherProvider
private var searchBarResults: [String] = []
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
searchBarResults = searchBarResults.filter { $0.hasPrefix(searchBarText) }
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
searchBarResults = searchBarResults.filter { $0.hasPrefix(searchBarText) }
return nil
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
}
}
```
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol{
private let provider: WeatherProvider
private var searchBarResults: [String] = []
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
searchBarResults = searchBarResults.filter { $0.hasPrefix(searchBarText) }
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
searchBarResults = searchBarResults.filter { $0.hasPrefix(searchBarText) }
return nil
case .searchButtonPress:
guard let city = searchBarResults.first else {
return .failure(city: searchBarText)
}
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 searchBarResults: [String] = []
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
searchBarResults = searchBarResults.filter { $0.hasPrefix(searchBarText) }
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
searchBarResults = searchBarResults.filter { $0.hasPrefix(searchBarText) }
return nil
case .searchButtonPress:
guard let city = searchBarResults.first else {
return .failure(city: searchBarText)
}
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}
```
// XCTAssertEqual failed: (Optional(Solution.ApplicationFeedback.failure(city: "Kyiv"))) is not equal to (Optional(Solution.ApplicationFeedback.success(city: "Kyiv", forecast: "+28")))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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchBarResults: [String] = []
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
searchBarResults = ["Moscow", "London", "Paris"]
.filter { $0.hasPrefix(searchBarText) }
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
searchBarResults = ["Moscow", "London", "Paris"]
.filter { $0.hasPrefix(searchBarText) }
return nil
case .searchButtonPress:
guard let city = searchBarResults.first else { return nil }
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 searchBarResults: [String] = []
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
searchBarResults = ["Moscow", "London", "Paris"]
.filter { $0.hasPrefix(searchBarText) }
return nil
case .keyboardDeleteBackwards:
searchBarText.removeLast()
searchBarResults = ["Moscow", "London", "Paris"]
.filter { $0.hasPrefix(searchBarText) }
return nil
case .searchButtonPress:
guard let city = searchBarResults.first else { return nil }
do {
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: city)
}
}
}
}
```
// XCTAssertEqual failed: (nil) is not equal to (Optional(Solution.ApplicationFeedback.success(city: "Kyiv", forecast: "+28")))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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
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 searchQuery = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchQuery.append(character)
case .keyboardDeleteBackwards:
searchQuery.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchQuery)
return .success(city: searchQuery, forecast: forecast)
} catch {
return .failure(city: searchQuery)
}
}
return nil
}
}
```