Metadata
| Key | Value |
|---|---|
| engine | transformers |
| prompt | instruct |
| temp | 0.2 |
| top_p | 0.95 |
| max_new_tokens | 1024 |
| n_completions | 10 |
Solutions
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using:.utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: []) as! JSON
return 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: []) as! JSON
return 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: []) as! JSON
return 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: []) as! JSON
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using:.utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
guard let dict = json as? JSON else {
throw ParsingError.internalError(ParsingError.invalidInput)
}
return dict
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using:.utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
guard let dict = json as? JSON else {
throw ParsingError.internalError(ParsingError.invalidInput)
}
return dict
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using:.utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
guard let dict = json as? JSON else {
throw ParsingError.internalError(ParsingError.invalidInput)
}
return dict
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using:.utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
guard let dict = json as? JSON else {
throw ParsingError.internalError(ParsingError.invalidInput)
}
return dict
} 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: []) as! JSON
return 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: []) as! JSON
return 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: []) as! JSON
return 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: []) as! JSON
return json
} catch {
throw ParsingError.internalError(error)
}
}
```typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using:.utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
guard let dict = json as? JSON else {
throw ParsingError.internalError(ParsingError.invalidInput)
}
return dict
} catch {
throw ParsingError.internalError(error)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
### Response:
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
guard let data = string.data(using:.utf8) else {
throw ParsingError.invalidInput
}
do {
let json = try JSONSerialization.jsonObject(with: data, options: [])
guard let dict = json as? JSON else {
throw ParsingError.internalError(ParsingError.invalidInput)
}
return dict
} 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: []) as! JSON
return 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: []) as! JSON
return 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: []) as! JSON
return 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: []) as! JSON
return 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: []) as! JSON
return 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: []) as! JSON
return json
} catch {
throw ParsingError.internalError(error)
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
let tree = HTMLNode.element("div", children: [
HTMLNode.element("a", attributes: ["href": "swifteval"])
])
print(generate(tree))
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
return html
}
}
let tree = HTMLNode.element("div", children: [
.element("a", attributes: ["href": "swifteval"])
])
print(generate(tree))
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
let attributesString = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined()
return "<\(name) \(attributesString)>\(childrenString)</\(name)>"
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
let attributesString = attributes.map { "\($0)=\"\($1)\"" }.joined(separator: " ")
let childrenString = children.map(generate).joined()
return "<\(name) \(attributesString)>\(childrenString)</\(name)>"
}
}
```indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
HTML generator from predefined elements tree.
Output with standart HTML like this "<div><a href="swifteval"></a></div>"
### Response:
```swift
indirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String {
switch tree {
case.text(let content):
return content
case.element(let name, let attributes, let children):
var result = "<\(name)"
for (key, value) in attributes {
result += " \(key)=\"\(value)\""
}
result += ">"
for child in children {
result += generate(child)
}
result += "</\(name)>"
return result
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
for token in tokens {
switch token {
case "+":
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
stack.append("\(a + b)")
} else {
throw CalculateError.invalidInput
}
case "-":
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
stack.append("\(a - b)")
} else {
throw CalculateError.invalidInput
}
case "*":
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
stack.append("\(a * b)")
} else {
throw CalculateError.invalidInput
}
case "/":
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
stack.append("\(a / b)")
} else {
throw CalculateError.invalidInput
}
case "(":
stack.append(String(token))
case ")":
while stack.last!= "(" {
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
let op = stack.removeLast()
switch op {
case "+":
stack.append("\(a + b)")
case "-":
stack.append("\(a - b)")
case "*":
stack.append("\(a * b)")
case "/":
stack.append("\(a / b)")
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
stack.removeLast()
default:
stack.append(String(token))
}
}
if stack.count == 1 {
return Double(stack.last!)!
} else {
throw CalculateError.invalidInput
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
for token in tokens {
switch token {
case "+":
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
stack.append("\(a + b)")
} else {
throw CalculateError.invalidInput
}
case "-":
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
stack.append("\(a - b)")
} else {
throw CalculateError.invalidInput
}
case "*":
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
stack.append("\(a * b)")
} else {
throw CalculateError.invalidInput
}
case "/":
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
stack.append("\(a / b)")
} else {
throw CalculateError.invalidInput
}
case "(":
stack.append(String(token))
case ")":
while stack.last!= "(" {
if stack.count >= 2 {
let b = Double(stack.removeLast())!
let a = Double(stack.removeLast())!
let op = stack.removeLast()
switch op {
case "+":
stack.append("\(a + b)")
case "-":
stack.append("\(a - b)")
case "*":
stack.append("\(a * b)")
case "/":
stack.append("\(a / b)")
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
stack.removeLast()
default:
stack.append(String(token))
}
}
if stack.count == 1 {
return Double(stack.last!)!
} else {
throw CalculateError.invalidInput
}
}
```while stack.last!= "(" { // cannot assign through '!': 'last' is a get-only propertywhile stack.last!= "(" { // '=' must have consistent whitespace on both sideswhile stack.last!= "(" { // use of '=' in a boolean context, did you mean '=='?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 "+":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(stack.removeLast() + stack.removeLast())
case "-":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(-stack.removeLast() + stack.removeLast())
case "*":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(stack.removeLast() * stack.removeLast())
case "/":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(1 / stack.removeLast() * stack.removeLast())
case "(":
continue
case ")":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(stack.removeLast() + stack.removeLast())
default:
if let number = Double(token) {
stack.append(number)
} else {
throw CalculateError.invalidInput
}
}
}
if stack.count!= 1 { throw CalculateError.invalidInput }
return stack.removeLast()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [Double]()
for token in tokens {
switch token {
case "+":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(stack.removeLast() + stack.removeLast())
case "-":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(-stack.removeLast() + stack.removeLast())
case "*":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(stack.removeLast() * stack.removeLast())
case "/":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(1 / stack.removeLast() * stack.removeLast())
case "(":
continue
case ")":
if stack.count < 2 { throw CalculateError.invalidInput }
stack.append(stack.removeLast() + stack.removeLast())
default:
if let number = Double(token) {
stack.append(number)
} else {
throw CalculateError.invalidInput
}
}
}
if stack.count!= 1 { throw CalculateError.invalidInput }
return stack.removeLast()
}
```if stack.count!= 1 { throw CalculateError.invalidInput } // cannot force unwrap value of non-optional type 'Int'if stack.count!= 1 { throw CalculateError.invalidInput } // '=' must have consistent whitespace on both sidesif stack.count!= 1 { throw CalculateError.invalidInput } // use of '=' in a boolean context, did you mean '=='?enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
var output = [String]()
for token in tokens {
switch token {
case "+":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "-":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "*":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "/":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "(":
stack.append(String(token))
case ")":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast()
default:
output.append(String(token))
}
}
while!stack.isEmpty {
output.append(stack.removeLast())
}
var resultStack = [Double]()
for token in output {
switch token {
case "+":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a + b)
case "-":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a - b)
case "*":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a * b)
case "/":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a / b)
default:
resultStack.append(Double(token)!)
}
}
if resultStack.count!= 1 {
throw CalculateError.invalidInput
}
return resultStack.last!
}### 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 = [String]()
var output = [String]()
for token in tokens {
switch token {
case "+":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "-":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "*":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "/":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "(":
stack.append(String(token))
case ")":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast()
default:
output.append(String(token))
}
}
while!stack.isEmpty {
output.append(stack.removeLast())
}
var resultStack = [Double]()
for token in output {
switch token {
case "+":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a + b)
case "-":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a - b)
case "*":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a * b)
case "/":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a / b)
default:
resultStack.append(Double(token)!)
}
}
if resultStack.count!= 1 {
throw CalculateError.invalidInput
}
return resultStack.last!
}
```while!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty { // expected expression, var, or let in 'while' conditionif resultStack.count!= 1 { // use of '=' in a boolean context, did you mean '=='?if resultStack.count!= 1 { // '=' must have consistent whitespace on both sidesif resultStack.count!= 1 { // cannot force unwrap value of non-optional type 'Int'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 stack.count >= 2 else { throw CalculateError.invalidInput }
stack[stack.count - 2] += stack[stack.count - 1]
stack.removeLast()
case "-":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
stack[stack.count - 2] -= stack[stack.count - 1]
stack.removeLast()
case "*":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
stack[stack.count - 2] *= stack[stack.count - 1]
stack.removeLast()
case "/":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
stack[stack.count - 2] /= stack[stack.count - 1]
stack.removeLast()
case "(":
break
case ")":
break
default:
stack.append(Double(token)?? 0)
}
}
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]()
for token in tokens {
switch token {
case "+":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
stack[stack.count - 2] += stack[stack.count - 1]
stack.removeLast()
case "-":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
stack[stack.count - 2] -= stack[stack.count - 1]
stack.removeLast()
case "*":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
stack[stack.count - 2] *= stack[stack.count - 1]
stack.removeLast()
case "/":
guard stack.count >= 2 else { throw CalculateError.invalidInput }
stack[stack.count - 2] /= stack[stack.count - 1]
stack.removeLast()
case "(":
break
case ")":
break
default:
stack.append(Double(token)?? 0)
}
}
return stack.first?? 0
}
```stack.append(Double(token)?? 0) // cannot use optional chaining on non-optional value of type 'Double'stack.append(Double(token)?? 0) // no exact matches in call to instance method 'append'stack.append(Double(token)?? 0) // expected ',' separatorreturn stack.first?? 0 // consecutive statements on a line must be separated by ';'return stack.first?? 0 // cannot use optional chaining on non-optional value of type 'Double'return stack.first?? 0 // integer literal is unusedreturn stack.first?? 0 // value of optional type 'Double?' must be unwrapped to a value of type 'Double'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
for token in tokens {
if token == "(" {
stack.append(String(token))
} else if token == ")" {
while!stack.isEmpty && stack.last!= "(" {
evaluateTop(stack)
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if token == "+" || token == "-" || token == "*" || token == "/" {
while!stack.isEmpty && precedence(token) <= precedence(stack.last!) {
evaluateTop(stack)
}
stack.append(String(token))
} else {
stack.append(String(token))
}
}
while!stack.isEmpty {
evaluateTop(stack)
}
if stack.count == 1, let result = Double(stack.last!) {
return result
} else {
throw CalculateError.invalidInput
}
}
func evaluateTop(_ stack: inout [String]) {
let operand2 = Double(stack.removeLast())!
let operand1 = Double(stack.removeLast())!
let operatorToken = stack.removeLast()
switch operatorToken {
case "+":
stack.append(String(operand1 + operand2))
case "-":
stack.append(String(operand1 - operand2))
case "*":
stack.append(String(operand1 * operand2))
case "/":
stack.append(String(operand1 / operand2))
default:
break
}
}
func precedence(_ token: String) -> Int {
switch token {
case "+":
return 1
case "-":
return 1
case "*":
return 2
case "/":
return 2
default:
return 0
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
for token in tokens {
if token == "(" {
stack.append(String(token))
} else if token == ")" {
while!stack.isEmpty && stack.last!= "(" {
evaluateTop(stack)
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if token == "+" || token == "-" || token == "*" || token == "/" {
while!stack.isEmpty && precedence(token) <= precedence(stack.last!) {
evaluateTop(stack)
}
stack.append(String(token))
} else {
stack.append(String(token))
}
}
while!stack.isEmpty {
evaluateTop(stack)
}
if stack.count == 1, let result = Double(stack.last!) {
return result
} else {
throw CalculateError.invalidInput
}
}
func evaluateTop(_ stack: inout [String]) {
let operand2 = Double(stack.removeLast())!
let operand1 = Double(stack.removeLast())!
let operatorToken = stack.removeLast()
switch operatorToken {
case "+":
stack.append(String(operand1 + operand2))
case "-":
stack.append(String(operand1 - operand2))
case "*":
stack.append(String(operand1 * operand2))
case "/":
stack.append(String(operand1 / operand2))
default:
break
}
}
func precedence(_ token: String) -> Int {
switch token {
case "+":
return 1
case "-":
return 1
case "*":
return 2
case "/":
return 2
default:
return 0
}
}
```while!stack.isEmpty && stack.last!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && precedence(token) <= precedence(stack.last!) { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty { // expected expression, var, or let in 'while' conditionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
for token in tokens {
if token == "(" {
stack.append(String(token))
} else if token == ")" {
while!stack.isEmpty && stack.last!= "(" {
evaluateTopOfStack(&stack)
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast()
} else if token == "+" || token == "-" || token == "*" || token == "/" {
while!stack.isEmpty && precedence(token: token, over: stack.last!) {
evaluateTopOfStack(&stack)
}
stack.append(String(token))
} else {
stack.append(String(token))
}
}
while!stack.isEmpty {
evaluateTopOfStack(&stack)
}
if stack.count!= 1 {
throw CalculateError.invalidInput
}
return Double(stack.first!)!
}
func evaluateTopOfStack(_ stack: inout [String]) {
let operand2 = Double(stack.removeLast())!
let operand1 = Double(stack.removeLast())!
let operatorToken = stack.removeLast()
switch operatorToken {
case "+":
stack.append(String(operand1 + operand2))
case "-":
stack.append(String(operand1 - operand2))
case "*":
stack.append(String(operand1 * operand2))
case "/":
stack.append(String(operand1 / operand2))
default:
break
}
}
func precedence(token: String, over: String) -> Bool {
if token == "*" || token == "/" {
return over == "+" || over == "-"
}
return false
}### 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 = [String]()
for token in tokens {
if token == "(" {
stack.append(String(token))
} else if token == ")" {
while!stack.isEmpty && stack.last!= "(" {
evaluateTopOfStack(&stack)
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast()
} else if token == "+" || token == "-" || token == "*" || token == "/" {
while!stack.isEmpty && precedence(token: token, over: stack.last!) {
evaluateTopOfStack(&stack)
}
stack.append(String(token))
} else {
stack.append(String(token))
}
}
while!stack.isEmpty {
evaluateTopOfStack(&stack)
}
if stack.count!= 1 {
throw CalculateError.invalidInput
}
return Double(stack.first!)!
}
func evaluateTopOfStack(_ stack: inout [String]) {
let operand2 = Double(stack.removeLast())!
let operand1 = Double(stack.removeLast())!
let operatorToken = stack.removeLast()
switch operatorToken {
case "+":
stack.append(String(operand1 + operand2))
case "-":
stack.append(String(operand1 - operand2))
case "*":
stack.append(String(operand1 * operand2))
case "/":
stack.append(String(operand1 / operand2))
default:
break
}
}
func precedence(token: String, over: String) -> Bool {
if token == "*" || token == "/" {
return over == "+" || over == "-"
}
return false
}
```while!stack.isEmpty && stack.last!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && precedence(token: token, over: stack.last!) { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty { // expected expression, var, or let in 'while' conditionif stack.count!= 1 { // cannot force unwrap value of non-optional type 'Int'if stack.count!= 1 { // '=' must have consistent whitespace on both sidesif stack.count!= 1 { // use of '=' in a boolean context, did you mean '=='?enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
var output = [String]()
for token in tokens {
switch token {
case "+":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "-":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "*":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "/":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "(":
stack.append(String(token))
case ")":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast()
default:
output.append(String(token))
}
}
while!stack.isEmpty {
output.append(stack.removeLast())
}
var resultStack = [Double]()
for token in output {
switch token {
case "+":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a + b)
case "-":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a - b)
case "*":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a * b)
case "/":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a / b)
default:
resultStack.append(Double(token)!)
}
}
if resultStack.count!= 1 {
throw CalculateError.invalidInput
}
return resultStack.first!
}### 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 = [String]()
var output = [String]()
for token in tokens {
switch token {
case "+":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "-":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "*":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "/":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "(":
stack.append(String(token))
case ")":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast()
default:
output.append(String(token))
}
}
while!stack.isEmpty {
output.append(stack.removeLast())
}
var resultStack = [Double]()
for token in output {
switch token {
case "+":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a + b)
case "-":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a - b)
case "*":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a * b)
case "/":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a / b)
default:
resultStack.append(Double(token)!)
}
}
if resultStack.count!= 1 {
throw CalculateError.invalidInput
}
return resultStack.first!
}
```while!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "+" && stack.last!!= "-" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty { // expected expression, var, or let in 'while' conditionif resultStack.count!= 1 { // use of '=' in a boolean context, did you mean '=='?if resultStack.count!= 1 { // '=' must have consistent whitespace on both sidesif resultStack.count!= 1 { // cannot force unwrap value of non-optional type 'Int'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
for token in tokens {
if token == "(" {
stack.append(String(token))
} else if token == ")" {
while!stack.isEmpty && stack.last!= "(" {
evaluateTop(stack)
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if token == "+" || token == "-" || token == "*" || token == "/" {
while!stack.isEmpty && precedence(token) <= precedence(stack.last!) {
evaluateTop(stack)
}
stack.append(String(token))
} else {
stack.append(String(token))
}
}
while!stack.isEmpty {
evaluateTop(stack)
}
if let result = Double(stack.last!) {
return result
} else {
throw CalculateError.invalidInput
}
}
func evaluateTop(_ stack: inout [String]) {
let right = Double(stack.removeLast())!
let left = Double(stack.removeLast())!
let op = stack.removeLast()
switch op {
case "+":
stack.append(String(left + right))
case "-":
stack.append(String(left - right))
case "*":
stack.append(String(left * right))
case "/":
stack.append(String(left / right))
default:
break
}
}
func precedence(_ op: String) -> Int {
switch op {
case "+":
return 1
case "-":
return 1
case "*":
return 2
case "/":
return 2
default:
return 0
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
for token in tokens {
if token == "(" {
stack.append(String(token))
} else if token == ")" {
while!stack.isEmpty && stack.last!= "(" {
evaluateTop(stack)
}
if stack.last == "(" {
stack.removeLast()
} else {
throw CalculateError.invalidInput
}
} else if token == "+" || token == "-" || token == "*" || token == "/" {
while!stack.isEmpty && precedence(token) <= precedence(stack.last!) {
evaluateTop(stack)
}
stack.append(String(token))
} else {
stack.append(String(token))
}
}
while!stack.isEmpty {
evaluateTop(stack)
}
if let result = Double(stack.last!) {
return result
} else {
throw CalculateError.invalidInput
}
}
func evaluateTop(_ stack: inout [String]) {
let right = Double(stack.removeLast())!
let left = Double(stack.removeLast())!
let op = stack.removeLast()
switch op {
case "+":
stack.append(String(left + right))
case "-":
stack.append(String(left - right))
case "*":
stack.append(String(left * right))
case "/":
stack.append(String(left / right))
default:
break
}
}
func precedence(_ op: String) -> Int {
switch op {
case "+":
return 1
case "-":
return 1
case "*":
return 2
case "/":
return 2
default:
return 0
}
}
```while!stack.isEmpty && stack.last!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && precedence(token) <= precedence(stack.last!) { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty { // expected expression, var, or let in 'while' conditionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
var output = [String]()
for token in tokens {
switch token {
case "+":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "-":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "*":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "/":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "(":
stack.append(String(token))
case ")":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast()
default:
output.append(String(token))
}
}
while!stack.isEmpty {
output.append(stack.removeLast())
}
var resultStack = [Double]()
for token in output {
switch token {
case "+":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a + b)
case "-":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a - b)
case "*":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a * b)
case "/":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a / b)
default:
resultStack.append(Double(token)!)
}
}
if resultStack.count!= 1 {
throw CalculateError.invalidInput
}
return resultStack.first!
}### 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 = [String]()
var output = [String]()
for token in tokens {
switch token {
case "+":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "-":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "*":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "/":
while!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" {
output.append(stack.removeLast())
}
stack.append(String(token))
case "(":
stack.append(String(token))
case ")":
while!stack.isEmpty && stack.last!!= "(" {
output.append(stack.removeLast())
}
if stack.isEmpty {
throw CalculateError.invalidInput
}
stack.removeLast()
default:
output.append(String(token))
}
}
while!stack.isEmpty {
output.append(stack.removeLast())
}
var resultStack = [Double]()
for token in output {
switch token {
case "+":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a + b)
case "-":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a - b)
case "*":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a * b)
case "/":
if resultStack.count < 2 {
throw CalculateError.invalidInput
}
let b = resultStack.removeLast()
let a = resultStack.removeLast()
resultStack.append(a / b)
default:
resultStack.append(Double(token)!)
}
}
if resultStack.count!= 1 {
throw CalculateError.invalidInput
}
return resultStack.first!
}
```while!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" && stack.last!!= "-" && stack.last!!= "+" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty && stack.last!!= "(" { // expected expression, var, or let in 'while' conditionwhile!stack.isEmpty && stack.last!!= "(" { // '=' must have consistent whitespace on both sideswhile!stack.isEmpty { // expected expression, var, or let in 'while' conditionif resultStack.count!= 1 { // use of '=' in a boolean context, did you mean '=='?if resultStack.count!= 1 { // '=' must have consistent whitespace on both sidesif resultStack.count!= 1 { // cannot force unwrap value of non-optional type 'Int'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
let tokens = string.split(separator: " ")
var stack = [String]()
for token in tokens {
if token == "(" {
stack.append(String(token))
} else if token == ")" {
while let top = stack.popLast(), top!= "(" {
if top == "+" || top == "-" || top == "*" || top == "/" {
let b = Double(stack.popLast()!)
let a = Double(stack.popLast()!)
let result: Double
switch top {
case "+":
result = a + b
case "-":
result = a - b
case "*":
result = a * b
case "/":
result = a / b
default:
throw CalculateError.invalidInput
}
stack.append(String(result))
} else {
throw CalculateError.invalidInput
}
}
} else if token == "+" || token == "-" || token == "*" || token == "/" {
while let top = stack.last, top == "+" || top == "-" || top == "*" || top == "/" {
let b = Double(stack.popLast()!)
let a = Double(stack.popLast()!)
let result: Double
switch top {
case "+":
result = a + b
case "-":
result = a - b
case "*":
result = a * b
case "/":
result = a / b
default:
throw CalculateError.invalidInput
}
stack.append(String(result))
}
stack.append(String(token))
} else {
stack.append(String(token))
}
}
while!stack.isEmpty {
let token = stack.popLast()!
if token == "+" || token == "-" || token == "*" || token == "/" {
let b = Double(stack.popLast()!)
let a = Double(stack.popLast()!)
let result: Double
switch token {
case "+":
result = a + b
case "-":
result = a - b
case "*":
result = a * b
case "/":
result = a / b
default:
throw CalculateError.invalidInput
}
stack.append(String(result))
} else {
throw CalculateError.invalidInput
}
}
return Double(stack.last!)!
}### 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 = [String]()
for token in tokens {
if token == "(" {
stack.append(String(token))
} else if token == ")" {
while let top = stack.popLast(), top!= "(" {
if top == "+" || top == "-" || top == "*" || top == "/" {
let b = Double(stack.popLast()!)
let a = Double(stack.popLast()!)
let result: Double
switch top {
case "+":
result = a + b
case "-":
result = a - b
case "*":
result = a * b
case "/":
result = a / b
default:
throw CalculateError.invalidInput
}
stack.append(String(result))
} else {
throw CalculateError.invalidInput
}
}
} else if token == "+" || token == "-" || token == "*" || token == "/" {
while let top = stack.last, top == "+" || top == "-" || top == "*" || top == "/" {
let b = Double(stack.popLast()!)
let a = Double(stack.popLast()!)
let result: Double
switch top {
case "+":
result = a + b
case "-":
result = a - b
case "*":
result = a * b
case "/":
result = a / b
default:
throw CalculateError.invalidInput
}
stack.append(String(result))
}
stack.append(String(token))
} else {
stack.append(String(token))
}
}
while!stack.isEmpty {
let token = stack.popLast()!
if token == "+" || token == "-" || token == "*" || token == "/" {
let b = Double(stack.popLast()!)
let a = Double(stack.popLast()!)
let result: Double
switch token {
case "+":
result = a + b
case "-":
result = a - b
case "*":
result = a * b
case "/":
result = a / b
default:
throw CalculateError.invalidInput
}
stack.append(String(result))
} else {
throw CalculateError.invalidInput
}
}
return Double(stack.last!)!
}
```while let top = stack.popLast(), top!= "(" { // '=' must have consistent whitespace on both sideswhile let top = stack.popLast(), top!= "(" { // use of '=' in a boolean context, did you mean '=='?while let top = stack.popLast(), top!= "(" { // cannot force unwrap value of non-optional type 'String'result = a + b // binary operator '+' cannot be applied to two 'Double?' operandsresult = a - b // binary operator '-' cannot be applied to two 'Double?' operandsresult = a * b // binary operator '*' cannot be applied to two 'Double?' operandsresult = a / b // binary operator '/' cannot be applied to two 'Double?' operandsresult = a + b // binary operator '+' cannot be applied to two 'Double?' operandsresult = a - b // binary operator '-' cannot be applied to two 'Double?' operandsresult = a * b // binary operator '*' cannot be applied to two 'Double?' operandsresult = a / b // binary operator '/' cannot be applied to two 'Double?' operandswhile!stack.isEmpty { // expected expression, var, or let in 'while' conditionfunc execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func execute(binary: String, arguments: [String]) -> (String, String) {
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}### 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 process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = arguments
let stdoutPipe = Pipe()
process.standardOutput = stdoutPipe
let stderrPipe = Pipe()
process.standardError = stderrPipe
try? process.run()
process.waitUntilExit()
let stdoutData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let stdout = String(data: stdoutData, encoding:.utf8)?? ""
let stderrData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let stderr = String(data: stderrData, encoding:.utf8)?? ""
return (stdout, stderr)
}
```let stdout = String(data: stdoutData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'let stdout = String(data: stdoutData, encoding:.utf8)?? "" // string literal is unusedlet stdout = String(data: stdoutData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // consecutive statements on a line must be separated by ';'let stderr = String(data: stderrData, encoding:.utf8)?? "" // string literal is unusedlet stderr = String(data: stderrData, encoding:.utf8)?? "" // cannot use optional chaining on non-optional value of type 'String'func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
} else {
let result = function(input)
cache[input] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { input in
if let cachedResult = cache[input] {
return cachedResult
}
let result = function(input)
cache[input] = result
return result
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
### Response:
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { argument in
if let cachedResult = cache[argument] {
return cachedResult
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw RetryError.maxAttemptsReached
}
enum RetryError: Error {
case maxAttemptsReached
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw RetryError.maxAttemptsReached
}
enum RetryError: Error {
case maxAttemptsReached
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for attempt in 1...attempts {
do {
return try task()
} catch {
if attempt == attempts {
throw error
}
}
}
throw Error("Failed after \(attempts) attempts.")
}
```throw Error("Failed after \(attempts) attempts.") // 'any Error' cannot be constructed because it has no accessible initializersprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registry = [String: () -> Any]()
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registry[String(describing: type)] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
guard let factory = registry[String(describing: type)] else {
return nil
}
return factory() as? T
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var transitions: [(from: State, to: State, event: Event)] = []
private(set) var state: State
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
let transition = transitions.first { $0.from == state && $0.event == event }
if let transition = transition {
state = transition.to
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var transitions: [(from: State, to: State, event: Event)] = []
private(set) var state: State
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
let transition = transitions.first { $0.from == state && $0.event == event }
if let transition = transition {
state = transition.to
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var transitions: [(from: State, to: State, event: Event)] = []
private(set) var state: State
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var transitions: [(from: State, to: State, event: Event)] = []
private(set) var state: State
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var transitions: [State: [Event: State]] = [:]
private(set) var state: 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 transitions: [State: [Event: State]] = [:]
private(set) var state: 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
}
}
```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 transitions: [(from: State, to: State, event: Event)] = []
private(set) var state: State
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
return
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
private var transitions: [(from: State, to: State, event: Event)] = []
private(set) var state: State
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
for transition in transitions {
if transition.from == state && transition.event == event {
state = transition.to
return
}
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.treeDepth }.max()?? 0 + 1
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.treeDepth }.max()?? 0 + 1
}
}
}
```return contents.map { $0.treeDepth }.max()?? 0 + 1 // consecutive statements on a line must be separated by ';'return contents.map { $0.treeDepth }.max()?? 0 + 1 // result of operator '+' is unusedreturn contents.map { $0.treeDepth }.max()?? 0 + 1 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return contents.map { $0.treeDepth }.max()?? 0 + 1 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.map { $0.totalSize }.reduce(0, +)
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.filesCount }.reduce(0, +)
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return 1 + contents.map { $0.treeDepth }.max()?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.map { $0.totalSize }.reduce(0, +)
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.filesCount }.reduce(0, +)
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return 1 + contents.map { $0.treeDepth }.max()?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max()?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return 1 + contents.map { $0.treeDepth }.max()?? 0 // consecutive statements on a line must be separated by ';'return 1 + contents.map { $0.treeDepth }.max()?? 0 // integer literal is unusedreturn 1 + contents.map { $0.treeDepth }.max()?? 0 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.treeDepth }.max()?? 0 + 1
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.treeDepth }.max()?? 0 + 1
}
}
}
```return contents.map { $0.treeDepth }.max()?? 0 + 1 // consecutive statements on a line must be separated by ';'return contents.map { $0.treeDepth }.max()?? 0 + 1 // result of operator '+' is unusedreturn contents.map { $0.treeDepth }.max()?? 0 + 1 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return contents.map { $0.treeDepth }.max()?? 0 + 1 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case 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.map { $0.treeDepth }.max()?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case 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.map { $0.treeDepth }.max()?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max()?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return 1 + contents.map { $0.treeDepth }.max()?? 0 // consecutive statements on a line must be separated by ';'return 1 + contents.map { $0.treeDepth }.max()?? 0 // integer literal is unusedreturn 1 + contents.map { $0.treeDepth }.max()?? 0 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case 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.map { $0.treeDepth }.max()?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case 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.map { $0.treeDepth }.max()?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max()?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return 1 + contents.map { $0.treeDepth }.max()?? 0 // consecutive statements on a line must be separated by ';'return 1 + contents.map { $0.treeDepth }.max()?? 0 // integer literal is unusedreturn 1 + contents.map { $0.treeDepth }.max()?? 0 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.map { $0.totalSize }.reduce(0, +)
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.filesCount }.reduce(0, +)
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return 1 + contents.map { $0.treeDepth }.max()?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.map { $0.totalSize }.reduce(0, +)
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.filesCount }.reduce(0, +)
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return 1 + contents.map { $0.treeDepth }.max()?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max()?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return 1 + contents.map { $0.treeDepth }.max()?? 0 // consecutive statements on a line must be separated by ';'return 1 + contents.map { $0.treeDepth }.max()?? 0 // integer literal is unusedreturn 1 + contents.map { $0.treeDepth }.max()?? 0 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.map { $0.totalSize }.reduce(0, +)
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.filesCount }.reduce(0, +)
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return 1 + contents.map { $0.treeDepth }.max()?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.map { $0.totalSize }.reduce(0, +)
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.filesCount }.reduce(0, +)
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return 1 + contents.map { $0.treeDepth }.max()?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max()?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return 1 + contents.map { $0.treeDepth }.max()?? 0 // consecutive statements on a line must be separated by ';'return 1 + contents.map { $0.treeDepth }.max()?? 0 // integer literal is unusedreturn 1 + contents.map { $0.treeDepth }.max()?? 0 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case 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.map { $0.treeDepth }.max()?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case 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.map { $0.treeDepth }.max()?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max()?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return 1 + contents.map { $0.treeDepth }.max()?? 0 // consecutive statements on a line must be separated by ';'return 1 + contents.map { $0.treeDepth }.max()?? 0 // integer literal is unusedreturn 1 + contents.map { $0.treeDepth }.max()?? 0 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.treeDepth }.max()?? 0 + 1
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map { $0.treeDepth }.max()?? 0 + 1
}
}
}
```return contents.map { $0.treeDepth }.max()?? 0 + 1 // consecutive statements on a line must be separated by ';'return contents.map { $0.treeDepth }.max()?? 0 + 1 // result of operator '+' is unusedreturn contents.map { $0.treeDepth }.max()?? 0 + 1 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return contents.map { $0.treeDepth }.max()?? 0 + 1 // cannot use optional chaining on non-optional value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.map(\.totalSize).reduce(0, +)
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map(\.filesCount).reduce(0, +)
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return 1 + contents.map(\.treeDepth).max()?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case let.file(_, size):
return size
case let.directory(_, contents):
return contents.map(\.totalSize).reduce(0, +)
}
}
var filesCount: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return contents.map(\.filesCount).reduce(0, +)
}
}
var treeDepth: Int {
switch self {
case.file:
return 1
case let.directory(_, contents):
return 1 + contents.map(\.treeDepth).max()?? 0
}
}
}
```return 1 + contents.map(\.treeDepth).max()?? 0 // cannot use optional chaining on non-optional value of type 'Int'return 1 + contents.map(\.treeDepth).max()?? 0 // consecutive statements on a line must be separated by ';'return 1 + contents.map(\.treeDepth).max()?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'return 1 + contents.map(\.treeDepth).max()?? 0 // integer literal is unusedprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```class Stack<Element>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```class Stack<Element>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```class Stack<Element>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```class Stack<Element>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```class Stack<Element>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```class Stack<Element>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```class Stack<Element>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```class Stack<Element>: StackProtocol { // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
required init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
if!queue.contains(key) {
queue.append(key)
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
private func evict() {
if queue.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 var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
if!queue.contains(key) {
queue.append(key)
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
private func evict() {
if queue.count > capacity {
let key = queue.removeFirst()
cache.removeValue(forKey: key)
}
}
}
```if!queue.contains(key) { // expected expression, var, or let in 'if' conditionprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return self.cache[key]
}
set {
if let value = newValue {
self.cache[key] = value
self.queue.append(key)
if self.queue.count > self.capacity {
if let keyToRemove = self.queue.first {
self.cache.removeValue(forKey: keyToRemove)
self.queue.removeFirst()
}
}
} else {
self.cache.removeValue(forKey: key)
if let index = self.queue.firstIndex(of: key) {
self.queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return self.cache[key]
}
set {
if let value = newValue {
self.cache[key] = value
self.queue.append(key)
if self.queue.count > self.capacity {
if let keyToRemove = self.queue.first {
self.cache.removeValue(forKey: keyToRemove)
self.queue.removeFirst()
}
}
} else {
self.cache.removeValue(forKey: key)
if let index = self.queue.firstIndex(of: key) {
self.queue.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
queue.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
queue.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return self.cache[key]
}
set {
if let value = newValue {
self.cache[key] = value
self.queue.append(key)
if self.queue.count > self.capacity {
if let keyToRemove = self.queue.first {
self.cache.removeValue(forKey: keyToRemove)
self.queue.removeFirst()
}
}
} else {
self.cache.removeValue(forKey: key)
if let index = self.queue.firstIndex(of: key) {
self.queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return self.cache[key]
}
set {
if let value = newValue {
self.cache[key] = value
self.queue.append(key)
if self.queue.count > self.capacity {
if let keyToRemove = self.queue.first {
self.cache.removeValue(forKey: keyToRemove)
self.queue.removeFirst()
}
}
} else {
self.cache.removeValue(forKey: key)
if let index = self.queue.firstIndex(of: key) {
self.queue.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
queue.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
queue.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
cache.removeValue(forKey: keyToRemove)
queue.removeFirst()
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
cache.removeValue(forKey: keyToRemove)
queue.removeFirst()
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
if cache[key] == nil {
if queue.count >= capacity {
let oldestKey = queue.removeFirst()
cache.removeValue(forKey: oldestKey)
}
queue.append(key)
}
cache[key] = value
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
if cache[key] == nil {
if queue.count >= capacity {
let oldestKey = queue.removeFirst()
cache.removeValue(forKey: oldestKey)
}
queue.append(key)
}
cache[key] = value
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return self.cache[key]
}
set {
if let value = newValue {
self.cache[key] = value
self.queue.append(key)
if self.queue.count > self.capacity {
if let keyToRemove = self.queue.first {
self.cache.removeValue(forKey: keyToRemove)
self.queue.removeFirst()
}
}
} else {
self.cache.removeValue(forKey: key)
if let index = self.queue.firstIndex(of: key) {
self.queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return self.cache[key]
}
set {
if let value = newValue {
self.cache[key] = value
self.queue.append(key)
if self.queue.count > self.capacity {
if let keyToRemove = self.queue.first {
self.cache.removeValue(forKey: keyToRemove)
self.queue.removeFirst()
}
}
} else {
self.cache.removeValue(forKey: key)
if let index = self.queue.firstIndex(of: key) {
self.queue.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
queue.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
queue.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
cache.removeValue(forKey: keyToRemove)
queue.removeFirst()
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}### 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 capacity: Int
private var cache: [Key: Element]
private var queue: [Key]
required init(capacity: Int) {
self.capacity = capacity
self.cache = [Key: Element]()
self.queue = [Key]()
}
subscript(key: Key) -> Element? {
get {
return cache[key]
}
set {
if let value = newValue {
cache[key] = value
queue.append(key)
if queue.count > capacity {
if let keyToRemove = queue.first {
cache.removeValue(forKey: keyToRemove)
queue.removeFirst()
}
}
} else {
cache.removeValue(forKey: key)
if let index = queue.firstIndex(of: key) {
queue.remove(at: index)
}
}
}
}
}
```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] = [:]
private var expirationTimes: [Key: TimeInterval] = [:]
private var lastAccessTimes: [Key: TimeInterval] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
lastAccessTimes[key] = CACurrentMediaTime()
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key], CACurrentMediaTime() > expirationTime {
remove(key: key)
return nil
}
lastAccessTimes[key] = CACurrentMediaTime()
return cache[key]
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
put(value: newValue!, key: key, expiration: CACurrentMediaTime() + 60)
}
}
private func remove(key: Key) {
cache.removeValue(forKey: key)
expirationTimes.removeValue(forKey: key)
lastAccessTimes.removeValue(forKey: key)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: Value] = [:]
private var expirationTimes: [Key: TimeInterval] = [:]
private var lastAccessTimes: [Key: TimeInterval] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
lastAccessTimes[key] = CACurrentMediaTime()
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key], CACurrentMediaTime() > expirationTime {
remove(key: key)
return nil
}
lastAccessTimes[key] = CACurrentMediaTime()
return cache[key]
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
put(value: newValue!, key: key, expiration: CACurrentMediaTime() + 60)
}
}
private func remove(key: Key) {
cache.removeValue(forKey: key)
expirationTimes.removeValue(forKey: key)
lastAccessTimes.removeValue(forKey: key)
}
}
```lastAccessTimes[key] = CACurrentMediaTime() // cannot find 'CACurrentMediaTime' in scopeif let expirationTime = expirationTimes[key], CACurrentMediaTime() > expirationTime { // cannot find 'CACurrentMediaTime' in scopelastAccessTimes[key] = CACurrentMediaTime() // cannot find 'CACurrentMediaTime' in scopeput(value: newValue!, key: key, expiration: CACurrentMediaTime() + 60) // cannot find 'CACurrentMediaTime' in scopeThread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: Value]
private var expirationTimes: [Key: TimeInterval]
private var lastAccessedTime: [Key: TimeInterval]
init() {
cache = [:]
expirationTimes = [:]
lastAccessedTime = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
lastAccessedTime[key] = CACurrentMediaTime()
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key], CACurrentMediaTime() - lastAccessedTime[key]! > expirationTime {
remove(key: key)
return nil
}
lastAccessedTime[key] = CACurrentMediaTime()
return cache[key]
}
func remove(key: Key) {
cache.removeValue(forKey: key)
expirationTimes.removeValue(forKey: key)
lastAccessedTime.removeValue(forKey: key)
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 0)
} else {
remove(key: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: Value]
private var expirationTimes: [Key: TimeInterval]
private var lastAccessedTime: [Key: TimeInterval]
init() {
cache = [:]
expirationTimes = [:]
lastAccessedTime = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
lastAccessedTime[key] = CACurrentMediaTime()
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key], CACurrentMediaTime() - lastAccessedTime[key]! > expirationTime {
remove(key: key)
return nil
}
lastAccessedTime[key] = CACurrentMediaTime()
return cache[key]
}
func remove(key: Key) {
cache.removeValue(forKey: key)
expirationTimes.removeValue(forKey: key)
lastAccessedTime.removeValue(forKey: key)
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 0)
} else {
remove(key: key)
}
}
}
}
```lastAccessedTime[key] = CACurrentMediaTime() // cannot find 'CACurrentMediaTime' in scopeif let expirationTime = expirationTimes[key], CACurrentMediaTime() - lastAccessedTime[key]! > expirationTime { // cannot find 'CACurrentMediaTime' in scopelastAccessedTime[key] = CACurrentMediaTime() // cannot find 'CACurrentMediaTime' in scopeThread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
let now = Date().timeIntervalSince1970
if now > entry.expiration {
cache[key] = nil
return nil
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date().timeIntervalSince1970 + 60)
} else {
cache[key] = nil
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
let now = Date().timeIntervalSince1970
if now > entry.expiration {
cache[key] = nil
return nil
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date().timeIntervalSince1970 + 60)
} else {
cache[key] = nil
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: Value]
private var expirationTimes: [Key: TimeInterval]
init() {
cache = [:]
expirationTimes = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key] {
if expirationTime > 0 {
cache[key] = nil
expirationTimes[key] = nil
} else {
return cache[key]
}
}
return nil
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
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]
private var expirationTimes: [Key: TimeInterval]
init() {
cache = [:]
expirationTimes = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key] {
if expirationTime > 0 {
cache[key] = nil
expirationTimes[key] = nil
} else {
return cache[key]
}
}
return nil
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
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)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
let now = Date().timeIntervalSince1970
if now > entry.expiration {
cache[key] = nil
return nil
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date().timeIntervalSince1970 + 60)
} else {
cache[key] = nil
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
let now = Date().timeIntervalSince1970
if now > entry.expiration {
cache[key] = nil
return nil
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date().timeIntervalSince1970 + 60)
} else {
cache[key] = nil
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: Value] = [:]
private var expirationTimes: [Key: TimeInterval] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key], expirationTime < Date.timeIntervalSinceReferenceDate {
remove(key: key)
return nil
}
return cache[key]
}
private func remove(key: Key) {
cache.removeValue(forKey: key)
expirationTimes.removeValue(forKey: key)
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date.timeIntervalSinceReferenceDate + 60)
} else {
remove(key: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: Value] = [:]
private var expirationTimes: [Key: TimeInterval] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key], expirationTime < Date.timeIntervalSinceReferenceDate {
remove(key: key)
return nil
}
return cache[key]
}
private func remove(key: Key) {
cache.removeValue(forKey: key)
expirationTimes.removeValue(forKey: key)
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date.timeIntervalSinceReferenceDate + 60)
} else {
remove(key: key)
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
if entry.expiration > Date() {
return entry.value
} else {
cache[key] = nil
return nil
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 60)
} else {
cache[key] = nil
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
if entry.expiration > Date() {
return entry.value
} else {
cache[key] = nil
return nil
}
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 60)
} else {
cache[key] = nil
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 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)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
if entry.expiration > 0 {
if Date().timeIntervalSince1970 > entry.expiration {
cache[key] = nil
return nil
}
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 0)
} else {
cache[key] = nil
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
if entry.expiration > 0 {
if Date().timeIntervalSince1970 > entry.expiration {
cache[key] = nil
return nil
}
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: 0)
} else {
cache[key] = nil
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: Value] = [:]
private var expirationTimes: [Key: TimeInterval] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key], expirationTime < Date.timeIntervalSinceReferenceDate {
remove(key: key)
return nil
}
return cache[key]
}
private func remove(key: Key) {
cache.removeValue(forKey: key)
expirationTimes.removeValue(forKey: key)
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date.timeIntervalSinceReferenceDate + 60)
} else {
remove(key: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: Value] = [:]
private var expirationTimes: [Key: TimeInterval] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = value
expirationTimes[key] = expiration
}
func get(key: Key) -> Value? {
if let expirationTime = expirationTimes[key], expirationTime < Date.timeIntervalSinceReferenceDate {
remove(key: key)
return nil
}
return cache[key]
}
private func remove(key: Key) {
cache.removeValue(forKey: key)
expirationTimes.removeValue(forKey: key)
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date.timeIntervalSinceReferenceDate + 60)
} else {
remove(key: key)
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
let now = Date().timeIntervalSince1970
if now > entry.expiration {
cache[key] = nil
return nil
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date().timeIntervalSince1970 + 60)
} else {
cache[key] = nil
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration)
}
func get(key: Key) -> Value? {
guard let entry = cache[key] else { return nil }
let now = Date().timeIntervalSince1970
if now > entry.expiration {
cache[key] = nil
return nil
}
return entry.value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: Date().timeIntervalSince1970 + 60)
} else {
cache[key] = nil
}
}
}
}
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data(count: stringData.count)
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
encryptedData[i] = encryptedByte
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using:.utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
let decryptedByte = data[i] ^ keyData[i % keyData.count]
decryptedData[i] = 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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data(count: stringData.count)
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
encryptedData[i] = encryptedByte
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using:.utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
let decryptedByte = data[i] ^ keyData[i % keyData.count]
decryptedData[i] = 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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
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 stringData = string.data(using:.utf8)!
let keyData = key.data(using:.utf8)!
var encryptedData = Data()
for i in 0..<stringData.count {
let encryptedByte = stringData[i] ^ keyData[i % keyData.count]
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 decryptedByte = data[i] ^ keyData[i % keyData.count]
decryptedData.append(decryptedByte)
}
return String(data: decryptedData, encoding:.utf8)!
}
}
```protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 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 { now.timeIntervalSince($0) < timeInterval }
if requests.count < maxRequests {
requests.append(now)
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 { now.timeIntervalSince($0) < timeInterval }
if requests.count < maxRequests {
requests.append(now)
return true
}
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 requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 requests: [Date]
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.requests = []
}
func allowRequest() -> Bool {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private 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 {
requests = requests.filter { $0.timeIntervalSinceNow > -timeInterval }
if requests.count < maxRequests {
requests.append(Date())
return true
}
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 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}### 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()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = value
lock.unlock()
return currentValue
}
}
```protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: Output
private var transformations: [(Output) -> Output] = []
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: value)
}
func execute() -> Output {
for transform in transformations {
value = transform(value)
}
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: Output
private var transformations: [(Output) -> Output] = []
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: value)
}
func execute() -> Output {
for transform in transformations {
value = transform(value)
}
return value
}
}
```transformations.append(transform) // cannot convert value of type '(Pipeline<T>.Output) -> U' (aka '(T) -> U') to expected argument type '(T) -> T'return Pipeline<U>(value: value) // cannot convert value of type 'T' to expected argument type 'U'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(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 var 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 {
typealias Output = T
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(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 var 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 {
typealias Output = T
private var value: Output
private var transformations: [(Output) -> Output] = []
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
transformations.reduce(value) { result, transform in
transform(result)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: Output
private var transformations: [(Output) -> Output] = []
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> Output {
transformations.reduce(value) { result, transform in
transform(result)
}
}
}
```transformations.append(transform) // cannot convert value of type '(Pipeline<T>.Output) -> U' (aka '(T) -> U') to expected argument type '(T) -> T'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: 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 var 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 {
typealias Output = T
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let nextValue = transform(value)
return Pipeline<U>(value: nextValue)
}
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 var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let nextValue = transform(value)
return Pipeline<U>(value: nextValue)
}
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 {
typealias Output = T
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(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 var 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 {
typealias Output = T
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(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 var 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 {
typealias Output = T
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(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 var 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 {
typealias Output = T
private var value: Output
required init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
return Pipeline<U>(value: transform(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 var 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
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
var value: Value {
get {
return value
}
set {
self.value = newValue
notifyObservers()
}
}
}### 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
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
var value: Value {
get {
return value
}
set {
self.value = newValue
notifyObservers()
}
}
}
```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> : ObservablePropertyProtocol {
private var observers: [UUID : (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID : (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { $0(value) }
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
func notifyObservers() {
observers.values.forEach { $0(value) }
}
var wrappedValue: Value {
get { value }
set {
value = newValue
notifyObservers()
}
}
}### 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
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
func notifyObservers() {
observers.values.forEach { $0(value) }
}
var wrappedValue: Value {
get { value }
set {
value = newValue
notifyObservers()
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol '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 {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID : (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { $0(value) }
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID : (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID : (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
observers.values.forEach { $0(value) }
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID : (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers(value: newValue)
}
}
required init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(value: Value) {
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID : (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers(value: newValue)
}
}
required init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(value: Value) {
observers.values.forEach { $0(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
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers(value: newValue)
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(value: Value) {
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers(value: newValue)
}
}
init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(value: Value) {
observers.values.forEach { $0(value) }
}
}
```init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var value: Value
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
func notifyObservers() {
observers.values.forEach { $0(value) }
}
var property: Value {
get {
return value
}
set {
value = newValue
notifyObservers()
}
}
}### 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
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
func notifyObservers() {
observers.values.forEach { $0(value) }
}
var property: Value {
get {
return value
}
set {
value = newValue
notifyObservers()
}
}
}
```private var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol '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 {
return _value
}
set {
_value = newValue
notifyObservers(value: newValue)
}
}
required init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(value: Value) {
observers.values.forEach { $0(value) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers(value: newValue)
}
}
required init(value: Value) {
self._value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers(value: Value) {
observers.values.forEach { $0(value) }
}
}
```protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
var wrappedValue: Value {
get { value }
set { value = clamp(newValue, range) }
}
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = clamp(wrappedValue, range)
self.range = range
}
private func clamp(_ value: Value, _ range: ClosedRange<Value>) -> Value {
return min(max(value, range.lowerBound), range.upperBound)
}
}
```self.value = clamp(wrappedValue, range) // variable 'self.value' used before being initializedenum 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
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<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
}
}
var projectedValue: Logged<Value> {
self
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
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
}
}
var projectedValue: Logged<Value> {
self
}
}
```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
var wrappedValue: T {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T>: LoggedProtocol {
private var value: T
private let logger: (Event, T) -> Void
var wrappedValue: T {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T>: LoggedProtocol {
private var value: T
private let logger: (Event, T) -> Void
var wrappedValue: T {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T>: LoggedProtocol {
private var value: T
private let logger: (Event, T) -> Void
var wrappedValue: T {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.value = wrappedValue
self.logger = logger
}
}
```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 searchText = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
return nil
}
}
```init(provider: WeatherProvider) { // initializer requirement 'init(provider:)' can only be satisfied by a 'required' initializer in non-final class 'WeatherApplication'protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol {
private let provider: WeatherProvider
private var searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchString = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchString.append(character)
case.keyboardDeleteBackwards:
searchString.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchString)
return.success(city: searchString, forecast: forecast)
} catch {
return.failure(city: searchString)
}
}
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 searchString = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchString.append(character)
case.keyboardDeleteBackwards:
searchString.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchString)
return.success(city: searchString, forecast: forecast)
} catch {
return.failure(city: searchString)
}
}
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
required init(provider: WeatherProvider) {
self.provider = provider
}
private var searchQuery = ""
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
required init(provider: WeatherProvider) {
self.provider = provider
}
private var searchQuery = ""
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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
required init(provider: WeatherProvider) {
self.provider = provider
}
private var searchText = ""
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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
required init(provider: WeatherProvider) {
self.provider = provider
}
private var searchText = ""
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
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 searchText = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case.keyboardCharacterSelect(let character):
searchText.append(character)
case.keyboardDeleteBackwards:
searchText.removeLast()
case.searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return.success(city: searchText, forecast: forecast)
} catch {
return.failure(city: searchText)
}
}
return nil
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double
init(balance: Double) {
self.balance = balance
}
var balance: Double {
get async {
return self.balance
}
}
func deposit(amount: Double) async {
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance >= amount {
self.balance -= amount
return true
} else {
return false
}
}
}
```private var balance: Double // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'var balance: Double { // invalid redeclaration of 'balance'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
var balance: Double
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
balance += amount
}
func withdraw(amount: Double) async -> Bool {
if balance >= amount {
balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
var balance: Double {
get async {
return _balance
}
}
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
var balance: Double {
get async {
return _balance
}
}
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}
```protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
var balance: Double {
get async {
return _balance
}
}
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
### Response:
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
var balance: Double {
get async {
return _balance
}
}
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
if _balance >= amount {
_balance -= amount
return true
} else {
return false
}
}
}
```protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
### Response:
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var cachedValue: Value?
private let condition: () -> Bool
private let computeValue: () -> Value
var wrappedValue: Value {
if cachedValue == nil || condition() {
cachedValue = computeValue()
}
return cachedValue!
}
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.computeValue = wrappedValue
self.condition = condition
}
}
```cachedValue = computeValue() // cannot assign to property: 'self' is immutableinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: BitwiseShiftPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: BitwiseShiftPrecedence
}
func >>> <A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: LogicalDisjunctionPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: LogicalDisjunctionPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: LogicalDisjunctionPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: LogicalDisjunctionPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: LogicalDisjunctionPrecedence
}
func >>><A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: LogicalDisjunctionPrecedence
}
func >>><A, B, C>(lhs: @escaping (A) -> B, rhs: @escaping (B) -> C) -> (A) -> C {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: AssignmentPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: BitwiseShiftPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: BitwiseShiftPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: LogicalDisjunctionPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: LogicalDisjunctionPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: BitwiseShiftPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: BitwiseShiftPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}
```infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: BitwiseShiftPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
### Response:
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity: left
higherThan: BitwiseShiftPrecedence
}
func >>> <T, U, V>(lhs: @escaping (T) -> U, rhs: @escaping (U) -> V) -> (T) -> V {
return { rhs(lhs($0)) }
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
### Response:
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
var hasher = SHA256()
var buffer = [UInt8](repeating: 0, count: bufferSize)
while inputStream.hasBytesAvailable {
let bytesRead = inputStream.read(&buffer, maxLength: bufferSize)
if bytesRead > 0 {
hasher.update(data: Data(buffer[0..<bytesRead]))
} else {
break
}
}
return hasher.finalize()
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deinitialize(count: 16)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deinitialize(count: 16)
buffer.deallocate()
}
}
```buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15]) // 'initialize(from:)' is unavailable: it will be removed in Swift 5.0. Please use 'UnsafeMutableBufferPointer.initialize(from:)' insteadtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self.init(cString: buffer)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self.init(cString: buffer)
buffer.deallocate()
}
}
```buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15]) // 'initialize(from:)' is unavailable: it will be removed in Swift 5.0. Please use 'UnsafeMutableBufferPointer.initialize(from:)' insteadtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deinitialize(count: 16)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deinitialize(count: 16)
buffer.deallocate()
}
}
```buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15]) // 'initialize(from:)' is unavailable: it will be removed in Swift 5.0. Please use 'UnsafeMutableBufferPointer.initialize(from:)' insteadtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15], count: 16)
self = String(cString: buffer)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15], count: 16)
self = String(cString: buffer)
buffer.deallocate()
}
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deallocate()
}
}
```buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15]) // 'initialize(from:)' is unavailable: it will be removed in Swift 5.0. Please use 'UnsafeMutableBufferPointer.initialize(from:)' insteadtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deallocate()
}
}
```buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15]) // 'initialize(from:)' is unavailable: it will be removed in Swift 5.0. Please use 'UnsafeMutableBufferPointer.initialize(from:)' insteadtypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15], count: 16)
self = String(cString: buffer)
buffer.deinitialize(count: 16)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15], count: 16)
self = String(cString: buffer)
buffer.deinitialize(count: 16)
buffer.deallocate()
}
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15], count: 16)
self.init(cString: buffer)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15], count: 16)
self.init(cString: buffer)
buffer.deallocate()
}
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15], count: 16)
self.init(cString: buffer)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15], count: 16)
self.init(cString: buffer)
buffer.deallocate()
}
}
```typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deinitialize(count: 16)
buffer.deallocate()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
### Response:
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let buffer = UnsafeMutablePointer<Int8>.allocate(capacity: 16)
buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15])
self = String(cString: buffer)
buffer.deinitialize(count: 16)
buffer.deallocate()
}
}
```buffer.initialize(from: [tuple16.0, tuple16.1, tuple16.2, tuple16.3, tuple16.4, tuple16.5, tuple16.6, tuple16.7, tuple16.8, tuple16.9, tuple16.10, tuple16.11, tuple16.12, tuple16.13, tuple16.14, tuple16.15]) // 'initialize(from:)' is unavailable: it will be removed in Swift 5.0. Please use 'UnsafeMutableBufferPointer.initialize(from:)' insteadimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight {
return false
}
let lhsPixelFormatType = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormatType = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormatType!= rhsPixelFormatType {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow!= rhsBytesPerRow {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)!
let rhsData = CVPixelBufferGetBaseAddress(rhs)!
return memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight {
return false
}
let lhsPixelFormatType = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormatType = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormatType!= rhsPixelFormatType {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow!= rhsBytesPerRow {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)!
let rhsData = CVPixelBufferGetBaseAddress(rhs)!
return memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
}
```if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // use of '=' in a boolean context, did you mean '=='?if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // '=' must have consistent whitespace on both sidesif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // type 'Int' cannot be used as a boolean; test for '!= 0' insteadif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // type 'Int' cannot be used as a boolean; test for '!= 0' insteadif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot force unwrap value of non-optional type 'Int'if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot assign value of type '()' to type 'Int'if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // '=' must have consistent whitespace on both sidesif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot force unwrap value of non-optional type 'Int'if lhsPixelFormatType!= rhsPixelFormatType { // cannot force unwrap value of non-optional type 'OSType' (aka 'UInt32')if lhsPixelFormatType!= rhsPixelFormatType { // '=' must have consistent whitespace on both sidesif lhsPixelFormatType!= rhsPixelFormatType { // use of '=' in a boolean context, did you mean '=='?if lhsBytesPerRow!= rhsBytesPerRow { // cannot force unwrap value of non-optional type 'Int'if lhsBytesPerRow!= rhsBytesPerRow { // use of '=' in a boolean context, did you mean '=='?if lhsBytesPerRow!= rhsBytesPerRow { // '=' must have consistent whitespace on both sidesimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight {
return false
}
let lhsPixelFormatType = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormatType = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormatType!= rhsPixelFormatType {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)!
let rhsData = CVPixelBufferGetBaseAddress(rhs)!
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let byteCount = lhsHeight * lhsBytesPerRow
return memcmp(lhsData, rhsData, byteCount) == 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight {
return false
}
let lhsPixelFormatType = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormatType = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormatType!= rhsPixelFormatType {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)!
let rhsData = CVPixelBufferGetBaseAddress(rhs)!
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
let byteCount = lhsHeight * lhsBytesPerRow
return memcmp(lhsData, rhsData, byteCount) == 0
}
```if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // use of '=' in a boolean context, did you mean '=='?if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // '=' must have consistent whitespace on both sidesif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // type 'Int' cannot be used as a boolean; test for '!= 0' insteadif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // type 'Int' cannot be used as a boolean; test for '!= 0' insteadif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot force unwrap value of non-optional type 'Int'if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot assign value of type '()' to type 'Int'if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // '=' must have consistent whitespace on both sidesif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot force unwrap value of non-optional type 'Int'if lhsPixelFormatType!= rhsPixelFormatType { // '=' must have consistent whitespace on both sidesif lhsPixelFormatType!= rhsPixelFormatType { // cannot force unwrap value of non-optional type 'OSType' (aka 'UInt32')if lhsPixelFormatType!= rhsPixelFormatType { // use of '=' in a boolean context, did you mean '=='?import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
if equalSize && equalFormat {
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
var lhsData: UnsafeMutablePointer<Void>?
var rhsData: UnsafeMutablePointer<Void>?
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
equalContent = memcmp(lhsData, rhsData, min(lhsBytesPerRow, rhsBytesPerRow)) == 0
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
}
return equalSize && equalFormat && equalContent
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
if equalSize && equalFormat {
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
var lhsData: UnsafeMutablePointer<Void>?
var rhsData: UnsafeMutablePointer<Void>?
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
equalContent = memcmp(lhsData, rhsData, min(lhsBytesPerRow, rhsBytesPerRow)) == 0
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
}
return equalSize && equalFormat && equalContent
}
```var lhsData: UnsafeMutablePointer<Void>? // UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointervar rhsData: UnsafeMutablePointer<Void>? // UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointerlhsData = CVPixelBufferGetBaseAddress(lhs) // cannot assign value of type 'UnsafeMutableRawPointer?' to type 'UnsafeMutablePointer<Void>?'rhsData = CVPixelBufferGetBaseAddress(rhs) // cannot assign value of type 'UnsafeMutableRawPointer?' to type 'UnsafeMutablePointer<Void>?'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow == rhsBytesPerRow {
let lhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: lhsBytesPerRow * lhsHeight)
let rhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: rhsBytesPerRow * rhsHeight)
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
memcpy(lhsData, CVPixelBufferGetBaseAddress(lhs), lhsBytesPerRow * lhsHeight)
memcpy(rhsData, CVPixelBufferGetBaseAddress(rhs), rhsBytesPerRow * rhsHeight)
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
equalContent = memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
lhsData.deallocate()
rhsData.deallocate()
}
return equalSize && equalFormat && equalContent
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow == rhsBytesPerRow {
let lhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: lhsBytesPerRow * lhsHeight)
let rhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: rhsBytesPerRow * rhsHeight)
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
memcpy(lhsData, CVPixelBufferGetBaseAddress(lhs), lhsBytesPerRow * lhsHeight)
memcpy(rhsData, CVPixelBufferGetBaseAddress(rhs), rhsBytesPerRow * rhsHeight)
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
equalContent = memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
lhsData.deallocate()
rhsData.deallocate()
}
return equalSize && equalFormat && equalContent
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
var lhsData: UnsafeMutableRawPointer?
var rhsData: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
if lhsData!= nil && rhsData!= nil {
equalContent = memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
}
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
return equalSize && equalFormat && equalContent
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
var lhsData: UnsafeMutableRawPointer?
var rhsData: UnsafeMutableRawPointer?
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
if lhsData!= nil && rhsData!= nil {
equalContent = memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
}
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
return equalSize && equalFormat && equalContent
}
```if lhsData!= nil && rhsData!= nil { // 'nil' is not compatible with expected argument type 'Bool'if lhsData!= nil && rhsData!= nil { // '=' must have consistent whitespace on both sidesif lhsData!= nil && rhsData!= nil { // '=' must have consistent whitespace on both sidesif lhsData!= nil && rhsData!= nil { // cannot assign value of type '()' to type 'UnsafeMutableRawPointer'if lhsData!= nil && rhsData!= nil { // use of '=' in a boolean context, did you mean '=='?if lhsData!= nil && rhsData!= nil { // cannot convert value of type 'UnsafeMutableRawPointer' to expected argument type 'Bool'if lhsData!= nil && rhsData!= nil { // 'nil' cannot be assigned to type 'Bool'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
var lhsData: UnsafeMutablePointer<Void>?
var rhsData: UnsafeMutablePointer<Void>?
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
if lhsData!= nil && rhsData!= nil {
let lhsDataPointer = UnsafePointer<UInt8>(lhsData)
let rhsDataPointer = UnsafePointer<UInt8>(rhsData)
if memcmp(lhsDataPointer, rhsDataPointer, lhsHeight * lhsBytesPerRow) == 0 {
equalContent = true
}
}
return equalSize && equalFormat && equalContent
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
var lhsData: UnsafeMutablePointer<Void>?
var rhsData: UnsafeMutablePointer<Void>?
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
lhsData = CVPixelBufferGetBaseAddress(lhs)
rhsData = CVPixelBufferGetBaseAddress(rhs)
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
if lhsData!= nil && rhsData!= nil {
let lhsDataPointer = UnsafePointer<UInt8>(lhsData)
let rhsDataPointer = UnsafePointer<UInt8>(rhsData)
if memcmp(lhsDataPointer, rhsDataPointer, lhsHeight * lhsBytesPerRow) == 0 {
equalContent = true
}
}
return equalSize && equalFormat && equalContent
}
```var lhsData: UnsafeMutablePointer<Void>? // UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointervar rhsData: UnsafeMutablePointer<Void>? // UnsafeMutablePointer<Void> has been replaced by UnsafeMutableRawPointerlhsData = CVPixelBufferGetBaseAddress(lhs) // cannot assign value of type 'UnsafeMutableRawPointer?' to type 'UnsafeMutablePointer<Void>?'rhsData = CVPixelBufferGetBaseAddress(rhs) // cannot assign value of type 'UnsafeMutableRawPointer?' to type 'UnsafeMutablePointer<Void>?'if lhsData!= nil && rhsData!= nil { // '=' must have consistent whitespace on both sidesif lhsData!= nil && rhsData!= nil { // '=' must have consistent whitespace on both sidesif lhsData!= nil && rhsData!= nil { // use of '=' in a boolean context, did you mean '=='?if lhsData!= nil && rhsData!= nil { // cannot convert value of type 'UnsafeMutablePointer<Void>' to expected argument type 'Bool'if lhsData!= nil && rhsData!= nil { // 'nil' is not compatible with expected argument type 'Bool'if lhsData!= nil && rhsData!= nil { // cannot assign value of type '()' to type 'UnsafeMutablePointer<Void>'if lhsData!= nil && rhsData!= nil { // 'nil' cannot be assigned to type 'Bool'let lhsDataPointer = UnsafePointer<UInt8>(lhsData) // cannot convert value of type 'UnsafeMutablePointer<Void>?' to expected argument type 'UnsafePointer<UInt8>?' because initializer 'init(_:)' was not imported from C headerlet rhsDataPointer = UnsafePointer<UInt8>(rhsData) // cannot convert value of type 'UnsafeMutablePointer<Void>?' to expected argument type 'UnsafePointer<UInt8>?' because initializer 'init(_:)' was not imported from C headerimport CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight {
return false
}
let lhsPixelFormatType = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormatType = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormatType!= rhsPixelFormatType {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow!= rhsBytesPerRow {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)!
let rhsData = CVPixelBufferGetBaseAddress(rhs)!
let lhsDataLength = CVPixelBufferGetDataSize(lhs)
let rhsDataLength = CVPixelBufferGetDataSize(rhs)
if lhsDataLength!= rhsDataLength {
return false
}
return memcmp(lhsData, rhsData, lhsDataLength) == 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight {
return false
}
let lhsPixelFormatType = CVPixelBufferGetPixelFormatType(lhs)
let rhsPixelFormatType = CVPixelBufferGetPixelFormatType(rhs)
if lhsPixelFormatType!= rhsPixelFormatType {
return false
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow!= rhsBytesPerRow {
return false
}
let lhsData = CVPixelBufferGetBaseAddress(lhs)!
let rhsData = CVPixelBufferGetBaseAddress(rhs)!
let lhsDataLength = CVPixelBufferGetDataSize(lhs)
let rhsDataLength = CVPixelBufferGetDataSize(rhs)
if lhsDataLength!= rhsDataLength {
return false
}
return memcmp(lhsData, rhsData, lhsDataLength) == 0
}
```if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // use of '=' in a boolean context, did you mean '=='?if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // '=' must have consistent whitespace on both sidesif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // type 'Int' cannot be used as a boolean; test for '!= 0' insteadif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // type 'Int' cannot be used as a boolean; test for '!= 0' insteadif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot force unwrap value of non-optional type 'Int'if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot assign value of type '()' to type 'Int'if lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // '=' must have consistent whitespace on both sidesif lhsWidth!= rhsWidth || lhsHeight!= rhsHeight { // cannot force unwrap value of non-optional type 'Int'if lhsPixelFormatType!= rhsPixelFormatType { // '=' must have consistent whitespace on both sidesif lhsPixelFormatType!= rhsPixelFormatType { // cannot force unwrap value of non-optional type 'OSType' (aka 'UInt32')if lhsPixelFormatType!= rhsPixelFormatType { // use of '=' in a boolean context, did you mean '=='?if lhsBytesPerRow!= rhsBytesPerRow { // use of '=' in a boolean context, did you mean '=='?if lhsBytesPerRow!= rhsBytesPerRow { // '=' must have consistent whitespace on both sidesif lhsBytesPerRow!= rhsBytesPerRow { // cannot force unwrap value of non-optional type 'Int'if lhsDataLength!= rhsDataLength { // '=' must have consistent whitespace on both sidesif lhsDataLength!= rhsDataLength { // cannot force unwrap value of non-optional type 'Int'if lhsDataLength!= rhsDataLength { // use of '=' in a boolean context, did you mean '=='?import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow == rhsBytesPerRow {
let lhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: lhsBytesPerRow * lhsHeight)
let rhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: rhsBytesPerRow * rhsHeight)
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
memcpy(lhsData, CVPixelBufferGetBaseAddress(lhs), lhsBytesPerRow * lhsHeight)
memcpy(rhsData, CVPixelBufferGetBaseAddress(rhs), rhsBytesPerRow * rhsHeight)
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
equalContent = memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
lhsData.deallocate()
rhsData.deallocate()
}
return equalSize && equalFormat && equalContent
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow == rhsBytesPerRow {
let lhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: lhsBytesPerRow * lhsHeight)
let rhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: rhsBytesPerRow * rhsHeight)
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
memcpy(lhsData, CVPixelBufferGetBaseAddress(lhs), lhsBytesPerRow * lhsHeight)
memcpy(rhsData, CVPixelBufferGetBaseAddress(rhs), rhsBytesPerRow * rhsHeight)
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
equalContent = memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
lhsData.deallocate()
rhsData.deallocate()
}
return equalSize && equalFormat && equalContent
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
if equalSize && equalFormat {
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if memcmp(lhsBaseAddress, rhsBaseAddress, min(lhsBytesPerRow, rhsBytesPerRow)) == 0 {
equalContent = true
}
}
return equalSize && equalFormat && equalContent
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
if equalSize && equalFormat {
let lhsBaseAddress = CVPixelBufferGetBaseAddress(lhs)
let rhsBaseAddress = CVPixelBufferGetBaseAddress(rhs)
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if memcmp(lhsBaseAddress, rhsBaseAddress, min(lhsBytesPerRow, rhsBytesPerRow)) == 0 {
equalContent = true
}
}
return equalSize && equalFormat && equalContent
}
```import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow == rhsBytesPerRow {
let lhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: lhsBytesPerRow * lhsHeight)
let rhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: rhsBytesPerRow * rhsHeight)
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
memcpy(lhsData, CVPixelBufferGetBaseAddress(lhs), lhsBytesPerRow * lhsHeight)
memcpy(rhsData, CVPixelBufferGetBaseAddress(rhs), rhsBytesPerRow * rhsHeight)
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
equalContent = memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
lhsData.deallocate()
rhsData.deallocate()
}
return equalSize && equalFormat && equalContent
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
### Response:
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
var equalSize = false
var equalFormat = false
var equalContent = false
let lhsWidth = CVPixelBufferGetWidth(lhs)
let lhsHeight = CVPixelBufferGetHeight(lhs)
let rhsWidth = CVPixelBufferGetWidth(rhs)
let rhsHeight = CVPixelBufferGetHeight(rhs)
if lhsWidth == rhsWidth && lhsHeight == rhsHeight {
equalSize = true
}
let lhsFormat = CVPixelBufferGetPixelFormatType(lhs)
let rhsFormat = CVPixelBufferGetPixelFormatType(rhs)
if lhsFormat == rhsFormat {
equalFormat = true
}
let lhsBytesPerRow = CVPixelBufferGetBytesPerRow(lhs)
let rhsBytesPerRow = CVPixelBufferGetBytesPerRow(rhs)
if lhsBytesPerRow == rhsBytesPerRow {
let lhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: lhsBytesPerRow * lhsHeight)
let rhsData = UnsafeMutablePointer<UInt8>.allocate(capacity: rhsBytesPerRow * rhsHeight)
CVPixelBufferLockBaseAddress(lhs,.readOnly)
CVPixelBufferLockBaseAddress(rhs,.readOnly)
memcpy(lhsData, CVPixelBufferGetBaseAddress(lhs), lhsBytesPerRow * lhsHeight)
memcpy(rhsData, CVPixelBufferGetBaseAddress(rhs), rhsBytesPerRow * rhsHeight)
CVPixelBufferUnlockBaseAddress(lhs,.readOnly)
CVPixelBufferUnlockBaseAddress(rhs,.readOnly)
equalContent = memcmp(lhsData, rhsData, lhsBytesPerRow * lhsHeight) == 0
lhsData.deallocate()
rhsData.deallocate()
}
return equalSize && equalFormat && equalContent
}
```struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items.withUnsafeBufferPointer({ $0.baseAddress }), count: items.count)
return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count))
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items.withUnsafeBufferPointer({ $0.baseAddress }), count: items.count)
return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count))
}
```return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count)) // initializer 'init(_:)' requires the types 'PublicItem' and 'PrivateItem' be equivalentstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items.withUnsafeBufferPointer({ $0.baseAddress }), count: items.count)
return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count))
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items.withUnsafeBufferPointer({ $0.baseAddress }), count: items.count)
return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count))
}
```return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count)) // initializer 'init(_:)' requires the types 'PublicItem' and 'PrivateItem' be equivalentstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}
``` // Fatal error: Can't unsafeBitCast between types of different sizesstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}
``` // Fatal error: Can't unsafeBitCast between types of different sizesstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}
``` // Fatal error: Can't unsafeBitCast between types of different sizesstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}
``` // Fatal error: Can't unsafeBitCast between types of different sizesstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items.withUnsafeBufferPointer({ $0.baseAddress }), count: items.count)
return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count))
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
let buffer = UnsafeBufferPointer(start: items.withUnsafeBufferPointer({ $0.baseAddress }), count: items.count)
return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count))
}
```return Array(UnsafeBufferPointer(start: UnsafePointer(buffer.baseAddress), count: buffer.count)) // initializer 'init(_:)' requires the types 'PublicItem' and 'PrivateItem' be equivalentstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}
``` // Fatal error: Can't unsafeBitCast between types of different sizesstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}
``` // Fatal error: Can't unsafeBitCast between types of different sizesstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
### Response:
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.withUnsafeBufferPointer { privateBuffer in
return unsafeBitCast(privateBuffer, to: [PublicItem].self)
}
}
``` // Fatal error: Can't unsafeBitCast between types of different sizesenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent!= rhsComponent {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return.orderedAscending
} else if lhsInt > rhsInt {
return.orderedDescending
}
} else {
let lhsTag = getTag(lhsComponent)
let rhsTag = getTag(rhsComponent)
if lhsTag < rhsTag {
return.orderedAscending
} else if lhsTag > rhsTag {
return.orderedDescending
}
}
}
}
return.orderedSame
}
func getTag(_ component: String) -> Int {
switch component {
case "alpha":
return 0
case "beta":
return 1
default:
return 2
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent!= rhsComponent {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return.orderedAscending
} else if lhsInt > rhsInt {
return.orderedDescending
}
} else {
let lhsTag = getTag(lhsComponent)
let rhsTag = getTag(rhsComponent)
if lhsTag < rhsTag {
return.orderedAscending
} else if lhsTag > rhsTag {
return.orderedDescending
}
}
}
}
return.orderedSame
}
func getTag(_ component: String) -> Int {
switch component {
case "alpha":
return 0
case "beta":
return 1
default:
return 2
}
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expression of type 'String' is unusedif lhsComponent!= rhsComponent { // '=' must have consistent whitespace on both sidesif lhsComponent!= rhsComponent { // use of '=' in a boolean context, did you mean '=='?enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0"
if lhsComponent.hasPrefix("alpha") || lhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if rhsComponent.hasPrefix("alpha") || rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
let lhsNumber = Int(lhsComponent)?? 0
let rhsNumber = Int(rhsComponent)?? 0
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0"
if lhsComponent.hasPrefix("alpha") || lhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if rhsComponent.hasPrefix("alpha") || rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
let lhsNumber = Int(lhsComponent)?? 0
let rhsNumber = Int(rhsComponent)?? 0
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
}
return.orderedSame
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // expression of type 'String' is unusedlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsNumber = Int(lhsComponent)?? 0 // integer literal is unusedlet lhsNumber = Int(lhsComponent)?? 0 // consecutive statements on a line must be separated by ';'let lhsNumber = Int(lhsComponent)?? 0 // cannot use optional chaining on non-optional value of type 'Int'let rhsNumber = Int(rhsComponent)?? 0 // consecutive statements on a line must be separated by ';'let rhsNumber = Int(rhsComponent)?? 0 // integer literal is unusedlet rhsNumber = Int(rhsComponent)?? 0 // cannot use optional chaining on non-optional value of type 'Int'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for index in 0..<maxCount {
let lhsComponent = index < lhsComponents.count? lhsComponents[index] : ""
let rhsComponent = index < rhsComponents.count? rhsComponents[index] : ""
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
if let lhsNumber = Int(lhsComponent), let rhsNumber = Int(rhsComponent) {
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
} else if lhsComponent.isEmpty &&!rhsComponent.isEmpty {
return.orderedAscending
} else if!lhsComponent.isEmpty && rhsComponent.isEmpty {
return.orderedDescending
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for index in 0..<maxCount {
let lhsComponent = index < lhsComponents.count? lhsComponents[index] : ""
let rhsComponent = index < rhsComponents.count? rhsComponents[index] : ""
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
if let lhsNumber = Int(lhsComponent), let rhsNumber = Int(rhsComponent) {
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
} else if lhsComponent.isEmpty &&!rhsComponent.isEmpty {
return.orderedAscending
} else if!lhsComponent.isEmpty && rhsComponent.isEmpty {
return.orderedDescending
}
}
return.orderedSame
}
```let lhsComponent = index < lhsComponents.count? lhsComponents[index] : "" // expected expressionlet lhsComponent = index < lhsComponents.count? lhsComponents[index] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = index < lhsComponents.count? lhsComponents[index] : "" // cannot use optional chaining on non-optional value of type 'Int'let lhsComponent = index < lhsComponents.count? lhsComponents[index] : "" // expression of type 'String' is unusedlet lhsComponent = index < lhsComponents.count? lhsComponents[index] : "" // consecutive statements on a line must be separated by ';'let lhsComponent = index < lhsComponents.count? lhsComponents[index] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = index < rhsComponents.count? rhsComponents[index] : "" // expected expressionlet rhsComponent = index < rhsComponents.count? rhsComponents[index] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = index < rhsComponents.count? rhsComponents[index] : "" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = index < rhsComponents.count? rhsComponents[index] : "" // expression of type 'String' is unusedlet rhsComponent = index < rhsComponents.count? rhsComponents[index] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = index < rhsComponents.count? rhsComponents[index] : "" // consecutive statements on a line must be separated by ';'if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") { // expected expression, var, or let in 'if' condition} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") { // expected expression, var, or let in 'if' condition} else if lhsComponent.isEmpty &&!rhsComponent.isEmpty { // expected '{' after 'if' condition} else if!lhsComponent.isEmpty && rhsComponent.isEmpty { // expected expression, var, or let in 'if' conditionenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
if let lhsNumber = Int(lhsComponent), let rhsNumber = Int(rhsComponent) {
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
} else if lhsComponent.isEmpty &&!rhsComponent.isEmpty {
return.orderedAscending
} else if!lhsComponent.isEmpty && rhsComponent.isEmpty {
return.orderedDescending
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
if let lhsNumber = Int(lhsComponent), let rhsNumber = Int(rhsComponent) {
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
} else if lhsComponent.isEmpty &&!rhsComponent.isEmpty {
return.orderedAscending
} else if!lhsComponent.isEmpty && rhsComponent.isEmpty {
return.orderedDescending
}
}
return.orderedSame
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expression of type 'String' is unusedif lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") { // expected expression, var, or let in 'if' condition} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") { // expected expression, var, or let in 'if' condition} else if lhsComponent.isEmpty &&!rhsComponent.isEmpty { // expected '{' after 'if' condition} else if!lhsComponent.isEmpty && rhsComponent.isEmpty { // expected expression, var, or let in 'if' conditionenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent == rhsComponent {
continue
}
if let lhsNumber = Int(lhsComponent), let rhsNumber = Int(rhsComponent) {
if lhsNumber < rhsNumber {
return.orderedAscending
} else {
return.orderedDescending
}
}
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
}
if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
if lhsComponent < rhsComponent {
return.orderedAscending
} else {
return.orderedDescending
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent == rhsComponent {
continue
}
if let lhsNumber = Int(lhsComponent), let rhsNumber = Int(rhsComponent) {
if lhsNumber < rhsNumber {
return.orderedAscending
} else {
return.orderedDescending
}
}
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
}
if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
if lhsComponent < rhsComponent {
return.orderedAscending
} else {
return.orderedDescending
}
}
return.orderedSame
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expression of type 'String' is unusedif lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") { // expected expression, var, or let in 'if' conditionif lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") { // expected expression, var, or let in 'if' conditionenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
let lhsNumber = Int(lhsComponent.filter { $0.isNumber })?? 0
let rhsNumber = Int(rhsComponent.filter { $0.isNumber })?? 0
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
let lhsNumber = Int(lhsComponent.filter { $0.isNumber })?? 0
let rhsNumber = Int(rhsComponent.filter { $0.isNumber })?? 0
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
}
return.orderedSame
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expression of type 'String' is unusedlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") { // expected expression, var, or let in 'if' condition} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") { // expected expression, var, or let in 'if' conditionlet lhsNumber = Int(lhsComponent.filter { $0.isNumber })?? 0 // integer literal is unusedlet lhsNumber = Int(lhsComponent.filter { $0.isNumber })?? 0 // cannot use optional chaining on non-optional value of type 'Int'let lhsNumber = Int(lhsComponent.filter { $0.isNumber })?? 0 // consecutive statements on a line must be separated by ';'let rhsNumber = Int(rhsComponent.filter { $0.isNumber })?? 0 // cannot use optional chaining on non-optional value of type 'Int'let rhsNumber = Int(rhsComponent.filter { $0.isNumber })?? 0 // consecutive statements on a line must be separated by ';'let rhsNumber = Int(rhsComponent.filter { $0.isNumber })?? 0 // integer literal is unusedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
if let lhsNumber = Int(lhsComponent), let rhsNumber = Int(rhsComponent) {
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
} else if lhsComponent!= rhsComponent {
return.orderedSame
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") {
return.orderedDescending
} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") {
return.orderedAscending
} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") {
return.orderedDescending
}
if let lhsNumber = Int(lhsComponent), let rhsNumber = Int(rhsComponent) {
if lhsNumber < rhsNumber {
return.orderedAscending
} else if lhsNumber > rhsNumber {
return.orderedDescending
}
} else if lhsComponent!= rhsComponent {
return.orderedSame
}
}
return.orderedSame
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expression of type 'String' is unusedif lhsComponent.hasPrefix("alpha") &&!rhsComponent.hasPrefix("alpha") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("alpha") && rhsComponent.hasPrefix("alpha") { // expected expression, var, or let in 'if' condition} else if lhsComponent.hasPrefix("beta") &&!rhsComponent.hasPrefix("beta") { // expected '{' after 'if' condition} else if!lhsComponent.hasPrefix("beta") && rhsComponent.hasPrefix("beta") { // expected expression, var, or let in 'if' condition} else if lhsComponent!= rhsComponent { // '=' must have consistent whitespace on both sides} else if lhsComponent!= rhsComponent { // use of '=' in a boolean context, did you mean '=='?enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0"
if lhsComponent == rhsComponent {
continue
}
let lhsNumber = Int(lhsComponent)?? 0
let rhsNumber = Int(rhsComponent)?? 0
if lhsNumber < rhsNumber {
return.orderedAscending
} else {
return.orderedDescending
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0"
if lhsComponent == rhsComponent {
continue
}
let lhsNumber = Int(lhsComponent)?? 0
let rhsNumber = Int(rhsComponent)?? 0
if lhsNumber < rhsNumber {
return.orderedAscending
} else {
return.orderedDescending
}
}
return.orderedSame
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // expression of type 'String' is unusedlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsNumber = Int(lhsComponent)?? 0 // cannot use optional chaining on non-optional value of type 'Int'let lhsNumber = Int(lhsComponent)?? 0 // consecutive statements on a line must be separated by ';'let lhsNumber = Int(lhsComponent)?? 0 // integer literal is unusedlet rhsNumber = Int(rhsComponent)?? 0 // integer literal is unusedlet rhsNumber = Int(rhsComponent)?? 0 // consecutive statements on a line must be separated by ';'let rhsNumber = Int(rhsComponent)?? 0 // cannot use optional chaining on non-optional value of type 'Int'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0"
if lhsComponent == rhsComponent {
continue
}
let lhsNumber = Int(lhsComponent)?? 0
let rhsNumber = Int(rhsComponent)?? 0
if lhsNumber < rhsNumber {
return.orderedAscending
} else {
return.orderedDescending
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0"
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0"
if lhsComponent == rhsComponent {
continue
}
let lhsNumber = Int(lhsComponent)?? 0
let rhsNumber = Int(rhsComponent)?? 0
if lhsNumber < rhsNumber {
return.orderedAscending
} else {
return.orderedDescending
}
}
return.orderedSame
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "0" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // expression of type 'String' is unusedlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // cannot use optional chaining on non-optional value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "0" // consecutive statements on a line must be separated by ';'let lhsNumber = Int(lhsComponent)?? 0 // cannot use optional chaining on non-optional value of type 'Int'let lhsNumber = Int(lhsComponent)?? 0 // consecutive statements on a line must be separated by ';'let lhsNumber = Int(lhsComponent)?? 0 // integer literal is unusedlet rhsNumber = Int(rhsComponent)?? 0 // integer literal is unusedlet rhsNumber = Int(rhsComponent)?? 0 // consecutive statements on a line must be separated by ';'let rhsNumber = Int(rhsComponent)?? 0 // cannot use optional chaining on non-optional value of type 'Int'enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent!= rhsComponent {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return.orderedAscending
} else {
return.orderedDescending
}
} else {
let components = lhsComponent.components(separatedBy: "-")
let lhsVersion = components[0]
let lhsTag = components.count > 1? components[1] : ""
let components = rhsComponent.components(separatedBy: "-")
let rhsVersion = components[0]
let rhsTag = components.count > 1? components[1] : ""
if lhsVersion!= rhsVersion {
return.orderedSame
}
if lhsTag == rhsTag {
return.orderedSame
} else if lhsTag == "alpha" && rhsTag == "beta" {
return.orderedAscending
} else if lhsTag == "beta" && rhsTag == "alpha" {
return.orderedDescending
} else {
return.orderedSame
}
}
}
}
return.orderedSame
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
### Response:
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsComponents = lhs.components(separatedBy: ".")
let rhsComponents = rhs.components(separatedBy: ".")
let maxCount = max(lhsComponents.count, rhsComponents.count)
for i in 0..<maxCount {
let lhsComponent = i < lhsComponents.count? lhsComponents[i] : ""
let rhsComponent = i < rhsComponents.count? rhsComponents[i] : ""
if lhsComponent!= rhsComponent {
if let lhsInt = Int(lhsComponent), let rhsInt = Int(rhsComponent) {
if lhsInt < rhsInt {
return.orderedAscending
} else {
return.orderedDescending
}
} else {
let components = lhsComponent.components(separatedBy: "-")
let lhsVersion = components[0]
let lhsTag = components.count > 1? components[1] : ""
let components = rhsComponent.components(separatedBy: "-")
let rhsVersion = components[0]
let rhsTag = components.count > 1? components[1] : ""
if lhsVersion!= rhsVersion {
return.orderedSame
}
if lhsTag == rhsTag {
return.orderedSame
} else if lhsTag == "alpha" && rhsTag == "beta" {
return.orderedAscending
} else if lhsTag == "beta" && rhsTag == "alpha" {
return.orderedDescending
} else {
return.orderedSame
}
}
}
}
return.orderedSame
}
```let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expression of type 'String' is unusedlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // expected expressionlet lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsComponent = i < lhsComponents.count? lhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expected expressionlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // expression of type 'String' is unusedlet rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // consecutive statements on a line must be separated by ';'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsComponent = i < rhsComponents.count? rhsComponents[i] : "" // cannot use optional chaining on non-optional value of type 'Int'if lhsComponent!= rhsComponent { // use of '=' in a boolean context, did you mean '=='?if lhsComponent!= rhsComponent { // '=' must have consistent whitespace on both sideslet lhsTag = components.count > 1? components[1] : "" // consecutive statements on a line must be separated by ';'let lhsTag = components.count > 1? components[1] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let lhsTag = components.count > 1? components[1] : "" // consecutive statements on a line must be separated by ';'let lhsTag = components.count > 1? components[1] : "" // expected expressionlet lhsTag = components.count > 1? components[1] : "" // cannot use optional chaining on non-optional value of type 'Int'let rhsTag = components.count > 1? components[1] : "" // consecutive statements on a line must be separated by ';'let rhsTag = components.count > 1? components[1] : "" // consecutive statements on a line must be separated by ';'let rhsTag = components.count > 1? components[1] : "" // expected expressionlet rhsTag = components.count > 1? components[1] : "" // value of optional type 'Int?' must be unwrapped to a value of type 'Int'let rhsTag = components.count > 1? components[1] : "" // cannot use optional chaining on non-optional value of type 'Int'if lhsVersion!= rhsVersion { // use of '=' in a boolean context, did you mean '=='?if lhsVersion!= rhsVersion { // '=' must have consistent whitespace on both sides