Metadata
| Key | Value |
|---|---|
| engine | mlx |
| prompt | instruct |
| temp | 0.2 |
| top_p | 0.95 |
| max_new_tokens | 1024 |
| n_completions | 10 |
Solutions
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON{
guard let data = string.data(using: .utf8) else {
throw ParsingError.invalidInput
}
do {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This Swtypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This codetypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This Swtypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This Swtypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This codetypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This codetypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This Swtypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This Swtypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This codetypealias 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} 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 {
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? JSON {
return json
} else {
throw ParsingError.invalidInput
}
} catch {
throw ParsingError.internalError(error)
}
}
```
This codeindirect 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 output = "<\(name)"
for (key, value) in attributes {
output += " \(key)=\"\(value)\""
}
output += ">"
for child in children {
output += generate(child)
}
output += "</\(name)>"
return output
}
}### 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 output = "<\(name)"
for (key, value) in attributes {
output += " \(key)=\"\(value)\""
}
output += ">"
for child in children {
output += generate(child)
}
output += "</\(name)>"
return output
}
}
```
This Swindirect 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
}
}
```
This Swindirect 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
}
}
```
This codeindirect 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
}
}
```
This codeindirect 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
}
}
```
This Swindirect enum HTMLNode {
case text(_ content: String)
case element(_ name: String, attributes: [String : String] = [:], children: [Self] = [])
}
func generate(_ tree: HTMLNode) -> String{
switch tree {
case .text(let content):
return content
case .element(let name, let attributes, let children):
var html = "<\(name)"
for (key, value) in attributes {
html += " \(key)=\"\(value)\""
}
if children.isEmpty {
html += "/>"
} else {
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)\""
}
if children.isEmpty {
html += "/>"
} else {
html += ">"
for child in children {
html += generate(child)
}
html += "</\(name)>"
}
return html
}
}
```
This codeindirect 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
}
}
```
This Swindirect 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
}
}
```
This Swindirect 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
}
}
```
This codeindirect 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
}
}
```
This codeenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operation = [Character]()
var number = ""
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/".contains(char) {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let last = operation.last, "+-*/".contains(last) && precedence(char) <= precedence(last) {
let b = stack.popLast()!
let a = stack.popLast()!
let result = performOperation(a, b, last)
stack.append(result)
operation.removeLast()
}
operation.append(char)
} else if char == "(" {
operation.append(char)
} else if char == ")" {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let last = operation.last, last != "(" {
let b = stack.popLast()!
let a = stack.popLast()!
let result = performOperation(a, b, last)
stack.append(result)
operation.removeLast()
}
operation.removeLast()
}
}
if let num = Double(number) {
stack.append(num)
}
while let last = operation.popLast() {
let b = stack.popLast()!
let a = stack.popLast()!
let result = performOperation(a, b, last)
stack.append(result)
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func precedence(_ operation: Character) -> Int {
switch operation {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
func performOperation(_ a: Double, _ b: Double, _ operation: Character) -> Double {
switch operation {
case "+":
return a + b
case "-":
return a - b
case "*":
return a * b
case "/":
return a / b
default:
fatalError("Invalid operation: \(operation)")
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operation = [Character]()
var number = ""
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/".contains(char) {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let last = operation.last, "+-*/".contains(last) && precedence(char) <= precedence(last) {
let b = stack.popLast()!
let a = stack.popLast()!
let result = performOperation(a, b, last)
stack.append(result)
operation.removeLast()
}
operation.append(char)
} else if char == "(" {
operation.append(char)
} else if char == ")" {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let last = operation.last, last != "(" {
let b = stack.popLast()!
let a = stack.popLast()!
let result = performOperation(a, b, last)
stack.append(result)
operation.removeLast()
}
operation.removeLast()
}
}
if let num = Double(number) {
stack.append(num)
}
while let last = operation.popLast() {
let b = stack.popLast()!
let a = stack.popLast()!
let result = performOperation(a, b, last)
stack.append(result)
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func precedence(_ operation: Character) -> Int {
switch operation {
case "+", "-":
return 1
case "*", "/":
return 2
default:
return 0
}
}
func performOperation(_ a: Double, _ b: Double, _ operation: Character) -> Double {
switch operation {
case "+":
return a + b
case "-":
return a - b
case "*":
return a * b
case "/":
return a / b
default:
fatalError("Invalid operation: \(operation)")
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789.")
let invalidCharacter = string.rangeOfCharacter(from: validCharacters.inverted)
guard invalidCharacter == nil else {
throw CalculateError.invalidInput
}
let expression = NSExpression(format: string)
let result = expression.expressionValue(with: nil, context: nil) as? Double
return result ?? 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 validCharacters = CharacterSet(charactersIn: "+-*/()0123456789.")
let invalidCharacter = string.rangeOfCharacter(from: validCharacters.inverted)
guard invalidCharacter == nil else {
throw CalculateError.invalidInput
}
let expression = NSExpression(format: string)
let result = expression.expressionValue(with: nil, context: nil) as? Double
return result ?? 0
}
```
This Swenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack: [Double] = []
var operationStack: [Character] = []
var currentNumber = ""
func performOperation() {
if let operation = operationStack.popLast() {
let b = stack.popLast() ?? 0
let a = stack.popLast() ?? 0
switch operation {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
break
}
}
}
for char in string {
switch char {
case "0"..."9":
currentNumber.append(char)
case "+", "-", "*", "/":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last,
(lastOperation == "*" || lastOperation == "/") && (char == "+" || char == "-") {
performOperation()
}
operationStack.append(char)
case "(":
operationStack.append(char)
case ")":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation()
}
operationStack.removeLast()
default:
throw CalculateError.invalidInput
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
performOperation()
}
return stack.last ?? 0
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack: [Double] = []
var operationStack: [Character] = []
var currentNumber = ""
func performOperation() {
if let operation = operationStack.popLast() {
let b = stack.popLast() ?? 0
let a = stack.popLast() ?? 0
switch operation {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
break
}
}
}
for char in string {
switch char {
case "0"..."9":
currentNumber.append(char)
case "+", "-", "*", "/":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last,
(lastOperation == "*" || lastOperation == "/") && (char == "+" || char == "-") {
performOperation()
}
operationStack.append(char)
case "(":
operationStack.append(char)
case ")":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation()
}
operationStack.removeLast()
default:
throw CalculateError.invalidInput
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
performOperation()
}
return stack.last ?? 0
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while !operationStack.isEmpty && operationStack.last != "(" {
performOperation(&stack, &operationStack)
}
if operationStack.isEmpty {
throw CalculateError.invalidInput
}
operationStack.removeLast()
} else if let operation = operations[char] {
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while !operationStack.isEmpty && operations[operationStack.last!]! >= operation {
performOperation(&stack, &operationStack)
}
operationStack.append(char)
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
performOperation(&stack, &operationStack)
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.first!
}
func performOperation(_ stack: inout [Double], _ operationStack: inout [Character]) {
let operation = operationStack.removeLast()
guard let second = stack.popLast(), let first = stack.popLast() else {
return
}
switch operation {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
stack.append(first / second)
default:
break
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while !operationStack.isEmpty && operationStack.last != "(" {
performOperation(&stack, &operationStack)
}
if operationStack.isEmpty {
throw CalculateError.invalidInput
}
operationStack.removeLast()
} else if let operation = operations[char] {
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while !operationStack.isEmpty && operations[operationStack.last!]! >= operation {
performOperation(&stack, &operationStack)
}
operationStack.append(char)
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
performOperation(&stack, &operationStack)
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.first!
}
func performOperation(_ stack: inout [Double], _ operationStack: inout [Character]) {
let operation = operationStack.removeLast()
guard let second = stack.popLast(), let first = stack.popLast() else {
return
}
switch operation {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
stack.append(first / second)
default:
break
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operation = [Character]()
var number = ""
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/".contains(char) {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let last = operation.last, "+-*/".contains(last) && precedence(char) <= precedence(last) {
let op = operation.removeLast()
let b = stack.removeLast()
let a = 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: break
}
}
operation.append(char)
} else if char == "(" {
operation.append(char)
} else if char == ")" {
while let last = operation.last, last != "(" {
let op = operation.removeLast()
let b = stack.removeLast()
let a = 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: break
}
}
operation.removeLast()
}
}
if let num = Double(number) {
stack.append(num)
}
while let op = operation.popLast() {
let b = stack.removeLast()
let a = 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: break
}
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func precedence(_ char: Character) -> Int {
switch char {
case "+", "-": return 1
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{
var stack = [Double]()
var operation = [Character]()
var number = ""
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/".contains(char) {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let last = operation.last, "+-*/".contains(last) && precedence(char) <= precedence(last) {
let op = operation.removeLast()
let b = stack.removeLast()
let a = 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: break
}
}
operation.append(char)
} else if char == "(" {
operation.append(char)
} else if char == ")" {
while let last = operation.last, last != "(" {
let op = operation.removeLast()
let b = stack.removeLast()
let a = 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: break
}
}
operation.removeLast()
}
}
if let num = Double(number) {
stack.append(num)
}
while let op = operation.popLast() {
let b = stack.removeLast()
let a = 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: break
}
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func precedence(_ char: Character) -> Int {
switch char {
case "+", "-": return 1
case "*", "/": return 2
default: return 0
}
}
``` // Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while !operationStack.isEmpty && operationStack.last != "(" {
performOperation(&stack, &operationStack)
}
if operationStack.isEmpty {
throw CalculateError.invalidInput
}
operationStack.removeLast()
} else if let operation = operations[char] {
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while !operationStack.isEmpty && operations[operationStack.last!]! >= operation {
performOperation(&stack, &operationStack)
}
operationStack.append(char)
} else {
throw CalculateError.invalidInput
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
performOperation(&stack, &operationStack)
}
if stack.count == 1 {
return stack.first!
} else {
throw CalculateError.invalidInput
}
}
func performOperation(_ stack: inout [Double], _ operationStack: inout [Character]) {
if let operation = operationStack.popLast() {
if let second = stack.popLast(), let first = stack.popLast() {
switch operation {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
stack.append(first / second)
default:
break
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while !operationStack.isEmpty && operationStack.last != "(" {
performOperation(&stack, &operationStack)
}
if operationStack.isEmpty {
throw CalculateError.invalidInput
}
operationStack.removeLast()
} else if let operation = operations[char] {
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while !operationStack.isEmpty && operations[operationStack.last!]! >= operation {
performOperation(&stack, &operationStack)
}
operationStack.append(char)
} else {
throw CalculateError.invalidInput
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
performOperation(&stack, &operationStack)
}
if stack.count == 1 {
return stack.first!
} else {
throw CalculateError.invalidInput
}
}
func performOperation(_ stack: inout [Double], _ operationStack: inout [Character]) {
if let operation = operationStack.popLast() {
if let second = stack.popLast(), let first = stack.popLast() {
switch operation {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
stack.append(first / second)
default:
break
}
}
}
}
``` // Fatal error: Unexpectedly found nil while unwrapping an Optional valueenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operation = [Character]()
var number = ""
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/".contains(char) {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let lastOp = operation.last, "+-*/".contains(lastOp) && precedence(char) <= precedence(lastOp) {
let op = operation.removeLast()
let b = stack.removeLast()
let a = 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: break
}
}
operation.append(char)
} else if char == "(" {
operation.append(char)
} else if char == ")" {
while let lastOp = operation.last, lastOp != "(" {
let op = operation.removeLast()
let b = stack.removeLast()
let a = 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: break
}
}
operation.removeLast()
}
}
if let num = Double(number) {
stack.append(num)
}
while let op = operation.popLast() {
let b = stack.removeLast()
let a = 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: break
}
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func precedence(_ op: Character) -> Int {
switch op {
case "+", "-": return 1
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{
var stack = [Double]()
var operation = [Character]()
var number = ""
for char in string {
if char.isNumber || char == "." {
number.append(char)
} else if "+-*/".contains(char) {
if let num = Double(number) {
stack.append(num)
number = ""
}
while let lastOp = operation.last, "+-*/".contains(lastOp) && precedence(char) <= precedence(lastOp) {
let op = operation.removeLast()
let b = stack.removeLast()
let a = 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: break
}
}
operation.append(char)
} else if char == "(" {
operation.append(char)
} else if char == ")" {
while let lastOp = operation.last, lastOp != "(" {
let op = operation.removeLast()
let b = stack.removeLast()
let a = 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: break
}
}
operation.removeLast()
}
}
if let num = Double(number) {
stack.append(num)
}
while let op = operation.popLast() {
let b = stack.removeLast()
let a = 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: break
}
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func precedence(_ op: Character) -> Int {
switch op {
case "+", "-": return 1
case "*", "/": return 2
default: return 0
}
}
``` // Fatal error: Can't remove last element from an empty collectionenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789.")
let input = string.filter { validCharacters.contains($0.unicodeScalars.first!) }
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
func performOperation() {
if let operation = operationStack.popLast() {
if let second = stack.popLast(), let first = stack.popLast() {
switch operation {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
stack.append(first / second)
default:
break
}
}
}
}
for char in input {
switch char {
case "0"..."9", ".":
currentNumber.append(char)
case "+", "-", "*", "/":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last,
(lastOperation == "*" || lastOperation == "/") && (char == "+" || char == "-") {
performOperation()
}
operationStack.append(char)
case "(":
operationStack.append(char)
case ")":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation()
}
operationStack.removeLast()
default:
break
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
performOperation()
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
let validCharacters = CharacterSet(charactersIn: "+-*/()0123456789.")
let input = string.filter { validCharacters.contains($0.unicodeScalars.first!) }
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
func performOperation() {
if let operation = operationStack.popLast() {
if let second = stack.popLast(), let first = stack.popLast() {
switch operation {
case "+":
stack.append(first + second)
case "-":
stack.append(first - second)
case "*":
stack.append(first * second)
case "/":
stack.append(first / second)
default:
break
}
}
}
}
for char in input {
switch char {
case "0"..."9", ".":
currentNumber.append(char)
case "+", "-", "*", "/":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last,
(lastOperation == "*" || lastOperation == "/") && (char == "+" || char == "-") {
performOperation()
}
operationStack.append(char)
case "(":
operationStack.append(char)
case ")":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation()
}
operationStack.removeLast()
default:
break
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
performOperation()
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
switch char {
case "0"..."9":
currentNumber.append(char)
case "+", "-", "*", "/":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last,
let lastOperationPriority = operations[lastOperation],
let currentOperationPriority = operations[char],
lastOperationPriority >= currentOperationPriority {
performOperation(on: &stack, operation: operationStack.removeLast())
}
operationStack.append(char)
case "(":
operationStack.append(char)
case ")":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation(on: &stack, operation: operationStack.removeLast())
}
if operationStack.last == "(" {
operationStack.removeLast()
} else {
throw CalculateError.invalidInput
}
default:
throw CalculateError.invalidInput
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while let operation = operationStack.popLast() {
performOperation(on: &stack, operation: operation)
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func performOperation(on stack: inout [Double], operation: Character) {
guard let secondOperand = stack.popLast(), let firstOperand = stack.popLast() else {
fatalError("Invalid expression")
}
switch operation {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
stack.append(firstOperand / secondOperand)
default:
fatalError("Invalid operation")
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
switch char {
case "0"..."9":
currentNumber.append(char)
case "+", "-", "*", "/":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last,
let lastOperationPriority = operations[lastOperation],
let currentOperationPriority = operations[char],
lastOperationPriority >= currentOperationPriority {
performOperation(on: &stack, operation: operationStack.removeLast())
}
operationStack.append(char)
case "(":
operationStack.append(char)
case ")":
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
while let lastOperation = operationStack.last, lastOperation != "(" {
performOperation(on: &stack, operation: operationStack.removeLast())
}
if operationStack.last == "(" {
operationStack.removeLast()
} else {
throw CalculateError.invalidInput
}
default:
throw CalculateError.invalidInput
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while let operation = operationStack.popLast() {
performOperation(on: &stack, operation: operation)
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func performOperation(on stack: inout [Double], operation: Character) {
guard let secondOperand = stack.popLast(), let firstOperand = stack.popLast() else {
fatalError("Invalid expression")
}
switch operation {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
stack.append(firstOperand / secondOperand)
default:
fatalError("Invalid operation")
}
}
```enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
try performOperation(&stack, &operationStack)
}
operationStack.removeLast()
} else if let operation = operations[char] {
while let lastOperation = operationStack.last, operations[lastOperation] ?? 0 >= operation {
try performOperation(&stack, &operationStack)
}
operationStack.append(char)
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
try performOperation(&stack, &operationStack)
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func performOperation(_ stack: inout [Double], _ operationStack: inout [Character]) throws {
guard let operation = operationStack.popLast(), let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
switch operation {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
throw CalculateError.invalidInput
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Calculator which supports operations from readable string format.
Valid tokens is "+-*/()", example input is "2+2*2".
### Response:
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double{
var stack = [Double]()
var operationStack = [Character]()
var currentNumber = ""
let operations: [Character: Int] = ["+": 1, "-": 1, "*": 2, "/": 2]
for char in string {
if char.isNumber || char == "." {
currentNumber.append(char)
} else if char == "(" {
operationStack.append(char)
} else if char == ")" {
while let lastOperation = operationStack.last, lastOperation != "(" {
try performOperation(&stack, &operationStack)
}
operationStack.removeLast()
} else if let operation = operations[char] {
while let lastOperation = operationStack.last, operations[lastOperation] ?? 0 >= operation {
try performOperation(&stack, &operationStack)
}
operationStack.append(char)
if let number = Double(currentNumber) {
stack.append(number)
currentNumber = ""
}
}
}
if let number = Double(currentNumber) {
stack.append(number)
}
while !operationStack.isEmpty {
try performOperation(&stack, &operationStack)
}
guard let result = stack.last else {
throw CalculateError.invalidInput
}
return result
}
func performOperation(_ stack: inout [Double], _ operationStack: inout [Character]) throws {
guard let operation = operationStack.popLast(), let b = stack.popLast(), let a = stack.popLast() else {
throw CalculateError.invalidInput
}
switch operation {
case "+":
stack.append(a + b)
case "-":
stack.append(a - b)
case "*":
stack.append(a * b)
case "/":
stack.append(a / b)
default:
throw CalculateError.invalidInput
}
}
``` // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputfunc execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error.localizedDescription)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error.localizedDescription)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.launchPath = binary
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
task.launch()
task.waitUntilExit()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", error.localizedDescription)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
} catch {
return ("", error.localizedDescription)
}
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error.localizedDescription)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error.localizedDescription)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error.localizedDescription)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error.localizedDescription)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: Failed to run task")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: Failed to run task")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: Failed to run task")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: Failed to run task")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: Failed to run task")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: Failed to run task")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
task.waitUntilExit()
return (output, error)
}
```func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error.localizedDescription)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Function to execute binary with arguments.
Returns tuple where first element is stdout and second is stderr.
### Response:
```swift
func execute(binary: String, arguments: [String]) -> (String, String){
let task = Process()
task.executableURL = URL(fileURLWithPath: binary)
task.arguments = arguments
let outputPipe = Pipe()
let errorPipe = Pipe()
task.standardOutput = outputPipe
task.standardError = errorPipe
do {
try task.run()
} catch {
return ("", "Error: \(error.localizedDescription)")
}
let outputData = outputPipe.fileHandleForReading.readDataToEndOfFile()
let errorData = errorPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
let error = String(data: errorData, encoding: .utf8) ?? ""
return (output, error)
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
}
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 result = cache[argument] {
return result
}
let result = function(argument)
cache[argument] = result
return result
}
}
```
This functionfunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} 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 result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} 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 result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```
This functionfunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} 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 result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```
This memofunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} 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 result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```
This functionfunc 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
}
}
}
```
This functionfunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} 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 result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```
This memofunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} 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 result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```
This functionfunc memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U{
var cache: [T: U] = [:]
return { argument in
if let result = cache[argument] {
return result
} 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 result = cache[argument] {
return result
} else {
let result = function(argument)
cache[argument] = result
return result
}
}
}
```
This functionfunc 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
}
}
}
```
This memofunc 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
}
}
}
fatalError("Unreachable code")
}### 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
}
}
}
fatalError("Unreachable code")
}
```
This functionfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
// Handle error if needed
}
}
throw NSError(domain: "Task failed after \(attempts) attempts", code: -1)
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
// Handle error if needed
}
}
throw NSError(domain: "Task failed after \(attempts) attempts", code: -1)
}
```
This functionfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
// Handle error if needed
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
// Handle error if needed
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```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
}
}
}
fatalError("Unreachable code")
}### 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
}
}
}
fatalError("Unreachable code")
}
```
This functionfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```
This codefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
// Handle error if needed
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
// Handle error if needed
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```
This codefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```
This codefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```
This codefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
continue
}
}
throw RetryError.maxAttemptsExceeded
}
enum RetryError: Error {
case maxAttemptsExceeded
}
```
This codefunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
// If this is the last attempt, rethrow the error
if attempts == 1 {
throw error
}
}
}
// This line should never be reached, as the function should return or throw an error in all cases
fatalError("Unreachable code")
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Retry mechanism that retries a task a specified number of times before failing.
### Response:
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T{
for _ in 1...attempts {
do {
return try task()
} catch {
// If this is the last attempt, rethrow the error
if attempts == 1 {
throw error
}
}
}
// This line should never be reached, as the function should return or throw an error in all cases
fatalError("Unreachable code")
}
```
This functionprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}
```
This codeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}
```
This isprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}
```
This codeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}
```
This codeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}
```
This codeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}
```
This codeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}
```
This codeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] else {
return nil
}
return factory() as? T
}
}
```
This simpleprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] as? () -> T else {
return nil
}
return factory()
}
}
```
This simpleprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] else { return nil }
return factory() as? T
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
### Response:
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer:DIContainerProtocol {
private var factories: [String: () -> Any] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
let key = String(describing: type)
factories[key] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
let key = String(describing: type)
guard let factory = factories[key] else { return nil }
return factory() as? T
}
}
```
This codeprotocol 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```
This codeprivate var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```private var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```
This codeprivate var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```
This codeprivate var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```private var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'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 {
var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.from == state && $0.event == event }) {
state = transition.to
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from: from, to: to, event: event))
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
### Response:
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable>: StateMachineProtocol {
var state: State
private var transitions: [(from: State, to: State, event: Event)] = []
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.from == state && $0.event == event }) {
state = transition.to
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from: from, to: to, event: 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```
This codeprivate var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```private var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```private var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, 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 {
var state: State
private var transitions: [(State, Event): State] = [:]
required init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let newState = transitions[(state, event)] {
state = newState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[(from, event)] = to
}
}
```private var transitions: [(State, Event): State] = [:] // type '(State, Event)' does not conform to protocol 'Hashable'if let newState = transitions[(state, event)] { // type '(State, Event)' cannot conform to 'Hashable'transitions[(from, event)] = to // type '(State, Event)' cannot conform to 'Hashable'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(name: _, size: let size):
return size
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(name: _, size: _):
return 1
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(name: _, size: _):
return 0
case .directory(name: _, contents: let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(name: _, size: let size):
return size
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(name: _, size: _):
return 1
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(name: _, size: _):
return 0
case .directory(name: _, contents: let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```
This codereturn 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```
This codecase .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesreturn 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(name: _, size: let size):
return size
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(name: _, size: _):
return 1
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(name: _, size: _):
return 0
case .directory(name: _, contents: let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(name: _, size: let size):
return size
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(name: _, size: _):
return 1
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(name: _, size: _):
return 0
case .directory(name: _, contents: let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```return 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + contents.map { $0.treeDepth }.max() ?? 0
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesreturn 1 + contents.map { $0.treeDepth }.max() ?? 0 // value of optional type 'Int?' must be unwrapped to a value of type 'Int'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```
This Swcase .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(name: _, size: let size):
return size
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(name: _, size: _):
return 1
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(name: _, size: _):
return 1
case .directory(name: _, contents: let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(name: _, size: let size):
return size
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file(name: _, size: _):
return 1
case .directory(name: _, contents: let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file(name: _, size: _):
return 1
case .directory(name: _, contents: let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```case .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesindirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Abstract file system manager and metadata calculation.
Used to calculate total size of all files in file system, files count and file system tree depth.
### Response:
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let _, let size):
return size
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.totalSize }
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return contents.reduce(0) { $0 + $1.filesCount }
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let _, let contents):
return 1 + (contents.map { $0.treeDepth }.max() ?? 0)
}
}
}
```
This codecase .file(let _, let size): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablescase .directory(let _, let contents): // 'let' pattern has no effect; sub-pattern didn't bind any variablesprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements: [Element] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<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] = []
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] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<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] = []
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] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<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]()
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]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<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]()
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]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<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]()
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]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<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] = []
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] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<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<T>: StackProtocol {
private var elements: [T] = []
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<T>: StackProtocol {
private var elements: [T] = []
init() {}
func push(_ element: T) {
elements.append(element)
}
func pop() -> T? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<T>'var stack = Stack<Int>() // variable 'stack' was never mutated; consider changing to 'let' constantprotocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements = [Element]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
### Response:
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element>: StackProtocol {
private var elements = [Element]()
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<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] = []
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] = []
init() {}
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```init() {} // initializer requirement 'init()' can only be satisfied by a 'required' initializer in non-final class 'Stack<Element>'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 }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```
This codeprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```
This codeprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```
This codeprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```
This codeprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```
This codeprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```
This codeprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let element = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
cache[key] = element
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let element = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let keyToRemove = lru.removeFirst()
cache.removeValue(forKey: keyToRemove)
}
cache[key] = element
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private var capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
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 lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let element = cache[key] else { return nil }
lru.removeAll { $0 == key }
lru.append(key)
return element
}
set {
if let newValue = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = newValue
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```
This codeprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
import Foundation
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let element = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = element
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic in-memory cache that follows to the LRU (Least Recently Used) eviction policy.
The cache should have a specified capacity limit, and when this limit is reached, it should remove the least recently used item to make space for new entries.
### Response:
```swift
import Foundation
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element>: CacheProtocol {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var lru: [Key] = []
required init(capacity: Int) {
self.capacity = max(0, capacity)
}
subscript(key: Key) -> Element? {
get {
guard let index = lru.firstIndex(of: key), let element = cache[key] else {
return nil
}
lru.remove(at: index)
lru.append(key)
return element
}
set {
if let element = newValue {
if cache[key] != nil {
lru.removeAll { $0 == key }
} else if lru.count >= capacity {
let leastRecentlyUsedKey = lru.removeFirst()
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = element
lru.append(key)
} else {
cache.removeValue(forKey: key)
lru.removeAll { $0 == key }
}
}
}
}
```
This Swprotocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```
This codeThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```
This codeThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```
This codeThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```
This codeThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```
This codeThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (value: Value, expiration: Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
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) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```
This codeThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], expirationDate > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], expirationDate > Date() else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```
This SwThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} else {
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().addingTimeInterval(expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
guard let (value, expirationDate) = cache[key], Date() < expirationDate else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .greatestFiniteMagnitude)
} else {
cache.removeValue(forKey: key)
}
}
}
}
```
This SwThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock(); defer { lock.unlock() }
cache[key] = (value, Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
lock.lock(); defer { lock.unlock() }
guard let (value, expiration) = cache[key], Date() < expiration else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get { return get(key: key) }
set { if let value = newValue { put(value: value, key: key, expiration: 3600) } }
}
}### 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
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock(); defer { lock.unlock() }
cache[key] = (value, Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
lock.lock(); defer { lock.unlock() }
guard let (value, expiration) = cache[key], Date() < expiration else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get { return get(key: key) }
set { if let value = newValue { put(value: value, key: key, expiration: 3600) } }
}
}
```
This codeThread.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?
}
import Foundation
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock(); defer { lock.unlock() }
cache[key] = (value, Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
lock.lock(); defer { lock.unlock() }
guard let (value, expiration) = cache[key], Date() < expiration else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
lock.lock(); defer { lock.unlock() }
cache.removeValue(forKey: key)
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Caching mechanism with expiration eviction policy.
Subscript methods used for convenient access.
### Response:
```swift
import Foundation
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
private let lock = NSLock()
func put(value: Value, key: Key, expiration: TimeInterval) {
lock.lock(); defer { lock.unlock() }
cache[key] = (value, Date().addingTimeInterval(expiration))
}
func get(key: Key) -> Value? {
lock.lock(); defer { lock.unlock() }
guard let (value, expiration) = cache[key], Date() < expiration else {
cache.removeValue(forKey: key)
return nil
}
return value
}
subscript(key: Key) -> Value? {
get {
return get(key: key)
}
set {
if let value = newValue {
put(value: value, key: key, expiration: .infinity)
} else {
lock.lock(); defer { lock.unlock() }
cache.removeValue(forKey: key)
}
}
}
}
```
This codeThread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
var encryptedData = Data()
for (i, char) in string.enumerated() {
let encryptedChar = char.asciiValue! ^ key[i % key.count].asciiValue!
encryptedData.append(encryptedChar)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedString = ""
for (i, byte) in data.enumerated() {
let decryptedChar = Character(Unicode.Scalar(byte ^ key[i % key.count].asciiValue!))
decryptedString.append(decryptedChar)
}
return decryptedString
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
var encryptedData = Data()
for (i, char) in string.enumerated() {
let encryptedChar = char.asciiValue! ^ key[i % key.count].asciiValue!
encryptedData.append(encryptedChar)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedString = ""
for (i, byte) in data.enumerated() {
let decryptedChar = Character(Unicode.Scalar(byte ^ key[i % key.count].asciiValue!))
decryptedString.append(decryptedChar)
}
return decryptedString
}
}
```let encryptedChar = char.asciiValue! ^ key[i % key.count].asciiValue! // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.let decryptedChar = Character(Unicode.Scalar(byte ^ key[i % key.count].asciiValue!)) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}
```
This codeprotocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}
```
This codeprotocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(repeating: 0, count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8) ?? ""
}
}
```protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Simple XOR encryptor and decryptor that converts plain text into encrypted text by applying the binary 'Exclusive OR' operator implemented according to the protocol.
### Response:
```swift
protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
let data = string.data(using: .utf8)!
let keyData = key.data(using: .utf8)!
var encryptedData = Data(count: data.count)
for i in 0..<data.count {
encryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
let keyData = key.data(using: .utf8)!
var decryptedData = Data(count: data.count)
for i in 0..<data.count {
decryptedData[i] = data[i] ^ keyData[i % keyData.count]
}
return String(data: decryptedData, encoding: .utf8)!
}
}
```protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}
```
This SwThread.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 requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
}
return false
}
}
```
This SwThread.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 requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}
```
This SwThread.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 requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}
```
This SwThread.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 requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
}
return false
}
}
```
This SwThread.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 requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { currentTime - $0 <= timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
}
return false
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { currentTime - $0 <= timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
}
return false
}
}
```
This SwThread.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 requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}
```
This SwThread.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 requestTimes: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
requestTimes = requestTimes.filter { now.timeIntervalSince($0) < timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(now)
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimes: [Date] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let now = Date()
requestTimes = requestTimes.filter { now.timeIntervalSince($0) < timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(now)
return true
} else {
return false
}
}
}
```
This SwThread.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 requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimes: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimes = requestTimes.filter { $0 > currentTime - timeInterval }
if requestTimes.count < maxRequests {
requestTimes.append(currentTime)
return true
} else {
return false
}
}
}
```
This SwThread.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 requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Rate limiter that controls the rate of actions.
Consists with a maximum number of requests and a time interval, and includes a method to determine if a new request can be made within the defined limits.
### Response:
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter:RateLimiterProtocol {
private let maxRequests: Int
private let timeInterval: TimeInterval
private var requestTimestamps: [TimeInterval] = []
required init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
let currentTime = Date().timeIntervalSince1970
requestTimestamps = requestTimestamps.filter { $0 > currentTime - timeInterval }
if requestTimestamps.count < maxRequests {
requestTimestamps.append(currentTime)
return true
} else {
return false
}
}
}
```
This SwThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int
lock.lock()
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()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int
lock.lock()
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()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var currentValue = 0
queue.sync {
currentValue = self.value
}
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 queue = DispatchQueue(label: "com.counter.queue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var currentValue = 0
queue.sync {
currentValue = self.value
}
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()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
lock.lock()
defer {
lock.unlock()
}
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
lock.lock()
defer {
lock.unlock()
}
return value
}
}
```
This codeprotocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int = 0
lock.lock()
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()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int = 0
lock.lock()
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()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let queue = DispatchQueue(label: "com.example.counterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var currentValue: Int = 0
queue.sync {
currentValue = self.value
}
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 queue = DispatchQueue(label: "com.example.counterQueue", attributes: .concurrent)
required init(value: Int) {
self.value = value
}
func increment() {
queue.async(flags: .barrier) {
self.value += 1
}
}
func currentValue() -> Int {
var currentValue: Int = 0
queue.sync {
currentValue = self.value
}
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()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Basic number counter with possibility to increment counter and access current value.
Thread-safe for read and write operations.
### Response:
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer { lock.unlock() }
value += 1
}
func currentValue() -> Int {
lock.lock()
defer { lock.unlock() }
return value
}
}
```protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol{
private var value: Int
private let lock = NSLock()
required init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int = 0
lock.lock()
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()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int = 0
lock.lock()
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()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int
lock.lock()
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()
defer {
lock.unlock()
}
value += 1
}
func currentValue() -> Int {
var currentValue: Int
lock.lock()
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 let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```
This codetransformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```
This codetransformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private var value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
let newPipeline = Pipeline<U>(value: newValue)
newPipeline.transformations = transformations + [{ newValue in transform(newValue) as! T }]
return newPipeline
}
func execute() -> T {
var result = value
for transformation in transformations {
result = transformation(result)
}
return 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: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
let newValue = transform(value)
let newPipeline = Pipeline<U>(value: newValue)
newPipeline.transformations = transformations + [{ newValue in transform(newValue) as! T }]
return newPipeline
}
func execute() -> T {
var result = value
for transformation in transformations {
result = transformation(result)
}
return result
}
}
```
This solutionnewPipeline.transformations = transformations + [{ newValue in transform(newValue) as! T }] // cannot assign value of type '[(T) -> T]' to type '[(U) -> 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 let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```
This codetransformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```
This codetransformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result = value
for transform in transformations {
result = transform(result) as! T
}
return 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 {
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append(transform)
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result = value
for transform in transformations {
result = transform(result) as! T
}
return result
}
}
```
This codeprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```
This codetransformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as Any }
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result = value
for transformation in transformations {
result = transformation(result) as! T
}
return 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 {
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as Any }
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result = value
for transformation in transformations {
result = transformation(result) as! T
}
return result
}
}
```
This codeprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Functional pipeline builder class conforming to a protocol, allowing chaining transformations with type changes.
Ensure the final output is produced by sequentially applying transformations starting from an initial value.
### Response:
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
typealias Output = T
private let value: T
private var transformations: [(T) -> T] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as! U }
return Pipeline<U>(value: transform(value) as! U)
}
func execute() -> T {
return transformations.reduce(value) { $1($0) }
}
}
```
This codetransformations.append { transform($0) as! U } // cannot convert value of type 'U' to closure result type 'T'transformations.append { transform($0) as! U } // forced cast of 'U' to same type has no effectreturn Pipeline<U>(value: transform(value) as! U) // forced cast of 'U' to same type has no effectprotocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<T>: PipelineProtocol {
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as Any }
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result = value
for transform in transformations {
result = transform(result) as! T
}
return 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 {
private let value: T
private var transformations: [(T) -> Any] = []
required init(value: T) {
self.value = value
}
func pipe<U>(_ transform: @escaping (T) -> U) -> Pipeline<U> {
transformations.append { transform($0) as Any }
return Pipeline<U>(value: transform(value))
}
func execute() -> T {
var result = value
for transform in transformations {
result = transform(result) as! T
}
return result
}
}
```
This codeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
required init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(_value)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
required init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(_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 {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```
This codeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
var value: Value {
didSet {
notifyObservers()
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(value)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
var value: Value {
didSet {
notifyObservers()
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(value)
}
}
}
```
This codeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
required init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(_value)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
required init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(_value)
}
}
}
```
This codeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
required init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(_value)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
required init(value: Value) {
self._value = value
}
var value: Value {
get {
return _value
}
set {
_value = newValue
notifyObservers()
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(_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 {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```
This codeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
required init(value: Value) {
self._value = value
}
var value: Value {
get { return _value }
set {
_value = newValue
notifyObservers()
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(_value)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
private var observers: [UUID: (Value) -> Void] = [:]
private var _value: Value
required init(value: Value) {
self._value = value
}
var value: Value {
get { return _value }
set {
_value = newValue
notifyObservers()
}
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(_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 {
var value: Value {
didSet {
notifyObservers()
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
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 {
var value: Value {
didSet {
notifyObservers()
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for observer in observers.values {
observer(value)
}
}
}
```
This codeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
var value: Value {
didSet {
observers.forEach { $0.value(value) }
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
```
This codeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
var value: Value {
didSet {
notifyObservers()
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(value)
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
### Response:
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value>: ObservablePropertyProtocol {
var value: Value {
didSet {
notifyObservers()
}
}
private var observers: [UUID: (Value) -> Void] = [:]
required init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let id = UUID()
observers[id] = observer
return id
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
private func notifyObservers() {
for (_, observer) in observers {
observer(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>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue
if value < range.lowerBound {
value = range.lowerBound
} else if value > range.upperBound {
value = range.upperBound
}
}
var wrappedValue: Value {
get { value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue
if value < range.lowerBound {
value = range.lowerBound
} else if value > range.upperBound {
value = range.upperBound
}
}
var wrappedValue: Value {
get { value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
}
```
This Swprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue
if self.value < range.lowerBound {
self.value = range.lowerBound
} else if self.value > range.upperBound {
self.value = range.upperBound
}
}
var wrappedValue: Value {
get { value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue
if self.value < range.lowerBound {
self.value = range.lowerBound
} else if self.value > range.upperBound {
self.value = range.upperBound
}
}
var wrappedValue: Value {
get { value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
}
```
This codeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```
This Swprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```
This codeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue.clamped(to: range)
}
var wrappedValue: Value {
get { value }
set { value = newValue.clamped(to: range) }
}
}
extension Comparable {
func clamped(to range: ClosedRange<Self>) -> Self {
return min(max(self, range.lowerBound), range.upperBound)
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue.clamped(to: range)
}
var wrappedValue: Value {
get { value }
set { value = newValue.clamped(to: range) }
}
}
extension Comparable {
func clamped(to range: ClosedRange<Self>) -> Self {
return min(max(self, range.lowerBound), range.upperBound)
}
}
```
This codeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```
This codeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```
This codeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue
if self.value < range.lowerBound {
self.value = range.lowerBound
} else if self.value > range.upperBound {
self.value = range.upperBound
}
}
var wrappedValue: Value {
get { value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue
if self.value < range.lowerBound {
self.value = range.lowerBound
} else if self.value > range.upperBound {
self.value = range.upperBound
}
}
var wrappedValue: Value {
get { value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
}
```
This codeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.value = wrappedValue
self.range = range
}
var wrappedValue: Value {
get { value }
set { value = min(max(newValue, range.lowerBound), range.upperBound) }
}
}
```
This codeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue
if value < range.lowerBound {
value = range.lowerBound
} else if value > range.upperBound {
value = range.upperBound
}
}
var wrappedValue: Value {
get { value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
### Response:
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<Value: Comparable>: ClampedProtocol {
private var value: Value
private let range: ClosedRange<Value>
init(wrappedValue: Value, _ range: ClosedRange<Value>) {
self.range = range
self.value = wrappedValue
if value < range.lowerBound {
value = range.lowerBound
} else if value > range.upperBound {
value = range.upperBound
}
}
var wrappedValue: Value {
get { value }
set {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
}
```
This Swenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
This codeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
This codeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
This codeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
This codeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
This codeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
This codeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
This codeenum 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
}
}
```
This codeenum 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
}
}
```
This codeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
### Response:
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<Value>: LoggedProtocol {
private var value: Value
private let logger: (Event, Value) -> Void
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void) {
self.value = wrappedValue
self.logger = logger
}
var wrappedValue: Value {
get {
logger(.get, value)
return value
}
set {
logger(.set, newValue)
value = newValue
}
}
}
```
This codeprotocol 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 = String(searchText.dropLast())
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 = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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 searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
case .keyboardDeleteBackwards:
searchBarText.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
return nil
}
}### Instruction:
Write code in Swift programming language. Don't include usage examples or tests.
Weather application provider.
Handle user actions to fill search bar results and use WeatherProvider to check forecast.
### Response:
```swift
protocol WeatherProvider {
func forecast(for city: String) throws -> String
}
enum UserAction {
case keyboardCharacterSelect(Character)
case keyboardDeleteBackwards
case searchButtonPress
}
enum ApplicationFeedback: Equatable {
case success(city: String, forecast: String)
case failure(city: String)
}
protocol WeatherApplicationDependencies {
init(provider: WeatherProvider)
}
protocol WeatherApplicationInteractions {
func handle(action: UserAction) -> ApplicationFeedback?
}
typealias WeatherApplicationProtocol = WeatherApplicationDependencies & WeatherApplicationInteractions
class WeatherApplication: WeatherApplicationProtocol{
private let provider: WeatherProvider
private var searchBarText: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchBarText.append(character)
case .keyboardDeleteBackwards:
searchBarText.removeLast()
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchBarText)
return .success(city: searchBarText, forecast: forecast)
} catch {
return .failure(city: searchBarText)
}
}
return nil
}
}
```
This Swprotocol 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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
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: String = ""
required init(provider: WeatherProvider) {
self.provider = provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
searchText.append(character)
case .keyboardDeleteBackwards:
searchText = String(searchText.dropLast())
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: searchText)
return .success(city: searchText, forecast: forecast)
} catch {
return .failure(city: searchText)
}
}
return nil
}
}
```