Metadata
| Key | Value |
|---|---|
| engine | transformers |
| prompt | default |
| 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 {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
} catch let error {
throw ParsingError.internalError(error)
}
throw ParsingError.invalidInput
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
} catch let error {
throw ParsingError.internalError(error)
}
throw ParsingError.invalidInput
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
} catch let error {
throw ParsingError.internalError(error)
}
throw ParsingError.invalidInput
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
} catch let error {
throw ParsingError.internalError(error)
}
throw ParsingError.invalidInput
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
throw ParsingError.invalidInput
} catch {
throw ParsingError.internalError(error)
}
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
} catch let error {
throw ParsingError.internalError(error)
}
throw ParsingError.invalidInput
}user
Write code in Swift programming language. Don't include usage examples or tests.
JSON parser, returns custom error type in case of failures.
assistant
```swift
typealias JSON = [String: Any]
enum ParsingError: Error {
case invalidInput
case internalError(Error)
}
func parse(string: String) throws -> JSON {
do {
if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON {
return json
}
} catch let error {
throw ParsingError.internalError(error)
}
throw ParsingError.invalidInput
}
```if let json = try JSONSerialization.jsonObject(with: string, options: .mutableContainers) as? JSON { // no exact matches in call to class method 'jsonObject'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, attributes, children):
return "<\(name)\(attributes.map { " " + ""\($0.key)=\($0.value)" }.joined())>\(children.map { generate($0) }.joined())</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
return "<\(name)\(attributes.map { " " + ""\($0.key)=\($0.value)" }.joined())>\(children.map { generate($0) }.joined())</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id": "test"], [
HTMLNode.element("a", ["href": "swifteval"])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopereturn "<\(name)\(attributes.map { " " + ""\($0.key)=\($0.value)" }.joined())>\(children.map { generate($0) }.joined())</\(name)>" // unterminated string literalreturn "<\(name)\(attributes.map { " " + ""\($0.key)=\($0.value)" }.joined())>\(children.map { generate($0) }.joined())</\(name)>" // cannot find ')' to match opening '(' in string interpolationindirect 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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopelet attributeStrings = attributes.map { " \($0)=\"\($1)\"" } // cannot find 'attributes' in scopereturn "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>" // cannot find 'children' in scopeindirect 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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopelet attributeStrings = attributes.map { " \($0)=\"\($1)\"" } // cannot find 'attributes' in scopereturn "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>" // cannot find 'children' in scopeindirect 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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopelet attributeStrings = attributes.map { " \($0)=\"\($1)\"" } // cannot find 'attributes' in scopereturn "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>" // cannot find 'children' in scopeindirect 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, attributes, children):
var element = "<" + name
for (key, value) in attributes {
element += " \(key)=\"\(value)\""
}
element += ">"
for child in children {
element += generate(child)
}
element += "</\(name)>"
return element
}
}user
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>"
assistant
```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, attributes, children):
var element = "<" + name
for (key, value) in attributes {
element += " \(key)=\"\(value)\""
}
element += ">"
for child in children {
element += generate(child)
}
element += "</\(name)>"
return element
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopefor (key, value) in attributes { // cannot find 'attributes' in scopefor child in children { // cannot find 'children' in scopeindirect 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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopelet attributeStrings = attributes.map { " \($0)=\"\($1)\"" } // cannot find 'attributes' in scopereturn "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>" // cannot find 'children' in scopeindirect 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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopelet attributeStrings = attributes.map { " \($0)=\"\($1)\"" } // cannot find 'attributes' in scopereturn "<\(name)" + attributeStrings.joined() + ">" + children.map { generate($0) }.joined(separator: "") + "</\(name)>" // cannot find 'children' in scopeindirect 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, attributes, children):
let attributeString = attributes.map { " \($0)=\"\($1)\"" }.joined()
return "<\(name)\(attributeString)>\n" + children.map { generate($0) }.joined() + "</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
let attributeString = attributes.map { " \($0)=\"\($1)\"" }.joined()
return "<\(name)\(attributeString)>\n" + children.map { generate($0) }.joined() + "</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopelet attributeString = attributes.map { " \($0)=\"\($1)\"" }.joined() // cannot find 'attributes' in scopereturn "<\(name)\(attributeString)>\n" + children.map { generate($0) }.joined() + "</\(name)>" // cannot find 'children' in scopeindirect 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, attributes, children):
let attributeString = attributes.map { " \($0)=\"\($1)\"" }.joined()
return "<\(name)\(attributeString)>\n" + children.map { generate($0) }.joined() + "</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
let attributeString = attributes.map { " \($0)=\"\($1)\"" }.joined()
return "<\(name)\(attributeString)>\n" + children.map { generate($0) }.joined() + "</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopelet attributeString = attributes.map { " \($0)=\"\($1)\"" }.joined() // cannot find 'attributes' in scopereturn "<\(name)\(attributeString)>\n" + children.map { generate($0) }.joined() + "</\(name)>" // cannot find 'children' in scopeindirect 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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)\(attributeStrings.joined())>" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}user
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>"
assistant
```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, attributes, children):
let attributeStrings = attributes.map { " \($0)=\"\($1)\"" }
return "<\(name)\(attributeStrings.joined())>" + children.map { generate($0) }.joined(separator: "") + "</\(name)>"
}
}
let tree = HTMLNode.element("div", ["id" : "myDiv"], [
HTMLNode.element("a", ["href" : "swifteval"], [])
])
print(generate(tree))
```case .element(let name, attributes, children): // cannot find 'children' in scopecase .element(let name, attributes, children): // cannot find 'attributes' in scopelet attributeStrings = attributes.map { " \($0)=\"\($1)\"" } // cannot find 'attributes' in scopereturn "<\(name)\(attributeStrings.joined())>" + children.map { generate($0) }.joined(separator: "") + "</\(name)>" // cannot find 'children' in scopeenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
switch char {
case "0"..."9":
var number = ""
while let nextChar = string[string.index(string.startIndex, offsetBy: index)], let digit = nextChar as? Character(of: .decimalDigits) {
number.append(digit)
index += 1
}
stack.append(Double(number)!)
case "+", "-", "*", "/":
if lastOperator != "" {
throw CalculateError.invalidInput
}
lastOperator = String(char)
case "(":
if lastOperator != "" {
throw CalculateError.invalidInput
}
stack.append(0)
index += 1
case ")":
if lastOperator == "" {
throw CalculateError.invalidInput
}
var temp = 0.0
while stack.last != 0.0 {
let num = stack.removeLast()
switch lastOperator {
case "+":
temp += num
case "-":
temp -= num
case "*":
temp *= num
case "/":
if num == 0 {
throw CalculateError.invalidInput
}
temp /= num
default:
break
}
}
stack.removeLast()
lastOperator = ""
if temp != 0 {
stack.append(temp)
}
index += 1
default:
throw CalculateError.invalidInput
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack[0]
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
switch char {
case "0"..."9":
var number = ""
while let nextChar = string[string.index(string.startIndex, offsetBy: index)], let digit = nextChar as? Character(of: .decimalDigits) {
number.append(digit)
index += 1
}
stack.append(Double(number)!)
case "+", "-", "*", "/":
if lastOperator != "" {
throw CalculateError.invalidInput
}
lastOperator = String(char)
case "(":
if lastOperator != "" {
throw CalculateError.invalidInput
}
stack.append(0)
index += 1
case ")":
if lastOperator == "" {
throw CalculateError.invalidInput
}
var temp = 0.0
while stack.last != 0.0 {
let num = stack.removeLast()
switch lastOperator {
case "+":
temp += num
case "-":
temp -= num
case "*":
temp *= num
case "/":
if num == 0 {
throw CalculateError.invalidInput
}
temp /= num
default:
break
}
}
stack.removeLast()
lastOperator = ""
if temp != 0 {
stack.append(temp)
}
index += 1
default:
throw CalculateError.invalidInput
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack[0]
}
do {
let result = try calculate("2+2*2")
print(result)
} catch {
print(error)
}
```while let nextChar = string[string.index(string.startIndex, offsetBy: index)], let digit = nextChar as? Character(of: .decimalDigits) { // conditional cast from 'Character' to 'Character' always succeedswhile let nextChar = string[string.index(string.startIndex, offsetBy: index)], let digit = nextChar as? Character(of: .decimalDigits) { // expected '{' after 'while' conditionwhile let nextChar = string[string.index(string.startIndex, offsetBy: index)], let digit = nextChar as? Character(of: .decimalDigits) { // initializer for conditional binding must have Optional type, not 'Character'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(char)) {
stack.append(number)
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch char {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
throw CalculateError.invalidInput
}
lastOperator = String(char)
} else if char == "(" {
var substring = string.suffix(from: string.index(string.startIndex, offsetBy: index))
substring = substring.dropFirst()
do {
let result = try calculate(substring)
stack.append(result)
} catch {
throw CalculateError.invalidInput
}
index = string.index(string.startIndex, offsetBy: index + substring.count)
} else if char == ")" {
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
} else {
throw CalculateError.invalidInput
}
index += 1
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(char)) {
stack.append(number)
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch char {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
throw CalculateError.invalidInput
}
lastOperator = String(char)
} else if char == "(" {
var substring = string.suffix(from: string.index(string.startIndex, offsetBy: index))
substring = substring.dropFirst()
do {
let result = try calculate(substring)
stack.append(result)
} catch {
throw CalculateError.invalidInput
}
index = string.index(string.startIndex, offsetBy: index + substring.count)
} else if char == ")" {
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
} else {
throw CalculateError.invalidInput
}
index += 1
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
}
do {
let result = try calculate("2+2*2")
print(result)
} catch {
print(error)
}
```let result = try calculate(substring) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'index = string.index(string.startIndex, offsetBy: index + substring.count) // cannot assign value of type 'String.Index' to type 'Int'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
switch char {
case "+":
stack.append(0)
index += 1
case "-":
stack.append(-1)
index += 1
case "*":
let a = stack.removeLast()
stack.append(stack.removeLast() * a)
index += 1
case "/":
let a = stack.removeLast()
stack.append(stack.removeLast() / a)
index += 1
case "(":
var substring = string[string.index(string.startIndex, offsetBy: index)...]
substring = substring.dropFirst()
let subResult = calculate(substring)
stack.append(subResult)
index += substring.count
case ")":
index += 1
return stack.reduce(0, +)
default:
if let num = Double(String(char)) {
stack.append(num)
index += 1
} else {
throw CalculateError.invalidInput
}
}
}
return stack.reduce(0, +)
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
switch char {
case "+":
stack.append(0)
index += 1
case "-":
stack.append(-1)
index += 1
case "*":
let a = stack.removeLast()
stack.append(stack.removeLast() * a)
index += 1
case "/":
let a = stack.removeLast()
stack.append(stack.removeLast() / a)
index += 1
case "(":
var substring = string[string.index(string.startIndex, offsetBy: index)...]
substring = substring.dropFirst()
let subResult = calculate(substring)
stack.append(subResult)
index += substring.count
case ")":
index += 1
return stack.reduce(0, +)
default:
if let num = Double(String(char)) {
stack.append(num)
index += 1
} else {
throw CalculateError.invalidInput
}
}
}
return stack.reduce(0, +)
}
do {
let result = try calculate("2+(2*2)")
print(result)
} catch {
print(error)
}
```let subResult = calculate(substring) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
while index < string.count {
let character = string[string.index(string.startIndex, offsetBy: index)]
switch character {
case "+":
stack.append(0)
index += 1
case "-":
stack.append(0)
index += 1
case "*":
let a = stack.removeLast()
stack.append(0)
index += 1
case "/":
let a = stack.removeLast()
stack.append(0)
index += 1
case "(":
let start = index
index += 1
while string[string.index(string.startIndex, offsetBy: index)] != ")" {
index += 1
}
let b = calculate(String(string[string.index(string.startIndex, offsetBy: start)..<string.index(string.startIndex, offsetBy: index)]))
let c = stack.removeLast()
switch c {
case 0:
stack.append(b)
case let d when d != 0:
stack.append(d + b)
default:
throw CalculateError.invalidInput
}
default:
var num = ""
while index < string.count && CharacterSet.decimalDigits.contains(string[string.index(string.startIndex, offsetBy: index)]) {
num += String(string[string.index(string.startIndex, offsetBy: index)])
index += 1
}
stack.append(Double(num)!)
}
}
return stack.reduce(0, +)
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
while index < string.count {
let character = string[string.index(string.startIndex, offsetBy: index)]
switch character {
case "+":
stack.append(0)
index += 1
case "-":
stack.append(0)
index += 1
case "*":
let a = stack.removeLast()
stack.append(0)
index += 1
case "/":
let a = stack.removeLast()
stack.append(0)
index += 1
case "(":
let start = index
index += 1
while string[string.index(string.startIndex, offsetBy: index)] != ")" {
index += 1
}
let b = calculate(String(string[string.index(string.startIndex, offsetBy: start)..<string.index(string.startIndex, offsetBy: index)]))
let c = stack.removeLast()
switch c {
case 0:
stack.append(b)
case let d when d != 0:
stack.append(d + b)
default:
throw CalculateError.invalidInput
}
default:
var num = ""
while index < string.count && CharacterSet.decimalDigits.contains(string[string.index(string.startIndex, offsetBy: index)]) {
num += String(string[string.index(string.startIndex, offsetBy: index)])
index += 1
}
stack.append(Double(num)!)
}
}
return stack.reduce(0, +)
}
do {
print(try calculate("2+2*2"))
} catch CalculateError.invalidInput {
print("Invalid input")
} catch {
print("Unknown error")
}
```let b = calculate(String(string[string.index(string.startIndex, offsetBy: start)..<string.index(string.startIndex, offsetBy: index)])) // call can throw but is not marked with 'try'case let d when d != 0: // consecutive statements on a line must be separated by ';'case let d when d != 0: // expected expressioncase let d when d != 0: // cannot find 'when' in scopecase let d when d != 0: // expected ':' after 'case'case let d when d != 0: // result of operator '!=' is unusedcase let d when d != 0: // consecutive statements on a line must be separated by ';'while index < string.count && CharacterSet.decimalDigits.contains(string[string.index(string.startIndex, offsetBy: index)]) { // cannot convert value of type 'Character' to expected argument type 'Unicode.Scalar'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(char)) {
stack.append(number)
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch char {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
throw CalculateError.invalidInput
}
lastOperator = String(char)
} else if char == "(" {
var substring = string.suffix(from: string.index(string.startIndex, offsetBy: index))
substring = substring.dropFirst()
do {
let result = try calculate(substring)
stack.append(result)
} catch {
throw CalculateError.invalidInput
}
} else if char == ")" {
if stack.count < 1 {
throw CalculateError.invalidInput
}
return stack[0]
} else {
throw CalculateError.invalidInput
}
index += 1
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack[0]
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(char)) {
stack.append(number)
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch char {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
throw CalculateError.invalidInput
}
lastOperator = String(char)
} else if char == "(" {
var substring = string.suffix(from: string.index(string.startIndex, offsetBy: index))
substring = substring.dropFirst()
do {
let result = try calculate(substring)
stack.append(result)
} catch {
throw CalculateError.invalidInput
}
} else if char == ")" {
if stack.count < 1 {
throw CalculateError.invalidInput
}
return stack[0]
} else {
throw CalculateError.invalidInput
}
index += 1
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack[0]
}
do {
let result = try calculate("2+2*2")
print(result)
} catch {
print(error)
}
```let result = try calculate(substring) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(char)) {
stack.append(number)
index += 1
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch char {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
throw CalculateError.invalidInput
}
lastOperator = String(char)
index += 1
} else if char == "(" {
var substring = String(string[string.index(string.startIndex, offsetBy: index)..<string.endIndex])
var subIndex = 0
while true {
let subChar = substring[substring.index(substring.startIndex, offsetBy: subIndex)]
if subChar == ")" {
break
} else if subChar == "(" {
subIndex += 1
} else if let number = Double(String(subChar)) {
stack.append(number)
subIndex += 1
} else if subChar == "+" || subChar == "-" || subChar == "*" || subChar == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch subChar {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
throw CalculateError.invalidInput
}
lastOperator = String(subChar)
subIndex += 1
}
}
index += substring.count
} else {
throw CalculateError.invalidInput
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(char)) {
stack.append(number)
index += 1
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch char {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
throw CalculateError.invalidInput
}
lastOperator = String(char)
index += 1
} else if char == "(" {
var substring = String(string[string.index(string.startIndex, offsetBy: index)..<string.endIndex])
var subIndex = 0
while true {
let subChar = substring[substring.index(substring.startIndex, offsetBy: subIndex)]
if subChar == ")" {
break
} else if subChar == "(" {
subIndex += 1
} else if let number = Double(String(subChar)) {
stack.append(number)
subIndex += 1
} else if subChar == "+" || subChar == "-" || subChar == "*" || subChar == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch subChar {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
throw CalculateError.invalidInput
}
lastOperator = String(subChar)
subIndex += 1
}
}
index += substring.count
} else {
throw CalculateError.invalidInput
}
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
}
do {
print(try calculate("2+2*2"))
} catch let error {
print(error.localizedDescription)
}
```var lastOperator = "" // variable 'lastOperator' was written to, but never readvar substring = String(string[string.index(string.startIndex, offsetBy: index)..<string.endIndex]) // variable 'substring' was never mutated; consider changing to 'let' constant // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
var lastNumber = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(char)) {
stack.append(number)
lastNumber = String(char)
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if lastNumber.isEmpty {
throw CalculateError.invalidInput
}
if lastOperator == "*" || lastOperator == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch lastOperator {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
break
}
} else {
lastOperator = String(char)
}
} else if char == "(" {
stack.append(Double(lastNumber)!)
lastNumber = ""
lastOperator = ""
} else if char == ")" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
if lastNumber.isEmpty {
throw CalculateError.invalidInput
}
let result = Double(lastNumber)!
stack.append(result)
lastNumber = ""
lastOperator = ""
} else {
throw CalculateError.invalidInput
}
index += 1
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
var lastNumber = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(char)) {
stack.append(number)
lastNumber = String(char)
} else if char == "+" || char == "-" || char == "*" || char == "/" {
if lastNumber.isEmpty {
throw CalculateError.invalidInput
}
if lastOperator == "*" || lastOperator == "/" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
switch lastOperator {
case "+":
stack.append(firstOperand + secondOperand)
case "-":
stack.append(firstOperand - secondOperand)
case "*":
stack.append(firstOperand * secondOperand)
case "/":
if secondOperand == 0 {
throw CalculateError.invalidInput
}
stack.append(firstOperand / secondOperand)
default:
break
}
} else {
lastOperator = String(char)
}
} else if char == "(" {
stack.append(Double(lastNumber)!)
lastNumber = ""
lastOperator = ""
} else if char == ")" {
if stack.count < 2 {
throw CalculateError.invalidInput
}
let secondOperand = stack.removeLast()
let firstOperand = stack.removeLast()
if lastNumber.isEmpty {
throw CalculateError.invalidInput
}
let result = Double(lastNumber)!
stack.append(result)
lastNumber = ""
lastOperator = ""
} else {
throw CalculateError.invalidInput
}
index += 1
}
if stack.count != 1 {
throw CalculateError.invalidInput
}
return stack.removeLast()
}
do {
let result = try calculate("2+2*2")
print(result)
} catch {
print(error)
}
```let secondOperand = stack.removeLast() // initialization of immutable value 'secondOperand' was never used; consider replacing with assignment to '_' or removing itlet firstOperand = stack.removeLast() // initialization of immutable value 'firstOperand' was never used; consider replacing with assignment to '_' or removing it // Fatal error: Error raised at top level: Solution.CalculateError.invalidInputenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var currentNumber = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
switch char {
case "0"..."9":
currentNumber += String(char)
case "+", "-", "*", "/":
if !currentNumber.isEmpty {
stack.append(Double(currentNumber)!)
currentNumber = ""
}
stack.append(Double(String(char)))
case "(":
stack.append(0)
index += 1
case ")":
if !currentNumber.isEmpty {
stack.append(Double(currentNumber)!)
currentNumber = ""
}
var sum = 0.0
while stack.last != 0 {
let num = stack.removeLast()
if let num = num as? Double {
sum += num
}
}
stack.removeLast()
stack.append(sum)
index += 1
default:
throw CalculateError.invalidInput
}
}
if !currentNumber.isEmpty {
throw CalculateError.invalidInput
}
var result = 0.0
while !stack.isEmpty {
let num = stack.removeLast()
if let num = num as? Double {
result += num
}
}
return result
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var currentNumber = ""
while index < string.count {
let char = string[string.index(string.startIndex, offsetBy: index)]
switch char {
case "0"..."9":
currentNumber += String(char)
case "+", "-", "*", "/":
if !currentNumber.isEmpty {
stack.append(Double(currentNumber)!)
currentNumber = ""
}
stack.append(Double(String(char)))
case "(":
stack.append(0)
index += 1
case ")":
if !currentNumber.isEmpty {
stack.append(Double(currentNumber)!)
currentNumber = ""
}
var sum = 0.0
while stack.last != 0 {
let num = stack.removeLast()
if let num = num as? Double {
sum += num
}
}
stack.removeLast()
stack.append(sum)
index += 1
default:
throw CalculateError.invalidInput
}
}
if !currentNumber.isEmpty {
throw CalculateError.invalidInput
}
var result = 0.0
while !stack.isEmpty {
let num = stack.removeLast()
if let num = num as? Double {
result += num
}
}
return result
}
do {
let result = try calculate("2+2*2")
print(result)
} catch {
print(error)
}
```stack.append(Double(String(char))) // value of optional type 'Double?' must be unwrapped to a value of type 'Double'if let num = num as? Double { // conditional cast from 'Double' to 'Double' always succeedsif let num = num as? Double { // conditional cast from 'Double' to 'Double' always succeedsenum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let character = String(string[string.index(string.startIndex, offsetBy: index)])
if let number = Double(character) {
stack.append(number)
index += 1
} else if character == "(" {
stack.append(Double(character.description))
index += 1
} else if character == ")" {
let result = stack.removeLast()
while let top = stack.last, top != "(" {
stack.removeLast()
if let number = Double(top.description) {
result += number
}
}
stack.removeLast()
index += 1
} else if ["+", "-", "*", "/"].contains(character) {
if let number = stack.removeLast() {
stack.append(Double(lastOperator))
lastOperator = character
} else {
throw CalculateError.invalidInput
}
index += 1
} else {
throw CalculateError.invalidInput
}
}
if let number = stack.removeLast(), let last = stack.removeLast() {
switch lastOperator {
case "+":
return number + last
case "-":
return number - last
case "*":
return number * last
case "/":
if last != 0 {
return number / last
} else {
throw CalculateError.invalidInput
}
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var lastOperator = ""
while index < string.count {
let character = String(string[string.index(string.startIndex, offsetBy: index)])
if let number = Double(character) {
stack.append(number)
index += 1
} else if character == "(" {
stack.append(Double(character.description))
index += 1
} else if character == ")" {
let result = stack.removeLast()
while let top = stack.last, top != "(" {
stack.removeLast()
if let number = Double(top.description) {
result += number
}
}
stack.removeLast()
index += 1
} else if ["+", "-", "*", "/"].contains(character) {
if let number = stack.removeLast() {
stack.append(Double(lastOperator))
lastOperator = character
} else {
throw CalculateError.invalidInput
}
index += 1
} else {
throw CalculateError.invalidInput
}
}
if let number = stack.removeLast(), let last = stack.removeLast() {
switch lastOperator {
case "+":
return number + last
case "-":
return number - last
case "*":
return number * last
case "/":
if last != 0 {
return number / last
} else {
throw CalculateError.invalidInput
}
default:
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
do {
print(try calculate("2+2*2"))
print(try calculate("2-2*2"))
print(try calculate("2*2*2"))
print(try calculate("2/2/2"))
} catch CalculateError.invalidInput {
print("Invalid input")
} catch {
print("Error")
}
```stack.append(Double(character.description)) // value of optional type 'Double?' must be unwrapped to a value of type 'Double'while let top = stack.last, top != "(" { // cannot convert value of type 'String' to expected argument type 'Double'result += number // left side of mutating operator isn't mutable: 'result' is a 'let' constantif let number = stack.removeLast() { // initializer for conditional binding must have Optional type, not 'Double'stack.append(Double(lastOperator)) // value of optional type 'Double?' must be unwrapped to a value of type 'Double'if let number = stack.removeLast(), let last = stack.removeLast() { // initializer for conditional binding must have Optional type, not 'Double'if let number = stack.removeLast(), let last = stack.removeLast() { // initializer for conditional binding must have Optional type, not 'Double'enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var currentNumber = ""
while index < string.count {
let character = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(character)) {
currentNumber.append(String(character))
index += 1
} else if character == "(" {
stack.append(0)
index += 1
} else if character == ")" {
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
stack.append(result)
currentNumber = ""
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
index += 1
} else {
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
stack.append(result)
currentNumber = ""
} else {
throw CalculateError.invalidInput
}
} else {
currentNumber = ""
}
switch character {
case "+":
index += 1
case "-":
stack.append(-1)
index += 1
case "*":
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
stack.append(top * result)
currentNumber = ""
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
index += 1
case "/":
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
stack.append(top / result)
currentNumber = ""
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
index += 1
default:
throw CalculateError.invalidInput
}
}
}
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
return top + result
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}user
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".
assistant
```swift
enum CalculateError: Error {
case invalidInput
}
func calculate(_ string: String) throws -> Double {
var stack = [Double]()
var index = 0
var currentNumber = ""
while index < string.count {
let character = string[string.index(string.startIndex, offsetBy: index)]
if let number = Double(String(character)) {
currentNumber.append(String(character))
index += 1
} else if character == "(" {
stack.append(0)
index += 1
} else if character == ")" {
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
stack.append(result)
currentNumber = ""
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
index += 1
} else {
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
stack.append(result)
currentNumber = ""
} else {
throw CalculateError.invalidInput
}
} else {
currentNumber = ""
}
switch character {
case "+":
index += 1
case "-":
stack.append(-1)
index += 1
case "*":
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
stack.append(top * result)
currentNumber = ""
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
index += 1
case "/":
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
stack.append(top / result)
currentNumber = ""
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
index += 1
default:
throw CalculateError.invalidInput
}
}
}
if let top = stack.last, top != 0 {
stack.removeLast()
if let result = calculate(String(currentNumber)) {
return top + result
} else {
throw CalculateError.invalidInput
}
} else {
throw CalculateError.invalidInput
}
}
do {
let result = try calculate("2+2*2")
print(result)
} catch {
print(error)
}
```if let number = Double(String(character)) { // value 'number' was defined but never used; consider replacing with boolean testif let result = calculate(String(currentNumber)) { // call can throw but is not marked with 'try'if let result = calculate(String(currentNumber)) { // initializer for conditional binding must have Optional type, not 'Double'if let result = calculate(String(currentNumber)) { // initializer for conditional binding must have Optional type, not 'Double'if let result = calculate(String(currentNumber)) { // call can throw but is not marked with 'try'if let result = calculate(String(currentNumber)) { // call can throw but is not marked with 'try'if let result = calculate(String(currentNumber)) { // initializer for conditional binding must have Optional type, not 'Double'if let result = calculate(String(currentNumber)) { // initializer for conditional binding must have Optional type, not 'Double'if let result = calculate(String(currentNumber)) { // call can throw but is not marked with 'try'if let result = calculate(String(currentNumber)) { // initializer for conditional binding must have Optional type, not 'Double'if let result = calculate(String(currentNumber)) { // call can throw but is not marked with 'try'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
do {
try task.run()
if let output = task.stdout?.utf8.readAll() {
stdout = String(output)
}
if let error = task.stderr?.utf8.readAll() {
stderr = String(error)
}
} catch {
print("Error: \(error)")
}
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
do {
try task.run()
if let output = task.stdout?.utf8.readAll() {
stdout = String(output)
}
if let error = task.stderr?.utf8.readAll() {
stderr = String(error)
}
} catch {
print("Error: \(error)")
}
return (stdout, stderr)
}
```if let output = task.stdout?.utf8.readAll() { // value of type 'Process' has no member 'stdout'if let error = task.stderr?.utf8.readAll() { // value of type 'Process' has no member 'stderr'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}
```task.standardOutput?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardOutput?.delegate = task { data in // cannot call value of non-function type 'Process'task.standardError?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardError?.delegate = task { data in // cannot call value of non-function type 'Process'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
do {
try task.run()
if let output = task.stdout?.utf8.readAll() {
stdout = String(output)
}
if let error = task.stderr?.utf8.readAll() {
stderr = String(error)
}
} catch {
print("Error: \(error)")
}
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
do {
try task.run()
if let output = task.stdout?.utf8.readAll() {
stdout = String(output)
}
if let error = task.stderr?.utf8.readAll() {
stderr = String(error)
}
} catch {
print("Error: \(error)")
}
return (stdout, stderr)
}
```if let output = task.stdout?.utf8.readAll() { // value of type 'Process' has no member 'stdout'if let error = task.stderr?.utf8.readAll() { // value of type 'Process' has no member 'stderr'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}
```task.standardOutput?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardOutput?.delegate = task { data in // cannot call value of non-function type 'Process'task.standardError?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardError?.delegate = task { data in // cannot call value of non-function type 'Process'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}
```task.standardOutput?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardOutput?.delegate = task { data in // cannot call value of non-function type 'Process'task.standardError?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardError?.delegate = task { data in // cannot call value of non-function type 'Process'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
do {
try task.run()
while(true) {
if let data = task.standardOutput?.readData(ofLength: 1) {
let char = String(data)
if let str = String(char) {
stdout.append(str)
}
}
if let data = task.standardError?.readData(ofLength: 1) {
let char = String(data)
if let str = String(char) {
stderr.append(str)
}
}
if task.isRunning {
Thread.sleepForTimeInterval(1.0)
} else {
break
}
}
} catch {
print("Error: \(error)")
}
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
do {
try task.run()
while(true) {
if let data = task.standardOutput?.readData(ofLength: 1) {
let char = String(data)
if let str = String(char) {
stdout.append(str)
}
}
if let data = task.standardError?.readData(ofLength: 1) {
let char = String(data)
if let str = String(char) {
stderr.append(str)
}
}
if task.isRunning {
Thread.sleepForTimeInterval(1.0)
} else {
break
}
}
} catch {
print("Error: \(error)")
}
return (stdout, stderr)
}
```if let data = task.standardOutput?.readData(ofLength: 1) { // value of type 'Any' has no member 'readData'if let data = task.standardError?.readData(ofLength: 1) { // value of type 'Any' has no member 'readData'Thread.sleepForTimeInterval(1.0) // 'sleepForTimeInterval' has been renamed to 'sleep(forTimeInterval:)'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}
```task.standardOutput?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardOutput?.delegate = task { data in // cannot call value of non-function type 'Process'task.standardError?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardError?.delegate = task { data in // cannot call value of non-function type 'Process'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
while !task.isRunning {
// Wait for the process to finish
}
task.waitUntilExit()
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
while !task.isRunning {
// Wait for the process to finish
}
task.waitUntilExit()
return (stdout, stderr)
}
```task.standardOutput?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardOutput?.delegate = task { data in // cannot call value of non-function type 'Process'task.standardError?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardError?.delegate = task { data in // cannot call value of non-function type 'Process'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
task.standardOutput?.delegate = task { data in
let stringData = String(data)
stdout.append(stringData)
}
task.standardError?.delegate = task { data in
let stringData = String(data)
stderr.append(stringData)
}
task.launch()
task.waitUntilExit()
return (stdout, stderr)
}
```task.standardOutput?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardOutput?.delegate = task { data in // cannot call value of non-function type 'Process'task.standardError?.delegate = task { data in // value of type 'Any' has no member 'delegate'task.standardError?.delegate = task { data in // cannot call value of non-function type 'Process'func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
do {
try task.run()
while(true) {
if let data = task.standardOutput?.readData(ofLength: 1024) {
let string = String(data)
if !string.isEmpty {
stdout.append(string)
}
}
if let data = task.standardError?.readData(ofLength: 1024) {
let string = String(data)
if !string.isEmpty {
stderr.append(string)
}
}
if task.terminationStatus != 0 {
break
}
Thread.sleepForTimeInterval(1.0)
}
} catch {
print("Error: \(error)")
}
return (stdout, stderr)
}user
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.
assistant
```swift
func execute(binary: String, arguments: [String]) -> (String, String) {
let task = Process()
task.launchPath = binary
task.arguments = arguments
var stdout = ""
var stderr = ""
do {
try task.run()
while(true) {
if let data = task.standardOutput?.readData(ofLength: 1024) {
let string = String(data)
if !string.isEmpty {
stdout.append(string)
}
}
if let data = task.standardError?.readData(ofLength: 1024) {
let string = String(data)
if !string.isEmpty {
stderr.append(string)
}
}
if task.terminationStatus != 0 {
break
}
Thread.sleepForTimeInterval(1.0)
}
} catch {
print("Error: \(error)")
}
return (stdout, stderr)
}
```if let data = task.standardOutput?.readData(ofLength: 1024) { // value of type 'Any' has no member 'readData'if let data = task.standardError?.readData(ofLength: 1024) { // value of type 'Any' has no member 'readData'Thread.sleepForTimeInterval(1.0) // 'sleepForTimeInterval' has been renamed to 'sleep(forTimeInterval:)'func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}
// Example usage:
let fibonacci = memoize { (n: Int) -> Int {
if n < 2 { return n }
return fibonacci(n: n - 1) + fibonacci(n: n - 2)
} }
print(fibonacci(n: 10)) // Outputs: 55
print(fibonacci(n: 10)) // Outputs: 55 (since the function should now return the cached result)
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
}
let result = function(key)
cache[key] = result
return result
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
}
let result = function(key)
cache[key] = result
return result
}
}
// Example usage:
let fibonacci = memoize { (n: Int) -> Int {
if n <= 1 {
return n
}
return fibonacci(n: n - 1) + fibonacci(n: n - 2)
} }
print(fibonacci(n: 10)) // Output: 55
print(fibonacci(n: 10)) // Output: 55 (Cached result)
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}
// Example usage:
let fibonacci = memoize { (n: Int) -> Int in
if n < 2 { return n }
return fibonacci(n: n - 1) + fibonacci(n: n - 2)
}
print(fibonacci(n: 10)) // Output: 55
print(fibonacci(n: 10)) // Output: 55 (Cached result)
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}
// Example usage:
let fibonacci = memoize { n in
if n < 2 {
return n
} else {
return fibonacci(n - 1) + fibonacci(n - 2)
}
}
print(fibonacci(10)) // Output: 55
print(fibonacci(10)) // Output: 55 (Cached result)
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
}
let result = function(key)
cache[key] = result
return result
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
}
let result = function(key)
cache[key] = result
return result
}
}
// Usage
let fibonacci = memoize { (n: Int) -> Int {
if n < 2 { return n }
return fibonacci(n: n - 1) + fibonacci(n: n - 2)
} }
print(fibonacci(n: 10)) // Output: 55
print(fibonacci(n: 10)) // Output: 55 (Cached result)
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}
// Usage
let fibonacci = memoize { (n: Int) -> Int {
if n <= 1 {
return n
} else {
return fibonacci(n: n - 1) + fibonacci(n: n - 2)
}
} }
print(fibonacci(n: 10)) // Output: 55
print(fibonacci(n: 10)) // Output: 55 (Cached result)
```func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Memoization function that caches the results of expensive computations.
assistant
```swift
func memoize<T: Hashable, U>(_ function: @escaping (T) -> U) -> (T) -> U {
var cache = [T: U]()
return { key in
if let result = cache[key] {
return result
} else {
let result = function(key)
cache[key] = result
return result
}
}
}
// Example usage:
let fibonacci = memoize { (n: Int) -> Int {
if n < 2 { return n }
return fibonacci(n: n - 1) + fibonacci(n: n - 2)
} }
// Usage:
print(fibonacci(n: 10)) // Output: 55
print(fibonacci(n: 10)) // Output: 55 (cached result)
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// If the task fails, continue to the next attempt.
}
}
// If the task fails after all attempts, throw the error.
throw error
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// If the task fails, continue to the next attempt.
}
}
// If the task fails after all attempts, throw the error.
throw error
}
// Example usage:
do {
let result = try retry(attempts: 5, task: {
// This task will be retried 5 times.
sleep(1) // Simulate a task that takes some time.
return 42
})
print(result)
} catch {
print("Error: \(error)")
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
repeat {
do {
return try task()
} catch {
if attempts == 0 {
throw error
}
attempts -= 1
}
} while(true)
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
repeat {
do {
return try task()
} catch {
if attempts == 0 {
throw error
}
attempts -= 1
}
} while(true)
}
// Example usage:
do {
let result = try retry(attempts: 3, task: {
// Your task goes here
return 42
})
print(result)
} catch {
print("Error: \(error)")
}
```attempts -= 1 // left side of mutating operator isn't mutable: 'attempts' is a 'let' constantfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
repeat {
do {
return try task()
} catch {
if attempts == 0 {
throw error
}
attempts -= 1
}
} while (true)
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
repeat {
do {
return try task()
} catch {
if attempts == 0 {
throw error
}
attempts -= 1
}
} while (true)
}
// Example usage:
do {
let result = try retry(attempts: 3, task: {
// This task could throw an error, so we need to use try!
let value = try Int.random(in: 0...100)
return value
})
print("Result: \(result)")
} catch {
print("Error: \(error)")
}
```attempts -= 1 // left side of mutating operator isn't mutable: 'attempts' is a 'let' constantfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
repeat {
do {
return try task()
} catch {
if attempts == 0 {
throw error
}
attempts -= 1
print("Retry failed, retrying...")
}
} while (true)
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
repeat {
do {
return try task()
} catch {
if attempts == 0 {
throw error
}
attempts -= 1
print("Retry failed, retrying...")
}
} while (true)
}
// Example usage:
do {
let result = try retry(attempts: 5, task: {
// This task can throw an error
let value = 10 / 0
return value
})
print(result)
} catch {
print("Error: \(error)")
}
```attempts -= 1 // left side of mutating operator isn't mutable: 'attempts' is a 'let' constantfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
print("Attempt failed: \(error)")
}
}
throw NSError(domain: NSCocoaErrorDomain, code: NSFileNoSuchFileError, userInfo: [NSLocalizedDescriptionKey : "Failed after maximum retries"])
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
print("Attempt failed: \(error)")
}
}
throw NSError(domain: NSCocoaErrorDomain, code: NSFileNoSuchFileError, userInfo: [NSLocalizedDescriptionKey : "Failed after maximum retries"])
}
// Example usage:
do {
let result = try retry(attempts: 5, task: {
// Replace with your task
return 42
})
print(result)
} catch {
print(error)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// If the task fails, continue to the next attempt.
}
}
// If we've tried the maximum number of times and still fail, throw an error.
throw NSError(domain: "", code: 0, userInfo: nil)
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// If the task fails, continue to the next attempt.
}
}
// If we've tried the maximum number of times and still fail, throw an error.
throw NSError(domain: "", code: 0, userInfo: nil)
}
// Example usage:
do {
let result = try retry(attempts: 5, task: {
// This task could fail for a variety of reasons, such as network errors,
// disk full errors, etc.
let task = URLSession.shared.dataTask(with: URL(string: "http://example.com")!) { (data, response, error) in
if let error = error {
throw error
}
}
task.resume()
return data!
})
print(result)
} catch {
print("Failed to download data: \(error)")
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// If the task fails, continue to the next attempt.
}
}
// If we've tried the maximum number of times and still fail, throw the original error.
throw error
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
// If the task fails, continue to the next attempt.
}
}
// If we've tried the maximum number of times and still fail, throw the original error.
throw error
}
// Example usage:
do {
let result = try retry(attempts: 5, task: {
// This task could potentially fail for various reasons.
// For example, it could take a long time to run, or it could fail due to network issues.
sleep(1) // Simulate a task that takes a long time to complete.
return 42
})
print("Result: \(result)")
} catch {
print("Error: \(error)")
}
```throw error // thrown expression type '(String) -> ()' does not conform to 'Error'throw error // expansion of macro 'error' requires leading '#'func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
repeat {
do {
return try task()
} catch let error {
if attempts == 0 {
throw error
}
attempts -= 1
print("Retry failed with error: \(error.localizedDescription), retrying \(attempts) more times")
}
} while (attempts > 0)
throw NSError(domain: NSCocoaErrorDomain, code: NSFileNoSuchFileError, userInfo: [NSLocalizedDescriptionKey : "Max retry attempts reached"])
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
repeat {
do {
return try task()
} catch let error {
if attempts == 0 {
throw error
}
attempts -= 1
print("Retry failed with error: \(error.localizedDescription), retrying \(attempts) more times")
}
} while (attempts > 0)
throw NSError(domain: NSCocoaErrorDomain, code: NSFileNoSuchFileError, userInfo: [NSLocalizedDescriptionKey : "Max retry attempts reached"])
}
```attempts -= 1 // left side of mutating operator isn't mutable: 'attempts' is a 'let' constantfunc retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
print("Attempt failed: \(error)")
}
}
throw NSError(domain: "", code: 0, userInfo: [NSLocalizedDescriptionKey : "Max attempts reached"])
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
print("Attempt failed: \(error)")
}
}
throw NSError(domain: "", code: 0, userInfo: [NSLocalizedDescriptionKey : "Max attempts reached"])
}
// Example usage
do {
let result = try retry(attempts: 3, task: {
// Some task here
return 42
})
print(result)
} catch {
print(error)
}
```func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
print("Attempt failed: \(error)")
}
}
throw NSError(domain: "", code: 0, userInfo: [NSLocalizedDescriptionKey : "Retry limit exceeded"])
}user
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.
assistant
```swift
func retry<T>(attempts: Int, task: @escaping () throws -> T) throws -> T {
for _ in 0..<attempts {
do {
return try task()
} catch {
print("Attempt failed: \(error)")
}
}
throw NSError(domain: "", code: 0, userInfo: [NSLocalizedDescriptionKey : "Retry limit exceeded"])
}
// Example usage:
do {
let result = try retry(attempts: 5, task: {
// Replace with your task
return 42
})
print(result)
} catch {
print(error)
}
```protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}
class Logger: Any {
func log(message: String) {
print("Logged: \(message)")
}
}
class Service: Any {
var logger: Logger
init(logger: Logger) {
self.logger = logger
}
func doSomething() {
self.logger.log(message: "Hello, world!")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}
// Usage
let container = DIContainer()
class Logger: Any {
func log(message: String) {
print("Logged: \(message)")
}
}
class Service: Any {
var logger: Logger
init(logger: Logger) {
self.logger = logger
}
func doSomething() {
self.logger.log(message: "Hello, world!")
}
}
container.register(Logger.self, factory: { () -> Logger in
return Logger()
})
let service = container.resolve(Service.self)
service?.doSomething()
```private var registrations: [Type: (() -> Any)] = [:] // cannot find type 'Type' in scopeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in registrations {
if registration.type == type {
return registration.factory()
}
}
return nil
}
}
class MyService {
init() {
// Dependency on another service
_ = container.resolve(MyOtherService.self)
}
}
class MyOtherService {
// No dependencies
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in registrations {
if registration.type == type {
return registration.factory()
}
}
return nil
}
}
// Usage
let container = DIContainer()
class MyService {
init() {
// Dependency on another service
_ = container.resolve(MyOtherService.self)
}
}
class MyOtherService {
// No dependencies
}
container.register(MyService.self, factory: { MyService() })
let myService = container.resolve(MyService.self)
assert(myService != nil)
```if registration.type == type { // value of type 'Any' has no member 'type'return registration.factory() // value of type 'Any' has no member 'factory'_ = container.resolve(MyOtherService.self) // cannot find 'container' in scopeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in registrations {
if let type = registration.first as? T.Type {
if type == type {
return (registration.value as! T)
}
}
}
return nil
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in registrations {
if let type = registration.first as? T.Type {
if type == type {
return (registration.value as! T)
}
}
}
return nil
}
}
```if let type = registration.first as? T.Type { // value of type 'Any' has no member 'first'return (registration.value as! T) // value of type 'Any' has no member 'value'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in self.registrations {
if registration.type == type {
return registration.factory()
}
}
return nil
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in self.registrations {
if registration.type == type {
return registration.factory()
}
}
return nil
}
}
```if registration.type == type { // value of type 'Any' has no member 'type'return registration.factory() // value of type 'Any' has no member 'factory'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}
```private var registrations: [Type: (() -> Any)] = [:] // cannot find type 'Type' in scopeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}
```private var registrations: [Type: (() -> Any)] = [:] // cannot find type 'Type' in scopeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in self.registrations {
if let type = registration.first as? T.Type, type == type {
return registration.1()
}
}
return nil
}
}
class MyService {
init() {
print("MyService initialized")
}
}
class MyOtherService {
init(myService: MyService) {
print("MyOtherService initialized with MyService")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in self.registrations {
if let type = registration.first as? T.Type, type == type {
return registration.1()
}
}
return nil
}
}
// Usage
let container = DIContainer()
class MyService {
init() {
print("MyService initialized")
}
}
class MyOtherService {
init(myService: MyService) {
print("MyOtherService initialized with MyService")
}
}
container.register(MyService.self, factory: { MyService() })
container.register(MyOtherService.self, factory: { MyOtherService(myService: container.resolve(MyService.self)!) })
let myOtherService = container.resolve(MyOtherService.self)!
```if let type = registration.first as? T.Type, type == type { // value of type 'Any' has no member 'first'return registration.1() // value of type 'Any' has no member '1'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in self.registrations {
if registration.type == type {
return registration.factory()
}
}
return nil
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Any] = []
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations.append((type, factory))
}
func resolve<T>(_ type: T.Type) -> T? {
for registration in self.registrations {
if registration.type == type {
return registration.factory()
}
}
return nil
}
}
```if registration.type == type { // value of type 'Any' has no member 'type'return registration.factory() // value of type 'Any' has no member 'factory'protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}
```private var registrations: [Type: (() -> Any)] = [:] // cannot find type 'Type' in scopeprotocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Simple dependency injection (DI) container.
assistant
```swift
protocol DIContainerProtocol {
func register<T>(_ type: T.Type, factory: @escaping () -> T)
func resolve<T>(_ type: T.Type) -> T?
}
class DIContainer: DIContainerProtocol {
private var registrations: [Type: (() -> Any)] = [:]
func register<T>(_ type: T.Type, factory: @escaping () -> T) {
self.registrations[type] = factory
}
func resolve<T>(_ type: T.Type) -> T? {
if let factory = self.registrations[type] {
return factory()
}
return nil
}
}
// Usage
let container = DIContainer()
// Register a factory for a type
container.register(String.self, factory: { () -> Any {
return "Hello, World!"
}})
// Resolve a type
if let string = container.resolve(String.self) {
print(string) // "Hello, World!"
}
```private var registrations: [Type: (() -> Any)] = [:] // cannot find type 'Type' in scopeprotocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable> : StateMachineProtocol {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
var state: State {
return self.state
}
func trigger(event: Event) {
for transition in self.transitions {
if transition.from == self.state, transition.event == event {
self.state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
self.transitions.append((from, to, event))
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```swift
protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable> : StateMachineProtocol {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
var state: State {
return self.state
}
func trigger(event: Event) {
for transition in self.transitions {
if transition.from == self.state, transition.event == event {
self.state = transition.to
break
}
}
}
func registerTransition(from: State, to: State, event: Event) {
self.transitions.append((from, to, event))
}
}
```private var state: State // property 'state' must be declared internal because it matches a requirement in internal protocol 'StateMachineProtocol'init(state: State) { // initializer requirement 'init(state:)' can only be satisfied by a 'required' initializer in non-final class 'StateMachine<State, Event>'var state: State { // invalid redeclaration of 'state'if transition.from == self.state, transition.event == event { // value of tuple type '(State, State, Event)' has no member 'event'if transition.from == self.state, transition.event == event { // value of tuple type '(State, State, Event)' has no member 'from'self.state = transition.to // value of tuple type '(State, State, Event)' has no member 'to'protocol StateMachineProtocol {
associatedtype State: Hashable
associatedtype Event: Hashable
init(state: State)
var state: State { get }
func trigger(event: Event)
func registerTransition(from: State, to: State, event: Event)
}
class StateMachine<State: Hashable, Event: Hashable> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [State: [Event: (StateMachine<State, Event>, State)]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions[state]?[event] {
state = transition.1
transition.0.trigger(event: event)
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from]?[event] = (self, to)
}
override var stringDescription: String {
return "\(state)"
}
}
extension StateMachine {
func printStateMachine() {
print("State Machine: \(self)")
print("Current State: \(state)")
print("Transitions:")
for (from, transitions) in transitions {
for (event, transition) in transitions {
print("\tFrom: \(from), Event: \(event), To: \(transition.1)")
}
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [State: [Event: (StateMachine<State, Event>, State)]] = [:]
init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions[state]?[event] {
state = transition.1
transition.0.trigger(event: event)
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions[from]?[event] = (self, to)
}
override var stringDescription: String {
return "\(state)"
}
}
extension StateMachine {
func printStateMachine() {
print("State Machine: \(self)")
print("Current State: \(state)")
print("Transitions:")
for (from, transitions) in transitions {
for (event, transition) in transitions {
print("\tFrom: \(from), Event: \(event), To: \(transition.1)")
}
}
}
}
// Usage
let machine = StateMachine(state: "A")
machine.registerTransition(from: "A", to: "B", event: "event1")
machine.registerTransition(from: "B", to: "C", event: "event2")
machine.trigger(event: "event1")
machine.printStateMachine()
machine.trigger(event: "event2")
machine.printStateMachine()
```override var stringDescription: String { // property does not override any property from its superclasslet stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [State: [Event: (StateMachine<State, Event>, State)]] = [:]
init(state: State) {
self.state = state
}
var state: State {
return self.state
}
func trigger(event: Event) {
if let transition = self.transitions[self.state]?[event] {
self.state = transition.1
transition.0.performTransition(to: self.state)
}
}
func registerTransition(from: State, to: State, event: Event) {
if let transitions = self.transitions[from] {
transitions[event] = (self, to)
} else {
self.transitions[from] = [event: (self, to)]
}
}
private func performTransition(to: State) {
print("Transition from \(self.state) to \(to)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [State: [Event: (StateMachine<State, Event>, State)]] = [:]
init(state: State) {
self.state = state
}
var state: State {
return self.state
}
func trigger(event: Event) {
if let transition = self.transitions[self.state]?[event] {
self.state = transition.1
transition.0.performTransition(to: self.state)
}
}
func registerTransition(from: State, to: State, event: Event) {
if let transitions = self.transitions[from] {
transitions[event] = (self, to)
} else {
self.transitions[from] = [event: (self, to)]
}
}
private func performTransition(to: State) {
print("Transition from \(self.state) to \(to)")
}
}
// Usage
let machine = StateMachine(state: "State1")
machine.registerTransition(from: "State1", to: "State2", event: "Event1")
machine.registerTransition(from: "State2", to: "State3", event: "Event2")
machine.trigger(event: "Event1") // Prints: Transition from State1 to State2
machine.trigger(event: "Event2") // Prints: Transition from State2 to State3
```var state: State { // invalid redeclaration of 'state'transitions[event] = (self, to) // cannot assign through subscript: 'transitions' is a 'let' constantlet stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
var state: State {
return state
}
func trigger(event: Event) {
let nextState = transitions.first(where: { $0.event == event && $0.from == state })?.to
guard let nextState = nextState else {
print("No transition found for event \(event) from state \(state)")
return
}
self.state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
extension StateMachine {
func printState() {
print("Current state: \(state)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
var state: State {
return state
}
func trigger(event: Event) {
let nextState = transitions.first(where: { $0.event == event && $0.from == state })?.to
guard let nextState = nextState else {
print("No transition found for event \(event) from state \(state)")
return
}
self.state = nextState
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
extension StateMachine {
func printState() {
print("Current state: \(state)")
}
}
// Usage
let machine = StateMachine(state: .State1)
machine.registerTransition(from: .State1, to: .State2, event: .Event1)
machine.registerTransition(from: .State2, to: .State3, event: .Event2)
machine.trigger(event: .Event1)
machine.printState() // prints: Current state: State2
machine.trigger(event: .Event2)
machine.printState() // prints: Current state: State3
```var state: State { // invalid redeclaration of 'state'let nextState = transitions.first(where: { $0.event == event && $0.from == state })?.to // value of tuple type '(State, State, Event)' has no member 'from'let nextState = transitions.first(where: { $0.event == event && $0.from == state })?.to // value of tuple type '(State, State, Event)' has no member 'to'let nextState = transitions.first(where: { $0.event == event && $0.from == state })?.to // value of tuple type '(State, State, Event)' has no member 'event'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [State: [Event: (StateMachine<State, Event>, State)]] = [:]
init(state: State) {
self.state = state
}
var state: State {
return self.state
}
func trigger(event: Event) {
if let transition = self.transitions[self.state]?[event] {
self.state = transition.1
transition.0.performTransition(from: self.state, to: self.state)
}
}
func registerTransition(from: State, to: State, event: Event) {
if let transitions = self.transitions[from] {
transitions[event] = (self, to)
} else {
self.transitions[from] = [event: (self, to)]
}
}
private func performTransition(from: State, to: State) {
print("Transition from \(from) to \(to)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [State: [Event: (StateMachine<State, Event>, State)]] = [:]
init(state: State) {
self.state = state
}
var state: State {
return self.state
}
func trigger(event: Event) {
if let transition = self.transitions[self.state]?[event] {
self.state = transition.1
transition.0.performTransition(from: self.state, to: self.state)
}
}
func registerTransition(from: State, to: State, event: Event) {
if let transitions = self.transitions[from] {
transitions[event] = (self, to)
} else {
self.transitions[from] = [event: (self, to)]
}
}
private func performTransition(from: State, to: State) {
print("Transition from \(from) to \(to)")
}
}
// Usage
let machine = StateMachine(state: "State1")
machine.registerTransition(from: "State1", to: "State2", event: "Event1")
machine.registerTransition(from: "State2", to: "State1", event: "Event2")
machine.trigger(event: "Event1")
machine.trigger(event: "Event2")
```var state: State { // invalid redeclaration of 'state'transitions[event] = (self, to) // cannot assign through subscript: 'transitions' is a 'let' constantlet stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'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> where State: CustomStringConvertible, Event: CustomStringConvertible {
enum StateMachineError: Error {
case invalidTransition
}
private var state: State
private var transitions: [State: [Event: (from: State, to: State)]]
init(state: State) {
self.state = state
self.transitions = [:]
}
func trigger(event: Event) {
if let transition = transitions[state, event.self] {
self.state = transition.to
} else {
fatalError("Invalid transition: \(state) -> \(event)")
}
}
func registerTransition(from: State, to: State, event: Event) {
if let transitionsForEvent = transitions[from] {
transitionsForEvent[event] = (from: from, to: to)
} else {
transitions[from] = [event: (from: from, to: to)]
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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> where State: CustomStringConvertible, Event: CustomStringConvertible {
enum StateMachineError: Error {
case invalidTransition
}
private var state: State
private var transitions: [State: [Event: (from: State, to: State)]]
init(state: State) {
self.state = state
self.transitions = [:]
}
func trigger(event: Event) {
if let transition = transitions[state, event.self] {
self.state = transition.to
} else {
fatalError("Invalid transition: \(state) -> \(event)")
}
}
func registerTransition(from: State, to: State, event: Event) {
if let transitionsForEvent = transitions[from] {
transitionsForEvent[event] = (from: from, to: to)
} else {
transitions[from] = [event: (from: from, to: to)]
}
}
}
// Usage
let machine = StateMachine(state: .initial)
machine.registerTransition(from: .initial, to: .second, event: .event1)
machine.registerTransition(from: .second, to: .third, event: .event2)
machine.trigger(event: .event1)
print(machine.state.description) // "initial"
machine.trigger(event: .event2)
print(machine.state.description) // "third"
```if let transition = transitions[state, event.self] { // missing argument label 'default:' in subscriptif let transition = transitions[state, event.self] { // cannot convert value of type 'Event' to expected argument type '[Event : (from: State, to: State)]'transitionsForEvent[event] = (from: from, to: to) // cannot assign through subscript: 'transitionsForEvent' is a 'let' constantlet stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to
if let nextState = nextState {
self.state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
override var stringDescription: String {
return "Current state: \(self.state)"
}
}
extension StateMachine {
func printState() {
print(stringDescription)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to
if let nextState = nextState {
self.state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
override var stringDescription: String {
return "Current state: \(self.state)"
}
}
extension StateMachine {
func printState() {
print(stringDescription)
}
}
// Usage
let machine = StateMachine(state: .State1)
machine.registerTransition(from: .State1, to: .State2, event: .Event1)
machine.registerTransition(from: .State2, to: .State3, event: .Event2)
machine.printState()
machine.trigger(event: .Event1)
machine.printState()
machine.trigger(event: .Event2)
machine.printState()
```let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to // value of tuple type '(State, State, Event)' has no member 'event'let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to // value of tuple type '(State, State, Event)' has no member 'to'let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to // value of tuple type '(State, State, Event)' has no member 'from'override var stringDescription: String { // property does not override any property from its superclasslet stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to
if let nextState = nextState {
self.state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
override var stringDescription: String {
return "Current state: \(state)"
}
}
extension StateMachine {
func printTransitions() {
print("Transitions:")
for transition in transitions {
print("From: \(transition.from), To: \(transition.to), Event: \(transition.event)")
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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> where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to
if let nextState = nextState {
self.state = nextState
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
override var stringDescription: String {
return "Current state: \(state)"
}
}
extension StateMachine {
func printTransitions() {
print("Transitions:")
for transition in transitions {
print("From: \(transition.from), To: \(transition.to), Event: \(transition.event)")
}
}
}
// Usage
let machine = StateMachine(state: .State1)
machine.registerTransition(from: .State1, to: .State2, event: .Event1)
machine.registerTransition(from: .State2, to: .State3, event: .Event2)
machine.trigger(event: .Event1)
print(machine)
machine.trigger(event: .Event2)
print(machine)
machine.printTransitions()
```let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to // value of tuple type '(State, State, Event)' has no member 'event'let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to // value of tuple type '(State, State, Event)' has no member 'to'let nextState = transitions.first(where: { $0.event == event && $0.from == self.state })?.to // value of tuple type '(State, State, Event)' has no member 'from'override var stringDescription: String { // property does not override any property from its superclassprint("From: \(transition.from), To: \(transition.to), Event: \(transition.event)") // value of tuple type '(State, State, Event)' has no member 'from'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'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> where State: CustomStringConvertible, Event: CustomStringConvertible {
enum Error: Swift.Error {
case invalidTransition
}
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.event == event && $0.from == self.state }) {
self.state = transition.to
} else {
fatalError("Invalid event: \(event)")
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
extension StateMachine {
func printState() {
print("Current state: \(state)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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> where State: CustomStringConvertible, Event: CustomStringConvertible {
enum Error: Swift.Error {
case invalidTransition
}
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.event == event && $0.from == self.state }) {
self.state = transition.to
} else {
fatalError("Invalid event: \(event)")
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
}
extension StateMachine {
func printState() {
print("Current state: \(state)")
}
}
// Usage
let machine = StateMachine(state: .initial)
machine.registerTransition(from: .initial, to: .firstState, event: .event1)
machine.registerTransition(from: .firstState, to: .secondState, event: .event2)
machine.trigger(event: .event1)
machine.printState() // Current state: firstState
machine.trigger(event: .event2)
machine.printState() // Current state: secondState
```if let transition = transitions.first(where: { $0.event == event && $0.from == self.state }) { // cannot call value of non-function type '(State, State, Event)?'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'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>
where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.event == event && $0.from == self.state }) {
self.state = transition.to
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
override var stringDescription: String {
return "Current state: \(self.state)"
}
}
extension StateMachine {
func printState() {
print(stringDescription)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Finite state machine with possibility to register custom transitions between states.
assistant
```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>
where State: CustomStringConvertible, Event: CustomStringConvertible {
private var state: State
private var transitions: [(State, State, Event)] = []
init(state: State) {
self.state = state
}
func trigger(event: Event) {
if let transition = transitions.first(where: { $0.event == event && $0.from == self.state }) {
self.state = transition.to
}
}
func registerTransition(from: State, to: State, event: Event) {
transitions.append((from, to, event))
}
override var stringDescription: String {
return "Current state: \(self.state)"
}
}
extension StateMachine {
func printState() {
print(stringDescription)
}
}
// Usage
let machine = StateMachine(state: .start)
machine.registerTransition(from: .start, to: .second, event: .event1)
machine.registerTransition(from: .second, to: .third, event: .event2)
machine.trigger(event: .event1)
machine.printState() // Current state: .second
machine.trigger(event: .event2)
machine.printState() // Current state: .third
```if let transition = transitions.first(where: { $0.event == event && $0.from == self.state }) { // cannot call value of non-function type '(State, State, Event)?'override var stringDescription: String { // property does not override any property from its superclasslet stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // cannot infer contextual base in reference to member 'green'let stateMachine = StateMachine<TrafficLightState, TrafficLightEvent>(state: .green) // type 'TrafficLightState' does not conform to protocol 'CustomStringConvertible'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .red, to: .green, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'timer'stateMachine.registerTransition(from: .green, to: .yellow, event: .timer) // cannot infer contextual base in reference to member 'green'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'red'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'yellow'stateMachine.registerTransition(from: .yellow, to: .red, event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .yellow) // type 'Equatable' has no member 'yellow'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .red) // type 'Equatable' has no member 'red'stateMachine.trigger(event: .timer) // cannot infer contextual base in reference to member 'timer'XCTAssertEqual(stateMachine.state, .green) // type 'Equatable' has no member 'green'indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
// Usage
let root = FileSystemNode.directory(name: "root", contents: [
FileSystemNode.directory(name: "dir1", contents: [
FileSystemNode.file(name: "file1", size: 100),
FileSystemNode.directory(name: "dir2", contents: [
FileSystemNode.file(name: "file2", size: 200)
])
]),
FileSystemNode.file(name: "file3", size: 300)
])
print("Total size: \(root.totalSize)")
print("Files count: \(root.filesCount)")
print("Tree depth: \(root.treeDepth)")
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
protocol FileSystemManager {
func getDirectorySize(at path: String) -> Int
func getDirectoryContents(at path: String) -> [FileSystemNode]
func getDirectoryDepth(at path: String) -> Int
}
class FileSystemManager: FileSystemManager {
private var fileSystem: FileSystemNode
init(fileSystem: FileSystemNode) {
self.fileSystem = fileSystem
}
func getDirectorySize(at path: String) -> Int {
return fileSystem.contents.reduce(0, { $0 + $1.totalSize })
}
func getDirectoryContents(at path: String) -> [FileSystemNode] {
return fileSystem.contents
}
func getDirectoryDepth(at path: String) -> Int {
return fileSystem.contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
protocol FileSystemManager {
func getDirectorySize(at path: String) -> Int
func getDirectoryContents(at path: String) -> [FileSystemNode]
func getDirectoryDepth(at path: String) -> Int
}
class FileSystemManager: FileSystemManager {
private var fileSystem: FileSystemNode
init(fileSystem: FileSystemNode) {
self.fileSystem = fileSystem
}
func getDirectorySize(at path: String) -> Int {
return fileSystem.contents.reduce(0, { $0 + $1.totalSize })
}
func getDirectoryContents(at path: String) -> [FileSystemNode] {
return fileSystem.contents
}
func getDirectoryDepth(at path: String) -> Int {
return fileSystem.contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 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 size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}
let root = FileSystemNode.directory(name: "root", contents: [
FileSystemNode.directory(name: "dir1", contents: [
FileSystemNode.file(name: "file1", size: 100),
FileSystemNode.directory(name: "dir2", contents: [
FileSystemNode.file(name: "file2", size: 200)
])
]),
FileSystemNode.file(name: "file3", size: 300)
])
let info = calculateFileSystemInfo(node: root)
print("Total size: \(info.totalSize)")
print("Files count: \(info.filesCount)")
print("Tree depth: \(info.treeDepth)")
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
struct FileSystemManager: FileSystemInfo {
var fileSystem: FileSystemNode
var totalSize: Int {
return fileSystem.totalSize
}
var filesCount: Int {
return fileSystem.filesCount
}
var treeDepth: Int {
return fileSystem.treeDepth
}
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
struct FileSystemManager: FileSystemInfo {
var fileSystem: FileSystemNode
var totalSize: Int {
return fileSystem.totalSize
}
var filesCount: Int {
return fileSystem.filesCount
}
var treeDepth: Int {
return fileSystem.treeDepth
}
}
let fileSystemManager = FileSystemManager(fileSystem: .directory(name: "root", contents: [
.file(name: "file1", size: 100),
.file(name: "file2", size: 200),
.directory(name: "dir1", contents: [
.file(name: "file3", size: 300),
.directory(name: "dir2", contents: [
.file(name: "file4", size: 400),
]),
]),
]))
print("Total size: \(fileSystemManager.totalSize)")
print("Files count: \(fileSystemManager.filesCount)")
print("Tree depth: \(fileSystemManager.treeDepth)")
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}
let root = FileSystemNode.directory(name: "root", contents: [
FileSystemNode.directory(name: "dir1", contents: [
FileSystemNode.file(name: "file1", size: 100),
FileSystemNode.directory(name: "dir2", contents: [
FileSystemNode.file(name: "file2", size: 200),
]),
]),
FileSystemNode.file(name: "file3", size: 300),
])
print(calculateInfo(node: root))
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}
let root = FileSystemNode.directory(name: "root", contents: [
FileSystemNode.directory(name: "dir1", contents: [
FileSystemNode.file(name: "file1", size: 100),
FileSystemNode.directory(name: "dir2", contents: [
FileSystemNode.file(name: "file2", size: 200),
])
]),
FileSystemNode.file(name: "file3", size: 300)
])
let info = calculateFileSystemInfo(node: root)
print("Total size: \(info.totalSize)")
print("Files count: \(info.filesCount)")
print("Tree depth: \(info.treeDepth)")
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}
let root = FileSystemNode.directory(name: "root", contents: [
FileSystemNode.directory(name: "dir1", contents: [
FileSystemNode.file(name: "file1", size: 100),
FileSystemNode.directory(name: "dir2", contents: [
FileSystemNode.file(name: "file2", size: 200)
])
]),
FileSystemNode.file(name: "file3", size: 300)
])
let info = calculateFileSystemInfo(node: root)
print("Total size: \(info.totalSize)")
print("Files count: \(info.filesCount)")
print("Tree depth: \(info.treeDepth)")
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
func calculateFileSystemInfo(node: FileSystemNode) -> FileSystemInfo {
return node
}
let root = FileSystemNode.directory(name: "root", contents: [
FileSystemNode.directory(name: "dir1", contents: [
FileSystemNode.file(name: "file1", size: 100),
FileSystemNode.file(name: "file2", size: 200),
]),
FileSystemNode.directory(name: "dir2", contents: [
FileSystemNode.file(name: "file3", size: 300),
FileSystemNode.directory(name: "dir3", contents: [
FileSystemNode.file(name: "file4", size: 400),
]),
]),
])
let info = calculateFileSystemInfo(node: root)
print("Total size: \(info.totalSize)")
print("Files count: \(info.filesCount)")
print("Tree depth: \(info.treeDepth)")
```indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}user
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.
assistant
```swift
indirect enum FileSystemNode {
case file(name: String, size: Int)
case directory(name: String, contents: [FileSystemNode])
}
protocol FileSystemInfo {
var totalSize: Int { get }
var filesCount: Int { get }
var treeDepth: Int { get }
}
extension FileSystemNode: FileSystemInfo {
var totalSize: Int {
switch self {
case .file(let size):
return size
case .directory(let contents):
return contents.reduce(0, { $0 + $1.totalSize })
}
}
var filesCount: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return contents.reduce(0, { $0 + $1.filesCount })
}
}
var treeDepth: Int {
switch self {
case .file:
return 1
case .directory(let contents):
return 1 + contents.max { $0.treeDepth < $1.treeDepth }?.treeDepth ?? 0
}
}
}
// Usage
let root = FileSystemNode.directory(name: "root", contents: [
FileSystemNode.file(name: "file1", size: 10),
FileSystemNode.directory(name: "dir1", contents: [
FileSystemNode.file(name: "file2", size: 20),
FileSystemNode.directory(name: "dir2", contents: [
FileSystemNode.file(name: "file3", size: 30)
])
])
])
print("Total size: \(root.totalSize)")
print("Files count: \(root.filesCount)")
print("Tree depth: \(root.treeDepth)")
```protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
let stack = Stack<Int>()
stack.push(10)
stack.push(20)
let poppedElement = stack.pop()
print(poppedElement) // prints: 20
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
elements.append(element)
}
func pop() -> Element? {
return elements.popLast()
}
}
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
init() {
self.elements = []
}
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
init() {
self.elements = []
}
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
// Usage
let stack = Stack<Int>()
stack.push(10)
stack.push(20)
let poppedElement = stack.pop()
print(poppedElement) // prints: 20
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
init() {
self.elements = []
}
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
init() {
self.elements = []
}
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic stack with push and pop functions.
assistant
```swift
protocol StackProtocol {
associatedtype Element
init()
func push(_ element: Element)
func pop() -> Element?
}
class Stack<Element> implements StackProtocol {
private var elements: [Element] = []
func push(_ element: Element) {
self.elements.append(element)
}
func pop() -> Element? {
return self.elements.popLast()
}
}
```class Stack<Element> implements StackProtocol { // expected '{' in classstack.push(1) // value of type 'Stack<Int>' has no member 'push'stack.push(2) // value of type 'Stack<Int>' has no member 'push'XCTAssertEqual(stack.pop(), 2) // value of type 'Stack<Int>' has no member 'pop'XCTAssertEqual(stack.pop(), 1) // value of type 'Stack<Int>' has no member 'pop'XCTAssertNil(stack.pop()) // value of type 'Stack<Int>' has no member 'pop'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> {
private let capacity: Int
private let map: Dictionary<Key, Element>
private var orderedKeys: [Key]
init(capacity: Int) {
self.capacity = capacity
self.map = [:]
self.orderedKeys = []
}
func set(element: Element, forKey key: Key) {
if let _ = map[key] {
remove(forKey: key)
}
map[key] = element
orderedKeys.append(key)
while orderedKeys.count > capacity {
remove(forKey: orderedKeys.first!)
}
}
func remove(forKey key: Key) {
map.removeValue(forKey: key)
orderedKeys.removeAll(where: { $0 == key })
}
func get(forKey key: Key) -> Element? {
return map[key]
}
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> {
private let capacity: Int
private let map: Dictionary<Key, Element>
private var orderedKeys: [Key]
init(capacity: Int) {
self.capacity = capacity
self.map = [:]
self.orderedKeys = []
}
func set(element: Element, forKey key: Key) {
if let _ = map[key] {
remove(forKey: key)
}
map[key] = element
orderedKeys.append(key)
while orderedKeys.count > capacity {
remove(forKey: orderedKeys.first!)
}
}
func remove(forKey key: Key) {
map.removeValue(forKey: key)
orderedKeys.removeAll(where: { $0 == key })
}
func get(forKey key: Key) -> Element? {
return map[key]
}
}
```map[key] = element // cannot assign through subscript: 'map' is a 'let' constantmap.removeValue(forKey: key) // cannot use mutating member on immutable value: 'map' is a 'let' constantcache["a"] = 1 // value of type 'Cache<String, Int>' has no subscriptscache["b"] = 2 // value of type 'Cache<String, Int>' has no subscriptscache["c"] = 3 // This should evict key "a" // value of type 'Cache<String, Int>' has no subscriptsXCTAssertNil(cache["a"]) // value of type 'Cache<String, Int>' has no subscriptsXCTAssertEqual(cache["b"], 2) // value of type 'Cache<String, Int>' has no subscriptsXCTAssertEqual(cache["c"], 3) // value of type 'Cache<String, Int>' has no subscriptsprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: Cacheable {
private let capacity: Int
private var cache: Dictionary<Key, Element>
init(capacity: Int) {
self.capacity = capacity
self.cache = [:]
}
func put(key: Key, value: Element) {
if let _ = cache[key] {
remove(key: key)
}
if cache.count >= capacity {
removeLeastRecentlyUsed()
}
cache[key] = value
}
func get(key: Key) -> Element? {
return cache[key]
}
func remove(key: Key) {
cache.removeValue(forKey: key)
}
private func removeLeastRecentlyUsed() {
let keys = Array(cache.keys)
cache.removeValue(forKey: keys.first!)
}
}
protocol Cacheable {
// Add any additional properties or methods needed for your cache
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: Cacheable {
private let capacity: Int
private var cache: Dictionary<Key, Element>
init(capacity: Int) {
self.capacity = capacity
self.cache = [:]
}
func put(key: Key, value: Element) {
if let _ = cache[key] {
remove(key: key)
}
if cache.count >= capacity {
removeLeastRecentlyUsed()
}
cache[key] = value
}
func get(key: Key) -> Element? {
return cache[key]
}
func remove(key: Key) {
cache.removeValue(forKey: key)
}
private func removeLeastRecentlyUsed() {
let keys = Array(cache.keys)
cache.removeValue(forKey: keys.first!)
}
}
protocol Cacheable {
// Add any additional properties or methods needed for your cache
}
// Example usage
let cache = Cache<String, Int>(capacity: 5)
cache.put(key: "1", value: 1)
cache.put(key: "2", value: 2)
cache.put(key: "3", value: 3)
cache.put(key: "4", value: 4)
cache.put(key: "5", value: 5)
print(cache.get(key: "1")) // prints: 1
cache.put(key: "6", value: 6)
print(cache.get(key: "2")) // prints: nil (as "2" has been removed due to capacity limit)
```let cache = Cache<String, Int>(capacity: 2) // type 'Int' does not conform to protocol 'Cacheable'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> {
private var cache: Dictionary<Key, Element> = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
func put(key: Key, value: Element) {
if let _ = cache[key] {
order.removeAll(where: { $0 == key })
} else if cache.count >= capacity {
cache.removeValue(forKey: order.first!)
order.remove(at: 0)
}
cache[key] = value
order.append(key)
}
func get(key: Key) -> Element? {
if let value = cache[key] {
order.removeAll(where: { $0 == key })
order.append(key)
return value
}
return nil
}
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> {
private var cache: Dictionary<Key, Element> = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
func put(key: Key, value: Element) {
if let _ = cache[key] {
order.removeAll(where: { $0 == key })
} else if cache.count >= capacity {
cache.removeValue(forKey: order.first!)
order.remove(at: 0)
}
cache[key] = value
order.append(key)
}
func get(key: Key) -> Element? {
if let value = cache[key] {
order.removeAll(where: { $0 == key })
order.append(key)
return value
}
return nil
}
}
```cache["a"] = 1 // value of type 'Cache<String, Int>' has no subscriptscache["b"] = 2 // value of type 'Cache<String, Int>' has no subscriptscache["c"] = 3 // This should evict key "a" // value of type 'Cache<String, Int>' has no subscriptsXCTAssertNil(cache["a"]) // value of type 'Cache<String, Int>' has no subscriptsXCTAssertEqual(cache["b"], 2) // value of type 'Cache<String, Int>' has no subscriptsXCTAssertEqual(cache["c"], 3) // value of type 'Cache<String, Int>' has no subscriptsprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: Cacheable {
private let capacity: Int
private var cache: Dictionary<Key, Element>
private var accessOrder: OrderedSet<Key>
init(capacity: Int) {
self.capacity = capacity
self.cache = [:]
self.accessOrder = OrderedSet()
}
func get(key: Key) -> Element? {
if let element = cache[key] {
accessOrder.remove(key)
accessOrder.insert(key)
return element
}
return nil
}
func set(element: Element, forKey key: Key) {
if let oldElement = get(key: key) {
cache.removeValue(forKey: key)
accessOrder.remove(key)
}
if cache.count >= capacity {
let leastRecentlyUsedKey = accessOrder.first ?? key
cache.removeValue(forKey: leastRecentlyUsedKey)
accessOrder.remove(leastRecentlyUsedKey)
}
cache[key] = element
accessOrder.insert(key)
}
}
protocol Cacheable {
// Define your cacheable protocol here
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: Cacheable {
private let capacity: Int
private var cache: Dictionary<Key, Element>
private var accessOrder: OrderedSet<Key>
init(capacity: Int) {
self.capacity = capacity
self.cache = [:]
self.accessOrder = OrderedSet()
}
func get(key: Key) -> Element? {
if let element = cache[key] {
accessOrder.remove(key)
accessOrder.insert(key)
return element
}
return nil
}
func set(element: Element, forKey key: Key) {
if let oldElement = get(key: key) {
cache.removeValue(forKey: key)
accessOrder.remove(key)
}
if cache.count >= capacity {
let leastRecentlyUsedKey = accessOrder.first ?? key
cache.removeValue(forKey: leastRecentlyUsedKey)
accessOrder.remove(leastRecentlyUsedKey)
}
cache[key] = element
accessOrder.insert(key)
}
}
protocol Cacheable {
// Define your cacheable protocol here
}
```private var accessOrder: OrderedSet<Key> // cannot find type 'OrderedSet' in scopeself.accessOrder = OrderedSet() // cannot find 'OrderedSet' in scopelet cache = Cache<String, Int>(capacity: 2) // type 'Int' does not conform to protocol 'Cacheable'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: CacheElement {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
func get(key: Key) -> Element? {
if let element = cache[key] {
keys.removeAll(where: { $0 == key })
keys.append(key)
return element
}
return nil
}
func set(element: Element, forKey key: Key) {
if let _ = cache[key] {
cache.removeValue(forKey: key)
}
if keys.count == capacity {
let leastRecentlyUsedKey = keys.first!
cache.removeValue(forKey: leastRecentlyUsedKey)
keys.removeAll(where: { $0 == leastRecentlyUsedKey })
}
cache[key] = element
keys.append(key)
}
}
protocol CacheElement {
// Define your element's properties and methods here
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: CacheElement {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
func get(key: Key) -> Element? {
if let element = cache[key] {
keys.removeAll(where: { $0 == key })
keys.append(key)
return element
}
return nil
}
func set(element: Element, forKey key: Key) {
if let _ = cache[key] {
cache.removeValue(forKey: key)
}
if keys.count == capacity {
let leastRecentlyUsedKey = keys.first!
cache.removeValue(forKey: leastRecentlyUsedKey)
keys.removeAll(where: { $0 == leastRecentlyUsedKey })
}
cache[key] = element
keys.append(key)
}
}
protocol CacheElement {
// Define your element's properties and methods here
}
```let cache = Cache<String, Int>(capacity: 2) // type 'Int' does not conform to protocol 'CacheElement'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: CacheElement {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
func get(key: Key) -> Element? {
if let element = cache[key] {
keys.removeAll(where: { $0 == key })
keys.append(key)
return element
}
return nil
}
func set(element: Element, forKey key: Key) {
if let existingElement = cache[key] {
keys.removeAll(where: { $0 == key })
} else if keys.count == capacity {
cache.removeValue(forKey: keys.first!)
keys.removeFirst()
}
cache[key] = element
keys.append(key)
}
}
protocol CacheElement {
// Define your element protocol here
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: CacheElement {
private let capacity: Int
private var cache: [Key: Element] = [:]
private var keys: [Key] = []
init(capacity: Int) {
self.capacity = capacity
}
func get(key: Key) -> Element? {
if let element = cache[key] {
keys.removeAll(where: { $0 == key })
keys.append(key)
return element
}
return nil
}
func set(element: Element, forKey key: Key) {
if let existingElement = cache[key] {
keys.removeAll(where: { $0 == key })
} else if keys.count == capacity {
cache.removeValue(forKey: keys.first!)
keys.removeFirst()
}
cache[key] = element
keys.append(key)
}
}
protocol CacheElement {
// Define your element protocol here
}
```if let existingElement = cache[key] { // value 'existingElement' was defined but never used; consider replacing with boolean testlet cache = Cache<String, Int>(capacity: 2) // type 'Int' does not conform to protocol 'CacheElement'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> {
private let capacity: Int
private var cache: Dictionary<Key, Element> = []
private var accessOrder: OrderedSet<Key> = []
init(capacity: Int) {
self.capacity = capacity
}
func get(key: Key) -> Element? {
if let value = cache[key] {
accessOrder.remove(key)
accessOrder.insert(key)
return value
}
return nil
}
func set(key: Key, value: Element) {
if let oldValue = get(key: key) {
cache.removeValue(forKey: key)
}
if cache.count >= capacity {
let leastRecentlyUsedKey = accessOrder.first!
accessOrder.remove(leastRecentlyUsedKey)
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = value
accessOrder.insert(key)
}
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> {
private let capacity: Int
private var cache: Dictionary<Key, Element> = []
private var accessOrder: OrderedSet<Key> = []
init(capacity: Int) {
self.capacity = capacity
}
func get(key: Key) -> Element? {
if let value = cache[key] {
accessOrder.remove(key)
accessOrder.insert(key)
return value
}
return nil
}
func set(key: Key, value: Element) {
if let oldValue = get(key: key) {
cache.removeValue(forKey: key)
}
if cache.count >= capacity {
let leastRecentlyUsedKey = accessOrder.first!
accessOrder.remove(leastRecentlyUsedKey)
cache.removeValue(forKey: leastRecentlyUsedKey)
}
cache[key] = value
accessOrder.insert(key)
}
}
```private var cache: Dictionary<Key, Element> = [] // use [:] to get an empty dictionary literalprivate var accessOrder: OrderedSet<Key> = [] // cannot find type 'OrderedSet' in scopecache["a"] = 1 // value of type 'Cache<String, Int>' has no subscriptscache["b"] = 2 // value of type 'Cache<String, Int>' has no subscriptscache["c"] = 3 // This should evict key "a" // value of type 'Cache<String, Int>' has no subscriptsXCTAssertNil(cache["a"]) // value of type 'Cache<String, Int>' has no subscriptsXCTAssertEqual(cache["b"], 2) // value of type 'Cache<String, Int>' has no subscriptsXCTAssertEqual(cache["c"], 3) // value of type 'Cache<String, Int>' has no subscriptsprotocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: Cacheable {
private var cache: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
func get(key: Key) -> Element? {
if let element = cache[key] {
order.removeAll(matching: key)
order.append(key)
return element
}
return nil
}
func set(element: Element, forKey key: Key) {
if let oldElement = get(key: key) {
order.removeAll(matching: key)
} else {
if cache.count >= capacity {
let oldestKey = order.first!
cache.removeValue(forKey: oldestKey)
order.removeAll(matching: oldestKey)
}
}
cache[key] = element
order.append(key)
}
}
protocol Cacheable {
// Add any additional protocol requirements here
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: Cacheable {
private var cache: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
func get(key: Key) -> Element? {
if let element = cache[key] {
order.removeAll(matching: key)
order.append(key)
return element
}
return nil
}
func set(element: Element, forKey key: Key) {
if let oldElement = get(key: key) {
order.removeAll(matching: key)
} else {
if cache.count >= capacity {
let oldestKey = order.first!
cache.removeValue(forKey: oldestKey)
order.removeAll(matching: oldestKey)
}
}
cache[key] = element
order.append(key)
}
}
protocol Cacheable {
// Add any additional protocol requirements here
}
```order.removeAll(matching: key) // extra argument 'matching' in callorder.removeAll(matching: key) // extra argument 'matching' in callorder.removeAll(matching: oldestKey) // extra argument 'matching' in calllet cache = Cache<String, Int>(capacity: 2) // type 'Int' does not conform to protocol 'Cacheable'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: Cacheable {
private var cache: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
func put(key: Key, value: Element) {
if let existing = cache[key] {
order.removeAll(where: { $0 == key })
} else if order.count == capacity {
let oldestKey = order.first!
order.removeAll(where: { $0 == oldestKey })
cache.removeValue(forKey: oldestKey)
}
cache[key] = value
order.append(key)
}
func get(key: Key) -> Element? {
if let value = cache[key] {
order.removeAll(where: { $0 == key })
order.append(key)
return value
}
return nil
}
}
protocol Cacheable {
// Add any additional properties or methods you need for your cache elements
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> where Element: Cacheable {
private var cache: [Key: Element] = [:]
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
func put(key: Key, value: Element) {
if let existing = cache[key] {
order.removeAll(where: { $0 == key })
} else if order.count == capacity {
let oldestKey = order.first!
order.removeAll(where: { $0 == oldestKey })
cache.removeValue(forKey: oldestKey)
}
cache[key] = value
order.append(key)
}
func get(key: Key) -> Element? {
if let value = cache[key] {
order.removeAll(where: { $0 == key })
order.append(key)
return value
}
return nil
}
}
protocol Cacheable {
// Add any additional properties or methods you need for your cache elements
}
// Example usage
let cache = Cache<String, Int>(capacity: 5)
cache.put(key: "1", value: 1)
cache.put(key: "2", value: 2)
cache.put(key: "3", value: 3)
cache.put(key: "4", value: 4)
cache.put(key: "5", value: 5)
cache.put(key: "6", value: 6) // This will remove "1" because the cache is full
```if let existing = cache[key] { // value 'existing' was defined but never used; consider replacing with boolean testlet cache = Cache<String, Int>(capacity: 2) // type 'Int' does not conform to protocol 'Cacheable'protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> {
private var cache: Dictionary<Key, Element> = []
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
func put(key: Key, value: Element) {
if let _ = cache[key] {
order.removeAll(where: { $0 == key })
} else if cache.count >= capacity {
cache.removeValue(forKey: order.first!)
order.remove(at: 0)
}
cache[key] = value
order.append(key)
}
func get(key: Key) -> Element? {
if let value = cache[key] {
order.removeAll(where: { $0 == key })
order.append(key)
return value
}
return nil
}
}user
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.
assistant
```swift
protocol CacheProtocol {
associatedtype Key: Hashable
associatedtype Element
init(capacity: Int)
subscript(key: Key) -> Element? { get set }
}
class Cache<Key: Hashable, Element> {
private var cache: Dictionary<Key, Element> = []
private var order: [Key] = []
private let capacity: Int
init(capacity: Int) {
self.capacity = capacity
}
func put(key: Key, value: Element) {
if let _ = cache[key] {
order.removeAll(where: { $0 == key })
} else if cache.count >= capacity {
cache.removeValue(forKey: order.first!)
order.remove(at: 0)
}
cache[key] = value
order.append(key)
}
func get(key: Key) -> Element? {
if let value = cache[key] {
order.removeAll(where: { $0 == key })
order.append(key)
return value
}
return nil
}
}
```private var cache: Dictionary<Key, Element> = [] // use [:] to get an empty dictionary literalcache["a"] = 1 // value of type 'Cache<String, Int>' has no subscriptscache["b"] = 2 // value of type 'Cache<String, Int>' has no subscriptscache["c"] = 3 // This should evict key "a" // value of type 'Cache<String, Int>' has no subscriptsXCTAssertNil(cache["a"]) // value of type 'Cache<String, Int>' has no subscriptsXCTAssertEqual(cache["b"], 2) // value of type 'Cache<String, Int>' has no subscriptsXCTAssertEqual(cache["c"], 3) // value of type 'Cache<String, Int>' has no subscriptsprotocol 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 date = Date()
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
if let entry = cache[key], entry.expirationDate > Date() {
return entry.value
} else {
return nil
}
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: [Key: (Value, Date)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let expirationDate = Date(timeIntervalSinceNow: expiration)
cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
if let entry = cache[key], entry.expirationDate > Date() {
return entry.value
} else {
return nil
}
}
}
let cache = ExpirableCache<String, Int>()
cache.put(value: 1, key: "test", expiration: 5)
print(cache.get(key: "test")) // prints: 1
sleep(2)
print(cache.get(key: "test")) // prints: nil
```let date = Date() // initialization of immutable value 'date' was never used; consider replacing with assignment to '_' or removing itif let entry = cache[key], entry.expirationDate > Date() { // value of tuple type '(Value, Date)' has no member 'expirationDate'return entry.value // value of tuple type '(Value, Date)' has no member 'value'Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private let cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = (tuple, date.addingTimeInterval(expiration, relativeTo: date))
}
func get(key: Key) -> Value? {
if let entry = self.cache[key] {
let now = Date()
if entry.1.isAfter(now) {
return entry.0
} else {
self.cache.removeValue(forKey: key)
return nil
}
}
return nil
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private let cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = (tuple, date.addingTimeInterval(expiration, relativeTo: date))
}
func get(key: Key) -> Value? {
if let entry = self.cache[key] {
let now = Date()
if entry.1.isAfter(now) {
return entry.0
} else {
self.cache.removeValue(forKey: key)
return nil
}
}
return nil
}
}
// Usage
let cache = ExpirableCache<String, Int>()
cache.put(value: 1, key: "one", expiration: 1)
let value = cache.get(key: "one")
print(value) // prints: nil
```self.cache[key] = (tuple, date.addingTimeInterval(expiration, relativeTo: date)) // cannot assign value of type '((Value, Date), Date)' to subscript of type '(Value, Date)'self.cache[key] = (tuple, date.addingTimeInterval(expiration, relativeTo: date)) // extra argument 'relativeTo' in callself.cache[key] = (tuple, date.addingTimeInterval(expiration, relativeTo: date)) // cannot assign through subscript: 'cache' is a 'let' constantif entry.1.isAfter(now) { // value of type 'Date' has no member 'isAfter'self.cache.removeValue(forKey: key) // cannot use mutating member on immutable value: 'cache' is a 'let' constantThread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private let cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds))
self.cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
if let entry = self.cache[key], entry.1 > Date() {
return entry.0
} else {
self.cache.removeValue(forKey: key)
return nil
}
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private let cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds))
self.cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
if let entry = self.cache[key], entry.1 > Date() {
return entry.0
} else {
self.cache.removeValue(forKey: key)
return nil
}
}
}
// Usage
let cache = ExpirableCache<String, String>()
cache.put(value: "Hello", key: "1", expiration: 5)
print(cache.get(key: "1")) // prints "Hello"
sleep(.seconds, duration: 6)
print(cache.get(key: "1")) // prints nil
```let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds)) // value of type 'TimeInterval' (aka 'Double') has no member 'seconds'let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds)) // value of type 'Date' has no member 'adding'let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds)) // cannot infer contextual base in reference to member 'seconds'self.cache[key] = (value, expirationDate) // cannot assign through subscript: 'cache' is a 'let' constantself.cache.removeValue(forKey: key) // cannot use mutating member on immutable value: 'cache' is a 'let' constantThread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds))
self.cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
if let (value, _) = self.cache[key], Date() <= value.1 {
return value.0
}
return nil
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds))
self.cache[key] = (value, expirationDate)
}
func get(key: Key) -> Value? {
if let (value, _) = self.cache[key], Date() <= value.1 {
return value.0
}
return nil
}
}
// Usage
let cache = ExpirableCache<String, String>()
cache.put(value: "Hello", key: "1", expiration: 5)
print(cache.get(key: "1")) // Hello
sleep(.seconds, duration: 6)
print(cache.get(key: "1")) // nil
```let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds)) // value of type 'TimeInterval' (aka 'Double') has no member 'seconds'let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds)) // value of type 'Date' has no member 'adding'let expirationDate = Date().adding(.seconds, duration: Int(expiration.seconds)) // cannot infer contextual base in reference to member 'seconds'if let (value, _) = self.cache[key], Date() <= value.1 { // value of type 'Value' has no member '1'return value.0 // value of type 'Value' has no member '0'Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private let cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = (tuple, date.adding(...expiration, unit: .second))
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
let currentDate = Date()
if value.1.isBefore(currentDate) {
self.cache.removeValue(forKey: key)
return nil
}
return value.0
}
return nil
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private let cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = (tuple, date.adding(...expiration, unit: .second))
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
let currentDate = Date()
if value.1.isBefore(currentDate) {
self.cache.removeValue(forKey: key)
return nil
}
return value.0
}
return nil
}
}
// Usage
let cache = ExpirableCache<String, String>()
cache.put(value: "Hello", key: "1", expiration: 5)
print(cache.get(key: "1")) // Hello
sleep(.second, count: 6)
print(cache.get(key: "1")) // nil
```self.cache[key] = (tuple, date.adding(...expiration, unit: .second)) // cannot infer contextual base in reference to member 'second'self.cache[key] = (tuple, date.adding(...expiration, unit: .second)) // cannot assign through subscript: 'cache' is a 'let' constantself.cache[key] = (tuple, date.adding(...expiration, unit: .second)) // value of type 'Date' has no member 'adding'self.cache[key] = (tuple, date.adding(...expiration, unit: .second)) // cannot assign value of type '((Value, Date), Date)' to subscript of type '(Value, Date)'if value.1.isBefore(currentDate) { // value of type 'Date' has no member 'isBefore'self.cache.removeValue(forKey: key) // cannot use mutating member on immutable value: 'cache' is a 'let' constantThread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = tuple
DispatchQueue.main.asyncAfter(deadline: .now() + expiration) {
self.cache.removeValue(forKey: key)
}
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
if value.1.timeIntervalSince(Date()) > 0 {
return value.0
}
}
return nil
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = tuple
DispatchQueue.main.asyncAfter(deadline: .now() + expiration) {
self.cache.removeValue(forKey: key)
}
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
if value.1.timeIntervalSince(Date()) > 0 {
return value.0
}
}
return nil
}
}
let cache = ExpirableCache<String, String>()
cache.put(value: "Hello", key: "1", expiration: 5)
print(cache.get(key: "1")) // prints "Hello"
sleep(2)
print(cache.get(key: "1")) // prints nil
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value> {
private var cache: [Key: (Value, TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration + Date().timeIntervalSince1970)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key], Date().timeIntervalSince1970 < expiration {
return value
} else {
return nil
}
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value> {
private var cache: [Key: (Value, TimeInterval)] = [:]
func put(value: Value, key: Key, expiration: TimeInterval) {
cache[key] = (value, expiration + Date().timeIntervalSince1970)
}
func get(key: Key) -> Value? {
if let (value, expiration) = cache[key], Date().timeIntervalSince1970 < expiration {
return value
} else {
return nil
}
}
}
let cache = ExpirableCache<Int, String>()
cache.put(value: "Hello", key: 1, expiration: 1)
print(cache.get(key: 1)) // prints "Hello"
sleep(2)
print(cache.get(key: 1)) // prints nil
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = tuple
DispatchQueue.main.asyncAfter(deadline: .now() + expiration) {
self.cache.removeValue(forKey: key)
}
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
if value.1.timeIntervalSince(Date()) > 0 {
return value.0
}
}
return nil
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = tuple
DispatchQueue.main.asyncAfter(deadline: .now() + expiration) {
self.cache.removeValue(forKey: key)
}
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
if value.1.timeIntervalSince(Date()) > 0 {
return value.0
}
}
return nil
}
}
let cache = ExpirableCache<String, String>()
cache.put(value: "Hello", key: "1", expiration: 5)
print(cache.get(key: "1")) // prints "Hello"
print(cache.get(key: "2")) // prints nil
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = tuple
DispatchQueue.main.asyncAfter(deadline: .now() + expiration) {
self.cache.removeValue(forKey: key)
}
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
if value.1.timeIntervalSince(Date()) > 0 {
return value.0
}
}
return nil
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = tuple
DispatchQueue.main.asyncAfter(deadline: .now() + expiration) {
self.cache.removeValue(forKey: key)
}
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
if value.1.timeIntervalSince(Date()) > 0 {
return value.0
}
}
return nil
}
}
let cache = ExpirableCache<String, String>()
cache.put(value: "Hello", key: "1", expiration: 5)
print(cache.get(key: "1")) // Hello
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = tuple
DispatchQueue.main.asyncAfter(deadline: .now() + expiration) {
self.cache.removeValue(forKey: key)
}
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
if value.1.timeIntervalSince(Date()) > 0 {
return value.0
}
}
return nil
}
}user
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.
assistant
```swift
protocol ExpirableCacheProtocol {
associatedtype Key: Hashable
associatedtype Value
func put(value: Value, key: Key, expiration: TimeInterval)
func get(key: Key) -> Value?
}
class ExpirableCache<Key: Hashable, Value>: ExpirableCacheProtocol {
private var cache: Dictionary<Key, (Value, Date)>
init() {
self.cache = [:]
}
func put(value: Value, key: Key, expiration: TimeInterval) {
let date = Date()
let tuple = (value, date)
self.cache[key] = tuple
DispatchQueue.main.asyncAfter(deadline: .now() + expiration) {
self.cache.removeValue(forKey: key)
}
}
func get(key: Key) -> Value? {
if let value = self.cache[key] {
if value.1.timeIntervalSince(Date()) > 0 {
return value.0
}
}
return nil
}
}
let cache = ExpirableCache<String, String>()
cache.put(value: "Hello", key: "1", expiration: 5)
print(cache.get(key: "1")) // prints "Hello"
sleep(2)
print(cache.get(key: "1")) // prints nil
```Thread.sleep(forTimeInterval: 1.1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6Thread.sleep(forTimeInterval: 0.9) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6 // XCTAssertEqual failed: (nil) is not equal to (Optional("Hello, SwiftEval!"))protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
var keyIndex = 0
var encryptedString = ""
for character in string {
let keyValue = Int(String(key[keyIndex]))
let stringValue = Int(String(character))
let xorResult = String(keyValue ^ stringValue)
encryptedString.append(String(xorResult))
keyIndex = (keyIndex + 1) % key.count
}
return Data(encryptedString.utf8)
}
func decrypt(_ data: Data, _ key: String) -> String {
var keyIndex = 0
var decryptedString = ""
for byte in data.hexEncodedString() {
let keyValue = Int(String(key[keyIndex]))
let byteValue = Int(String(byte))
let xorResult = String(keyValue ^ byteValue)
decryptedString.append(String(xorResult))
keyIndex = (keyIndex + 1) % key.count
}
return decryptedString
}
}user
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.
assistant
```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 keyIndex = 0
var encryptedString = ""
for character in string {
let keyValue = Int(String(key[keyIndex]))
let stringValue = Int(String(character))
let xorResult = String(keyValue ^ stringValue)
encryptedString.append(String(xorResult))
keyIndex = (keyIndex + 1) % key.count
}
return Data(encryptedString.utf8)
}
func decrypt(_ data: Data, _ key: String) -> String {
var keyIndex = 0
var decryptedString = ""
for byte in data.hexEncodedString() {
let keyValue = Int(String(key[keyIndex]))
let byteValue = Int(String(byte))
let xorResult = String(keyValue ^ byteValue)
decryptedString.append(String(xorResult))
keyIndex = (keyIndex + 1) % key.count
}
return decryptedString
}
}
```let keyValue = Int(String(key[keyIndex])) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.let xorResult = String(keyValue ^ stringValue) // binary operator '^' cannot be applied to two 'Int?' operandsfor byte in data.hexEncodedString() { // value of type 'Data' has no member 'hexEncodedString'let keyValue = Int(String(key[keyIndex])) // '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 {
var result = Data()
for (i, c) in string.enumerated() {
let index = i % key.count
let keyValue = Int(String(key[index]))
let stringValue = Int(String(c))
let xorResult = stringValue ^ keyValue
result.append(Character(String(xorResult)))
}
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
var result = ""
for (i, c) in data.enumerated() {
let index = i % key.count
let keyValue = Int(String(key[index]))
let xorResult = Int(String(c))!
let decryptedValue = xorResult ^ keyValue
result.append(Character(String(decryptedValue)))
}
return result
}
}user
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.
assistant
```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 result = Data()
for (i, c) in string.enumerated() {
let index = i % key.count
let keyValue = Int(String(key[index]))
let stringValue = Int(String(c))
let xorResult = stringValue ^ keyValue
result.append(Character(String(xorResult)))
}
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
var result = ""
for (i, c) in data.enumerated() {
let index = i % key.count
let keyValue = Int(String(key[index]))
let xorResult = Int(String(c))!
let decryptedValue = xorResult ^ keyValue
result.append(Character(String(decryptedValue)))
}
return result
}
}
```let keyValue = Int(String(key[index])) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.let xorResult = stringValue ^ keyValue // binary operator '^' cannot be applied to two 'Int?' operandsresult.append(Character(String(xorResult))) // cannot convert value of type 'Character' to expected argument type 'Data'let keyValue = Int(String(key[index])) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.let decryptedValue = xorResult ^ keyValue // value of optional type 'Int?' must be unwrapped to a value of type 'Int'protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
var data = Data(string.utf8)
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
let byte = data[i]
let xor = byte ^ keyData[keyIndex]
data.replace(at: i, with: xor)
}
return data
}
func decrypt(_ data: Data, _ key: String) -> String {
var data = data
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
let byte = data[i]
let xor = byte ^ keyData[keyIndex]
data.replace(at: i, with: xor)
}
return String(data)
}
}user
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.
assistant
```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 data = Data(string.utf8)
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
let byte = data[i]
let xor = byte ^ keyData[keyIndex]
data.replace(at: i, with: xor)
}
return data
}
func decrypt(_ data: Data, _ key: String) -> String {
var data = data
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
let byte = data[i]
let xor = byte ^ keyData[keyIndex]
data.replace(at: i, with: xor)
}
return String(data)
}
}
```data.replace(at: i, with: xor) // extraneous argument label 'at:' in calldata.replace(at: i, with: xor) // instance method 'replace(_:with:maxReplacements:)' requires that 'Int' conform to 'Collection'data.replace(at: i, with: xor) // instance method 'replace(_:with:maxReplacements:)' requires that 'UInt8' conform to 'Collection'data.replace(at: i, with: xor) // extraneous argument label 'at:' in calldata.replace(at: i, with: xor) // instance method 'replace(_:with:maxReplacements:)' requires that 'Int' conform to 'Collection'data.replace(at: i, with: xor) // instance method 'replace(_:with:maxReplacements:)' requires that 'UInt8' conform to 'Collection'return String(data) // no exact matches in call to initializerprotocol 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 data = Data(string.utf8)
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
data[i].withExclusiveOr(keyData[keyIndex])
}
return data
}
func decrypt(_ data: Data, _ key: String) -> String {
var data = data
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
data[i].withExclusiveOr(keyData[keyIndex].inverse)
}
return String(data)
}
}user
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.
assistant
```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 data = Data(string.utf8)
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
data[i].withExclusiveOr(keyData[keyIndex])
}
return data
}
func decrypt(_ data: Data, _ key: String) -> String {
var data = data
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
data[i].withExclusiveOr(keyData[keyIndex].inverse)
}
return String(data)
}
}
```data[i].withExclusiveOr(keyData[keyIndex]) // value of type 'UInt8' has no member 'withExclusiveOr'data[i].withExclusiveOr(keyData[keyIndex].inverse) // value of type 'UInt8' has no member 'inverse'data[i].withExclusiveOr(keyData[keyIndex].inverse) // value of type 'UInt8' has no member 'withExclusiveOr'return String(data) // no exact matches in call to initializerprotocol 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 keyIndex = 0
var result = ""
for char in string {
let keyChar = key.unicodeScalars[keyIndex]
let xor = Int(char.value) ^ Int(keyChar.value)
result.append(UnicodeScalar(xor)!)
keyIndex = (keyIndex + 1) % key.unicodeScalars.count
}
return Data(result.unicodeScalars.map { $0.value }.map { Int($0)! })
}
func decrypt(_ data: Data, _ key: String) -> String {
var keyIndex = 0
var result = ""
for char in data.map { Int($0)! } {
let keyChar = key.unicodeScalars[keyIndex]
let xor = char ^ Int(keyChar.value)
result.append(UnicodeScalar(xor)!)
keyIndex = (keyIndex + 1) % key.unicodeScalars.count
}
return result
}
}user
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.
assistant
```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 keyIndex = 0
var result = ""
for char in string {
let keyChar = key.unicodeScalars[keyIndex]
let xor = Int(char.value) ^ Int(keyChar.value)
result.append(UnicodeScalar(xor)!)
keyIndex = (keyIndex + 1) % key.unicodeScalars.count
}
return Data(result.unicodeScalars.map { $0.value }.map { Int($0)! })
}
func decrypt(_ data: Data, _ key: String) -> String {
var keyIndex = 0
var result = ""
for char in data.map { Int($0)! } {
let keyChar = key.unicodeScalars[keyIndex]
let xor = char ^ Int(keyChar.value)
result.append(UnicodeScalar(xor)!)
keyIndex = (keyIndex + 1) % key.unicodeScalars.count
}
return result
}
}
```let keyChar = key.unicodeScalars[keyIndex] // no exact matches in call to subscriptlet xor = Int(char.value) ^ Int(keyChar.value) // value of type 'Character' has no member 'value'result.append(UnicodeScalar(xor)!) // no exact matches in call to instance method 'append'return Data(result.unicodeScalars.map { $0.value }.map { Int($0)! }) // missing argument label 'exactly:' in callreturn Data(result.unicodeScalars.map { $0.value }.map { Int($0)! }) // no exact matches in call to initializerfor char in data.map { Int($0)! } { // missing argument label 'exactly:' in calllet keyChar = key.unicodeScalars[keyIndex] // no exact matches in call to subscriptprotocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
var result = Data()
for (i, c) in string.enumerated() {
let keyIndex = i % key.count
let keyValue = Int(key[keyIndex])
let charValue = Int(c)
let xorResult = keyValue ^ charValue
result.append(UInt8(xorResult))
}
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
var result = ""
for (i, c) in data.enumerated() {
let keyIndex = i % key.count
let keyValue = Int(key[keyIndex])
let xorResult = c ^ keyValue
result += String(Int(xorResult))
}
return result
}
}user
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.
assistant
```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 result = Data()
for (i, c) in string.enumerated() {
let keyIndex = i % key.count
let keyValue = Int(key[keyIndex])
let charValue = Int(c)
let xorResult = keyValue ^ charValue
result.append(UInt8(xorResult))
}
return result
}
func decrypt(_ data: Data, _ key: String) -> String {
var result = ""
for (i, c) in data.enumerated() {
let keyIndex = i % key.count
let keyValue = Int(key[keyIndex])
let xorResult = c ^ keyValue
result += String(Int(xorResult))
}
return result
}
}
let encryptor = Encryptor()
let encrypted = encryptor.encrypt("Hello, World!", "Swift")
print("Encrypted: \(encrypted)")
let decrypted = encryptor.decrypt(encrypted, "Swift")
print("Decrypted: \(decrypted)")
```let keyValue = Int(key[keyIndex]) // no exact matches in call to subscriptlet charValue = Int(c) // no exact matches in call to initializerlet keyValue = Int(key[keyIndex]) // no exact matches in call to subscriptprotocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
var keyIndex = 0
var encryptedData = Data()
for character in string {
let keyValue = Int(String(key[keyIndex]))
let stringValue = Int(String(character))
let xorResult = String(keyValue ^ stringValue)
let byte = UInt8(xorResult)!
encryptedData.append(byte)
keyIndex = (keyIndex + 1) % key.count
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var keyIndex = 0
var decryptedString = ""
for byte in data {
let keyValue = Int(String(key[keyIndex]))
let byteValue = Int(String(byte))!
let xorResult = String(keyValue ^ byteValue)
decryptedString.append(Character(xorResult))
keyIndex = (keyIndex + 1) % key.count
}
return decryptedString
}
}user
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.
assistant
```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 keyIndex = 0
var encryptedData = Data()
for character in string {
let keyValue = Int(String(key[keyIndex]))
let stringValue = Int(String(character))
let xorResult = String(keyValue ^ stringValue)
let byte = UInt8(xorResult)!
encryptedData.append(byte)
keyIndex = (keyIndex + 1) % key.count
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var keyIndex = 0
var decryptedString = ""
for byte in data {
let keyValue = Int(String(key[keyIndex]))
let byteValue = Int(String(byte))!
let xorResult = String(keyValue ^ byteValue)
decryptedString.append(Character(xorResult))
keyIndex = (keyIndex + 1) % key.count
}
return decryptedString
}
}
```let keyValue = Int(String(key[keyIndex])) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.let xorResult = String(keyValue ^ stringValue) // binary operator '^' cannot be applied to two 'Int?' operandslet keyValue = Int(String(key[keyIndex])) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.let xorResult = String(keyValue ^ byteValue) // value of optional type 'Int?' must be unwrapped to a value of type 'Int'protocol EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data
func decrypt(_ data: Data, _ key: String) -> String
}
class Encryptor: EncryptorProtocol {
func encrypt(_ string: String, _ key: String) -> Data {
var encryptedData = Data(string.utf8)
let keyData = Data(key.utf8)
for i in 0..<encryptedData.count {
let keyIndex = i % keyData.count
encryptedData[i].binaryValue ^= keyData[keyIndex].binaryValue
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedData = data
let keyData = Data(key.utf8)
for i in 0..<decryptedData.count {
let keyIndex = i % keyData.count
let originalBit = Int(String(decryptedData[i].binaryValue))
let keyBit = Int(String(keyData[keyIndex].binaryValue))
let finalBit = originalBit ^ keyBit
decryptedData[i].binaryValue = String(finalBit)
}
return String(decryptedData)
}
}user
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.
assistant
```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(string.utf8)
let keyData = Data(key.utf8)
for i in 0..<encryptedData.count {
let keyIndex = i % keyData.count
encryptedData[i].binaryValue ^= keyData[keyIndex].binaryValue
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedData = data
let keyData = Data(key.utf8)
for i in 0..<decryptedData.count {
let keyIndex = i % keyData.count
let originalBit = Int(String(decryptedData[i].binaryValue))
let keyBit = Int(String(keyData[keyIndex].binaryValue))
let finalBit = originalBit ^ keyBit
decryptedData[i].binaryValue = String(finalBit)
}
return String(decryptedData)
}
}
```encryptedData[i].binaryValue ^= keyData[keyIndex].binaryValue // value of type 'UInt8' has no member 'binaryValue'encryptedData[i].binaryValue ^= keyData[keyIndex].binaryValue // value of type 'UInt8' has no member 'binaryValue'let originalBit = Int(String(decryptedData[i].binaryValue)) // value of type 'UInt8' has no member 'binaryValue'let keyBit = Int(String(keyData[keyIndex].binaryValue)) // value of type 'UInt8' has no member 'binaryValue'decryptedData[i].binaryValue = String(finalBit) // value of type 'UInt8' has no member 'binaryValue'return String(decryptedData) // no exact matches in call to initializerprotocol 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 (index, character) in string.enumerated() {
let keyIndex = key.index(key.startIndex, offsetBy: index % key.count)
let keyCharacter = key[keyIndex]
let xorResult = character.asciiValue! ^ keyCharacter.asciiValue!
let newCharacter = Character(Unicode.Scalar(xorResult))
encryptedData.append(newCharacter.utf8)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedString = ""
for (index, dataCharacter) in data.enumerated() {
let keyIndex = key.index(key.startIndex, offsetBy: index % key.count)
let keyCharacter = key[keyIndex]
let xorResult = dataCharacter.utf8.value ^ keyCharacter.asciiValue!
let newCharacter = Character(Unicode.Scalar(xorResult))
decryptedString.append(newCharacter)
}
return decryptedString
}
}user
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.
assistant
```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 (index, character) in string.enumerated() {
let keyIndex = key.index(key.startIndex, offsetBy: index % key.count)
let keyCharacter = key[keyIndex]
let xorResult = character.asciiValue! ^ keyCharacter.asciiValue!
let newCharacter = Character(Unicode.Scalar(xorResult))
encryptedData.append(newCharacter.utf8)
}
return encryptedData
}
func decrypt(_ data: Data, _ key: String) -> String {
var decryptedString = ""
for (index, dataCharacter) in data.enumerated() {
let keyIndex = key.index(key.startIndex, offsetBy: index % key.count)
let keyCharacter = key[keyIndex]
let xorResult = dataCharacter.utf8.value ^ keyCharacter.asciiValue!
let newCharacter = Character(Unicode.Scalar(xorResult))
decryptedString.append(newCharacter)
}
return decryptedString
}
}
```encryptedData.append(newCharacter.utf8) // no exact matches in call to instance method 'append'let xorResult = dataCharacter.utf8.value ^ keyCharacter.asciiValue! // value of type 'Data.Element' (aka 'UInt8') has no member '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 {
var data = Data(string.utf8)
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
data[i].withExclusiveOR(keyData[keyIndex])
}
return data
}
func decrypt(_ data: Data, _ key: String) -> String {
var data = data
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
data[i].withExclusiveOR(~keyData[keyIndex])
}
return String(data)
}
}user
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.
assistant
```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 data = Data(string.utf8)
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
data[i].withExclusiveOR(keyData[keyIndex])
}
return data
}
func decrypt(_ data: Data, _ key: String) -> String {
var data = data
let keyData = Data(key.utf8)
let keyLength = keyData.count
for i in 0..<data.count {
let keyIndex = i % keyLength
data[i].withExclusiveOR(~keyData[keyIndex])
}
return String(data)
}
}
let encryptor = Encryptor()
let encrypted = encryptor.encrypt("Hello, World!", "key")
let decrypted = encryptor.decrypt(encrypted, "key")
print("Encrypted: \(encrypted)")
print("Decrypted: \(decrypted)")
```data[i].withExclusiveOR(keyData[keyIndex]) // value of type 'UInt8' has no member 'withExclusiveOR'data[i].withExclusiveOR(~keyData[keyIndex]) // value of type 'UInt8' has no member 'withExclusiveOR'return String(data) // no exact matches in call to initializerprotocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var remainingRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.remainingRequests = maxRequests
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
if let lastRequestTime = self.lastRequestTime, let now = Date(), now.timeIntervalSince(lastRequestTime) < timeInterval {
remainingRequests -= 1
return remainingRequests > 0
} else {
remainingRequests = maxRequests
self.lastRequestTime = now
return true
}
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var remainingRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.remainingRequests = maxRequests
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
if let lastRequestTime = self.lastRequestTime, let now = Date(), now.timeIntervalSince(lastRequestTime) < timeInterval {
remainingRequests -= 1
return remainingRequests > 0
} else {
remainingRequests = maxRequests
self.lastRequestTime = now
return true
}
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'if let lastRequestTime = self.lastRequestTime, let now = Date(), now.timeIntervalSince(lastRequestTime) < timeInterval { // initializer for conditional binding must have Optional type, not 'Date'self.lastRequestTime = now // cannot find 'now' in scopeThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var remainingRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.remainingRequests = maxRequests
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else {
self.lastRequestTime = Date()
self.remainingRequests = maxRequests
return true
}
let timeSinceLastRequest = Date().timeIntervalSince(lastRequestTime)
if timeSinceLastRequest >= timeInterval && remainingRequests > 0 {
self.remainingRequests -= 1
self.lastRequestTime = Date()
return true
}
return false
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var remainingRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.remainingRequests = maxRequests
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else {
self.lastRequestTime = Date()
self.remainingRequests = maxRequests
return true
}
let timeSinceLastRequest = Date().timeIntervalSince(lastRequestTime)
if timeSinceLastRequest >= timeInterval && remainingRequests > 0 {
self.remainingRequests -= 1
self.lastRequestTime = Date()
return true
}
return false
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var requestsCount: Int = 0
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = self.lastRequestTime, let now = Date(), now.timeIntervalSince(lastRequestTime) < self.timeInterval {
self.requestsCount += 1
return self.requestsCount <= self.maxRequests
} else {
self.lastRequestTime = now
self.requestsCount = 1
return true
}
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var requestsCount: Int = 0
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = self.lastRequestTime, let now = Date(), now.timeIntervalSince(lastRequestTime) < self.timeInterval {
self.requestsCount += 1
return self.requestsCount <= self.maxRequests
} else {
self.lastRequestTime = now
self.requestsCount = 1
return true
}
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'if let lastRequestTime = self.lastRequestTime, let now = Date(), now.timeIntervalSince(lastRequestTime) < self.timeInterval { // initializer for conditional binding must have Optional type, not 'Date'self.lastRequestTime = now // cannot find 'now' in scopeThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var requestsMade: Int = 0
private var lastRequestTime: Date?
private var maxRequests: Int
private var timeInterval: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else {
self.lastRequestTime = Date()
self.requestsMade += 1
return true
}
let timeSinceLastRequest = Date().timeIntervalSince(lastRequestTime)
if timeSinceLastRequest > timeInterval && requestsMade < maxRequests {
self.lastRequestTime = Date()
self.requestsMade += 1
return true
} else if timeSinceLastRequest > timeInterval && requestsMade >= maxRequests {
return false
} else {
return false
}
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var requestsMade: Int = 0
private var lastRequestTime: Date?
private var maxRequests: Int
private var timeInterval: TimeInterval
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else {
self.lastRequestTime = Date()
self.requestsMade += 1
return true
}
let timeSinceLastRequest = Date().timeIntervalSince(lastRequestTime)
if timeSinceLastRequest > timeInterval && requestsMade < maxRequests {
self.lastRequestTime = Date()
self.requestsMade += 1
return true
} else if timeSinceLastRequest > timeInterval && requestsMade >= maxRequests {
return false
} else {
return false
}
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var requestsMade: Int = 0
private var lastRequestTime: TimeInterval = 0
private var maxRequests: Int
private var timeInterval: TimeInterval
init(_ maxRequests: Int, _ timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if (TimeInterval(Date.timeIntervalSinceNow) - lastRequestTime) > timeInterval {
requestsMade = 0
}
if requestsMade >= maxRequests {
return false
}
requestsMade += 1
lastRequestTime = TimeInterval(Date.timeIntervalSinceNow)
return true
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var requestsMade: Int = 0
private var lastRequestTime: TimeInterval = 0
private var maxRequests: Int
private var timeInterval: TimeInterval
init(_ maxRequests: Int, _ timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if (TimeInterval(Date.timeIntervalSinceNow) - lastRequestTime) > timeInterval {
requestsMade = 0
}
if requestsMade >= maxRequests {
return false
}
requestsMade += 1
lastRequestTime = TimeInterval(Date.timeIntervalSinceNow)
return true
}
}
```init(_ maxRequests: Int, _ timeInterval: TimeInterval) { // initializer 'init(_:_:)' has different argument labels from those required by protocol 'RateLimiterProtocol' ('init(maxRequests:timeInterval:)')init(_ maxRequests: Int, _ timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'if (TimeInterval(Date.timeIntervalSinceNow) - lastRequestTime) > timeInterval { // instance member 'timeIntervalSinceNow' cannot be used on type 'Date'; did you mean to use a value of this type instead?lastRequestTime = TimeInterval(Date.timeIntervalSinceNow) // instance member 'timeIntervalSinceNow' cannot be used on type 'Date'; did you mean to use a value of this type instead?let rateLimiter = RateLimiter(maxRequests: 3, timeInterval: 1) // extraneous argument labels 'maxRequests:timeInterval:' in callThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var remainingRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.remainingRequests = maxRequests
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else { return true }
let timeSinceLastRequest = Date().timeIntervalSince(lastRequestTime)
if timeSinceLastRequest < self.timeInterval {
self.remainingRequests -= 1
return self.remainingRequests > 0
} else {
self.remainingRequests = self.maxRequests
self.lastRequestTime = Date()
return true
}
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var remainingRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.remainingRequests = maxRequests
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else { return true }
let timeSinceLastRequest = Date().timeIntervalSince(lastRequestTime)
if timeSinceLastRequest < self.timeInterval {
self.remainingRequests -= 1
return self.remainingRequests > 0
} else {
self.remainingRequests = self.maxRequests
self.lastRequestTime = Date()
return true
}
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var remainingRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.remainingRequests = maxRequests
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else {
self.lastRequestTime = Date()
self.remainingRequests = maxRequests
return true
}
let timeSinceLastRequest = Date().timeIntervalSince(lastRequestTime)
if timeSinceLastRequest >= timeInterval && remainingRequests > 0 {
self.remainingRequests -= 1
self.lastRequestTime = Date()
return true
}
return false
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var remainingRequests: Int
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
self.remainingRequests = maxRequests
self.lastRequestTime = Date()
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else {
self.lastRequestTime = Date()
self.remainingRequests = maxRequests
return true
}
let timeSinceLastRequest = Date().timeIntervalSince(lastRequestTime)
if timeSinceLastRequest >= timeInterval && remainingRequests > 0 {
self.remainingRequests -= 1
self.lastRequestTime = Date()
return true
}
return false
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var requestsCount: Int = 0
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else {
self.lastRequestTime = Date()
self.requestsCount += 1
return true
}
let elapsedTime = Date().timeIntervalSince(lastRequestTime)
if elapsedTime >= timeInterval && requestsCount < maxRequests {
self.lastRequestTime = Date()
self.requestsCount += 1
return true
}
return false
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var requestsCount: Int = 0
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime else {
self.lastRequestTime = Date()
self.requestsCount += 1
return true
}
let elapsedTime = Date().timeIntervalSince(lastRequestTime)
if elapsedTime >= timeInterval && requestsCount < maxRequests {
self.lastRequestTime = Date()
self.requestsCount += 1
return true
}
return false
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var requestsMade: Int = 0
private var lastRequestTime: Date?
private var maxRequests: Int
private var timeInterval: TimeInterval
init(_ maxRequests: Int, _ timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime, let now = Date() else {
self.lastRequestTime = now
self.requestsMade += 1
return true
}
let timeSinceLastRequest = now.timeIntervalSince(lastRequestTime)
if timeSinceLastRequest > timeInterval && requestsMade < maxRequests {
self.lastRequestTime = now
self.requestsMade += 1
return true
} else if timeSinceLastRequest <= timeInterval && requestsMade < maxRequests {
return true
}
return false
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var requestsMade: Int = 0
private var lastRequestTime: Date?
private var maxRequests: Int
private var timeInterval: TimeInterval
init(_ maxRequests: Int, _ timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
guard let lastRequestTime = self.lastRequestTime, let now = Date() else {
self.lastRequestTime = now
self.requestsMade += 1
return true
}
let timeSinceLastRequest = now.timeIntervalSince(lastRequestTime)
if timeSinceLastRequest > timeInterval && requestsMade < maxRequests {
self.lastRequestTime = now
self.requestsMade += 1
return true
} else if timeSinceLastRequest <= timeInterval && requestsMade < maxRequests {
return true
}
return false
}
}
```init(_ maxRequests: Int, _ timeInterval: TimeInterval) { // initializer 'init(_:_:)' has different argument labels from those required by protocol 'RateLimiterProtocol' ('init(maxRequests:timeInterval:)')init(_ maxRequests: Int, _ timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'guard let lastRequestTime = self.lastRequestTime, let now = Date() else { // initializer for conditional binding must have Optional type, not 'Date'self.lastRequestTime = now // cannot find 'now' in scopelet rateLimiter = RateLimiter(maxRequests: 3, timeInterval: 1) // extraneous argument labels 'maxRequests:timeInterval:' in callThread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var requestsCount: Int = 0
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = self.lastRequestTime,
let elapsedTime = Date().timeIntervalSince(lastRequestTime),
elapsedTime < timeInterval {
requestsCount += 1
return requestsCount <= maxRequests
} else {
self.lastRequestTime = Date()
requestsCount = 1
return true
}
}
}user
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.
assistant
```swift
protocol RateLimiterProtocol {
init(maxRequests: Int, timeInterval: TimeInterval)
func allowRequest() -> Bool
}
class RateLimiter: RateLimiterProtocol {
private var maxRequests: Int
private var timeInterval: TimeInterval
private var lastRequestTime: Date?
private var requestsCount: Int = 0
init(maxRequests: Int, timeInterval: TimeInterval) {
self.maxRequests = maxRequests
self.timeInterval = timeInterval
}
func allowRequest() -> Bool {
if let lastRequestTime = self.lastRequestTime,
let elapsedTime = Date().timeIntervalSince(lastRequestTime),
elapsedTime < timeInterval {
requestsCount += 1
return requestsCount <= maxRequests
} else {
self.lastRequestTime = Date()
requestsCount = 1
return true
}
}
}
```init(maxRequests: Int, timeInterval: TimeInterval) { // initializer requirement 'init(maxRequests:timeInterval:)' can only be satisfied by a 'required' initializer in non-final class 'RateLimiter'let elapsedTime = Date().timeIntervalSince(lastRequestTime), // initializer for conditional binding must have Optional type, not 'TimeInterval' (aka 'Double')Thread.sleep(forTimeInterval: 1) // class method 'sleep' is unavailable from asynchronous contexts; Use Task.sleep(until:clock:) instead.; this is an error in Swift 6protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private var lock = NSLock()
init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let value = counter
lock.unlock()
return value
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private var lock = NSLock()
init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let value = counter
lock.unlock()
return value
}
}
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Incrementer") {
while true {
Thread.yield()
counter.increment()
}
}.join()
Thread(identifier: "Reader") {
while true {
Thread.yield()
print("Current value: \(counter.currentValue())")
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
let newValue = value + 1
self.value = newValue
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
let newValue = value + 1
self.value = newValue
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Incrementer") {
while true {
Thread.yield()
counter.increment()
}
}.join()
Thread(identifier: "Reader") {
while true {
Thread.yield()
print("Current value: \(counter.currentValue())")
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private var lock = NSLock()
init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = counter
lock.unlock()
return currentValue
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private var lock = NSLock()
init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = counter
lock.unlock()
return currentValue
}
}
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Thread1") {
while true {
counter.increment()
print("Thread1: Current value is \(counter.currentValue())")
sleep(1)
}
}.join()
Thread(identifier: "Thread2") {
while true {
counter.increment()
print("Thread2: Current value is \(counter.currentValue())")
sleep(1)
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
let newValue = value + 1
self.value = newValue
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
let newValue = value + 1
self.value = newValue
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}
// Usage
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Thread1") {
while true {
counter.increment()
print("Thread1: Current value is \(counter.currentValue())")
Thread.sleepForTimeInterval(1)
}
}.join()
Thread(identifier: "Thread2") {
while true {
counter.increment()
print("Thread2: Current value is \(counter.currentValue())")
Thread.sleepForTimeInterval(1)
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
let newValue = value + 1
self.value = newValue
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
let newValue = value + 1
self.value = newValue
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
let newValue = self.value + 1
self.value = newValue
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
let newValue = self.value + 1
self.value = newValue
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Incrementer") {
while true {
Thread.yield()
counter.increment()
}
}.join()
Thread(identifier: "Reader") {
while true {
Thread.yield()
print("Current value: \(counter.currentValue())")
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Incrementer") {
while true {
counter.increment()
print("Incremented to: \(counter.currentValue())")
sleep(1)
}
}.join()
Thread(identifier: "Reader") {
while true {
print("Current value: \(counter.currentValue())")
sleep(1)
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}
// Usage
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Thread1") {
while true {
counter.increment()
print("Thread1: \(counter.currentValue())")
Thread.sleepForTimeInterval(1)
}
}.join()
Thread(identifier: "Thread2") {
while true {
print("Thread2: \(counter.currentValue())")
Thread.sleepForTimeInterval(1)
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var value: Int
private var lock = NSLock()
init(value: Int) {
self.value = value
}
func increment() {
lock.lock()
value += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let currentValue = self.value
lock.unlock()
return currentValue
}
}
// Usage
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Thread1") {
while true {
counter.increment()
print("Thread1: \(counter.currentValue())")
sleep(1)
}
}.join()
Thread(identifier: "Thread2") {
while true {
print("Thread2: \(counter.currentValue())")
sleep(1)
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private var lock = NSLock()
init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let value = counter
lock.unlock()
return value
}
}user
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.
assistant
```swift
protocol ThreadSafeCounterProtocol {
init(value: Int)
func increment()
func currentValue() -> Int
}
class ThreadSafeCounter: ThreadSafeCounterProtocol {
private var counter: Int
private var lock = NSLock()
init(value: Int) {
self.counter = value
}
func increment() {
lock.lock()
counter += 1
lock.unlock()
}
func currentValue() -> Int {
lock.lock()
let value = counter
lock.unlock()
return value
}
}
let counter = ThreadSafeCounter(value: 0)
Thread(identifier: "Incrementer") {
while true {
Thread.yield()
counter.increment()
}
}.join()
Thread(identifier: "Reader") {
while true {
Thread.yield()
print("Current value: \(counter.currentValue())")
}
}.join()
```init(value: Int) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ThreadSafeCounter'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let doubled = pipeline.pipe { value in
return value * 2
}
let squared = doubled.pipe { value in
return value * value
}
let result = squared.execute()
print(result) // Output: 144
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let doubled = pipeline.pipe { value in
return value * 2
}
let squared = doubled.pipe { value in
return value * value
}
let result = squared.execute()
print(result) // Output: 144
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let doubled = pipeline.pipe { value in
return value * 2
}
let squared = doubled.pipe { value in
return value * value
}
let result = squared.execute()
print(result) // Output: 144
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [(Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [(Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let doubled = pipeline.pipe { value in
return value * 2
}
let cubed = doubled.pipe { value in
return value * 3
}
let result = cubed.execute()
print(result) // Output: 3
```let pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'self.transforms.append(transform) // cannot convert value of type '(Output) -> U' to expected argument type '(Output) -> Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let result = pipeline
.pipe { $0 * 2 }
.pipe { $0 + 3 }
.execute()
print(result) // Output: 8
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let result = pipeline
.pipe { $0 * 2 }
.pipe { $0 * 3 }
.execute()
print(result) // Output: 64
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
struct TransformedValue: PipelineProtocol {
let value: Int
init(value: Int) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Int) -> U) -> Pipeline<U> {
return Pipeline(value: transform(self.value))
}
func execute() -> Int {
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
struct TransformedValue: PipelineProtocol {
let value: Int
init(value: Int) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Int) -> U) -> Pipeline<U> {
return Pipeline(value: transform(self.value))
}
func execute() -> Int {
return self.value
}
}
let pipeline = TransformedValue(value: 10)
let result = pipeline.pipe { $0 * 2 }.pipe { $0 + 3 }.execute()
print(result) // Output: 15
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let result = pipeline
.pipe { $0 * 2 }
.pipe { $0 + 3 }
.execute()
print(result) // Output: 8
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let pipelineWithDouble = pipeline.pipe { value in
return Double(value)
}
let pipelineWithSquare = pipelineWithDouble.pipe { value in
return value * value
}
let result = pipelineWithSquare.execute()
print(result) // Output: 144
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}user
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.
assistant
```swift
protocol PipelineProtocol {
associatedtype Output
init(value: Output)
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U>
func execute() -> Output
}
class Pipeline<Output> {
private var value: Output
private var transforms: [@escaping (Output) -> Output] = []
init(value: Output) {
self.value = value
}
func pipe<U>(_ transform: @escaping (Output) -> U) -> Pipeline<U> {
let pipeline = Pipeline(value: transform(self.value))
self.transforms.append(transform)
return pipeline
}
func execute() -> Output {
self.transforms.forEach { transform in
self.value = transform(self.value)
}
return self.value
}
}
// Usage
let pipeline = Pipeline(value: 1)
let result = pipeline
.pipe { $0 * 2 }
.pipe { $0 + 3 }
.execute()
print(result) // Output: 8
```private var transforms: [@escaping (Output) -> Output] = [] // @escaping attribute may only be used in function parameter positionlet pipeline = Pipeline(value: transform(self.value)) // cannot convert value of type 'U' to expected argument type 'Output'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(value)
return value
}
private func didChangeValue(_ newValue: Value) {
for observer in observers {
observer(newValue)
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(value)
return value
}
private func didChangeValue(_ newValue: Value) {
for observer in observers {
observer(newValue)
}
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'var value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
private(set) var value: Value
private var observers: [UUID: @escaping (Value) -> Void] = [:]
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```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(set) var value: Value
private var observers: [UUID: @escaping (Value) -> Void] = [:]
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
}
// Usage
var observableProperty = ObservableProperty<Int>(value: 0)
let observer1 = observableProperty.subscribe { value in
print("Observer 1: \(value)")
}
let observer2 = observableProperty.subscribe { value in
print("Observer 2: \(value)")
}
observableProperty.value = 10
observableProperty.unsubscribe(observer1)
observableProperty.value = 20
```private(set) var value: Value // setter for property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'private var observers: [UUID: @escaping (Value) -> Void] = [:] // @escaping attribute may only be used in function parameter positioninit(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
init(_ value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
var value: Value {
didChangeValue(value)
return value
}
private func didChangeValue(_ newValue: Value) {
for observer in observers.values {
observer(newValue)
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [UUID: Observer] = [:]
private var value: Value
init(_ value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers[uuid] = observer
return uuid
}
func unsubscribe(_ observer: UUID) {
observers.removeValue(forKey: observer)
}
var value: Value {
didChangeValue(value)
return value
}
private func didChangeValue(_ newValue: Value) {
for observer in observers.values {
observer(newValue)
}
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(_ value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'init(_ value: Value) { // initializer 'init(_:)' has different argument labels from those required by protocol 'ObservablePropertyProtocol' ('init(value:)')var value: Value { // invalid redeclaration of 'value'let observable = ObservableProperty<Int>(value: 0) // extraneous argument label 'value:' in callprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: Observer) -> UUID {
observers.append(observer)
return UUID()
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuidString != observer.uuidString }
}
var value: Value {
didChange(value) { newValue in
observers.forEach { $0(newValue) }
}
}
private func didChange(_ value: BindableProperty.ObservedValue<Value>) {
value.didChange { newValue in
didChange(newValue)
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: Observer) -> UUID {
observers.append(observer)
return UUID()
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuidString != observer.uuidString }
}
var value: Value {
didChange(value) { newValue in
observers.forEach { $0(newValue) }
}
}
private func didChange(_ value: BindableProperty.ObservedValue<Value>) {
value.didChange { newValue in
didChange(newValue)
}
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'var value: Value { // invalid redeclaration of 'value'private func didChange(_ value: BindableProperty.ObservedValue<Value>) { // cannot find type 'BindableProperty' in scopeprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: Observer) -> UUID {
observers.append(observer)
return UUID()
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuidString != observer.uuidString }
}
var value: Value {
didChange.send(value)
return value
}
set {
didChange.send(newValue)
self.value = newValue
}
private final var didChange: ObservedChange<Value> = ObservedChange(subject: self)
}
class ObservedChange<Value> : ObservedObject {
private var observers: [Observer]
private var value: Value
init(subject: ObservableProperty<Value>) {
self.observers = subject.observers
self.value = subject.value
}
@objc dynamic func didChange(_ subject: ObservableProperty<Value>) {
self.value = subject.value
observers.forEach { $0(self.value) }
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: Observer) -> UUID {
observers.append(observer)
return UUID()
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuidString != observer.uuidString }
}
var value: Value {
didChange.send(value)
return value
}
set {
didChange.send(newValue)
self.value = newValue
}
private final var didChange: ObservedChange<Value> = ObservedChange(subject: self)
}
class ObservedChange<Value> : ObservedObject {
private var observers: [Observer]
private var value: Value
init(subject: ObservableProperty<Value>) {
self.observers = subject.observers
self.value = subject.value
}
@objc dynamic func didChange(_ subject: ObservableProperty<Value>) {
self.value = subject.value
observers.forEach { $0(self.value) }
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'var value: Value { // invalid redeclaration of 'value'didChange.send(value) // value of type 'ObservedChange<Value>' has no member 'send'set { // expected 'func' keyword in instance method declarationset { // expected '(' in argument list of function declarationdidChange.send(newValue) // cannot find 'newValue' in scopedidChange.send(newValue) // value of type 'ObservedChange<Value>' has no member 'send'self.value = newValue // cannot find 'newValue' in scopeprivate final var didChange: ObservedChange<Value> = ObservedChange(subject: self) // cannot find 'self' in scope; did you mean to use it in a type or extension context?class ObservedChange<Value> : ObservedObject { // cannot find type 'ObservedObject' in scopeprivate var observers: [Observer] // cannot find type 'Observer' in scope@objc dynamic func didChange(_ subject: ObservableProperty<Value>) { // method cannot be marked @objc because the type of the parameter cannot be represented in Objective-Cprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(_ value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(value)
return value
}
private func didChangeValue(_ newValue: Value) {
for observer in observers {
observer(newValue)
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(_ value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(value)
return value
}
private func didChangeValue(_ newValue: Value) {
for observer in observers {
observer(newValue)
}
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(_ value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'init(_ value: Value) { // initializer 'init(_:)' has different argument labels from those required by protocol 'ObservablePropertyProtocol' ('init(value:)')var value: Value { // invalid redeclaration of 'value'let observable = ObservableProperty<Int>(value: 0) // extraneous argument label 'value:' in callprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(from: value) { newValue in
observers.forEach { $0(newValue) }
}
return value
}
private func didChangeValue(from oldValue: Value) {
// This method will be overridden in a subclass to provide more specific notifications
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(from: value) { newValue in
observers.forEach { $0(newValue) }
}
return value
}
private func didChangeValue(from oldValue: Value) {
// This method will be overridden in a subclass to provide more specific notifications
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'var value: Value { // invalid redeclaration of 'value'didChangeValue(from: value) { newValue in // extra trailing closure passed in callprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(_ value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(value)
}
private func didChangeValue(_ newValue: Value) {
for observer in observers {
observer(newValue)
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(_ value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(value)
}
private func didChangeValue(_ newValue: Value) {
for observer in observers {
observer(newValue)
}
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(_ value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'init(_ value: Value) { // initializer 'init(_:)' has different argument labels from those required by protocol 'ObservablePropertyProtocol' ('init(value:)')var value: Value { // invalid redeclaration of 'value'didChangeValue(value) // cannot convert return expression of type '()' to return type 'Value'let observable = ObservableProperty<Int>(value: 0) // extraneous argument label 'value:' in callprotocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(self.value)
return self.value
}
private func didChangeValue(_ oldValue: Value) {
for observer in observers {
observer(oldValue)
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(self.value)
return self.value
}
private func didChangeValue(_ oldValue: Value) {
for observer in observers {
observer(oldValue)
}
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'var value: Value { // invalid redeclaration of 'value'protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(self.value)
return self.value
}
private func didChangeValue(_ oldValue: Value) {
for observer in observers {
observer(oldValue)
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Generic observable property that notifies observers of value changes.
assistant
```swift
protocol ObservablePropertyProtocol {
associatedtype Value
init(value: Value)
var value: Value { get set }
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID
func unsubscribe(_ observer: UUID)
}
class ObservableProperty<Value> : ObservablePropertyProtocol {
typealias Observer = @escaping (Value) -> Void
private var observers: [Observer] = []
private var value: Value
init(value: Value) {
self.value = value
}
func subscribe(_ observer: @escaping (Value) -> Void) -> UUID {
let uuid = UUID()
observers.append(observer)
return uuid
}
func unsubscribe(_ observer: UUID) {
observers = observers.filter { $0.uuid != observer }
}
var value: Value {
didChangeValue(self.value)
return self.value
}
private func didChangeValue(_ oldValue: Value) {
for observer in observers {
observer(oldValue)
}
}
}
```typealias Observer = @escaping (Value) -> Void // @escaping attribute may only be used in function parameter positionprivate var value: Value // property 'value' must be declared internal because it matches a requirement in internal protocol 'ObservablePropertyProtocol'init(value: Value) { // initializer requirement 'init(value:)' can only be satisfied by a 'required' initializer in non-final class 'ObservableProperty<Value>'var value: Value { // invalid redeclaration of 'value'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
}
mutating func update(to newValue: T.Value) {
self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue)
}
}
struct Point: ClampedProtocol {
var wrappedValue: Double
var range: ClosedRange<Double>
init(wrappedValue: Double, range: ClosedRange<Double>) {
self.wrappedValue = wrappedValue
self.range = range
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
}
mutating func update(to newValue: T.Value) {
self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue)
}
}
struct Point: ClampedProtocol {
var wrappedValue: Double
var range: ClosedRange<Double>
init(wrappedValue: Double, range: ClosedRange<Double>) {
self.wrappedValue = wrappedValue
self.range = range
}
}
let point = Point(wrappedValue: 5.0, range: ClosedRange(lowerBound: 0.0, upperBound: 10.0))
print(point.value) // Output: 5.0
point.update(to: 15.0)
print(point.value) // Output: 10.0
point.update(to: -5.0)
print(point.value) // Output: 0.0
```private var wrappedValue: T.Value // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Clamped' (which is internal)return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'lowerBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'lowerBound'struct Point: ClampedProtocol { // type 'Point' does not conform to protocol 'ClampedProtocol'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
let clampedValue = wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
return clampedValue
}
mutating func update(to newValue: T.Value) {
guard newValue >= range.lowerBound && newValue <= range.upperBound else {
print("New value is not within the range")
return
}
wrappedValue = newValue
}
}
struct Point: ClampedProtocol {
var wrappedValue: Double
var range: ClosedRange<Double>
init(wrappedValue: Double, range: ClosedRange<Double>) {
self.wrappedValue = wrappedValue
self.range = range
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
let clampedValue = wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
return clampedValue
}
mutating func update(to newValue: T.Value) {
guard newValue >= range.lowerBound && newValue <= range.upperBound else {
print("New value is not within the range")
return
}
wrappedValue = newValue
}
}
struct Point: ClampedProtocol {
var wrappedValue: Double
var range: ClosedRange<Double>
init(wrappedValue: Double, range: ClosedRange<Double>) {
self.wrappedValue = wrappedValue
self.range = range
}
}
var point = Point(wrappedValue: 5.0, range: ClosedRange(lowerBound: 0.0, upperBound: 10.0))
print(point.value) // Output: 5.0
point.update(to: 15.0)
print(point.value) // Output: 10.0
point.update(to: -5.0)
print(point.value) // Output: 0.0
```private var wrappedValue: T.Value // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Clamped' (which is internal)let clampedValue = wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'let clampedValue = wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'let clampedValue = wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'let clampedValue = wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'guard newValue >= range.lowerBound && newValue <= range.upperBound else { // value of type 'T.Value' has no member 'upperBound'guard newValue >= range.lowerBound && newValue <= range.upperBound else { // value of type 'T.Value' has no member 'lowerBound'struct Point: ClampedProtocol { // type 'Point' does not conform to protocol 'ClampedProtocol'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var value: T.Value
private var range: T.Value
var wrappedValue: T.Value {
return value
}
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.value = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
mutating func wrap(_ newValue: T.Value) {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
struct ClampedStruct: ClampedProtocol {
var wrappedValue: Int
var range: ClosedRange<Int>
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.wrappedValue = wrappedValue
self.range = range
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var value: T.Value
private var range: T.Value
var wrappedValue: T.Value {
return value
}
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.value = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
mutating func wrap(_ newValue: T.Value) {
if newValue < range.lowerBound {
value = range.lowerBound
} else if newValue > range.upperBound {
value = range.upperBound
} else {
value = newValue
}
}
}
struct ClampedStruct: ClampedProtocol {
var wrappedValue: Int
var range: ClosedRange<Int>
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.wrappedValue = wrappedValue
self.range = range
}
}
var clampedValue = ClampedStruct(wrappedValue: 5, range: ClosedRange(lowerBound: 0, upperBound: 10))
clampedValue.wrap(-1) // -1
clampedValue.wrap(15) // 10
clampedValue.wrap(5) // 5
```if newValue < range.lowerBound { // value of type 'T.Value' has no member 'lowerBound'value = range.lowerBound // value of type 'T.Value' has no member 'lowerBound'} else if newValue > range.upperBound { // value of type 'T.Value' has no member 'upperBound'value = range.upperBound // value of type 'T.Value' has no member 'upperBound'@Clamped(0...10) var value: Int = 0 // generic parameter 'T' could not be inferredvalue = 5 // cannot assign to value: 'value' is a get-only propertyvalue = 15 // cannot assign to value: 'value' is a get-only propertyvalue = -5 // cannot assign to value: 'value' is a get-only propertyprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
}
mutating func update(to newValue: T.Value) {
wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue)
}
}
struct Point: ClampedProtocol {
var wrappedValue: Double
var range: ClosedRange<Double>
init(wrappedValue: Double, _ range: ClosedRange<Double>) {
self.wrappedValue = wrappedValue
self.range = range
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
}
mutating func update(to newValue: T.Value) {
wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue)
}
}
struct Point: ClampedProtocol {
var wrappedValue: Double
var range: ClosedRange<Double>
init(wrappedValue: Double, _ range: ClosedRange<Double>) {
self.wrappedValue = wrappedValue
self.range = range
}
}
let point = Point(wrappedValue: 5.0, range: ClosedRange(lowerBound: 1.0, upperBound: 10.0))
print(point.value) // Output: 5.0
point.update(to: 20.0)
print(point.value) // Output: 10.0
```private var wrappedValue: T.Value // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Clamped' (which is internal)return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'lowerBound'wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'lowerBound'wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'upperBound'wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'upperBound'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: ClosedRange<T.Value>
init(wrappedValue: T, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue.wrappedValue
self.range = range
}
var value: T.Value {
return wrappedValue
}
mutating func assign(value: T.Value) {
if value < range.lowerBound {
self.wrappedValue = range.lowerBound
} else if value > range.upperBound {
self.wrappedValue = range.upperBound
} else {
self.wrappedValue = value
}
}
}
struct ClampedStruct: ClampedProtocol {
var wrappedValue: Int
let range: ClosedRange<Int>
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.wrappedValue = wrappedValue
self.range = range
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: ClosedRange<T.Value>
init(wrappedValue: T, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue.wrappedValue
self.range = range
}
var value: T.Value {
return wrappedValue
}
mutating func assign(value: T.Value) {
if value < range.lowerBound {
self.wrappedValue = range.lowerBound
} else if value > range.upperBound {
self.wrappedValue = range.upperBound
} else {
self.wrappedValue = value
}
}
}
struct ClampedStruct: ClampedProtocol {
var wrappedValue: Int
let range: ClosedRange<Int>
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.wrappedValue = wrappedValue
self.range = range
}
}
let clamped = ClampedStruct(wrappedValue: 5, range: ClosedRange(lowerBound: 1, upperBound: 10))
print(clamped.value) // Output: 5
clamped.assign(value: 15)
print(clamped.value) // Output: 10
clamped.assign(value: -5)
print(clamped.value) // Output: 1
```private var wrappedValue: T.Value // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Clamped' (which is internal)self.wrappedValue = wrappedValue.wrappedValue // value of type 'T' has no member 'wrappedValue'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
}
mutating func update(to newValue: T.Value) {
self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue)
}
}
struct Point: ClampedProtocol {
var wrappedValue: Double
let range: ClosedRange<Double>
init(wrappedValue: Double, range: ClosedRange<Double>) {
self.wrappedValue = wrappedValue
self.range = range
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
}
mutating func update(to newValue: T.Value) {
self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue)
}
}
struct Point: ClampedProtocol {
var wrappedValue: Double
let range: ClosedRange<Double>
init(wrappedValue: Double, range: ClosedRange<Double>) {
self.wrappedValue = wrappedValue
self.range = range
}
}
let point = Point(wrappedValue: 5.0, range: ClosedRange(lowerBound: 1.0, upperBound: 10.0))
print(point.value) // Output: 5.0
point.update(to: 20.0)
print(point.value) // Output: 10.0
```private var wrappedValue: T.Value // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Clamped' (which is internal)return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'lowerBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'lowerBound'struct Point: ClampedProtocol { // type 'Point' does not conform to protocol 'ClampedProtocol'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
}
mutating func update(to newValue: T.Value) {
self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue)
}
}
struct ClampedStruct: ClampedProtocol {
var wrappedValue: Int
var range: ClosedRange<Int>
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range : ClosedRange(lowerBound: range.upperBound, upperBound: range.lowerBound)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: T.Value
init(wrappedValue: T.Value, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range.lowerBound : range.upperBound
}
var value: T.Value {
return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue)
}
mutating func update(to newValue: T.Value) {
self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue)
}
}
struct ClampedStruct: ClampedProtocol {
var wrappedValue: Int
var range: ClosedRange<Int>
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.wrappedValue = wrappedValue
self.range = range.lowerBound < range.upperBound ? range : ClosedRange(lowerBound: range.upperBound, upperBound: range.lowerBound)
}
}
let clamped = ClampedStruct(wrappedValue: 5, _: ClosedRange(lowerBound: 1, upperBound: 10))
print(clamped.value) // prints 5
clamped.update(to: 15)
print(clamped.value) // prints 10
```private var wrappedValue: T.Value // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Clamped' (which is internal)return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'lowerBound'return wrappedValue < range.lowerBound ? range.lowerBound : (wrappedValue > range.upperBound ? range.upperBound : wrappedValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'upperBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'lowerBound'self.wrappedValue = newValue < range.lowerBound ? range.lowerBound : (newValue > range.upperBound ? range.upperBound : newValue) // value of type 'T.Value' has no member 'lowerBound'self.range = range.lowerBound < range.upperBound ? range : ClosedRange(lowerBound: range.upperBound, upperBound: range.lowerBound) // cannot convert value of type 'Int' to expected argument type 'Range<Int>'self.range = range.lowerBound < range.upperBound ? range : ClosedRange(lowerBound: range.upperBound, upperBound: range.lowerBound) // extra argument 'upperBound' in callprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: ClosedRange<T.Value>
init(wrappedValue: T, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var wrappedValue: T.Value {
return self.wrappedValue
}
var value: T.Value {
return self.wrappedValue
}
set(value: T.Value) {
self.wrappedValue = T(wrappedValue: value).value
}
func binding(_ binding: Binding<T.Value>) {
self.wrappedValue = T(wrappedValue: binding.transformedValue).value
}
}
struct ClampedStruct: ClampedProtocol {
var value: Int
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.value = Int(clamp(Double(wrappedValue), low: Double(range.lowerBound), high: Double(range.upperBound)))
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: ClosedRange<T.Value>
init(wrappedValue: T, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue
self.range = range
}
var wrappedValue: T.Value {
return self.wrappedValue
}
var value: T.Value {
return self.wrappedValue
}
set(value: T.Value) {
self.wrappedValue = T(wrappedValue: value).value
}
func binding(_ binding: Binding<T.Value>) {
self.wrappedValue = T(wrappedValue: binding.transformedValue).value
}
}
struct ClampedStruct: ClampedProtocol {
var value: Int
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.value = Int(clamp(Double(wrappedValue), low: Double(range.lowerBound), high: Double(range.upperBound)))
}
}
let clamped = ClampedStruct(wrappedValue: 5, range: ClosedRange(lowerBound: 0, upperBound: 10))
print(clamped.value) // Output: 5
clamped.value = 15
print(clamped.value) // Output: 10
let binding = Binding(wrappedValue: clamped.value) { $0.abs() <= 10 }
clamped.binding(binding)
print(clamped.value) // Output: 5
```struct Clamped<T: ClampedProtocol> { // property wrapper type 'Clamped' has multiple non-static properties named 'wrappedValue'self.wrappedValue = wrappedValue // cannot assign value of type 'T' to type 'T.Value'var wrappedValue: T.Value { // invalid redeclaration of 'wrappedValue'set(value: T.Value) { // expected 'func' keyword in instance method declarationself.wrappedValue = T(wrappedValue: value).value // missing argument for parameter #2 in callself.wrappedValue = T(wrappedValue: value).value // value of type 'T' has no member 'value'self.wrappedValue = T(wrappedValue: value).value // cannot assign to property: 'self' is immutablefunc binding(_ binding: Binding<T.Value>) { // cannot find type 'Binding' in scopeself.wrappedValue = T(wrappedValue: binding.transformedValue).value // cannot assign to property: 'self' is immutableself.wrappedValue = T(wrappedValue: binding.transformedValue).value // missing argument for parameter #2 in callself.wrappedValue = T(wrappedValue: binding.transformedValue).value // value of type 'T' has no member 'value'self.value = Int(clamp(Double(wrappedValue), low: Double(range.lowerBound), high: Double(range.upperBound))) // cannot find 'clamp' in scopeprotocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: ClosedRange<T.Value>
init(wrappedValue: T, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue.wrappedValue
self.range = range
}
var wrappedValue: T.Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = T.Value(clamping: newValue, aboveMinimum: range.lowerBound, belowMaximum: range.upperBound)
}
}
}
struct ClampedStruct: ClampedProtocol {
var wrappedValue: Int
let range: ClosedRange<Int>
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.wrappedValue = wrappedValue
self.range = range
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: ClosedRange<T.Value>
init(wrappedValue: T, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue.wrappedValue
self.range = range
}
var wrappedValue: T.Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = T.Value(clamping: newValue, aboveMinimum: range.lowerBound, belowMaximum: range.upperBound)
}
}
}
struct ClampedStruct: ClampedProtocol {
var wrappedValue: Int
let range: ClosedRange<Int>
init(wrappedValue: Int, _ range: ClosedRange<Int>) {
self.wrappedValue = wrappedValue
self.range = range
}
}
let clamped = ClampedStruct(wrappedValue: 5, range: ClosedRange(lowerBound: 0, upperBound: 10))
print(clamped.wrappedValue) // Output: 5
clamped.wrappedValue = 15
print(clamped.wrappedValue) // Output: 10
clamped.wrappedValue = -5
print(clamped.wrappedValue) // Output: 0
```struct Clamped<T: ClampedProtocol> { // property wrapper type 'Clamped' has multiple non-static properties named 'wrappedValue'self.wrappedValue = wrappedValue.wrappedValue // value of type 'T' has no member 'wrappedValue'var wrappedValue: T.Value { // invalid redeclaration of 'wrappedValue'self.wrappedValue = T.Value(clamping: newValue, aboveMinimum: range.lowerBound, belowMaximum: range.upperBound) // type 'T.Value' has no member 'init'protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: ClosedRange<T.Value>
init(wrappedValue: T, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue.wrappedValue
self.range = range
}
var wrappedValue: T.Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = T.Value(clamping: newValue, aboveMinimum: range.lowerBound, belowMaximum: range.upperBound)
}
}
var status: String {
if newValue < range.lowerBound {
return "Below minimum"
} else if newValue > range.upperBound {
return "Above maximum"
} else {
return "In range"
}
}
}
struct ClampedTest {
var value: Clamped<ClampedTest>
init(value: ClampedTest) {
self.value = value
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that clamps value within a specified range.
assistant
```swift
protocol ClampedProtocol {
associatedtype Value: Comparable
init(wrappedValue: Value, _ range: ClosedRange<Value>)
}
@propertyWrapper
struct Clamped<T: ClampedProtocol> {
private var wrappedValue: T.Value
private var range: ClosedRange<T.Value>
init(wrappedValue: T, _ range: ClosedRange<T.Value>) {
self.wrappedValue = wrappedValue.wrappedValue
self.range = range
}
var wrappedValue: T.Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = T.Value(clamping: newValue, aboveMinimum: range.lowerBound, belowMaximum: range.upperBound)
}
}
var status: String {
if newValue < range.lowerBound {
return "Below minimum"
} else if newValue > range.upperBound {
return "Above maximum"
} else {
return "In range"
}
}
}
struct ClampedTest {
var value: Clamped<ClampedTest>
init(value: ClampedTest) {
self.value = value
}
}
let test = ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: ClampedTest(value: Clamp(100))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))struct Clamped<T: ClampedProtocol> { // property wrapper type 'Clamped' has multiple non-static properties named 'wrappedValue'self.wrappedValue = wrappedValue.wrappedValue // value of type 'T' has no member 'wrappedValue'var wrappedValue: T.Value { // invalid redeclaration of 'wrappedValue'self.wrappedValue = T.Value(clamping: newValue, aboveMinimum: range.lowerBound, belowMaximum: range.upperBound) // type 'T.Value' has no member 'init'if newValue < range.lowerBound { // cannot find 'newValue' in scope} else if newValue > range.upperBound { // cannot find 'newValue' in scopevar value: Clamped<ClampedTest> // type 'ClampedTest' does not conform to protocol 'ClampedProtocol'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var wrappedValue: T {
self.logger(.get, self.wrappedValue)
return self.wrappedValue
}
set(value: T) {
self.wrappedValue = value
self.logger(.set, self.wrappedValue)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var wrappedValue: T {
self.logger(.get, self.wrappedValue)
return self.wrappedValue
}
set(value: T) {
self.wrappedValue = value
self.logger(.set, self.wrappedValue)
}
}
// Usage
var x = 5
var y = x
var log: [Event] = []
@Logged(wrappedValue: x, logger: { (event, value) in
log.append(event)
})
var loggedX: Int {
print("\(loggedX) accessed")
return loggedX
}
loggedX = 10
print(log)
print(loggedX)
```struct Logged<T> { // property wrapper type 'Logged' has multiple non-static properties named 'wrappedValue'private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionvar wrappedValue: T { // invalid redeclaration of 'wrappedValue'self.logger(.get, self.wrappedValue) // cannot infer contextual base in reference to member 'get'set(value: T) { // expected 'func' keyword in instance method declarationself.wrappedValue = value // cannot assign to property: 'self' is immutableself.logger(.set, self.wrappedValue) // cannot infer contextual base in reference to member 'set'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
var value: T {
return wrappedValue
}
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
mutating func observeValue(forKey key: String) {
logger(.get, wrappedValue)
}
mutating func updateValue(for key: String, to value: T) {
logger(.set, value)
self.wrappedValue = value
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
var value: T {
return wrappedValue
}
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
mutating func observeValue(forKey key: String) {
logger(.get, wrappedValue)
}
mutating func updateValue(for key: String, to value: T) {
logger(.set, value)
self.wrappedValue = value
}
}
// Usage
var x = Logged(wrappedValue: 10, logger: { (event, value) in
print("Event: \(event.rawValue), Value: \(value)")
})
x.observeValue(forKey: "\(x).wrappedValue")
x.updateValue(forKey: "\(x).wrappedValue", to: 20)
```private var wrappedValue: T // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Logged' (which is internal)private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionlogger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'logger(.set, value) // cannot infer contextual base in reference to member 'set'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
struct Point {
var x: Int
var y: Int
init(x: Logged<Int>, y: Logged<Int>) {
self.x = x.value
self.y = y.value
x.logger = { _, newValue in
print("New x value: \(newValue)")
}
y.logger = { _, newValue in
print("New y value: \(newValue)")
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
// Usage
struct Point {
var x: Int
var y: Int
init(x: Logged<Int>, y: Logged<Int>) {
self.x = x.value
self.y = y.value
x.logger = { _, newValue in
print("New x value: \(newValue)")
}
y.logger = { _, newValue in
print("New y value: \(newValue)")
}
}
}
let point = Point(x: Logged(wrappedValue: 10, logger: { _, newValue in
print("New point x value: \(newValue)")
}))
point.x = 20
point.y = 30
```private var wrappedValue: T // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Logged' (which is internal)private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionlogger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'set(value: T) { // expected 'func' keyword in instance method declarationlogger(.set, wrappedValue) // cannot infer contextual base in reference to member 'set'wrappedValue = value // cannot assign to property: 'self' is immutablex.logger = { _, newValue in // cannot infer type of closure parameter 'newValue' without a type annotationx.logger = { _, newValue in // cannot infer type of closure parameter '_' without a type annotationy.logger = { _, newValue in // cannot infer type of closure parameter '_' without a type annotationy.logger = { _, newValue in // cannot infer type of closure parameter 'newValue' without a type annotationenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
// Usage
var x = 5
var y = x
var logger: @escaping (Event, Int) -> Void = { _, value in
print("\(String(describing: value)) was accessed")
}
@Logged(wrappedValue: x, logger: logger)
var xValue = x
xValue = 10
y = xValue
logger = { _, value in
print("\(String(describing: value)) was modified")
}
xValue = 15
```private var wrappedValue: T // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Logged' (which is internal)private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionlogger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'set(value: T) { // expected 'func' keyword in instance method declarationlogger(.set, wrappedValue) // cannot infer contextual base in reference to member 'set'wrappedValue = value // cannot assign to property: 'self' is immutableenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var wrappedValue: T {
logger(.get, wrappedValue)
return wrappedValue
}
set {
logger(.set, wrappedValue)
wrappedValue = newValue
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var wrappedValue: T {
logger(.get, wrappedValue)
return wrappedValue
}
set {
logger(.set, wrappedValue)
wrappedValue = newValue
}
}
// Usage
var x = 5
var y = x
var logger: @escaping (Event, Int) -> Void = { _, value in
print("\(String(describing: value)) was accessed")
}
@Logged(wrappedValue: x, logger: logger)
var x = 10
y = x
// Output:
// 5 was accessed
// 10 was accessed
```struct Logged<T> { // property wrapper type 'Logged' has multiple non-static properties named 'wrappedValue'private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionvar wrappedValue: T { // invalid redeclaration of 'wrappedValue'logger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'set { // expected '(' in argument list of function declarationset { // expected 'func' keyword in instance method declarationlogger(.set, wrappedValue) // cannot infer contextual base in reference to member 'set'wrappedValue = newValue // cannot assign to property: 'self' is immutablewrappedValue = newValue // cannot find 'newValue' in scopeenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
get {
logger(.get, wrappedValue)
return wrappedValue
}
set {
logger(.set, newValue)
wrappedValue = newValue
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
get {
logger(.get, wrappedValue)
return wrappedValue
}
set {
logger(.set, newValue)
wrappedValue = newValue
}
}
}
// Usage
var x = 5
var logger: @escaping (Event, Int) -> Void = { (event, value) in
print("\(value) \(event.rawValue)")
}
// Logs: 5 get
x = 10
// Logs: 10 set
var y: Logged<Int> = Logged(wrappedValue: 5, logger: logger)
// Logs: 5 get
y.value = 10
// Logs: 10 set
```private var wrappedValue: T // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Logged' (which is internal)private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionlogger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'logger(.set, newValue) // cannot infer contextual base in reference to member 'set'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
struct Point {
var x: Int
var y: Int
init(x: Logged<Int>, y: Logged<Int>) {
self.x = x.value
self.y = y.value
x.logger = { _, value in
print("X: \(value)")
}
y.logger = { _, value in
print("Y: \(value)")
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
// Usage
struct Point {
var x: Int
var y: Int
init(x: Logged<Int>, y: Logged<Int>) {
self.x = x.value
self.y = y.value
x.logger = { _, value in
print("X: \(value)")
}
y.logger = { _, value in
print("Y: \(value)")
}
}
}
let point = Point(x: Logged(wrappedValue: 10, logger: { _, value in
print("X: \(value)")
}))
point.x = 20
point.y = 30
// Output:
// X: 20
// Y: 30
```private var wrappedValue: T // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Logged' (which is internal)private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionlogger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'set(value: T) { // expected 'func' keyword in instance method declarationlogger(.set, wrappedValue) // cannot infer contextual base in reference to member 'set'wrappedValue = value // cannot assign to property: 'self' is immutablex.logger = { _, value in // cannot infer type of closure parameter 'value' without a type annotationx.logger = { _, value in // cannot infer type of closure parameter '_' without a type annotationy.logger = { _, value in // cannot infer type of closure parameter 'value' without a type annotationy.logger = { _, value in // cannot infer type of closure parameter '_' without a type annotationenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
var value: T {
return wrappedValue
}
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
mutating func observe(_ observer: LoggedObserver) {
logger(.get, wrappedValue)
}
mutating func update(to newValue: T) {
logger(.set, newValue)
wrappedValue = newValue
}
}
struct Point: LoggedProtocol {
var x: Double
var y: Double
init(x: Double = 0, y: Double = 0) {
self.x = x
self.y = y
}
}
struct LoggedPoint: Logged<Point> {
init(wrappedValue: Point, logger: @escaping (Event, Double) -> Void) {
super.init(wrappedValue: wrappedValue, logger: logger)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
var value: T {
return wrappedValue
}
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
mutating func observe(_ observer: LoggedObserver) {
logger(.get, wrappedValue)
}
mutating func update(to newValue: T) {
logger(.set, newValue)
wrappedValue = newValue
}
}
struct Point: LoggedProtocol {
var x: Double
var y: Double
init(x: Double = 0, y: Double = 0) {
self.x = x
self.y = y
}
}
struct LoggedPoint: Logged<Point> {
init(wrappedValue: Point, logger: @escaping (Event, Double) -> Void) {
super.init(wrappedValue: wrappedValue, logger: logger)
}
}
let point = LoggedPoint(wrappedValue: Point(x: 1.0, y: 2.0))
point.observe { event, value in
print("Observed: \(event.rawValue), \(value)")
}
point.update(to: Point(x: 3.0, y: 4.0))
```private var wrappedValue: T // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Logged' (which is internal)private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionmutating func observe(_ observer: LoggedObserver) { // cannot find type 'LoggedObserver' in scopelogger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'logger(.set, newValue) // cannot infer contextual base in reference to member 'set'struct Point: LoggedProtocol { // type 'Point' does not conform to protocol 'LoggedProtocol'struct LoggedPoint: Logged<Point> { // inheritance from non-protocol type 'Logged<Point>'super.init(wrappedValue: wrappedValue, logger: logger) // 'super' cannot be used outside of class membersenum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
struct Point: LoggedProtocol {
var x: Int
var y: Int
init(x: Int, y: Int) {
self.x = x
self.y = y
}
init(wrappedValue: Point, logger: @escaping (Event, Point) -> Void) {
self = wrappedValue
self.logger = logger
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
// Usage
struct Point: LoggedProtocol {
var x: Int
var y: Int
init(x: Int, y: Int) {
self.x = x
self.y = y
}
init(wrappedValue: Point, logger: @escaping (Event, Point) -> Void) {
self = wrappedValue
self.logger = logger
}
}
let point = Point(x: 1, y: 2)
// Logs: get, set
print(point.x)
// Logs: set
point.x = 3
// Logs: get, set
print(point.y)
// Logs: set
point.y = 4
```private var wrappedValue: T // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Logged' (which is internal)private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionlogger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'set(value: T) { // expected 'func' keyword in instance method declarationlogger(.set, wrappedValue) // cannot infer contextual base in reference to member 'set'wrappedValue = value // cannot assign to property: 'self' is immutableself.logger = logger // value of type 'Point' has no member 'logger'enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
struct Point {
var x: Int
var y: Int
init(x: Logged<Int>, y: Logged<Int>) {
self.x = x.value
self.y = y.value
x.logger = { _, newValue in
print("New x value: \(newValue)")
}
y.logger = { _, newValue in
print("New y value: \(newValue)")
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that logs access and modification of the wrapped property.
assistant
```swift
enum Event {
case get, set
}
protocol LoggedProtocol {
associatedtype Value
init(wrappedValue: Value, logger: @escaping (Event, Value) -> Void)
}
@propertyWrapper
struct Logged<T> {
private var wrappedValue: T
private var logger: @escaping (Event, T) -> Void
init(wrappedValue: T, logger: @escaping (Event, T) -> Void) {
self.wrappedValue = wrappedValue
self.logger = logger
}
var value: T {
logger(.get, wrappedValue)
return wrappedValue
}
set(value: T) {
logger(.set, wrappedValue)
wrappedValue = value
}
}
// Usage
struct Point {
var x: Int
var y: Int
init(x: Logged<Int>, y: Logged<Int>) {
self.x = x.value
self.y = y.value
x.logger = { _, newValue in
print("New x value: \(newValue)")
}
y.logger = { _, newValue in
print("New y value: \(newValue)")
}
}
}
let point = Point(x: Logged(wrappedValue: 10, logger: { _, newValue in
print("Setting x to: \(newValue)")
}))
point.x = 20
point.y = 30
```private var wrappedValue: T // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Logged' (which is internal)private var logger: @escaping (Event, T) -> Void // @escaping attribute may only be used in function parameter positionlogger(.get, wrappedValue) // cannot infer contextual base in reference to member 'get'set(value: T) { // expected 'func' keyword in instance method declarationlogger(.set, wrappedValue) // cannot infer contextual base in reference to member 'set'wrappedValue = value // cannot assign to property: 'self' is immutablex.logger = { _, newValue in // cannot infer type of closure parameter 'newValue' without a type annotationx.logger = { _, newValue in // cannot infer type of closure parameter '_' without a type annotationy.logger = { _, newValue in // cannot infer type of closure parameter '_' without a type annotationy.logger = { _, newValue in // cannot infer type of closure parameter 'newValue' without a type annotationprotocol 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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
// Handle keyboard character select
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
// Handle keyboard delete backwards
return .success(city: "", forecast: "")
case .searchButtonPress:
// Handle search button press
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}user
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.
assistant
```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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
// Handle keyboard character select
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
// Handle keyboard delete backwards
return .success(city: "", forecast: "")
case .searchButtonPress:
// Handle search button press
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'case .keyboardCharacterSelect(let character): // immutable value 'character' was never used; consider replacing with '_' or removing itlet application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return self.handleKeyboardCharacterSelect(character: character)
case .keyboardDeleteBackwards:
return self.handleKeyboardDeleteBackwards()
case .searchButtonPress:
return self.handleSearchButtonPress()
}
}
private func handleKeyboardCharacterSelect(character: Character) -> ApplicationFeedback? {
// Implementation here
}
private func handleKeyboardDeleteBackwards() -> ApplicationFeedback? {
// Implementation here
}
private func handleSearchButtonPress() -> ApplicationFeedback? {
do {
let city = "New York"
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: "")
}
}
}user
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.
assistant
```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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return self.handleKeyboardCharacterSelect(character: character)
case .keyboardDeleteBackwards:
return self.handleKeyboardDeleteBackwards()
case .searchButtonPress:
return self.handleSearchButtonPress()
}
}
private func handleKeyboardCharacterSelect(character: Character) -> ApplicationFeedback? {
// Implementation here
}
private func handleKeyboardDeleteBackwards() -> ApplicationFeedback? {
// Implementation here
}
private func handleSearchButtonPress() -> ApplicationFeedback? {
do {
let city = "New York"
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'let application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'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
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
// Handle keyboard character select
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
// Handle keyboard delete backwards
return .success(city: "", forecast: "")
case .searchButtonPress:
// Handle search button press
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}user
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.
assistant
```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
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
// Handle keyboard character select
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
// Handle keyboard delete backwards
return .success(city: "", forecast: "")
case .searchButtonPress:
// Handle search button press
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'case .keyboardCharacterSelect(let character): // immutable value 'character' was never used; consider replacing with '_' or removing itlet application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
// Handle keyboard character select action
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
// Handle keyboard delete backwards action
return .success(city: "", forecast: "")
case .searchButtonPress:
// Handle search button press action
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}user
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.
assistant
```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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
// Handle keyboard character select action
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
// Handle keyboard delete backwards action
return .success(city: "", forecast: "")
case .searchButtonPress:
// Handle search button press action
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'case .keyboardCharacterSelect(let character): // immutable value 'character' was never used; consider replacing with '_' or removing itlet application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
return .success(city: "", forecast: "")
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}user
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.
assistant
```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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
return .success(city: "", forecast: "")
case .searchButtonPress:
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}
// Usage
let app = WeatherApplication(dependencies: ...)
// Fill search bar
app.handle(action: ...)?.map { feedback in
switch feedback {
case .success(let city, let forecast):
print("City: \(city)")
print("Forecast: \(forecast)")
case .failure(let city):
print("Failed to get forecast for \(city)")
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'case .keyboardCharacterSelect(let character): // immutable value 'character' was never used; consider replacing with '_' or removing itlet application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return self.handleKeyboardCharacterSelect(character: character)
case .keyboardDeleteBackwards:
return self.handleKeyboardDeleteBackwards()
case .searchButtonPress:
return self.handleSearchButtonPress()
}
}
private func handleKeyboardCharacterSelect(character: Character) {
// Implementation of the logic to handle the character select event
}
private func handleKeyboardDeleteBackwards() {
// Implementation of the logic to handle the delete backwards event
}
private func handleSearchButtonPress() -> ApplicationFeedback {
do {
let city = "New York"
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: "")
}
}
}user
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.
assistant
```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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return self.handleKeyboardCharacterSelect(character: character)
case .keyboardDeleteBackwards:
return self.handleKeyboardDeleteBackwards()
case .searchButtonPress:
return self.handleSearchButtonPress()
}
}
private func handleKeyboardCharacterSelect(character: Character) {
// Implementation of the logic to handle the character select event
}
private func handleKeyboardDeleteBackwards() {
// Implementation of the logic to handle the delete backwards event
}
private func handleSearchButtonPress() -> ApplicationFeedback {
do {
let city = "New York"
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'return self.handleKeyboardCharacterSelect(character: character) // cannot convert return expression of type '()' to return type 'ApplicationFeedback?'return self.handleKeyboardDeleteBackwards() // cannot convert return expression of type '()' to return type 'ApplicationFeedback?'let application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return self.handleCharacterSelect(character: character)
case .keyboardDeleteBackwards:
return self.handleDeleteBackwards()
case .searchButtonPress:
return self.handleSearchButtonPress()
}
}
private func handleCharacterSelect(character: Character) {
// Implement logic for handling character select
}
private func handleDeleteBackwards() {
// Implement logic for handling delete backwards
}
private func handleSearchButtonPress() -> ApplicationFeedback {
do {
let city = "New York" // Example city
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: "") // Handle error
}
}
}user
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.
assistant
```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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return self.handleCharacterSelect(character: character)
case .keyboardDeleteBackwards:
return self.handleDeleteBackwards()
case .searchButtonPress:
return self.handleSearchButtonPress()
}
}
private func handleCharacterSelect(character: Character) {
// Implement logic for handling character select
}
private func handleDeleteBackwards() {
// Implement logic for handling delete backwards
}
private func handleSearchButtonPress() -> ApplicationFeedback {
do {
let city = "New York" // Example city
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: "") // Handle error
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'return self.handleCharacterSelect(character: character) // cannot convert return expression of type '()' to return type 'ApplicationFeedback?'return self.handleDeleteBackwards() // cannot convert return expression of type '()' to return type 'ApplicationFeedback?'let application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
// Handle keyboard character select
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
// Handle keyboard delete backwards
return .success(city: "", forecast: "")
case .searchButtonPress:
// Handle search button press
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}user
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.
assistant
```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 var provider: WeatherProvider
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
// Handle keyboard character select
return .success(city: "", forecast: "")
case .keyboardDeleteBackwards:
// Handle keyboard delete backwards
return .success(city: "", forecast: "")
case .searchButtonPress:
// Handle search button press
do {
let forecast = try provider.forecast(for: "")
return .success(city: "", forecast: forecast)
} catch {
return .failure(city: "")
}
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'case .keyboardCharacterSelect(let character): // immutable value 'character' was never used; consider replacing with '_' or removing itlet application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'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
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return self.handleKeyboardCharacterSelect(character: character)
case .keyboardDeleteBackwards:
return self.handleKeyboardDeleteBackwards()
case .searchButtonPress:
return self.handleSearchButtonPress()
}
}
private func handleKeyboardCharacterSelect(character: Character) {
// Implement logic to handle character select action
}
private func handleKeyboardDeleteBackwards() {
// Implement logic to handle delete backwards action
}
private func handleSearchButtonPress() -> ApplicationFeedback {
do {
let city = "New York" // replace with user input
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: "") // replace with error handling
}
}
}user
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.
assistant
```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
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
return self.handleKeyboardCharacterSelect(character: character)
case .keyboardDeleteBackwards:
return self.handleKeyboardDeleteBackwards()
case .searchButtonPress:
return self.handleSearchButtonPress()
}
}
private func handleKeyboardCharacterSelect(character: Character) {
// Implement logic to handle character select action
}
private func handleKeyboardDeleteBackwards() {
// Implement logic to handle delete backwards action
}
private func handleSearchButtonPress() -> ApplicationFeedback {
do {
let city = "New York" // replace with user input
let forecast = try provider.forecast(for: city)
return .success(city: city, forecast: forecast)
} catch {
return .failure(city: "") // replace with error handling
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'return self.handleKeyboardCharacterSelect(character: character) // cannot convert return expression of type '()' to return type 'ApplicationFeedback?'return self.handleKeyboardDeleteBackwards() // cannot convert return expression of type '()' to return type 'ApplicationFeedback?'let application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'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
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
do {
let forecast = try provider.forecast(for: "New York")
return .success(city: "New York", forecast: forecast)
} catch {
return .failure(city: "New York")
}
case .keyboardDeleteBackwards:
return .success(city: "New York", forecast: "")
case .searchButtonPress:
return .success(city: "New York", forecast: "")
}
}
}user
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.
assistant
```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
init(dependencies: WeatherApplicationDependencies) {
self.provider = dependencies.provider
}
func handle(action: UserAction) -> ApplicationFeedback? {
switch action {
case .keyboardCharacterSelect(let character):
do {
let forecast = try provider.forecast(for: "New York")
return .success(city: "New York", forecast: forecast)
} catch {
return .failure(city: "New York")
}
case .keyboardDeleteBackwards:
return .success(city: "New York", forecast: "")
case .searchButtonPress:
return .success(city: "New York", forecast: "")
}
}
}
```class WeatherApplication: WeatherApplicationProtocol { // type 'WeatherApplication' does not conform to protocol 'WeatherApplicationDependencies'self.provider = dependencies.provider // value of type 'any WeatherApplicationDependencies' has no member 'provider'case .keyboardCharacterSelect(let character): // immutable value 'character' was never used; consider replacing with '_' or removing itlet application = WeatherApplication(provider: provider) // incorrect argument label in call (have 'provider:', expected 'dependencies:')let application = WeatherApplication(provider: provider) // argument type 'WeatherProviderImplementation' does not conform to expected type 'WeatherApplicationDependencies'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("K"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("y"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("i"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("v"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // cannot infer contextual base in reference to member 'searchButtonPress'XCTAssertEqual(application.handle(action: .searchButtonPress), .success(city: "Kyiv", forecast: "+28")) // type 'Equatable' has no member 'success'(0..<4).forEach { _ in _ = application.handle(action: .keyboardDeleteBackwards) } // Clear search input // cannot infer contextual base in reference to member 'keyboardDeleteBackwards'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("W"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("s"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("a"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertNil(application.handle(action: .keyboardCharacterSelect("w"))) // cannot infer contextual base in reference to member 'keyboardCharacterSelect'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // type 'Equatable' has no member 'failure'XCTAssertEqual(application.handle(action: .searchButtonPress), .failure(city: "Wsaw")) // cannot infer contextual base in reference to member 'searchButtonPress'protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double = 0.0
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1)) // simulate a delay
self._balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self._balance < amount {
return false
}
await Thread.sleep(for: .seconds(1)) // simulate a delay
self._balance -= amount
return true
}
func balance() async throws -> Double {
return self._balance
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double = 0.0
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1)) // simulate a delay
self._balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self._balance < amount {
return false
}
await Thread.sleep(for: .seconds(1)) // simulate a delay
self._balance -= amount
return true
}
func balance() async throws -> Double {
return self._balance
}
}
// Usage
let bankAccount = BankAccount(balance: 1000.0)
// Deposit
Task {
do {
print("Before deposit: \(try await bankAccount.balance())")
await bankAccount.deposit(amount: 500.0)
print("After deposit: \(try await bankAccount.balance())")
} catch {
print("Error: \(error)")
}
}
// Withdraw
Task {
do {
print("Before withdraw: \(try await bankAccount.balance())")
print("Withdrawal result: \(try await bankAccount.withdraw(amount: 200.0))")
print("After withdraw: \(try await bankAccount.balance())")
} catch {
print("Error: \(error)")
}
}
```actor BankAccount: BankAccountProtocol { // type 'BankAccount' does not conform to protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // simulate a delay // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // simulate a delay // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // simulate a delay // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // simulate a delay // reference to member 'seconds' cannot be resolved without a contextual typelet balance = await account.balance // no 'async' operations occur within 'await' expressionXCTAssertEqual(balance, 1000.0) // function produces expected type 'Double'; did you mean to call it with '()'?let finalBalance = await account.balance // no 'async' operations occur within 'await' expressionXCTAssertEqual(finalBalance, 1000.0) // function produces expected type 'Double'; did you mean to call it with '()'?protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}
// Usage
let bankAccount = BankAccount(balance: 1000.0)
// Deposit
Task {
do {
await bankAccount.deposit(amount: 500.0)
await bankAccount.getBalance()
} catch {
print("Error: \(error)")
}
}
// Withdraw
Task {
do {
if await bankAccount.withdraw(amount: 1500.0) {
await bankAccount.getBalance()
} else {
print("Insufficient balance")
}
} catch {
print("Error: \(error)")
}
}
```private var balance: Double = 0.0 // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeprint("Current balance: \(await self.balance)") // no 'async' operations occur within 'await' expressionprotocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1)) // simulate delay
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance < amount {
return false
}
await Thread.sleep(for: .seconds(1)) // simulate delay
self.balance -= amount
return true
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1)) // simulate delay
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
if self.balance < amount {
return false
}
await Thread.sleep(for: .seconds(1)) // simulate delay
self.balance -= amount
return true
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}
// Usage
let bankAccount = BankAccount(balance: 1000.0)
// Deposit
Task {
let result = await bankAccount.deposit(amount: 500.0)
print("Deposit result: \(result)")
await bankAccount.getBalance()
}
// Withdraw
Task {
let result = await bankAccount.withdraw(amount: 1500.0)
print("Withdraw result: \(result)")
await bankAccount.getBalance()
}
```private var balance: Double = 0.0 // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // simulate delay // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // simulate delay // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // simulate delay // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // simulate delay // reference to member 'seconds' cannot be resolved without a contextual typeprint("Current balance: \(await self.balance)") // no 'async' operations occur within 'await' expressionprotocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if _balance >= amount {
_balance -= amount
return true
}
return false
}
func balance() async throws -> Double {
return _balance
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if _balance >= amount {
_balance -= amount
return true
}
return false
}
func balance() async throws -> Double {
return _balance
}
}
// Usage
let bankAccount = BankAccount(balance: 100.0)
// Deposit
Task {
do {
try await bankAccount.deposit(amount: 50.0)
print("Deposit completed. Current balance: \(try await bankAccount.balance())")
} catch {
print("Deposit failed: \(error)")
}
}
// Withdraw
Task {
do {
if try await bankAccount.withdraw(amount: 150.0) {
print("Withdraw completed. Current balance: \(try await bankAccount.balance())")
} else {
print("Insufficient balance. Current balance: \(try await bankAccount.balance())")
}
} catch {
print("Withdraw failed: \(error)")
}
}
```actor BankAccount: BankAccountProtocol { // type 'BankAccount' does not conform to protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typelet balance = await account.balance // no 'async' operations occur within 'await' expressionXCTAssertEqual(balance, 1000.0) // function produces expected type 'Double'; did you mean to call it with '()'?let finalBalance = await account.balance // no 'async' operations occur within 'await' expressionXCTAssertEqual(finalBalance, 1000.0) // function produces expected type 'Double'; did you mean to call it with '()'?protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if _balance >= amount {
_balance -= amount
return true
}
return false
}
func balance() async throws -> Double {
return _balance
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
_balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if _balance >= amount {
_balance -= amount
return true
}
return false
}
func balance() async throws -> Double {
return _balance
}
}
```actor BankAccount: BankAccountProtocol { // type 'BankAccount' does not conform to protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typelet balance = await account.balance // no 'async' operations occur within 'await' expressionXCTAssertEqual(balance, 1000.0) // function produces expected type 'Double'; did you mean to call it with '()'?let finalBalance = await account.balance // no 'async' operations occur within 'await' expressionXCTAssertEqual(finalBalance, 1000.0) // function produces expected type 'Double'; did you mean to call it with '()'?protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
required init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1)) // simulate a delay
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1)) // simulate a delay
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
required init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1)) // simulate a delay
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1)) // simulate a delay
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}
// Usage
let bankAccount = BankAccount(balance: 1000.0)
// Deposit
Task {
do {
await bankAccount.deposit(amount: 500.0)
await bankAccount.getBalance()
} catch {
print("Error: \(error)")
}
}
// Withdraw
Task {
do {
if await bankAccount.withdraw(amount: 1500.0) {
await bankAccount.getBalance()
} else {
print("Insufficient balance")
}
} catch {
print("Error: \(error)")
}
}
```private var balance: Double = 0.0 // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'required init(balance: Double) { // 'required' initializer in non-class type 'BankAccount'await Thread.sleep(for: .seconds(1)) // simulate a delay // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // simulate a delay // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // simulate a delay // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // simulate a delay // no exact matches in call to class method 'sleep'print("Current balance: \(await self.balance)") // no 'async' operations occur within 'await' expressionprotocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1)) // simulate a delay
balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1)) // simulate a delay
if balance >= amount {
balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1)) // simulate a delay
balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1)) // simulate a delay
if balance >= amount {
balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}
// Usage
let bankAccount = BankAccount(balance: 100.0)
// Deposit
Task {
do {
await bankAccount.deposit(amount: 50.0)
await bankAccount.getBalance()
} catch {
print("Error: \(error)")
}
}
// Withdraw
Task {
do {
if await bankAccount.withdraw(amount: 100.0) {
await bankAccount.getBalance()
} else {
print("Insufficient balance")
}
} catch {
print("Error: \(error)")
}
}
```private var balance: Double = 0.0 // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // simulate a delay // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // simulate a delay // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // simulate a delay // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // simulate a delay // no exact matches in call to class method 'sleep'print("Current balance: \(await self.balance)") // no 'async' operations occur within 'await' expressionprotocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double = 0
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
self._balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if self._balance >= amount {
self._balance -= amount
return true
}
return false
}
func balance() async throws -> Double {
return self._balance
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var _balance: Double = 0
init(balance: Double) {
self._balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
self._balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if self._balance >= amount {
self._balance -= amount
return true
}
return false
}
func balance() async throws -> Double {
return self._balance
}
}
do {
let bankAccount = BankAccount(balance: 1000)
// Deposit
try bankAccount.deposit(amount: 500)
print("After deposit, balance: \(try await bankAccount.balance())")
// Withdraw
let success = try await bankAccount.withdraw(amount: 1000)
print("After withdrawal, balance: \(try await bankAccount.balance()), success: \(success)")
} catch {
print("Error: \(error)")
}
```actor BankAccount: BankAccountProtocol { // type 'BankAccount' does not conform to protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typelet balance = await account.balance // no 'async' operations occur within 'await' expressionXCTAssertEqual(balance, 1000.0) // function produces expected type 'Double'; did you mean to call it with '()'?let finalBalance = await account.balance // no 'async' operations occur within 'await' expressionXCTAssertEqual(finalBalance, 1000.0) // function produces expected type 'Double'; did you mean to call it with '()'?protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}
// Usage
let bankAccount = BankAccount(balance: 1000.0)
// Deposit
Task {
do {
await bankAccount.deposit(amount: 500.0)
await bankAccount.getBalance()
} catch {
print("Error: \(error)")
}
}
// Withdraw
Task {
do {
if await bankAccount.withdraw(amount: 1500.0) {
await bankAccount.getBalance()
} else {
print("Insufficient balance")
}
} catch {
print("Error: \(error)")
}
}
```private var balance: Double = 0.0 // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeprint("Current balance: \(await self.balance)") // no 'async' operations occur within 'await' expressionprotocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Thread-safe bank account class using an actor that allows asynchronous deposits and withdrawals, ensuring that the account balance remains consistent and transactions are atomic.
assistant
```swift
protocol BankAccountProtocol {
init(balance: Double)
var balance: Double { get async }
func deposit(amount: Double) async
func withdraw(amount: Double) async -> Bool
}
actor BankAccount: BankAccountProtocol {
private var balance: Double = 0.0
init(balance: Double) {
self.balance = balance
}
func deposit(amount: Double) async {
await Thread.sleep(for: .seconds(1))
self.balance += amount
}
func withdraw(amount: Double) async -> Bool {
await Thread.sleep(for: .seconds(1))
if self.balance >= amount {
self.balance -= amount
return true
}
return false
}
func getBalance() async {
print("Current balance: \(await self.balance)")
}
}
// Usage
let bankAccount = BankAccount(balance: 1000.0)
// Deposit
Task {
do {
await bankAccount.deposit(amount: 500.0)
await bankAccount.getBalance()
} catch {
print("Error: \(error)")
}
}
// Withdraw
Task {
do {
if await bankAccount.withdraw(amount: 600.0) {
await bankAccount.getBalance()
} else {
print("Insufficient balance")
}
} catch {
print("Error: \(error)")
}
}
```private var balance: Double = 0.0 // property 'balance' must be declared internal because it matches a requirement in internal protocol 'BankAccountProtocol'await Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeawait Thread.sleep(for: .seconds(1)) // no exact matches in call to class method 'sleep'await Thread.sleep(for: .seconds(1)) // reference to member 'seconds' cannot be resolved without a contextual typeprint("Current balance: \(await self.balance)") // no 'async' operations occur within 'await' expressionprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
}
var wrappedValue: Value {
self.wrappedValue
}
var computedValue: Value {
if let conditionValue = condition() {
if conditionValue != computedValue {
computedValue = self.wrappedValue
}
}
return computedValue
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
}
var wrappedValue: Value {
self.wrappedValue
}
var computedValue: Value {
if let conditionValue = condition() {
if conditionValue != computedValue {
computedValue = self.wrappedValue
}
}
return computedValue
}
}
// Usage
var value = 0
var condition = false
@Cached(wrappedValue: { value }, condition: { condition })
var cachedValue: Int {
return value
}
// Changing value or condition will recompute cachedValue
value = 10
print(cachedValue) // 0
condition = true
print(cachedValue) // 10
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) { // initializer 'init(_:_:)' has different argument labels from those required by protocol 'CachedProperty' ('init(wrappedValue:condition:)')var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'var computedValue: Value { // invalid redeclaration of 'computedValue'if let conditionValue = condition() { // initializer for conditional binding must have Optional type, not 'Bool'if conditionValue != computedValue { // cannot convert value of type 'Value' to expected argument type 'Bool'computedValue = self.wrappedValue // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
}
var wrappedValue: Value {
self.wrappedValue
}
var computedValue: Value {
if let conditionValue = condition() {
if conditionValue != computedValue {
self.computedValue = self.wrappedValue
}
}
return self.computedValue
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
}
var wrappedValue: Value {
self.wrappedValue
}
var computedValue: Value {
if let conditionValue = condition() {
if conditionValue != computedValue {
self.computedValue = self.wrappedValue
}
}
return self.computedValue
}
}
// Usage
var x = 0
var y = 0
@Cached(wrappedValue: { x }, condition: { x > 5 })
var cachedX: Int {
return x
}
@Cached(wrappedValue: { y }, condition: { y > 5 })
var cachedY: Int {
return y
}
x = 6
y = 6
print(cachedX) // 0
print(cachedY) // 0
x = 10
y = 10
print(cachedX) // 10
print(cachedY) // 10
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) { // initializer 'init(_:_:)' has different argument labels from those required by protocol 'CachedProperty' ('init(wrappedValue:condition:)')var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'var computedValue: Value { // invalid redeclaration of 'computedValue'if let conditionValue = condition() { // initializer for conditional binding must have Optional type, not 'Bool'if conditionValue != computedValue { // cannot convert value of type 'Value' to expected argument type 'Bool'self.computedValue = self.wrappedValue // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value
private var condition: Bool
private var computedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = wrappedValue()
self.condition = condition()
self.computedValue = self.value
}
var wrappedValue: Value {
return self.computedValue
}
mutating func update(wrappedValue: @autoclosure @escaping () -> Value) {
self.value = wrappedValue()
self.condition = self.condition
if self.condition {
self.computedValue = self.value
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value
private var condition: Bool
private var computedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = wrappedValue()
self.condition = condition()
self.computedValue = self.value
}
var wrappedValue: Value {
return self.computedValue
}
mutating func update(wrappedValue: @autoclosure @escaping () -> Value) {
self.value = wrappedValue()
self.condition = self.condition
if self.condition {
self.computedValue = self.value
}
}
}
// Usage
var x = 0
var y = 0
@Cached(wrappedValue: { x }, condition: { x > 0 })
var cachedX: Int {
return x
}
@Cached(wrappedValue: { y }, condition: { y > 0 })
var cachedY: Int {
return y
}
x = 5
y = 10
print(cachedX) // prints 5
print(cachedY) // prints 10
x = 15
y = 10
print(cachedX) // prints 15
print(cachedY) // prints 10
```self.condition = self.condition // assigning a property to itselfprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
private var isComputed: Bool = false
init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
self.isComputed = true
}
var wrappedValue: Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = newValue
self.isComputed = false
}
}
var value: Value {
if !self.isComputed && self.condition() {
self.computedValue = self.wrappedValue
self.isComputed = true
}
return self.computedValue
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
private var isComputed: Bool = false
init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
self.isComputed = true
}
var wrappedValue: Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = newValue
self.isComputed = false
}
}
var value: Value {
if !self.isComputed && self.condition() {
self.computedValue = self.wrappedValue
self.isComputed = true
}
return self.computedValue
}
}
// Usage
var x = 0
var y = 0
@Cached(wrappedValue: { x }, condition: { x > 5 })
var cachedX: Int {
return x
}
@Cached(wrappedValue: { y }, condition: { y > 5 })
var cachedY: Int {
return y
}
print(cachedX) // 0
print(cachedY) // 0
x = 6
print(cachedX) // 6
print(cachedY) // 0
y = 6
print(cachedX) // 6
print(cachedY) // 6
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'init(_ wrappedValue: @autoclosure @escaping () -> Value, _ condition: @escaping () -> Bool) { // initializer 'init(_:_:)' has different argument labels from those required by protocol 'CachedProperty' ('init(wrappedValue:condition:)')var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'self.computedValue = self.wrappedValue // cannot assign to property: 'self' is immutableself.isComputed = true // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
}
var wrappedValue: Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = newValue
self.computedValue = self.wrappedValue
}
}
var value: Value {
get {
if self.computedValue != self.wrappedValue && self.condition() {
self.computedValue = self.wrappedValue
}
return self.computedValue
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
}
var wrappedValue: Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = newValue
self.computedValue = self.wrappedValue
}
}
var value: Value {
get {
if self.computedValue != self.wrappedValue && self.condition() {
self.computedValue = self.wrappedValue
}
return self.computedValue
}
}
}
// Usage
var x = 0
var y = 0
@Cached(wrappedValue: { x }, condition: { x > 0 })
var cachedX: Int {
return x
}
@Cached(wrappedValue: { y }, condition: { y > 0 })
var cachedY: Int {
return y
}
x = 5
y = 10
print(cachedX) // 5
print(cachedY) // 10
x = 15
y = 10
print(cachedX) // 15
print(cachedY) // 10
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'if self.computedValue != self.wrappedValue && self.condition() { // binary operator '!=' cannot be applied to two 'Value' operandsself.computedValue = self.wrappedValue // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value
private var condition: () -> Bool
private var computedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = wrappedValue()
self.condition = condition
self.computedValue = self.value
}
var wrappedValue: Value {
return self.value
}
mutating func updateValue() {
if self.condition() {
self.computedValue = self.value
}
}
func observe(_ observer: CachedProperty.Type) {
self.observers.insert(observer)
if self.observers.count == 1 {
self.updateValue()
}
}
func stopObserving(_ observer: CachedProperty.Type) {
self.observers.remove(observer)
if self.observers.isEmpty {
self.computedValue = self.value
}
}
private var observers: Set<CachedProperty.Type> = []
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value
private var condition: () -> Bool
private var computedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.value = wrappedValue()
self.condition = condition
self.computedValue = self.value
}
var wrappedValue: Value {
return self.value
}
mutating func updateValue() {
if self.condition() {
self.computedValue = self.value
}
}
func observe(_ observer: CachedProperty.Type) {
self.observers.insert(observer)
if self.observers.count == 1 {
self.updateValue()
}
}
func stopObserving(_ observer: CachedProperty.Type) {
self.observers.remove(observer)
if self.observers.isEmpty {
self.computedValue = self.value
}
}
private var observers: Set<CachedProperty.Type> = []
}
// Usage
var counter = 0
var cachedCounter = Cached(wrappedValue: { () -> Int in return counter }, condition: { () -> Bool in return counter % 2 == 0 })
cachedCounter.observe(CachedCounter.self)
counter = 1
print(cachedCounter.wrappedValue) // 0
counter = 2
print(cachedCounter.wrappedValue) // 2
cachedCounter.stopObserving(CachedCounter.self)
counter = 3
print(cachedCounter.wrappedValue) // 2
```func observe(_ observer: CachedProperty.Type) { // use of protocol 'CachedProperty' as a type must be written 'any CachedProperty'self.updateValue() // cannot use mutating member on immutable value: 'self' is immutablefunc stopObserving(_ observer: CachedProperty.Type) { // use of protocol 'CachedProperty' as a type must be written 'any CachedProperty'self.computedValue = self.value // cannot assign to property: 'self' is immutableprivate var observers: Set<CachedProperty.Type> = [] // type 'any CachedProperty.Type' does not conform to protocol 'Hashable'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
private var isComputed: Bool = false
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
self.isComputed = true
}
var value: Value {
if !isComputed || !condition() {
isComputed = false
computedValue = wrappedValue()
}
return computedValue
}
mutating func updateWrappedValue() {
isComputed = false
computedValue = wrappedValue()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: () -> Bool
private var computedValue: Value
private var isComputed: Bool = false
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = condition
self.computedValue = wrappedValue()
self.isComputed = true
}
var value: Value {
if !isComputed || !condition() {
isComputed = false
computedValue = wrappedValue()
}
return computedValue
}
mutating func updateWrappedValue() {
isComputed = false
computedValue = wrappedValue()
}
}
// Usage
var counter = 0
var cachedCounter = Cached(wrappedValue: { counter }, condition: { counter > 0 })
print(cachedCounter.value) // 0
counter = 5
print(cachedCounter.value) // 5
counter = 10
print(cachedCounter.value) // 5
```private var wrappedValue: Value // private property 'wrappedValue' cannot have more restrictive access than its enclosing property wrapper type 'Cached' (which is internal)isComputed = false // cannot assign to property: 'self' is immutablecomputedValue = wrappedValue() // cannot call value of non-function type 'Value'computedValue = wrappedValue() // cannot assign to property: 'self' is immutablecomputedValue = wrappedValue() // cannot call value of non-function type 'Value'protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: Bool
private var computedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = false
self.computedValue = self.wrappedValue
}
var wrappedValue: Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = newValue
self.computedValue = self.wrappedValue
self.condition = false
}
}
var computedValue: Value {
get {
if !self.condition {
self.computedValue = self.wrappedValue
self.condition = true
}
return self.computedValue
}
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var wrappedValue: Value
private var condition: Bool
private var computedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue()
self.condition = false
self.computedValue = self.wrappedValue
}
var wrappedValue: Value {
get {
return self.wrappedValue
}
set {
self.wrappedValue = newValue
self.computedValue = self.wrappedValue
self.condition = false
}
}
var computedValue: Value {
get {
if !self.condition {
self.computedValue = self.wrappedValue
self.condition = true
}
return self.computedValue
}
}
}
// Example usage:
var x = 0
var y = 0
@Cached(wrappedValue: { x }, condition: { x > 0 })
var cachedX: Int {
return x
}
@Cached(wrappedValue: { y }, condition: { y > 0 })
var cachedY: Int {
return y
}
x = 5
y = 10
print(cachedX) // prints 5
print(cachedY) // prints 10
x = 15
y = 10
print(cachedX) // prints 15
print(cachedY) // prints 10
```struct Cached<Value>: CachedProperty { // property wrapper type 'Cached' has multiple non-static properties named 'wrappedValue'var wrappedValue: Value { // invalid redeclaration of 'wrappedValue'var computedValue: Value { // invalid redeclaration of 'computedValue'self.computedValue = self.wrappedValue // cannot assign to property: 'self' is immutableself.condition = true // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value
private var condition: Bool
private var computedValue: Value
private var computedValueNeedsUpdate: Bool = true
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition()
self.computedValue = wrappedValue()
}
var wrappedValue: Value {
get {
return self.value
}
set {
self.value = newValue
}
}
var computedValue: Value {
get {
if computedValueNeedsUpdate {
computedValueNeedsUpdate = false
computedValue = wrappedValue()
}
return computedValue
}
}
mutating func updateWrappedValue() {
computedValueNeedsUpdate = true
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
private var value: Value
private var condition: Bool
private var computedValue: Value
private var computedValueNeedsUpdate: Bool = true
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition()
self.computedValue = wrappedValue()
}
var wrappedValue: Value {
get {
return self.value
}
set {
self.value = newValue
}
}
var computedValue: Value {
get {
if computedValueNeedsUpdate {
computedValueNeedsUpdate = false
computedValue = wrappedValue()
}
return computedValue
}
}
mutating func updateWrappedValue() {
computedValueNeedsUpdate = true
}
}
// Usage
var counter = 0
var cachedCounter = Cached(wrappedValue: { counter }, condition: { counter > 0 })
print(cachedCounter.computedValue) // prints 0
counter = 1
print(cachedCounter.computedValue) // prints 1
counter = 2
print(cachedCounter.computedValue) // prints 1 (since condition is no longer true)
cachedCounter.updateWrappedValue()
print(cachedCounter.computedValue) // prints 0 (since condition is now true)
```self.wrappedValue = wrappedValue // function produces expected type 'Value'; did you mean to call it with '()'?var computedValue: Value { // invalid redeclaration of 'computedValue'computedValueNeedsUpdate = false // cannot assign to property: 'self' is immutablecomputedValue = wrappedValue() // cannot call value of non-function type 'Value'computedValue = wrappedValue() // cannot assign to property: 'self' is immutableprotocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
var wrappedValue: Value
var condition: () -> Bool
var value: Value {
get {
if condition() {
return self.wrappedValue()
} else {
return cachedValue
}
}
set {
cachedValue = newValue
}
}
private var cachedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = .init()
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Property wrapper that caches the computed value of a property and recomputes it only when a specified condition changes.
assistant
```swift
protocol CachedProperty {
associatedtype Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool)
}
@propertyWrapper
struct Cached<Value>: CachedProperty {
var wrappedValue: Value
var condition: () -> Bool
var value: Value {
get {
if condition() {
return self.wrappedValue()
} else {
return cachedValue
}
}
set {
cachedValue = newValue
}
}
private var cachedValue: Value
init(wrappedValue: @autoclosure @escaping () -> Value, condition: @escaping () -> Bool) {
self.wrappedValue = wrappedValue
self.condition = condition
self.cachedValue = .init()
}
}
// Usage
var counter = 0
var value = 0
@Cached(wrappedValue: { value = $0; return value }, condition: { counter % 2 == 0 })
var cachedValue: Int {
return 0
}
print(cachedValue) // Outputs: 0
counter += 1
print(cachedValue) // Outputs: 0 (No recomputation because condition is not met)
counter += 1
print(cachedValue) // Outputs: 0 (No recomputation because condition is not met)
counter += 1
print(cachedValue) // Outputs: 0 (Recomputation because condition is met)
```return self.wrappedValue() // cannot call value of non-function type 'Value'self.wrappedValue = wrappedValue // function produces expected type 'Value'; did you mean to call it with '()'?self.cachedValue = .init() // type 'Value' has no member 'init'infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}
// Example usage:
let add1 = { x in x + 1 }
let multiplyBy2 = { x in x * 2 }
let composedFunction = add1 >>>< multiplyBy2
let result = composedFunction(5)
print(result) // Output: 12
```associativity right // expected colon after attribute name in precedence groupsection FunctionCompositionPrecedence // 'section' is not a valid precedence group attributefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // operator implementation without matching operator declarationfunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopelet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionComposition
}
func >>><(f: @escaping (Int) -> Int, g: @escaping (Int) -> Int) -> @escaping (Int) -> Int {
return { x in f(g(x)) }
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionComposition
}
func >>><(f: @escaping (Int) -> Int, g: @escaping (Int) -> Int) -> @escaping (Int) -> Int {
return { x in f(g(x)) }
}
```associativity right // expected colon after attribute name in precedence groupsection FunctionComposition // 'section' is not a valid precedence group attributefunc >>><(f: @escaping (Int) -> Int, g: @escaping (Int) -> Int) -> @escaping (Int) -> Int { // operator implementation without matching operator declarationfunc >>><(f: @escaping (Int) -> Int, g: @escaping (Int) -> Int) -> @escaping (Int) -> Int { // @escaping attribute may only be used in function parameter positionlet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}
// Example usage:
let add1 = { x in x + 1 }
let multiplyBy2 = { x in x * 2 }
let composed = add1 >>>< multiplyBy2
print(composed(5)) // prints 12
```associativity right // expected colon after attribute name in precedence groupsection FunctionCompositionPrecedence // 'section' is not a valid precedence group attributefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // operator implementation without matching operator declarationfunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopelet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionComposition
}
func >>><(f: @escaping (Int) -> Int, g: @escaping (Int) -> Int) -> @escaping (Int) -> Int {
return { x in f(g(x)) }
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionComposition
}
func >>><(f: @escaping (Int) -> Int, g: @escaping (Int) -> Int) -> @escaping (Int) -> Int {
return { x in f(g(x)) }
}
```associativity right // expected colon after attribute name in precedence groupsection FunctionComposition // 'section' is not a valid precedence group attributefunc >>><(f: @escaping (Int) -> Int, g: @escaping (Int) -> Int) -> @escaping (Int) -> Int { // operator implementation without matching operator declarationfunc >>><(f: @escaping (Int) -> Int, g: @escaping (Int) -> Int) -> @escaping (Int) -> Int { // @escaping attribute may only be used in function parameter positionlet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}
// Example usage:
let add1 = { x in x + 1 }
let multiply = { x in x * 2 }
let composed = add1 >>>< multiply
print(composed(5)) // Output: 12
```associativity right // expected colon after attribute name in precedence groupsection FunctionCompositionPrecedence // 'section' is not a valid precedence group attributefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // operator implementation without matching operator declarationfunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopelet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}
// Example usage:
let add1 = { x in x + 1 }
let multiplyBy10 = { x in x * 10 }
let composedFunction = add1 >>>< multiplyBy10
let result = composedFunction(5)
print(result) // prints: 55
```associativity right // expected colon after attribute name in precedence groupsection FunctionCompositionPrecedence // 'section' is not a valid precedence group attributefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // operator implementation without matching operator declarationfunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopelet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>><(f: @escaping (Double) -> Double, g: @escaping (Double) -> Double) -> @escaping (Double) -> Double {
return { x in f(g(x)) }
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>><(f: @escaping (Double) -> Double, g: @escaping (Double) -> Double) -> @escaping (Double) -> Double {
return { x in f(g(x)) }
}
```associativity right // expected colon after attribute name in precedence groupsection FunctionCompositionPrecedence // 'section' is not a valid precedence group attributefunc >>><(f: @escaping (Double) -> Double, g: @escaping (Double) -> Double) -> @escaping (Double) -> Double { // operator implementation without matching operator declarationfunc >>><(f: @escaping (Double) -> Double, g: @escaping (Double) -> Double) -> @escaping (Double) -> Double { // @escaping attribute may only be used in function parameter positionlet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionComposition
}
func >>>< (f: (Double) -> Double, g: (Double) -> Double) -> (Double) -> Double {
return { x in f(g(x)) }
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionComposition
}
func >>>< (f: (Double) -> Double, g: (Double) -> Double) -> (Double) -> Double {
return { x in f(g(x)) }
}
```associativity right // expected colon after attribute name in precedence groupsection FunctionComposition // 'section' is not a valid precedence group attributefunc >>>< (f: (Double) -> Double, g: (Double) -> Double) -> (Double) -> Double { // operator implementation without matching operator declarationlet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
precedence 100
}
func >>><(f: @escaping (Double) -> Double, g: @escaping (Double) -> Double) -> @escaping (Double) -> Double {
return { x in f(g(x)) }
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
precedence 100
}
func >>><(f: @escaping (Double) -> Double, g: @escaping (Double) -> Double) -> @escaping (Double) -> Double {
return { x in f(g(x)) }
}
```associativity right // expected colon after attribute name in precedence groupprecedence 100 // 'precedence' is not a valid precedence group attributefunc >>><(f: @escaping (Double) -> Double, g: @escaping (Double) -> Double) -> @escaping (Double) -> Double { // operator implementation without matching operator declarationfunc >>><(f: @escaping (Double) -> Double, g: @escaping (Double) -> Double) -> @escaping (Double) -> Double { // @escaping attribute may only be used in function parameter positionlet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeinfix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom infix operator >>> that composes two functions. The operator should take two functions and return a new function that represents the composition of the two functions (i.e., the output of the first function becomes the input of the second function).
assistant
```swift
infix operator >>>: FunctionCompositionPrecedence
precedencegroup FunctionCompositionPrecedence {
associativity right
section FunctionCompositionPrecedence
}
func >>>< (f: FunctionType, g: FunctionType) -> FunctionType {
return { input in
return g(f(input))
}
}
// Example usage
let add1 = { x in x + 1 }
let multiply = { x in x * 2 }
let composed = add1 >>>< multiply
print(composed(5)) // Output: 12
```associativity right // expected colon after attribute name in precedence groupsection FunctionCompositionPrecedence // 'section' is not a valid precedence group attributefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // operator implementation without matching operator declarationfunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopefunc >>>< (f: FunctionType, g: FunctionType) -> FunctionType { // cannot find type 'FunctionType' in scopelet composedFunction = doubleDescription >>> stringCount // cannot find operator '>>>' in scopeimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, ofLength: bufferSize) else {
return nil
}
let hasher = SHA256Digest()
hasher.update(data)
return hasher
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, ofLength: bufferSize) else {
return nil
}
let hasher = SHA256Digest()
hasher.update(data)
return hasher
}
```guard let data = try? InputStream.readData(of: inputStream, ofLength: bufferSize) else { // type 'InputStream' has no member 'readData'let hasher = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hash = try SHA256.hash(of: data)
return hash
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hash = try SHA256.hash(of: data)
return hash
}
```guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else { // type 'InputStream' has no member 'readData'let hash = try SHA256.hash(of: data) // incorrect argument label in call (have 'of:', expected 'data:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hasher = SHA256Digest()
hasher.update(data)
return hasher
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hasher = SHA256Digest()
hasher.update(data)
return hasher
}
```guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else { // type 'InputStream' has no member 'readData'let hasher = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = inputStream.readData(ofSize: bufferSize) else {
return nil
}
let hasher = SHA256()
hasher.update(data)
return hasher.finalDigest
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = inputStream.readData(ofSize: bufferSize) else {
return nil
}
let hasher = SHA256()
hasher.update(data)
return hasher.finalDigest
}
```guard let data = inputStream.readData(ofSize: bufferSize) else { // value of type 'InputStream' has no member 'readData'hasher.update(data) // cannot use mutating member on immutable value: 'hasher' is a 'let' constanthasher.update(data) // missing argument label 'bufferPointer:' in callreturn hasher.finalDigest // value of type 'SHA256' has no member 'finalDigest'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else { return nil }
return try SHA256.hash(of: data)
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else { return nil }
return try SHA256.hash(of: data)
}
```guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else { return nil } // type 'InputStream' has no member 'readData'return try SHA256.hash(of: data) // incorrect argument label in call (have 'of:', expected 'data:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hasher = SHA256()
hasher.update(data)
return hasher.finalDigest
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hasher = SHA256()
hasher.update(data)
return hasher.finalDigest
}
```guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else { // type 'InputStream' has no member 'readData'hasher.update(data) // cannot use mutating member on immutable value: 'hasher' is a 'let' constanthasher.update(data) // missing argument label 'bufferPointer:' in callreturn hasher.finalDigest // value of type 'SHA256' has no member 'finalDigest'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, ofLength: bufferSize) else {
return nil
}
let hasher = SHA256Digest()
hasher.update(data)
return hasher
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, ofLength: bufferSize) else {
return nil
}
let hasher = SHA256Digest()
hasher.update(data)
return hasher
}
```guard let data = try? InputStream.readData(of: inputStream, ofLength: bufferSize) else { // type 'InputStream' has no member 'readData'let hasher = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializersimport CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = inputStream.readData(ofSize: bufferSize) else {
return nil
}
let hasher = SHA256()
hasher.update(data)
return hasher.finalDigest
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = inputStream.readData(ofSize: bufferSize) else {
return nil
}
let hasher = SHA256()
hasher.update(data)
return hasher.finalDigest
}
```guard let data = inputStream.readData(ofSize: bufferSize) else { // value of type 'InputStream' has no member 'readData'hasher.update(data) // cannot use mutating member on immutable value: 'hasher' is a 'let' constanthasher.update(data) // missing argument label 'bufferPointer:' in callreturn hasher.finalDigest // value of type 'SHA256' has no member 'finalDigest'import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hash = try SHA256.hash(of: data)
return hash
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hash = try SHA256.hash(of: data)
return hash
}
```guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else { // type 'InputStream' has no member 'readData'let hash = try SHA256.hash(of: data) // incorrect argument label in call (have 'of:', expected 'data:')import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hasher = SHA256Digest()
hasher.update(data)
return hasher
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that computes the SHA-256 hash of data read from a stream with a specified buffer size using Apple's CryptoKit framework.
assistant
```swift
import CryptoKit
func computeSHA256Hash(of inputStream: InputStream, bufferSize: Int) -> SHA256Digest? {
guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else {
return nil
}
let hasher = SHA256Digest()
hasher.update(data)
return hasher
}
```guard let data = try? InputStream.readData(of: inputStream, size: bufferSize) else { // type 'InputStream' has no member 'readData'let hasher = SHA256Digest() // 'SHA256Digest' cannot be constructed because it has no accessible initializerstypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let data = Data(bytes)
self = String(data: data, encoding: .utf8) ?? ""
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let data = Data(bytes)
self = String(data: data, encoding: .utf8) ?? ""
}
}
```let bytes = Array(tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let data = Data(bytes)
self = String(data: data, encoding: .utf8) ?? ""
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let data = Data(bytes)
self = String(data: data, encoding: .utf8) ?? ""
}
}
```let bytes = Array(tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
self = String(utf8: &array.first, count: array.count)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let array = Array(tuple16)
self = String(utf8: &array.first, count: array.count)
}
}
// Example usage:
let tuple16 = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0)
let string = "Hello, World!"
let combined = "\(string) \(tuple16)"
print(combined) // Outputs: Hello, World! (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0)
```let array = Array(tuple16) // no exact matches in call to initializerself = String(utf8: &array.first, count: array.count) // incorrect argument label in call (have 'utf8:count:', expected 'utf16CodeUnits:count:')typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let data = Data(bytes)
self = String(data: data, encoding: .utf8) ?? ""
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let data = Data(bytes)
self = String(data: data, encoding: .utf8) ?? ""
}
}
```let bytes = Array(tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = [UInt8](tuple16)
self = String(data: data, encoding: .utf8) ?? ""
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = [UInt8](tuple16)
self = String(data: data, encoding: .utf8) ?? ""
}
}
// Usage
let str = String(tuple16: (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15))
print(str) // Output: "0123456789101112131415"
```let data = [UInt8](tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = [Int8](tuple16)
self = String(data: data, encoding: .utf8) ?? ""
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let data = [Int8](tuple16)
self = String(data: data, encoding: .utf8) ?? ""
}
}
// Example usage:
let str = String(tuple16: (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15))
print(str) // Outputs: "0123456789101112131415"
```let data = [Int8](tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let data = Data(bytes)
self = String(data: data, encoding: .utf8) ?? ""
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let data = Data(bytes)
self = String(data: data, encoding: .utf8) ?? ""
}
}
// Example usage:
let str = String(tuple16: (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15))
print(str) // Outputs: "0123456789101112131415"
```let bytes = Array(tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let str = String(bytes.map { String(Int($0), radix: 10) }.joined(separator: ""))
self = str
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let bytes = Array(tuple16)
let str = String(bytes.map { String(Int($0), radix: 10) }.joined(separator: ""))
self = str
}
}
// Usage
let str = String(tuple16: (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15))
print(str) // prints "0123456789101112131415"
```let bytes = Array(tuple16) // no exact matches in call to initializertypealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let str = String(tuple16.0) + String(tuple16.1) + String(tuple16.2) + String(tuple16.3) + String(tuple16.4) + String(tuple16.5) + String(tuple16.6) + String(tuple16.7) + String(tuple16.8) + String(tuple16.9) + String(tuple16.10) + String(tuple16.11) + String(tuple16.12) + String(tuple16.13) + String(tuple16.14) + String(tuple16.15)
self = str
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let str = String(tuple16.0) + String(tuple16.1) + String(tuple16.2) + String(tuple16.3) + String(tuple16.4) + String(tuple16.5) + String(tuple16.6) + String(tuple16.7) + String(tuple16.8) + String(tuple16.9) + String(tuple16.10) + String(tuple16.11) + String(tuple16.12) + String(tuple16.13) + String(tuple16.14) + String(tuple16.15)
self = str
}
}
// Example usage:
let str = String(tuple16: (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15))
print(str) // prints "0123456789101112131415"
``` // XCTAssertEqual failed: (7210110810811144328711111410810033000) is not equal to (Hello, World!)typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let str = String(tuple16.0) + String(tuple16.1) + String(tuple16.2) + String(tuple16.3) + String(tuple16.4) + String(tuple16.5) + String(tuple16.6) + String(tuple16.7) + String(tuple16.8) + String(tuple16.9) + String(tuple16.10) + String(tuple16.11) + String(tuple16.12) + String(tuple16.13) + String(tuple16.14) + String(tuple16.15)
self.init(str)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Extension to the String type that allows initializing a String from a tuple of 16 Int8 values, where the tuple represents a C-style null-terminated string.
assistant
```swift
typealias Tuple16 = (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8)
extension String {
init(tuple16: Tuple16) {
let str = String(tuple16.0) + String(tuple16.1) + String(tuple16.2) + String(tuple16.3) + String(tuple16.4) + String(tuple16.5) + String(tuple16.6) + String(tuple16.7) + String(tuple16.8) + String(tuple16.9) + String(tuple16.10) + String(tuple16.11) + String(tuple16.12) + String(tuple16.13) + String(tuple16.14) + String(tuple16.15)
self.init(str)
}
}
// Example usage:
let str = String(tuple16: (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15))
print(str) // Outputs: "0123456789101112131415"
``` // XCTAssertEqual failed: (7210110810811144328711111410810033000) is not equal to (Hello, World!)import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.size == rhs.size,
lhs.formatDescription.pixelFormatType == rhs.formatDescription.pixelFormatType,
lhs.videoFrameMetadata.isEqual(rhs.videoFrameMetadata) else {
return false
}
let lhsDataProvider = lhs.copyDataProvider()
let rhsDataProvider = rhs.copyDataProvider()
guard let lhsData = lhsDataProvider?.copyData(),
let rhsData = rhsDataProvider?.copyData() else {
return false
}
return lhsData.isEqual(rhsData)
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.size == rhs.size,
lhs.formatDescription.pixelFormatType == rhs.formatDescription.pixelFormatType,
lhs.videoFrameMetadata.isEqual(rhs.videoFrameMetadata) else {
return false
}
let lhsDataProvider = lhs.copyDataProvider()
let rhsDataProvider = rhs.copyDataProvider()
guard let lhsData = lhsDataProvider?.copyData(),
let rhsData = rhsDataProvider?.copyData() else {
return false
}
return lhsData.isEqual(rhsData)
}
```guard lhs.size == rhs.size, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'guard lhs.size == rhs.size, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'lhs.formatDescription.pixelFormatType == rhs.formatDescription.pixelFormatType, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription.pixelFormatType == rhs.formatDescription.pixelFormatType, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.videoFrameMetadata.isEqual(rhs.videoFrameMetadata) else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoFrameMetadata'lhs.videoFrameMetadata.isEqual(rhs.videoFrameMetadata) else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoFrameMetadata'let lhsDataProvider = lhs.copyDataProvider() // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'copyDataProvider'let rhsDataProvider = rhs.copyDataProvider() // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'copyDataProvider'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.size == rhs.size,
lhs.formatDescription.pixelType == rhs.formatDescription.pixelType,
lhs.videoSubtype == rhs.videoSubtype else {
return false
}
let lhsDataProvider = lhs.copyDataProvider()
let rhsDataProvider = rhs.copyDataProvider()
guard let lhsData = lhsDataProvider?.copyData(),
let rhsData = rhsDataProvider?.copyData() else {
return false
}
return lhsData == rhsData
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.size == rhs.size,
lhs.formatDescription.pixelType == rhs.formatDescription.pixelType,
lhs.videoSubtype == rhs.videoSubtype else {
return false
}
let lhsDataProvider = lhs.copyDataProvider()
let rhsDataProvider = rhs.copyDataProvider()
guard let lhsData = lhsDataProvider?.copyData(),
let rhsData = rhsDataProvider?.copyData() else {
return false
}
return lhsData == rhsData
}
```guard lhs.size == rhs.size, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'guard lhs.size == rhs.size, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'lhs.formatDescription.pixelType == rhs.formatDescription.pixelType, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription.pixelType == rhs.formatDescription.pixelType, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.videoSubtype == rhs.videoSubtype else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoSubtype'lhs.videoSubtype == rhs.videoSubtype else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoSubtype'let lhsDataProvider = lhs.copyDataProvider() // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'copyDataProvider'let rhsDataProvider = rhs.copyDataProvider() // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'copyDataProvider'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.size == rhs.size && lhs.formatDescription == rhs.formatDescription && lhs.videoFrameBuffer.getBytes(from: rhs.videoFrameBuffer) == nil
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
return lhs.size == rhs.size && lhs.formatDescription == rhs.formatDescription && lhs.videoFrameBuffer.getBytes(from: rhs.videoFrameBuffer) == nil
}
```return lhs.size == rhs.size && lhs.formatDescription == rhs.formatDescription && lhs.videoFrameBuffer.getBytes(from: rhs.videoFrameBuffer) == nil // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoFrameBuffer'return lhs.size == rhs.size && lhs.formatDescription == rhs.formatDescription && lhs.videoFrameBuffer.getBytes(from: rhs.videoFrameBuffer) == nil // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'return lhs.size == rhs.size && lhs.formatDescription == rhs.formatDescription && lhs.videoFrameBuffer.getBytes(from: rhs.videoFrameBuffer) == nil // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoFrameBuffer'return lhs.size == rhs.size && lhs.formatDescription == rhs.formatDescription && lhs.videoFrameBuffer.getBytes(from: rhs.videoFrameBuffer) == nil // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'return lhs.size == rhs.size && lhs.formatDescription == rhs.formatDescription && lhs.videoFrameBuffer.getBytes(from: rhs.videoFrameBuffer) == nil // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'return lhs.size == rhs.size && lhs.formatDescription == rhs.formatDescription && lhs.videoFrameBuffer.getBytes(from: rhs.videoFrameBuffer) == nil // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.getBytes(allocating: true) != rhs.getBytes(allocating: true) {
return false
}
return true
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.getBytes(allocating: true) != rhs.getBytes(allocating: true) {
return false
}
return true
}
```if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.getBytes(allocating: true) != rhs.getBytes(allocating: true) { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'getBytes'if lhs.getBytes(allocating: true) != rhs.getBytes(allocating: true) { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'getBytes'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.currentFrameNumber != rhs.currentFrameNumber {
return false
}
return true
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.currentFrameNumber != rhs.currentFrameNumber {
return false
}
return true
}
```if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.currentFrameNumber != rhs.currentFrameNumber { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'currentFrameNumber'if lhs.currentFrameNumber != rhs.currentFrameNumber { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'currentFrameNumber'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.dataBuffer.length != rhs.dataBuffer.length {
return false
}
if lhs.dataBuffer.offset != rhs.dataBuffer.offset {
return false
}
if lhs.dataBuffer.bytes != rhs.dataBuffer.bytes {
return false
}
return true
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.dataBuffer.length != rhs.dataBuffer.length {
return false
}
if lhs.dataBuffer.offset != rhs.dataBuffer.offset {
return false
}
if lhs.dataBuffer.bytes != rhs.dataBuffer.bytes {
return false
}
return true
}
```if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.dataBuffer.length != rhs.dataBuffer.length { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.length != rhs.dataBuffer.length { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.offset != rhs.dataBuffer.offset { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.offset != rhs.dataBuffer.offset { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.bytes != rhs.dataBuffer.bytes { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.bytes != rhs.dataBuffer.bytes { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.formatDescription != rhs.formatDescription {
return false
}
if lhs.getBytes(allocating: true) != rhs.getBytes(allocating: true) {
return false
}
return true
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.formatDescription != rhs.formatDescription {
return false
}
if lhs.getBytes(allocating: true) != rhs.getBytes(allocating: true) {
return false
}
return true
}
```if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.formatDescription != rhs.formatDescription { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'if lhs.formatDescription != rhs.formatDescription { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'if lhs.getBytes(allocating: true) != rhs.getBytes(allocating: true) { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'getBytes'if lhs.getBytes(allocating: true) != rhs.getBytes(allocating: true) { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'getBytes'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.formatDescription.pixelType != rhs.formatDescription.pixelType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.dataBuffer.length != rhs.dataBuffer.length {
return false
}
if lhs.dataBuffer.offset != rhs.dataBuffer.offset {
return false
}
if lhs.dataBuffer.bytes != rhs.dataBuffer.bytes {
return false
}
return true
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.formatDescription.pixelType != rhs.formatDescription.pixelType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.dataBuffer.length != rhs.dataBuffer.length {
return false
}
if lhs.dataBuffer.offset != rhs.dataBuffer.offset {
return false
}
if lhs.dataBuffer.bytes != rhs.dataBuffer.bytes {
return false
}
return true
}
```if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.formatDescription.pixelType != rhs.formatDescription.pixelType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'if lhs.formatDescription.pixelType != rhs.formatDescription.pixelType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.dataBuffer.length != rhs.dataBuffer.length { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.length != rhs.dataBuffer.length { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.offset != rhs.dataBuffer.offset { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.offset != rhs.dataBuffer.offset { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.bytes != rhs.dataBuffer.bytes { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.bytes != rhs.dataBuffer.bytes { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.dataBuffer.length != rhs.dataBuffer.length {
return false
}
return true
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
if lhs.size != rhs.size {
return false
}
if lhs.pixelFormatType != rhs.pixelFormatType {
return false
}
if lhs.videoPixelFormatType != rhs.videoPixelFormatType {
return false
}
if lhs.dataBuffer.length != rhs.dataBuffer.length {
return false
}
return true
}
```if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.size != rhs.size { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'if lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.pixelFormatType != rhs.pixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'pixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.videoPixelFormatType != rhs.videoPixelFormatType { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'if lhs.dataBuffer.length != rhs.dataBuffer.length { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'if lhs.dataBuffer.length != rhs.dataBuffer.length { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'dataBuffer'import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.size == rhs.size,
lhs.formatDescription.pixelType == rhs.formatDescription.pixelType,
lhs.videoPixelFormatType == rhs.videoPixelFormatType else {
return false
}
let lhsDataProvider = lhs.copyDataProvider()
let rhsDataProvider = rhs.copyDataProvider()
guard let lhsData = lhsDataProvider?.copyData(),
let rhsData = rhsDataProvider?.copyData() else {
return false
}
return lhsData == rhsData
}user
Write code in Swift programming language. Don't include usage examples or tests.
Custom operator which provides comparison for two CVPixelBuffer objects and returns true if two pixel buffers equal in size, pixel format, and content.
assistant
```swift
import CoreVideo
func ==(lhs: CVPixelBuffer, rhs: CVPixelBuffer) -> Bool {
guard lhs.size == rhs.size,
lhs.formatDescription.pixelType == rhs.formatDescription.pixelType,
lhs.videoPixelFormatType == rhs.videoPixelFormatType else {
return false
}
let lhsDataProvider = lhs.copyDataProvider()
let rhsDataProvider = rhs.copyDataProvider()
guard let lhsData = lhsDataProvider?.copyData(),
let rhsData = rhsDataProvider?.copyData() else {
return false
}
return lhsData == rhsData
}
```guard lhs.size == rhs.size, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'guard lhs.size == rhs.size, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'size'lhs.formatDescription.pixelType == rhs.formatDescription.pixelType, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.formatDescription.pixelType == rhs.formatDescription.pixelType, // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'formatDescription'lhs.videoPixelFormatType == rhs.videoPixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'lhs.videoPixelFormatType == rhs.videoPixelFormatType else { // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'videoPixelFormatType'let lhsDataProvider = lhs.copyDataProvider() // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'copyDataProvider'let rhsDataProvider = rhs.copyDataProvider() // value of type 'CVPixelBuffer' (aka 'CVBuffer') has no member 'copyDataProvider'struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var result: [PublicItem] = []
for item in items {
result.append(PublicItem(value: item.value))
}
return result
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var result: [PublicItem] = []
for item in items {
result.append(PublicItem(value: item.value))
}
return result
}
```result.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}
```publicItems.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}
```publicItems.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}
```publicItems.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
PublicItem(value: item.value)
}
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
return items.map { item in
PublicItem(value: item.value)
}
}
```PublicItem(value: item.value) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}
```publicItems.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}
```publicItems.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var result = [PublicItem]()
for item in items {
result.append(PublicItem(value: item.value))
}
return result
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var result = [PublicItem]()
for item in items {
result.append(PublicItem(value: item.value))
}
return result
}
```result.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}
```publicItems.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelstruct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function to convert an array of structs with private integer fields into an array of public structs with identical integer fields by directly reinterpreting memory, assuming the structs have the same memory layout and alignment.
assistant
```swift
struct PrivateItem {
private let value: Int
init(value: Int) {
self.value = value
}
}
struct PublicItem {
let value: Int
}
func reveal(items: [PrivateItem]) -> [PublicItem] {
var publicItems = [PublicItem]()
for item in items {
publicItems.append(PublicItem(value: item.value))
}
return publicItems
}
```publicItems.append(PublicItem(value: item.value)) // 'value' is inaccessible due to 'private' protection levelenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int("\($0)")! }
let rhsParts = rhs.split(separator: ".").map { Int("\($0)")! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
}
if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
}
if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int("\($0)")! }
let rhsParts = rhs.split(separator: ".").map { Int("\($0)")! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
}
if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
}
if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedDescending
} else if lhsParts.count > rhsParts.count {
return .orderedAscending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedDescending
} else if lhsParts.count > rhsParts.count {
return .orderedAscending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int("\($0)")! }
let rhsParts = rhs.split(separator: ".").map { Int("\($0)")! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int("\($0)")! }
let rhsParts = rhs.split(separator: ".").map { Int("\($0)")! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
}
if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
}
if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
}
if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
}
if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failedenum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}user
Write code in Swift programming language. Don't include usage examples or tests.
Function that compares two version number strings (created with respect of semantic versioning specification including "alpha" and "beta" tags) and returning their ordering as a value of type ComparisonResult.
assistant
```swift
enum ComparisonResult {
case orderedSame
case orderedAscending
case orderedDescending
}
func compareVersions(_ lhs: String, _ rhs: String) -> ComparisonResult {
let lhsParts = lhs.split(separator: ".").map { Int(String($0))! }
let rhsParts = rhs.split(separator: ".").map { Int(String($0))! }
for (lhsPart, rhsPart) in zip(lhsParts, rhsParts) {
if lhsPart < rhsPart {
return .orderedAscending
} else if lhsPart > rhsPart {
return .orderedDescending
}
}
if lhsParts.count < rhsParts.count {
return .orderedAscending
} else if lhsParts.count > rhsParts.count {
return .orderedDescending
}
return .orderedSame
}
``` // XCTAssertTrue failed