In Swift, you can create types that provide custom string representations by conforming to the CustomStringConvertible
and CustomDebugStringConvertible
protocols. This allows you to control how instances of your types are represented as strings in print statements and during debugging.
Here’s a simple example of a class implementing these protocols:
struct Person: CustomStringConvertible, CustomDebugStringConvertible {
var name: String
var age: Int
var description: String {
return "Person(name: \(name), age: \(age))"
}
var debugDescription: String {
return "Debug: Person { name: \(name), age: \(age) }"
}
}
let person = Person(name: "Alice", age: 30)
print(person) // Output: Person(name: Alice, age: 30)
print(person.debugDescription) // Output: Debug: Person { name: Alice, age: 30 }
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