SE-2076 Multi-pattern catch clause
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do {
//...
} catch MyError.code1, MyError.code2 {}
SE-2079 Multiple trailing closure
No need for small curly braces anymore.
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Button {
//...
} label {
// ...
} action {
// ...
}
SE-2066 Comparable conformance for enum
Now we can compare enum case with > or < or etc.
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enum Size {
case small
case large
}
if Size.small < Size.large {}
SE-2081 @main attribute
Type based program entry point
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@main
struct MyApp {
static main() {}
}
It requires a static main function.
SE-0267 where clause inside a generic type or extension
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struct Foo<Element> {}
extension Foo {
func jump() -> Element where Element: Comparable {}
}
SE-0280 enum cases as protocol matching witness
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protocol Foo {
var name: String
}
enum Zoo: Foo {
case name
}
References
- [Hacking With Swift] https://www.hackingwithswift.com/articles/218/whats-new-in-swift-5-3