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protocol P<E> { ... } | |
let p: P<String> |
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protocol P { var v: String { get } } | |
func f() -> P { | |
struct InnerType: P { | |
let v = "inner" | |
} | |
return InnerType() | |
} | |
f().v // inner |
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// unowned = unowned(safe) | |
unowned(safe) var safe: AnyObject | |
{ [unowned(safe) a] in /* ... */ } | |
// like `__unsafe_unretained` | |
unowned(unsafe) var unsafe: AnyObject | |
{ [unowned(unsafe) a] in /* ... */ } |
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// > Updated the discussion of protocol extensions in Extension Declaration now that final isn’t allowed in them. | |
// https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/RevisionHistory.html | |
// https://web.archive.org/web/20170221062722/https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/Declarations.html | |
// https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/Declarations.html#//apple_ref/doc/uid/TP40014097-CH34-ID378 | |
class A {} | |
extension A { | |
final func f() {} | |
} | |
A().f() |
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enum Enum { | |
case a | |
case b | |
@_downgrade_exhaustivity_check | |
case c | |
} | |
// Compile: OK (warning) | |
switch Enum.a { | |
case .a: break |
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enum E<T: ExpressibleByIntegerLiteral>: T where T: Equatable { | |
case a = 1 | |
} | |
struct MyType: ExpressibleByIntegerLiteral, Equatable { | |
let v: String | |
init(integerLiteral value: IntegerLiteralType) { v = String(value) } | |
static func ==(lhs: MyType, rhs: MyType) -> Bool { return true } | |
} |
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enum E<T: ExpressibleByIntegerLiteral>: T where T: Equatable { | |
case a = 1 | |
} | |
// ... | |
let ei: E<Int> = .a | |
let et: E<MyType> = .a | |
let i: E<Int> = E<Int>.a.rawValue |
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enum E<T: ExpressibleByIntegerLiteral>: T where T: Equatable { | |
case a = 1 | |
} |
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public static final void f() { | |
Integer v = Integer.valueOf(300); | |
Integer v2 = Integer.valueOf(300); | |
boolean var10000; | |
if(v == v2) { | |
var10000 = true; | |
} else { | |
var10000 = false; | |
} |
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class S { | |
fun f(v: Int): String = "f" | |
} | |
fun main() { | |
var sf: (S, Int) -> String = S::f | |
var _sf: S.(Int) -> String = sf | |
val sf1: String = sf(S(), 1) | |
val sf2: String = _sf(S(), 1) | |
} |