| // RUN: %target-swift-frontend -emit-silgen %s | FileCheck %s |
| |
| protocol Fooable { |
| typealias Bar |
| |
| func foo<T: Fooable where T.Bar == Self.Bar>(x x: T) -> Self.Bar |
| } |
| |
| struct X {} |
| |
| // Ensure that the protocol witness for requirements with same-type constraints |
| // is set correctly. <rdar://problem/16369105> |
| // CHECK-LABEL: sil hidden [transparent] [thunk] @_TTWV17witness_same_type3FooS_7FooableS_FS1_3foo{{.*}} : $@convention(witness_method) <T where T : Fooable, T.Bar == X> (@out X, @in T, @in_guaranteed Foo) -> () |
| struct Foo: Fooable { |
| typealias Bar = X |
| |
| func foo<T: Fooable where T.Bar == X>(x x: T) -> X { return X() } |
| } |
| |
| // rdar://problem/19049566 |
| // CHECK-LABEL: sil [transparent] [thunk] @_TTWu0_Rxs12SequenceType_zWx9Generator7Element_rGV17witness_same_type14LazySequenceOfxq__S_S2_FS_8generate |
| public struct LazySequenceOf<SS : SequenceType, A where SS.Generator.Element == A> : SequenceType { |
| public func generate() -> AnyGenerator<A> { |
| var opt: AnyGenerator<A>? |
| return opt! |
| } |
| public subscript(i : Int) -> A { |
| get { |
| var opt: A? |
| return opt! |
| } |
| } |
| } |