| // RUN: %target-swift-frontend -O -emit-sil -primary-file %s | %FileCheck %s |
| |
| // CHECK-LABEL: sil hidden [transparent] @$s18subscript_accessor1XVxSgyciM |
| // CHECK: [[SETTER:%.*]] = function_ref @$s18subscript_accessor1XVxSgycis |
| // CHECK-NEXT: apply [[SETTER]]<T> |
| struct X<T> { |
| subscript () -> T? { |
| get { |
| return nil |
| } |
| set { } |
| } |
| } |
| |
| // Don't crash dealing with T? in a non-generic context. |
| // rdar://44762116 |
| struct WillBeConcretelyConstrained<T> {} |
| extension WillBeConcretelyConstrained where T == Int { |
| subscript(key: Int) -> T? { |
| get { return nil } |
| set {} |
| } |
| } |
| |
| // CHECK-LABEL: sil hidden [transparent] @$s18subscript_accessor27WillBeConcretelyConstrainedVAASiRszlEySiSgSiciM |
| // CHECK-SAME: $@yield_once @convention(method) (Int, @inout WillBeConcretelyConstrained<Int>) -> @yields @inout Optional<Int> |
| |
| // CHECK: sil{{.*}}s18subscript_accessor9testXRead1xxAA1XVyxG_tlF |
| @_specialize(where T == (Int, Int)) |
| func testXRead<T>(x: X<T>) -> T { |
| return x[]! |
| } |
| // CHECK: $s18subscript_accessor1XVxSgycisTf4dn_n |
