| // RUN: %target-swift-frontend -emit-silgen -sdk %S/Inputs %s | %FileCheck %s |
| |
| struct S { var x, y: Int } |
| |
| // CHECK-LABEL: sil hidden @_TF27collection_subtype_downcast14array_downcastFT5arrayGSaP___GSqGSaVS_1S__ : |
| // CHECK: bb0([[ARG:%.*]] : $Array<Any>): |
| // CHECK-NEXT: debug_value [[ARG]] |
| // CHECK-NEXT: [[ARG_COPY:%.*]] = copy_value [[ARG]] |
| // CHECK-NEXT: // function_ref |
| // CHECK-NEXT: [[FN:%.*]] = function_ref @_TFs21_arrayConditionalCastu0_rFGSax_GSqGSaq___ |
| // CHECK-NEXT: [[RESULT:%.*]] = apply [[FN]]<Any, S>([[ARG_COPY]]) : $@convention(thin) <τ_0_0, τ_0_1> (@owned Array<τ_0_0>) -> @owned Optional<Array<τ_0_1>> |
| // CHECK-NEXT: destroy_value [[ARG]] |
| // CHECK-NEXT: return [[RESULT]] |
| func array_downcast(array: [Any]) -> [S]? { |
| return array as? [S] |
| } |
| |
| extension S : Hashable { |
| var hashValue : Int { |
| return x + y |
| } |
| } |
| func ==(lhs: S, rhs: S) -> Bool { |
| return true |
| } |
| |
| // FIXME: This entrypoint name should not be bridging-specific |
| // CHECK-LABEL: sil hidden @_TF27collection_subtype_downcast13dict_downcastFT4dictGVs10DictionaryVS_1SP___GSqGS0_S1_Si__ : |
| // CHECK: bb0([[ARG:%.*]] : $Dictionary<S, Any>): |
| // CHECK-NEXT: debug_value [[ARG]] |
| // CHECK-NEXT: [[ARG_COPY:%.*]] = copy_value [[ARG]] |
| // CHECK-NEXT: // function_ref |
| // CHECK-NEXT: [[FN:%.*]] = function_ref @_TFs30_dictionaryDownCastConditionalu2_Rxs8Hashable0_S_rFGVs10Dictionaryxq__GSqGS0_q0_q1___ |
| // CHECK-NEXT: [[RESULT:%.*]] = apply [[FN]]<S, Any, S, Int>([[ARG_COPY]]) : $@convention(thin) <τ_0_0, τ_0_1, τ_0_2, τ_0_3 where τ_0_0 : Hashable, τ_0_2 : Hashable> (@owned Dictionary<τ_0_0, τ_0_1>) -> @owned Optional<Dictionary<τ_0_2, τ_0_3>> |
| // CHECK-NEXT: destroy_value [[ARG]] |
| // CHECK-NEXT: return [[RESULT]] |
| func dict_downcast(dict: [S: Any]) -> [S: Int]? { |
| return dict as? [S: Int] |
| } |
| |
| // It's not actually possible to test this for Sets independent of |
| // the bridging rules. |
