| // RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -O -emit-sil %s | FileCheck %s |
| // REQUIRES: objc_interop |
| |
| import objc_generics |
| |
| // CHECK-LABEL: sil [noinline] @_TF26cast_folding_objc_generics26testObjCGenericParamChange |
| // CHECK: upcast |
| // CHECK-NOT: int_trap |
| @inline(never) |
| public func testObjCGenericParamChange(_ a: GenericClass<NSMutableString>) -> GenericClass<NSString> { |
| return a as! GenericClass<NSString> |
| } |
| |
| // CHECK-LABEL: sil [noinline] @_TF26cast_folding_objc_generics34testObjCGenericParamChangeSubclass |
| // CHECK: unconditional_checked_cast |
| // CHECK-NOT: int_trap |
| @inline(never) |
| public func testObjCGenericParamChangeSubclass(_ a: GenericClass<NSMutableString>) -> GenericSubclass<NSString> { |
| return a as! GenericSubclass<NSString> |
| } |
| |
| // CHECK-LABEL: sil [noinline] @_TF26cast_folding_objc_generics36testObjCGenericParamChangeSuperclass |
| // CHECK: upcast |
| // CHECK-NOT: int_trap |
| @inline(never) |
| public func testObjCGenericParamChangeSuperclass(_ a: GenericSubclass<NSMutableString>) -> GenericClass<NSString> { |
| return a as! GenericClass<NSString> |
| } |
