| // RUN: %empty-directory(%t) |
| // RUN: %build-clang-importer-objc-overlays |
| |
| // RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk-nosource -I %t) -emit-silgen -enable-sil-ownership %s | %FileCheck %s |
| |
| // REQUIRES: objc_interop |
| |
| import Foundation |
| |
| // CHECK-LABEL: sil hidden @$S10objc_error20NSErrorError_erasureys0D0_pSo0C0CF : $@convention(thin) (@owned NSError) -> @owned Error { |
| // CHECK: bb0([[ERROR:%.*]] : @owned $NSError): |
| // CHECK: [[BORROWED_ERROR:%.*]] = begin_borrow [[ERROR]] |
| // CHECK: [[ERROR_COPY:%.*]] = copy_value [[BORROWED_ERROR]] |
| // CHECK: [[ERROR_TYPE:%.*]] = init_existential_ref [[ERROR_COPY]] : $NSError : $NSError, $Error |
| // CHECK: end_borrow [[BORROWED_ERROR]] from [[ERROR]] |
| // CHECK: destroy_value [[ERROR]] |
| // CHECK: return [[ERROR_TYPE]] |
| // CHECK: } // end sil function '$S10objc_error20NSErrorError_erasureys0D0_pSo0C0CF' |
| func NSErrorError_erasure(_ x: NSError) -> Error { |
| return x |
| } |
| |
| // CHECK-LABEL: sil hidden @$S10objc_error30NSErrorError_archetype_erasureys0D0_pxSo0C0CRbzlF : $@convention(thin) <T where T : NSError> (@owned T) -> @owned Error { |
| // CHECK: bb0([[ERROR:%.*]] : @owned $T): |
| // CHECK: [[BORROWED_ERROR:%.*]] = begin_borrow [[ERROR]] |
| // CHECK: [[ERROR_COPY:%.*]] = copy_value [[BORROWED_ERROR]] |
| // CHECK: [[T0:%.*]] = upcast [[ERROR_COPY]] : $T to $NSError |
| // CHECK: [[ERROR_TYPE:%.*]] = init_existential_ref [[T0]] : $NSError : $NSError, $Error |
| // CHECK: end_borrow [[BORROWED_ERROR]] from [[ERROR]] |
| // CHECK: destroy_value [[ERROR]] |
| // CHECK: return [[ERROR_TYPE]] |
| // CHECK: } // end sil function '$S10objc_error30NSErrorError_archetype_erasureys0D0_pxSo0C0CRbzlF' |
| func NSErrorError_archetype_erasure<T : NSError>(_ t: T) -> Error { |
| return t |
| } |
| |
| // Test patterns that are non-trivial, but irrefutable. SILGen shouldn't crash |
| // on these. |
| func test_doesnt_throw() { |
| do { |
| throw NSError(domain: "", code: 1, userInfo: [:]) |
| } catch is Error { // expected-warning {{'is' test is always true}} |
| } |
| |
| do { |
| throw NSError(domain: "", code: 1, userInfo: [:]) |
| } catch let e as NSError { // ok. |
| _ = e |
| } |
| } |
| |
| class ErrorClass: Error { |
| let _domain = "" |
| let _code = 0 |
| } |
| |
| // Class-to-NSError casts must be done as indirect casts since they require |
| // a representation change, and checked_cast_br currently doesn't allow that. |
| |
| // CHECK-LABEL: sil hidden @$S10objc_error20test_cast_to_nserroryyF |
| func test_cast_to_nserror() { |
| let e = ErrorClass() |
| |
| // CHECK: function_ref @$S10Foundation22_convertErrorToNSErrorySo0E0Cs0C0_pF |
| let nsCoerced = e as Error as NSError |
| |
| // CHECK: unconditional_checked_cast_addr AnyObject in {{%.*}} : $*AnyObject to NSError in {{%.*}} : $*NSError |
| let nsForcedCast = (e as AnyObject) as! NSError |
| |
| // CHECK: checked_cast_addr_br {{.*}} Error in {{%.*}} : $*Error to NSError in {{%.*}} : $*NSError, bb3, bb4 |
| do { |
| throw e |
| } catch _ as NSError { |
| |
| } |
| } |
| |
| // A class-constrained archetype may be NSError, so we can't use scalar casts |
| // in that case either. |
| // CHECK-LABEL: sil hidden @$S10objc_error28test_cast_to_class_archetype{{[_0-9a-zA-Z]*}}F |
| func test_cast_to_class_archetype<T: AnyObject>(_: T) { |
| // CHECK: unconditional_checked_cast_addr ErrorClass in {{%.*}} : $*ErrorClass to T in {{.*}} : $*T |
| let e = ErrorClass() |
| let forcedCast = e as! T |
| } |
| |
| // CHECK-LABEL: sil hidden @$S10objc_error15testAcceptError{{[_0-9a-zA-Z]*}}F |
| func testAcceptError(error: Error) { |
| // CHECK-NOT: return |
| // CHECK: function_ref @$S10Foundation22_convertErrorToNSErrorySo0E0Cs0C0_pF |
| acceptError(error) |
| } |
| |
| // CHECK-LABEL: sil hidden @$S10objc_error16testProduceError{{[_0-9a-zA-Z]*}}F |
| func testProduceError() -> Error { |
| // CHECK: function_ref @produceError : $@convention(c) () -> @autoreleased NSError |
| // CHECK: init_existential_ref {{.*}} : $NSError : $NSError, $Error |
| return produceError() |
| } |
| |
| // CHECK-LABEL: sil hidden @$S10objc_error24testProduceOptionalError{{[_0-9a-zA-Z]*}}F |
| func testProduceOptionalError() -> Error? { |
| // CHECK: function_ref @produceOptionalError |
| // CHECK: init_existential_ref {{.*}} : $NSError : $NSError, $Error |
| return produceOptionalError(); |
| } |
| |
| class MyNSError : NSError { |
| override init() { |
| super.init(domain: "MyNSError", code: 0, userInfo: [:]) |
| } |
| } |
| |
| // CHECK-LABEL: sil hidden @$S10objc_error14eraseMyNSError{{[_0-9a-zA-Z]*}}F : $@convention(thin) () -> @owned Error { |
| // CHECK: bb0: |
| // CHECK: [[NSERROR_SUBCLASS:%.*]] = apply {{.*}}({{.*}}) : $@convention(method) (@thick MyNSError.Type) -> @owned MyNSError |
| // CHECK: [[UPCAST:%.*]] = upcast [[NSERROR_SUBCLASS]] : $MyNSError to $NSError |
| // CHECK: [[EXISTENTIAL_REF:%.*]] = init_existential_ref [[UPCAST]] |
| // CHECK: [[BORROWED_EXISTENTIAL_REF:%.*]] = begin_borrow [[EXISTENTIAL_REF]] |
| // CHECK: [[COPY_BORROWED_EXISTENTIAL_REF:%.*]] = copy_value [[BORROWED_EXISTENTIAL_REF]] |
| // CHECK: end_borrow [[BORROWED_EXISTENTIAL_REF]] from [[EXISTENTIAL_REF]] |
| // CHECK: destroy_value [[EXISTENTIAL_REF]] |
| // CHECK: return [[COPY_BORROWED_EXISTENTIAL_REF]] |
| // CHECK: } // end sil function '$S10objc_error14eraseMyNSError{{[_0-9a-zA-Z]*}}F' |
| func eraseMyNSError() -> Error { |
| let x: Error = MyNSError() |
| return x |
| } |
| |
| // CHECK-LABEL: sil hidden @$S10objc_error25eraseFictionalServerErrors0F0_pyF |
| func eraseFictionalServerError() -> Error { |
| // CHECK-NOT: return |
| // CHECK: [[NSERROR:%[0-9]+]] = struct_extract {{.*}} : $FictionalServerError, #FictionalServerError._nsError |
| // CHECK: [[NSERROR_COPY:%.*]] = copy_value [[NSERROR]] |
| // CHECK: [[ERROR:%[0-9]+]] = init_existential_ref [[NSERROR_COPY]] |
| // CHECK: return [[ERROR]] |
| return FictionalServerError(.meltedDown) |
| } |
| // CHECK: } // end sil function '$S10objc_error25eraseFictionalServerErrors0F0_pyF' |
| |
| // SR-1562 |
| extension Error { |
| // CHECK-LABEL: sil hidden @$Ss5ErrorP10objc_errorE16convertToNSErrorSo0F0CyF |
| // CHECK: bb0([[SELF:%[0-9]+]] : @trivial $*Self) |
| func convertToNSError() -> NSError { |
| // CHECK: [[COPY:%.*]] = alloc_stack $Self |
| // CHECK: copy_addr [[SELF]] to [initialization] [[COPY]] |
| // CHECK: [[COPY2:%.*]] = alloc_stack $Self |
| // CHECK: copy_addr [[COPY]] to [initialization] [[COPY2]] |
| // CHECK: [[GET_EMBEDDED_FN:%[0-9]+]] = function_ref @$Ss24_getErrorEmbeddedNSErroryyXlSgxs0B0RzlF |
| // CHECK: [[EMBEDDED_RESULT_OPT:%[0-9]+]] = apply [[GET_EMBEDDED_FN]]<Self>([[COPY2]]) |
| // CHECK: switch_enum [[EMBEDDED_RESULT_OPT]] : $Optional<AnyObject>, |
| // CHECK-SAME: case #Optional.some!enumelt.1: [[SUCCESS:bb[0-9]+]], |
| // CHECK-SAME: case #Optional.none!enumelt: [[FAILURE:bb[0-9]+]] |
| |
| // CHECK: [[SUCCESS]]([[EMBEDDED_RESULT:%.*]] : @owned $AnyObject): |
| // CHECK: [[EMBEDDED_NSERROR:%[0-9]+]] = unchecked_ref_cast [[EMBEDDED_RESULT]] : $AnyObject to $NSError |
| // CHECK: [[ERROR:%[0-9]+]] = init_existential_ref [[EMBEDDED_NSERROR]] : $NSError : $NSError, $Error |
| // CHECK: destroy_addr [[COPY]] : $*Self |
| // CHECK: br [[CONTINUATION:bb[0-9]+]]([[ERROR]] : $Error) |
| |
| // CHECK: [[FAILURE]]: |
| // CHECK: [[ERROR_BOX:%[0-9]+]] = alloc_existential_box $Error, $Self |
| // CHECK: [[ERROR_PROJECTED:%[0-9]+]] = project_existential_box $Self in [[ERROR_BOX]] : $Error |
| // CHECK: copy_addr [take] [[COPY]] to [initialization] [[ERROR_PROJECTED]] : $*Self |
| // CHECK: br [[CONTINUATION]]([[ERROR_BOX]] : $Error) |
| |
| // CHECK: [[CONTINUATION]]([[ERROR_ARG:%[0-9]+]] : @owned $Error): |
| return self as NSError |
| } |
| } |
| |
| class Gizmoid : NSObject { |
| // CHECK-LABEL: sil hidden [thunk] @$S10objc_error7GizmoidC3fooACyt_tKcfcTo : $@convention(objc_method) (Optional<AutoreleasingUnsafeMutablePointer<Optional<NSError>>>, @owned Gizmoid) -> @owned Optional<Gizmoid> |
| @objc init(foo: ()) throws {} |
| } |