| // RUN: %target-swift-frontend -sdk %S/Inputs %s -I %S/Inputs -enable-source-import -emit-silgen -verify | %FileCheck %s |
| |
| import Foundation |
| |
| // REQUIRES: objc_interop |
| |
| // ==== Metatype to object conversions |
| |
| // CHECK-LABEL: sil hidden @_T024function_conversion_objc20convMetatypeToObjectySo8NSObjectCmADcF |
| func convMetatypeToObject(_ f: @escaping (NSObject) -> NSObject.Type) { |
| // CHECK: function_ref @_T0So8NSObjectCABXMTIxxd_AByXlIxxo_TR |
| // CHECK: partial_apply |
| let _: (NSObject) -> AnyObject = f |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [serializable] [reabstraction_thunk] @_T0So8NSObjectCABXMTIxxd_AByXlIxxo_TR : $@convention(thin) (@owned NSObject, @owned @callee_owned (@owned NSObject) -> @thick NSObject.Type) -> @owned AnyObject { |
| // CHECK: apply %1(%0) |
| // CHECK: thick_to_objc_metatype {{.*}} : $@thick NSObject.Type to $@objc_metatype NSObject.Type |
| // CHECK: objc_metatype_to_object {{.*}} : $@objc_metatype NSObject.Type to $AnyObject |
| // CHECK: return |
| |
| @objc protocol NSBurrito {} |
| |
| // CHECK-LABEL: sil hidden @_T024function_conversion_objc31convExistentialMetatypeToObjectyAA9NSBurrito_pXpAaC_pcF |
| func convExistentialMetatypeToObject(_ f: @escaping (NSBurrito) -> NSBurrito.Type) { |
| // CHECK: function_ref @_T024function_conversion_objc9NSBurrito_pAaB_pXmTIxxd_AaB_pyXlIxxo_TR |
| // CHECK: partial_apply |
| let _: (NSBurrito) -> AnyObject = f |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [serializable] [reabstraction_thunk] @_T024function_conversion_objc9NSBurrito_pAaB_pXmTIxxd_AaB_pyXlIxxo_TR : $@convention(thin) (@owned NSBurrito, @owned @callee_owned (@owned NSBurrito) -> @thick NSBurrito.Type) -> @owned AnyObject |
| // CHECK: apply %1(%0) |
| // CHECK: thick_to_objc_metatype {{.*}} : $@thick NSBurrito.Type to $@objc_metatype NSBurrito.Type |
| // CHECK: objc_existential_metatype_to_object {{.*}} : $@objc_metatype NSBurrito.Type to $AnyObject |
| // CHECK: return |
| |
| // CHECK-LABEL: sil hidden @_T024function_conversion_objc28convProtocolMetatypeToObjectyAA9NSBurrito_pmycF |
| func convProtocolMetatypeToObject(_ f: @escaping () -> NSBurrito.Protocol) { |
| // CHECK: function_ref @_T024function_conversion_objc9NSBurrito_pXMtIxd_So8ProtocolCIxo_TR |
| // CHECK: partial_apply |
| let _: () -> Protocol = f |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [serializable] [reabstraction_thunk] @_T024function_conversion_objc9NSBurrito_pXMtIxd_So8ProtocolCIxo_TR : $@convention(thin) (@owned @callee_owned () -> @thin NSBurrito.Protocol) -> @owned Protocol |
| // CHECK: apply %0() : $@callee_owned () -> @thin NSBurrito.Protocol |
| // CHECK: objc_protocol #NSBurrito : $Protocol |
| // CHECK: copy_value |
| // CHECK: return |
| |
| // ==== Representation conversions |
| |
| // CHECK-LABEL: sil hidden @_T024function_conversion_objc11funcToBlockyyXByycF : $@convention(thin) (@owned @callee_owned () -> ()) -> @owned @convention(block) () -> () |
| // CHECK: [[BLOCK_STORAGE:%.*]] = alloc_stack $@block_storage |
| // CHECK: [[BLOCK:%.*]] = init_block_storage_header [[BLOCK_STORAGE]] |
| // CHECK: [[COPY:%.*]] = copy_block [[BLOCK]] : $@convention(block) () -> () |
| // CHECK: return [[COPY]] |
| func funcToBlock(_ x: @escaping () -> ()) -> @convention(block) () -> () { |
| return x |
| } |
| |
| // CHECK-LABEL: sil hidden @_T024function_conversion_objc11blockToFuncyycyyXBF : $@convention(thin) (@owned @convention(block) () -> ()) -> @owned @callee_owned () -> () |
| // CHECK: bb0([[ARG:%.*]] : $@convention(block) () -> ()): |
| // CHECK: [[COPIED:%.*]] = copy_block [[ARG]] |
| // CHECK: [[BORROWED_COPIED:%.*]] = begin_borrow [[COPIED]] |
| // CHECK: [[COPIED_2:%.*]] = copy_value [[BORROWED_COPIED]] |
| // CHECK: [[THUNK:%.*]] = function_ref @_T0IyB_Ix_TR |
| // CHECK: [[FUNC:%.*]] = partial_apply [[THUNK]]([[COPIED_2]]) |
| // CHECK: end_borrow [[BORROWED_COPIED]] from [[COPIED]] |
| // CHECK: destroy_value [[COPIED]] |
| // CHECK: destroy_value [[ARG]] |
| // CHECK: return [[FUNC]] |
| func blockToFunc(_ x: @escaping @convention(block) () -> ()) -> () -> () { |
| return x |
| } |
| |
| // ==== Representation change + function type conversion |
| |
| // CHECK-LABEL: sil hidden @_T024function_conversion_objc22blockToFuncExistentialypycSiyXBF : $@convention(thin) (@owned @convention(block) () -> Int) -> @owned @callee_owned () -> @out Any |
| // CHECK: function_ref @_T0SiIyBd_SiIxd_TR |
| // CHECK: partial_apply |
| // CHECK: function_ref @_T0SiIxd_ypIxr_TR |
| // CHECK: partial_apply |
| // CHECK: return |
| func blockToFuncExistential(_ x: @escaping @convention(block) () -> Int) -> () -> Any { |
| return x |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [serializable] [reabstraction_thunk] @_T0SiIyBd_SiIxd_TR : $@convention(thin) (@owned @convention(block) () -> Int) -> Int |
| |
| // CHECK-LABEL: sil shared [transparent] [serializable] [reabstraction_thunk] @_T0SiIxd_ypIxr_TR : $@convention(thin) (@owned @callee_owned () -> Int) -> @out Any |
| |
| // C function pointer conversions |
| |
| class A : NSObject {} |
| class B : A {} |
| |
| // CHECK-LABEL: sil hidden @_T024function_conversion_objc18cFuncPtrConversionyAA1BCXCyAA1ACXCF |
| func cFuncPtrConversion(_ x: @escaping @convention(c) (A) -> ()) -> @convention(c) (B) -> () { |
| // CHECK: convert_function %0 : $@convention(c) (A) -> () to $@convention(c) (B) -> () |
| // CHECK: return |
| return x |
| } |
| |
| func cFuncPtr(_ a: A) {} |
| |
| // CHECK-LABEL: sil hidden @_T024function_conversion_objc19cFuncDeclConversionyAA1BCXCyF |
| func cFuncDeclConversion() -> @convention(c) (B) -> () { |
| // CHECK: function_ref @_T024function_conversion_objc8cFuncPtryAA1ACFTo : $@convention(c) (A) -> () |
| // CHECK: convert_function %0 : $@convention(c) (A) -> () to $@convention(c) (B) -> () |
| // CHECK: return |
| return cFuncPtr |
| } |
| |
| func cFuncPtrConversionUnsupported(_ x: @escaping @convention(c) (@convention(block) () -> ()) -> ()) |
| -> @convention(c) (@convention(c) () -> ()) -> () { |
| return x // expected-error{{C function pointer signature '@convention(c) (@convention(block) () -> ()) -> ()' is not compatible with expected type '@convention(c) (@convention(c) () -> ()) -> ()'}} |
| } |