| // 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 @_TF24function_conversion_objc20convMetatypeToObjectFFCSo8NSObjectMS0_T_ |
| func convMetatypeToObject(_ f: @escaping (NSObject) -> NSObject.Type) { |
| // CHECK: function_ref @_TTRXFo_oCSo8NSObject_dXMTS__XFo_oS__oPs9AnyObject__ |
| // CHECK: partial_apply |
| let _: (NSObject) -> AnyObject = f |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [reabstraction_thunk] @_TTRXFo_oCSo8NSObject_dXMTS__XFo_oS__oPs9AnyObject__ : $@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 @_TF24function_conversion_objc31convExistentialMetatypeToObjectFFPS_9NSBurrito_PMPS0__T_ |
| func convExistentialMetatypeToObject(_ f: @escaping (NSBurrito) -> NSBurrito.Type) { |
| // CHECK: function_ref @_TTRXFo_oP24function_conversion_objc9NSBurrito__dXPMTPS0___XFo_oPS0___oPs9AnyObject__ |
| // CHECK: partial_apply |
| let _: (NSBurrito) -> AnyObject = f |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [reabstraction_thunk] @_TTRXFo_oP24function_conversion_objc9NSBurrito__dXPMTPS0___XFo_oPS0___oPs9AnyObject__ : $@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 @_TF24function_conversion_objc28convProtocolMetatypeToObjectFFT_MPS_9NSBurrito_T_ |
| func convProtocolMetatypeToObject(_ f: @escaping () -> NSBurrito.Protocol) { |
| // CHECK: function_ref @_TTRXFo__dXMtP24function_conversion_objc9NSBurrito__XFo__oCSo8Protocol_ |
| // CHECK: partial_apply |
| let _: () -> Protocol = f |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [reabstraction_thunk] @_TTRXFo__dXMtP24function_conversion_objc9NSBurrito__XFo__oCSo8Protocol_ : $@convention(thin) (@owned @callee_owned () -> @thin NSBurrito.Protocol) -> @owned Protocol |
| // CHECK: apply %0() : $@callee_owned () -> @thin NSBurrito.Protocol |
| // CHECK: objc_protocol #NSBurrito : $Protocol |
| // CHECK: strong_retain |
| // CHECK: return |
| |
| // ==== Representation conversions |
| |
| // CHECK-LABEL: sil hidden @_TF24function_conversion_objc11funcToBlockFFT_T_bT_T_ : $@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 @_TF24function_conversion_objc11blockToFuncFbT_T_FT_T_ : $@convention(thin) (@owned @convention(block) () -> ()) -> @owned @callee_owned () -> () |
| // CHECK: [[COPIED:%.*]] = copy_block %0 |
| // CHECK: [[THUNK:%.*]] = function_ref @_TTRXFdCb___XFo___ |
| // CHECK: [[FUNC:%.*]] = partial_apply [[THUNK]]([[COPIED]]) |
| // CHECK: return [[FUNC]] |
| func blockToFunc(_ x: @escaping @convention(block) () -> ()) -> () -> () { |
| return x |
| } |
| |
| // ==== Representation change + function type conversion |
| |
| // CHECK-LABEL: sil hidden @_TF24function_conversion_objc22blockToFuncExistentialFbT_SiFT_P_ : $@convention(thin) (@owned @convention(block) () -> Int) -> @owned @callee_owned () -> @out Any |
| // CHECK: function_ref @_TTRXFdCb__dSi_XFo__dSi_ |
| // CHECK: partial_apply |
| // CHECK: function_ref @_TTRXFo__dSi_XFo__iP__ |
| // CHECK: partial_apply |
| // CHECK: return |
| func blockToFuncExistential(_ x: @escaping @convention(block) () -> Int) -> () -> Any { |
| return x |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [reabstraction_thunk] @_TTRXFdCb__dSi_XFo__dSi_ : $@convention(thin) (@owned @convention(block) () -> Int) -> Int |
| |
| // CHECK-LABEL: sil shared [transparent] [reabstraction_thunk] @_TTRXFo__dSi_XFo__iP__ : $@convention(thin) (@owned @callee_owned () -> Int) -> @out Any |
| |
| // C function pointer conversions |
| |
| class A : NSObject {} |
| class B : A {} |
| |
| // CHECK-LABEL: sil hidden @_TF24function_conversion_objc18cFuncPtrConversionFcCS_1AT_cCS_1BT_ |
| 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 @_TF24function_conversion_objc19cFuncDeclConversionFT_cCS_1BT_ |
| func cFuncDeclConversion() -> @convention(c) (B) -> () { |
| // CHECK: function_ref @_TToF24function_conversion_objc8cFuncPtrFCS_1AT_ : $@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) () -> ()) -> ()'}} |
| } |