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112 lines
5.7 KiB
Swift
112 lines
5.7 KiB
Swift
// RUN: %target-swift-frontend -sdk %S/Inputs %s -I %S/Inputs -enable-source-import -emit-silgen -verify | FileCheck %s
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import Foundation
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// REQUIRES: objc_interop
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// ==== Metatype to object conversions
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// CHECK-LABEL: sil hidden @_TF24function_conversion_objc20convMetatypeToObjectFFCSo8NSObjectMS0_T_
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func convMetatypeToObject(_ f: (NSObject) -> NSObject.Type) {
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// CHECK: function_ref @_TTRXFo_oCSo8NSObject_dXMTS__XFo_oS__oPs9AnyObject__
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// CHECK: partial_apply
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let _: (NSObject) -> AnyObject = f
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}
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// 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 {
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// CHECK: apply %1(%0)
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// CHECK: thick_to_objc_metatype {{.*}} : $@thick NSObject.Type to $@objc_metatype NSObject.Type
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// CHECK: objc_metatype_to_object {{.*}} : $@objc_metatype NSObject.Type to $AnyObject
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// CHECK: return
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@objc protocol NSBurrito {}
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// CHECK-LABEL: sil hidden @_TF24function_conversion_objc31convExistentialMetatypeToObjectFFPS_9NSBurrito_PMPS0__T_
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func convExistentialMetatypeToObject(_ f: (NSBurrito) -> NSBurrito.Type) {
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// CHECK: function_ref @_TTRXFo_oP24function_conversion_objc9NSBurrito__dXPMTPS0___XFo_oPS0___oPs9AnyObject__
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// CHECK: partial_apply
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let _: (NSBurrito) -> AnyObject = f
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}
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// 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
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// CHECK: apply %1(%0)
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// CHECK: thick_to_objc_metatype {{.*}} : $@thick NSBurrito.Type to $@objc_metatype NSBurrito.Type
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// CHECK: objc_existential_metatype_to_object {{.*}} : $@objc_metatype NSBurrito.Type to $AnyObject
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// CHECK: return
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// CHECK-LABEL: sil hidden @_TF24function_conversion_objc28convProtocolMetatypeToObjectFFT_MPS_9NSBurrito_T_
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func convProtocolMetatypeToObject(_ f: () -> NSBurrito.Protocol) {
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// CHECK: function_ref @_TTRXFo__dXMtP24function_conversion_objc9NSBurrito__XFo__oCSo8Protocol_
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// CHECK: partial_apply
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let _: () -> Protocol = f
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}
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// CHECK-LABEL: sil shared [transparent] [reabstraction_thunk] @_TTRXFo__dXMtP24function_conversion_objc9NSBurrito__XFo__oCSo8Protocol_ : $@convention(thin) (@owned @callee_owned () -> @thin NSBurrito.Protocol) -> @owned Protocol
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// CHECK: apply %0() : $@callee_owned () -> @thin NSBurrito.Protocol
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// CHECK: objc_protocol #NSBurrito : $Protocol
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// CHECK: strong_retain
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// CHECK: return
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// ==== Representation conversions
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// CHECK-LABEL: sil hidden @_TF24function_conversion_objc11funcToBlockFFT_T_bT_T_ : $@convention(thin) (@owned @callee_owned () -> ()) -> @owned @convention(block) () -> ()
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// CHECK: [[BLOCK_STORAGE:%.*]] = alloc_stack $@block_storage
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// CHECK: [[BLOCK:%.*]] = init_block_storage_header [[BLOCK_STORAGE]]
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// CHECK: [[COPY:%.*]] = copy_block [[BLOCK]] : $@convention(block) () -> ()
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// CHECK: return [[COPY]]
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func funcToBlock(_ x: () -> ()) -> @convention(block) () -> () {
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return x
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}
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// CHECK-LABEL: sil hidden @_TF24function_conversion_objc11blockToFuncFbT_T_FT_T_ : $@convention(thin) (@owned @convention(block) () -> ()) -> @owned @callee_owned () -> ()
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// CHECK: [[COPIED:%.*]] = copy_block %0
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// CHECK: [[THUNK:%.*]] = function_ref @_TTRXFdCb___XFo___
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// CHECK: [[FUNC:%.*]] = partial_apply [[THUNK]]([[COPIED]])
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// CHECK: return [[FUNC]]
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func blockToFunc(_ x: @convention(block) () -> ()) -> () -> () {
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return x
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}
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// ==== Representation change + function type conversion
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// CHECK-LABEL: sil hidden @_TF24function_conversion_objc22blockToFuncExistentialFbT_SiFT_P_ : $@convention(thin) (@owned @convention(block) () -> Int) -> @owned @callee_owned () -> @out protocol<>
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// CHECK: function_ref @_TTRXFdCb__dSi_XFo__dSi_
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// CHECK: partial_apply
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// CHECK: function_ref @_TTRXFo__dSi_XFo__iP__
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// CHECK: partial_apply
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// CHECK: return
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func blockToFuncExistential(_ x: @convention(block) () -> Int) -> () -> Any {
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return x
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}
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// CHECK-LABEL: sil shared [transparent] [reabstraction_thunk] @_TTRXFdCb__dSi_XFo__dSi_ : $@convention(thin) (@owned @convention(block) () -> Int) -> Int
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// CHECK-LABEL: sil shared [transparent] [reabstraction_thunk] @_TTRXFo__dSi_XFo__iP__ : $@convention(thin) (@owned @callee_owned () -> Int) -> @out protocol<>
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// C function pointer conversions
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class A : NSObject {}
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class B : A {}
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// CHECK-LABEL: sil hidden @_TF24function_conversion_objc18cFuncPtrConversionFcCS_1AT_cCS_1BT_
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func cFuncPtrConversion(_ x: @convention(c) (A) -> ()) -> @convention(c) (B) -> () {
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// CHECK: convert_function %0 : $@convention(c) (A) -> () to $@convention(c) (B) -> ()
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// CHECK: return
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return x
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}
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func cFuncPtr(_ a: A) {}
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// CHECK-LABEL: sil hidden @_TF24function_conversion_objc19cFuncDeclConversionFT_cCS_1BT_
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func cFuncDeclConversion() -> @convention(c) (B) -> () {
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// CHECK: function_ref @_TToF24function_conversion_objc8cFuncPtrFCS_1AT_ : $@convention(c) (A) -> ()
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// CHECK: convert_function %0 : $@convention(c) (A) -> () to $@convention(c) (B) -> ()
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// CHECK: return
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return cFuncPtr
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}
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func cFuncPtrConversionUnsupported(_ x: @convention(c) (@convention(block) () -> ()) -> ())
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-> @convention(c) (@convention(c) () -> ()) -> () {
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return x // expected-error{{C function pointer signature '@convention(c) (@convention(block) () -> ()) -> ()' is not compatible with expected type '@convention(c) (@convention(c) () -> ()) -> ()'}}
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}
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