blob: eac469126c07fdc1157f329d458af5241a0bbcaf [file] [log] [blame]
// RUN: %target-swift-emit-silgen -module-name protocols %s | %FileCheck %s
//===----------------------------------------------------------------------===//
// Calling Existential Subscripts
//===----------------------------------------------------------------------===//
protocol SubscriptableGet {
subscript(a : Int) -> Int { get }
}
protocol SubscriptableGetSet {
subscript(a : Int) -> Int { get set }
}
var subscriptableGet : SubscriptableGet
var subscriptableGetSet : SubscriptableGetSet
func use_subscript_rvalue_get(_ i : Int) -> Int {
return subscriptableGet[i]
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_subscript_rvalue_get
// CHECK: bb0(%0 : $Int):
// CHECK: [[GLOB:%[0-9]+]] = global_addr @$s9protocols16subscriptableGetAA013SubscriptableC0_pvp : $*SubscriptableGet
// CHECK: [[READ:%.*]] = begin_access [read] [dynamic] [[GLOB]] : $*SubscriptableGet
// CHECK: [[PROJ:%[0-9]+]] = open_existential_addr immutable_access [[READ]] : $*SubscriptableGet to $*[[OPENED:@opened(.*) SubscriptableGet]]
// CHECK: [[ALLOCSTACK:%[0-9]+]] = alloc_stack $[[OPENED]]
// CHECK: copy_addr [[PROJ]] to [initialization] [[ALLOCSTACK]] : $*[[OPENED]]
// CHECK-NEXT: end_access [[READ]] : $*SubscriptableGet
// CHECK-NEXT: [[TMP:%.*]] = alloc_stack
// CHECK-NEXT: copy_addr [[ALLOCSTACK]] to [initialization] [[TMP]]
// CHECK-NEXT: [[METH:%[0-9]+]] = witness_method $[[OPENED]], #SubscriptableGet.subscript!getter.1
// CHECK-NEXT: [[RESULT:%[0-9]+]] = apply [[METH]]<[[OPENED]]>(%0, [[TMP]])
// CHECK-NEXT: destroy_addr [[TMP]]
// CHECK-NEXT: destroy_addr [[ALLOCSTACK]]
// CHECK-NEXT: dealloc_stack [[TMP]]
// CHECK-NEXT: dealloc_stack [[ALLOCSTACK]] : $*[[OPENED]]
// CHECK-NEXT: return [[RESULT]]
func use_subscript_lvalue_get(_ i : Int) -> Int {
return subscriptableGetSet[i]
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_subscript_lvalue_get
// CHECK: bb0(%0 : $Int):
// CHECK: [[GLOB:%[0-9]+]] = global_addr @$s9protocols19subscriptableGetSetAA013SubscriptablecD0_pvp : $*SubscriptableGetSet
// CHECK: [[READ:%.*]] = begin_access [read] [dynamic] [[GLOB]] : $*SubscriptableGetSet
// CHECK: [[PROJ:%[0-9]+]] = open_existential_addr immutable_access [[READ]] : $*SubscriptableGetSet to $*[[OPENED:@opened(.*) SubscriptableGetSet]]
// CHECK: [[ALLOCSTACK:%[0-9]+]] = alloc_stack $[[OPENED]]
// CHECK: copy_addr [[PROJ]] to [initialization] [[ALLOCSTACK]] : $*[[OPENED]]
// CHECK-NEXT: [[METH:%[0-9]+]] = witness_method $[[OPENED]], #SubscriptableGetSet.subscript!getter.1
// CHECK-NEXT: [[RESULT:%[0-9]+]] = apply [[METH]]<[[OPENED]]>(%0, [[ALLOCSTACK]])
// CHECK-NEXT: destroy_addr [[ALLOCSTACK]] : $*[[OPENED]]
// CHECK-NEXT: end_access [[READ]] : $*SubscriptableGetSet
// CHECK-NEXT: dealloc_stack [[ALLOCSTACK]] : $*[[OPENED]]
// CHECK-NEXT: return [[RESULT]]
func use_subscript_lvalue_set(_ i : Int) {
subscriptableGetSet[i] = i
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_subscript_lvalue_set
// CHECK: bb0(%0 : $Int):
// CHECK: [[GLOB:%[0-9]+]] = global_addr @$s9protocols19subscriptableGetSetAA013SubscriptablecD0_pvp : $*SubscriptableGetSet
// CHECK: [[READ:%.*]] = begin_access [modify] [dynamic] [[GLOB]] : $*SubscriptableGetSet
// CHECK: [[PROJ:%[0-9]+]] = open_existential_addr mutable_access [[READ]] : $*SubscriptableGetSet to $*[[OPENED:@opened(.*) SubscriptableGetSet]]
// CHECK-NEXT: [[METH:%[0-9]+]] = witness_method $[[OPENED]], #SubscriptableGetSet.subscript!setter.1
// CHECK-NEXT: apply [[METH]]<[[OPENED]]>(%0, %0, [[PROJ]])
//===----------------------------------------------------------------------===//
// Calling Archetype Subscripts
//===----------------------------------------------------------------------===//
func use_subscript_archetype_rvalue_get<T : SubscriptableGet>(_ generic : T, idx : Int) -> Int {
return generic[idx]
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_subscript_archetype_rvalue_get
// CHECK: bb0(%0 : $*T, %1 : $Int):
// CHECK: [[STACK:%[0-9]+]] = alloc_stack $T
// CHECK: copy_addr %0 to [initialization] [[STACK]]
// CHECK: [[METH:%[0-9]+]] = witness_method $T, #SubscriptableGet.subscript!getter.1
// CHECK-NEXT: apply [[METH]]<T>(%1, [[STACK]])
// CHECK-NEXT: destroy_addr [[STACK]] : $*T
// CHECK-NEXT: dealloc_stack [[STACK]] : $*T
// CHECK: } // end sil function '${{.*}}use_subscript_archetype_rvalue_get
func use_subscript_archetype_lvalue_get<T : SubscriptableGetSet>(_ generic: inout T, idx : Int) -> Int {
return generic[idx]
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_subscript_archetype_lvalue_get
// CHECK: bb0(%0 : $*T, %1 : $Int):
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] %0 : $*T
// CHECK: [[GUARANTEEDSTACK:%[0-9]+]] = alloc_stack $T
// CHECK: copy_addr [[READ]] to [initialization] [[GUARANTEEDSTACK]] : $*T
// CHECK: [[METH:%[0-9]+]] = witness_method $T, #SubscriptableGetSet.subscript!getter.1
// CHECK-NEXT: [[APPLYRESULT:%[0-9]+]] = apply [[METH]]<T>(%1, [[GUARANTEEDSTACK]])
// CHECK-NEXT: destroy_addr [[GUARANTEEDSTACK]] : $*T
// CHECK-NEXT: end_access [[READ]]
// CHECK-NEXT: dealloc_stack [[GUARANTEEDSTACK]] : $*T
// CHECK: return [[APPLYRESULT]]
func use_subscript_archetype_lvalue_set<T : SubscriptableGetSet>(_ generic: inout T, idx : Int) {
generic[idx] = idx
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_subscript_archetype_lvalue_set
// CHECK: bb0(%0 : $*T, %1 : $Int):
// CHECK: [[WRITE:%.*]] = begin_access [modify] [unknown] %0 : $*T
// CHECK: [[METH:%[0-9]+]] = witness_method $T, #SubscriptableGetSet.subscript!setter.1
// CHECK-NEXT: apply [[METH]]<T>(%1, %1, [[WRITE]])
//===----------------------------------------------------------------------===//
// Calling Existential Properties
//===----------------------------------------------------------------------===//
protocol PropertyWithGetter {
var a : Int { get }
}
protocol PropertyWithGetterSetter {
var b : Int { get set }
}
var propertyGet : PropertyWithGetter
var propertyGetSet : PropertyWithGetterSetter
func use_property_rvalue_get() -> Int {
return propertyGet.a
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_property_rvalue_get
// CHECK: [[GLOB:%[0-9]+]] = global_addr @$s9protocols11propertyGetAA18PropertyWithGetter_pvp : $*PropertyWithGetter
// CHECK: [[READ:%.*]] = begin_access [read] [dynamic] [[GLOB]] : $*PropertyWithGetter
// CHECK: [[PROJ:%[0-9]+]] = open_existential_addr immutable_access [[READ]] : $*PropertyWithGetter to $*[[OPENED:@opened(.*) PropertyWithGetter]]
// CHECK: [[COPY:%.*]] = alloc_stack $[[OPENED]]
// CHECK-NEXT: copy_addr [[PROJ]] to [initialization] [[COPY]] : $*[[OPENED]]
// CHECK-NEXT: end_access [[READ]] : $*PropertyWithGetter
// CHECK: [[BORROW:%.*]] = alloc_stack $[[OPENED]]
// CHECK-NEXT: copy_addr [[COPY]] to [initialization] [[BORROW]] : $*[[OPENED]]
// CHECK-NEXT: [[METH:%[0-9]+]] = witness_method $[[OPENED]], #PropertyWithGetter.a!getter.1
// CHECK-NEXT: apply [[METH]]<[[OPENED]]>([[BORROW]])
func use_property_lvalue_get() -> Int {
return propertyGetSet.b
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_property_lvalue_get
// CHECK: [[GLOB:%[0-9]+]] = global_addr @$s9protocols14propertyGetSetAA24PropertyWithGetterSetter_pvp : $*PropertyWithGetterSetter
// CHECK: [[READ:%.*]] = begin_access [read] [dynamic] [[GLOB]] : $*PropertyWithGetterSetter
// CHECK: [[PROJ:%[0-9]+]] = open_existential_addr immutable_access [[READ]] : $*PropertyWithGetterSetter to $*[[OPENED:@opened(.*) PropertyWithGetterSetter]]
// CHECK: [[STACK:%[0-9]+]] = alloc_stack $[[OPENED]]
// CHECK: copy_addr [[PROJ]] to [initialization] [[STACK]]
// CHECK-NEXT: [[METH:%[0-9]+]] = witness_method $[[OPENED]], #PropertyWithGetterSetter.b!getter.1
// CHECK-NEXT: apply [[METH]]<[[OPENED]]>([[STACK]])
func use_property_lvalue_set(_ x : Int) {
propertyGetSet.b = x
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_property_lvalue_set
// CHECK: bb0(%0 : $Int):
// CHECK: [[GLOB:%[0-9]+]] = global_addr @$s9protocols14propertyGetSetAA24PropertyWithGetterSetter_pvp : $*PropertyWithGetterSetter
// CHECK: [[READ:%.*]] = begin_access [modify] [dynamic] [[GLOB]] : $*PropertyWithGetterSetter
// CHECK: [[PROJ:%[0-9]+]] = open_existential_addr mutable_access [[READ]] : $*PropertyWithGetterSetter to $*[[OPENED:@opened(.*) PropertyWithGetterSetter]]
// CHECK-NEXT: [[METH:%[0-9]+]] = witness_method $[[OPENED]], #PropertyWithGetterSetter.b!setter.1
// CHECK-NEXT: apply [[METH]]<[[OPENED]]>(%0, [[PROJ]])
//===----------------------------------------------------------------------===//
// Calling Archetype Properties
//===----------------------------------------------------------------------===//
func use_property_archetype_rvalue_get<T : PropertyWithGetter>(_ generic : T) -> Int {
return generic.a
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_property_archetype_rvalue_get
// CHECK: bb0(%0 : $*T):
// CHECK: [[STACK:%[0-9]+]] = alloc_stack $T
// CHECK: copy_addr %0 to [initialization] [[STACK]]
// CHECK: [[METH:%[0-9]+]] = witness_method $T, #PropertyWithGetter.a!getter.1
// CHECK-NEXT: apply [[METH]]<T>([[STACK]])
// CHECK-NEXT: destroy_addr [[STACK]]
// CHECK-NEXT: dealloc_stack [[STACK]]
// CHECK: } // end sil function '{{.*}}use_property_archetype_rvalue_get
func use_property_archetype_lvalue_get<T : PropertyWithGetterSetter>(_ generic : T) -> Int {
return generic.b
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_property_archetype_lvalue_get
// CHECK: bb0(%0 : $*T):
// CHECK: [[STACK:%[0-9]+]] = alloc_stack $T
// CHECK: copy_addr %0 to [initialization] [[STACK]] : $*T
// CHECK: [[METH:%[0-9]+]] = witness_method $T, #PropertyWithGetterSetter.b!getter.1
// CHECK-NEXT: apply [[METH]]<T>([[STACK]])
// CHECK-NEXT: destroy_addr [[STACK]] : $*T
// CHECK-NEXT: dealloc_stack [[STACK]] : $*T
// CHECK: } // end sil function '${{.*}}use_property_archetype_lvalue_get
func use_property_archetype_lvalue_set<T : PropertyWithGetterSetter>(_ generic: inout T, v : Int) {
generic.b = v
}
// CHECK-LABEL: sil hidden [ossa] @{{.*}}use_property_archetype_lvalue_set
// CHECK: bb0(%0 : $*T, %1 : $Int):
// CHECK: [[WRITE:%.*]] = begin_access [modify] [unknown] %0 : $*T
// CHECK: [[METH:%[0-9]+]] = witness_method $T, #PropertyWithGetterSetter.b!setter.1
// CHECK-NEXT: apply [[METH]]<T>(%1, [[WRITE]])
//===----------------------------------------------------------------------===//
// Calling Initializers
//===----------------------------------------------------------------------===//
protocol Initializable {
init(int: Int)
}
// CHECK-LABEL: sil hidden [ossa] @$s9protocols27use_initializable_archetype{{[_0-9a-zA-Z]*}}F
func use_initializable_archetype<T: Initializable>(_ t: T, i: Int) {
// CHECK: [[T_RESULT:%[0-9]+]] = alloc_stack $T
// CHECK: [[T_META:%[0-9]+]] = metatype $@thick T.Type
// CHECK: [[T_INIT:%[0-9]+]] = witness_method $T, #Initializable.init!allocator.1 : {{.*}} : $@convention(witness_method: Initializable) <τ_0_0 where τ_0_0 : Initializable> (Int, @thick τ_0_0.Type) -> @out τ_0_0
// CHECK: [[T_RESULT_ADDR:%[0-9]+]] = apply [[T_INIT]]<T>([[T_RESULT]], %1, [[T_META]]) : $@convention(witness_method: Initializable) <τ_0_0 where τ_0_0 : Initializable> (Int, @thick τ_0_0.Type) -> @out τ_0_0
// CHECK: destroy_addr [[T_RESULT]] : $*T
// CHECK: dealloc_stack [[T_RESULT]] : $*T
// CHECK: [[RESULT:%[0-9]+]] = tuple ()
// CHECK: return [[RESULT]] : $()
T(int: i)
}
// CHECK: sil hidden [ossa] @$s9protocols29use_initializable_existential{{[_0-9a-zA-Z]*}}F
func use_initializable_existential(_ im: Initializable.Type, i: Int) {
// CHECK: bb0([[IM:%[0-9]+]] : $@thick Initializable.Type, [[I:%[0-9]+]] : $Int):
// CHECK: [[ARCHETYPE_META:%[0-9]+]] = open_existential_metatype [[IM]] : $@thick Initializable.Type to $@thick (@opened([[N:".*"]]) Initializable).Type
// CHECK: [[TEMP_VALUE:%[0-9]+]] = alloc_stack $Initializable
// CHECK: [[INIT_WITNESS:%[0-9]+]] = witness_method $@opened([[N]]) Initializable, #Initializable.init!allocator.1 : {{.*}}, [[ARCHETYPE_META]]{{.*}} : $@convention(witness_method: Initializable) <τ_0_0 where τ_0_0 : Initializable> (Int, @thick τ_0_0.Type) -> @out τ_0_0
// CHECK: [[TEMP_ADDR:%[0-9]+]] = init_existential_addr [[TEMP_VALUE]] : $*Initializable, $@opened([[N]]) Initializable
// CHECK: [[INIT_RESULT:%[0-9]+]] = apply [[INIT_WITNESS]]<@opened([[N]]) Initializable>([[TEMP_ADDR]], [[I]], [[ARCHETYPE_META]]) : $@convention(witness_method: Initializable) <τ_0_0 where τ_0_0 : Initializable> (Int, @thick τ_0_0.Type) -> @out τ_0_0
// CHECK: destroy_addr [[TEMP_VALUE]] : $*Initializable
// CHECK: dealloc_stack [[TEMP_VALUE]] : $*Initializable
im.init(int: i)
// CHECK: [[RESULT:%[0-9]+]] = tuple ()
// CHECK: return [[RESULT]] : $()
}
//===----------------------------------------------------------------------===//
// Protocol conformance and witness table generation
//===----------------------------------------------------------------------===//
class ClassWithGetter : PropertyWithGetter {
var a: Int {
get {
return 42
}
}
}
// Make sure we are generating a protocol witness that calls the class method on
// ClassWithGetter.
// CHECK-LABEL: sil private [transparent] [thunk] [ossa] @$s9protocols15ClassWithGetterCAA08PropertycD0A2aDP1aSivgTW : $@convention(witness_method: PropertyWithGetter) (@in_guaranteed ClassWithGetter) -> Int {
// CHECK: bb0([[C:%.*]] : $*ClassWithGetter):
// CHECK-NEXT: [[CCOPY_LOADED:%.*]] = load_borrow %0
// CHECK-NEXT: [[FUN:%.*]] = class_method [[CCOPY_LOADED]] : $ClassWithGetter, #ClassWithGetter.a!getter.1 : (ClassWithGetter) -> () -> Int, $@convention(method) (@guaranteed ClassWithGetter) -> Int
// CHECK-NEXT: apply [[FUN]]([[CCOPY_LOADED]])
// CHECK-NEXT: end_borrow [[CCOPY_LOADED]]
// CHECK-NEXT: return
class ClassWithGetterSetter : PropertyWithGetterSetter, PropertyWithGetter {
var a: Int {
get {
return 1
}
set {}
}
var b: Int {
get {
return 2
}
set {}
}
}
// CHECK-LABEL: sil private [transparent] [thunk] [ossa] @$s9protocols21ClassWithGetterSetterCAA08PropertycdE0A2aDP1bSivgTW : $@convention(witness_method: PropertyWithGetterSetter) (@in_guaranteed ClassWithGetterSetter) -> Int {
// CHECK: bb0([[C:%.*]] : $*ClassWithGetterSetter):
// CHECK-NEXT: [[CCOPY_LOADED:%.*]] = load_borrow %0
// CHECK-NEXT: [[FUN:%.*]] = class_method [[CCOPY_LOADED]] : $ClassWithGetterSetter, #ClassWithGetterSetter.b!getter.1 : (ClassWithGetterSetter) -> () -> Int, $@convention(method) (@guaranteed ClassWithGetterSetter) -> Int
// CHECK-NEXT: apply [[FUN]]([[CCOPY_LOADED]])
// CHECK-NEXT: end_borrow [[CCOPY_LOADED]]
// CHECK-NEXT: return
// Stored variables fulfilling property requirements
//
class ClassWithStoredProperty : PropertyWithGetter {
var a : Int = 0
// Make sure that accesses go through the generated accessors for classes.
func methodUsingProperty() -> Int {
return a
}
// CHECK-LABEL: sil hidden [ossa] @$s9protocols23ClassWithStoredPropertyC011methodUsingE0SiyF
// CHECK: bb0([[ARG:%.*]] : @guaranteed $ClassWithStoredProperty):
// CHECK-NEXT: debug_value [[ARG]]
// CHECK-NOT: copy_value
// CHECK-NEXT: [[FUN:%.*]] = class_method [[ARG]] : $ClassWithStoredProperty, #ClassWithStoredProperty.a!getter.1 : (ClassWithStoredProperty) -> () -> Int, $@convention(method) (@guaranteed ClassWithStoredProperty) -> Int
// CHECK-NEXT: [[RESULT:%.*]] = apply [[FUN]]([[ARG]])
// CHECK-NOT: destroy_value
// CHECK-NEXT: return [[RESULT]] : $Int
}
struct StructWithStoredProperty : PropertyWithGetter {
var a : Int
// Make sure that accesses aren't going through the generated accessors.
func methodUsingProperty() -> Int {
return a
}
// CHECK-LABEL: sil hidden [ossa] @$s9protocols24StructWithStoredPropertyV011methodUsingE0SiyF
// CHECK: bb0(%0 : $StructWithStoredProperty):
// CHECK-NEXT: debug_value %0
// CHECK-NEXT: %2 = struct_extract %0 : $StructWithStoredProperty, #StructWithStoredProperty.a
// CHECK-NEXT: return %2 : $Int
}
// Make sure that we generate direct function calls for out struct protocol
// witness since structs don't do virtual calls for methods.
//
// *NOTE* Even though at first glance the copy_addr looks like a leak
// here, StructWithStoredProperty is a trivial struct implying that no
// leak is occurring. See the test with StructWithStoredClassProperty
// that makes sure in such a case we don't leak. This is due to the
// thunking code being too dumb but it is harmless to program
// correctness.
//
// CHECK-LABEL: sil private [transparent] [thunk] [ossa] @$s9protocols24StructWithStoredPropertyVAA0eC6GetterA2aDP1aSivgTW : $@convention(witness_method: PropertyWithGetter) (@in_guaranteed StructWithStoredProperty) -> Int {
// CHECK: bb0([[C:%.*]] : $*StructWithStoredProperty):
// CHECK-NEXT: [[CCOPY_LOADED:%.*]] = load [trivial] [[C]]
// CHECK-NEXT: function_ref
// CHECK-NEXT: [[FUN:%.*]] = function_ref @$s9protocols24StructWithStoredPropertyV1aSivg : $@convention(method) (StructWithStoredProperty) -> Int
// CHECK-NEXT: apply [[FUN]]([[CCOPY_LOADED]])
// CHECK-NEXT: return
class C {}
// Make sure that if the getter has a class property, we pass it in
// in_guaranteed and don't leak.
struct StructWithStoredClassProperty : PropertyWithGetter {
var a : Int
var c: C = C()
// Make sure that accesses aren't going through the generated accessors.
func methodUsingProperty() -> Int {
return a
}
// CHECK-LABEL: sil hidden [ossa] @$s9protocols29StructWithStoredClassPropertyV011methodUsingF0SiyF
// CHECK: bb0(%0 : @guaranteed $StructWithStoredClassProperty):
// CHECK-NEXT: debug_value %0
// CHECK-NEXT: %2 = struct_extract %0 : $StructWithStoredClassProperty, #StructWithStoredClassProperty.a
// CHECK-NEXT: return %2 : $Int
}
// CHECK-LABEL: sil private [transparent] [thunk] [ossa] @$s9protocols29StructWithStoredClassPropertyVAA0fC6GetterA2aDP1aSivgTW : $@convention(witness_method: PropertyWithGetter) (@in_guaranteed StructWithStoredClassProperty) -> Int {
// CHECK: bb0([[C:%.*]] : $*StructWithStoredClassProperty):
// CHECK-NEXT: [[CCOPY_LOADED:%.*]] = load_borrow [[C]]
// CHECK-NEXT: function_ref
// CHECK-NEXT: [[FUN:%.*]] = function_ref @$s9protocols29StructWithStoredClassPropertyV1aSivg : $@convention(method) (@guaranteed StructWithStoredClassProperty) -> Int
// CHECK-NEXT: apply [[FUN]]([[CCOPY_LOADED]])
// CHECK-NEXT: end_borrow [[CCOPY_LOADED]]
// CHECK-NEXT: return
// rdar://22676810
protocol ExistentialProperty {
var p: PropertyWithGetterSetter { get set }
}
func testExistentialPropertyRead<T: ExistentialProperty>(_ t: inout T) {
let b = t.p.b
}
// CHECK-LABEL: sil hidden [ossa] @$s9protocols27testExistentialPropertyRead{{[_0-9a-zA-Z]*}}F
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] %0 : $*T
// CHECK: [[P_TEMP:%.*]] = alloc_stack $PropertyWithGetterSetter
// CHECK: [[T_TEMP:%.*]] = alloc_stack $T
// CHECK: copy_addr [[READ]] to [initialization] [[T_TEMP]] : $*T
// CHECK: [[P_GETTER:%.*]] = witness_method $T, #ExistentialProperty.p!getter.1 :
// CHECK-NEXT: apply [[P_GETTER]]<T>([[P_TEMP]], [[T_TEMP]])
// CHECK-NEXT: destroy_addr [[T_TEMP]]
// CHECK-NEXT: [[OPEN:%.*]] = open_existential_addr immutable_access [[P_TEMP]] : $*PropertyWithGetterSetter to $*[[P_OPENED:@opened(.*) PropertyWithGetterSetter]]
// CHECK-NEXT: [[T0:%.*]] = alloc_stack $[[P_OPENED]]
// CHECK-NEXT: copy_addr [[OPEN]] to [initialization] [[T0]]
// CHECK-NEXT: [[B_GETTER:%.*]] = witness_method $[[P_OPENED]], #PropertyWithGetterSetter.b!getter.1
// CHECK-NEXT: apply [[B_GETTER]]<[[P_OPENED]]>([[T0]])
// CHECK-NEXT: debug_value
// CHECK-NEXT: destroy_addr [[T0]]
// CHECK-NOT: witness_method
// CHECK: return
func modify(_ x: inout Int) {}
func modifyProperty<T : PropertyWithGetterSetter>(_ x: inout T) {
modify(&x.b)
}
// CHECK-LABEL: sil hidden [ossa] @$s9protocols14modifyPropertyyyxzAA0C16WithGetterSetterRzlF
// CHECK: [[WRITE:%.*]] = begin_access [modify] [unknown] %0 : $*T
// CHECK: [[WITNESS_FN:%.*]] = witness_method $T, #PropertyWithGetterSetter.b!modify.1
// CHECK: ([[ADDR:%.*]], [[TOKEN:%.*]]) = begin_apply [[WITNESS_FN]]<T>
// CHECK: [[MODIFY_FN:%.*]] = function_ref @$s9protocols6modifyyySizF
// CHECK: apply [[MODIFY_FN]]([[ADDR]])
// CHECK: end_apply [[TOKEN]]
public struct Val {
public var x: Int = 0
}
public protocol Proto {
var val: Val { get nonmutating set}
}
public func test(_ p: Proto) {
p.val.x += 1
}
// CHECK-LABEL: sil [ossa] @$s9protocols4testyyAA5Proto_pF : $@convention(thin) (@in_guaranteed Proto) -> ()
// CHECK: [[OPEN:%.*]] = open_existential_addr immutable_access
// CHECK: [[MAT:%.*]] = witness_method $@opened("{{.*}}") Proto, #Proto.val!modify
// CHECK: ([[BUF:%.*]], [[TOKEN:%.*]]) = begin_apply [[MAT]]
// CHECK: end_apply [[TOKEN]]
// CHECK: return
// CHECK-LABEL: sil_witness_table hidden ClassWithGetter: PropertyWithGetter module protocols {
// CHECK-NEXT: method #PropertyWithGetter.a!getter.1: {{.*}} : @$s9protocols15ClassWithGetterCAA08PropertycD0A2aDP1aSivgTW
// CHECK-NEXT: }
// CHECK-LABEL: sil_witness_table hidden ClassWithGetterSetter: PropertyWithGetterSetter module protocols {
// CHECK-NEXT: method #PropertyWithGetterSetter.b!getter.1: {{.*}} : @$s9protocols21ClassWithGetterSetterCAA08PropertycdE0A2aDP1bSivgTW
// CHECK-NEXT: method #PropertyWithGetterSetter.b!setter.1: {{.*}} : @$s9protocols21ClassWithGetterSetterCAA08PropertycdE0A2aDP1bSivsTW
// CHECK-NEXT: method #PropertyWithGetterSetter.b!modify.1: {{.*}} : @$s9protocols21ClassWithGetterSetterCAA08PropertycdE0A2aDP1bSivMTW
// CHECK-NEXT: }
// CHECK-LABEL: sil_witness_table hidden ClassWithGetterSetter: PropertyWithGetter module protocols {
// CHECK-NEXT: method #PropertyWithGetter.a!getter.1: {{.*}} : @$s9protocols21ClassWithGetterSetterCAA08PropertycD0A2aDP1aSivgTW
// CHECK-NEXT: }
// CHECK-LABEL: sil_witness_table hidden StructWithStoredProperty: PropertyWithGetter module protocols {
// CHECK-NEXT: method #PropertyWithGetter.a!getter.1: {{.*}} : @$s9protocols24StructWithStoredPropertyVAA0eC6GetterA2aDP1aSivgTW
// CHECK-NEXT: }
// CHECK-LABEL: sil_witness_table hidden StructWithStoredClassProperty: PropertyWithGetter module protocols {
// CHECK-NEXT: method #PropertyWithGetter.a!getter.1: {{.*}} : @$s9protocols29StructWithStoredClassPropertyVAA0fC6GetterA2aDP1aSivgTW
// CHECK-NEXT: }