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swift-mirror/test/SILGen/dynamic_lookup.swift

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// RUN: %target-swift-frontend -parse-as-library -emit-silgen -disable-objc-attr-requires-foundation-module %s | %FileCheck %s
// REQUIRES: objc_interop
class X {
@objc func f() { }
@objc class func staticF() { }
@objc var value: Int {
return 17
}
@objc subscript (i: Int) -> Int {
get {
return i
}
set {}
}
}
@objc protocol P {
func g()
}
// CHECK-LABEL: sil hidden @_T014dynamic_lookup15direct_to_class{{[_0-9a-zA-Z]*}}F
func direct_to_class(_ obj: AnyObject) {
// CHECK: bb0([[ARG:%.*]] : $AnyObject):
// CHECK: [[BORROWED_ARG:%.*]] = begin_borrow [[ARG]]
// CHECK: [[OPENED_ARG:%[0-9]+]] = open_existential_ref [[BORROWED_ARG]] : $AnyObject to $@opened({{.*}}) AnyObject
// CHECK: [[OPENED_ARG_COPY:%.*]] = copy_value [[OPENED_ARG]]
// CHECK: [[METHOD:%[0-9]+]] = dynamic_method [volatile] [[OPENED_ARG_COPY]] : $@opened({{.*}}) AnyObject, #X.f!1.foreign : (X) -> () -> (), $@convention(objc_method) (@opened({{.*}}) AnyObject) -> ()
// CHECK: apply [[METHOD]]([[OPENED_ARG_COPY]]) : $@convention(objc_method) (@opened({{.*}}) AnyObject) -> ()
// CHECK: destroy_value [[OPENED_ARG_COPY]]
// CHECK: end_borrow [[BORROWED_ARG]] from [[ARG]]
// CHECK: destroy_value [[ARG]]
obj.f!()
}
// CHECK: } // end sil function '_T014dynamic_lookup15direct_to_class{{[_0-9a-zA-Z]*}}F'
// CHECK-LABEL: sil hidden @_T014dynamic_lookup18direct_to_protocol{{[_0-9a-zA-Z]*}}F
func direct_to_protocol(_ obj: AnyObject) {
// CHECK: bb0([[ARG:%.*]] : $AnyObject):
// CHECK: [[BORROWED_ARG:%.*]] = begin_borrow [[ARG]]
// CHECK: [[OPENED_ARG:%[0-9]+]] = open_existential_ref [[BORROWED_ARG]] : $AnyObject to $@opened({{.*}}) AnyObject
// CHECK: [[OPENED_ARG_COPY:%.*]] = copy_value [[OPENED_ARG]]
// CHECK: [[METHOD:%[0-9]+]] = dynamic_method [volatile] [[OPENED_ARG_COPY]] : $@opened({{.*}}) AnyObject, #P.g!1.foreign : <Self where Self : P> (Self) -> () -> (), $@convention(objc_method) (@opened({{.*}}) AnyObject) -> ()
// CHECK: apply [[METHOD]]([[OPENED_ARG_COPY]]) : $@convention(objc_method) (@opened({{.*}}) AnyObject) -> ()
// CHECK: destroy_value [[OPENED_ARG_COPY]]
// CHECK: end_borrow [[BORROWED_ARG]] from [[ARG]]
// CHECK: destroy_value [[ARG]]
obj.g!()
}
// CHECK: } // end sil function '_T014dynamic_lookup18direct_to_protocol{{[_0-9a-zA-Z]*}}F'
// CHECK-LABEL: sil hidden @_T014dynamic_lookup23direct_to_static_method{{[_0-9a-zA-Z]*}}F
func direct_to_static_method(_ obj: AnyObject) {
// CHECK: bb0([[ARG:%.*]] : $AnyObject):
var obj = obj
// CHECK: [[OBJBOX:%[0-9]+]] = alloc_box ${ var AnyObject }
// CHECK-NEXT: [[PBOBJ:%[0-9]+]] = project_box [[OBJBOX]]
// CHECK: [[BORROWED_ARG:%.*]] = begin_borrow [[ARG]]
// CHECK: [[ARG_COPY:%.*]] = copy_value [[BORROWED_ARG]]
// CHECK: store [[ARG_COPY]] to [init] [[PBOBJ]] : $*AnyObject
// CHECK: end_borrow [[BORROWED_ARG]] from [[ARG]]
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBOBJ]]
// CHECK-NEXT: [[OBJCOPY:%[0-9]+]] = load_borrow [[READ]] : $*AnyObject
// CHECK: end_access [[READ]]
// CHECK-NEXT: [[OBJMETA:%[0-9]+]] = existential_metatype $@thick AnyObject.Type, [[OBJCOPY]] : $AnyObject
// CHECK-NEXT: [[OPENMETA:%[0-9]+]] = open_existential_metatype [[OBJMETA]] : $@thick AnyObject.Type to $@thick (@opened([[UUID:".*"]]) AnyObject).Type
// CHECK-NEXT: [[METHOD:%[0-9]+]] = dynamic_method [volatile] [[OPENMETA]] : $@thick (@opened([[UUID]]) AnyObject).Type, #X.staticF!1.foreign : (X.Type) -> () -> (), $@convention(objc_method) (@thick (@opened([[UUID]]) AnyObject).Type) -> ()
// CHECK: apply [[METHOD]]([[OPENMETA]]) : $@convention(objc_method) (@thick (@opened([[UUID]]) AnyObject).Type) -> ()
// CHECK: destroy_value [[OBJBOX]]
// CHECK: destroy_value [[ARG]]
type(of: obj).staticF!()
}
// } // end sil function '_TF14dynamic_lookup23direct_to_static_method{{.*}}'
// CHECK-LABEL: sil hidden @_T014dynamic_lookup12opt_to_class{{[_0-9a-zA-Z]*}}F
func opt_to_class(_ obj: AnyObject) {
// CHECK: bb0([[ARG:%.*]] : $AnyObject):
var obj = obj
// CHECK: [[EXISTBOX:%[0-9]+]] = alloc_box ${ var AnyObject }
// CHECK: [[PBOBJ:%[0-9]+]] = project_box [[EXISTBOX]]
// CHECK: [[BORROWED_ARG:%.*]] = begin_borrow [[ARG]]
// CHECK: [[ARG_COPY:%.*]] = copy_value [[BORROWED_ARG]]
// CHECK: store [[ARG_COPY]] to [init] [[PBOBJ]]
// CHECK: end_borrow [[BORROWED_ARG]] from [[ARG]]
// CHECK: [[OPTBOX:%[0-9]+]] = alloc_box ${ var Optional<@callee_owned () -> ()> }
// CHECK: [[PBOPT:%.*]] = project_box [[OPTBOX]]
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBOBJ]]
// CHECK: [[EXISTVAL:%[0-9]+]] = load [copy] [[READ]] : $*AnyObject
// CHECK: [[OBJ_SELF:%[0-9]*]] = open_existential_ref [[EXISTVAL]]
// CHECK: [[OPT_TMP:%.*]] = alloc_stack $Optional<@callee_owned () -> ()>
// CHECK: dynamic_method_br [[OBJ_SELF]] : $@opened({{.*}}) AnyObject, #X.f!1.foreign, [[HASBB:[a-zA-z0-9]+]], [[NOBB:[a-zA-z0-9]+]]
// Has method BB:
// CHECK: [[HASBB]]([[UNCURRIED:%[0-9]+]] : $@convention(objc_method) (@opened({{.*}}) AnyObject) -> ()):
// CHECK: [[OBJ_SELF_COPY:%.*]] = copy_value [[OBJ_SELF]]
// CHECK: [[PARTIAL:%[0-9]+]] = partial_apply [[UNCURRIED]]([[OBJ_SELF_COPY]]) : $@convention(objc_method) (@opened({{.*}}) AnyObject) -> ()
// CHECK: [[THUNK_PAYLOAD:%.*]] = init_enum_data_addr [[OPT_TMP]]
// CHECK: store [[PARTIAL]] to [init] [[THUNK_PAYLOAD]]
// CHECK: inject_enum_addr [[OPT_TMP]] : $*Optional<@callee_owned () -> ()>, #Optional.some!enumelt.1
// CHECK: br [[CONTBB:[a-zA-Z0-9]+]]
// No method BB:
// CHECK: [[NOBB]]:
// CHECK: inject_enum_addr [[OPT_TMP]] : {{.*}}, #Optional.none!enumelt
// CHECK: br [[CONTBB]]
// Continuation block
// CHECK: [[CONTBB]]:
// CHECK: [[OPT:%.*]] = load [take] [[OPT_TMP]]
// CHECK: store [[OPT]] to [init] [[PBOPT]] : $*Optional<@callee_owned () -> ()>
// CHECK: dealloc_stack [[OPT_TMP]]
var of: (() -> ())! = obj.f
// Exit
// CHECK: destroy_value [[OBJ_SELF]] : $@opened({{".*"}}) AnyObject
// CHECK: destroy_value [[OPTBOX]] : ${ var Optional<@callee_owned () -> ()> }
// CHECK: destroy_value [[EXISTBOX]] : ${ var AnyObject }
// CHECK: destroy_value %0
// CHECK: [[RESULT:%[0-9]+]] = tuple ()
// CHECK: return [[RESULT]] : $()
}
// CHECK-LABEL: sil hidden @_T014dynamic_lookup20forced_without_outer{{[_0-9a-zA-Z]*}}F
func forced_without_outer(_ obj: AnyObject) {
// CHECK: dynamic_method_br
var f = obj.f!
}
// CHECK-LABEL: sil hidden @_T014dynamic_lookup20opt_to_static_method{{[_0-9a-zA-Z]*}}F
func opt_to_static_method(_ obj: AnyObject) {
var obj = obj
// CHECK: bb0([[OBJ:%[0-9]+]] : $AnyObject):
// CHECK: [[OBJBOX:%[0-9]+]] = alloc_box ${ var AnyObject }
// CHECK: [[PBOBJ:%[0-9]+]] = project_box [[OBJBOX]]
// CHECK: [[BORROWED_OBJ:%.*]] = begin_borrow [[OBJ]]
// CHECK: [[OBJ_COPY:%.*]] = copy_value [[BORROWED_OBJ]]
// CHECK: store [[OBJ_COPY]] to [init] [[PBOBJ]] : $*AnyObject
// CHECK: end_borrow [[BORROWED_OBJ]] from [[OBJ]]
// CHECK: [[OPTBOX:%[0-9]+]] = alloc_box ${ var Optional<@callee_owned () -> ()> }
// CHECK: [[PBO:%.*]] = project_box [[OPTBOX]]
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBOBJ]]
// CHECK: [[OBJCOPY:%[0-9]+]] = load_borrow [[READ]] : $*AnyObject
// CHECK: [[OBJMETA:%[0-9]+]] = existential_metatype $@thick AnyObject.Type, [[OBJCOPY]] : $AnyObject
// CHECK: [[OPENMETA:%[0-9]+]] = open_existential_metatype [[OBJMETA]] : $@thick AnyObject.Type to $@thick (@opened
// CHECK: [[OBJCMETA:%[0-9]+]] = thick_to_objc_metatype [[OPENMETA]]
// CHECK: [[OPTTEMP:%.*]] = alloc_stack $Optional<@callee_owned () -> ()>
// CHECK: dynamic_method_br [[OBJCMETA]] : $@objc_metatype (@opened({{".*"}}) AnyObject).Type, #X.staticF!1.foreign, [[HASMETHOD:[A-Za-z0-9_]+]], [[NOMETHOD:[A-Za-z0-9_]+]]
var optF: (() -> ())! = type(of: obj).staticF
}
// CHECK-LABEL: sil hidden @_T014dynamic_lookup15opt_to_property{{[_0-9a-zA-Z]*}}F
func opt_to_property(_ obj: AnyObject) {
var obj = obj
// CHECK: bb0([[OBJ:%[0-9]+]] : $AnyObject):
// CHECK: [[OBJ_BOX:%[0-9]+]] = alloc_box ${ var AnyObject }
// CHECK: [[PBOBJ:%[0-9]+]] = project_box [[OBJ_BOX]]
// CHECK: [[BORROWED_OBJ:%.*]] = begin_borrow [[OBJ]]
// CHECK: [[OBJ_COPY:%.*]] = copy_value [[BORROWED_OBJ]]
// CHECK: store [[OBJ_COPY]] to [init] [[PBOBJ]] : $*AnyObject
// CHECK: end_borrow [[BORROWED_OBJ]] from [[OBJ]]
// CHECK: [[INT_BOX:%[0-9]+]] = alloc_box ${ var Int }
// CHECK: project_box [[INT_BOX]]
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBOBJ]]
// CHECK: [[OBJ:%[0-9]+]] = load [copy] [[READ]] : $*AnyObject
// CHECK: [[RAWOBJ_SELF:%[0-9]+]] = open_existential_ref [[OBJ]] : $AnyObject
// CHECK: [[OPTTEMP:%.*]] = alloc_stack $Optional<Int>
// CHECK: dynamic_method_br [[RAWOBJ_SELF]] : $@opened({{.*}}) AnyObject, #X.value!getter.1.foreign, bb1, bb2
// CHECK: bb1([[METHOD:%[0-9]+]] : $@convention(objc_method) (@opened({{.*}}) AnyObject) -> Int):
// CHECK: [[RAWOBJ_SELF_COPY:%.*]] = copy_value [[RAWOBJ_SELF]]
// CHECK: [[BOUND_METHOD:%[0-9]+]] = partial_apply [[METHOD]]([[RAWOBJ_SELF_COPY]]) : $@convention(objc_method) (@opened({{.*}}) AnyObject) -> Int
// CHECK: [[VALUE:%[0-9]+]] = apply [[BOUND_METHOD]]() : $@callee_owned () -> Int
// CHECK: [[VALUETEMP:%.*]] = init_enum_data_addr [[OPTTEMP]]
// CHECK: store [[VALUE]] to [trivial] [[VALUETEMP]]
// CHECK: inject_enum_addr [[OPTTEMP]]{{.*}}some
// CHECK: br bb3
var i: Int = obj.value!
}
// CHECK: } // end sil function '_T014dynamic_lookup15opt_to_property{{[_0-9a-zA-Z]*}}F'
// CHECK-LABEL: sil hidden @_T014dynamic_lookup19direct_to_subscript{{[_0-9a-zA-Z]*}}F
func direct_to_subscript(_ obj: AnyObject, i: Int) {
var obj = obj
var i = i
// CHECK: bb0([[OBJ:%[0-9]+]] : $AnyObject, [[I:%[0-9]+]] : $Int):
// CHECK: [[OBJ_BOX:%[0-9]+]] = alloc_box ${ var AnyObject }
// CHECK: [[PBOBJ:%[0-9]+]] = project_box [[OBJ_BOX]]
// CHECK: [[BORROWED_OBJ:%.*]] = begin_borrow [[OBJ]]
// CHECK: [[OBJ_COPY:%.*]] = copy_value [[BORROWED_OBJ]]
// CHECK: store [[OBJ_COPY]] to [init] [[PBOBJ]] : $*AnyObject
// CHECK: end_borrow [[BORROWED_OBJ]] from [[OBJ]]
// CHECK: [[I_BOX:%[0-9]+]] = alloc_box ${ var Int }
// CHECK: [[PBI:%.*]] = project_box [[I_BOX]]
// CHECK: store [[I]] to [trivial] [[PBI]] : $*Int
// CHECK: alloc_box ${ var Int }
// CHECK: project_box
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBOBJ]]
// CHECK: [[OBJ:%[0-9]+]] = load [copy] [[READ]] : $*AnyObject
// CHECK: [[OBJ_REF:%[0-9]+]] = open_existential_ref [[OBJ]] : $AnyObject to $@opened({{.*}}) AnyObject
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBI]]
// CHECK: [[I:%[0-9]+]] = load [trivial] [[READ]] : $*Int
// CHECK: [[OPTTEMP:%.*]] = alloc_stack $Optional<Int>
// CHECK: dynamic_method_br [[OBJ_REF]] : $@opened({{.*}}) AnyObject, #X.subscript!getter.1.foreign, bb1, bb2
// CHECK: bb1([[GETTER:%[0-9]+]] : $@convention(objc_method) (Int, @opened({{.*}}) AnyObject) -> Int):
// CHECK: [[OBJ_REF_COPY:%.*]] = copy_value [[OBJ_REF]]
// CHECK: [[GETTER_WITH_SELF:%[0-9]+]] = partial_apply [[GETTER]]([[OBJ_REF_COPY]]) : $@convention(objc_method) (Int, @opened({{.*}}) AnyObject) -> Int
// CHECK: [[RESULT:%[0-9]+]] = apply [[GETTER_WITH_SELF]]([[I]]) : $@callee_owned (Int) -> Int
// CHECK: [[RESULTTEMP:%.*]] = init_enum_data_addr [[OPTTEMP]]
// CHECK: store [[RESULT]] to [trivial] [[RESULTTEMP]]
// CHECK: inject_enum_addr [[OPTTEMP]]{{.*}}some
// CHECK: br bb3
var x: Int = obj[i]!
}
// CHECK: } // end sil function '_T014dynamic_lookup19direct_to_subscript{{[_0-9a-zA-Z]*}}F'
// CHECK-LABEL: sil hidden @_T014dynamic_lookup16opt_to_subscript{{[_0-9a-zA-Z]*}}F
func opt_to_subscript(_ obj: AnyObject, i: Int) {
var obj = obj
var i = i
// CHECK: bb0([[OBJ:%[0-9]+]] : $AnyObject, [[I:%[0-9]+]] : $Int):
// CHECK: [[OBJ_BOX:%[0-9]+]] = alloc_box ${ var AnyObject }
// CHECK: [[PBOBJ:%[0-9]+]] = project_box [[OBJ_BOX]]
// CHECK: [[BORROWED_OBJ:%.*]] = begin_borrow [[OBJ]]
// CHECK: [[OBJ_COPY:%.*]] = copy_value [[BORROWED_OBJ]]
// CHECK: store [[OBJ_COPY]] to [init] [[PBOBJ]] : $*AnyObject
// CHECK: end_borrow [[BORROWED_OBJ]] from [[OBJ]]
// CHECK: [[I_BOX:%[0-9]+]] = alloc_box ${ var Int }
// CHECK: [[PBI:%.*]] = project_box [[I_BOX]]
// CHECK: store [[I]] to [trivial] [[PBI]] : $*Int
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBOBJ]]
// CHECK: [[OBJ:%[0-9]+]] = load [copy] [[READ]] : $*AnyObject
// CHECK: [[OBJ_REF:%[0-9]+]] = open_existential_ref [[OBJ]] : $AnyObject to $@opened({{.*}}) AnyObject
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBI]]
// CHECK: [[I:%[0-9]+]] = load [trivial] [[READ]] : $*Int
// CHECK: [[OPTTEMP:%.*]] = alloc_stack $Optional<Int>
// CHECK: dynamic_method_br [[OBJ_REF]] : $@opened({{.*}}) AnyObject, #X.subscript!getter.1.foreign, bb1, bb2
// CHECK: bb1([[GETTER:%[0-9]+]] : $@convention(objc_method) (Int, @opened({{.*}}) AnyObject) -> Int):
// CHECK: [[OBJ_REF_COPY:%.*]] = copy_value [[OBJ_REF]]
// CHECK: [[GETTER_WITH_SELF:%[0-9]+]] = partial_apply [[GETTER]]([[OBJ_REF_COPY]]) : $@convention(objc_method) (Int, @opened({{.*}}) AnyObject) -> Int
// CHECK: [[RESULT:%[0-9]+]] = apply [[GETTER_WITH_SELF]]([[I]]) : $@callee_owned (Int) -> Int
// CHECK: [[RESULTTEMP:%.*]] = init_enum_data_addr [[OPTTEMP]]
// CHECK: store [[RESULT]] to [trivial] [[RESULTTEMP]]
// CHECK: inject_enum_addr [[OPTTEMP]]
// CHECK: br bb3
obj[i]
}
// CHECK-LABEL: sil hidden @_T014dynamic_lookup8downcast{{[_0-9a-zA-Z]*}}F
func downcast(_ obj: AnyObject) -> X {
var obj = obj
// CHECK: bb0([[OBJ:%[0-9]+]] : $AnyObject):
// CHECK: [[OBJ_BOX:%[0-9]+]] = alloc_box ${ var AnyObject }
// CHECK: [[PBOBJ:%[0-9]+]] = project_box [[OBJ_BOX]]
// CHECK: [[BORROWED_OBJ:%.*]] = begin_borrow [[OBJ]]
// CHECK: [[OBJ_COPY:%.*]] = copy_value [[BORROWED_OBJ]]
// CHECK: store [[OBJ_COPY]] to [init] [[PBOBJ]] : $*AnyObject
// CHECK: end_borrow [[BORROWED_OBJ]] from [[OBJ]]
// CHECK: [[READ:%.*]] = begin_access [read] [unknown] [[PBOBJ]]
// CHECK: [[OBJ:%[0-9]+]] = load [copy] [[READ]] : $*AnyObject
// CHECK: [[X:%[0-9]+]] = unconditional_checked_cast [[OBJ]] : $AnyObject to $X
// CHECK: destroy_value [[OBJ_BOX]] : ${ var AnyObject }
// CHECK: destroy_value %0
// CHECK: return [[X]] : $X
return obj as! X
}
@objc class Juice { }
@objc protocol Fruit {
@objc optional var juice: Juice { get }
}
// CHECK-LABEL: sil hidden @_T014dynamic_lookup7consumeyAA5Fruit_pF
// CHECK: bb0(%0 : $Fruit):
// CHECK: [[BOX:%.*]] = alloc_stack $Optional<Juice>
// CHECK: dynamic_method_br [[SELF:%.*]] : $@opened("{{.*}}") Fruit, #Fruit.juice!getter.1.foreign, bb1, bb2
// CHECK: bb1([[FN:%.*]] : $@convention(objc_method) (@opened("{{.*}}") Fruit) -> @autoreleased Juice):
// CHECK: [[SELF_COPY:%.*]] = copy_value [[SELF]]
// CHECK: [[METHOD:%.*]] = partial_apply [[FN]]([[SELF_COPY]]) : $@convention(objc_method) (@opened("{{.*}}") Fruit) -> @autoreleased Juice
// CHECK: [[RESULT:%.*]] = apply [[METHOD]]() : $@callee_owned () -> @owned Juice
// CHECK: [[PAYLOAD:%.*]] = init_enum_data_addr [[BOX]] : $*Optional<Juice>, #Optional.some!enumelt.1
// CHECK: store [[RESULT]] to [init] [[PAYLOAD]]
// CHECK: inject_enum_addr [[BOX]] : $*Optional<Juice>, #Optional.some!enumelt.1
// CHECK: br bb3
// CHECK: bb2:
// CHECK: inject_enum_addr [[BOX]] : $*Optional<Juice>, #Optional.none!enumelt
// CHECK: br bb3
// CHECK: bb3:
// CHECK: return
func consume(_ fruit: Fruit) {
_ = fruit.juice
}
// rdar://problem/29249513 -- looking up an IUO member through AnyObject
// produces a Foo!? type. The SIL verifier did not correctly consider Optional
// to be the lowering of IUO (which is now eliminated by SIL lowering).
@objc protocol IUORequirement {
var iuoProperty: AnyObject! { get }
}
func getIUOPropertyDynamically(x: AnyObject) -> Any {
return x.iuoProperty
}
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