mirror of
https://github.com/apple/swift.git
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ab54ea71fa
The closure with applied base is not escaping and gets applied only once (when self is fully initialized). Let's make sure that the partial application results in on-stack closure that borrows "self" instead of copying it.
315 lines
13 KiB
Swift
315 lines
13 KiB
Swift
// RUN: %target-swift-emit-silgen %s -emit-verbose-sil -sdk %S/Inputs -I %S/Inputs -enable-source-import | %FileCheck %s
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// REQUIRES: objc_interop
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import Foundation
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class A {
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@objc dynamic var prop: Int
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@objc dynamic var computedProp: Int {
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get {
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return 5
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}
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set {}
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}
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// Regular methods go through the @objc property accessors.
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties1AC6method{{[_0-9a-zA-Z]*}}F
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// CHECK: objc_method {{.*}} #A.prop
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func method(_ x: Int) {
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prop = x
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method(prop)
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}
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// Initializers and destructors always directly access stored properties, even
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// when they are @objc.
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties1AC{{[_0-9a-zA-Z]*}}fc
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// CHECK-NOT: class_method {{.*}} #A.prop
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init() {
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prop = 5
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method(prop)
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prop = 6
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}
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// rdar://15858869 - However, direct access only applies to (implicit or
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// explicit) 'self' ivar references, not ALL ivar refs.
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties1AC{{[_0-9a-zA-Z]*}}fc
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// CHECK: bb0(%0 : @owned $A, %1 : $Int, [[OLD_SELF:%.*]] : @owned $A):
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// CHECK: [[SELF:%[0-9]+]] = mark_uninitialized [rootself] [[OLD_SELF]] : $A
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init(other : A, x : Int) {
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// CHECK: [[BORROWED_SELF:%.*]] = begin_borrow [[SELF]]
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// CHECK: [[SELF_A:%[0-9]+]] = ref_element_addr [[BORROWED_SELF]] : $A, #A.prop
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// CHECK: [[WRITE:%.*]] = begin_access [modify] [dynamic] [[SELF_A]] : $*Int
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// CHECK: assign %1 to [[WRITE]]
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// CHECK: end_access [[WRITE]] : $*Int
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// CHECK: end_borrow [[BORROWED_SELF]]
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prop = x
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// CHECK: objc_method
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// CHECK: apply
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other.prop = x
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties1ACfd : $@convention(method) (@guaranteed A) -> @owned Builtin.NativeObject {
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// CHECK-NOT: class_method {{.*}} #A.prop
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// CHECK: }
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deinit {
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prop = 7
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method(prop)
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}
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties11testPropGet{{[_0-9a-zA-Z]*}}F
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func testPropGet(_ a: A) -> Int {
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// CHECK: objc_method [[OBJ:%[0-9]+]] : $A, #A.prop!getter.foreign : (A) -> () -> Int, $@convention(objc_method) (A) -> Int
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return a.prop
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties11testPropSet{{[_0-9a-zA-Z]*}}F
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func testPropSet(_ a: A, i: Int) {
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// CHECK: objc_method [[OBJ:%[0-9]+]] : $A, #A.prop!setter.foreign : (A) -> (Int) -> (), $@convention(objc_method) (Int, A) -> ()
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a.prop = i
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties19testComputedPropGet{{[_0-9a-zA-Z]*}}F
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func testComputedPropGet(_ a: A) -> Int {
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// CHECK: objc_method [[OBJ:%[0-9]+]] : $A, #A.computedProp!getter.foreign : (A) -> () -> Int, $@convention(objc_method) (A) -> Int
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return a.computedProp
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties19testComputedPropSet{{[_0-9a-zA-Z]*}}F
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func testComputedPropSet(_ a: A, i: Int) {
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// CHECK: objc_method [[OBJ:%[0-9]+]] : $A, #A.computedProp!setter.foreign : (A) -> (Int) -> (), $@convention(objc_method) (Int, A) -> ()
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a.computedProp = i
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}
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// 'super' property references.
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class B : A {
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@objc override var computedProp: Int {
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties1BC12computedPropSivg : $@convention(method) (@guaranteed B) -> Int
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get {
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// CHECK: objc_super_method [[SELF:%[0-9]+]] : $B, #A.computedProp!getter.foreign : (A) -> () -> Int, $@convention(objc_method) (A) -> Int
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return super.computedProp
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties1BC12computedPropSivs : $@convention(method) (Int, @guaranteed B) -> ()
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set(value) {
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// CHECK: objc_super_method [[SELF:%[0-9]+]] : $B, #A.computedProp!setter.foreign : (A) -> (Int) -> (), $@convention(objc_method) (Int, A) -> ()
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super.computedProp = value
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}
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}
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}
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// Test the @NSCopying attribute.
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class TestNSCopying {
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// CHECK-LABEL: sil hidden [transparent] [ossa] @$s15objc_properties13TestNSCopyingC8propertySo8NSStringCvs : $@convention(method) (@owned NSString, @guaranteed TestNSCopying) -> ()
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// CHECK: bb0([[ARG0:%.*]] : @owned $NSString, [[ARG1:%.*]] : @guaranteed $TestNSCopying):
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// CHECK: [[BORROWED_ARG0:%.*]] = begin_borrow [[ARG0]]
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// CHECK: objc_method [[BORROWED_ARG0]] : $NSString, #NSCopying.copy!foreign
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@NSCopying var property : NSString
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@NSCopying var optionalProperty : NSString?
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@NSCopying var uncheckedOptionalProperty : NSString!
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@NSCopying weak var weakProperty : NSString? = nil
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// @NSCopying unowned var unownedProperty : NSString? = nil
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init(s : NSString) { property = s }
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}
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// <rdar://problem/16663515> IBOutlet not adjusting getter/setter when making a property implicit unchecked optional
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@objc
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class TestComputedOutlet : NSObject {
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var _disclosedView : TestComputedOutlet! = .none
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@IBOutlet var disclosedView : TestComputedOutlet! {
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get { return _disclosedView }
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set { _disclosedView = newValue }
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}
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func foo() {
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_disclosedView != nil ? () : self.disclosedView.foo()
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}
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}
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class Singleton : NSObject {
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// CHECK-DAG: sil hidden [ossa] @$s15objc_properties9SingletonC14sharedInstanceACvgZ : $@convention(method) (@thick Singleton.Type) -> @owned Singleton
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// CHECK-DAG: sil private [thunk] [ossa] @$s15objc_properties9SingletonC14sharedInstanceACvgZTo : $@convention(objc_method) (@objc_metatype Singleton.Type) -> @autoreleased Singleton {
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@objc static let sharedInstance = Singleton()
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// CHECK-DAG: sil hidden [ossa] @$s15objc_properties9SingletonC1iSivgZ : $@convention(method) (@thick Singleton.Type) -> Int
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// CHECK-DAG: sil private [thunk] [ossa] @$s15objc_properties9SingletonC1iSivgZTo : $@convention(objc_method) (@objc_metatype Singleton.Type) -> Int
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@objc static let i = 2
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// CHECK-DAG: sil hidden [ossa] @$s15objc_properties9SingletonC1jSSvgZ : $@convention(method) (@thick Singleton.Type) -> @owned String
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// CHECK-DAG: sil private [thunk] [ossa] @$s15objc_properties9SingletonC1jSSvgZTo : $@convention(objc_method) (@objc_metatype Singleton.Type) -> @autoreleased NSString
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// CHECK-DAG: sil hidden [ossa] @$s15objc_properties9SingletonC1jSSvsZ : $@convention(method) (@owned String, @thick Singleton.Type) -> ()
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// CHECK-DAG: sil private [thunk] [ossa] @$s15objc_properties9SingletonC1jSSvsZTo : $@convention(objc_method) (NSString, @objc_metatype Singleton.Type) -> ()
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@objc static var j = "Hello"
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// CHECK-DAG: sil private [thunk] [ossa] @$s15objc_properties9SingletonC1kSdvgZTo : $@convention(objc_method) (@objc_metatype Singleton.Type) -> Double
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// CHECK-DAG: sil hidden [ossa] @$s15objc_properties9SingletonC1kSdvgZ : $@convention(method) (@thick Singleton.Type) -> Double
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@objc static var k: Double {
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return 7.7
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}
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}
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class HasUnmanaged : NSObject {
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// CHECK-LABEL: sil private [thunk] [ossa] @$s15objc_properties12HasUnmanagedC3refs0D0VyyXlGSgvgTo
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// CHECK: bb0([[CLS:%.*]] : @unowned $HasUnmanaged):
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// CHECK: [[CLS_COPY:%.*]] = copy_value [[CLS]]
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// CHECK: [[BORROWED_CLS_COPY:%.*]] = begin_borrow [[CLS_COPY]]
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// CHECK: [[NATIVE:%.+]] = function_ref @$s15objc_properties12HasUnmanagedC3refs0D0VyyXlGSgvg
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// CHECK: [[RESULT:%.+]] = apply [[NATIVE]]([[BORROWED_CLS_COPY]])
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// CHECK: end_borrow [[BORROWED_CLS_COPY]]
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// CHECK-NOT: {{(retain|release)}}
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// CHECK: destroy_value [[CLS_COPY]] : $HasUnmanaged
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// CHECK-NOT: {{(retain|release)}}
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// CHECK: return [[RESULT]] : $Optional<Unmanaged<AnyObject>>
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// CHECK: } // end sil function '$s15objc_properties12HasUnmanagedC3refs0D0VyyXlGSgvgTo'
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// CHECK-LABEL: sil private [thunk] [ossa] @$s15objc_properties12HasUnmanagedC3refs0D0VyyXlGSgvsTo
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// CHECK: bb0([[NEW_VALUE:%.*]] : $Optional<Unmanaged<AnyObject>>, [[SELF:%.*]] : @unowned $HasUnmanaged):
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// CHECK-NEXT: [[SELF_COPY:%.*]] = copy_value [[SELF]] : $HasUnmanaged
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// CHECK-NEXT: [[BORROWED_SELF_COPY:%.*]] = begin_borrow [[SELF_COPY]]
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// CHECK-NEXT: // function_ref
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// CHECK-NEXT: [[NATIVE:%.+]] = function_ref @$s15objc_properties12HasUnmanagedC3refs0D0VyyXlGSgvs
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// CHECK-NEXT: [[RESULT:%.*]] = apply [[NATIVE]]([[NEW_VALUE]], [[BORROWED_SELF_COPY]])
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// CHECK-NEXT: end_borrow [[BORROWED_SELF_COPY]]
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// CHECK-NEXT: destroy_value [[SELF_COPY]] : $HasUnmanaged
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// CHECK-NEXT: return [[RESULT:%.*]]
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// CHECK: } // end sil function '$s15objc_properties12HasUnmanagedC3refs0D0VyyXlGSgvsTo'
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@objc var ref: Unmanaged<AnyObject>?
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}
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@_silgen_name("autoreleasing_user")
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func useAutoreleasingUnsafeMutablePointer(_ a: AutoreleasingUnsafeMutablePointer<NSObject>)
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class NonObjCClassWithObjCProperty {
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var property: NSObject
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init(_ newValue: NSObject) {
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property = newValue
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties016NonObjCClassWithD9CPropertyC11usePropertyyyF : $@convention(method) (@guaranteed NonObjCClassWithObjCProperty) -> () {
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// CHECK: bb0([[ARG:%.*]] : @guaranteed $NonObjCClassWithObjCProperty):
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// CHECK: [[MODIFY:%.*]] = class_method [[ARG]] : $NonObjCClassWithObjCProperty, #NonObjCClassWithObjCProperty.property!modify
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// CHECK: ([[OBJECT:%.*]], [[TOKEN:%.*]]) = begin_apply [[MODIFY]]([[ARG]])
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// CHECK: [[LOADED_OBJECT:%.*]] = load_borrow [[OBJECT]]
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// CHECK: [[UNMANAGED_OBJECT:%.*]] = ref_to_unmanaged [[LOADED_OBJECT]] : $NSObject to $@sil_unmanaged NSObject
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// CHECK: end_borrow [[LOADED_OBJECT]]
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func useProperty() {
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useAutoreleasingUnsafeMutablePointer(&property)
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}
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}
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// <rdar://problem/21544588> crash when overriding non-@objc property with @objc property.
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class NonObjCBaseClass : NSObject {
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@nonobjc var property: Int {
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get { return 0 }
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set {}
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}
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}
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@objc class ObjCSubclass : NonObjCBaseClass {
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@objc override var property: Int {
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get { return 1 }
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set {}
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}
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}
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// CHECK-LABEL: sil private [thunk] [ossa] @$s15objc_properties12ObjCSubclassC8propertySivgTo
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// CHECK-LABEL: sil private [thunk] [ossa] @$s15objc_properties12ObjCSubclassC8propertySivsTo
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// Make sure lazy properties that witness @objc protocol requirements are
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// correctly formed.
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//
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// https://github.com/apple/swift/issues/44434
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@objc protocol HasProperty {
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@objc var window: NSObject? { get set }
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}
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class HasLazyProperty : NSObject, HasProperty {
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func instanceMethod() -> NSObject? {
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return nil
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}
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lazy var window = self.instanceMethod()
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}
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// CHECK-LABEL: sil hidden [lazy_getter] [noinline] [ossa] @$s15objc_properties15HasLazyPropertyC6windowSo8NSObjectCSgvg : $@convention(method) (@guaranteed HasLazyProperty) -> @owned Optional<NSObject> {
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// CHECK: class_method %0 : $HasLazyProperty, #HasLazyProperty.instanceMethod : (HasLazyProperty) -> () -> NSObject?
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// CHECK: return
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// The way we import this setter splits the name into the parameter list,
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// which can cause fits for SILGenApply the way it's currently implemented.
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties26testPropSetWithPreposition
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func testPropSetWithPreposition(object: ObjectWithSplitProperty?) {
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// CHECK: #ObjectWithSplitProperty.flagForSomething!setter.foreign : (ObjectWithSplitProperty) -> (Bool) -> (), $@convention(objc_method) ({{Bool|ObjCBool}}, ObjectWithSplitProperty) -> ()
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object?.flagForSomething = false
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}
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@propertyWrapper
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public struct SomeWrapper {
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private var value: Int
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public init(wrappedValue: Int) {
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value = wrappedValue
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}
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public var wrappedValue: Int {
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get { value }
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set { value = newValue }
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}
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}
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@propertyWrapper struct W<Value> {
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var wrappedValue: Value {
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get { return x }
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set { }
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}
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var x: Value
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init(wrappedValue: Value) {
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x = wrappedValue
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}
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}
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class SomeWrapperTests {
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@objc @SomeWrapper dynamic var someWrapper: Int = 0
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@W @objc dynamic var s: String? = nil
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties16SomeWrapperTestsCyACSScfc : $@convention(method) (@owned String, @owned SomeWrapperTests) -> @owned SomeWrapperTests {
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// CHECK: [[M:%.*]] = function_ref @$s15objc_properties16SomeWrapperTestsC04someD0SivsTD
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// CHECK: [[C:%.*]] = partial_apply [callee_guaranteed] [on_stack] [[M]]({{.*}})
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// CHECK: assign_by_wrapper {{%.*}}: $Int to {{%.*}} : $*SomeWrapper, init {{.*}} : $@callee_guaranteed (Int) -> SomeWrapper, set [[C]] : $@noescape @callee_guaranteed (Int) -> ()
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// CHECK: [[M:%.*]] = function_ref @$s15objc_properties16SomeWrapperTestsC1sSSSgvsTD
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// CHECK: [[C:%.*]] = partial_apply [callee_guaranteed] [on_stack] [[M]](
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// CHECK: assign_by_wrapper {{.*}} : $Optional<String> to {{.*}} : $*W<Optional<String>>, init {{.*}} : $@callee_guaranteed (@owned Optional<String>) -> @owned W<Optional<String>>, set [[C]] : $@noescape @callee_guaranteed (@owned Optional<String>) -> ()
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init(_ s: String) {
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someWrapper = 1000
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self.s = s
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties16SomeWrapperTestsC14testAssignmentyyF
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// CHECK: objc_method %0 : $SomeWrapperTests, #SomeWrapperTests.someWrapper!setter.foreign : (SomeWrapperTests) -> (Int) -> (), $@convention(objc_method) (Int, SomeWrapperTests) -> ()
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func testAssignment() {
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someWrapper = 1000
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}
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// CHECK-LABEL: sil hidden [ossa] @$s15objc_properties16SomeWrapperTestsC16testBridgedValueyySSF
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// CHECK: objc_method %1 : $SomeWrapperTests, #SomeWrapperTests.s!setter.foreign : (SomeWrapperTests) -> (String?) -> (), $@convention(objc_method) (Optional<NSString>, SomeWrapperTests) -> ()
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// Let's not crash.
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func testBridgedValue(_ s: String) {
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self.s = s
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}
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}
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