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149 lines
7.5 KiB
Swift
149 lines
7.5 KiB
Swift
// RUN: %target-typecheck-verify-swift
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// REQUIRES: objc_interop
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@IBAction // expected-error {{@IBAction may only be used on 'func' declarations}} {{1-11=}}
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var iboutlet_global: Int
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var iboutlet_accessor: Int {
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@IBAction // expected-error {{@IBAction may only be used on 'func' declarations}} {{3-13=}}
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get { return 42 }
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}
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@IBAction // expected-error {{@IBAction may only be used on 'func' declarations}} {{1-11=}}
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class IBOutletClassTy {}
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@IBAction // expected-error {{@IBAction may only be used on 'func' declarations}} {{1-11=}}
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struct IBStructTy {}
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@IBAction // expected-error {{only instance methods can be declared @IBAction}} {{1-11=}}
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func IBFunction() -> () {}
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class IBActionWrapperTy {
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@IBAction
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func click(_: AnyObject) -> () {} // no-warning
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func outer(_: AnyObject) -> () {
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@IBAction // expected-error {{only instance methods can be declared @IBAction}} {{5-15=}}
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func inner(_: AnyObject) -> () {}
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}
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@IBAction // expected-error {{@IBAction may only be used on 'func' declarations}} {{3-13=}}
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var value : Void = ()
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@IBAction
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func process(x: AnyObject) -> Int {} // expected-error {{methods declared @IBAction must not return a value}}
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// @IBAction does /not/ semantically imply @objc.
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@IBAction // expected-note {{attribute already specified here}}
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@IBAction // expected-error {{duplicate attribute}}
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func doMagic(_: AnyObject) -> () {}
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@IBAction @objc
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func moreMagic(_: AnyObject) -> () {} // no-warning
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@objc @IBAction
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func evenMoreMagic(_: AnyObject) -> () {} // no-warning
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@available(SwiftStdlib 5.5, *)
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@IBAction
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func asyncIBActionNoSpace(_: AnyObject) async -> () {}
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// expected-error@-1 {{@IBAction instance method cannot be async}}
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// expected-note@-2 {{remove 'async' and wrap in 'Task' to use concurrency in 'asyncIBActionNoSpace'}}{{45:3-47:57=@available(SwiftStdlib 5.5, *)\n @IBAction\n func asyncIBActionNoSpace(_: AnyObject) -> () {\nTask { @MainActor in \}\n\}}}
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@available(SwiftStdlib 5.5, *)
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@IBAction
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func asyncIBActionWithFullBody(_: AnyObject) async {
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print("Hello World")
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}
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// expected-error@-3 {{@IBAction instance method cannot be async}}
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// expected-note@-4 {{remove 'async' and wrap in 'Task' to use concurrency in 'asyncIBActionWithFullBody'}}{{51:3-55:4=@available(SwiftStdlib 5.5, *)\n @IBAction\n func asyncIBActionWithFullBody(_: AnyObject) {\nTask { @MainActor in\n print("Hello World")\n \}\n\}}}
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@available(SwiftStdlib 5.5, *) @IBAction func asyncIBActionNoBody(_: AnyObject) async
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// expected-error@-1 {{expected '{' in body of function declaration}}
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// expected-error@-2 {{@IBAction instance method cannot be asynchronous}}
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// expected-note@-3 {{remove 'async' and wrap in 'Task' to use concurrency in 'asyncIBActionNoBody}}{{3-88=@available(SwiftStdlib 5.5, *) @IBAction func asyncIBActionNoBody(_: AnyObject)}}
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}
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struct S { }
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enum E { }
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protocol P1 { }
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protocol P2 { }
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protocol CP1 : class { }
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protocol CP2 : class { }
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@objc protocol OP1 { }
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@objc protocol OP2 { }
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// Teach the compiler that String is @objc-friendly without importing
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// Foundation.
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extension String: @retroactive _ObjectiveCBridgeable {
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@_semantics("convertToObjectiveC") public func _bridgeToObjectiveC() -> AnyObject { fatalError() }
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public static func _forceBridgeFromObjectiveC(_ x: AnyObject, result: inout String?) { fatalError() }
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public static func _conditionallyBridgeFromObjectiveC(_ x: AnyObject, result: inout String?) -> Bool { fatalError() }
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@_effects(readonly) public static func _unconditionallyBridgeFromObjectiveC(_ source: AnyObject? ) -> String { fatalError() }
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}
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// Check which argument types @IBAction can take.
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@objc class X {
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// Class type
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@IBAction func action1(_: X) {}
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@IBAction func action2(_: X?) {}
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@IBAction func action3(_: X!) {}
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// AnyObject
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@IBAction func action4(_: AnyObject) {}
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@IBAction func action5(_: AnyObject?) {}
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@IBAction func action6(_: AnyObject!) {}
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// Any
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@IBAction func action4a(_: Any) {}
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@IBAction func action5a(_: Any?) {}
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@IBAction func action6a(_: Any!) {}
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// Protocol types
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@IBAction func action7(_: P1) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}} expected-note{{protocol-constrained type containing protocol 'P1' cannot be represented in Objective-C}}
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@IBAction func action8(_: CP1) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}} expected-note{{protocol-constrained type containing protocol 'CP1' cannot be represented in Objective-C}}
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@IBAction func action9(_: OP1) {}
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@IBAction func action10(_: P1?) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action11(_: CP1?) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action12(_: OP1?) {}
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@IBAction func action13(_: P1!) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action14(_: CP1!) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action15(_: OP1!) {}
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// Class metatype
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@IBAction func action15b(_: X.Type) {}
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@IBAction func action16(_: X.Type?) {}
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@IBAction func action17(_: X.Type!) {}
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// AnyClass
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@IBAction func action18(_: AnyClass) {}
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@IBAction func action19(_: AnyClass?) {}
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@IBAction func action20(_: AnyClass!) {}
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// Protocol types
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@IBAction func action21(_: P1.Type) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action22(_: CP1.Type) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action23(_: OP1.Type) {}
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@IBAction func action24(_: P1.Type?) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action25(_: CP1.Type?) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action26(_: OP1.Type?) {}
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@IBAction func action27(_: P1.Type!) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action28(_: CP1.Type!) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action29(_: OP1.Type!) {}
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// Structs representable in Objective-C
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@IBAction func action32(_: Int) {}
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@IBAction func action33(_: Int?) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}}
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@IBAction func action34(_: String) {}
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@IBAction func action35(_: String?) {}
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// Other bad cases
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@IBAction func action30(_: S) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}} expected-note{{Swift structs cannot be represented in Objective-C}}
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@IBAction func action31(_: E) {} // expected-error{{method cannot be marked '@IBAction' because the type of the parameter cannot be represented in Objective-C}} expected-note{{non-'@objc' enums cannot be represented in Objective-C}}
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init() { }
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}
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