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f0aca936c7
This is accomplished by recognizing this specific situation and replacing the 'objc' attribute with a hidden '_objcRuntimeName' attribute. This /only/ applies to classes that are themselves non-generic (including any enclosing generic context) but that have generic ancestry, and thus cannot be exposed directly to Objective-C. This commit also eliminates '@NSKeyedArchiverClassName'. It was decided that the distinction between '@NSKeyedArchiverClassName' and '@objc' was too subtle to be worth explaining to developers, and that any case where you'd use '@NSKeyedArchiverClassName' was already a place where the ObjC name wasn't visible at compile time. This commit does not update diagnostics to reflect this change; we're going to change them anyway. rdar://problem/32414557
44 lines
2.3 KiB
Swift
44 lines
2.3 KiB
Swift
// RUN: %target-swift-frontend -disable-objc-attr-requires-foundation-module -typecheck -verify %s -swift-version 3 -warn-swift3-objc-inference-complete
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// REQUIRES: objc_interop
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import Foundation
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class ObjCSubclass : NSObject {
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func foo() { } // expected-warning{{inference of '@objc' for members of Objective-C-derived classes is deprecated}}
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// expected-note@-1{{add `@objc` to continue exposing an Objective-C entry point (Swift 3 behavior)}}{{3-3=@objc }}
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// expected-note@-2{{add `@nonobjc` to suppress the Objective-C entry point (Swift 4 behavior)}}{{3-3=@nonobjc }}
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var bar: NSObject? = nil // expected-warning{{inference of '@objc' for members of Objective-C-derived classes is deprecated}}
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// expected-note@-1{{add `@objc` to continue exposing an Objective-C entry point (Swift 3 behavior)}}{{3-3=@objc }}
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// expected-note@-2{{add `@nonobjc` to suppress the Objective-C entry point (Swift 4 behavior)}}{{3-3=@nonobjc }}
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}
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class DynamicMembers {
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dynamic func foo() { } // expected-warning{{inference of '@objc' for 'dynamic' members is deprecated}}{{3-3=@objc }}
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dynamic var bar: NSObject? = nil // expected-warning{{inference of '@objc' for 'dynamic' members is deprecated}}{{3-3=@objc }}
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}
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class GenericClass<T>: NSObject {}
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class SubclassOfGeneric: GenericClass<Int> {
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func foo() { } // expected-warning{{inference of '@objc' for members of Objective-C-derived classes is deprecated}}
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// expected-note@-1{{add `@objc` to continue exposing an Objective-C entry point (Swift 3 behavior)}}{{3-3=@objc }}
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// expected-note@-2{{add `@nonobjc` to suppress the Objective-C entry point (Swift 4 behavior)}}{{3-3=@nonobjc }}
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}
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@objc(SubclassOfGenericCustom)
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class SubclassOfGenericCustomName: GenericClass<Int> {
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func foo() { } // expected-warning{{inference of '@objc' for members of Objective-C-derived classes is deprecated}}
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// expected-note@-1{{add `@objc` to continue exposing an Objective-C entry point (Swift 3 behavior)}}{{3-3=@objc }}
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// expected-note@-2{{add `@nonobjc` to suppress the Objective-C entry point (Swift 4 behavior)}}{{3-3=@nonobjc }}
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}
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// Suppress diagnostices about references to inferred @objc declarations
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// in this mode.
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func test(sc: ObjCSubclass, dm: DynamicMembers) {
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_ = #selector(sc.foo)
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_ = #selector(getter: dm.bar)
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_ = #keyPath(DynamicMembers.bar)
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}
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