916b434035
This adds the `__swift_objc_members__` attribute to the semantic
analysis. It allows for annotating ObjC interfaces to provide Swift
semantics indicating that the types derived from this interface will be
back-bridged to Objective-C to allow interoperability with Objective-C
and Swift.
This is based on the work of the original changes in
8afaf3aad2
Differential Revision: https://reviews.llvm.org/D87395
Reviewed By: Aaron Ballman, Dmitri Gribenko
25 lines
696 B
Objective-C
25 lines
696 B
Objective-C
// RUN: %clang_cc1 -verify -fsyntax-only %s
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#if !__has_attribute(swift_objc_members)
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#error cannot verify presence of swift_objc_members attribute
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#endif
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__attribute__((__swift_objc_members__))
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__attribute__((__objc_root_class__))
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@interface I
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@end
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__attribute__((swift_objc_members))
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@protocol P
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@end
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// expected-error@-3 {{'swift_objc_members' attribute only applies to Objective-C interfaces}}
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__attribute__((swift_objc_members))
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extern void f(void);
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// expected-error@-2 {{'swift_objc_members' attribute only applies to Objective-C interfaces}}
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// expected-error@+1 {{'__swift_objc_members__' attribute takes no arguments}}
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__attribute__((__swift_objc_members__("J")))
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@interface J
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@end
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