81bc1365d8
The swift_bridge attribute warns when the attribute is applied multiple times to the same declaration. However, it warns about the arguments being different to the attribute without ever checking if the arguments actually are different. If the arguments are different, diagnose, otherwise silently accept the code. Either way, drop the duplicated attribute.
39 lines
1.2 KiB
Objective-C
39 lines
1.2 KiB
Objective-C
// RUN: %clang_cc1 -verify -fsyntax-only %s
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// expected-error@+1 {{'__swift_bridge__' attribute takes one argument}}
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__attribute__((__swift_bridge__))
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@interface I
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@end
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// expected-error@+1 {{'__swift_bridge__' attribute requires a string}}
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__attribute__((__swift_bridge__(1)))
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@interface J
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@end
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// expected-error@+1 {{'__swift_bridge__' attribute takes one argument}}
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__attribute__((__swift_bridge__("K", 1)))
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@interface K
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@end
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@interface L
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// expected-error@+1 {{'__swift_bridge__' attribute only applies to tag types, typedefs, Objective-C interfaces, and Objective-C protocols}}
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- (void)method __attribute__((__swift_bridge__("method")));
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@end
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__attribute__((__swift_bridge__("Array")))
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@interface NSArray
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@end
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__attribute__((__swift_bridge__("ProtocolP")))
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@protocol P
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@end
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typedef NSArray *NSArrayAlias __attribute__((__swift_bridge__("ArrayAlias")));
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struct __attribute__((__swift_bridge__("StructT"))) T {};
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// Duplicate attributes with the same arguments are fine.
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struct __attribute__((swift_bridge("foo"), swift_bridge("foo"))) S;
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// Duplicate attributes with different arguments are not.
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struct __attribute__((swift_bridge("foo"), swift_bridge("bar"))) S; // expected-warning {{attribute 'swift_bridge' is already applied with different arguments}}
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