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// RUN: %clang_cc1 -fsyntax-only -Wno-deprecated-declarations -verify %s
@interface INTF1
@required // expected-error {{directive may only be specified in protocols only}}
- (int) FooBar;
- (int) FooBar1;
- (int) FooBar2;
@optional // expected-error {{directive may only be specified in protocols only}}
+ (int) C;
- (int)I;
@end
@protocol p1,p2,p3;
@protocol p1;
@protocol PROTO1
@required
- (int) FooBar;
@optional
- (void) MyMethod1;
+ (int) S;
@end
@protocol PROTO2<p1>
@end
@protocol p1 @end
@protocol PROTO<p1> // expected-note {{previous definition is here}}
@end
@protocol PROTO<p1> // expected-warning {{duplicate protocol definition of 'PROTO'}}
@end
@protocol PROTO3<p1, p1>
@end
@protocol p2 <p1>
@end
@protocol PROTO4 <p1, p2, PROTO, PROTO3, p3>
@end
@protocol XX;
@protocol YY <XX> // Use of declaration of XX here should not cause a warning.
- zz;
@end
// Detect circular dependencies.
@protocol B;
@protocol C < B > // expected-note{{previous definition is here}}
@end
@protocol A < C >
@end
@protocol B < A > // expected-error{{protocol has circular dependency}}
@end
@protocol P
- (int)test:(int)param, ..; // expected-error{{type specifier missing}} \
// expected-error{{expected ';' after method prototype}}
@end
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