2cb2cd242c
C89 allowed a type specifier to be elided with the resulting type being int, aka implicit int behavior. This feature was subsequently removed in C99 without a deprecation period, so implementations continued to support the feature. Now, as with implicit function declarations, is a good time to reevaluate the need for this support. This patch allows -Wimplicit-int to issue warnings in C89 mode (off by default), defaults the warning to an error in C99 through C17, and disables support for the feature entirely in C2x. It also removes a warning about missing declaration specifiers that really was just an implicit int warning in disguise and other minor related cleanups.
68 lines
1.3 KiB
Objective-C
68 lines
1.3 KiB
Objective-C
// RUN: %clang_cc1 -fsyntax-only -Wno-deprecated-declarations -verify %s
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@interface INTF1
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@required // expected-error {{directive may only be specified in protocols only}}
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- (int) FooBar;
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- (int) FooBar1;
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- (int) FooBar2;
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@optional // expected-error {{directive may only be specified in protocols only}}
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+ (int) C;
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- (int)I;
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@end
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@protocol p1,p2,p3;
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@protocol p1;
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@protocol PROTO1
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@required
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- (int) FooBar;
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@optional
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- (void) MyMethod1;
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+ (int) S;
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@end
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@protocol PROTO2<p1>
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@end
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@protocol p1 @end
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@protocol PROTO<p1> // expected-note {{previous definition is here}}
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@end
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@protocol PROTO<p1> // expected-warning {{duplicate protocol definition of 'PROTO'}}
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@end
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@protocol PROTO3<p1, p1>
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@end
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@protocol p2 <p1>
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@end
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@protocol PROTO4 <p1, p2, PROTO, PROTO3, p3>
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@end
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// rdar://6771034
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@protocol XX;
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@protocol YY <XX> // Use of declaration of XX here should not cause a warning.
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- zz;
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@end
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// Detect circular dependencies.
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@protocol B;
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@protocol C < B > // expected-note{{previous definition is here}}
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@end
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@protocol A < C >
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@end
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@protocol B < A > // expected-error{{protocol has circular dependency}}
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@end
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@protocol P
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- (int)test:(int)param, ..; // expected-error{{type specifier missing}} \
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// expected-error{{expected ';' after method prototype}}
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@end
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