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// RUN: %clang_cc1 -emit-pch %s -o %t
// RUN: %clang_cc1 -include-pch %t -verify %s
#ifndef HEADER_INCLUDED
#define HEADER_INCLUDED
@protocol NSObject
@end
__attribute__((objc_root_class))
@interface NSObject
@end
@interface PC1<__covariant T, U : NSObject *> : NSObject
// expected-note@-2{{type parameter 'U' declared here}}
@end
@interface PC1<__covariant T, U : NSObject *> (Cat1)
@end
typedef PC1<id, NSObject *> PC1Specialization1;
typedef PC1Specialization1 <NSObject> PC1Specialization2;
#else
@interface PC1<T : NSObject *, // expected-error{{type bound 'NSObject *' for type parameter 'T' conflicts with implicit bound 'id}}
// expected-note@15{{type parameter 'T' declared here}}
U : id> (Cat2) // expected-error{{type bound 'id' for type parameter 'U' conflicts with previous bound 'NSObject *'}}
// expected-note@15{{type parameter 'U' declared here}}
@end
typedef PC1Specialization1<id, NSObject *> PC1Specialization3; // expected-error{{type arguments cannot be applied to already-specialized class type 'PC1Specialization1' (aka 'PC1<id,NSObject *>')}}
typedef PC1Specialization2<id, NSObject *> PC1Specialization4; // expected-error{{already-specialized class type 'PC1Specialization2' (aka 'PC1Specialization1<NSObject>')}}
@interface NSString : NSObject
@end
void testCovariance(PC1<NSObject *, NSObject *> *pc1a,
PC1<NSString *, NSObject *> *pc1b) {
pc1a = pc1b;
}
#endif
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