You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
1.4 KiB
46 lines
1.4 KiB
4 months ago
|
// 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
|