1*67e74705SXin Li// RUN: %clang_cc1 -verify %s 2*67e74705SXin Li 3*67e74705SXin Li@interface Object 4*67e74705SXin Li@end 5*67e74705SXin Li 6*67e74705SXin Li@protocol ProtocolObject 7*67e74705SXin Li@property int class; 8*67e74705SXin Li@property (copy) id MayCauseError; 9*67e74705SXin Li@end 10*67e74705SXin Li 11*67e74705SXin Li@protocol ProtocolDerivedGCObject <ProtocolObject> 12*67e74705SXin Li@property int Dclass; 13*67e74705SXin Li@end 14*67e74705SXin Li 15*67e74705SXin Li@interface GCObject : Object <ProtocolDerivedGCObject> { 16*67e74705SXin Li int ifield; 17*67e74705SXin Li int iOwnClass; 18*67e74705SXin Li int iDclass; 19*67e74705SXin Li} 20*67e74705SXin Li@property int OwnClass; 21*67e74705SXin Li@end 22*67e74705SXin Li 23*67e74705SXin Li@interface ReleaseObject : GCObject <ProtocolObject> { 24*67e74705SXin Li int newO; 25*67e74705SXin Li int oldO; 26*67e74705SXin Li} 27*67e74705SXin Li@property (retain) id MayCauseError; // expected-warning {{'copy' attribute on property 'MayCauseError' does not match the property inherited from 'ProtocolObject'}} 28*67e74705SXin Li@end 29*67e74705SXin Li 30