1*f4a2713aSLionel Sambuc// RUN: %clang_cc1 -verify %s 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuc@interface Object 4*f4a2713aSLionel Sambuc@end 5*f4a2713aSLionel Sambuc 6*f4a2713aSLionel Sambuc@protocol ProtocolObject 7*f4a2713aSLionel Sambuc@property int class; 8*f4a2713aSLionel Sambuc@property (copy) id MayCauseError; 9*f4a2713aSLionel Sambuc@end 10*f4a2713aSLionel Sambuc 11*f4a2713aSLionel Sambuc@protocol ProtocolDerivedGCObject <ProtocolObject> 12*f4a2713aSLionel Sambuc@property int Dclass; 13*f4a2713aSLionel Sambuc@end 14*f4a2713aSLionel Sambuc 15*f4a2713aSLionel Sambuc@interface GCObject : Object <ProtocolDerivedGCObject> { 16*f4a2713aSLionel Sambuc int ifield; 17*f4a2713aSLionel Sambuc int iOwnClass; 18*f4a2713aSLionel Sambuc int iDclass; 19*f4a2713aSLionel Sambuc} 20*f4a2713aSLionel Sambuc@property int OwnClass; 21*f4a2713aSLionel Sambuc@end 22*f4a2713aSLionel Sambuc 23*f4a2713aSLionel Sambuc@interface ReleaseObject : GCObject <ProtocolObject> { 24*f4a2713aSLionel Sambuc int newO; 25*f4a2713aSLionel Sambuc int oldO; 26*f4a2713aSLionel Sambuc} 27*f4a2713aSLionel Sambuc@property (retain) id MayCauseError; // expected-warning {{'copy' attribute on property 'MayCauseError' does not match the property inherited from 'ProtocolObject'}} 28*f4a2713aSLionel Sambuc@end 29*f4a2713aSLionel Sambuc 30