// RUN: %clang_cc1 -fsyntax-only -Wno-objc-root-class -Wreadonly-setter-attrs -verify %s @protocol P0 @property(readonly,assign) id X; // expected-warning {{property attributes 'readonly' and 'assign' are mutually exclusive}} @end @protocol P1 @property(readonly,retain) id X; // expected-warning {{property attributes 'readonly' and 'retain' are mutually exclusive}} @end @protocol P2 @property(readonly,copy) id X; // expected-warning {{property attributes 'readonly' and 'copy' are mutually exclusive}} @end @protocol P3 @property(readonly,readwrite) id X; // expected-error {{property attributes 'readonly' and 'readwrite' are mutually exclusive}} @end @protocol P4 @property(assign,copy) id X; // expected-error {{property attributes 'assign' and 'copy' are mutually exclusive}} @end @protocol P5 @property(assign,retain) id X; // expected-error {{property attributes 'assign' and 'retain' are mutually exclusive}} @end @protocol P6 @property(copy,retain) id X; // expected-error {{property attributes 'copy' and 'retain' are mutually exclusive}} @end // rdar://11656982 @interface I0 <P0> @end @implementation I0 @synthesize X; @end @interface I1 <P1> @end @implementation I1 @synthesize X; @end @interface I2 <P2> @end @implementation I2 @synthesize X; @end @interface I3 <P3> @end @implementation I3 @synthesize X; @end @interface I4 <P4> @end @implementation I4 @synthesize X; @end @interface I5 <P5> @end @implementation I5 @synthesize X; @end @interface I6 <P6> @end @implementation I6 @synthesize X; @end