1 // RUN: %clang_cc1 -Wmethod-signatures -fsyntax-only -verify %s 2 3 @class B; 4 @interface A 5 - (B*)obj; 6 - (B*)a; // expected-note {{previous definition is here}} 7 - (void)takesA: (A*)a; // expected-note {{previous definition is here}} 8 - (void)takesId: (id)a; // expected-note {{previous definition is here}} 9 @end 10 11 12 @interface B : A 13 @end 14 15 @implementation B 16 - (id)obj {return self;} // 'id' overrides are white-listed? 17 - (A*)a { return self;} // expected-warning {{conflicting return type in implementation of 'a'}} 18 - (void)takesA: (B*)a // expected-warning {{conflicting parameter types in implementation of 'takesA:'}} 19 {} 20 - (void)takesId: (B*)a // expected-warning {{conflicting parameter types in implementation of 'takesId:'}} 21 {} 22 @end 23
