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