blob: ddd0121b0d51f63fa4a4004dc8a81c32393e5348 [file] [log] [blame]
/* Ensure that we indeed cannot obtain the value of a message send
if the chosen method signature returns 'void'. There used to
exist a cheesy hack that allowed it. While at it, check that
the first lexically occurring method signature gets picked
when sending messages to 'id'. */
/* Contributed by Ziemowit Laski <zlaski@apple.com> */
/* { dg-do compile } */
#include <objc/objc.h>
@interface Object1
- (void)initWithData:(Object1 *)data;
@end
@interface Object2
- (id)initWithData:(Object1 *)data;
@end
@interface Object3
- (id)initWithData:(Object2 *)data;
@end
void foo(void) {
id obj1, obj2 = 0;
obj2 = [obj1 initWithData: obj2];
/* { dg-warning "multiple methods named .\\-initWithData:. found" "" { target *-*-* } 25 } */
/* { dg-message "using .\\-\\(void\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 12 } */
/* { dg-message "also found .\\-\\(id\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 16 } */
/* { dg-message "also found .\\-\\(id\\)initWithData:\\(Object2 \\*\\)data." "" { target *-*-* } 20 } */
/* The following error is a consequence of picking the "wrong" method signature. */
/* { dg-error "void value not ignored as it ought to be" "" { target *-*-* } 25 } */
}