Subversion Repositories openrisc_2011-10-31

/* 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-warning "using .\\-\\(void\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 12 } */

     /* { dg-warning "also found .\\-\\(id\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 16 } */

     /* { dg-warning "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 } */

}