diff options
Diffstat (limited to 'gcc/testsuite/obj-c++.dg/method-16.mm')
| -rw-r--r-- | gcc/testsuite/obj-c++.dg/method-16.mm | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/testsuite/obj-c++.dg/method-16.mm b/gcc/testsuite/obj-c++.dg/method-16.mm new file mode 100644 index 000000000..aceefcdc7 --- /dev/null +++ b/gcc/testsuite/obj-c++.dg/method-16.mm @@ -0,0 +1,34 @@ + +/* 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 *-*-* } 26 } */ + /* { dg-message "using .\\-\\(void\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 13 } */ + /* { dg-message "also found .\\-\\(id\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 17 } */ + /* { dg-message "also found .\\-\\(id\\)initWithData:\\(Object2 \\*\\)data." "" { target *-*-* } 21 } */ + + /* The following error is a consequence of picking the "wrong" method signature. */ + /* { dg-error "void value not ignored as it ought to be" "" { target *-*-* } 26 } */ +} |