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/* Ensure that we indeed cannot obtain the value of a message send
|
/* Ensure that we indeed cannot obtain the value of a message send
|
if the chosen method signature returns 'void'. There used to
|
if the chosen method signature returns 'void'. There used to
|
exist a cheesy hack that allowed it. While at it, check that
|
exist a cheesy hack that allowed it. While at it, check that
|
the first lexically occurring method signature gets picked
|
the first lexically occurring method signature gets picked
|
when sending messages to 'id'. */
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when sending messages to 'id'. */
|
/* Contributed by Ziemowit Laski */
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/* Contributed by Ziemowit Laski */
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/* { dg-do compile } */
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/* { dg-do compile } */
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#include
|
#include
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|
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@interface Object1
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@interface Object1
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- (void)initWithData:(Object1 *)data;
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- (void)initWithData:(Object1 *)data;
|
@end
|
@end
|
|
|
@interface Object2
|
@interface Object2
|
- (id)initWithData:(Object1 *)data;
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- (id)initWithData:(Object1 *)data;
|
@end
|
@end
|
|
|
@interface Object3
|
@interface Object3
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- (id)initWithData:(Object2 *)data;
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- (id)initWithData:(Object2 *)data;
|
@end
|
@end
|
|
|
void foo(void) {
|
void foo(void) {
|
id obj1, obj2 = 0;
|
id obj1, obj2 = 0;
|
obj2 = [obj1 initWithData: obj2];
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obj2 = [obj1 initWithData: obj2];
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/* { dg-warning "multiple methods named .\\-initWithData:. found" "" { target *-*-* } 26 } */
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/* { dg-warning "multiple methods named .\\-initWithData:. found" "" { target *-*-* } 26 } */
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/* { dg-warning "using .\\-\\(void\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 13 } */
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/* { dg-warning "using .\\-\\(void\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 13 } */
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/* { dg-warning "also found .\\-\\(id\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 17 } */
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/* { dg-warning "also found .\\-\\(id\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } 17 } */
|
/* { dg-warning "also found .\\-\\(id\\)initWithData:\\(Object2 \\*\\)data." "" { target *-*-* } 21 } */
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/* { dg-warning "also found .\\-\\(id\\)initWithData:\\(Object2 \\*\\)data." "" { target *-*-* } 21 } */
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|
|
/* The following error is a consequence of picking the "wrong" method signature. */
|
/* 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 } */
|
/* { dg-error "void value not ignored as it ought to be" "" { target *-*-* } 26 } */
|
}
|
}
|
|
|
