Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/objc.dg/method-11.m @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 04ced10e8804 |
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/* 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; /* { dg-line Object1_initWithData } */ @end @interface Object2 - (id)initWithData:(Object1 *)data; /* { dg-line Object2_initWithData } */ @end @interface Object3 - (id)initWithData:(Object2 *)data; /* { dg-line Object3_initWithData } */ @end void foo(void) { id obj1, obj2 = 0; obj2 = [obj1 initWithData: obj2]; /* { dg-line initWithData_message } */ /* { dg-warning "multiple methods named .\\-initWithData:. found" "" { target *-*-* } .-1 } */ /* { dg-message "using .\\-\\(void\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } Object1_initWithData } */ /* { dg-message "also found .\\-\\(id\\)initWithData:\\(Object1 \\*\\)data." "" { target *-*-* } Object2_initWithData } */ /* { dg-message "also found .\\-\\(id\\)initWithData:\\(Object2 \\*\\)data." "" { target *-*-* } Object3_initWithData } */ /* The following error is a consequence of picking the "wrong" method signature. */ /* { dg-error "void value not ignored as it ought to be" "" { target *-*-* } initWithData_message } */ }