src/llvm/tools/clang/test/SemaObjC/attr-objc-gc.m

   1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -verify %s
   2 static id __attribute((objc_gc(weak))) a;
   3 static id __attribute((objc_gc(strong))) b;
   4
   5 static id __attribute((objc_gc())) c; // expected-error{{'objc_gc' attribute requires parameter 1 to be a string}}
   6 static id __attribute((objc_gc(123))) d; // expected-error{{'objc_gc' attribute requires parameter 1 to be a string}}
   7 static id __attribute((objc_gc(foo, 456))) e; // expected-error{{attribute takes one argument}}
   8 static id __attribute((objc_gc(hello))) f; // expected-warning{{'objc_gc' attribute argument not supported: 'hello'}}
   9
  10 static int __attribute__((objc_gc(weak))) g; // expected-warning {{'objc_gc' only applies to pointer types; type here is 'int'}}
  11
  12 static __weak int h; // expected-warning {{'__weak' only applies to pointer types; type here is 'int'}}
  13
  14 // TODO: it would be great if this reported as __weak
  15 #define WEAK __weak
  16 static WEAK int h; // expected-warning {{'objc_gc' only applies to pointer types; type here is 'int'}}
  17
  18 /* expected-warning {{'__weak' only applies to pointer types; type here is 'int'}}*/ static __we\
  19 ak int i;
  20
  21 // rdar://problem/9126213
  22 void test2(id __attribute((objc_gc(strong))) *strong,
  23            id __attribute((objc_gc(weak))) *weak) {
  24   void *opaque;
  25   opaque = strong;
  26   strong = opaque;
  27
  28   opaque = weak;
  29   weak = opaque;
  30 }