clang/test/SemaCXX/attr-declspec-ignored.cpp

   1 // RUN: %clang_cc1 %s -verify -fsyntax-only
   2
   3 namespace test1 {
   4   __attribute__((visibility("hidden")))  __attribute__((aligned)) class A; // expected-warning{{attribute 'visibility' is ignored, place it after "class" to apply attribute to type declaration}} \
   5   // expected-warning{{attribute 'aligned' is ignored, place it after "class" to apply attribute to type declaration}}
   6   __attribute__((visibility("hidden")))  __attribute__((aligned)) struct B; // expected-warning{{attribute 'visibility' is ignored, place it after "struct" to apply attribute to type declaration}} \
   7   // expected-warning{{attribute 'aligned' is ignored, place it after "struct" to apply attribute to type declaration}}
   8   __attribute__((visibility("hidden")))  __attribute__((aligned)) union C; // expected-warning{{attribute 'visibility' is ignored, place it after "union" to apply attribute to type declaration}} \
   9   // expected-warning{{attribute 'aligned' is ignored, place it after "union" to apply attribute to type declaration}}
  10   __attribute__((visibility("hidden")))  __attribute__((aligned)) enum D {D}; // expected-warning{{attribute 'visibility' is ignored, place it after "enum" to apply attribute to type declaration}} \
  11   // expected-warning{{attribute 'aligned' is ignored, place it after "enum" to apply attribute to type declaration}}
  12
  13   // Test that we get the same warnings for type declarations nested in a record.
  14   struct X {
  15     __attribute__((visibility("hidden")))  __attribute__((aligned)) class A; // expected-warning{{attribute 'visibility' is ignored, place it after "class" to apply attribute to type declaration}} \
  16     // expected-warning{{attribute 'aligned' is ignored, place it after "class" to apply attribute to type declaration}}
  17     __attribute__((visibility("hidden")))  __attribute__((aligned)) struct B; // expected-warning{{attribute 'visibility' is ignored, place it after "struct" to apply attribute to type declaration}} \
  18     // expected-warning{{attribute 'aligned' is ignored, place it after "struct" to apply attribute to type declaration}}
  19     __attribute__((visibility("hidden")))  __attribute__((aligned)) union C; // expected-warning{{attribute 'visibility' is ignored, place it after "union" to apply attribute to type declaration}} \
  20     // expected-warning{{attribute 'aligned' is ignored, place it after "union" to apply attribute to type declaration}}
  21     __attribute__((visibility("hidden")))  __attribute__((aligned)) enum D {D}; // expected-warning{{attribute 'visibility' is ignored, place it after "enum" to apply attribute to type declaration}} \
  22     // expected-warning{{attribute 'aligned' is ignored, place it after "enum" to apply attribute to type declaration}}
  23
  24     // Also test [[]] attribute syntax. (On a non-nested declaration, these
  25     // generate a hard "misplaced attributes" error, which we test for
  26     // elsewhere.)
  27     [[gnu::visibility("hidden")]]  [[gnu::aligned]] class E; // expected-warning{{attribute 'visibility' is ignored, place it after "class" to apply attribute to type declaration}} \
  28     // expected-warning{{attribute 'aligned' is ignored, place it after "class" to apply attribute to type declaration}}
  29     [[gnu::visibility("hidden")]]  [[gnu::aligned]] struct F; // expected-warning{{attribute 'visibility' is ignored, place it after "struct" to apply attribute to type declaration}} \
  30     // expected-warning{{attribute 'aligned' is ignored, place it after "struct" to apply attribute to type declaration}}
  31     [[gnu::visibility("hidden")]]  [[gnu::aligned]] union G; // expected-warning{{attribute 'visibility' is ignored, place it after "union" to apply attribute to type declaration}} \
  32     // expected-warning{{attribute 'aligned' is ignored, place it after "union" to apply attribute to type declaration}}
  33     [[gnu::visibility("hidden")]]  [[gnu::aligned]] enum H {H}; // expected-warning{{attribute 'visibility' is ignored, place it after "enum" to apply attribute to type declaration}} \
  34     // expected-warning{{attribute 'aligned' is ignored, place it after "enum" to apply attribute to type declaration}}
  35   };
  36 }
  37
  38 namespace test2 {
  39   __attribute__((visibility("hidden")))  __attribute__((aligned)) class A {} a;
  40   __attribute__((visibility("hidden")))  __attribute__((aligned)) struct B {} b;
  41   __attribute__((visibility("hidden")))  __attribute__((aligned)) union C {} c;
  42   __attribute__((visibility("hidden")))  __attribute__((aligned)) enum D {D} d;
  43
  44   struct X {
  45     __attribute__((visibility("hidden")))  __attribute__((aligned)) class A {} a;
  46     __attribute__((visibility("hidden")))  __attribute__((aligned)) struct B {} b;
  47     __attribute__((visibility("hidden")))  __attribute__((aligned)) union C {} c;
  48     __attribute__((visibility("hidden")))  __attribute__((aligned)) enum D {D} d;
  49
  50     [[gnu::visibility("hidden")]]  [[gnu::aligned]] class E {} e;
  51     [[gnu::visibility("hidden")]]  [[gnu::aligned]] struct F {} f;
  52     [[gnu::visibility("hidden")]]  [[gnu::aligned]] union G {} g;
  53     [[gnu::visibility("hidden")]]  [[gnu::aligned]] enum H {H} h;
  54   };
  55 }