clang/test/Modules/using-decl-friend-2.cpp

   1 // RUN: %clang_cc1 -fmodules %s -verify
   2 // expected-no-diagnostics
   3
   4 #pragma clang module build A
   5 module A {}
   6 #pragma clang module contents
   7 #pragma clang module begin A
   8 namespace N { class X; }
   9 #pragma clang module end
  10 #pragma clang module endbuild
  11
  12 #pragma clang module build B
  13 module B {}
  14 #pragma clang module contents
  15 #pragma clang module begin B
  16 namespace N { class Friendly { friend class X; }; }
  17 #pragma clang module end
  18 #pragma clang module endbuild
  19
  20 #pragma clang module build C
  21 module C {}
  22 #pragma clang module contents
  23 #pragma clang module begin C
  24 #pragma clang module import A
  25 void use_X(N::X *p);
  26 #pragma clang module import B
  27 // UsingShadowDecl names the friend declaration
  28 using N::X;
  29 #pragma clang module end
  30 #pragma clang module endbuild
  31
  32 #pragma clang module import B
  33 namespace N { class AlsoFriendly { friend class X; }; }
  34 #pragma clang module import A
  35 #pragma clang module import C
  36 // The friend declaration from N::Friendly is now the first in the redecl
  37 // chain, so is not ordinarily visible. We need the IDNS of the UsingShadowDecl
  38 // to still consider it to be visible, though.
  39 X *p;