clang/test/Modules/tag-injection.cpp

   1 // RUN: rm -rf %t
   2 // RUN: mkdir %t
   3 // RUN: echo 'struct tm;' > %t/a.h
   4 // RUN: echo 'struct X {}; void foo(struct tm*);' > %t/b.h
   5 // RUN: echo 'module X { module a { header "a.h" } module b { header "b.h" } }' > %t/x.modulemap
   6 // RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t -x c++ -fmodule-map-file=%t/x.modulemap %s -I%t -verify -std=c++11
   7 // RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t -x c++ -fmodule-map-file=%t/x.modulemap %s -I%t -verify -fmodules-local-submodule-visibility -std=c++11
   8
   9 #include "a.h"
  10
  11 using ::tm;
  12
  13 struct A {
  14   // This use of 'struct X' makes the declaration (but not definition) of X visible.
  15   virtual void f(struct X *p);
  16 };
  17
  18 namespace N {
  19   struct B : A {
  20     void f(struct X *q) override;
  21   };
  22 }
  23
  24 X x; // expected-error {{'X' must be defined before it is used}}
  25 // expected-note@b.h:1 {{here}}