clang/test/Modules/GH109879-1.cpp

   1 // RUN: rm -rf %t
   2 // RUN: mkdir -p %t
   3 // RUN: split-file %s %t
   4 //
   5 // RUN: %clang_cc1 -std=c++20 %t/A.cppm -emit-module-interface -o %t/A.pcm
   6 // RUN: %clang_cc1 -std=c++20 %t/B.cppm -fprebuilt-module-path=%t -emit-module-interface -o %t/B.pcm
   7 // RUN: %clang_cc1 -fsyntax-only -std=c++20 -fprebuilt-module-path=%t -verify %t/C.cpp
   8
   9 //--- A.cppm
  10 export module A;
  11 export extern "C" void foo(struct Bar);
  12
  13 //--- B.cppm
  14 module;
  15 import A;
  16 export module B;
  17
  18 //--- C.cpp
  19 import B;
  20 struct Bar {};
  21 void test() {
  22   foo(Bar());
  23   // expected-error@-1 {{declaration of 'foo' must be imported}}
  24   // expected-note@A.cppm:2 {{declaration here is not visible}}
  25 }