| 1 | // RUN: %clang_cc1 -fmodules -verify -fno-modules-error-recovery -fno-spell-checking %s |
| 2 | // RUN: %clang_cc1 -fmodules -verify -fno-modules-error-recovery -DONLY_Y %s |
| 3 | |
| 4 | #pragma clang module build a |
| 5 | module a { |
| 6 | explicit module x {} |
| 7 | explicit module y {} |
| 8 | } |
| 9 | #pragma clang module contents |
| 10 | #pragma clang module begin a.x |
| 11 | namespace N { |
| 12 | template<typename T> extern int f(T) { return 0; } |
| 13 | } |
| 14 | #pragma clang module end |
| 15 | |
| 16 | #pragma clang module begin a.y |
| 17 | #pragma clang module import a.x |
| 18 | using N::f; |
| 19 | #pragma clang module end |
| 20 | #pragma clang module endbuild |
| 21 | |
| 22 | namespace N { struct A {}; } |
| 23 | struct B {}; |
| 24 | |
| 25 | #ifndef ONLY_Y |
| 26 | #pragma clang module import a.x |
| 27 | void test1() { |
| 28 | f(N::A()); |
| 29 | f(B()); // expected-error {{use of undeclared identifier 'f'}} |
| 30 | } |
| 31 | #else |
| 32 | // expected-no-diagnostics |
| 33 | #endif |
| 34 | |
| 35 | #pragma clang module import a.y |
| 36 | void test2() { |
| 37 | // These are OK even if a.x is not imported. |
| 38 | f(N::A()); |
| 39 | f(B()); |
| 40 | } |
| 41 | |