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// RUN: %clang_cc1 -fmodules -verify -fno-modules-error-recovery -fno-spell-checking %s
// RUN: %clang_cc1 -fmodules -verify -fno-modules-error-recovery -DONLY_Y %s
#pragma clang module build a
module a {
explicit module x {}
explicit module y {}
}
#pragma clang module contents
#pragma clang module begin a.x
namespace N {
template<typename T> extern int f(T) { return 0; }
}
#pragma clang module end
#pragma clang module begin a.y
#pragma clang module import a.x
using N::f;
#pragma clang module end
#pragma clang module endbuild
namespace N { struct A {}; }
struct B {};
#ifndef ONLY_Y
#pragma clang module import a.x
void test1() {
f(N::A());
f(B()); // expected-error {{use of undeclared identifier 'f'}}
}
#else
// expected-no-diagnostics
#endif
#pragma clang module import a.y
void test2() {
// These are OK even if a.x is not imported.
f(N::A());
f(B());
}