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// RUN: rm -rf %t
// RUN: mkdir -p %t
// RUN: %clang_cc1 -std=c++2a -x c++-header %S/Inputs/header.h -emit-header-module -fmodule-name=FIXME -o %t/h.pcm
// RUN: %clang_cc1 -std=c++2a %s -DX_INTERFACE -emit-module-interface -o %t/x.pcm
// RUN: %clang_cc1 -std=c++2a %s -DY_INTERFACE -emit-module-interface -o %t/y.pcm
// RUN: %clang_cc1 -std=c++2a %s -DINTERFACE -fmodule-file=%t/x.pcm -fmodule-file=%t/y.pcm -emit-module-interface -o %t/m.pcm
// RUN: %clang_cc1 -std=c++2a %s -DIMPLEMENTATION -I%S/Inputs -fmodule-file=%t/h.pcm -fmodule-file=%t/m.pcm -verify
// RUN: %clang_cc1 -std=c++2a %s -DUSER -I%S/Inputs -fmodule-file=%t/h.pcm -fmodule-file=%t/m.pcm -verify
#if defined(X_INTERFACE)
export module X;
export int x;
#elif defined(Y_INTERFACE)
export module Y;
export int y;
#elif defined(INTERFACE)
export module p2;
export import X;
import Y; // not exported
namespace A {
int f();
export int g();
int h();
namespace inner {}
}
export namespace B {
namespace inner {}
}
namespace B {
int f();
}
namespace C {}
namespace D { int f(); }
export namespace D {}
#elif defined(IMPLEMENTATION)
module p2;
import "header.h";
// Per [basic.scope.namespace]/2.3, exportedness has no impact on visibility
// within the same module.
//
// expected-no-diagnostics
void use() {
A::f();
A::g();
A::h();
using namespace A::inner;
using namespace B;
using namespace B::inner;
B::f();
f();
using namespace C;
D::f();
}
int use_header() { return foo + bar::baz(); }
#elif defined(USER)
import p2;
import "header.h";
void use() {
// namespace A is implicitly exported by the export of A::g.
A::f(); // expected-error {{no member named 'f' in namespace 'A'}}
A::g();
A::h(); // expected-error {{no member named 'h' in namespace 'A'}}
using namespace A::inner; // expected-error {{expected namespace name}}
// namespace B and B::inner are explicitly exported
using namespace B;
using namespace B::inner;
B::f(); // expected-error {{no member named 'f' in namespace 'B'}}
f(); // expected-error {{undeclared identifier 'f'}}
// namespace C is not exported
using namespace C; // expected-error {{expected namespace name}}
// namespace D is exported, but D::f is not
D::f(); // expected-error {{no member named 'f' in namespace 'D'}}
}
int use_header() { return foo + bar::baz(); }
#else
#error unknown mode
#endif
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