forked from OSchip/llvm-project
91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
// RUN: %clang_cc1 -std=c++1z -fmodules-ts -emit-module-interface %s -o %t.0.pcm -verify -DTEST=0
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// RUN: %clang_cc1 -std=c++1z -fmodules-ts -emit-module-interface %s -o %t.1.pcm -verify -DTEST=1
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// RUN: %clang_cc1 -std=c++1z -fmodules-ts -emit-module-interface %s -fmodule-file=%t.0.pcm -o %t.2.pcm -verify -DTEST=2
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// RUN: %clang_cc1 -std=c++1z -fmodules-ts -emit-module-interface %s -fmodule-file=%t.0.pcm -o %t.3.pcm -verify -Dfoo=bar -DTEST=3
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#if TEST == 0
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// expected-no-diagnostics
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#endif
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export module foo;
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#if TEST == 2
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// expected-error@-2 {{redefinition of module 'foo'}}
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// expected-note@modules-ts.cppm:* {{loaded from}}
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#endif
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static int m;
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#if TEST == 2
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// expected-error@-2 {{redefinition of '}}
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// expected-note@-3 {{unguarded header; consider using #ifdef guards or #pragma once}}
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// FIXME: We should drop the "header from" in this diagnostic.
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// expected-note-re@modules-ts.cppm:1 {{'{{.*}}modules-ts.cppm' included multiple times, additional include site in header from module 'foo'}}
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#endif
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int n;
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#if TEST == 2
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// expected-error@-2 {{redefinition of '}}
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// expected-note@-3 {{unguarded header; consider using #ifdef guards or #pragma once}}
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// FIXME: We should drop the "header from" in this diagnostic.
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// expected-note-re@modules-ts.cppm:1 {{'{{.*}}modules-ts.cppm' included multiple times, additional include site in header from module 'foo'}}
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#endif
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#if TEST == 0
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export {
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int a;
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int b;
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constexpr int *p = &n;
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}
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export int c;
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namespace N {
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export void f() {}
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}
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export struct T {} t;
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#elif TEST == 3
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int use_a = a; // expected-error {{declaration of 'a' must be imported from module 'foo' before it is required}}
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// expected-note@-13 {{previous}}
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#undef foo
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import foo;
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export {} // expected-error {{export declaration cannot be empty}}
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export { // expected-note {{begins here}}
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; // expected-warning {{ISO C++20 does not permit an empty declaration to appear in an export block}}
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}
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export { // expected-note {{begins here}}
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static_assert(true); // expected-warning {{ISO C++20 does not permit a static_assert declaration to appear in an export block}}
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}
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int use_b = b;
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int use_n = n; // FIXME: this should not be visible, because it is not exported
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extern int n;
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static_assert(&n != p);
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#endif
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#if TEST == 1
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struct S {
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export int n; // expected-error {{expected member name or ';'}}
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export static int n; // expected-error {{expected member name or ';'}}
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};
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#endif
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// FIXME: Exports of declarations without external linkage are disallowed.
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// Exports of declarations with non-external-linkage types are disallowed.
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// Cannot export within another export. This isn't precisely covered by the
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// language rules right now, but (per personal correspondence between zygoloid
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// and gdr) is the intent.
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#if TEST == 1
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export { // expected-note {{export block begins here}}
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extern "C++" {
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namespace NestedExport {
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export { // expected-error {{appears within another export}}
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int q;
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}
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}
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}
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}
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#endif
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