55 lines
3.1 KiB
C++
55 lines
3.1 KiB
C++
// RUN: %clang_cc1 -std=c++2a %s -verify -pedantic-errors
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export module p3;
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namespace A { int ns_mem; }
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// An exported declaration shall declare at least one name.
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export; // expected-error {{empty declaration cannot be exported}}
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export static_assert(true); // expected-error {{static_assert declaration cannot be exported}}
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export using namespace A; // expected-error {{ISO C++20 does not permit using directive to be exported}}
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export { // expected-note 3{{export block begins here}}
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; // expected-error {{ISO C++20 does not permit an empty declaration to appear in an export block}}
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static_assert(true); // expected-error {{ISO C++20 does not permit a static_assert declaration to appear in an export block}}
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using namespace A; // expected-error {{ISO C++20 does not permit using directive to be exported}}
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}
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export struct {}; // expected-error {{must be class member}} expected-error {{GNU extension}} expected-error {{does not declare anything}}
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export struct {} struct_;
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export union {}; // expected-error {{must be declared 'static'}} expected-error {{does not declare anything}}
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export union {} union_;
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export enum {}; // expected-error {{does not declare anything}}
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export enum {} enum_;
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export enum E : int;
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export typedef int; // expected-error {{typedef requires a name}}
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export static union {}; // expected-error {{does not declare anything}}
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export asm(""); // expected-error {{asm declaration cannot be exported}}
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export namespace B = A;
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export using A::ns_mem;
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namespace A {
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export using A::ns_mem;
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}
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export using Int = int;
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export extern "C++" {} // expected-error {{ISO C++20 does not permit a declaration that does not introduce any names to be exported}}
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export extern "C++" { extern "C" {} } // expected-error {{ISO C++20 does not permit a declaration that does not introduce any names to be exported}}
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export extern "C++" { extern "C" int extern_c; }
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export { // expected-note {{export block}}
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extern "C++" int extern_cxx;
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extern "C++" {} // expected-error {{ISO C++20 does not permit a declaration that does not introduce any names to be exported}}
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}
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export [[]]; // FIXME (bad diagnostic text): expected-error {{empty declaration cannot be exported}}
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export [[example::attr]]; // FIXME: expected-error {{empty declaration cannot be exported}} expected-warning {{unknown attribute 'attr'}}
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// [...] shall not declare a name with internal linkage
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export static int a; // expected-error {{declaration of 'a' with internal linkage cannot be exported}}
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export static int b(); // expected-error {{declaration of 'b' with internal linkage cannot be exported}}
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export namespace { int c; } // expected-error {{declaration of 'c' with internal linkage cannot be exported}}
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namespace { // expected-note {{here}}
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export int d; // expected-error {{export declaration appears within anonymous namespace}}
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}
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export template<typename> static int e; // expected-error {{declaration of 'e' with internal linkage cannot be exported}}
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export template<typename> static int f(); // expected-error {{declaration of 'f' with internal linkage cannot be exported}}
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export const int k = 5;
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export static union { int n; }; // expected-error {{declaration of 'n' with internal linkage cannot be exported}}
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