bf9ab0b7c3
Fixed a crash for the attached test case due to we missed to emit the deduction guide. The reason is, the deduction guide is attached to the export-decl in the imported module. So we won't emit it by traversing the AST of the current TU.
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
// RUN: rm -rf %t
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// RUN: mkdir -p %t
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// RUN: split-file %s %t
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//
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// RUN: %clang_cc1 -std=c++20 %t/invocable.cppm -emit-module-interface -o %t/invocable.pcm
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// RUN: %clang_cc1 -std=c++20 %t/lambda.cppm -emit-module-interface -o %t/lambda.pcm -fprebuilt-module-path=%t
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// RUN: %clang_cc1 -std=c++20 %t/test.cc -fprebuilt-module-path=%t -fsyntax-only -verify
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//
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// RUN: %clang_cc1 -std=c++20 %t/invocable.cppm -emit-reduced-module-interface -o %t/invocable.pcm
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// RUN: %clang_cc1 -std=c++20 %t/lambda.cppm -emit-reduced-module-interface -o %t/lambda.pcm -fprebuilt-module-path=%t
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// RUN: %clang_cc1 -std=c++20 %t/test.cc -fprebuilt-module-path=%t -fsyntax-only -verify
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//--- invocable.cppm
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export module invocable;
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export template <class _Fn, class... _Args>
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concept invocable = requires(_Fn&& __fn, _Args&&... __args) {
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_Fn(__args...);
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};
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export template <class _Fn, class _Args>
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constexpr bool is_callable(_Fn&& __fn, _Args&& __args) {
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return invocable<_Fn, _Args>;
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}
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export template <class _Fn>
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struct Callable : _Fn {
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constexpr explicit Callable(_Fn &&__fn) : _Fn(static_cast<_Fn&&>(__fn)) {}
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template <class _Args>
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constexpr auto operator()(_Args&& __args) {
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return _Fn(__args);
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}
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};
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//--- lambda.cppm
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export module lambda;
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import invocable;
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export constexpr auto l = Callable([](auto &&x){});
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//--- test.cc
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// expected-no-diagnostics
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import invocable;
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import lambda;
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static_assert(is_callable(l, 4) == true);
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