dc4e85bd79
Close https://github.com/llvm/llvm-project/issues/62707 As we discussed before, we'll forbid the use of implicit generated path for C++20 modules. And as I mentioned in https://github.com/llvm/llvm-project/issues/62707, we've emitted a warning for clang17 and we'll make it a hard error in clang18. And the patch addresses the decision.
28 lines
659 B
C++
28 lines
659 B
C++
// RUN: rm -rf %t
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// RUN: split-file %s %t
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// RUN: cd %t
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//
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/b.cppm -o %t/b.pcm
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface %t/a.cppm -fmodule-file=b=%t/b.pcm \
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// RUN: -o %t/a.pcm
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// RUN: %clang_cc1 -std=c++20 %t/user.cpp -fmodule-file=a=%t/a.pcm -verify -fsyntax-only
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//--- b.cppm
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export module b;
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export int b() {
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return 43;
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}
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//--- a.cppm
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export module a;
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import b;
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export int a() {
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return b() + 43;
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}
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//--- user.cpp
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import a; // expected-error {{failed to find module file for module 'b'}}
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int use() {
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return a(); // expected-error {{use of undeclared identifier 'a'}}
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}
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