9c04851cf5
This patch introduces a new kind of ModuleOwnershipKind as ReachableWhenImported. This intended the status for reachable described at: https://eel.is/c++draft/module.reach#3. Note that this patch is not intended to support all semantics about reachable semantics. For example, this patch didn't implement discarded declarations in GMF. (https://eel.is/c++draft/module.global.frag#3). This fixes: https://bugs.llvm.org/show_bug.cgi?id=52281 and https://godbolt.org/z/81f3ocjfW. Reviewed By: rsmith, iains Differential Revision: https://reviews.llvm.org/D113545
19 lines
538 B
C++
19 lines
538 B
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/A.cppm -emit-module-interface -o %t/A.pcm
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// RUN: %clang_cc1 -std=c++20 -fprebuilt-module-path=%t %t/B.cppm -fsyntax-only -verify
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//
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//--- A.cppm
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export module A;
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struct X {};
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export using Y = X;
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//--- B.cppm
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export module B;
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import A;
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Y y; // OK, definition of X is reachable
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X x; // expected-error {{declaration of 'X' must be imported from module 'A' before it is required}}
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// expected-note@* {{declaration here is not visible}}
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