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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
30 lines
589 B
C++
30 lines
589 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/B.cppm -emit-module-interface -o %t/B.pcm
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// RUN: %clang_cc1 -std=c++20 -fprebuilt-module-path=%t %t/Use.cpp -fsyntax-only -verify
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//
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//--- templ.h
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template <typename T, typename U = T>
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class templ {};
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template <typename T, typename U = void>
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void templ_func() {}
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//--- B.cppm
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module;
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#include "templ.h"
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export module B;
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export template <typename G>
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templ<G> bar() {
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templ_func<G>();
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return {};
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}
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//--- Use.cpp
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// expected-no-diagnostics
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import B;
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auto foo() {
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return bar<int>();
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}
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