c5cb1117e1
Close https://github.com/llvm/llvm-project/issues/60775 Previously, we will mark all the declarations in the GMF as not visible to other module units. But this is too strict and the users may meet problems during the template instantiation like the above exampel shows. The patch addresseds the problem.
98 lines
2.0 KiB
C++
98 lines
2.0 KiB
C++
// https://github.com/llvm/llvm-project/issues/60775
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//
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// 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 -I%t -emit-module-interface -o %t/a.pcm
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// RUN: %clang_cc1 -std=c++20 %t/b.cpp -fmodule-file=a=%t/a.pcm -verify -fsyntax-only
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// RUN: %clang_cc1 -std=c++20 %t/c.cppm -I%t -emit-module-interface -o %t/c.pcm
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// RUN: %clang_cc1 -std=c++20 %t/d.cppm -emit-module-interface -fmodule-file=c=%t/c.pcm -o %t/d.pcm
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// RUN: %clang_cc1 -std=c++20 %t/e.cpp -fmodule-file=d=%t/d.pcm -verify -fsyntax-only
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// RUN: %clang_cc1 -std=c++20 %t/f.cppm -emit-module-interface -fmodule-file=c=%t/c.pcm -o %t/f.pcm
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// RUN: %clang_cc1 -std=c++20 %t/g.cpp -fmodule-file=f=%t/f.pcm -verify -fsyntax-only
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//--- initializer_list.h
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namespace std {
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typedef decltype(sizeof(int)) size_t;
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template<typename T> struct initializer_list {
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initializer_list(const T *, size_t);
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T* begin();
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T* end();
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};
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}
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//--- a.cppm
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module;
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#include "initializer_list.h"
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export module a;
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export template<typename>
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void a() {
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for (int x : {0}) {
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}
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}
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//--- b.cpp
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// expected-no-diagnostics
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import a;
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void b() {
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a<int>();
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}
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//--- c.cppm
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module;
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#include "initializer_list.h"
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export module c;
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namespace std {
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export using std::initializer_list;
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}
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//--- d.cppm
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export module d;
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import c;
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export template<typename>
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void d() {
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for (int x : {0}) {
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}
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}
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//--- e.cpp
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import d;
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void e() {
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for (int x : {0}) { // expected-error {{cannot deduce type of initializer list because std::initializer_list was not found; include <initializer_list>}}
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}
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}
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template <typename>
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void ee() {
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for (int x : {0}) { // expected-error {{cannot deduce type of initializer list because std::initializer_list was not found; include <initializer_list>}}
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}
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}
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void eee() {
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ee<int>();
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d<int>();
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}
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//--- f.cppm
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export module f;
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export import c;
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//--- g.cpp
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// expected-no-diagnostics
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import f;
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void g() {
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for (int x : {0}) {
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}
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}
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template <typename>
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void gg() {
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for (int x : {0}) {
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}
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}
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void ggg() {
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gg<int>();
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}
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