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When making modules transitively visible, don't take into account whether they have missing header files. Whether a module's headers happen to be present on the local file system should make no difference to whether we make its contents visible when importing another module that re-exports it. If we have an up-to-date AST file that we can load, that's all that matters. This fixes the ability to header syntax checking for modular headers in C++20 mode (or in prior modes where -fmodules-local-submodule-visibility is enabled but -fmodules is not).
2020-04-18 11:25:15 +08:00
// RUN: %clang_cc1 -fmodules-local-submodule-visibility -fimplicit-module-maps -I%S/Inputs/missing-header-local-visibility %s
// RUN: %clang_cc1 -fmodules-local-submodule-visibility -fimplicit-module-maps -I%S/Inputs/missing-header-local-visibility -x c++-header %S/Inputs/missing-header-local-visibility/all.h
// RUN: %clang_cc1 -fmodule-name=M -std=c++2a -fimplicit-module-maps -I%S/Inputs/missing-header-local-visibility -x c++-header %s
// RUN: %clang_cc1 -fmodule-name=M -std=c++2a -fimplicit-module-maps -I%S/Inputs/missing-header-local-visibility -x c++-header %S/Inputs/missing-header-local-visibility/all.h
#include "a.h"
#include "b.h"