Created attachment 116881 [details] patch that adds a test case SUMMARY There's a test case attached with a positive and a negative case. Given a foo.h such as: "int foo();" And a main.cpp such as: " extern "C" { #include "foo.h" } int main() { return foo(); } " OBSERVED RESULT Project compiles but foo uses or declarations don't get highlighted. If extern "C" is removed from main.cpp it all works. EXPECTED RESULT It should work even with extern "C" SOFTWARE/OS VERSIONS Linux/KDE Plasma: master Running clang 7.0, but I've had this issue for a while. ADDITIONAL INFORMATION
Git commit a7f7c9ac6b8fc9254d7efe17adde7d95b613bb1c by Milian Wolff. Committed on 06/02/2020 at 19:23. Pushed by mwolff into branch 'master'. kdev-clang: don't skip unexposed declarations from different files clang-c doesn't expose the 'extern "C"' linkage declaration. In some cases, projects put #include statements within such linkage statements. We used to fail to create declarations for them, and thus also failed to build proper uses for any declaration. M +9 -4 plugins/clang/duchain/builder.cpp C +8 -0 plugins/clang/tests/files/extern_c.cpp [from: plugins/clang/tests/files/includes.cpp - 060% similarity] M +6 -0 plugins/clang/tests/files/includes.cpp A +2 -0 plugins/clang/tests/files/includes/asdf.h [License: Trivial file] M +31 -0 plugins/clang/tests/test_duchain.cpp M +1 -0 plugins/clang/tests/test_duchain.h https://invent.kde.org/kde/kdevelop/commit/a7f7c9ac6b8fc9254d7efe17adde7d95b613bb1c
Git commit 11cdf99776e4ac039a0351404f76ab697f862ff2 by Milian Wolff. Committed on 14/02/2020 at 10:03. Pushed by mwolff into branch '5.5'. kdev-clang: don't skip unexposed declarations from different files clang-c doesn't expose the 'extern "C"' linkage declaration. In some cases, projects put #include statements within such linkage statements. We used to fail to create declarations for them, and thus also failed to build proper uses for any declaration. (cherry picked from commit a7f7c9ac6b8fc9254d7efe17adde7d95b613bb1c) M +9 -4 plugins/clang/duchain/builder.cpp C +8 -0 plugins/clang/tests/files/extern_c.cpp [from: plugins/clang/tests/files/includes.cpp - 060% similarity] M +6 -0 plugins/clang/tests/files/includes.cpp A +2 -0 plugins/clang/tests/files/includes/asdf.h [License: Trivial file] M +31 -0 plugins/clang/tests/test_duchain.cpp M +1 -0 plugins/clang/tests/test_duchain.h https://invent.kde.org/kde/kdevelop/commit/11cdf99776e4ac039a0351404f76ab697f862ff2