Tool to comment out all function (and method) implementations in specific files.
Also tutorial for clang's libtooling for source to source transformation.
echo 'void f(){ int x=1; }' > main.cpp
clang-mute main.cpp
cat main.cpp
void f(){
#if 0
int x=1;
#endif
}
clang-mute target1.cpp [target2.cpp] [-- -Iincludepath -Ddefinition]
To use on real project, for example qt application, you need to create compilation database or compile flags file to provide all necessary includepaths to the tool.
git clone https://github.com/mugiseyebrows/cmake-qt-sample.git
cd cmake-qt-sample
mkdir build
cd build
# to fix file not found errors add missing includepaths to CMAKE_CXX_FLAGS variable
cmake -G Ninja -D CMAKE_CXX_FLAGS="-I/usr/lib/gcc/x86_64-linux-gnu/11/include" ..
# to generate ui_*.h files compile the app
ninja app
cmake . -DCMAKE_EXPORT_COMPILE_COMMANDS=1
clang-mute ../mainwindow.cppAs alternative to compilation database you can specify includepaths and other compiler flags after --
clang-mute ../mainwindow.cpp -- -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_WIDGETS_LIB -I/home/overloop/cmake-qt-sample/build -I/home/overloop/cmake-qt-sample -I/home/overloop/cmake-qt-sample/build/app_autogen/include -isystem /usr/include/x86_64-linux-gnu/qt5 -isystem /usr/include/x86_64-linux-gnu/qt5/QtWidgets -isystem /usr/include/x86_64-linux-gnu/qt5/QtGui -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore -isystem /usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -I/usr/lib/gcc/x86_64-linux-gnu/11/include -fPICYou can store flags in compile_flags.txt file, one per line.
echo -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_WIDGETS_LIB -I/home/overloop/cmake-qt-sample/build -I/home/overloop/cmake-qt-sample -I/home/overloop/cmake-qt-sample/build/app_autogen/include -isystem /usr/include/x86_64-linux-gnu/qt5 -isystem /usr/include/x86_64-linux-gnu/qt5/QtWidgets -isystem /usr/include/x86_64-linux-gnu/qt5/QtGui -isystem /usr/include/x86_64-linux-gnu/qt5/QtCore -isystem /usr/lib/x86_64-linux-gnu/qt5/mkspecs/linux-g++ -I/usr/lib/gcc/x86_64-linux-gnu/11/include -fPIC | tr ' ' '\n' > compile_flags.txt
clang-mute ../mainwindow.cppTo compile you need llvm-project distribution which you can git clone from repository or curl from llvm-project releases.
See also: build.sh file and build.bat file.
sudo apt install build-essential cmake ninja-build git
git clone --depth 1 https://github.com/llvm/llvm-project.git
cd llvm-project/clang/tools
git clone https://github.com/mugiseyebrows/clang-mute.git
echo "add_clang_subdirectory(clang-mute)" >> CMakeLists.txt
cd ../..
mkdir build
cd build
cmake -DLLVM_ENABLE_PROJECTS="clang" -DCMAKE_BUILD_TYPE=Release -G Ninja ../llvm
cmake --build . --target clang-mute
sudo cp bin/clang-mute /usr/bin(Common steps for MinGW and Visual Studio)
- Install ninja
- Add ninja to
%PATH% - Clone sources
git clone --depth 1 https://github.com/llvm/llvm-project.git
cd llvm-project\clang\tools
git clone https://github.com/mugiseyebrows/clang-mute.git
echo add_clang_subdirectory(clang-mute) >> CMakeLists.txt
cd ..\..
mkdir build
cd build- Use visual studio command prompt or call
vcvars64.bat - Build using cmake
call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat"
cmake -DLLVM_ENABLE_PROJECTS="clang" -DCMAKE_BUILD_TYPE=Release -G Ninja ../llvm
cmake --build . --target clang-mute- Add compiler to
%PATH% - Build using cmake
cmake -DLLVM_ENABLE_PROJECTS="clang" -DCMAKE_BUILD_TYPE=Release -G Ninja -D CMAKE_C_COMPILER=gcc -D CMAKE_CXX_COMPILER=g++ ../llvm
cmake --build . --target clang-mute
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