I am using the Clang::Tooling library to parse some header files. I can't seem to parse properly due to clang not pre-processing header files and other pre-processor stuff. How can I tell Clang::Tooling to pre-process files before parsing. Cheers. This is my current code for invoking my tool.
/*static*/ SAST SAST::Parse( CFile& HeaderFile, const TArray<CString>& CommandLineArgs )
{
//Our Custom Formated Ast Data Struct
SAST AST;
//Parse Command-Line Args.
clang::tooling::CommandLineArguments CommandArgs;
for (auto& Item : CommandLineArgs)
CommandArgs.push_back(Item.GetRaw());
//Traverse And Collect AST
auto SourceText = HeaderFile.GetText();
auto SourceFileName = HeaderFile.GetFullName();
clang::tooling::runToolOnCodeWithArgs(new CollectASTAction(&AST), SourceText.GetRawConst(), CommandArgs);
return AST;
}
Apparently it actually is trying to pre-process the file. I couldn't see any errors reported due to no console window open. However, when I inspected the llvm::raw_fd_ostream class's write() method with a break-point, I could see that errors were being written such as "FileXXX.h could not be found" . So it simply couldn't find the #include files. That's why pre-processing wasn't performed/completed. Thanks everyone. This solves my day long journey.
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