data: Option to run only C/C++ preprocessor when indexing (issue 297)

* Added as checkbox to indexing start dialog
* Only shown for C/C++ projects
* Files will be marked incomplete

src/lib_cxx/data/parser/cxx/ASTActionFactory.h

@@ -6,10 +6,12 @@
 #include "data/parser/cxx/ASTAction.h"
 #include "utility/file/FileRegister.h"
 
-class ASTActionFactory : public clang::tooling::FrontendActionFactory
+class ASTActionFactory
+	: public clang::tooling::FrontendActionFactory
 {
 public:
-	explicit ASTActionFactory(std::shared_ptr<ParserClient> client, std::shared_ptr<FileRegister> fileRegister);
+	explicit ASTActionFactory(
+		std::shared_ptr<ParserClient> client, std::shared_ptr<FileRegister> fileRegister, bool preprocessorOnly);
 	virtual ~ASTActionFactory();
 
 	virtual clang::FrontendAction* create();
@@ -17,6 +19,8 @@ public:
 private:
 	std::shared_ptr<ParserClient> m_client;
 	std::shared_ptr<FileRegister> m_fileRegister;
+
+	bool m_preprocessorOnly;
 };
 
 #endif // AST_ACTION_FACTORY