data, ui: comment handling

* CodeView displays comments as atomic regions. They are either displayed as a whole or not at all. Do nothing halfway!
* added CommentHandler that handles comments detected by clang.
* stored CommentLocations in database.

src/lib/data/parser/ParserClient.h

@@ -145,6 +145,8 @@ public:
 		const ParseLocation& location, const NameHierarchy& macroNameHierarchy, const ParseLocation& scopeLocation) = 0;
 	virtual Id onMacroExpandParsed(
 		const ParseLocation& location, const NameHierarchy& macroNameHierarchy) = 0;
+
+	virtual Id onCommentParsed(const ParseLocation& location) = 0;
 };
 
 #endif // PARSER_CLIENT_H

src/lib/data/parser/cxx/ASTAction.cpp

@@ -2,11 +2,13 @@
 
 #include "clang/Lex/Preprocessor.h"
 
+#include "data/parser/cxx/CommentHandler.h"
 #include "data/parser/cxx/PreprocessorCallbacks.h"
 
 ASTAction::ASTAction(ParserClient* client, FileRegister* fileRegister)
 	: m_client(client)
 	, m_fileRegister(fileRegister)
+	, m_commentHandler(client)
 {
 }
 
@@ -24,7 +26,7 @@ bool ASTAction::BeginSourceFileAction(clang::CompilerInstance& compiler, llvm::S
 	clang::Preprocessor& preprocessor = compiler.getPreprocessor();
 	preprocessor.addPPCallbacks(
 		llvm::make_unique<PreprocessorCallbacks>(compiler.getSourceManager(), m_client, m_fileRegister));
-
+	preprocessor.addCommentHandler(&m_commentHandler);
 	return true;
 }
 

src/lib/data/parser/cxx/ASTAction.h

@@ -5,6 +5,7 @@
 #include "clang/Frontend/FrontendAction.h"
 
 #include "data/parser/cxx/ASTConsumer.h"
+#include "data/parser/cxx/CommentHandler.h"
 #include "utility/file/FileRegister.h"
 
 class ASTAction : public clang::ASTFrontendAction
@@ -22,6 +23,8 @@ protected:
 private:
 	ParserClient* m_client;
 	FileRegister* m_fileRegister;
+	CommentHandler m_commentHandler;
+
 };
 
 #endif // AST_ACTION_H

src/lib/data/parser/cxx/CommentHandler.cpp

@@ -0,0 +1,28 @@
+#include "data/parser/cxx/CommentHandler.h"
+
+#include "data/parser/ParserClient.h"
+CommentHandler::CommentHandler(ParserClient* client)
+	: m_client(client)
+{
+}
+
+CommentHandler::~CommentHandler()
+{
+}
+
+bool CommentHandler::HandleComment(clang::Preprocessor& preprocessor, clang::SourceRange sourceRange)
+{
+	clang::SourceManager& sourceManager = preprocessor.getSourceManager();
+	const clang::PresumedLoc& presumedBegin = sourceManager.getPresumedLoc(sourceRange.getBegin(), false);
+	const clang::PresumedLoc& presumedEnd = sourceManager.getPresumedLoc(sourceRange.getEnd(), false);
+	
+	m_client->onCommentParsed(ParseLocation(
+		presumedBegin.getFilename(),
+		presumedBegin.getLine(),
+		presumedBegin.getColumn(),
+		presumedEnd.getLine(),
+		presumedEnd.getColumn()
+	));
+
+	return false;
+}

src/lib/data/parser/cxx/CommentHandler.h

@@ -0,0 +1,21 @@
+#ifndef COMMENT_HANDLER_H
+#define COMMENT_HANDLER_H
+
+#include "clang/Lex/Preprocessor.h"
+
+class ParserClient;
+
+class CommentHandler
+	: public clang::CommentHandler
+{
+public:
+	CommentHandler(ParserClient* client);
+	virtual ~CommentHandler();
+
+	virtual bool HandleComment(clang::Preprocessor& preprocessor, clang::SourceRange sourceRange);
+
+private:
+	ParserClient* m_client;
+};
+
+#endif // COMMENT_HANDLER_H