data: Added CxxParser, currently only detecting classes

This change adds CxxParser a class for parsing cxx files. It holds basic functionality to detect classes using the clang
libTooling classes. CxxParser is derived from a common Parser interface, which can later be used for other language
parsers. The Parser forwards detected elements to a ParserClient interface, which is implemented by the Storage class.
The detected classes only get logged so far.

review id = 6

* bd3c63a - (HEAD, origin/class, class) applied second review <Eberhard Graether> (4 minutes ago)
* 3db7d93 - added missing files <Eberhard Graether> (4 days ago)
* 6d09f4e - applied review <Eberhard Graether> (4 days ago)
* d9d3e64 - fixed CMake files <Eberhard Graether> (4 days ago)
* f22a771 - only one Storage class <Eberhard Graether> (4 days ago)
* 6ee9553 - added tests <Eberhard Graether> (4 days ago)
* 0a525e8 - fixed includes <Eberhard Graether> (4 days ago)
* ca3fbb8 - added StorageManager as ParserClient <Eberhard Graether> (4 days ago)
* fa185a5 - renamed ParseLocation to ParseObject <Eberhard Graether> (4 days ago)
* 8b89808 - pass location with ParseLocation object <Eberhard Graether> (4 days ago)
* 548ae3c - renamed clang AST classes <Eberhard Graether> (4 days ago)
* d3b2caf - cleaned includes <Eberhard Graether> (4 days ago)
* f7fdf33 - removed using namespace stmts <Eberhard Graether> (4 days ago)
* 5378ef6 - using ParserClient <Eberhard Graether> (4 days ago)
* b9ce2f6 - working with test file <Eberhard Graether> (4 days ago)
* 5585abc - added CxxParser and ParserClient <Eberhard Graether> (4 days ago)

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

@@ -0,0 +1,30 @@
+#include "data/parser/cxx/ASTVisitor.h"
+
+ASTVisitor::ASTVisitor(clang::ASTContext* context, std::shared_ptr<ParserClient> client)
+	: m_context(context)
+	, m_client(client)
+{
+}
+
+ASTVisitor::~ASTVisitor()
+{
+}
+
+bool ASTVisitor::VisitCXXRecordDecl(clang::CXXRecordDecl *declaration)
+{
+	clang::FullSourceLoc location = m_context->getFullLoc(declaration->getLocStart());
+
+	if (location.isValid() && m_context->getSourceManager().isWrittenInMainFile(location))
+	{
+		ParseObject parseObject(
+			declaration->getQualifiedNameAsString(),
+			m_context->getSourceManager().getFilename(location),
+			location.getSpellingLineNumber(),
+			location.getSpellingColumnNumber()
+		);
+
+		m_client->addClass(parseObject);
+	}
+
+	return true;
+}