Restructured cx namespace

src/cx/compilation_database.h

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <clang-c/CXCompilationDatabase.h>
+#include <clang-c/Index.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+
+namespace clanguml {
+namespace cx {
+
+class compilation_database {
+public:
+    compilation_database(CXCompilationDatabase &&d);
+    ~compilation_database();
+
+    CXCompilationDatabase &db();
+
+    CXIndex &index();
+
+    CXTranslationUnit parse_translation_unit(
+        const std::string &path);
+
+    static compilation_database from_directory(const std::string &dir);
+
+private:
+    CXCompilationDatabase m_database;
+    CXIndex m_index;
+};
+}
+}