Refactored id generation

src/common/clang_utils.cc

@@ -0,0 +1,34 @@
+/**
+ * src/common/visitor/clang_utils.cc
+ *
+ * Copyright (c) 2021-2022 Bartek Kryza <bkryza@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "clang_utils.h"
+
+namespace clanguml::common {
+
+template <> id_t to_id(const clang::NamespaceDecl &declaration)
+{
+    return std::hash<std::string>{}(get_qualified_name(declaration)) >> 3;
+}
+
+template <> id_t to_id(const clang::EnumType &t) { return to_id(*t.getDecl()); }
+
+template <> id_t to_id(const clang::TemplateSpecializationType &t)
+{
+    return t.getTemplateName().getAsTemplateDecl()->getID();
+}
+}