Refactored template instantiation builder methods to a separate class

src/common/visitor/ast_id_mapper.cc

@@ -0,0 +1,36 @@
+/**
+ * src/class_diagram/visitor/ast_id_mapper.cc
+ *
+ * Copyright (c) 2021-2023 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 "ast_id_mapper.h"
+
+namespace clanguml::common::visitor {
+
+void ast_id_mapper::add(int64_t ast_id, id_t global_id)
+{
+    id_map_.emplace(ast_id, global_id);
+}
+
+std::optional<id_t> ast_id_mapper::get_global_id(int64_t ast_id)
+{
+    if (id_map_.count(ast_id) == 0)
+        return {};
+
+    return id_map_.at(ast_id);
+}
+
+} // namespace clanguml::common::visitor

src/common/visitor/ast_id_mapper.h

@@ -0,0 +1,43 @@
+/**
+ * src/class_diagram/visitor/ast_id_mapper.h
+ *
+ * Copyright (c) 2021-2023 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.
+ */
+#pragma once
+
+#include "common/model/diagram_element.h"
+
+#include <cstdint>
+#include <map>
+
+namespace clanguml::common::visitor {
+
+class ast_id_mapper {
+public:
+    using id_t = common::model::diagram_element::id_t;
+
+    ast_id_mapper() = default;
+
+    void add(int64_t ast_id, id_t global_id);
+
+    std::optional<id_t> get_global_id(int64_t ast_id);
+
+private:
+    std::map</* Clang AST translation unit local id */ int64_t,
+        /* clang-uml global id */ id_t>
+        id_map_;
+};
+
+} // namespace clanguml::class_diagram::visitor