vertex_const_handle.h

/*
 * Copyright 2026 Michele Comparini
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef GRAPHDOM_VERTEX_CONST_HANDLE_H
#define GRAPHDOM_VERTEX_CONST_HANDLE_H
 
#include "../graph.h"
#include "vertex_container.h"
#include "vertex_base_handle.h"
#include "vertex_handle.h"
#include "../multiset_graph.h"
#include "multiset_graph_vertex_handle.h"
 
namespace graphdom {
    template <typename VertexType>
    class graph<VertexType>::vertex_const_handle final : public graph<VertexType>::vertex_base_handle< const graph<VertexType>::vertex_container* > {
        public:
            vertex_const_handle() = delete;
            vertex_const_handle(const vertex_const_handle& other);
            vertex_const_handle(const graph<VertexType>::vertex_handle& other);
            vertex_const_handle(const typename multiset_graph<VertexType>::vertex_handle& other);
 
            ~vertex_const_handle() = default;
 
            vertex_const_handle& operator=(const vertex_const_handle& other);
 
            [[nodiscard]] graph<VertexType>::const_adj_list adj_list() const;
            [[nodiscard]] graph<VertexType>::const_adj_list adj_list(edge_type edge_type) const;
            [[nodiscard]] graph<VertexType>::const_adj_list const_adj_list() const;
            [[nodiscard]] graph<VertexType>::const_adj_list const_adj_list(edge_type edge_type) const;
 
            friend typename graph<VertexType>::adj_list_const_iterator;
            friend graph<VertexType>;
        private:
            vertex_const_handle(
                const graph<VertexType>* vertex_container_owner_ptr,
                graph<VertexType>::graph_edges_type vertex_container_owner_et,
                const graph<VertexType>::vertex_container* vertex_container_ptr
            );
    };
}
 
#include "impl/vertex_const_handle.h"
 
#endif //GRAPHDOM_VERTEX_CONST_HANDLE_H