tree_node.h

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#ifndef TREE_NODE_H
#define TREE_NODE_H
 
#include <cstddef>
#include <memory>
#include <optional>
#include <string>
#include <vector>
 
#include "definition_key.h"
#include "frame_info.h"
#include "signal_info.h"
 
enum class NodeType {
    Root,
    Frame,
    Signal
};
 
class TreeNode {
public:
    TreeNode();
 
    explicit TreeNode(const FrameInfo &frame);
 
    explicit TreeNode(const SignalInfo &signal);
 
    ~TreeNode() = default;
 
    TreeNode(const TreeNode &) = delete;
    TreeNode &operator=(const TreeNode &) = delete;
 
    // Node addresses are stable. Transfer unique_ptr ownership instead of nodes.
    TreeNode(TreeNode &&) = delete;
    TreeNode &operator=(TreeNode &&) = delete;
 
    void AddChild(std::unique_ptr<TreeNode> &&child);
 
    const TreeNode *GetParent() const;
 
    std::size_t GetRow() const;
 
    std::optional<FrameKey> GetFrameKey() const;
 
    std::optional<SignalKey> GetSignalKey() const;
 
    std::size_t GetChildCount() const;
 
    const TreeNode *GetChild(std::size_t index) const;
 
    TreeNode *GetChild(std::size_t index);
 
    NodeType GetType() const;
 
    const std::string &GetName() const;
 
    const FrameInfo *GetFrame() const;
 
    const SignalInfo *GetSignal() const;
 
private:
    TreeNode *m_parent = nullptr;
    std::size_t m_row = 0U;
    NodeType m_type;
    std::string m_name;
    std::vector<std::unique_ptr<TreeNode>> m_children;
    std::unique_ptr<FrameInfo> m_frame;
    std::unique_ptr<SignalInfo> m_signal;
};
 
#endif /* TREE_NODE_H */