#ifndef fk_NODE_HPP
#define fk_NODE_HPP

#include "commons.hpp"
#include "Loc.hpp"

#define NODE_TYPES(G) \
  G(NODE_MODULE), G(NODE_INT), G(NODE_FLOAT), G(NODE_BOOL), G(NODE_STRING),\
    G(NODE_IDENT), G(NODE_OPAR), G(NODE_CPAR), G(NODE_CALL), G(NODE_LAMBDA),\
    G(NODE_RARROW), G(NODE_PARAMS), G(NODE_BODY), G(NODE_NS), G(NODE_IMPORT),\
    G(NODE_VARDECL), G(NODE_DECL), G(NODE_ARRAY), G(NODE_OSQUARE), \
    G(NODE_CSQUARE)

namespace fk
{
  FK_ENUM(NodeType, NODE_TYPES);

  class Node
  {
  public:
    explicit Node(NodeType type,
                  std::string const& repr,
                  Loc const& loc);
    virtual ~Node();

    NodeType type() const { return m_type; }
    std::string repr() const { return m_repr; }
    Loc loc() const { return m_loc; }
    size_t size() const { return m_children.size(); }

    void add_child(std::shared_ptr<Node> child);
    std::shared_ptr<Node> child(size_t index) const;

    std::string string() const;

  private:
    NodeType m_type;
    std::string m_repr;
    Loc m_loc;
    std::vector<std::shared_ptr<Node>> m_children;
  };
}

#endif