parse_tree.h

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#ifndef META_PARSE_PARSE_TREE_H_
#define META_PARSE_PARSE_TREE_H_

#include <memory>
#include "parser/trees/node.h"
#include "parser/trees/visitors/tree_transformer.h"

namespace meta
{
namespace parser
{

class parse_tree
{
  public:
    parse_tree(std::unique_ptr<node> root);

    parse_tree(const parse_tree&);

    parse_tree(parse_tree&&) = default;

    parse_tree& operator=(parse_tree);

    void swap(parse_tree&);

    void transform(tree_transformer&);

    template <class Visitor>
    typename std::remove_reference<Visitor>::type::result_type
        visit(Visitor&& vtor)
    {
        return root_->accept(vtor);
    }

    template <class Visitor>
    typename std::remove_reference<Visitor>::type::result_type
        visit(Visitor&& vtor) const
    {
        return root_->accept(vtor);
    }

    friend std::ostream& operator<<(std::ostream& os, const parse_tree& tree);

    void pretty_print(std::ostream& os) const;

    friend bool operator==(const parse_tree& lhs, const parse_tree& rhs);

  private:
    std::unique_ptr<node> root_;
};
}
}

#endif