wkb_size_visitor.h

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#ifndef SQL_GIS_WKB_SIZE_VISITOR_H_INCLUDED
#define SQL_GIS_WKB_SIZE_VISITOR_H_INCLUDED
 
// Copyright (c) 2018, 2024, Oracle and/or its affiliates.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
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// This program is distributed in the hope that it will be useful,
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#include "sql/gis/geometry_visitor.h"
 
#include <cstddef>  // std::size_t
 
namespace gis {
 
/// A visitor that computes the size of a WKB representation of a geometry.
class Wkb_size_visitor : public Nop_visitor {
 private:
  /// The size of the geometry.
  std::size_t m_size;
 
 public:
  /// Construct a new WKB visitor.
  Wkb_size_visitor() : m_size(0) {}
  std::size_t size() const { return m_size; }
 
  using Nop_visitor::visit_enter;
  bool visit_enter(Geometry *g) override;
  bool visit_enter(Linestring *ls) override;
  bool visit_enter(Linearring *lr) override;
  bool visit_enter(Polygon *py) override;
  bool visit_enter(Geometrycollection *gc) override;
 
  using Nop_visitor::visit;
  bool visit(Point *pt) override;
};
 
}  // namespace gis
 
#endif  // SQL_GIS_WKB_SIZE_VISITOR_H_INCLUDED