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annotation_delta.cc

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// Annotation Delta implementation -*- C++ -*-

// Copyright (C) 2001-2003 Hermann Schichl
//
// This file is part of the COCONUT API.  This library
// is free software; you can redistribute it and/or modify it under the
// terms of the Library GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// Library GNU General Public License for more details.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the Library GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the Library GNU General Public License.

#include <annotation_delta.h>

bool annotation_delta::apply(work_node& _x, undelta_base*& _u) const
{
  std::vector<annotation> rmd;
  rmd.reserve(rm.size());
  std::vector<annotation>::const_iterator __x, __e(rm.end());
  std::vector<annotation>::iterator __y, __f;
  for(__x = rm.begin(); __x != __e; ++__x)
  {
    __f = _x._ann.end();
    for(__y = _x._ann.begin(); __y != __f; ++__y)
    {
      if(*__x == *__y)
      {
        _x._ann.erase(__y);
        rmd.push_back(*__x);
        break;
      }
    }
  }
  _x._ann.insert(_x._ann.end(), add.begin(), add.end());
  _u = (undelta_base *) new annotation_undelta(add, rmd);
  return true;
}

bool annotation_undelta::unapply(work_node& _x) const
{
  std::vector<annotation>::const_iterator __x, __e(added_ann.end());
  std::vector<annotation>::iterator __y, __f;
  for(__x = added_ann.begin(); __x != __e; ++__x)
  {
    __f = _x._ann.end();
    for(__y = _x._ann.begin(); __y != __f; ++__y)
    {
      if(*__x == *__y)
      {
        _x._ann.erase(__y);
        break;
      }
    }
  }
  _x._ann.insert(_x._ann.end(), removed_ann.begin(), removed_ann.end());
  return true;
}

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