aconcat.java

来自「有关编译器的编译器.」· Java 代码 · 共 119 行

/* This file was generated by SableCC (http://www.sablecc.org/). */

package org.sablecc.sablecc.node;

import java.util.*;
import org.sablecc.sablecc.analysis.*;

public final class AConcat extends PConcat
{
  private final LinkedList _unExps_ = new TypedLinkedList(new UnExps_Cast());

  public AConcat()
  {}

  public AConcat(
    List _unExps_)
  {
    {
      this._unExps_.clear();
      this._unExps_.addAll(_unExps_);
    }

  }

  public AConcat(
    XPUnExp _unExps_)
  {
    if(_unExps_ != null)
    {
      while(_unExps_ instanceof X1PUnExp)
      {
        this._unExps_.addFirst(((X1PUnExp) _unExps_).getPUnExp());
        _unExps_ = ((X1PUnExp) _unExps_).getXPUnExp();
      }
      this._unExps_.addFirst(((X2PUnExp) _unExps_).getPUnExp());
    }

  }
  public Object clone()
  {
    return new AConcat(
             cloneList(_unExps_));
  }

  public void apply(Switch sw)
  {
    ((Analysis) sw).caseAConcat(this);
  }

  public LinkedList getUnExps()
  {
    return _unExps_;
  }

  public void setUnExps(List list)
  {
    _unExps_.clear();
    _unExps_.addAll(list);
  }

  public String toString()
  {
    return ""
           + toString(_unExps_);
  }

  void removeChild(Node child)
  {
    if(_unExps_.remove(child))
    {
      return;
    }

  }

  void replaceChild(Node oldChild, Node newChild)
  {
    for(ListIterator i = _unExps_.listIterator(); i.hasNext();)
    {
      if(i.next() == oldChild)
      {
        if(newChild != null)
        {
          i.set(newChild);
          oldChild.parent(null);
          return;
        }

        i.remove();
        oldChild.parent(null);
        return;
      }
    }

  }

  private class UnExps_Cast implements Cast
  {
    public Object cast(Object o)
    {
      PUnExp node = (PUnExp) o;

      if((node.parent() != null) &&
          (node.parent() != AConcat.this))
      {
        node.parent().removeChild(node);
      }

      if((node.parent() == null) ||
          (node.parent() != AConcat.this))
      {
        node.parent(AConcat.this);
      }

      return node;
    }
  }
}