Package anvil.script.expression

Source Code of anvil.script.expression.OrNode

/*
* $Id: OrNode.java,v 1.5 2002/09/16 08:05:05 jkl Exp $
*
* Copyright (c) 2002 Njet Communications Ltd. All Rights Reserved.
*
* Use is subject to license terms, as defined in
* Anvil Sofware License, Version 1.1. See LICENSE
* file, or http://njet.org/license-1.1.txt
*/
package anvil.script.expression;

import anvil.core.Any;
import anvil.codec.Code;
import anvil.codec.Source;
import anvil.script.compiler.ByteCompiler;
import anvil.script.Context;
import java.io.IOException;

/**
* class OrNode
*
* @author: Jani Lehtim�ki
*/
public class OrNode extends BinaryParent
{

  public OrNode(Node left, Node right)
  {
    super(left,right);
  }


  public int typeOf()
  {
    return Node.EXPR_OR; 
  }


  public Any eval()
  {
    return _left.eval().toBoolean() || _right.eval().toBoolean() ?
      Any.TRUE : Any.FALSE;
  }


  public void compile(ByteCompiler context, int operation)
  {
    Code code = context.getCode();
    _left.compile(context, GET_BOOLEAN);
    code.dup();
    Source source = code.if_ne();
    code.pop();
    _right.compile(context, GET_BOOLEAN);
    source.bind();
    if (operation != GET_BOOLEAN) {
      context.boolean2any();
    }   
  }
}
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