Package anvil.script.expression

Source Code of anvil.script.expression.MutableExpressionList

/*
* $Id: MutableExpressionList.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.core.AnyList;
import anvil.codec.Code;
import anvil.codec.ConstantPool;
import anvil.script.compiler.ByteCompiler;
import anvil.script.Context;
import java.io.IOException;

/**
* class MutableExpressionList
*
* @author: Jani Lehtim�ki
*/
public class MutableExpressionList extends MultiParent
{


  public MutableExpressionList(int childs)
  {
    super(childs);
  }
 
  public int typeOf()
  {
    return EXPR_LIST;
  }
 

  public Any eval()
  {
    return new AnyList(evalChilds(0));
  }
 
 
  public void compile(ByteCompiler context, int operation)
  {
    Code code = context.getCode();
    ConstantPool pool = code.getPool();
    int clazz = pool.addClass("anvil/core/AnyList");
    int n = childs();
    code.anew(clazz);
    code.dup();
    code.iconst(n);
    code.anewarray(context.TYPE_ANY);
    for(int i=0; i<n; i++) {
      code.dup();
      code.iconst(i);
      getChild(i).compile(context, GET);
      code.aastore();
    }
    code.invokespecial(pool.addMethodRef(clazz, "<init>",
      "([Lanvil/core/Any;)V"));
    if (operation == context.GET_BOOLEAN) {
      context.any2boolean();
    }   
  }

}
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