/*
* $Id: ExactCompareNode.java,v 1.3 2002/09/16 08:05:04 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 ExactCompareNode
*
* @author: Jani Lehtim�ki
*/
public class ExactCompareNode extends BinaryParent
{
public ExactCompareNode(Node left, Node right)
{
super(left,right);
}
public int typeOf()
{
return Node.EXPR_COMPARE;
}
public Any eval()
{
return Any.create(_left.eval().compareTo(_right.eval()));
}
public void compile(ByteCompiler context, int operation)
{
super.compile(context, GET);
Code code = context.getCode();
code.invokevirtual(code.getPool().addMethodRef(context.TYPE_ANY,
"compareTo", "(Lanvil/core/Any;)I"));
if (operation == GET_BOOLEAN) {
Source isfalse = code.if_eq();
code.iconst(true);
Source toend = code.go_to();
isfalse.bind();
code.iconst(false);
toend.bind();
} else {
code.invokestatic(code.getPool().addMethodRef(context.TYPE_ANY,
"create", "(I)Lanvil/core/Any;"));
}
}
}