/*
* $Id: ReferenceNode.java,v 1.9 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.script.compiler.ByteCompiler;
import anvil.script.Context;
import java.io.IOException;
/**
* class ReferenceNode
*
* @author: Jani Lehtim�ki
*/
public class ReferenceNode extends BinaryParent
{
public ReferenceNode(Node self, Node index)
{
super(self, index);
}
public int typeOf()
{
return EXPR_REFERENCE;
}
public boolean isConstant()
{
return false;
}
public Node optimize()
{
optimizeChilds();
return this;
}
public void compile(ByteCompiler context, int operation)
{
Code code = context.getCode();
switch(operation) {
case GET:
_left.compile(context, GET);
code.aload_first();
_right.compile(context, GET);
code.invokevirtual(code.getPool().addMethodRef(context.TYPE_ANY, "getReference",
"(Lanvil/script/Context;Lanvil/core/Any;)Lanvil/core/Any;"));
break;
case GET_BOOLEAN:
_left.compile(context, GET);
code.aload_first();
_right.compile(context, GET);
code.invokevirtual(code.getPool().addMethodRef(context.TYPE_ANY, "getReference",
"(Lanvil/script/Context;Lanvil/core/Any;)Lanvil/core/Any;"));
context.any2boolean();
break;
case CHECK:
_left.compile(context, GET);
code.aload_first();
_right.compile(context, GET);
code.invokevirtual(code.getPool().addMethodRef(context.TYPE_ANY, "checkReference",
"(Lanvil/script/Context;Lanvil/core/Any;)Lanvil/core/Any;"));
break;
case DELETE:
_left.compile(context, GET);
code.aload_first();
_right.compile(context, GET);
code.invokevirtual(code.getPool().addMethodRef(context.TYPE_ANY, "deleteReference",
"(Lanvil/script/Context;Lanvil/core/Any;)Z"));
break;
}
}
}