/*
* $Id: MemberVariableNode.java,v 1.19 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.AnyClass;
import anvil.ErrorListener;
import anvil.script.ClassType;
import anvil.codec.Code;
import anvil.codec.ConstantPool;
import anvil.script.compiler.ByteCompiler;
import anvil.script.Context;
import anvil.script.Type;
import anvil.script.MemberVariableType;
import java.io.IOException;
/**
* class MemberVariableNode
*
* @author: Jani Lehtim�ki
*/
public class MemberVariableNode extends Node
{
protected ClassType _target;
protected ClassType _context;
protected MemberVariableType _member;
public MemberVariableNode(ClassType context, MemberVariableType member)
{
this(member.getClassType(), context, member);
}
public MemberVariableNode(ClassType target, ClassType context, MemberVariableType member)
{
super();
_target = target;
_context = context;
_member = member;
}
public int typeOf()
{
return Node.EXPR_VARIABLE;
}
public boolean isConstant()
{
return false;
}
public Node optimize()
{
return this;
}
public void compile(ByteCompiler context, Node child)
{
Code code = context.getCode();
ConstantPool pool = code.getPool();
context.accessInstance(_context, _target);
child.compile(context, GET);
code.dup_x1();
code.putfield(_member.getTypeRef(pool));
}
public void compile(ByteCompiler context, int operation)
{
Code code = context.getCode();
ConstantPool pool = code.getPool();
switch(operation) {
case GET:
context.accessInstance(_context, _target);
code.getfield(_member.getTypeRef(pool));
break;
case GET_BOOLEAN:
context.accessInstance(_context, _target);
code.getfield(_member.getTypeRef(pool));
context.any2boolean();
break;
case CHECK:
context.accessInstance(_context, _target);
code.getfield(_member.getTypeRef(pool));
break;
case DELETE:
code.iconst(false);
break;
}
}
}