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Luaj 3.0-beta1 for the jse platform

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/*******************************************************************************
* Copyright (c) 2010 Luaj.org. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
package org.luaj.vm2.ast;

import java.util.List;

import org.luaj.vm2.ast.Exp.VarExp;

abstract public class Visitor {
	public void visit(Chunk chunk) { 
		chunk.block.accept(this); 
	};
	public void visit(Block block) {
		visit(block.scope);
		if ( block.stats != null )
			for ( int i=0, n=block.stats.size(); i vars) {
		if ( vars != null )
			for ( int i=0, n=vars.size(); i exps) {
		if ( exps != null )
			for ( int i=0, n=exps.size(); i names) {
		if ( names != null )
			for ( int i=0, n=names.size(); i