/* 
 *  Copyright (C) 2000 - 2010 TagServlet Ltd
 *
 *  This file is part of Open BlueDragon (OpenBD) CFML Server Engine.
 *  
 *  OpenBD is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  Free Software Foundation,version 3.
 *  
 *  OpenBD is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with OpenBD.  If not, see http://www.gnu.org/licenses/
 *  
 *  Additional permission under GNU GPL version 3 section 7
 *  
 *  If you modify this Program, or any covered work, by linking or combining 
 *  it with any of the JARS listed in the README.txt (or a modified version of 
 *  (that library), containing parts covered by the terms of that JAR, the 
 *  licensors of this Program grant you additional permission to convey the 
 *  resulting work. 
 *  README.txt @ http://www.openbluedragon.org/license/README.txt
 *  
 *  http://www.openbluedragon.org/
 */

package com.naryx.tagfusion.cfm.parser;

import java.util.ArrayList;

import org.antlr.runtime.Token;

import com.naryx.tagfusion.cfm.engine.cfArrayData;
import com.naryx.tagfusion.cfm.engine.cfData;
import com.naryx.tagfusion.cfm.engine.cfmRunTimeException;

public class CFArrayExpression extends CFExpression implements java.io.Serializable{

	private static final long serialVersionUID = 1L;
	
	private ArrayList<CFExpression> elements;
	
  public CFArrayExpression(Token t) {
    super(t);
    elements = new ArrayList<CFExpression>();
  }

	public void addElement( CFExpression _e ){
		elements.add( _e );
	}
	
	@Override
	public cfData Eval( CFContext context ) throws cfmRunTimeException {
		cfArrayData array = cfArrayData.createArray( 1 );
		
		for ( int i = 0; i < elements.size(); i++ ){
			cfData nextValue = ( (CFExpression) elements.get(i) ).Eval( context );
			if ( nextValue instanceof cfLData ){
				nextValue = ( (cfLData) nextValue ).Get( context );
			}
			if ( nextValue.isLoopIndex() ){
				nextValue = nextValue.duplicate();
			}

			array.addElement( nextValue );
		}

		return array;
	}

	@Override
	public String Decompile( int indent ) {
		if ( elements.size() > 0 ){
			StringBuilder sb = new StringBuilder();
			sb.append( '[' );
			for ( int i = 0; i < elements.size(); i++ ){
				sb.append( ( (CFExpression) elements.get(i) ).Decompile( 0 ) );
				sb.append( ',' );
			}
			sb.deleteCharAt( sb.length()-1 );	
			
			sb.append( ']' );
			return sb.toString();
		}else{
			return "[]";
		}
	}

}