code: /***************************************************************************
   *   Copyright (C) 2015 by Fabrizio Montesi <famontesi@gmail.com>          *
   *                                                                         *
   *   This program is free software; you can redistribute it and/or modify  *
   *   it under the terms of the GNU Library General Public License as       *
   *   published by the Free Software Foundation; either version 2 of the    *
   *   License, or (at your option) any later version.                       *
   *                                                                         *
   *   This program 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 Library General Public     *
   *   License along with this program; if not, write to the                 *
   *   Free Software Foundation, Inc.,                                       *
   *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
   *                                                                         *
   *   For details about the authors of this software, see the AUTHORS file. *
   ***************************************************************************/
  
  
  package jolie.runtime.expression;
  
  import jolie.process.TransformationReason;
  import jolie.runtime.Value;
  import jolie.runtime.VariablePath;
  import jolie.util.Pair;
  
  
  /**
   * Implements inline tree definitions.
   * @author Fabrizio Montesi
   */
  public class InlineTreeExpression implements Expression
  {
  	private final Expression rootExpression;
  	private final Pair< VariablePath, Expression >[] assignments;
  	
  	public InlineTreeExpression(
  		Expression rootExpression,
  		Pair< VariablePath, Expression >[] assignments
  	) {
  		this.rootExpression = rootExpression;
  		this.assignments = assignments;
  	}
  	
  	public Expression cloneExpression( TransformationReason reason )
  	{
  		Pair< VariablePath, Expression >[] cloneAssignments = new Pair[ assignments.length ];
  		int i = 0;
  		for( Pair< VariablePath, Expression > pair : assignments ) {
  			cloneAssignments[ i++ ] =
  				new Pair< VariablePath, Expression >(
  					pair.key().clone(),
  					pair.value().cloneExpression( reason )
  				);
  		}
  		
  		return new InlineTreeExpression(
  			rootExpression.cloneExpression( reason ),
  			cloneAssignments
  		);
  	}
  	
  	public Value evaluate()
  	{
  		Value inlineValue = Value.create();
  		inlineValue.assignValue( rootExpression.evaluate() );
  		
  		for( Pair< VariablePath, Expression > pair : assignments ) {
  			pair.key().getValue( inlineValue ).assignValue( pair.value().evaluate() );
  		}
  		
  		return inlineValue;
  	}
  }
  