/*
* (c) Copyright 2010-2011 AgileBirds
*
* This file is part of OpenFlexo.
*
* OpenFlexo is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenFlexo 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 OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
*
*/
package org.openflexo.antar.expr;
/**
* This interface implements an expression transformer<br>
* This utility is used when performing transformations on an expression (see {@link Expression#transform(ExpressionTransformer)}.<br>
* Each node of the expression is recursively transformed using performTranslation(Expression) method.
*
* @author sylvain
*
*/
public interface ExpressionTransformer {
/**
* Performs the transformation of a resulting expression e, asserting that all contained expressions have already been transformed (this
* method is not recursive, to do so, use Expression.transform(ExpressionTransformer) API)
*/
public Expression performTransformation(Expression e) throws TransformException;
}