CheckEvaluationExpression.java

/*
Copyright (c) 2008 Arno Haase, Andr� Arnold.
All rights reserved. This program and the accompanying materials
are made available under the terms of the Eclipse Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/epl-v10.html

Contributors:
    Arno Haase - initial API and implementation
    Andr� Arnold
 */
package org.eclipse.xtend.backend.testhelpers;

import static org.eclipse.xtend.backend.testhelpers.BackendTestHelper.SOURCE_POS;

import org.eclipse.xtend.backend.common.ExecutionContext;
import org.eclipse.xtend.backend.common.ExpressionBase;


/**
 * This expression class serves as a mock implementation to test that an
 *  expression was actually evaluated.
 * 
 * @author Arno Haase (http://www.haase-consulting.com)
 * @author Andr� Arnold
 */
public class CheckEvaluationExpression extends ExpressionBase{
    public Object _value;
    public int _evalCounter = 0;
    
    public CheckEvaluationExpression (Object value) {
        super (SOURCE_POS);
        _value = value;
    }
    
    @Override
    protected Object evaluateInternal (ExecutionContext ctx) {
        _evalCounter++;
        return _value;
    }
}