/* * <copyright> * * Copyright (c) 2005-2006 Sven Efftinge and others. * 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: * Sven Efftinge - Initial API and implementation * * </copyright> */ package org.eclipse.gmf.internal.xpand.expression.ast; import java.util.Set; import org.eclipse.emf.ecore.EClassifier; import org.eclipse.gmf.internal.xpand.BuiltinMetaModel; import org.eclipse.gmf.internal.xpand.expression.AnalysationIssue; import org.eclipse.gmf.internal.xpand.expression.ExecutionContext; /** * @author Sven Efftinge * @author Arno Haase */ public class NullLiteral extends Literal { public NullLiteral(final int start, final int end, final int startOffset, final int endOffset, final int line) { super(start, end, line, startOffset, endOffset, "null"); } @Override public Object evaluateInternal(final ExecutionContext ctx) { return null; } public EClassifier analyze(final ExecutionContext ctx, final Set<AnalysationIssue> issues) { return BuiltinMetaModel.VOID; } }