]> gerrit.simantics Code Review - simantics/platform.git/blob - bundles/org.simantics.spreadsheet.graph/src/org/simantics/spreadsheet/graph/parser/ast/AstNothing.java
Introduce new DiagramViewer.getRuntimeFromManager()
[simantics/platform.git] / bundles / org.simantics.spreadsheet.graph / src / org / simantics / spreadsheet / graph / parser / ast / AstNothing.java
1 /*******************************************************************************
2  *  Copyright (c) 2010 Association for Decentralized Information Management in
3  *  Industry THTH ry.
4  *  All rights reserved. This program and the accompanying materials
5  *  are made available under the terms of the Eclipse Public License v1.0
6  *  which accompanies this distribution, and is available at
7  *  http://www.eclipse.org/legal/epl-v10.html
8  *
9  *  Contributors:
10  *      VTT Technical Research Centre of Finland - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.spreadsheet.graph.parser.ast;
13
14 import java.io.Serializable;
15
16 public class AstNothing implements AstValue {
17         
18         private static final long serialVersionUID = 4968570232015650370L;
19         
20         public static final AstNothing INSTANCE = new AstNothing();
21         public static final Serializable NOTHING = new Serializable() {
22                 private static final long serialVersionUID = -3704142714710129215L;
23         };
24         
25         @Override
26         public <T> T accept(AstValueVisitor<T> v) {
27                 return v.visit(this);
28         }
29 }