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1   package net.sourceforge.jenesis4java.util;
2   
3   /*
4    * #%L
5    * Jenesis 4 Java Code Generator
6    * %%
7    * Copyright (C) 2000 - 2016 jenesis4java
8    * %%
9    * This program is free software: you can redistribute it and/or modify
10   * it under the terms of the GNU Lesser General Public License as
11   * published by the Free Software Foundation, either version 3 of the
12   * License, or (at your option) any later version.
13   * 
14   * This program is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17   * GNU General Lesser Public License for more details.
18   * 
19   * You should have received a copy of the GNU General Lesser Public
20   * License along with this program.  If not, see
21   * <http://www.gnu.org/licenses/lgpl-3.0.html>.
22   * #L%
23   */
24  
25  import net.sourceforge.jenesis4java.Codeable;
26  import net.sourceforge.jenesis4java.Expression;
27  import net.sourceforge.jenesis4java.ReplacingVisitor;
28  
29  public class InstanceReplacingVisitor implements ReplacingVisitor {
30  
31      private final Codeable instanceToReplace;
32  
33      private final Codeable replacingInstance;
34  
35      public InstanceReplacingVisitor(Codeable instanceToReplace, Codeable replacingInstance) {
36          this.instanceToReplace = instanceToReplace;
37          this.replacingInstance = replacingInstance;
38      }
39  
40      @Override
41      public Codeable visitReplace(Codeable current, Codeable parent) {
42          if (instanceToReplace == current) {
43              return replacingInstance;
44          } else {
45              return current;
46          }
47      }
48  }