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1   /**
2    * Copyright 2007 Google Inc.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package com.tonicsystems.jarjar.util;
18  
19  import org.objectweb.asm.ClassVisitor;
20  
21  public class JarTransformerChain extends JarTransformer
22  {
23      private final RemappingClassTransformer[] chain;
24      
25      public JarTransformerChain(RemappingClassTransformer[] chain) {
26          this.chain = chain.clone();
27          for (int i = chain.length - 1; i > 0; i--) {
28              chain[i - 1].setTarget(chain[i]);
29          }
30      }
31  
32      protected ClassVisitor transform(ClassVisitor v) {
33          chain[chain.length - 1].setTarget(v);
34          return chain[0];
35      }
36  }