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1   /***************************************************************************************
2    * Copyright (c) Jonas BonŽr, Alexandre Vasseur. All rights reserved.                 *
3    * http://aspectwerkz.codehaus.org                                                    *
4    * ---------------------------------------------------------------------------------- *
5    * The software in this package is published under the terms of the LGPL license      *
6    * a copy of which has been included with this distribution in the license.txt file.  *
7    **************************************************************************************/
8   package org.codehaus.aspectwerkz.transform.inlining.compiler;
9   
10  import org.objectweb.asm.CodeVisitor;
11  import org.objectweb.asm.Type;
12  import org.codehaus.aspectwerkz.transform.inlining.AsmHelper;
13  
14  /***
15   * Redefines the existing join point class and turns it into a delegation class delegating to the newly created
16   * replacement join point class.
17   *
18   * @author <a href="mailto:jboner@codehaus.org">Jonas BonŽr </a>
19   */
20  public class MethodCallJoinPointRedefiner extends MethodCallJoinPointCompiler {
21      /***
22       * The redefined model.
23       */
24      private final CompilationInfo.Model m_redefinedModel;
25  
26      /***
27       * Creates a new join point compiler instance.
28       *
29       * @param model
30       */
31      MethodCallJoinPointRedefiner(final CompilationInfo model) {
32          super(model.getInitialModel());
33          m_redefinedModel = model.getRedefinedModel();
34      }
35  
36      /***
37       * Creates the 'invoke' method.
38       */
39      protected void createInvokeMethod() {
40          String invokeDesc = buildInvokeMethodSignature();
41          CodeVisitor cv = m_cw.visitMethod(
42                  ACC_PUBLIC + ACC_FINAL + ACC_STATIC,
43                  INVOKE_METHOD_NAME,
44                  invokeDesc,
45                  new String[]{
46                      THROWABLE_CLASS_NAME
47                  },
48                  null
49          );
50          AsmHelper.loadArgumentTypes(cv, Type.getArgumentTypes(invokeDesc), true);
51          cv.visitMethodInsn(INVOKESTATIC, m_redefinedModel.getJoinPointClassName(), INVOKE_METHOD_NAME, invokeDesc);
52          AsmHelper.addReturnStatement(cv, Type.getReturnType(invokeDesc));
53          cv.visitMaxs(0, 0);
54      }
55  
56      /***
57       * Creates the 'invoke' method.
58       */
59      protected void createInlinedInvokeMethod() {
60          createInvokeMethod();
61      }
62  
63  }