Examples of CodeConverter

Simple translator of method bodies (also see the javassist.expr package).

Instances of this class specifies how to instrument of the bytecodes representing a method body. They are passed to CtClass.instrument() or CtMethod.instrument() as a parameter.

Example:

 ClassPool cp = ClassPool.getDefault(); CtClass point = cp.get("Point"); CtClass singleton = cp.get("Singleton"); CtClass client = cp.get("Client"); CodeConverter conv = new CodeConverter(); conv.replaceNew(point, singleton, "makePoint"); client.instrument(conv);

This program substitutes "Singleton.makePoint()" for all occurrences of "new Point()" appearing in methods declared in a Client class. @see javassist.CtClass#instrument(CodeConverter) @see javassist.CtMethod#instrument(CodeConverter) @see javassist.expr.ExprEditor

    */
   public void convertProcessedClasses(HotSwapper hotSwapper, CtClass clazz,
         Collection<CtField> fieldReads, Collection<CtField> fieldWrites, boolean constructor)
   {
      ClassPool classPool = clazz.getClassPool();
      CodeConverter codeConverter = new CodeConverter();
      for (CtField field : fieldReads)
      {
         codeConverter.replaceFieldRead(field, clazz, FieldAccessTransformer.fieldRead(field.getName()));
      }
      for (CtField field : fieldWrites)
      {
         codeConverter.replaceFieldWrite(field, clazz, FieldAccessTransformer.fieldWrite(field.getName()));
      }
      if (constructor)
      {
         codeConverter.replaceNew(clazz, clazz, ConstructorExecutionTransformer.constructorFactory(clazz.getSimpleName()));
      }


      synchronized(processedClasses)
      {
      for (CtClass processedClass : processedClasses)

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Examples of CodeConverter

Examples of javassist.CodeConverter