Package javassist.bytecode

Examples of javassist.bytecode.CodeIterator

314
315
316
317
318
319
320
321
322
323
324
325
326
327
      }
      CodeAttribute codeAttr = minfo.getCodeAttribute();
      if (codeAttr == null) {
        return;
      }
      CodeIterator iter = codeAttr.iterator();
      while (iter.hasNext()) {
        try {
          int pos = iter.next();
          pos = transformInvokevirtualsIntoGetfields(classfile, iter, pos);
          pos = transformInvokevirtualsIntoPutfields(classfile, iter, pos);

        } catch (BadBytecode e) {
          throw new CannotCompileException(e);
View Full Code Here
378
379
380
381
382
383
384
385
386
387
388
389
390
      final CodeAttribute codeAttr = methodInfo.getCodeAttribute();
      if ( codeAttr == null ) {
        continue;
      }

      final CodeIterator iter = codeAttr.iterator();
      while ( iter.hasNext() ) {
        int pos = iter.next();
        pos = transformInvokevirtualsIntoGetfields( classfile, iter, pos );
        transformInvokevirtualsIntoPutfields( classfile, iter, pos );
      }
      final StackMapTable smt = MapMaker.make( classPool, methodInfo );
      codeAttr.setAttribute( smt );
View Full Code Here
338
339
340
341
342
343
344
345
346
347
348
349
350
351
      }
      CodeAttribute codeAttr = minfo.getCodeAttribute();
      if (codeAttr == null) {
        return;
      }
      CodeIterator iter = codeAttr.iterator();
      while (iter.hasNext()) {
        try {
          int pos = iter.next();
          pos = transformInvokevirtualsIntoGetfields(classfile, iter, pos);
          pos = transformInvokevirtualsIntoPutfields(classfile, iter, pos);

        } catch (BadBytecode e) {
          throw new CannotCompileException(e);
View Full Code Here
327
328
329
330
331
332
333
334
335
336
337
338
339
340
      }
      CodeAttribute codeAttr = minfo.getCodeAttribute();
      if (codeAttr == null) {
        continue;
      }
      CodeIterator iter = codeAttr.iterator();
      while (iter.hasNext()) {
        try {
          int pos = iter.next();
          pos = transformInvokevirtualsIntoGetfields(classfile, iter,
                                                     pos);
          pos = transformInvokevirtualsIntoPutfields(classfile, iter,
                                                     pos);
View Full Code Here
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
        // would indicate an abstract method, continue to next method
        continue;
      }

      try {
        final CodeIterator itr = codeAttr.iterator();
        while ( itr.hasNext() ) {
          final int index = itr.next();
          final int op = itr.byteAt( index );
          if ( op != Opcode.PUTFIELD && op != Opcode.GETFIELD ) {
            continue;
          }

          final int constIndex = itr.u16bitAt( index + 1 );

          final String fieldName = constPool.getFieldrefName( constIndex );
          final PersistentAttributeDescriptor attributeDescriptor = attributeDescriptorMap.get( fieldName );

          if ( attributeDescriptor == null ) {
            // its not a field we have enhanced for interception, so skip it
            continue;
          }

          log.tracef(
              "Transforming access to field [%s] from method [%s]",
              fieldName,
              methodName
          );

          if ( op == Opcode.GETFIELD ) {
            final int readMethodIndex = constPool.addMethodrefInfo(
                constPool.getThisClassInfo(),
                attributeDescriptor.getReader().getName(),
                attributeDescriptor.getReader().getSignature()
            );
            itr.writeByte( Opcode.INVOKESPECIAL, index );
            itr.write16bit( readMethodIndex, index + 1 );
          }
          else {
            final int writeMethodIndex = constPool.addMethodrefInfo(
                constPool.getThisClassInfo(),
                attributeDescriptor.getWriter().getName(),
                attributeDescriptor.getWriter().getSignature()
            );
            itr.writeByte( Opcode.INVOKESPECIAL, index );
            itr.write16bit( writeMethodIndex, index + 1 );
          }
        }

        final StackMapTable smt = MapMaker.make( classPool, methodInfo );
        methodInfo.getCodeAttribute().setAttribute( smt );
View Full Code Here
97
98
99
100
101
102
103
104
105
106
107
108
109
          bc.addAload(0);
          bc.addGetfield(cc, "_counter", "I");
          bc.add(Bytecode.ICONST_1);
          bc.add(Bytecode.IADD);
          bc.addPutfield(cc, "_counter", "I");
          CodeIterator iter = info.getCodeAttribute().iterator();
          iter.begin();
          iter.insert(bc.get());
        }
      }
    }
    return cc.toBytecode();
  }
View Full Code Here
80
81
82
83
84
85
86
87
88
89
90
91
92
93
                    //but we need a strong ref
                    Bytecode code = new Bytecode(file.getConstPool());
                    code.addAload(0);
                    code.addAload(beanArgument);
                    code.addInvokestatic(WeldClassChangeAware.class.getName(), "addProxyFactory", "(Lorg/jboss/weld/bean/proxy/ProxyFactory;)V");
                    CodeIterator it = method.getCodeAttribute().iterator();
                    try {
                        it.skipConstructor();
                        it.insert(code.get());
                    } catch (Exception e) {
                        throw new RuntimeException(e);
                    }
                }
            }
View Full Code Here
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
   public static void rewriteLDC(ConstPool constPool, MethodInfo method) throws BadBytecode
   {
      CodeAttribute code = method.getCodeAttribute();
      if (code == null)
         return;
      CodeIterator iterator = code.iterator();
      while (iterator.hasNext())
      {
         int index = iterator.next();
         int op = iterator.byteAt(index);

         if (op == Opcode.LDC || op == Opcode.LDC_W)
         {
            int index0 = iterator.byteAt(index + 1);
            int constIndex = index0;
            if (op == Opcode.LDC_W)
            {
               int index1 = iterator.byteAt(index + 2);
               constIndex = (index0 << 8) + index1;
            }
            if (7 == constPool.getTag(constIndex))
            {
               String className = constPool.getClassInfo(constIndex);
               int theClassName = constPool.addStringInfo(className.replace('/', '.'));
               if (op == Opcode.LDC_W)
               {
                  int b0 = theClassName >>> 8;
                  int b1 = theClassName & 0x0FF;
                  iterator.writeByte(b0, index + 1);
                  iterator.writeByte(b1, index + 2);
               }
               else
               {
                  iterator.writeByte(theClassName, index + 1);
               }
               int classClass = constPool.addClassInfo("java/lang/Class");
               int descriptor = constPool.addMethodrefInfo(classClass, "forName",
                     "(Ljava/lang/String;)Ljava/lang/Class;");
               iterator.insert(new byte[]
               {(byte) Opcode.INVOKESTATIC, (byte) (descriptor >>> 8), (byte) descriptor});
            }
         }
      }
   }
View Full Code Here
368
369
370
371
372
373
374
375
376
377
378
379
380
      }
      CodeAttribute codeAttr = minfo.getCodeAttribute();
      if (codeAttr == null) {
        continue;
      }
      CodeIterator iter = codeAttr.iterator();
      while (iter.hasNext()) {
        int pos = iter.next();
        pos = transformInvokevirtualsIntoGetfields(classfile, iter, pos);
        pos = transformInvokevirtualsIntoPutfields(classfile, iter, pos);
      }
      StackMapTable smt = MapMaker.make(classPool, minfo);
      codeAttr.setAttribute(smt);
View Full Code Here
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
         * if the attribute values were updated correctly, we would have to
         * detect it, and redo analysis, which is not cheap. Instead, we are
         * better off doing all changes in initialize() before everyone else has
         * a chance to muck things up.
         */
        CodeIterator iterator = minfo.getCodeAttribute().iterator();
        while (iterator.hasNext()) {
            try {
                int pos = iterator.next();
                int c = iterator.byteAt(pos);

                if (c == AALOAD)
                    initFrames(clazz, minfo);

                if (c == AALOAD || c == BALOAD || c == CALOAD || c == DALOAD
View Full Code Here
TOP

Related Classes of javassist.bytecode.CodeIterator

  • bytecodeparser.analysis.stack.StackAnalyzer
  • com.google.appengine.tck.coverage.CodeCoverage
  • cuchaz.enigma.convert.ClassIdentity
  • javassist.bytecode.analysis.Analyzer
  • javassist.bytecode.analysis.FramePrinter
  • javassist.bytecode.analysis.SubroutineScanner
  • javassist.bytecode.stackmap.BasicBlock$Maker
  • javassist.CodeConverter
  • javassist.convert.TransformAccessArrayField
  • javassist.CtBehavior
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.