Package javassist.bytecode

Examples of javassist.bytecode.CodeIterator.writeByte()

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                            // if the method call is one of the methods we are
                            // replacing
                            if (methodCallLocations.containsKey(val)) {
                                VirtualToStaticData data = methodCallLocations.get(val);
                                // change the call to an invokestatic
                                it.writeByte(CodeIterator.INVOKESTATIC, index);
                                // change the method that is being called
                                it.write16bit(newCallLocations.get(data), index + 1);
                                if (op == CodeIterator.INVOKEINTERFACE) {
                                    // INVOKEINTERFACE has some extra parameters
                                    it.writeByte(CodeIterator.NOP, index + 3);
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                                it.writeByte(CodeIterator.INVOKESTATIC, index);
                                // change the method that is being called
                                it.write16bit(newCallLocations.get(data), index + 1);
                                if (op == CodeIterator.INVOKEINTERFACE) {
                                    // INVOKEINTERFACE has some extra parameters
                                    it.writeByte(CodeIterator.NOP, index + 3);
                                    it.writeByte(CodeIterator.NOP, index + 4);
                                }
                                modifiedMethods.add(m);
                            }
                        }
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                                // change the method that is being called
                                it.write16bit(newCallLocations.get(data), index + 1);
                                if (op == CodeIterator.INVOKEINTERFACE) {
                                    // INVOKEINTERFACE has some extra parameters
                                    it.writeByte(CodeIterator.NOP, index + 3);
                                    it.writeByte(CodeIterator.NOP, index + 4);
                                }
                                modifiedMethods.add(m);
                            }
                        }
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                            // if the field access is for an added field
                            if (fieldAccessLocations.containsKey(val)) {
                                AddedFieldData data = fieldAccessLocations.get(val);
                                int arrayPos = file.getConstPool().addIntegerInfo(data.getArrayIndex());
                                // write over the field access with nop
                                it.writeByte(Opcode.NOP, index);
                                it.writeByte(Opcode.NOP, index + 1);
                                it.writeByte(Opcode.NOP, index + 2);

                                if (op == Opcode.PUTFIELD) {
                                    Bytecode b = new Bytecode(file.getConstPool());
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                            if (fieldAccessLocations.containsKey(val)) {
                                AddedFieldData data = fieldAccessLocations.get(val);
                                int arrayPos = file.getConstPool().addIntegerInfo(data.getArrayIndex());
                                // write over the field access with nop
                                it.writeByte(Opcode.NOP, index);
                                it.writeByte(Opcode.NOP, index + 1);
                                it.writeByte(Opcode.NOP, index + 2);

                                if (op == Opcode.PUTFIELD) {
                                    Bytecode b = new Bytecode(file.getConstPool());
                                    if (data.getDescriptor().charAt(0) != 'L' && data.getDescriptor().charAt(0) != '[') {
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                                AddedFieldData data = fieldAccessLocations.get(val);
                                int arrayPos = file.getConstPool().addIntegerInfo(data.getArrayIndex());
                                // write over the field access with nop
                                it.writeByte(Opcode.NOP, index);
                                it.writeByte(Opcode.NOP, index + 1);
                                it.writeByte(Opcode.NOP, index + 2);

                                if (op == Opcode.PUTFIELD) {
                                    Bytecode b = new Bytecode(file.getConstPool());
                                    if (data.getDescriptor().charAt(0) != 'L' && data.getDescriptor().charAt(0) != '[') {
                                        Boxing.box(b, data.getDescriptor().charAt(0));
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            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(),
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            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 );
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            int read_method_index = constPool.addMethodrefInfo(
                constPool.getThisClassInfo(),
                attributeDescriptor.getReader().getName(),
                attributeDescriptor.getReader().getSignature()
            );
            itr.writeByte( Opcode.INVOKESPECIAL, index );
            itr.write16bit( read_method_index, index+1 );
          }
          else {
            int write_method_index = constPool.addMethodrefInfo(
                constPool.getThisClassInfo(),
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            int write_method_index = constPool.addMethodrefInfo(
                constPool.getThisClassInfo(),
                attributeDescriptor.getWriter().getName(),
                attributeDescriptor.getWriter().getSignature()
            );
            itr.writeByte( Opcode.INVOKESPECIAL, index );
            itr.write16bit( write_method_index, index+1 );
          }
        }

        StackMapTable smt = MapMaker.make( classPool, methodInfo );
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