Examples of org.objectweb.asm.ByteVector

org.objectweb.asm.ByteVector
A dynamically extensible vector of bytes. This class is roughly equivalent to a DataOutputStream on top of a ByteArrayOutputStream, but is more efficient. @author Eric Bruneton

    return new SignatureAttribute(cr.readUTF8(off, buf));
  }


  protected ByteVector write (ClassWriter cw, byte[] code,
                              int len, int maxStack, int maxLocals) {
    return new ByteVector().putShort(cw.newUTF8(signature));
  }

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    return atr;
  }


  protected ByteVector write (ClassWriter cw, byte[] code,
                              int len, int maxStack, int maxLocals) {
    return Annotation.writeAnnotations(new ByteVector(), annotations, cw);
  }

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        final ClassWriter cw,
        final byte[] code,
        final int len,
        final int maxStack,
        final int maxLocals) {
        return new ByteVector().putByteArray(m_bytes, 0, m_bytes.length);
    }

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        final byte[] code,
        final int len,
        final int maxStack,
        final int maxLocals)
    {
        return new ByteVector().putShort(cw.newUTF8(comment));
    }

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        final byte[] code,
        final int len,
        final int maxStack,
        final int maxLocals)
    {
        return new ByteVector();
    }

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        final byte[] code,
        final int len,
        final int maxStack,
        final int maxLocals)
    {
        return new ByteVector();
    }

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        final byte[] code,
        final int len,
        final int maxStack,
        final int maxLocals)
    {
      ByteVector bv = new ByteVector();


        bv.putInt(retroweaverBuildNumber);
        bv.putInt(originalClassVersion);
        bv.putLong(timestamp);


        return bv;
    }

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            final ClassWriter cw,
            final byte[] code,
            final int len,
            final int maxStack,
            final int maxLocals) {
        return new ByteVector().putByteArray(m_bytes, 0, m_bytes.length);
    }

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        byte[] code,
        int len,
        int maxStack,
        int maxLocals)
    {
        ByteVector bv = new ByteVector();
        // TODO verify this value (MAX_SHORT)
        boolean isExtCodeSize = code != null && code.length > MAX_SHORT;
        writeSize(frames.size() - 1, bv, isExtCodeSize);


        if (frames.size() < 2) {
            return bv;
        }


        boolean isExtLocals = maxLocals > MAX_SHORT;
        boolean isExtStack = maxStack > MAX_SHORT;


        // skip the first frame
        StackMapFrame frame = (StackMapFrame) frames.get(0);
        List locals = frame.locals;
        int offset = frame.label.getOffset();


        for (int i = 1; i < frames.size(); i++) {
            frame = (StackMapFrame) frames.get(i);


            List clocals = frame.locals;
            List cstack = frame.stack;
            int coffset = frame.label.getOffset();


            int clocalsSize = clocals.size();
            int cstackSize = cstack.size();


            int localsSize = locals.size();


            int delta = coffset - offset;


            int type = FULL_FRAME;
            int k = 0;
            if (cstackSize == 0) {
                k = clocalsSize - localsSize;
                switch (k) {
                    case -3:
                    case -2:
                    case -1:
                        type = CHOP_FRAME; // CHOP or FULL
                        localsSize = clocalsSize; // for full_frame check
                        break;


                    case 0:
                        // SAME, SAME_EXTENDED or FULL
                        type = delta < 64 ? SAME_FRAME : SAME_FRAME_EXTENDED;
                        break;


                    case 1:
                    case 2:
                    case 3:
                        type = APPEND_FRAME; // APPEND or FULL
                        break;
                }
            } else if (localsSize == clocalsSize && cstackSize == 1) {
                // SAME_LOCAL_1_STACK or FULL
                type = delta < 63
                        ? SAME_LOCALS_1_STACK_ITEM_FRAME
                        : SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED;
            }


            if (type != FULL_FRAME) {
                // verify if stack and locals are the same
                for (int j = 0; j < localsSize && type != FULL_FRAME; j++) {
                    if (!locals.get(j).equals(clocals.get(j)))
                        type = FULL_FRAME;
                }
            }


            switch (type) {
                case SAME_FRAME:
                    bv.putByte(delta);
                    break;


                case SAME_LOCALS_1_STACK_ITEM_FRAME:
                    bv.putByte(SAME_LOCALS_1_STACK_ITEM_FRAME + delta);
                    writeTypeInfos(bv, cw, cstack, 0, 1);
                    break;


                case SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED:
                    bv.putByte(SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED);
                    writeSize(delta, bv, isExtCodeSize);
                    writeTypeInfos(bv, cw, cstack, 0, 1);
                    break;


                case SAME_FRAME_EXTENDED:
                    bv.putByte(SAME_FRAME_EXTENDED);
                    writeSize(delta, bv, isExtCodeSize);
                    break;


                case CHOP_FRAME:
                    bv.putByte(SAME_FRAME_EXTENDED + k); // negative k
                    writeSize(delta, bv, isExtCodeSize);
                    break;


                case APPEND_FRAME:
                    bv.putByte(SAME_FRAME_EXTENDED + k); // positive k
                    writeSize(delta, bv, isExtCodeSize);
                    writeTypeInfos(bv,
                            cw,
                            clocals,
                            clocalsSize - 1,
                            clocalsSize);
                    break;


                case FULL_FRAME:
                    bv.putByte(FULL_FRAME);
                    writeSize(delta, bv, isExtCodeSize);
                    writeSize(clocalsSize, bv, isExtLocals);
                    writeTypeInfos(bv, cw, clocals, 0, clocalsSize);
                    writeSize(cstackSize, bv, isExtStack);
                    writeTypeInfos(bv, cw, cstack, 0, cstackSize);

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        byte[] code,
        int len,
        int maxStack,
        int maxLocals)
    {
        ByteVector bv = new ByteVector();
        if (code != null && code.length > MAX_SIZE) { // TODO verify value
            bv.putInt(frames.size());
        } else {
            bv.putShort(frames.size());
        }
        for (int i = 0; i < frames.size(); i++) {
            writeFrame((StackMapFrame) frames.get(i),
                    cw,
                    maxStack,

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