Example usage for org.objectweb.asm Opcodes LONG

List of usage examples for org.objectweb.asm Opcodes LONG

Introduction

In this page you can find the example usage for org.objectweb.asm Opcodes LONG.

Prototype

Integer LONG

To view the source code for org.objectweb.asm Opcodes LONG.

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Usage

From source file:blockphysics.asm.BPTransformer.java

License:Open Source License

private byte[] transformBlockPhysics(byte[] bytes) {
    /*try//  w w w  .  jav  a2 s .  co  m
    {
        FileOutputStream fos = new FileOutputStream("d:/BlockPhysics.orig.class");
        fos.write(bytes);
      fos.close();
    } catch (IOException e) {
       // TODO Auto-generated catch block
       e.printStackTrace();
    }*/

    try {
        Class.forName("org.bukkit.Bukkit");
        System.out.println("[BlockPhysics] Bukkit detected.");
    } catch (ClassNotFoundException e) {
        return bytes;
    }

    System.out.print("[BlockPhysics] Patching BlockPhysics.class ............");

    boolean ok = false;
    ClassNode classNode = new ClassNode();
    ClassReader classReader = new ClassReader(bytes);
    classReader.accept(classNode, 0);

    MethodNode m;
    Iterator<MethodNode> methods = classNode.methods.iterator();
    while (methods.hasNext()) {
        m = methods.next();
        if (m.name.equals("tickBlocksRandomMove") && m.desc.equals("(Ljr;)V")) {
            m.instructions.clear();
            m.localVariables.clear();

            InsnList toInject = new InsnList();

            toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "skipMove", "Z"));
            LabelNode l0 = new LabelNode();
            toInject.add(new JumpInsnNode(IFEQ, l0));
            toInject.add(new InsnNode(RETURN));
            toInject.add(l0);
            toInject.add(new FrameNode(Opcodes.F_SAME, 0, null, 0, null));
            toInject.add(new VarInsnNode(ALOAD, 0));
            toInject.add(new FieldInsnNode(GETFIELD, "jr", "G", "Lgnu/trove/map/hash/TLongShortHashMap;"));
            toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "gnu/trove/map/hash/TLongShortHashMap", "iterator",
                    "()Lgnu/trove/iterator/TLongShortIterator;"));
            toInject.add(new VarInsnNode(ASTORE, 1));
            LabelNode l1 = new LabelNode();
            toInject.add(l1);
            toInject.add(new FrameNode(Opcodes.F_APPEND, 1,
                    new Object[] { "gnu/trove/iterator/TLongShortIterator" }, 0, null));
            toInject.add(new VarInsnNode(ALOAD, 1));
            toInject.add(new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "hasNext",
                    "()Z"));
            LabelNode l2 = new LabelNode();
            toInject.add(new JumpInsnNode(IFEQ, l2));
            toInject.add(new VarInsnNode(ALOAD, 1));
            toInject.add(new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "advance",
                    "()V"));
            toInject.add(new VarInsnNode(ALOAD, 1));
            toInject.add(
                    new MethodInsnNode(INVOKEINTERFACE, "gnu/trove/iterator/TLongShortIterator", "key", "()J"));
            toInject.add(new VarInsnNode(LSTORE, 2));
            toInject.add(new VarInsnNode(ALOAD, 0));
            toInject.add(new InsnNode(POP));
            toInject.add(new VarInsnNode(LLOAD, 2));
            toInject.add(new MethodInsnNode(INVOKESTATIC, "abv", "keyToX", "(J)I"));
            toInject.add(new VarInsnNode(ISTORE, 4));
            toInject.add(new VarInsnNode(ALOAD, 0));
            toInject.add(new InsnNode(POP));
            toInject.add(new VarInsnNode(LLOAD, 2));
            toInject.add(new MethodInsnNode(INVOKESTATIC, "abv", "keyToZ", "(J)I"));
            toInject.add(new VarInsnNode(ISTORE, 5));
            toInject.add(new VarInsnNode(ILOAD, 4));
            toInject.add(new IntInsnNode(BIPUSH, 16));
            toInject.add(new InsnNode(IMUL));
            toInject.add(new VarInsnNode(ISTORE, 6));
            toInject.add(new VarInsnNode(ILOAD, 5));
            toInject.add(new IntInsnNode(BIPUSH, 16));
            toInject.add(new InsnNode(IMUL));
            toInject.add(new VarInsnNode(ISTORE, 7));
            toInject.add(new VarInsnNode(ALOAD, 0));
            toInject.add(new VarInsnNode(ILOAD, 4));
            toInject.add(new VarInsnNode(ILOAD, 5));
            toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "jr", "e", "(II)Ladq;"));
            toInject.add(new VarInsnNode(ASTORE, 8));
            toInject.add(new VarInsnNode(ALOAD, 8));
            toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adq", "i", "()[Ladr;"));
            toInject.add(new VarInsnNode(ASTORE, 12));
            toInject.add(new VarInsnNode(ALOAD, 12));
            toInject.add(new InsnNode(ARRAYLENGTH));
            toInject.add(new VarInsnNode(ISTORE, 9));
            toInject.add(new InsnNode(ICONST_0));
            toInject.add(new VarInsnNode(ISTORE, 10));
            LabelNode l3 = new LabelNode();
            toInject.add(l3);
            toInject.add(new FrameNode(Opcodes.F_FULL, 12,
                    new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER,
                            Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER,
                            Opcodes.INTEGER, Opcodes.TOP, "[Ladr;" },
                    0, new Object[] {}));
            toInject.add(new VarInsnNode(ILOAD, 10));
            toInject.add(new VarInsnNode(ILOAD, 9));
            LabelNode l4 = new LabelNode();
            toInject.add(new JumpInsnNode(IF_ICMPGE, l4));
            toInject.add(new VarInsnNode(ALOAD, 12));
            toInject.add(new VarInsnNode(ILOAD, 10));
            toInject.add(new InsnNode(AALOAD));
            toInject.add(new VarInsnNode(ASTORE, 13));
            toInject.add(new VarInsnNode(ALOAD, 13));
            LabelNode l5 = new LabelNode();
            toInject.add(new JumpInsnNode(IFNULL, l5));
            toInject.add(new InsnNode(ICONST_0));
            toInject.add(new VarInsnNode(ISTORE, 14));
            LabelNode l6 = new LabelNode();
            toInject.add(l6);
            toInject.add(new FrameNode(Opcodes.F_APPEND, 2, new Object[] { "adr", Opcodes.INTEGER }, 0, null));
            toInject.add(new VarInsnNode(ILOAD, 14));
            toInject.add(new InsnNode(ICONST_3));
            toInject.add(new JumpInsnNode(IF_ICMPGE, l5));
            toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I"));
            toInject.add(new InsnNode(ICONST_3));
            toInject.add(new InsnNode(IMUL));
            toInject.add(new LdcInsnNode(new Integer(1013904223)));
            toInject.add(new InsnNode(IADD));
            toInject.add(new FieldInsnNode(PUTSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I"));
            toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "updateLCG", "I"));
            toInject.add(new InsnNode(ICONST_2));
            toInject.add(new InsnNode(ISHR));
            toInject.add(new VarInsnNode(ISTORE, 11));
            toInject.add(new VarInsnNode(ILOAD, 11));
            toInject.add(new IntInsnNode(BIPUSH, 15));
            toInject.add(new InsnNode(IAND));
            toInject.add(new VarInsnNode(ISTORE, 15));
            toInject.add(new VarInsnNode(ILOAD, 11));
            toInject.add(new IntInsnNode(BIPUSH, 8));
            toInject.add(new InsnNode(ISHR));
            toInject.add(new IntInsnNode(BIPUSH, 15));
            toInject.add(new InsnNode(IAND));
            toInject.add(new VarInsnNode(ISTORE, 16));
            toInject.add(new VarInsnNode(ILOAD, 11));
            toInject.add(new IntInsnNode(BIPUSH, 16));
            toInject.add(new InsnNode(ISHR));
            toInject.add(new IntInsnNode(BIPUSH, 15));
            toInject.add(new InsnNode(IAND));
            toInject.add(new VarInsnNode(ISTORE, 17));
            toInject.add(new VarInsnNode(ALOAD, 13));
            toInject.add(new VarInsnNode(ILOAD, 15));
            toInject.add(new VarInsnNode(ILOAD, 17));
            toInject.add(new VarInsnNode(ILOAD, 16));
            toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "a", "(III)I"));
            toInject.add(new VarInsnNode(ISTORE, 18));
            toInject.add(new VarInsnNode(ALOAD, 13));
            toInject.add(new VarInsnNode(ILOAD, 15));
            toInject.add(new VarInsnNode(ILOAD, 17));
            toInject.add(new VarInsnNode(ILOAD, 16));
            toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "b", "(III)I"));
            toInject.add(new VarInsnNode(ISTORE, 19));
            toInject.add(new FieldInsnNode(GETSTATIC, "blockphysics/BlockPhysics", "blockSet",
                    "[[Lblockphysics/BlockDef;"));
            toInject.add(new VarInsnNode(ILOAD, 18));
            toInject.add(new InsnNode(AALOAD));
            toInject.add(new VarInsnNode(ILOAD, 19));
            toInject.add(new InsnNode(AALOAD));
            toInject.add(new FieldInsnNode(GETFIELD, "blockphysics/BlockDef", "randomtick", "Z"));
            LabelNode l7 = new LabelNode();
            toInject.add(new JumpInsnNode(IFEQ, l7));
            toInject.add(new VarInsnNode(ALOAD, 0));
            toInject.add(new VarInsnNode(ILOAD, 15));
            toInject.add(new VarInsnNode(ILOAD, 6));
            toInject.add(new InsnNode(IADD));
            toInject.add(new VarInsnNode(ILOAD, 17));
            toInject.add(new VarInsnNode(ALOAD, 13));
            toInject.add(new MethodInsnNode(INVOKEVIRTUAL, "adr", "d", "()I"));
            toInject.add(new InsnNode(IADD));
            toInject.add(new VarInsnNode(ILOAD, 16));
            toInject.add(new VarInsnNode(ILOAD, 7));
            toInject.add(new InsnNode(IADD));
            toInject.add(new VarInsnNode(ILOAD, 18));
            toInject.add(new VarInsnNode(ILOAD, 19));
            toInject.add(new InsnNode(ICONST_0));
            toInject.add(new MethodInsnNode(INVOKESTATIC, "blockphysics/BlockPhysics", "tryToMove",
                    "(Labv;IIIIIZ)Z"));
            toInject.add(new InsnNode(POP));
            toInject.add(l7);
            toInject.add(new FrameNode(Opcodes.F_FULL, 14,
                    new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER,
                            Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER,
                            Opcodes.INTEGER, Opcodes.INTEGER, "[Ladr;", "adr", Opcodes.INTEGER },
                    0, new Object[] {}));
            toInject.add(new IincInsnNode(14, 1));
            toInject.add(new JumpInsnNode(GOTO, l6));
            toInject.add(l5);
            toInject.add(new FrameNode(Opcodes.F_FULL, 12,
                    new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator", Opcodes.LONG, Opcodes.INTEGER,
                            Opcodes.INTEGER, Opcodes.INTEGER, Opcodes.INTEGER, "adq", Opcodes.INTEGER,
                            Opcodes.INTEGER, Opcodes.TOP, "[Ladr;" },
                    0, new Object[] {}));
            toInject.add(new IincInsnNode(10, 1));
            toInject.add(new JumpInsnNode(GOTO, l3));
            toInject.add(l4);
            toInject.add(new FrameNode(Opcodes.F_FULL, 2,
                    new Object[] { "jr", "gnu/trove/iterator/TLongShortIterator" }, 0, new Object[] {}));
            toInject.add(new JumpInsnNode(GOTO, l1));
            toInject.add(l2);
            toInject.add(new FrameNode(Opcodes.F_CHOP, 1, null, 0, null));
            toInject.add(new InsnNode(RETURN));

            m.instructions.add(toInject);

            ok = true;
            break;
        }
    }

    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    classNode.accept(cw);

    if (ok)
        System.out.println("OK");
    else
        System.out.println("Failed." + ok);

    /*try
    {
       FileOutputStream fos = new FileOutputStream("d:/BlockPhysics.class");
       fos.write(cw.toByteArray());
     fos.close();
    } catch (IOException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }*/

    return cw.toByteArray();
}

From source file:br.usp.each.saeg.badua.core.internal.instr.CoverageMethodTransformer.java

License:Open Source License

@Override
@SuppressWarnings("unchecked")
public void transform(final MethodNode methodNode) {

    final DefUseAnalyzer analyzer = new DefUseAnalyzer();
    try {/*from ww  w  . j a v a  2s.c  om*/
        analyzer.analyze(className, methodNode);
    } catch (final AnalyzerException e) {
        throw new RuntimeException(e);
    }

    final DefUseFrame[] frames = analyzer.getDefUseFrames();
    final Variable[] variables = analyzer.getVariables();
    final int[][] successors = analyzer.getSuccessors();
    final int[][] predecessors = analyzer.getPredecessors();
    final int[][] basicBlocks = analyzer.getBasicBlocks();
    final int[] leaders = analyzer.getLeaders();

    final DefUseChain[] chains = DefUseChain.toBasicBlock(
            new DepthFirstDefUseChainSearch().search(frames, variables, successors, predecessors), leaders,
            basicBlocks);

    this.chains = chains;
    if (chains.length == 0)
        return;

    // basic block definitions
    final Set<Variable>[] defs = (Set<Variable>[]) new Set<?>[basicBlocks.length];
    for (int b = 0; b < basicBlocks.length; b++) {
        defs[b] = new HashSet<Variable>();
        for (final int insnIndex : basicBlocks[b]) {
            defs[b].addAll(frames[insnIndex].getDefinitions());
        }
    }

    // bit-sets
    final BitSet[] potcov = new BitSet[basicBlocks.length];
    final BitSet[] potcovpuse = new BitSet[basicBlocks.length];
    final BitSet[] born = new BitSet[basicBlocks.length];
    final BitSet[] disabled = new BitSet[basicBlocks.length];
    final BitSet[] sleepy = new BitSet[basicBlocks.length];
    for (int b = 0; b < basicBlocks.length; b++) {

        potcov[b] = new BitSet(chains.length);
        potcovpuse[b] = new BitSet(chains.length);
        born[b] = new BitSet(chains.length);
        disabled[b] = new BitSet(chains.length);
        sleepy[b] = new BitSet(chains.length);

        for (int i = 0; i < chains.length; i++) {

            final DefUseChain chain = chains[i];

            if (chain.target != -1 ? chain.target == b : chain.use == b) {
                potcov[b].set(i);
                if (chain.target != -1) {
                    potcovpuse[b].set(i);
                }
            }

            if (chain.def == b) {
                born[b].set(i);
            }

            if (chain.def != b && defs[b].contains(variables[chain.var])) {
                disabled[b].set(i);
            }

            if (chain.target != -1) {
                if (chain.use != b) {
                    sleepy[b].set(i);
                }
            }

        }
    }

    // first/last valid instructions
    final AbstractInsnNode[] first = new AbstractInsnNode[basicBlocks.length];
    final AbstractInsnNode[] last = new AbstractInsnNode[basicBlocks.length];
    for (int b = 0; b < basicBlocks.length; b++) {
        for (final int insnIndex : basicBlocks[b]) {
            final AbstractInsnNode insn = methodNode.instructions.get(insnIndex);

            // skip
            switch (insn.getType()) {
            case AbstractInsnNode.LABEL:
            case AbstractInsnNode.FRAME:
            case AbstractInsnNode.LINE:
                continue;
            }

            if (first[b] == null) {
                first[b] = insn;
            }
            last[b] = insn;
        }
    }

    AbstractInsnNode insn = methodNode.instructions.getFirst();
    final int windows = (chains.length + 63) / 64;
    final int[] indexes = new int[windows];
    for (int w = 0; w < windows; w++) {
        indexes[w] = idGen.nextId();
        LabelFrameNode.insertBefore(insn, methodNode.instructions, init(methodNode, w));
    }

    for (int b = 0; b < basicBlocks.length; b++) {

        final long[] lPotcov = BitSetUtils.toLongArray(potcov[b], windows);
        final long[] lPotcovpuse = BitSetUtils.toLongArray(potcovpuse[b], windows);
        final long[] lBorn = BitSetUtils.toLongArray(born[b], windows);
        final long[] lDisabled = BitSetUtils.toLongArray(disabled[b], windows);
        final long[] lSleepy = BitSetUtils.toLongArray(sleepy[b], windows);

        for (int w = 0; w < windows; w++) {

            final int nPredecessors = predecessors[basicBlocks[b][0]].length;
            final Probe p = probe(methodNode, w, nPredecessors == 0);

            p.potcov = lPotcov[w];
            p.potcovpuse = lPotcovpuse[w];
            p.born = lBorn[w];
            p.disabled = lDisabled[w];
            p.sleepy = lSleepy[w];
            p.singlePredecessor = nPredecessors == 1;

            LabelFrameNode.insertBefore(first[b], methodNode.instructions, p);

        }
        if (isReturn(last[b].getOpcode())) {
            for (int w = 0; w < windows; w++) {
                final Probe p = update(methodNode, w, indexes[w]);
                LabelFrameNode.insertBefore(last[b], methodNode.instructions, p);
            }
        }
    }

    // Finally, update the frames
    while (insn != null) {
        if (insn instanceof FrameNode) {
            final FrameNode frame = (FrameNode) insn;
            frame.local = new ArrayList<Object>(frame.local);
            int size = 0;
            for (final Object obj : frame.local) {
                size++;
                if (obj.equals(Opcodes.DOUBLE) || obj.equals(Opcodes.LONG)) {
                    size++;
                }
            }
            while (size < methodNode.maxLocals) {
                frame.local.add(Opcodes.TOP);
                size++;
            }
            final Integer type = typeOfVars();
            for (int i = 0; i < windows; i++) {
                frame.local.add(type);
                frame.local.add(type);
                frame.local.add(type);
            }
        }
        insn = insn.getNext();
    }

    methodNode.maxLocals = methodNode.maxLocals + windows * numOfVars();
    methodNode.maxStack = methodNode.maxStack + 6;
}

From source file:br.usp.each.saeg.badua.core.internal.instr.CoverageMethodTransformer.java

License:Open Source License

private Integer typeOfVars() {
    if (chains.length <= 32) {
        // three integers
        return Opcodes.INTEGER;
    } else {//from   w w  w. j a  v  a2 s.c om
        // three longs
        return Opcodes.LONG;
    }
}

From source file:ch.eiafr.cojac.instrumenters.FloatProxyMethod.java

License:Apache License

private Object[] addReturnTypeTo(Object[] stackContent, Type returnType) {
    int sort = returnType.getSort();
    if (sort == Type.VOID)
        return stackContent;
    if (sort == Type.ARRAY || sort == Type.OBJECT)
        return addTo(stackContent, returnType.getInternalName());
    // else primitive type
    switch (sort) {
    case Type.BOOLEAN:
    case Type.BYTE:
    case Type.CHAR:
    case Type.SHORT:
    case Type.INT:
        return addTo(stackContent, Opcodes.INTEGER);
    case Type.LONG:
        return addTo(stackContent, Opcodes.LONG);
    //return addTo(addTo(stackContent, Opcodes.LONG), Opcodes.TOP);
    }// ww w.j a  v  a  2s.c o  m
    return stackContent;
}

From source file:com.google.code.jconts.instrument.util.Frames.java

License:Apache License

public static Object toFrameType(Type type) {
    switch (type.getSort()) {
    case Type.BOOLEAN:
    case Type.CHAR:
    case Type.BYTE:
    case Type.SHORT:
    case Type.INT:
        return Opcodes.INTEGER;
    case Type.FLOAT:
        return Opcodes.FLOAT;
    case Type.LONG:
        return Opcodes.LONG;
    case Type.DOUBLE:
        return Opcodes.DOUBLE;
    case Type.ARRAY:
        return type.getDescriptor();
    // case Type.OBJECT:
    default:/*from w  ww.j a  v a  2s .c o  m*/
        return type.getInternalName();
    }
}

From source file:com.google.code.jconts.instrument.util.Frames.java

License:Apache License

public static Type fromFrameType(final Object type) {
    if (type instanceof String) {
        return Type.getObjectType((String) type);
    } else if (type == Opcodes.INTEGER) {
        return Type.INT_TYPE;
    } else if (type == Opcodes.FLOAT) {
        return Type.FLOAT_TYPE;
    } else if (type == Opcodes.LONG) {
        return Type.LONG_TYPE;
    } else if (type == Opcodes.DOUBLE) {
        return Type.DOUBLE_TYPE;
    }//  w  w w.  j a  v a  2  s  .c om
    throw new IllegalArgumentException("Unexpected local type: " + type);
}

From source file:com.google.devtools.build.android.desugar.BytecodeTypeInference.java

License:Open Source License

/** Convert the type in stack map frame to inference type. */
private InferredType convertTypeInStackMapFrame(Object typeInStackMapFrame) {
    if (typeInStackMapFrame == Opcodes.TOP) {
        return InferredType.TOP;
    } else if (typeInStackMapFrame == Opcodes.INTEGER) {
        return InferredType.INT;
    } else if (typeInStackMapFrame == Opcodes.FLOAT) {
        return InferredType.FLOAT;
    } else if (typeInStackMapFrame == Opcodes.DOUBLE) {
        return InferredType.DOUBLE;
    } else if (typeInStackMapFrame == Opcodes.LONG) {
        return InferredType.LONG;
    } else if (typeInStackMapFrame == Opcodes.NULL) {
        return InferredType.NULL;
    } else if (typeInStackMapFrame == Opcodes.UNINITIALIZED_THIS) {
        return InferredType.UNINITIALIZED_THIS;
    } else if (typeInStackMapFrame instanceof String) {
        String referenceTypeName = (String) typeInStackMapFrame;
        if (referenceTypeName.charAt(0) == '[') {
            return InferredType.createNonUninitializedType(referenceTypeName);
        } else {/*from w  ww  .  j a v a 2  s .c  o  m*/
            return InferredType.createNonUninitializedType('L' + referenceTypeName + ';');
        }
    } else if (typeInStackMapFrame instanceof Label) {
        Label label = (Label) typeInStackMapFrame;
        return InferredType.createUninitializedType(label);
    } else {
        throw new RuntimeException("Cannot reach here. Unhandled element: value=" + typeInStackMapFrame
                + ", class=" + typeInStackMapFrame.getClass() + ". The current method being desugared is "
                + methodSignature);
    }
}

From source file:com.ibm.layout.GenArray1D.java

License:Open Source License

/**
 * Generate bytecodes for runtime class/*from   ww  w .jav  a 2 s  . co  m*/
 * 
 * @return byte array containing bytecodes for runtime class
 * @throws Exception
 */
public byte[] genBytecode() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    MethodVisitor mv;
    FieldVisitor fv;
    final boolean itf = false;

    /* If user-defined array class is supplied, use it as superclass, and use its name instead of generating it */
    cw.visit(V1_8, ACC_FINAL + ACC_SUPER, arrayImplClassName, arrayInterfaceClassSig, "java/lang/Object",
            new String[] { arrayInterfaceClassName });
    {
        fv = cw.visitField(ACC_PROTECTED + ACC_FINAL, "elementSize", "J", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL, "arraySize", "J", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PROTECTED + ACC_FINAL, "length", "J", null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "<init>", "(JJ)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "length", "J");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "elementSize", "J");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitInsn(LMUL);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "arraySize", "J");
        mv.visitInsn(RETURN);
        mv.visitMaxs(5, 5);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "sizeof", "()J", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "arraySize", "J");
        mv.visitInsn(LRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "java/lang/StringBuffer");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("[");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuffer", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitVarInsn(ASTORE, 1);
        mv.visitInsn(LCONST_0);
        mv.visitVarInsn(LSTORE, 2);
        Label l0 = new Label();
        mv.visitJumpInsn(GOTO, l0);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitFrame(Opcodes.F_APPEND, 2, new Object[] { "java/lang/StringBuffer", Opcodes.LONG }, 0, null);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
        mv.visitInsn(DUP);
        mv.visitLdcInsn(" ");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(J)L" + elementInterfaceClassName + ";",
                false);
        mv.visitMethodInsn(INVOKEINTERFACE, elementInterfaceClassName, "toString", "()Ljava/lang/String;",
                true);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuffer;", false);
        mv.visitInsn(POP);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitInsn(LCONST_1);
        mv.visitInsn(LADD);
        mv.visitVarInsn(LSTORE, 2);
        mv.visitLabel(l0);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "length", "J");
        mv.visitInsn(LCMP);
        mv.visitJumpInsn(IFLT, l1);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitLdcInsn(" ]");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuffer;", false);
        mv.visitInsn(POP);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "toString", "()Ljava/lang/String;", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(5, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "getComponentType", "()Ljava/lang/Class;",
                "()Ljava/lang/Class<*>;", null);
        mv.visitCode();
        mv.visitLdcInsn(Type.getType("L" + elementInterfaceClassName + ";"));
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_FINAL, "getLength", "()J", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "length", "J");
        mv.visitInsn(LRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "at", "(J)L" + elementInterfaceClassName + ";", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, elementImplClassName);
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, elementImplClassName, "<init>", "()V", itf);
        mv.visitVarInsn(ASTORE, 3);
        mv.visitTypeInsn(NEW, "com/ibm/layout/Location");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, this.arrayImplClassName, "location", "Lcom/ibm/layout/Location;");
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "sizeof", "()J", itf);
        mv.visitInsn(LMUL);
        mv.visitMethodInsn(INVOKESPECIAL, "com/ibm/layout/Location", "<init>", "(Lcom/ibm/layout/Location;J)V",
                itf);
        mv.visitVarInsn(ASTORE, 4);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitVarInsn(ALOAD, 4);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "bindLocation", "(Lcom/ibm/layout/Location;)V",
                itf);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(7, 5);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "range", "(JJ)Lcom/ibm/layout/Array1D;",
                "(JJ)Lcom/ibm/layout/Array1D<" + elementInterfaceClassName + ";>;", null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, arrayImplClassName);
        mv.visitInsn(DUP);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, this.arrayImplClassName, "elementSize", "J");
        mv.visitMethodInsn(INVOKESPECIAL, this.arrayImplClassName, "<init>", "(JJ)V", itf);
        mv.visitVarInsn(ASTORE, 5);
        mv.visitTypeInsn(NEW, "com/ibm/layout/Location");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "location", "Lcom/ibm/layout/Location;");
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "elementSize", "J");
        mv.visitInsn(LMUL);
        mv.visitMethodInsn(INVOKESPECIAL, "com/ibm/layout/Location", "<init>", "(Lcom/ibm/layout/Location;J)V",
                itf);
        mv.visitVarInsn(ASTORE, 6);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitVarInsn(ALOAD, 6);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "bindLocation", "(Lcom/ibm/layout/Location;)V",
                itf);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(7, 7);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "put", "(JL" + elementInterfaceClassName + ";)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(J)L" + elementInterfaceClassName + ";",
                itf);
        mv.visitTypeInsn(CHECKCAST, elementImplClassName);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitTypeInsn(CHECKCAST, elementImplClassName);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "copyFrom", "(L" + elementImplClassName + ";)V",
                itf);
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "at", "(J)Lcom/ibm/layout/Layout;", null,
                null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(J)L" + elementInterfaceClassName + ";",
                itf);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "put", "(JLcom/ibm/layout/Layout;)V", null,
                null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitTypeInsn(CHECKCAST, elementInterfaceClassName);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "put", "(JL" + elementInterfaceClassName + ";)V",
                itf);
        mv.visitInsn(RETURN);
        mv.visitMaxs(4, 4);
        mv.visitEnd();
    }

    ImplHelper.genLayoutTypeImpl(cw, mv, fv, arrayImplClassName, false);

    cw.visitEnd();

    return cw.toByteArray();
}

From source file:com.ibm.layout.GenArray2D.java

License:Open Source License

/**
 * Generate bytecodes for runtime class/*from w w  w .  jav a 2s  .  c om*/
 * 
 * @return byte array containing bytecodes for runtime class
 * @throws Exception
 */
public byte[] genBytecode() throws Exception {

    ClassWriter cw = new ClassWriter(0);
    MethodVisitor mv = null;
    FieldVisitor fv = null;
    final boolean itf = false;

    cw.visit(V1_8, ACC_FINAL + ACC_SUPER, arrayImplClassName, arrayInterfaceClassSig, "java/lang/Object",
            new String[] { arrayInterfaceClassName });
    {
        fv = cw.visitField(ACC_PROTECTED + ACC_FINAL, "dim1", "J", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PROTECTED + ACC_FINAL, "dim2", "J", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL, "elementSize", "J", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL, "arraySize", "J", null, null);
        fv.visitEnd();
    }

    {
        mv = cw.visitMethod(ACC_PROTECTED, "<init>", "(JJJ)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "dim1", "J");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "dim2", "J");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 5);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "elementSize", "J");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 5);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitInsn(LMUL);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitInsn(LMUL);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "arraySize", "J");
        mv.visitInsn(RETURN);
        mv.visitMaxs(5, 7);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "at", "(JJ)L" + elementInterfaceClassName + ";", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, elementImplClassName);
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, elementImplClassName, "<init>", "()V", itf);
        mv.visitVarInsn(ASTORE, 5);
        mv.visitTypeInsn(NEW, "com/ibm/layout/Location");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "location", "Lcom/ibm/layout/Location;");
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "dim2", "J");
        mv.visitInsn(LMUL);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitInsn(LADD);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "sizeof", "()J", itf);
        mv.visitInsn(LMUL);
        mv.visitMethodInsn(INVOKESPECIAL, "com/ibm/layout/Location", "<init>", "(Lcom/ibm/layout/Location;J)V",
                itf);
        mv.visitVarInsn(ASTORE, 6);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitVarInsn(ALOAD, 6);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "bindLocation", "(Lcom/ibm/layout/Location;)V",
                itf);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(7, 7);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "put", "(JJL" + elementInterfaceClassName + ";)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(JJ)L" + elementInterfaceClassName + ";",
                itf);
        mv.visitTypeInsn(CHECKCAST, elementImplClassName);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitTypeInsn(CHECKCAST, elementImplClassName);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "copyFrom", "(L" + elementImplClassName + ";)V",
                itf);
        mv.visitInsn(RETURN);
        mv.visitMaxs(5, 6);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "at", "(JJ)Lcom/ibm/layout/Layout;", null,
                null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(JJ)L" + elementInterfaceClassName + ";",
                itf);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(5, 5);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "put", "(JJLcom/ibm/layout/Layout;)V",
                null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitTypeInsn(CHECKCAST, elementInterfaceClassName);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "put", "(JJL" + elementInterfaceClassName + ";)V",
                itf);
        mv.visitInsn(RETURN);
        mv.visitMaxs(6, 6);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_FINAL, "dim1", "()J", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "dim1", "J");
        mv.visitInsn(LRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_FINAL, "dim2", "()J", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "dim2", "J");
        mv.visitInsn(LRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "sizeof", "()J", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "arraySize", "J");
        mv.visitInsn(LRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "java/lang/StringBuffer");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("[");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuffer", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitVarInsn(ASTORE, 1);
        mv.visitInsn(LCONST_0);
        mv.visitVarInsn(LSTORE, 2);
        Label l0 = new Label();
        mv.visitJumpInsn(GOTO, l0);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitFrame(Opcodes.F_APPEND, 2, new Object[] { "java/lang/StringBuffer", Opcodes.LONG }, 0, null);
        mv.visitInsn(LCONST_0);
        mv.visitVarInsn(LSTORE, 4);
        Label l2 = new Label();
        mv.visitJumpInsn(GOTO, l2);
        Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { Opcodes.LONG }, 0, null);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
        mv.visitInsn(DUP);
        mv.visitLdcInsn(" ");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitVarInsn(LLOAD, 4);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(JJ)Lcom/ibm/layout/Layout;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "toString", "()Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuffer;", false);
        mv.visitInsn(POP);
        mv.visitVarInsn(LLOAD, 4);
        mv.visitInsn(LCONST_1);
        mv.visitInsn(LADD);
        mv.visitVarInsn(LSTORE, 4);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(LLOAD, 4);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "dim2", "J");
        mv.visitInsn(LCMP);
        mv.visitJumpInsn(IFLT, l3);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitInsn(LCONST_1);
        mv.visitInsn(LADD);
        mv.visitVarInsn(LSTORE, 2);
        mv.visitLabel(l0);
        mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "dim1", "J");
        mv.visitInsn(LCMP);
        mv.visitJumpInsn(IFLT, l1);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitLdcInsn(" ]");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuffer;", false);
        mv.visitInsn(POP);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "toString", "()Ljava/lang/String;", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(7, 6);
        mv.visitEnd();
    }

    ImplHelper.genLayoutTypeImpl(cw, mv, fv, arrayImplClassName, false);
    cw.visitEnd();

    return cw.toByteArray();
}

From source file:com.ibm.layout.GenVLArray.java

License:Open Source License

/**
 * Generate bytecodes for runtime class//  w  ww. j  a va  2s  .  c o  m
 * 
 * @return byte array containing bytecodes for runtime class
 * @throws Exception
 */
public byte[] genBytecode() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    MethodVisitor mv;
    FieldVisitor fv;
    final boolean itf = false;

    /* If user-defined array class is supplied, use it as superclass, and use its name instead of generating it */
    cw.visit(V1_8, ACC_FINAL + ACC_SUPER, arrayImplClassName, arrayInterfaceClassSig, "java/lang/Object",
            new String[] { arrayInterfaceClassName });
    {
        fv = cw.visitField(ACC_PROTECTED + ACC_FINAL, "length", "J", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PROTECTED + ACC_FINAL, "elementSize", "J", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE, "arraySize", "J", null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "<init>", "(JJ)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "elementSize", "J");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "length", "J");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitInsn(LMUL);
        mv.visitFieldInsn(PUTFIELD, arrayImplClassName, "arraySize", "J");
        mv.visitInsn(RETURN);
        mv.visitMaxs(5, 5);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "sizeof", "()J", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "arraySize", "J");
        mv.visitInsn(LRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "getComponentType", "()Ljava/lang/Class;",
                "()Ljava/lang/Class<*>;", null);
        mv.visitCode();
        mv.visitLdcInsn(Type.getType("L" + elementInterfaceClassName + ";"));
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 0);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_FINAL, "getVLALength", "()J", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "length", "J");
        mv.visitInsn(LRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "at", "(J)L" + elementInterfaceClassName + ";", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, elementImplClassName);
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, elementImplClassName, "<init>", "()V", false);
        mv.visitVarInsn(ASTORE, 3);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitTypeInsn(NEW, "com/ibm/layout/Location");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "location", "Lcom/ibm/layout/Location;");
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "elementSize", "J");
        mv.visitInsn(LMUL);
        mv.visitMethodInsn(INVOKESPECIAL, "com/ibm/layout/Location", "<init>", "(Lcom/ibm/layout/Location;J)V",
                false);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "bindLocation", "(Lcom/ibm/layout/Location;)V",
                false);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(8, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "range", "(JJ)Lcom/ibm/layout/Array1D;",
                "(JJ)Lcom/ibm/layout/Array1D<" + elementInterfaceClassName + ";>;", null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, arrayImplClassName);
        mv.visitInsn(DUP);
        mv.visitVarInsn(LLOAD, 3);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, this.arrayImplClassName, "elementSize", "J");
        mv.visitMethodInsn(INVOKESPECIAL, this.arrayImplClassName, "<init>", "(JJ)V", itf);
        mv.visitVarInsn(ASTORE, 5);
        mv.visitTypeInsn(NEW, "com/ibm/layout/Location");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "location", "Lcom/ibm/layout/Location;");
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "elementSize", "J");
        mv.visitInsn(LMUL);
        mv.visitMethodInsn(INVOKESPECIAL, "com/ibm/layout/Location", "<init>", "(Lcom/ibm/layout/Location;J)V",
                itf);
        mv.visitVarInsn(ASTORE, 6);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitVarInsn(ALOAD, 6);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "bindLocation", "(Lcom/ibm/layout/Location;)V",
                itf);
        mv.visitVarInsn(ALOAD, 5);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(7, 7);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "put", "(JLcom/ibm/layout/Layout;)V", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, elementImplClassName);
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, elementImplClassName, "<init>", "()V", false);
        mv.visitVarInsn(ASTORE, 4);
        mv.visitVarInsn(ALOAD, 4);
        mv.visitTypeInsn(NEW, "com/ibm/layout/Location");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "location", "Lcom/ibm/layout/Location;");
        mv.visitVarInsn(LLOAD, 1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "elementSize", "J");
        mv.visitInsn(LMUL);
        mv.visitMethodInsn(INVOKESPECIAL, "com/ibm/layout/Location", "<init>", "(Lcom/ibm/layout/Location;J)V",
                false);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "bindLocation", "(Lcom/ibm/layout/Location;)V",
                false);
        mv.visitVarInsn(ALOAD, 4);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "copyFrom", "(Lcom/ibm/layout/Layout;)V",
                false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(8, 5);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "put", "(JL" + elementInterfaceClassName + ";)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(J)L" + elementInterfaceClassName + ";",
                itf);
        mv.visitTypeInsn(CHECKCAST, elementImplClassName);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitTypeInsn(CHECKCAST, elementImplClassName);
        mv.visitMethodInsn(INVOKEVIRTUAL, elementImplClassName, "copyFrom", "(L" + elementImplClassName + ";)V",
                itf);
        mv.visitInsn(RETURN);
        mv.visitMaxs(3, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC, "at", "(J)Lcom/ibm/layout/Layout;", null,
                null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(J)L" + elementInterfaceClassName + ";",
                itf);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "toString", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "java/lang/StringBuffer");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("[");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuffer", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitVarInsn(ASTORE, 1);
        mv.visitInsn(LCONST_0);
        mv.visitVarInsn(LSTORE, 2);
        Label l0 = new Label();
        mv.visitJumpInsn(GOTO, l0);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitFrame(Opcodes.F_APPEND, 2, new Object[] { "java/lang/StringBuffer", Opcodes.LONG }, 0, null);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitTypeInsn(NEW, "java/lang/StringBuilder");
        mv.visitInsn(DUP);
        mv.visitLdcInsn(" ");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V", false);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitMethodInsn(INVOKEVIRTUAL, arrayImplClassName, "at", "(J)L" + elementInterfaceClassName + ";",
                false);
        mv.visitMethodInsn(INVOKEINTERFACE, elementInterfaceClassName, "toString", "()Ljava/lang/String;",
                true);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuilder;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuffer;", false);
        mv.visitInsn(POP);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitInsn(LCONST_1);
        mv.visitInsn(LADD);
        mv.visitVarInsn(LSTORE, 2);
        mv.visitLabel(l0);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(LLOAD, 2);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, arrayImplClassName, "length", "J");
        mv.visitInsn(LCMP);
        mv.visitJumpInsn(IFLT, l1);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitLdcInsn(" ]");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "append",
                "(Ljava/lang/String;)Ljava/lang/StringBuffer;", false);
        mv.visitInsn(POP);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/StringBuffer", "toString", "()Ljava/lang/String;", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(5, 4);
        mv.visitEnd();
    }

    ImplHelper.genLayoutTypeImpl(cw, mv, fv, arrayImplClassName, false);

    cw.visitEnd();

    return cw.toByteArray();
}