Example usage for org.objectweb.asm.tree InsnList InsnList

List of usage examples for org.objectweb.asm.tree InsnList InsnList

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In this page you can find the example usage for org.objectweb.asm.tree InsnList InsnList.

Prototype

InsnList

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Usage

From source file:org.apache.commons.javaflow.providers.asm3.ContinuableMethodNode.java

License:Apache License

void moveNew() throws AnalyzerException {
    final SourceInterpreter i = new SourceInterpreter();
    final Analyzer a = new Analyzer(i);
    a.analyze(className, this);

    final HashMap<AbstractInsnNode, MethodInsnNode> movable = new HashMap<AbstractInsnNode, MethodInsnNode>();

    final Frame[] frames = a.getFrames();
    for (int j = 0; j < methods.size(); j++) {
        final MethodInsnNode mnode = (MethodInsnNode) methods.get(j);
        // require to move NEW instruction
        int n = instructions.indexOf(mnode);
        Frame f = frames[n];//  ww w  . j  a v a2s.  c  o  m
        Type[] args = Type.getArgumentTypes(mnode.desc);

        SourceValue v = (SourceValue) f.getStack(f.getStackSize() - args.length - 1);
        @SuppressWarnings("unchecked")
        Set<AbstractInsnNode> insns = v.insns;
        for (final AbstractInsnNode ins : insns) {
            if (ins.getOpcode() == NEW) {
                movable.put(ins, mnode);
            } else {
                // other known patterns
                int n1 = instructions.indexOf(ins);
                if (ins.getOpcode() == DUP) { // <init> with params
                    AbstractInsnNode ins1 = instructions.get(n1 - 1);
                    if (ins1.getOpcode() == NEW) {
                        movable.put(ins1, mnode);
                    }
                } else if (ins.getOpcode() == SWAP) { // in exception handler
                    AbstractInsnNode ins1 = instructions.get(n1 - 1);
                    AbstractInsnNode ins2 = instructions.get(n1 - 2);
                    if (ins1.getOpcode() == DUP_X1 && ins2.getOpcode() == NEW) {
                        movable.put(ins2, mnode);
                    }
                }
            }
        }
    }

    int updateMaxStack = 0;
    for (final Map.Entry<AbstractInsnNode, MethodInsnNode> e : movable.entrySet()) {
        AbstractInsnNode node1 = e.getKey();
        int n1 = instructions.indexOf(node1);
        AbstractInsnNode node2 = instructions.get(n1 + 1);
        AbstractInsnNode node3 = instructions.get(n1 + 2);
        int producer = node2.getOpcode();

        instructions.remove(node1); // NEW
        boolean requireDup = false;
        if (producer == DUP) {
            instructions.remove(node2); // DUP
            requireDup = true;
        } else if (producer == DUP_X1) {
            instructions.remove(node2); // DUP_X1
            instructions.remove(node3); // SWAP
            requireDup = true;
        }

        MethodInsnNode mnode = (MethodInsnNode) e.getValue();
        AbstractInsnNode nm = mnode;

        int varOffset = stackRecorderVar + 1;
        Type[] args = Type.getArgumentTypes(mnode.desc);

        // optimizations for some common cases
        if (args.length == 0) {
            final InsnList doNew = new InsnList();
            doNew.add(node1); // NEW
            if (requireDup)
                doNew.add(new InsnNode(DUP));
            instructions.insertBefore(nm, doNew);
            nm = doNew.getLast();
            continue;
        }

        if (args.length == 1 && args[0].getSize() == 1) {
            final InsnList doNew = new InsnList();
            doNew.add(node1); // NEW
            if (requireDup) {
                doNew.add(new InsnNode(DUP));
                doNew.add(new InsnNode(DUP2_X1));
                doNew.add(new InsnNode(POP2));
                updateMaxStack = updateMaxStack < 2 ? 2 : updateMaxStack; // a two extra slots for temp values
            } else
                doNew.add(new InsnNode(SWAP));
            instructions.insertBefore(nm, doNew);
            nm = doNew.getLast();
            continue;
        }

        // TODO this one untested!
        if ((args.length == 1 && args[0].getSize() == 2)
                || (args.length == 2 && args[0].getSize() == 1 && args[1].getSize() == 1)) {
            final InsnList doNew = new InsnList();
            doNew.add(node1); // NEW
            if (requireDup) {
                doNew.add(new InsnNode(DUP));
                doNew.add(new InsnNode(DUP2_X2));
                doNew.add(new InsnNode(POP2));
                updateMaxStack = updateMaxStack < 2 ? 2 : updateMaxStack; // a two extra slots for temp values
            } else {
                doNew.add(new InsnNode(DUP_X2));
                doNew.add(new InsnNode(POP));
                updateMaxStack = updateMaxStack < 1 ? 1 : updateMaxStack; // an extra slot for temp value
            }
            instructions.insertBefore(nm, doNew);
            nm = doNew.getLast();
            continue;
        }

        final InsnList doNew = new InsnList();
        // generic code using temporary locals
        // save stack
        for (int j = args.length - 1; j >= 0; j--) {
            Type type = args[j];

            doNew.add(new VarInsnNode(type.getOpcode(ISTORE), varOffset));
            varOffset += type.getSize();
        }
        if (varOffset > maxLocals) {
            maxLocals = varOffset;
        }

        doNew.add(node1); // NEW

        if (requireDup)
            doNew.add(new InsnNode(DUP));

        // restore stack
        for (int j = 0; j < args.length; j++) {
            Type type = args[j];
            varOffset -= type.getSize();

            doNew.add(new VarInsnNode(type.getOpcode(ILOAD), varOffset));

            // clean up store to avoid memory leak?
            if (type.getSort() == Type.OBJECT || type.getSort() == Type.ARRAY) {
                updateMaxStack = updateMaxStack < 1 ? 1 : updateMaxStack; // an extra slot for ACONST_NULL

                doNew.add(new InsnNode(ACONST_NULL));

                doNew.add(new VarInsnNode(type.getOpcode(ISTORE), varOffset));
            }
        }
        instructions.insertBefore(nm, doNew);
        nm = doNew.getLast();
    }

    maxStack += updateMaxStack;
}

From source file:org.blockartistry.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformEntityRenderer(final byte[] classBytes) {
    final String names[] = { "func_78484_h", "addRainParticles" };
    final String targetName = "addRainParticles";

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);/*from   ww w  . j  ava  2 s.  c  om*/

    for (final MethodNode m : cn.methods) {
        if (isOneOf(m.name, names)) {
            logger.debug("Hooking " + m.name);
            final InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            final String sig = "(Lnet/minecraft/client/renderer/EntityRenderer;)V";
            list.add(new MethodInsnNode(INVOKESTATIC,
                    "org/blockartistry/DynSurround/client/weather/RenderWeather", targetName, sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
        }
    }

    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

From source file:org.blockartistry.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformWorldServer(final byte[] classBytes) {
    final String names[] = { "func_73051_P", "resetRainAndThunder" };
    final String targetName = "resetRainAndThunder";

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);/*from  w w  w . j a  va  2s  .  c  o  m*/

    for (final MethodNode m : cn.methods) {
        if (isOneOf(m.name, names)) {
            logger.debug("Hooking " + m.name);
            InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            final String sig = "(Lnet/minecraft/world/WorldServer;)V";
            list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/DynSurround/server/PlayerSleepHandler",
                    targetName, sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
            break;
        }
    }

    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

From source file:org.blockartistry.mod.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformEntityRenderer(final byte[] classBytes) {
    final String names[];

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_78474_d", "func_78484_h" };
    else//from  w  w w  .j a  v  a  2 s.  co  m
        names = new String[] { "renderRainSnow", "addRainParticles" };

    final String targetName[] = new String[] { "renderRainSnow", "addRainParticles" };

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);

    for (final MethodNode m : cn.methods) {
        if (m.name.equals(names[0])) {
            logger.debug("Hooking " + names[0]);
            final InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            list.add(new VarInsnNode(FLOAD, 1));
            final String sig = "(Lnet/minecraft/client/renderer/EntityRenderer;F)V";
            list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/client/RenderWeather",
                    targetName[0], sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
        } else if (m.name.equals(names[1])) {
            logger.debug("Hooking " + names[1]);
            final InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            final String sig = "(Lnet/minecraft/client/renderer/EntityRenderer;)V";
            list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/client/RenderWeather",
                    targetName[1], sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
        }
    }

    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

From source file:org.blockartistry.mod.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformWorldServer(final byte[] classBytes) {
    final String names[];

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_73051_P" };
    else// www. j  av a  2s  . co m
        names = new String[] { "resetRainAndThunder" };

    final String targetName[] = new String[] { "resetRainAndThunder" };

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);

    for (final MethodNode m : cn.methods) {
        if (m.name.equals(names[0])) {
            logger.debug("Hooking " + names[0]);
            InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 0));
            final String sig = "(Lnet/minecraft/world/WorldServer;)V";
            list.add(new MethodInsnNode(INVOKESTATIC,
                    "org/blockartistry/mod/DynSurround/server/PlayerSleepHandler", targetName[0], sig, false));
            list.add(new InsnNode(RETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
            break;
        }
    }

    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

From source file:org.blockartistry.mod.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformWorld(final byte[] classBytes) {
    final String names[];

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "updateWeatherBody", "func_72896_J", "func_72911_I" };
    else/*from www.j ava 2  s  .c  om*/
        names = new String[] { "updateWeatherBody", "isRaining", "isThundering" };

    final String targetName[] = new String[] { "updateWeatherBody", "isRaining", "isThundering" };

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);

    for (final MethodNode m : cn.methods) {
        int idx = -1;
        if (m.name.equals(names[0]))
            idx = 0;
        else if (m.name.equals(names[1]))
            idx = 1;
        else if (m.name.equals(names[2]))
            idx = 2;
        else
            continue;

        logger.debug("Hooking " + names[idx]);
        InsnList list = new InsnList();
        list.add(new VarInsnNode(ALOAD, 0));
        final String sig;
        if (idx == 0)
            sig = "(Lnet/minecraft/world/World;)V";
        else
            sig = "(Lnet/minecraft/world/World;)Z";

        list.add(new MethodInsnNode(INVOKESTATIC, "org/blockartistry/mod/DynSurround/server/WorldHandler",
                targetName[idx], sig, false));

        if (idx == 0)
            list.add(new InsnNode(RETURN));
        else
            list.add(new InsnNode(IRETURN));
        m.instructions.insertBefore(m.instructions.getFirst(), list);
    }

    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

From source file:org.blockartistry.mod.DynSurround.asm.Transformer.java

License:MIT License

private byte[] transformSoundManager(final byte[] classBytes) {
    final String names[];

    if (TransformLoader.runtimeDeobEnabled)
        names = new String[] { "func_188770_e" };
    else//from  ww w.  ja v  a2 s .co m
        names = new String[] { "getClampedVolume" };

    final String targetName[] = new String[] { "getClampedVolume" };

    final ClassReader cr = new ClassReader(classBytes);
    final ClassNode cn = new ClassNode(ASM5);
    cr.accept(cn, 0);

    for (final MethodNode m : cn.methods) {
        if (m.name.equals(names[0])) {
            logger.debug("Hooking " + names[0]);
            final InsnList list = new InsnList();
            list.add(new VarInsnNode(ALOAD, 1));
            final String sig = "(Lnet/minecraft/client/audio/ISound;)F";
            list.add(new MethodInsnNode(INVOKESTATIC,
                    "org/blockartistry/mod/DynSurround/client/sound/SoundManager", targetName[0], sig, false));
            list.add(new InsnNode(FRETURN));
            m.instructions.insertBefore(m.instructions.getFirst(), list);
            break;
        }
    }

    final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    cn.accept(cw);
    return cw.toByteArray();
}

From source file:org.brutusin.instrumentation.Instrumentator.java

License:Apache License

private void addTraceStart() {
    InsnList il = new InsnList();
    int methodParametersIndex = addMethodParametersVariable(il);
    addGetMethodInvocation(il);//from   www .j  a  v  a2s .co  m
    addStoreMethod(il);
    addGetCallback(il);

    il.add(new VarInsnNode(Opcodes.ALOAD, this.methodVarIndex));
    il.add(new VarInsnNode(Opcodes.ALOAD, methodParametersIndex));
    il.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "org/brutusin/instrumentation/Callback", "onStart",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/String;", false));

    this.executionIdIndex = getFistAvailablePosition();
    il.add(new VarInsnNode(Opcodes.ASTORE, this.executionIdIndex));
    this.mn.maxLocals++;
    this.startNode = new LabelNode();
    this.mn.instructions.insert(startNode);
    this.mn.instructions.insert(il);
}

From source file:org.brutusin.instrumentation.Instrumentator.java

License:Apache License

private void addCatchBlock(LabelNode startNode, LabelNode endNode) {

    InsnList il = new InsnList();
    LabelNode handlerNode = new LabelNode();
    il.add(handlerNode);// w w w.j  av  a2  s.c  om

    int exceptionVariablePosition = getFistAvailablePosition();
    il.add(new VarInsnNode(Opcodes.ASTORE, exceptionVariablePosition));
    this.methodOffset++; // Actualizamos el offset
    addGetCallback(il);
    il.add(new VarInsnNode(Opcodes.ALOAD, this.methodVarIndex));
    il.add(new VarInsnNode(Opcodes.ALOAD, exceptionVariablePosition));
    il.add(new VarInsnNode(Opcodes.ALOAD, this.executionIdIndex));
    il.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "org/brutusin/instrumentation/Callback",
            "onThrowableUncatched", "(Ljava/lang/Object;Ljava/lang/Throwable;Ljava/lang/String;)V", false));

    il.add(new VarInsnNode(Opcodes.ALOAD, exceptionVariablePosition));
    il.add(new InsnNode(Opcodes.ATHROW));

    TryCatchBlockNode blockNode = new TryCatchBlockNode(startNode, endNode, handlerNode, null);

    this.mn.tryCatchBlocks.add(blockNode);
    this.mn.instructions.add(il);
}

From source file:org.brutusin.instrumentation.Instrumentator.java

License:Apache License

private InsnList getVoidReturnTraceInstructions() {
    InsnList il = new InsnList();
    addGetCallback(il);/*from www. j a v  a 2  s  .  c  o  m*/
    il.add(new VarInsnNode(Opcodes.ALOAD, this.methodVarIndex));
    il.add(new VarInsnNode(Opcodes.ALOAD, this.executionIdIndex));
    il.add(new MethodInsnNode(Opcodes.INVOKEVIRTUAL, "org/brutusin/instrumentation/Callback", "onVoidFinish",
            "(Ljava/lang/Object;Ljava/lang/String;)V", false));

    return il;
}