Example usage for org.objectweb.asm Opcodes GETFIELD

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

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Introduction

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

Prototype

int GETFIELD

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

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Usage

From source file:com.yahoo.yqlplus.engine.internal.bytecode.InstanceFieldExpression.java

@Override
public void generate(CodeEmitter code) {
    target.generate(code);//from   w w  w. j  a va 2  s  .  c  o  m
    code.getMethodVisitor().visitFieldInsn(Opcodes.GETFIELD, ownerName, name,
            getType().getJVMType().getDescriptor());
}

From source file:de.sanandrew.core.manpack.transformer.TransformBadPotionsATN.java

License:Creative Commons License

private byte[] transformPotion(byte[] bytes) {
    ClassNode cn = ASMHelper.createClassNode(bytes);

    if (ASMHelper.hasClassMethodName(cn, ASMNames.M_isBadEffect)) {
        return bytes;
    }// www .j a  va  2  s  .  co  m

    MethodNode method = new MethodNode(Opcodes.ACC_PUBLIC, ASMNames.M_isBadEffect, "()Z", null, null);
    method.visitCode();
    Label l0 = new Label();
    method.visitLabel(l0);
    method.visitVarInsn(Opcodes.ALOAD, 0);
    method.visitFieldInsn(Opcodes.GETFIELD, "net/minecraft/potion/Potion", ASMNames.F_isBadEffect, "Z");
    method.visitInsn(Opcodes.IRETURN);
    Label l1 = new Label();
    method.visitLabel(l1);
    method.visitLocalVariable("this", "Lnet/minecraft/potion/Potion;", null, l0, l1, 0);
    method.visitMaxs(0, 0);
    method.visitEnd();

    cn.methods.add(method);

    bytes = ASMHelper.createBytes(cn, ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);

    return bytes;
}

From source file:de.sanandrew.core.manpack.transformer.TransformELBAttackingPlayer.java

License:Creative Commons License

private static byte[] transformAttackingPlayer(byte[] bytes) {
    ClassNode clazz = ASMHelper.createClassNode(bytes);

    /** ADD GETTER FOR ATTACKING PLAYER **/
    {//from w w  w.jav a  2  s .  com
        MethodNode method = new MethodNode(Opcodes.ACC_PUBLIC, "_SAP_getAttackingPlayer",
                "()Lnet/minecraft/entity/player/EntityPlayer;", null, null);
        method.visitCode();
        Label l0 = new Label();
        method.visitLabel(l0);
        method.visitVarInsn(Opcodes.ALOAD, 0);
        method.visitFieldInsn(Opcodes.GETFIELD, "net/minecraft/entity/EntityLivingBase",
                ASMNames.F_attackingPlayer, "Lnet/minecraft/entity/player/EntityPlayer;");
        method.visitInsn(Opcodes.ARETURN);
        Label l1 = new Label();
        method.visitLabel(l1);
        method.visitLocalVariable("this", "Lnet/minecraft/entity/EntityLivingBase;", null, l0, l1, 0);
        method.visitMaxs(0, 0);
        method.visitEnd();
        clazz.methods.add(method);
    }

    /** ADD SETTER FOR ATTACKING PLAYER **/
    {
        MethodNode method = new MethodNode(Opcodes.ACC_PUBLIC, "_SAP_setAttackingPlayer",
                "(Lnet/minecraft/entity/player/EntityPlayer;)V", null, null);
        method.visitCode();
        Label l0 = new Label();
        method.visitLabel(l0);
        method.visitVarInsn(Opcodes.ALOAD, 0);
        method.visitVarInsn(Opcodes.ALOAD, 1);
        method.visitFieldInsn(Opcodes.PUTFIELD, "net/minecraft/entity/EntityLivingBase",
                ASMNames.F_attackingPlayer, "Lnet/minecraft/entity/player/EntityPlayer;");
        Label l1 = new Label();
        method.visitLabel(l1);
        method.visitInsn(Opcodes.RETURN);
        Label l2 = new Label();
        method.visitLabel(l2);
        method.visitLocalVariable("this", "Lnet/minecraft/entity/EntityLivingBase;", null, l0, l2, 0);
        method.visitLocalVariable("player", "Lnet/minecraft/entity/player/EntityPlayer;", null, l0, l2, 1);
        method.visitMaxs(0, 0);
        method.visitEnd();
        clazz.methods.add(method);
    }

    /** ADD GETTER FOR RECENTLY HIT **/
    {
        MethodNode method = new MethodNode(Opcodes.ACC_PUBLIC, "_SAP_getRecentlyHit", "()I", null, null);
        method.visitCode();
        Label l0 = new Label();
        method.visitLabel(l0);
        method.visitVarInsn(Opcodes.ALOAD, 0);
        method.visitFieldInsn(Opcodes.GETFIELD, "net/minecraft/entity/EntityLivingBase", ASMNames.F_recentlyHit,
                "I");
        method.visitInsn(Opcodes.IRETURN);
        Label l1 = new Label();
        method.visitLabel(l1);
        method.visitLocalVariable("this", "Lnet/minecraft/entity/EntityLivingBase;", null, l0, l1, 0);
        method.visitMaxs(0, 0);
        method.visitEnd();
        clazz.methods.add(method);
    }

    /** ADD SETTER FOR RECENTLY HIT **/
    {
        MethodNode method = new MethodNode(Opcodes.ACC_PUBLIC, "_SAP_setRecentlyHit", "(I)V", null, null);
        method.visitCode();
        Label l0 = new Label();
        method.visitLabel(l0);
        method.visitVarInsn(Opcodes.ALOAD, 0);
        method.visitVarInsn(Opcodes.ILOAD, 1);
        method.visitFieldInsn(Opcodes.PUTFIELD, "net/minecraft/entity/EntityLivingBase", ASMNames.F_recentlyHit,
                "I");
        Label l1 = new Label();
        method.visitLabel(l1);
        method.visitInsn(Opcodes.RETURN);
        Label l2 = new Label();
        method.visitLabel(l2);
        method.visitLocalVariable("this", "Lnet/minecraft/entity/EntityLivingBase;", null, l0, l2, 0);
        method.visitLocalVariable("hit", "I", null, l0, l2, 1);
        method.visitMaxs(0, 0);
        method.visitEnd();
        clazz.methods.add(method);
    }

    bytes = ASMHelper.createBytes(clazz, /*ClassWriter.COMPUTE_FRAMES |*/ ClassWriter.COMPUTE_MAXS);

    return bytes;
}

From source file:de.sanandrew.core.manpack.transformer.TransformEnderman.java

License:Creative Commons License

private static byte[] transformEnderman(byte[] bytes) {
    ClassNode clazz = ASMHelper.createClassNode(bytes);
    MethodNode method = ASMHelper.findMethod(clazz, ASMNames.MD_ENDERMAN_SHOULD_ATTACK_PLAYER);

    InsnList needle = new InsnList();
    needle.add(new VarInsnNode(Opcodes.ALOAD, 1));
    needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_PLAYER_INVENTORY));
    needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_INVPLAYER_ARMOR_INVENTORY));
    needle.add(new InsnNode(Opcodes.ICONST_3));
    needle.add(new InsnNode(Opcodes.AALOAD));
    needle.add(new VarInsnNode(Opcodes.ASTORE, 2));

    AbstractInsnNode insertPt = ASMHelper.findFirstNodeFromNeedle(method.instructions, needle);

    InsnList newInstr = new InsnList();
    newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETSTATIC, ASMNames.FD_SAPUTILS_EVENT_BUS));
    newInstr.add(new TypeInsnNode(Opcodes.NEW, ASMNames.CL_ENDER_FACING_EVENT));
    newInstr.add(new InsnNode(Opcodes.DUP));
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 1));
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESPECIAL, ASMNames.MD_ENDERFACINGEVENT_INIT, false));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_EVENT_BUS_POST, false));
    LabelNode l1 = new LabelNode();
    newInstr.add(new JumpInsnNode(Opcodes.IFEQ, l1));
    newInstr.add(new InsnNode(Opcodes.ICONST_0));
    newInstr.add(new InsnNode(Opcodes.IRETURN));
    newInstr.add(l1);/*from   w w  w  . j  a  va 2  s  . c  om*/

    method.instructions.insertBefore(insertPt, newInstr);

    return ASMHelper.createBytes(clazz, /*ClassWriter.COMPUTE_FRAMES |*/ ClassWriter.COMPUTE_MAXS);
}

From source file:de.sanandrew.core.manpack.transformer.TransformEntityThrowable.java

License:Creative Commons License

private static byte[] transformLqThrowable(byte[] bytes) {
    ClassNode classNode = ASMHelper.createClassNode(bytes);

    MethodNode method = ASMHelper.getMethodNode(Opcodes.ACC_PUBLIC, ASMNames.MD_SAP_CAN_IMPACT_ON_LIQUID);

    method.visitCode();/*from   ww  w.  ja v a2  s.co m*/
    Label label1 = new Label();
    method.visitLabel(label1);
    method.visitInsn(Opcodes.ICONST_0);
    method.visitInsn(Opcodes.IRETURN);
    Label label2 = new Label();
    method.visitLabel(label2);
    method.visitLocalVariable("this", ASMNames.CL_T_ENTITY_THROWABLE, null, label1, label2, 0);
    method.visitMaxs(0, 0);
    method.visitEnd();
    classNode.methods.add(method);

    method = ASMHelper.findMethod(classNode, ASMNames.MD_THROWABLE_ON_UPDATE);

    InsnList needle = new InsnList();
    needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_THROWABLE_MOTION_Z));
    needle.add(new InsnNode(Opcodes.DADD));
    needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESTATIC, ASMNames.MD_VEC3_CREATE_VECTOR_HELPER, false));
    needle.add(new VarInsnNode(Opcodes.ASTORE, 2));
    needle.add(new LabelNode());
    needle.add(new LineNumberNode(-1, new LabelNode()));
    needle.add(new VarInsnNode(Opcodes.ALOAD, 0));
    needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_THROWABLE_WORLD_OBJ));
    needle.add(new VarInsnNode(Opcodes.ALOAD, 1));
    needle.add(new VarInsnNode(Opcodes.ALOAD, 2));
    needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_WORLD_RAY_TRACE_BLOCKS, false));
    needle.add(new VarInsnNode(Opcodes.ASTORE, -1));

    VarInsnNode insertPoint = (VarInsnNode) ASMHelper.findLastNodeFromNeedle(method.instructions, needle);

    InsnList injectList = new InsnList();
    injectList.add(new LabelNode());
    injectList.add(new VarInsnNode(Opcodes.ALOAD, 0));
    injectList.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_THROWABLE_WORLD_OBJ));
    injectList.add(new VarInsnNode(Opcodes.ALOAD, 1));
    injectList.add(new VarInsnNode(Opcodes.ALOAD, 2));
    injectList.add(new VarInsnNode(Opcodes.ALOAD, 0));
    injectList.add(
            ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_SAP_CAN_IMPACT_ON_LIQUID, false));
    injectList.add(
            ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_WORLD_RAY_TRACE_BLOCKS_Z, false));
    injectList.add(new VarInsnNode(Opcodes.ASTORE, insertPoint.var));

    method.instructions.insert(insertPoint, injectList);

    return ASMHelper.createBytes(classNode, /*ClassWriter.COMPUTE_FRAMES |*/ ClassWriter.COMPUTE_MAXS);
}

From source file:de.sanandrew.core.manpack.transformer.TransformHorseArmor.java

License:Creative Commons License

private static MethodNode injectMethodGetCustomArmorItem() {
    MethodNode method = ASMHelper.getMethodNode(Opcodes.ACC_PRIVATE, ASMNames.MD_SAP_GET_CUSTOM_ARMOR_ITEM);
    method.visitCode();//from w  ww.j  a  v  a  2 s.  c  o  m
    Label l0 = new Label();
    method.visitLabel(l0);
    method.visitVarInsn(Opcodes.ALOAD, 0);
    ASMHelper.visitFieldInsn(method, Opcodes.GETFIELD, ASMNames.FD_HORSE_DATAWATCHER);
    method.visitIntInsn(Opcodes.BIPUSH, 23);
    ASMHelper.visitMethodInsn(method, Opcodes.INVOKEVIRTUAL, ASMNames.MD_DATAWATCHER_GET_OBJ_STACK, false);
    method.visitInsn(Opcodes.ARETURN);
    Label l1 = new Label();
    method.visitLabel(l1);
    method.visitLocalVariable("this", ASMNames.CL_T_ENTITY_HORSE, null, l0, l1, 0);
    method.visitMaxs(2, 1);
    method.visitEnd();

    return method;
}

From source file:de.sanandrew.core.manpack.transformer.TransformHorseArmor.java

License:Creative Commons License

private static MethodNode injectMethodSetCustomArmorItem() {
    MethodNode method = ASMHelper.getMethodNode(Opcodes.ACC_PRIVATE, ASMNames.MD_SAP_SET_CUSTOM_ARMOR_ITEM);
    method.visitCode();/*from w  ww  .  ja  va2  s .  c  o  m*/
    Label l0 = new Label();
    method.visitLabel(l0);
    method.visitVarInsn(Opcodes.ALOAD, 1);
    Label l1 = new Label();
    method.visitJumpInsn(Opcodes.IFNONNULL, l1);
    method.visitTypeInsn(Opcodes.NEW, ASMNames.CL_ITEM_STACK);
    method.visitInsn(Opcodes.DUP);
    ASMHelper.visitFieldInsn(method, Opcodes.GETSTATIC, ASMNames.FD_ITEMS_IRON_SHOVEL);
    method.visitInsn(Opcodes.ICONST_0);
    ASMHelper.visitMethodInsn(method, Opcodes.INVOKESPECIAL, ASMNames.MD_ITEMSTACK_INIT, false);
    method.visitVarInsn(Opcodes.ASTORE, 1);
    method.visitLabel(l1);
    method.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
    method.visitVarInsn(Opcodes.ALOAD, 0);
    ASMHelper.visitFieldInsn(method, Opcodes.GETFIELD, ASMNames.FD_HORSE_DATAWATCHER);
    method.visitIntInsn(Opcodes.BIPUSH, 23);
    method.visitVarInsn(Opcodes.ALOAD, 1);
    ASMHelper.visitMethodInsn(method, Opcodes.INVOKEVIRTUAL, ASMNames.MD_DATAWATCHER_UPDATE_OBJ, false);
    Label l3 = new Label();
    method.visitLabel(l3);
    method.visitInsn(Opcodes.RETURN);
    Label l4 = new Label();
    method.visitLabel(l4);
    method.visitLocalVariable("this", ASMNames.CL_T_ENTITY_HORSE, null, l0, l3, 0);
    method.visitLocalVariable("stack", ASMNames.CL_T_ITEM_STACK, null, l0, l3, 1);
    method.visitMaxs(5, 2);
    method.visitEnd();

    return method;
}

From source file:de.sanandrew.core.manpack.transformer.TransformHorseArmor.java

License:Creative Commons License

private static void transformArmorTexture(MethodNode method) {
    InsnList needle = new InsnList();
    needle.add(new VarInsnNode(Opcodes.ALOAD, 0));
    needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_HORSE_FUNC110241CB, false));
    needle.add(new VarInsnNode(Opcodes.ISTORE, 3));

    AbstractInsnNode node = ASMHelper.findLastNodeFromNeedle(method.instructions, needle);

    InsnList newInstr = new InsnList();
    LabelNode l17 = new LabelNode();
    newInstr.add(l17);/*from  ww  w.ja  v  a2  s . c  om*/
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(
            ASMHelper.getMethodInsnNode(Opcodes.INVOKESPECIAL, ASMNames.MD_SAP_GET_CUSTOM_ARMOR_ITEM, false));
    newInstr.add(new VarInsnNode(Opcodes.ASTORE, 4));
    LabelNode l18 = new LabelNode();
    newInstr.add(l18);
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 4));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_ITEMSTACK_GET_ITEM, false));
    newInstr.add(new TypeInsnNode(Opcodes.INSTANCEOF, ASMNames.CL_ITEM_HORSE_ARMOR));
    LabelNode l19 = new LabelNode();
    newInstr.add(new JumpInsnNode(Opcodes.IFEQ, l19));
    LabelNode l20 = new LabelNode();
    newInstr.add(l20);
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_HORSE_FIELD110280BR));
    newInstr.add(new InsnNode(Opcodes.ICONST_2));
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 4));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_ITEMSTACK_GET_ITEM, false));
    newInstr.add(new TypeInsnNode(Opcodes.CHECKCAST, ASMNames.CL_ITEM_HORSE_ARMOR));
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 4));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_SAP_GET_ARMOR_TEXTURE, false));
    newInstr.add(new InsnNode(Opcodes.AASTORE));
    LabelNode l21 = new LabelNode();
    newInstr.add(l21);
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(new TypeInsnNode(Opcodes.NEW, ASMNames.CL_STRING_BUILDER));
    newInstr.add(new InsnNode(Opcodes.DUP));
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_HORSE_FIELD110286BQ));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESTATIC, ASMNames.MD_STRING_VALUE_OF, false));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESPECIAL, ASMNames.MD_STRINGBUILDER_INIT, false));
    newInstr.add(new LdcInsnNode("cst-"));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_STRINGBUILDER_APPEND, false));
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 4));
    newInstr.add(
            ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_ITEMSTACK_GET_UNLOC_NAME, false));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_STRINGBUILDER_APPEND, false));
    newInstr.add(
            ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_STRINGBUILDER_TO_STRING, false));
    newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.PUTFIELD, ASMNames.FD_HORSE_FIELD110286BQ));
    newInstr.add(new InsnNode(Opcodes.RETURN));
    newInstr.add(l19);

    method.instructions.insert(node, newInstr);
}

From source file:de.sanandrew.core.manpack.transformer.TransformHorseArmor.java

License:Creative Commons License

private static void transformUpdateHorseSlots(MethodNode method) {
    InsnList needle = new InsnList();
    needle.add(new VarInsnNode(Opcodes.ALOAD, 0));
    needle.add(new VarInsnNode(Opcodes.ALOAD, 0));
    needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_HORSE_CHEST));
    needle.add(new InsnNode(Opcodes.ICONST_1));

    AbstractInsnNode pointer = ASMHelper.findFirstNodeFromNeedle(method.instructions, needle);

    InsnList newInstr = new InsnList();
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_HORSE_CHEST));
    newInstr.add(new InsnNode(Opcodes.ICONST_1));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_ANIMALCHEST_GET_STACK_IN_SLOT,
            false));//from w w  w .  j  av  a 2 s.com
    newInstr.add(
            ASMHelper.getMethodInsnNode(Opcodes.INVOKESPECIAL, ASMNames.MD_SAP_SET_CUSTOM_ARMOR_ITEM, false));
    newInstr.add(new LabelNode());

    method.instructions.insertBefore(pointer, newInstr);
}

From source file:de.sanandrew.core.manpack.transformer.TransformHorseArmor.java

License:Creative Commons License

private static void transformEntityInit(MethodNode method) {
    InsnList needle = new InsnList();
    needle.add(new VarInsnNode(Opcodes.ALOAD, 0));
    needle.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_HORSE_DATAWATCHER));
    needle.add(new IntInsnNode(Opcodes.BIPUSH, 22));
    needle.add(new InsnNode(Opcodes.ICONST_0));
    needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESTATIC, ASMNames.MD_INTEGER_VALUE_OF, false));
    needle.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_DATAWATCHER_ADD_OBJECT, false));

    AbstractInsnNode pointer = ASMHelper.findLastNodeFromNeedle(method.instructions, needle);

    InsnList newInstr = new InsnList();
    newInstr.add(new LabelNode());
    newInstr.add(new VarInsnNode(Opcodes.ALOAD, 0));
    newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETFIELD, ASMNames.FD_HORSE_DATAWATCHER));
    newInstr.add(new IntInsnNode(Opcodes.BIPUSH, 23));
    newInstr.add(new TypeInsnNode(Opcodes.NEW, ASMNames.CL_ITEM_STACK));
    newInstr.add(new InsnNode(Opcodes.DUP));
    newInstr.add(ASMHelper.getFieldInsnNode(Opcodes.GETSTATIC, ASMNames.FD_ITEMS_IRON_SHOVEL));
    newInstr.add(new InsnNode(Opcodes.ICONST_0));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKESPECIAL, ASMNames.MD_ITEMSTACK_INIT, false));
    newInstr.add(ASMHelper.getMethodInsnNode(Opcodes.INVOKEVIRTUAL, ASMNames.MD_DATAWATCHER_ADD_OBJECT, false));

    method.instructions.insert(pointer, newInstr);
}