Example usage for org.objectweb.asm.tree AbstractInsnNode getOpcode

List of usage examples for org.objectweb.asm.tree AbstractInsnNode getOpcode

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Introduction

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

Prototype

public int getOpcode()

Source Link

Document

Returns the opcode of this instruction.

Usage

From source file:vazkii.quark.base.asm.ClassTransformer.java

License:Creative Commons License

private static byte[] transformEntityBoat(byte[] basicClass) {
    log("Transforming EntityBoat");
    MethodSignature sig1 = new MethodSignature("attackEntityFrom", "func_70097_a", "a",
            "(Lnet/minecraft/util/DamageSource;F)Z");
    MethodSignature sig2 = new MethodSignature("onUpdate", "func_70071_h_", "B_", "()V");

    byte[] transClass = transform(basicClass, Pair.of(sig1, combine((AbstractInsnNode node) -> { // Filter
        return node.getOpcode() == Opcodes.POP;
    }, (MethodNode method, AbstractInsnNode node) -> { // Action
        InsnList newInstructions = new InsnList();

        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 0));
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, ASM_HOOKS, "dropBoatBanner",
                "(Lnet/minecraft/entity/item/EntityBoat;)V"));

        method.instructions.insertBefore(node, newInstructions);
        return true;
    })));//from   ww w .ja v a 2 s  . co  m

    transClass = transform(transClass, Pair.of(sig2, combine((AbstractInsnNode node) -> { // Filter
        return true;
    }, (MethodNode method, AbstractInsnNode node) -> { // Action
        InsnList newInstructions = new InsnList();

        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 0));
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, ASM_HOOKS, "onBoatUpdate",
                "(Lnet/minecraft/entity/item/EntityBoat;)V"));

        method.instructions.insertBefore(node, newInstructions);
        return true;
    })));

    return transClass;
}

From source file:vazkii.quark.base.asm.ClassTransformer.java

License:Creative Commons License

private static byte[] transformRenderBoat(byte[] basicClass) {
    log("Transforming RenderBoat");
    MethodSignature sig = new MethodSignature("doRender", "func_188300_b", "b",
            "(Lnet/minecraft/entity/item/EntityBoat;DDDFF)V");

    return transform(basicClass, Pair.of(sig, combine((AbstractInsnNode node) -> { // Filter
        return (node.getOpcode() == Opcodes.INVOKEVIRTUAL || node.getOpcode() == Opcodes.INVOKEINTERFACE)
                && checkDesc(((MethodInsnNode) node).desc, "(Lnet/minecraft/entity/Entity;FFFFFF)V");
    }, (MethodNode method, AbstractInsnNode node) -> { // Action
        InsnList newInstructions = new InsnList();

        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 1));
        newInstructions.add(new VarInsnNode(Opcodes.FLOAD, 9));
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, ASM_HOOKS, "renderBannerOnBoat",
                "(Lnet/minecraft/entity/item/EntityBoat;F)V"));

        method.instructions.insert(node, newInstructions);
        return true;
    })));//from  ww  w.  j  ava2s.  c o m
}

From source file:vazkii.quark.base.asm.ClassTransformer.java

License:Creative Commons License

private static byte[] transformBlockPistonBase(byte[] basicClass) {
    log("Transforming BlockPistonBase");
    MethodSignature sig1 = new MethodSignature("doMove", "func_176319_a", "a",
            "(Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/EnumFacing;Z)Z");
    MethodSignature sig2 = new MethodSignature("canPush", "func_185646_a", "a",
            "(Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/EnumFacing;ZLnet/minecraft/util/EnumFacing;)Z");

    byte[] transClass = transform(basicClass, Pair.of(sig1, combine((AbstractInsnNode node) -> { // Filter
        return node.getOpcode() == Opcodes.ASTORE && ((VarInsnNode) node).var == 11;
    }, (MethodNode method, AbstractInsnNode node) -> { // Action
        InsnList newInstructions = new InsnList();

        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 1));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 2));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 6));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 8));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 11));
        newInstructions.add(new VarInsnNode(Opcodes.ILOAD, 4));
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, ASM_HOOKS, "breakStuffWithSpikes",
                "(Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Ljava/util/List;Ljava/util/List;Lnet/minecraft/util/EnumFacing;Z)Z"));

        // recalculate the list and array sizes
        LabelNode label = new LabelNode();
        newInstructions.add(new JumpInsnNode(Opcodes.IFEQ, label));

        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 6));
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE, "java/util/List", "size", "()I"));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 8));
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKEINTERFACE, "java/util/List", "size", "()I"));
        newInstructions.add(new InsnNode(Opcodes.IADD));
        newInstructions.add(new VarInsnNode(Opcodes.ISTORE, 9));
        newInstructions.add(new VarInsnNode(Opcodes.ILOAD, 9));

        AbstractInsnNode newNode = node.getPrevious();
        while (true) {
            if (newNode.getOpcode() == Opcodes.ANEWARRAY) {
                newInstructions.add(new TypeInsnNode(Opcodes.ANEWARRAY, ((TypeInsnNode) newNode).desc));
                break;
            }/*  ww w. ja v a 2s  .c o m*/
            newNode = newNode.getPrevious();
        }

        newInstructions.add(new VarInsnNode(Opcodes.ASTORE, 10));
        newInstructions.add(label);

        method.instructions.insert(node, newInstructions);
        return true;
    })));

    transClass = transform(transClass, Pair.of(sig2, combine((AbstractInsnNode node) -> { // Filter
        return node.getOpcode() == Opcodes.INVOKEVIRTUAL
                && ((MethodInsnNode) node).name.equals("hasTileEntity");
    }, (MethodNode method, AbstractInsnNode node) -> { // Action
        InsnList newInstructions = new InsnList();

        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 0));
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, ASM_HOOKS, "shouldPistonMoveTE",
                "(ZLnet/minecraft/block/state/IBlockState;)Z"));

        method.instructions.insert(node, newInstructions);
        return true;
    })));

    return transClass;
}

From source file:vazkii.quark.base.asm.ClassTransformer.java

License:Creative Commons License

private static byte[] transformTransferStackInSlot(byte[] basicClass, int min, int max, String hook) {
    MethodSignature sig = new MethodSignature("transferStackInSlot", "func_82846_b", "b",
            "(Lnet/minecraft/entity/player/EntityPlayer;I)Lnet/minecraft/item/ItemStack;");

    bipushCount = 0;/* www .j a  v  a  2  s  .  co  m*/
    return transform(basicClass, Pair.of(sig, combine((AbstractInsnNode node) -> { // Filte
        return node.getOpcode() == Opcodes.BIPUSH;
    }, (MethodNode method, AbstractInsnNode node) -> { // Action
        InsnList newInstructions = new InsnList();
        bipushCount++;

        if (bipushCount != min && bipushCount != max)
            return false;

        log("Adding invokestatic to " + ((IntInsnNode) node).operand + "/" + bipushCount);
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, ASM_HOOKS, hook, "(I)I"));

        method.instructions.insert(node, newInstructions);
        return bipushCount == max;
    })));
}

From source file:vazkii.quark.base.asm.ClassTransformer.java

License:Creative Commons License

private static byte[] transformTileEntityPiston(byte[] basicClass) {
    log("Transforming TileEntityPiston");
    MethodSignature sig1 = new MethodSignature("clearPistonTileEntity", "func_145866_f", "j", "()V");
    MethodSignature sig2 = new MethodSignature("update", "func_73660_a", "e", "()V");

    MethodAction action = combine((AbstractInsnNode node) -> { // Filter
        return node.getOpcode() == Opcodes.INVOKEVIRTUAL && checkDesc(((MethodInsnNode) node).desc,
                "(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/state/IBlockState;I)Z");
    }, (MethodNode method, AbstractInsnNode node) -> { // Action
        InsnList newInstructions = new InsnList();

        newInstructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, ASM_HOOKS, "setPistonBlock",
                "(Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/state/IBlockState;I)Z"));

        method.instructions.insert(node, newInstructions);
        method.instructions.remove(node);

        return true;
    });//from w w w  .j  av a2s.  co  m

    byte[] transClass = transform(basicClass, Pair.of(sig1, action));
    return transform(transClass, Pair.of(sig2, action));
}

From source file:vazkii.quark.base.asm.ClassTransformer.java

License:Creative Commons License

private static byte[] transformBlockModelRenderer(byte[] basicClass) {
    log("Transforming BlockModelRenderer");
    MethodSignature sig1 = new MethodSignature("renderQuadsFlat", "func_187496_a", "a",
            "(Lnet/minecraft/world/IBlockAccess;Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/util/math/BlockPos;IZLnet/minecraft/client/renderer/BufferBuilder;Ljava/util/List;Ljava/util/BitSet;)V");

    if (hasOptifine(sig1.toString()))
        return basicClass;

    return transform(basicClass, Pair.of(sig1, combine((AbstractInsnNode node) -> { // Filter
        return node.getOpcode() == Opcodes.INVOKEVIRTUAL && checkDesc(((MethodInsnNode) node).desc, "(DDD)V");
    }, (MethodNode method, AbstractInsnNode node) -> { // Action
        InsnList newInstructions = new InsnList();

        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 1));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 2));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 3));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 6));
        newInstructions.add(new VarInsnNode(Opcodes.ALOAD, 18));
        newInstructions.add(new VarInsnNode(Opcodes.ILOAD, 4));
        newInstructions.add(new MethodInsnNode(Opcodes.INVOKESTATIC, ASM_HOOKS, "putColorsFlat",
                "(Lnet/minecraft/world/IBlockAccess;Lnet/minecraft/block/state/IBlockState;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/client/renderer/BufferBuilder;Lnet/minecraft/client/renderer/block/model/BakedQuad;I)V"));

        method.instructions.insertBefore(node, newInstructions);
        return true;
    })));/*from  w w w  .  jav  a2 s.com*/
}