Examples with InsnType jadx.core.dex.instructions.InsnType used on opensource projects

Example 1 with InsnType

use of jadx.core.dex.instructions.InsnType in project jadx by skylot.

the class ModVisitor method removeAssignChain.

/**
	 * Remove instructions on 'move' chain until instruction with type 'insnType'
	 */
private static InsnNode removeAssignChain(InsnNode insn, InstructionRemover remover, InsnType insnType) {
    if (insn == null) {
        return null;
    }
    remover.add(insn);
    InsnType type = insn.getType();
    if (type == insnType) {
        return insn;
    }
    if (type == InsnType.MOVE) {
        RegisterArg arg = (RegisterArg) insn.getArg(0);
        return removeAssignChain(arg.getAssignInsn(), remover, insnType);
    }
    return null;
}

Example 2 with InsnType

use of jadx.core.dex.instructions.InsnType in project jadx by skylot.

the class ConditionGen method isArgWrapNeeded.

private static boolean isArgWrapNeeded(InsnArg arg) {
    if (!arg.isInsnWrap()) {
        return false;
    }
    InsnNode insn = ((InsnWrapArg) arg).getWrapInsn();
    InsnType insnType = insn.getType();
    if (insnType == InsnType.ARITH) {
        switch(((ArithNode) insn).getOp()) {
            case ADD:
            case SUB:
            case MUL:
            case DIV:
            case REM:
                return false;
        }
    } else {
        switch(insnType) {
            case INVOKE:
            case SGET:
            case IGET:
            case AGET:
            case CONST:
            case ARRAY_LENGTH:
                return false;
            default:
                return true;
        }
    }
    return true;
}

Example 3 with InsnType

use of jadx.core.dex.instructions.InsnType in project jadx by skylot.

the class IfCondition method simplifyCmpOp.

private static void simplifyCmpOp(Compare c) {
    if (!c.getA().isInsnWrap()) {
        return;
    }
    if (!c.getB().isLiteral() || ((LiteralArg) c.getB()).getLiteral() != 0) {
        return;
    }
    InsnNode wrapInsn = ((InsnWrapArg) c.getA()).getWrapInsn();
    InsnType type = wrapInsn.getType();
    if (type != InsnType.CMP_L && type != InsnType.CMP_G) {
        return;
    }
    IfNode insn = c.getInsn();
    insn.changeCondition(insn.getOp(), wrapInsn.getArg(0), wrapInsn.getArg(1));
}

Example 4 with InsnType

use of jadx.core.dex.instructions.InsnType in project jadx by skylot.

the class RegionUtils method hasExitEdge.

public static boolean hasExitEdge(IContainer container) {
    if (container instanceof IBlock) {
        InsnNode lastInsn = BlockUtils.getLastInsn((IBlock) container);
        if (lastInsn == null) {
            return false;
        }
        InsnType type = lastInsn.getType();
        return type == InsnType.RETURN || type == InsnType.CONTINUE || type == InsnType.BREAK || type == InsnType.THROW;
    } else if (container instanceof IBranchRegion) {
        for (IContainer br : ((IBranchRegion) container).getBranches()) {
            if (br == null || !hasExitEdge(br)) {
                return false;
            }
        }
        return true;
    } else if (container instanceof IRegion) {
        IRegion region = (IRegion) container;
        List<IContainer> blocks = region.getSubBlocks();
        return !blocks.isEmpty() && hasExitEdge(blocks.get(blocks.size() - 1));
    } else {
        throw new JadxRuntimeException(unknownContainerType(container));
    }
}

Example 5 with InsnType

use of jadx.core.dex.instructions.InsnType in project jadx by skylot.

the class SimplifyVisitor method convertFieldArith.

/**
	 * Convert field arith operation to arith instruction
	 * (IPUT = ARITH (IGET, lit) -> ARITH (fieldArg <op>= lit))
	 */
private static InsnNode convertFieldArith(MethodNode mth, InsnNode insn) {
    InsnArg arg = insn.getArg(0);
    if (!arg.isInsnWrap()) {
        return null;
    }
    InsnNode wrap = ((InsnWrapArg) arg).getWrapInsn();
    InsnType wrapType = wrap.getType();
    if (wrapType != InsnType.ARITH && wrapType != InsnType.STR_CONCAT || !wrap.getArg(0).isInsnWrap()) {
        return null;
    }
    InsnNode get = ((InsnWrapArg) wrap.getArg(0)).getWrapInsn();
    InsnType getType = get.getType();
    if (getType != InsnType.IGET && getType != InsnType.SGET) {
        return null;
    }
    FieldInfo field = (FieldInfo) ((IndexInsnNode) insn).getIndex();
    FieldInfo innerField = (FieldInfo) ((IndexInsnNode) get).getIndex();
    if (!field.equals(innerField)) {
        return null;
    }
    try {
        InsnArg reg = null;
        if (getType == InsnType.IGET) {
            reg = get.getArg(0);
            InsnArg putReg = insn.getArg(1);
            if (!reg.equals(putReg)) {
                return null;
            }
        }
        FieldArg fArg = new FieldArg(field, reg);
        if (reg != null) {
            fArg.setType(get.getArg(0).getType());
        }
        if (wrapType == InsnType.ARITH) {
            ArithNode ar = (ArithNode) wrap;
            return new ArithNode(ar.getOp(), fArg, ar.getArg(1));
        } else {
            int argsCount = wrap.getArgsCount();
            InsnNode concat = new InsnNode(InsnType.STR_CONCAT, argsCount - 1);
            for (int i = 1; i < argsCount; i++) {
                concat.addArg(wrap.getArg(i));
            }
            return new ArithNode(ArithOp.ADD, fArg, InsnArg.wrapArg(concat));
        }
    } catch (Exception e) {
        LOG.debug("Can't convert field arith insn: {}, mth: {}", insn, mth, e);
    }
    return null;
}