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

Example 1 with FilledNewArrayNode

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

the class ReSugarCode method processNewArray.

/**
	 * Replace new array and sequence of array-put to new filled-array instruction.
	 */
private static InsnNode processNewArray(MethodNode mth, List<InsnNode> instructions, int i, InstructionRemover remover) {
    NewArrayNode newArrayInsn = (NewArrayNode) instructions.get(i);
    InsnArg arg = newArrayInsn.getArg(0);
    if (!arg.isLiteral()) {
        return null;
    }
    int len = (int) ((LiteralArg) arg).getLiteral();
    int size = instructions.size();
    if (len <= 0 || i + len >= size || instructions.get(i + len).getType() != InsnType.APUT) {
        return null;
    }
    ArgType arrType = newArrayInsn.getArrayType();
    InsnNode filledArr = new FilledNewArrayNode(arrType.getArrayElement(), len);
    filledArr.setResult(newArrayInsn.getResult());
    for (int j = 0; j < len; j++) {
        InsnNode put = instructions.get(i + 1 + j);
        if (put.getType() != InsnType.APUT) {
            LOG.debug("Not a APUT in expected new filled array: {}, method: {}", put, mth);
            return null;
        }
        filledArr.addArg(put.getArg(2));
        remover.add(put);
    }
    return filledArr;
}

Example 2 with FilledNewArrayNode

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

the class ModVisitor method makeFilledArrayInsn.

private static InsnNode makeFilledArrayInsn(MethodNode mth, NewArrayNode newArrayNode, FillArrayInsn insn) {
    ArgType insnArrayType = newArrayNode.getArrayType();
    ArgType insnElementType = insnArrayType.getArrayElement();
    ArgType elType = insn.getElementType();
    if (!elType.isTypeKnown() && insnElementType.isPrimitive() && elType.contains(insnElementType.getPrimitiveType())) {
        elType = insnElementType;
    }
    if (!elType.equals(insnElementType) && !insnArrayType.equals(ArgType.OBJECT)) {
        mth.addWarn("Incorrect type for fill-array insn " + InsnUtils.formatOffset(insn.getOffset()) + ", element type: " + elType + ", insn element type: " + insnElementType);
    }
    if (!elType.isTypeKnown()) {
        LOG.warn("Unknown array element type: {} in mth: {}", elType, mth);
        elType = insnElementType.isTypeKnown() ? insnElementType : elType.selectFirst();
        if (elType == null) {
            throw new JadxRuntimeException("Null array element type");
        }
    }
    List<LiteralArg> list = insn.getLiteralArgs(elType);
    InsnNode filledArr = new FilledNewArrayNode(elType, list.size());
    filledArr.setResult(newArrayNode.getResult());
    for (LiteralArg arg : list) {
        FieldNode f = mth.getParentClass().getConstFieldByLiteralArg(arg);
        if (f != null) {
            InsnNode fGet = new IndexInsnNode(InsnType.SGET, f.getFieldInfo(), 0);
            filledArr.addArg(InsnArg.wrapArg(fGet));
            f.addUseIn(mth);
        } else {
            filledArr.addArg(arg);
        }
    }
    return filledArr;
}

Example 3 with FilledNewArrayNode

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

the class ModVisitor method makeFilledArrayInsn.

private static InsnNode makeFilledArrayInsn(MethodNode mth, FillArrayNode insn) {
    ArgType insnArrayType = insn.getResult().getType();
    ArgType insnElementType = insnArrayType.getArrayElement();
    ArgType elType = insn.getElementType();
    if (!elType.isTypeKnown() && insnElementType.isPrimitive()) {
        if (elType.contains(insnElementType.getPrimitiveType())) {
            elType = insnElementType;
        }
    }
    if (!elType.equals(insnElementType) && !insnArrayType.equals(ArgType.OBJECT)) {
        ErrorsCounter.methodError(mth, "Incorrect type for fill-array insn " + InsnUtils.formatOffset(insn.getOffset()) + ", element type: " + elType + ", insn element type: " + insnElementType);
    }
    if (!elType.isTypeKnown()) {
        LOG.warn("Unknown array element type: {} in mth: {}", elType, mth);
        elType = insnElementType.isTypeKnown() ? insnElementType : elType.selectFirst();
        if (elType == null) {
            throw new JadxRuntimeException("Null array element type");
        }
    }
    insn.mergeElementType(mth.dex(), elType);
    elType = insn.getElementType();
    List<LiteralArg> list = insn.getLiteralArgs();
    InsnNode filledArr = new FilledNewArrayNode(elType, list.size());
    filledArr.setResult(insn.getResult());
    for (LiteralArg arg : list) {
        FieldNode f = mth.getParentClass().getConstFieldByLiteralArg(arg);
        if (f != null) {
            InsnNode fGet = new IndexInsnNode(InsnType.SGET, f.getFieldInfo(), 0);
            filledArr.addArg(InsnArg.wrapArg(fGet));
        } else {
            filledArr.addArg(arg);
        }
    }
    return filledArr;
}

Example 4 with FilledNewArrayNode

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

the class SimplifyVisitor method simplifyStringConstructor.

private InsnNode simplifyStringConstructor(MethodNode mth, ConstructorInsn insn) {
    if (insn.getCallMth().getDeclClass().getType().equals(ArgType.STRING) && insn.getArgsCount() != 0 && insn.getArg(0).isInsnWrap()) {
        InsnNode arrInsn = ((InsnWrapArg) insn.getArg(0)).getWrapInsn();
        if (arrInsn.getType() == InsnType.FILLED_NEW_ARRAY && arrInsn.getArgsCount() != 0) {
            ArgType elemType = ((FilledNewArrayNode) arrInsn).getElemType();
            if (elemType == ArgType.BYTE || elemType == ArgType.CHAR) {
                int printable = 0;
                byte[] arr = new byte[arrInsn.getArgsCount()];
                for (int i = 0; i < arr.length; i++) {
                    InsnArg arrArg = arrInsn.getArg(i);
                    if (!arrArg.isLiteral()) {
                        return null;
                    }
                    arr[i] = (byte) ((LiteralArg) arrArg).getLiteral();
                    if (NameMapper.isPrintableChar((char) arr[i])) {
                        printable++;
                    }
                }
                if (printable >= arr.length - printable) {
                    InsnNode constStr = new ConstStringNode(new String(arr));
                    if (insn.getArgsCount() == 1) {
                        constStr.setResult(insn.getResult());
                        constStr.copyAttributesFrom(insn);
                        InsnRemover.unbindArgUsage(mth, insn.getArg(0));
                        return constStr;
                    } else {
                        InvokeNode in = new InvokeNode(stringGetBytesMth, InvokeType.VIRTUAL, 1);
                        in.addArg(InsnArg.wrapArg(constStr));
                        InsnArg bytesArg = InsnArg.wrapArg(in);
                        bytesArg.setType(stringGetBytesMth.getReturnType());
                        insn.setArg(0, bytesArg);
                        return null;
                    }
                }
            }
        }
    }
    return null;
}

Example 5 with FilledNewArrayNode

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

the class ProcessInstructionsVisitor method initJumps.

private static void initJumps(MethodNode mth, InsnNode[] insnByOffset) {
    for (int offset = 0; offset < insnByOffset.length; offset++) {
        InsnNode insn = insnByOffset[offset];
        if (insn == null) {
            continue;
        }
        switch(insn.getType()) {
            case SWITCH:
                SwitchInsn sw = (SwitchInsn) insn;
                if (sw.needData()) {
                    attachSwitchData(insnByOffset, offset, sw);
                }
                int defCaseOffset = sw.getDefaultCaseOffset();
                if (defCaseOffset != -1) {
                    addJump(mth, insnByOffset, offset, defCaseOffset);
                }
                for (int target : sw.getTargets()) {
                    addJump(mth, insnByOffset, offset, target);
                }
                break;
            case IF:
                int next = getNextInsnOffset(insnByOffset, offset);
                if (next != -1) {
                    addJump(mth, insnByOffset, offset, next);
                }
                addJump(mth, insnByOffset, offset, ((IfNode) insn).getTarget());
                break;
            case GOTO:
                addJump(mth, insnByOffset, offset, ((GotoNode) insn).getTarget());
                break;
            case INVOKE:
                if (insn.getResult() == null) {
                    ArgType retType = ((BaseInvokeNode) insn).getCallMth().getReturnType();
                    mergeMoveResult(insnByOffset, offset, insn, retType);
                }
                break;
            case STR_CONCAT:
                // invoke-custom with string concatenation translated directly to STR_CONCAT, merge next move-result
                if (insn.getResult() == null) {
                    mergeMoveResult(insnByOffset, offset, insn, ArgType.STRING);
                }
                break;
            case FILLED_NEW_ARRAY:
                ArgType arrType = ((FilledNewArrayNode) insn).getArrayType();
                mergeMoveResult(insnByOffset, offset, insn, arrType);
                break;
            case FILL_ARRAY:
                FillArrayInsn fillArrayInsn = (FillArrayInsn) insn;
                int target = fillArrayInsn.getTarget();
                InsnNode arrDataInsn = getInsnAtOffset(insnByOffset, target);
                if (arrDataInsn != null && arrDataInsn.getType() == InsnType.FILL_ARRAY_DATA) {
                    fillArrayInsn.setArrayData((FillArrayData) arrDataInsn);
                    removeInsn(insnByOffset, arrDataInsn);
                } else {
                    throw new JadxRuntimeException("Payload for fill-array not found at " + InsnUtils.formatOffset(target));
                }
                break;
            default:
                break;
        }
    }
}