Examples with MethodNode jadx.core.dex.nodes.MethodNode used on opensource projects

Example 1 with MethodNode

use of jadx.core.dex.nodes.MethodNode in project jadx by skylot.

the class RenameVisitor method checkMethods.

private void checkMethods(ClassNode cls) {
    Set<String> names = new HashSet<String>();
    for (MethodNode mth : cls.getMethods()) {
        if (mth.contains(AFlag.DONT_GENERATE)) {
            continue;
        }
        MethodInfo methodInfo = mth.getMethodInfo();
        String signature = makeMethodSignature(methodInfo);
        if (!names.add(signature)) {
            methodInfo.setAlias(deobfuscator.makeMethodAlias(mth));
        }
    }
}

Example 2 with MethodNode

use of jadx.core.dex.nodes.MethodNode in project jadx by skylot.

the class ModVisitor method processAnonymousConstructor.

private static void processAnonymousConstructor(MethodNode mth, ConstructorInsn co) {
    MethodInfo callMth = co.getCallMth();
    MethodNode callMthNode = mth.dex().resolveMethod(callMth);
    if (callMthNode == null) {
        return;
    }
    ClassNode classNode = callMthNode.getParentClass();
    ClassInfo classInfo = classNode.getClassInfo();
    ClassNode parentClass = mth.getParentClass();
    if (!classInfo.isInner() || !Character.isDigit(classInfo.getShortName().charAt(0)) || !parentClass.getInnerClasses().contains(classNode)) {
        return;
    }
    if (!classNode.getAccessFlags().isStatic() && (callMth.getArgsCount() == 0 || !callMth.getArgumentsTypes().get(0).equals(parentClass.getClassInfo().getType()))) {
        return;
    }
    // TODO: calculate this constructor and other constructor usage
    Map<InsnArg, FieldNode> argsMap = getArgsToFieldsMapping(callMthNode, co);
    if (argsMap.isEmpty()) {
        return;
    }
    // all checks passed
    classNode.add(AFlag.ANONYMOUS_CLASS);
    callMthNode.add(AFlag.DONT_GENERATE);
    for (Map.Entry<InsnArg, FieldNode> entry : argsMap.entrySet()) {
        FieldNode field = entry.getValue();
        if (field == null) {
            continue;
        }
        InsnArg arg = entry.getKey();
        field.addAttr(new FieldReplaceAttr(arg));
        field.add(AFlag.DONT_GENERATE);
        if (arg.isRegister()) {
            RegisterArg reg = (RegisterArg) arg;
            SSAVar sVar = reg.getSVar();
            if (sVar != null) {
                sVar.add(AFlag.FINAL);
                sVar.add(AFlag.DONT_INLINE);
            }
            reg.add(AFlag.SKIP_ARG);
        }
    }
}

Example 3 with MethodNode

use of jadx.core.dex.nodes.MethodNode in project jadx by skylot.

the class CheckRegions method visit.

@Override
public void visit(MethodNode mth) throws JadxException {
    if (mth.isNoCode() || mth.getBasicBlocks().isEmpty() || mth.contains(AType.JADX_ERROR)) {
        return;
    }
    // check if all blocks included in regions
    final Set<BlockNode> blocksInRegions = new HashSet<BlockNode>();
    DepthRegionTraversal.traverse(mth, new AbstractRegionVisitor() {

        @Override
        public void processBlock(MethodNode mth, IBlock container) {
            if (!(container instanceof BlockNode)) {
                return;
            }
            BlockNode block = (BlockNode) container;
            if (blocksInRegions.add(block)) {
                return;
            }
            if (!block.contains(AFlag.RETURN) && !block.contains(AFlag.SKIP) && !block.contains(AFlag.SYNTHETIC) && !block.getInstructions().isEmpty()) {
                // TODO
                // mth.add(AFlag.INCONSISTENT_CODE);
                LOG.debug(" Duplicated block: {} in {}", block, mth);
            }
        }
    });
    if (mth.getBasicBlocks().size() != blocksInRegions.size()) {
        for (BlockNode block : mth.getBasicBlocks()) {
            if (!blocksInRegions.contains(block) && !block.getInstructions().isEmpty() && !block.contains(AFlag.SKIP)) {
                mth.add(AFlag.INCONSISTENT_CODE);
                LOG.debug(" Missing block: {} in {}", block, mth);
            }
        }
    }
    // check loop conditions
    DepthRegionTraversal.traverse(mth, new AbstractRegionVisitor() {

        @Override
        public boolean enterRegion(MethodNode mth, IRegion region) {
            if (region instanceof LoopRegion) {
                BlockNode loopHeader = ((LoopRegion) region).getHeader();
                if (loopHeader != null && loopHeader.getInstructions().size() != 1) {
                    ErrorsCounter.methodError(mth, "Incorrect condition in loop: " + loopHeader);
                }
            }
            return true;
        }
    });
}

Example 4 with MethodNode

use of jadx.core.dex.nodes.MethodNode in project jadx by skylot.

the class ClassGen method addEnumFields.

private void addEnumFields(CodeWriter code) throws CodegenException {
    EnumClassAttr enumFields = cls.get(AType.ENUM_CLASS);
    if (enumFields == null) {
        return;
    }
    InsnGen igen = null;
    for (Iterator<EnumField> it = enumFields.getFields().iterator(); it.hasNext(); ) {
        EnumField f = it.next();
        code.startLine(f.getField().getAlias());
        ConstructorInsn constrInsn = f.getConstrInsn();
        if (constrInsn.getArgsCount() > f.getStartArg()) {
            if (igen == null) {
                igen = makeInsnGen(enumFields.getStaticMethod());
            }
            MethodNode callMth = cls.dex().resolveMethod(constrInsn.getCallMth());
            igen.generateMethodArguments(code, constrInsn, f.getStartArg(), callMth);
        }
        if (f.getCls() != null) {
            code.add(' ');
            new ClassGen(f.getCls(), this).addClassBody(code);
        }
        if (it.hasNext()) {
            code.add(',');
        }
    }
    if (isMethodsPresents() || isFieldsPresents() || isInnerClassesPresents()) {
        if (enumFields.getFields().isEmpty()) {
            code.startLine();
        }
        code.add(';');
        if (isFieldsPresents()) {
            code.startLine();
        }
    }
}

Example 5 with MethodNode

use of jadx.core.dex.nodes.MethodNode in project jadx by skylot.

the class InsnGen method makeConstructor.

private void makeConstructor(ConstructorInsn insn, CodeWriter code) throws CodegenException {
    ClassNode cls = mth.dex().resolveClass(insn.getClassType());
    if (cls != null && cls.contains(AFlag.ANONYMOUS_CLASS) && !fallback) {
        inlineAnonymousConstr(code, cls, insn);
        return;
    }
    if (insn.isSelf()) {
        throw new JadxRuntimeException("Constructor 'self' invoke must be removed!");
    }
    if (insn.isSuper()) {
        code.add("super");
    } else if (insn.isThis()) {
        code.add("this");
    } else {
        code.add("new ");
        useClass(code, insn.getClassType());
    }
    MethodNode callMth = mth.dex().resolveMethod(insn.getCallMth());
    generateMethodArguments(code, insn, 0, callMth);
}