Examples with MethodInfo jadx.core.dex.info.MethodInfo used on opensource projects

Example 21 with MethodInfo

use of jadx.core.dex.info.MethodInfo in project jadx by skylot.

the class ClassModifier method getArgsToFieldsMapping.

private static Map<InsnArg, FieldNode> getArgsToFieldsMapping(MethodNode mth, List<InsnNode> usedInsns) {
    MethodInfo callMth = mth.getMethodInfo();
    ClassNode cls = mth.getParentClass();
    List<RegisterArg> argList = mth.getArgRegs();
    ClassNode outerCls = mth.getUseIn().get(0).getParentClass();
    int startArg = 0;
    if (callMth.getArgsCount() != 0 && callMth.getArgumentsTypes().get(0).equals(outerCls.getClassInfo().getType())) {
        startArg = 1;
    }
    Map<InsnArg, FieldNode> map = new LinkedHashMap<>();
    int argsCount = argList.size();
    for (int i = startArg; i < argsCount; i++) {
        RegisterArg arg = argList.get(i);
        InsnNode useInsn = getParentInsnSkipMove(arg);
        if (useInsn == null) {
            return Collections.emptyMap();
        }
        switch(useInsn.getType()) {
            case IPUT:
                FieldNode fieldNode = cls.searchField((FieldInfo) ((IndexInsnNode) useInsn).getIndex());
                if (fieldNode == null || !fieldNode.getAccessFlags().isSynthetic()) {
                    return Collections.emptyMap();
                }
                map.put(arg, fieldNode);
                usedInsns.add(useInsn);
                break;
            case CONSTRUCTOR:
                ConstructorInsn superConstr = (ConstructorInsn) useInsn;
                if (!superConstr.isSuper()) {
                    return Collections.emptyMap();
                }
                usedInsns.add(useInsn);
                break;
            default:
                return Collections.emptyMap();
        }
    }
    return map;
}

Example 22 with MethodInfo

use of jadx.core.dex.info.MethodInfo in project jadx by skylot.

the class ClassModifier method checkSyntheticWrapper.

private static boolean checkSyntheticWrapper(MethodNode mth, InsnNode insn) {
    InsnType insnType = insn.getType();
    if (insnType != InsnType.INVOKE) {
        return false;
    }
    InvokeNode invokeInsn = (InvokeNode) insn;
    if (invokeInsn.getInvokeType() == InvokeType.SUPER) {
        return false;
    }
    MethodInfo callMth = invokeInsn.getCallMth();
    MethodNode wrappedMth = mth.root().resolveMethod(callMth);
    if (wrappedMth == null) {
        return false;
    }
    AccessInfo wrappedAccFlags = wrappedMth.getAccessFlags();
    if (wrappedAccFlags.isStatic()) {
        return false;
    }
    if (callMth.getArgsCount() != mth.getMethodInfo().getArgsCount()) {
        return false;
    }
    // rename method only from current class
    if (!mth.getParentClass().equals(wrappedMth.getParentClass())) {
        return false;
    }
    // all args must be registers passed from method args (allow only casts insns)
    for (InsnArg arg : insn.getArguments()) {
        if (!registersAndCastsOnly(arg)) {
            return false;
        }
    }
    // remove confirmed, change visibility and name if needed
    if (!wrappedAccFlags.isPublic()) {
        // must be public
        FixAccessModifiers.changeVisibility(wrappedMth, AccessFlags.PUBLIC);
    }
    String alias = mth.getAlias();
    if (!Objects.equals(wrappedMth.getAlias(), alias)) {
        wrappedMth.getMethodInfo().setAlias(alias);
    }
    return true;
}

Example 23 with MethodInfo

use of jadx.core.dex.info.MethodInfo in project jadx by skylot.

the class LoopRegionVisitor method checkInvoke.

/**
 * Check if instruction is a interface invoke with corresponding parameters.
 */
private static boolean checkInvoke(InsnNode insn, String declClsFullName, String mthId) {
    if (insn == null) {
        return false;
    }
    if (insn.getType() == InsnType.INVOKE) {
        InvokeNode inv = (InvokeNode) insn;
        MethodInfo callMth = inv.getCallMth();
        if (inv.getInvokeType() == InvokeType.INTERFACE && callMth.getShortId().equals(mthId)) {
            if (declClsFullName == null) {
                return true;
            }
            return callMth.getDeclClass().getFullName().equals(declClsFullName);
        }
    }
    return false;
}

Example 24 with MethodInfo

use of jadx.core.dex.info.MethodInfo in project jadx by skylot.

the class ModVisitor method processInvoke.

private static void processInvoke(MethodNode mth, BlockNode block, int insnNumber, InstructionRemover remover) {
    ClassNode parentClass = mth.getParentClass();
    InsnNode insn = block.getInstructions().get(insnNumber);
    InvokeNode inv = (InvokeNode) insn;
    MethodInfo callMth = inv.getCallMth();
    if (!callMth.isConstructor()) {
        return;
    }
    InsnNode instArgAssignInsn = ((RegisterArg) inv.getArg(0)).getAssignInsn();
    ConstructorInsn co = new ConstructorInsn(mth, inv);
    boolean remove = false;
    if (co.isSuper() && (co.getArgsCount() == 0 || parentClass.isEnum())) {
        remove = true;
    } else if (co.isThis() && co.getArgsCount() == 0) {
        MethodNode defCo = parentClass.searchMethodByName(callMth.getShortId());
        if (defCo == null || defCo.isNoCode()) {
            // default constructor not implemented
            remove = true;
        }
    }
    // remove super() call in instance initializer
    if (parentClass.isAnonymous() && mth.isDefaultConstructor() && co.isSuper()) {
        remove = true;
    }
    if (remove) {
        remover.add(insn);
        return;
    }
    if (co.isNewInstance()) {
        InsnNode newInstInsn = removeAssignChain(instArgAssignInsn, remover, InsnType.NEW_INSTANCE);
        if (newInstInsn != null) {
            RegisterArg instArg = newInstInsn.getResult();
            RegisterArg resultArg = co.getResult();
            if (!resultArg.equals(instArg)) {
                // replace all usages of 'instArg' with result of this constructor instruction
                for (RegisterArg useArg : new ArrayList<RegisterArg>(instArg.getSVar().getUseList())) {
                    RegisterArg dup = resultArg.duplicate();
                    InsnNode parentInsn = useArg.getParentInsn();
                    parentInsn.replaceArg(useArg, dup);
                    dup.setParentInsn(parentInsn);
                    resultArg.getSVar().use(dup);
                }
            }
        }
    }
    ConstructorInsn replace = processConstructor(mth, co);
    if (replace != null) {
        co = replace;
    }
    replaceInsn(block, insnNumber, co);
    processAnonymousConstructor(mth, co);
}

Example 25 with MethodInfo

use of jadx.core.dex.info.MethodInfo in project jadx by skylot.

the class MethodNode method isArgsOverload.

/**
	 * Return true if exists method with same name and arguments count
	 */
public boolean isArgsOverload() {
    int argsCount = mthInfo.getArgumentsTypes().size();
    if (argsCount == 0) {
        return false;
    }
    String name = getName();
    for (MethodNode method : parentClass.getMethods()) {
        MethodInfo otherMthInfo = method.mthInfo;
        if (this != method && otherMthInfo.getArgumentsTypes().size() == argsCount && otherMthInfo.getName().equals(name)) {
            return true;
        }
    }
    return false;
}