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

Example 81 with InsnNode

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

the class ExtractFieldInit method compareInsns.

private static boolean compareInsns(List<InsnNode> base, List<InsnNode> other) {
    if (base.size() != other.size()) {
        return false;
    }
    int count = base.size();
    for (int i = 0; i < count; i++) {
        InsnNode baseInsn = base.get(i);
        InsnNode otherInsn = other.get(i);
        if (!baseInsn.isSame(otherInsn)) {
            return false;
        }
    }
    return true;
}

Example 82 with InsnNode

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

the class ExtractFieldInit method moveStaticFieldsInit.

private static void moveStaticFieldsInit(ClassNode cls) {
    MethodNode classInitMth = cls.getClassInitMth();
    if (classInitMth == null) {
        return;
    }
    for (FieldNode field : cls.getFields()) {
        if (field.contains(AFlag.DONT_GENERATE)) {
            continue;
        }
        if (field.getAccessFlags().isStatic()) {
            List<InsnNode> initInsns = getFieldAssigns(classInitMth, field, InsnType.SPUT);
            if (initInsns.size() == 1) {
                InsnNode insn = initInsns.get(0);
                if (checkInsn(insn)) {
                    InstructionRemover.remove(classInitMth, insn);
                    addFieldInitAttr(classInitMth, field, insn);
                }
            }
        }
    }
}

Example 83 with InsnNode

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

the class MethodInlineVisitor method inlineMth.

private static void inlineMth(MethodNode mth, BlockNode firstBlock, BlockNode returnBlock) {
    List<InsnNode> insnList = firstBlock.getInstructions();
    if (insnList.isEmpty()) {
        // synthetic field getter
        BlockNode block = mth.getBasicBlocks().get(1);
        InsnNode insn = block.getInstructions().get(0);
        // set arg from 'return' instruction
        addInlineAttr(mth, InsnNode.wrapArg(insn.getArg(0)));
        return;
    }
    // synthetic field setter or method invoke
    if (insnList.size() == 1) {
        addInlineAttr(mth, insnList.get(0));
        return;
    }
    // other field operations
    if (insnList.size() == 2 && returnBlock.getInstructions().size() == 1 && !mth.getReturnType().equals(ArgType.VOID)) {
        InsnNode get = insnList.get(0);
        InsnNode put = insnList.get(1);
        InsnArg retArg = returnBlock.getInstructions().get(0).getArg(0);
        if (get.getType() == InsnType.IGET && put.getType() == InsnType.IPUT && retArg.isRegister() && get.getResult().equalRegisterAndType((RegisterArg) retArg)) {
            RegisterArg retReg = (RegisterArg) retArg;
            retReg.getSVar().removeUse(retReg);
            CodeShrinker.shrinkMethod(mth);
            insnList = firstBlock.getInstructions();
            if (insnList.size() == 1) {
                addInlineAttr(mth, insnList.get(0));
            }
        }
    }
}

Example 84 with InsnNode

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

the class LoopRegion method checkPreCondition.

/**
	 * Check if pre-conditions can be inlined into loop condition
	 */
public boolean checkPreCondition() {
    List<InsnNode> insns = preCondition.getInstructions();
    if (insns.isEmpty()) {
        return true;
    }
    IfNode ifInsn = getIfInsn();
    int size = insns.size();
    for (int i = 0; i < size; i++) {
        InsnNode insn = insns.get(i);
        if (insn.getResult() == null) {
            return false;
        }
        RegisterArg res = insn.getResult();
        if (res.getSVar().getUseCount() > 1) {
            return false;
        }
        boolean found = false;
        // search result arg in other insns
        for (int j = i + 1; j < size; j++) {
            if (insns.get(i).containsArg(res)) {
                found = true;
            }
        }
        // or in if insn
        if (!found && ifInsn.containsArg(res)) {
            found = true;
        }
        if (!found) {
            return false;
        }
    }
    return true;
}

Example 85 with InsnNode

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

the class TryCatchBlock method merge.

public boolean merge(MethodNode mth, TryCatchBlock tryBlock) {
    if (tryBlock == this) {
        return false;
    }
    for (InsnNode insn : tryBlock.getInsns()) {
        this.addInsn(insn);
    }
    this.handlers.addAll(tryBlock.handlers);
    for (ExceptionHandler eh : handlers) {
        eh.setTryBlock(this);
    }
    // clear
    tryBlock.handlers.clear();
    tryBlock.removeWholeBlock(mth);
    return true;
}