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

Example 1 with IfNode

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

the class IfMakerHelper method makeIfInfo.

static IfInfo makeIfInfo(BlockNode ifBlock) {
    IfNode ifNode = (IfNode) ifBlock.getInstructions().get(0);
    IfCondition condition = IfCondition.fromIfNode(ifNode);
    IfInfo info = new IfInfo(condition, ifNode.getThenBlock(), ifNode.getElseBlock());
    info.setIfBlock(ifBlock);
    info.getMergedBlocks().add(ifBlock);
    return info;
}

Example 2 with IfNode

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

the class BlockSplitter method isDoWhile.

private static boolean isDoWhile(Map<Integer, BlockNode> blocksMap, BlockNode curBlock, InsnNode insn) {
    // split 'do-while' block (last instruction: 'if', target this block)
    if (insn.getType() != InsnType.IF) {
        return false;
    }
    IfNode ifs = (IfNode) insn;
    BlockNode targetBlock = blocksMap.get(ifs.getTarget());
    return targetBlock == curBlock;
}

Example 3 with IfNode

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

the class ModVisitor method makeBooleanConvertInsn.

public static TernaryInsn makeBooleanConvertInsn(RegisterArg result, InsnArg castArg, ArgType type) {
    InsnArg zero = LiteralArg.make(0, type);
    long litVal = 1;
    if (type == ArgType.DOUBLE) {
        litVal = DOUBLE_TO_BITS;
    } else if (type == ArgType.FLOAT) {
        litVal = FLOAT_TO_BITS;
    }
    InsnArg one = LiteralArg.make(litVal, type);
    IfNode ifNode = new IfNode(IfOp.EQ, -1, castArg, LiteralArg.litTrue());
    IfCondition condition = IfCondition.fromIfNode(ifNode);
    return new TernaryInsn(condition, result, one, zero);
}

Example 4 with IfNode

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

the class IfMakerHelper method makeIfInfo.

@Nullable
static IfInfo makeIfInfo(MethodNode mth, BlockNode ifBlock) {
    InsnNode lastInsn = BlockUtils.getLastInsn(ifBlock);
    if (lastInsn == null || lastInsn.getType() != InsnType.IF) {
        return null;
    }
    IfNode ifNode = (IfNode) lastInsn;
    IfCondition condition = IfCondition.fromIfNode(ifNode);
    IfInfo info = new IfInfo(mth, condition, ifNode.getThenBlock(), ifNode.getElseBlock());
    info.getMergedBlocks().add(ifBlock);
    return info;
}

Example 5 with IfNode

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

the class IfCondition method simplifyCmpOp.

private static IfCondition simplifyCmpOp(Compare c) {
    if (!c.getA().isInsnWrap()) {
        return null;
    }
    if (!c.getB().isLiteral()) {
        return null;
    }
    long lit = ((LiteralArg) c.getB()).getLiteral();
    if (lit != 0 && lit != 1) {
        return null;
    }
    InsnNode wrapInsn = ((InsnWrapArg) c.getA()).getWrapInsn();
    switch(wrapInsn.getType()) {
        case CMP_L:
        case CMP_G:
            if (lit == 0) {
                IfNode insn = c.getInsn();
                insn.changeCondition(insn.getOp(), wrapInsn.getArg(0), wrapInsn.getArg(1));
            }
            break;
        case ARITH:
            if (c.getB().getType() == ArgType.BOOLEAN) {
                ArithOp arithOp = ((ArithNode) wrapInsn).getOp();
                if (arithOp == ArithOp.OR || arithOp == ArithOp.AND) {
                    IfOp ifOp = c.getInsn().getOp();
                    boolean isTrue = ifOp == IfOp.NE && lit == 0 || ifOp == IfOp.EQ && lit == 1;
                    IfOp op = isTrue ? IfOp.NE : IfOp.EQ;
                    Mode mode = isTrue && arithOp == ArithOp.OR || !isTrue && arithOp == ArithOp.AND ? Mode.OR : Mode.AND;
                    IfNode if1 = new IfNode(op, -1, wrapInsn.getArg(0), LiteralArg.litFalse());
                    IfNode if2 = new IfNode(op, -1, wrapInsn.getArg(1), LiteralArg.litFalse());
                    return new IfCondition(mode, Arrays.asList(new IfCondition(new Compare(if1)), new IfCondition(new Compare(if2))));
                }
            }
            break;
        default:
            break;
    }
    return null;
}