swc/crates/swc_ecma_minifier/tests/single-pass/5/input.js

export function Nj(a) {
    a: for (;;) {
        for (; null === a.sibling; ) {
            if (null === a.return || Mj(a.return)) return null;
            a = a.return;
        }
        for (
            a.sibling.return = a.return, a = a.sibling;
            5 !== a.tag && 6 !== a.tag && 18 !== a.tag;

        ) {
            if (2 & a.flags || null === a.child || 4 === a.tag) continue a;
            (a.child.return = a), (a = a.child);
        }
        if (!(2 & a.flags)) return a.stateNode;
    }
}