Tail call optimization

[bestouff]

When available in rustc, momo should use tail call optimization to have the best or both worlds: compact binaries and no extra stackframe.

[Artoria2e5]

Doesn't the current format of

    pub fn generic<I: Into<usize>, S: AsRef<str>, M: AsMut<[usize]>>(
        &self,
        i: I,
        s: S,
        mut m: M,
    ) -> usize {
        self._generic_inner(i.into(), s.as_ref(), m.as_mut())
    }

already produce a tail call?

[bestouff]

It often does but it's not guaranteed

[Artoria2e5]

Hmm, I guess we will have to wait for become to become a thing then. Apparently something looking like a tail call can still not be one due to Drop and other shenanigans.