Tracking issue for `array::try_map`

[eopb]

Feature gate: #![feature(array_try_map)]

This is a tracking issue for

Public API

https://doc.rust-lang.org/nightly/std/primitive.array.html#method.try_map

impl<T, const N: usize> [T; N] {
    pub fn try_map<F, R>(
        self,
        f: F
    ) -> <<R as Try>::Residual as Residual<[<R as Try>::Output; N]>>::TryType
    where
        F: FnMut(T) -> R,
        R: Try,
        <R as Try>::Residual: Residual<[<R as Try>::Output; N]>;
}

Steps / History

• Implementation: array::try_map #79713 Make array::{try_from_fn, try_map} and Iterator::try_find generic over Try #91286
• Decide on just-Result, vs potentially supporting Option and other Try types Decide on generic-ness of functions like Iterator::try_find and array::try_map #85115
• Final commenting period (FCP)
• Stabilization PR

Unresolved Questions

• None yet.

[a-lafrance]

Not sure if this change is still active, but I've stumbled upon a use case where a broader version of this for iterators in general, rather than strictly for arrays, would be useful. Is that something worth considering?

I'm totally new to both Rust contributions & open source in general, so I'm not sure if the idea of a general try_map is worth considering/pursuing, but I just thought I'd throw the idea out there since I thought it would be useful. Appreciate any feedback & insights!

(And, if it gets to that point, I'd be interested in taking a stab at implementing it. Would love to make a contribution to Rust, no matter how small!)