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Add [T; N]::each_ref
and [T; N]::each_mut
#75490
Add [T; N]::each_ref
and [T; N]::each_mut
#75490
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Oh no, not this again 😞 |
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@scottmcm's arraytools calls them |
Hm I was thinking about this, and maybe it's useful to define an intermediate struct, which is like an |
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I don't think a separate type is needed here. As a parallel,
I agree, and made Hopefully a future PR will allow us to consider just having that in core.
Any chance the |
Hm, if I can offer a counterpoint to |
I'd actually say that Vec totally should have map as well, because it can potentially reuse its backing memory if the target type has the same size and alignment. So map not existing (yet?) on Vec is not really an argument. |
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[T; N]::as_ref
and [T; N]::as_mut
[T; N]::as_ref_elements
and [T; N]::as_mut_elements
I decided to only deal with the I just force pushed to name the methods |
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/// ``` | ||
/// | ||
/// This method is particularly useful if combined with other methods, like | ||
/// [`map`](#method.map). This way, you can can avoid moving the original |
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Does anyone know how to use intra-doc links for this? [`map`]
and [`Self::map`]
don't work.
☔ The latest upstream changes (presumably #76265) made this pull request unmergeable. Please resolve the merge conflicts. |
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I agree. |
@shepmaster Are you suggesting we should try to run crater with |
I think it's worth it. My gut says that the incidences will be much lower than |
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@shepmaster I hope you are right. I don't want to be the guy that always opens the "breaks all the code" PRs 😄 I forced pushed to rename back to |
@bors try |
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[T; N]::as_ref_elements
and [T; N]::as_mut_elements
[T; N]::each_ref
and [T; N]::each_mut
@dtolnay I'm not fully convinced yet, but we can still discuss the name before stabilization. I updated the PR with the names you suggested :) |
The job Click to see the possible cause of the failure (guessed by this bot)
|
These methods work very similarly to `Option`'s methods `as_ref` and `as_mut`. They are useful in several situation, particularly when calling other array methods (like `map`) on the result. Unfortunately, we can't easily call them `as_ref` and `as_mut` as that would shadow those methods on slices, thus being a breaking change (that is likely to affect a lot of code).
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📌 Commit 4038042 has been approved by |
Oh wow, you're fast :D I also rebased locally and was just testing. Thanks! |
⌛ Testing commit 4038042 with merge 6bb7313d5c346ae7f2397e6d61390ff288e32016... |
💥 Test timed out |
@bors retry |
☀️ Test successful - checks-actions |
This PR adds the methods
each_ref
andeach_mut
to[T; N]
. The ability to add methods to arrays was added in #75212. These two methods are particularly useful withmap
which was also added in that PR. Tracking issue: #76118