Tracking issue for map_ok and map_err method for Poll<Option<Result<T, E>>>

[95th]

Currently map_ok and map_err methods are given for Poll<Result<T, E>>.

We should provide similar methods for Poll<Option<Result<T, E>>> as they are helpful in stream building code.

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Steps

• Implementation: Provide map_ok and map_err method for Poll<Option<Result<T, E>>> #63512
• Stabilization

Open questions

None

[mzabaluev]

Any plans to stabilize this?

[m-ou-se]

There aren't any open questions about this feature, and this has seen quite a few releases already. So it looks like this would be ready for stabilization.

@rfcbot merge

[rfcbot]

Team member @m-ou-se has proposed to merge this. The next step is review by the rest of the tagged team members:

• @Amanieu
• @BurntSushi
• @KodrAus
• @dtolnay
• @m-ou-se
• @sfackler
• @withoutboats

No concerns currently listed.

Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

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