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Peekable::try_peek #2793

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nazar-pc opened this issue Oct 27, 2023 · 1 comment
Open

Peekable::try_peek #2793

nazar-pc opened this issue Oct 27, 2023 · 1 comment
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A-stream Area: futures::stream C-feature-request S-needs-implementation Status: Implementation work is needed.

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@nazar-pc
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nazar-pc commented Oct 27, 2023 •
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Peekable combinator is currenly less useful than it could have been.

I have a use case where it would be helpful to check the next element in a stream (if it is already there) and start preparation for its processing, but at the same time I don't want to delay processing of current element. So I need .try_peek() that is similar to .try_next(), but doesn't advance the stream itself.
@taiki-e taiki-e added C-feature-request A-stream Area: futures::stream S-needs-implementation Status: Implementation work is needed. labels Oct 27, 2023
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taiki-e commented Oct 27, 2023

Seems reasonable to me.

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