feat(swarm): impl FromStr for StreamProtocol
#3951
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Allows using `StreamProtocol` e.g. as a `clap` argument.
| inner: Either::Right(Arc::from(protocol)), // FIXME: Can we somehow reuse the allocation from the owned string? | ||
| inner: Either::Right(Arc::from(protocol)), |
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Leftover from a refactor, right @thomaseizinger?
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No, this still applies. Arc will allocate again despite the String already having an allocation.
| type Err = InvalidProtocol; | ||
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| fn from_str(s: &str) -> Result<Self, Self::Err> { | ||
| Self::try_from_owned(s.into()) |
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This results in one more allocation than necessary because we could also construct an Arc<str> from a string slice and don't have to go via an owned string.
We would duplicate the check then but perhaps you can refactor that check out in a separate function?
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Or perhaps we can widen the accepted type on try_from_owned to something impl? But then we'd have to rename it as well ..
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Friendly ping @mxinden. |
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Closing here. I don't have a direct need for this any longer. In case someone does, please open as a new pull request. |
Description
Allows using
StreamProtocole.g. as aclapargument.Notes & open questions
Follow-up to #3746 (comment).
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