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Refactor Option::filter method #45933

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Merged
merged 1 commit into from
Nov 13, 2017
Merged

Refactor Option::filter method #45933

merged 1 commit into from
Nov 13, 2017

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shanavas786
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@kennytm kennytm added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Nov 11, 2017
sinkuu
sinkuu reviewed Nov 11, 2017
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src/libcore/option.rs Outdated
}
None => None,
}
};
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Nitpicking: ; is unnecessary here.

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Yeah, Updated. Thanks

@alexcrichton
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@bors: r+

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bors commented Nov 12, 2017

📌 Commit abff092 has been approved by alexcrichton

@alexcrichton alexcrichton self-assigned this Nov 12, 2017
@kennytm kennytm added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 12, 2017
kennytm added a commit to kennytm/rust that referenced this pull request Nov 13, 2017
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Rollup merge of rust-lang#45933 - shanavas786:refactor-filter, r=alex…
3604737 
…crichton

Refactor Option::filter method
@kennytm kennytm mentioned this pull request Nov 13, 2017
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bors added a commit that referenced this pull request Nov 13, 2017
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Auto merge of #45956 - kennytm:rollup, r=kennytm
e312c8a 
Rollup of 9 pull requests

- Successful merges: #45828, #45892, #45893, #45914, #45917, #45927, #45933, #45952, #45954
- Failed merges:
@bors bors merged commit abff092 into rust-lang:master Nov 13, 2017
@LukasKalbertodt
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What was the reason for this change? I don't really care that my code was changed, I just don't really understand why. I guess it's because it has fewer lines and only one None? Was this change discussed in IRC? I would really appreciate it, if PRs for such changes would have at least a short description. Otherwise the rest of the world has no clue what's going on.

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bstrie commented Nov 15, 2017

@LukasKalbertodt I surmise it was just mildly more idiomatic to use if let to reduce the slight amount of repetition.

@Kerollmops
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Kerollmops commented Nov 15, 2017 •
edited
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Why not this so ?

match self {
    Some(x) if predicate(&x) => Some(x),
    _ => None
}

@sinkuu
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sinkuu commented Nov 16, 2017

@Kerollmops That would be cetainly better, but currently impossible (produces an error E0008).

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Ho ! you're right ! sorry ! I hope the NLL will change this kind of error.

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@sinkuu sinkuu sinkuu left review comments

@KamilaBorowska KamilaBorowska KamilaBorowska approved these changes

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@alexcrichton alexcrichton

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@shanavas786 @alexcrichton @bors @LukasKalbertodt @bstrie @Kerollmops @sinkuu @KamilaBorowska @kennytm