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@y21 y21 commented Oct 2, 2023

Closes #11537

Lint description should explain this PR :)

changelog: new lint: repeat_vec_with_capacity

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rustbot commented Oct 2, 2023

r? @dswij

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@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label Oct 2, 2023
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bors commented Nov 14, 2023

☔ The latest upstream changes (presumably #11791) made this pull request unmergeable. Please resolve the merge conflicts.

@y21 y21 force-pushed the repeat_vec_with_capacity branch from 5574294 to 3f7dc80 Compare November 15, 2023 02:41
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y21 commented Nov 15, 2023

@dswij you wanted me to ping you :)

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bors commented Nov 19, 2023

☔ The latest upstream changes (presumably #11781) made this pull request unmergeable. Please resolve the merge conflicts.

@y21 y21 force-pushed the repeat_vec_with_capacity branch from 3f7dc80 to 01f40fb Compare November 19, 2023 12:52
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Sorry for the late review.

Implementation looks great! Just some minor comments

/// ### What it does
/// Looks for patterns such as `vec![Vec::with_capacity(x); n]` or `iter::repeat(Vec::with_capacity(x))`.
///
/// ### Why is this bad?
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Excellent explanation!

@y21 y21 force-pushed the repeat_vec_with_capacity branch from 01f40fb to 8c63a3e Compare December 1, 2023 16:18
@y21 y21 force-pushed the repeat_vec_with_capacity branch from 8c63a3e to 76eb781 Compare December 1, 2023 16:24
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dswij commented Dec 1, 2023

Ran lintcheck, no repeat_vec_with_capacity seems to be emitted.

LGTM, thanks @y21!

@bors r+

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bors commented Dec 1, 2023

📌 Commit 76eb781 has been approved by dswij

It is now in the queue for this repository.

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bors commented Dec 1, 2023

⌛ Testing commit 76eb781 with merge 5ac76ac...

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bors commented Dec 1, 2023

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: dswij
Pushing 5ac76ac to master...

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Successfully merging this pull request may close these issues.

vec![Vec::with_capacity(x); n] has unintuitive behaviour.
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