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Add redundant_as_str lint #11526

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merged 8 commits into from Sep 18, 2023
Merged

Add redundant_as_str lint #11526

merged 8 commits into from Sep 18, 2023

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Dev380
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@Dev380 Dev380 commented Sep 17, 2023

This lint checks for as_str on a String immediately followed by as_bytes or is_empty as those methods are available on String too. This could possibly also be extended to &[u8] in the future.

changelog: New lint [redundant_as_str] #11526

This lint checks for `as_str` on a `String` immediately followed by `as_bytes` or `is_empty` as those methods are available on `String` too. This could possibly also be extended to `&[u8]` in the future.
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rustbot commented Sep 17, 2023

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @Manishearth (or someone else) soon.

Please see the contribution instructions for more information. Namely, in order to ensure the minimum review times lag, PR authors and assigned reviewers should ensure that the review label (S-waiting-on-review and S-waiting-on-author) stays updated, invoking these commands when appropriate:

  • @rustbot author: the review is finished, PR author should check the comments and take action accordingly
  • @rustbot review: the author is ready for a review, this PR will be queued again in the reviewer's queue

@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label Sep 17, 2023
#![warn(clippy::redundant_as_str)]

fn main() {
let _redundant = "Hello, world!".to_owned().as_str().as_bytes();
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nit: please add tests for other methods that are not redundant to ensure the lint doesn't trigger in those cases

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I've added a few more test cases that don't trigger the lint.

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@bors r+

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bors commented Sep 18, 2023

📌 Commit d9d25e9 has been approved by Manishearth

It is now in the queue for this repository.

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bors commented Sep 18, 2023

⌛ Testing commit d9d25e9 with merge 5cba09c...

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bors commented Sep 18, 2023

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: Manishearth
Pushing 5cba09c to master...

@bors bors merged commit 5cba09c into rust-lang:master Sep 18, 2023
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@Dev380 Dev380 deleted the redundant-as-str branch September 18, 2023 21:46
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4 participants