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Stop using a string literal as a format argument #96248

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merged 1 commit into from
Apr 22, 2022

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TaKO8Ki
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@TaKO8Ki TaKO8Ki commented Apr 20, 2022

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@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Apr 20, 2022
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r? @compiler-errors

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Apr 20, 2022
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@TaKO8Ki, one line PRs like this are (in my opinion) not significant enough to review... Performance hasn't changed and readability only increased slightly.

Do you mind including changes like this in a more significant PR when you're editing code near by, instead of putting up such small changes independently? Thanks!

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TaKO8Ki commented Apr 20, 2022

@compiler-errors
I completely agree with you. However, when reading the rustc code, I sometimes find strange programs like this one, so I created this patch for it because I don't feel comfortable leaving it as it is, just like a typo.

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I am just confused why not all of the usages were fixed in this file, or even (if i saw correctly) in this function? I recommend batching at least a few of these into a PR, so we don't have a lot of tiny commits in the logs..

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TaKO8Ki commented Apr 21, 2022

@compiler-errors
This is because the main point of this pull request is not to use format-args-capture, but to stop using a string literal as a format argument like the following. The former is what I did incidentally.

- format!("{}{}", snippet, ".collect::<Vec<_>>()"),
+ format!("{}.collect::<Vec<_>>()", snippet),

Should I make additional changes like #96065?

@TaKO8Ki TaKO8Ki changed the title Remove an unnecessary format arg Stop using a string literal as a format argument Apr 21, 2022
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I am still not convinced that this change does anything meaningful, but also I will not block it. Thanks for making this contribution -- but also keep this in mind when putting up one-line changes like this that don't affect performance or readability 😅

If you want to change more spots to use format-args-capture, then at least please batch it together, maybe a few crates together at once.

@bors r+ rollup=always

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bors commented Apr 21, 2022

📌 Commit 5078b05 has been approved by compiler-errors

@bors bors 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 Apr 21, 2022
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TaKO8Ki commented Apr 21, 2022

@compiler-errors
I'm sorry. I understand.

bors added a commit to rust-lang-ci/rust that referenced this pull request Apr 21, 2022
Rollup of 5 pull requests

Successful merges:

 - rust-lang#95434 (Only output DepKind in dump-dep-graph.)
 - rust-lang#96248 (Stop using a string literal as a format argument)
 - rust-lang#96251 (Update books)
 - rust-lang#96269 (errors: minor translation-related changes)
 - rust-lang#96289 (Remove redundant `format!`s)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 18b6ad3 into rust-lang:master Apr 22, 2022
@rustbot rustbot added this to the 1.62.0 milestone Apr 22, 2022
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5 participants