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Fix mutaby used async function argument in closure for needless_pass_by_ref_mut #11492

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merged 2 commits into from Sep 20, 2023

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GuillaumeGomez
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Fixes #11380.

The problem was that it needed to go through closures as well in async functions to correctly find the mutable usage of async function arguments.

changelog: Correctly handle mutable usage of async function arguments in closures.

r? @Centri3

@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label Sep 13, 2023
@GuillaumeGomez GuillaumeGomez changed the title Add regression test for mutaby used asyncfunction argument in returned closure for needless_pass_by_ref_mut Fix mutaby used async function argument in closure for needless_pass_by_ref_mut Sep 13, 2023
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Just two nits. Looks good otherwise

clippy_lints/src/needless_pass_by_ref_mut.rs Outdated Show resolved Hide resolved
clippy_lints/src/needless_pass_by_ref_mut.rs Show resolved Hide resolved
…sync functions right besides other closures handling.

Add doc comment explaining what `MutablyUsedVariablesCtxt::prev_move_to_closure` is about.
@GuillaumeGomez
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Applied your suggestions @Centri3.

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Centri3 commented Sep 20, 2023

@bors r+

Thanks!

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bors commented Sep 20, 2023

📌 Commit b8b420c has been approved by Centri3

It is now in the queue for this repository.

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bors commented Sep 20, 2023

⌛ Testing commit b8b420c with merge ece3878...

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bors commented Sep 20, 2023

☀️ Test successful - checks-action_dev_test, checks-action_remark_test, checks-action_test
Approved by: Centri3
Pushing ece3878 to master...

@bors bors merged commit ece3878 into rust-lang:master Sep 20, 2023
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@GuillaumeGomez GuillaumeGomez deleted the async-fn-returned-closure branch September 20, 2023 08:39
@fasterthanlime
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Still seeing this on 2023-09-21, I guess the nightly build happened before the merge? I'm always unclear on what the exact timing is there.

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Centri3 commented Sep 21, 2023

Sync hasn't happened yet, last one was rust-lang/rust#115790. It's biweekly so it'll be a few days until it's in nightly.

wbinnssmith added a commit to vercel/turbo that referenced this pull request Oct 6, 2023
This:
- Updates rust-toolchain to nightly-2023-10-06
- Removes allowing clippy rules for needless_pass_by_ref_mut and non_canonical_partial_ord_impl as the linked issues appear to have been resolved in [0] and [1] respectively
- Fixes apparently legitimate issues now reported by clippy

Test Plan: CI

[0] rust-lang/rust-clippy#11492
[1] rust-lang/rust-clippy#11188
wbinnssmith added a commit to vercel/turbo that referenced this pull request Oct 10, 2023
This:
- Updates rust-toolchain to nightly-2023-10-06
- Removes allowing clippy rules for needless_pass_by_ref_mut and
non_canonical_partial_ord_impl as the linked issues appear to have been
resolved in [0] and [1] respectively
- Fixes apparently legitimate issues now reported by clippy

Test Plan: CI

[0] rust-lang/rust-clippy#11492
[1] rust-lang/rust-clippy#11188


Closes WEB-1732
Zertsov pushed a commit to vercel/turbo that referenced this pull request Oct 11, 2023
This:
- Updates rust-toolchain to nightly-2023-10-06
- Removes allowing clippy rules for needless_pass_by_ref_mut and
non_canonical_partial_ord_impl as the linked issues appear to have been
resolved in [0] and [1] respectively
- Fixes apparently legitimate issues now reported by clippy

Test Plan: CI

[0] rust-lang/rust-clippy#11492
[1] rust-lang/rust-clippy#11188


Closes WEB-1732
@conradludgate
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Hi, this issue exists on the beta build currently. Can we get this fix backported?

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needless_pass_by_ref_mut false positive in closure in async
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