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Remove invalid case for mutable borrow suggestion #105655

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merged 2 commits into from
Jan 9, 2023

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If we have a call such as foo(&mut buf) and after reference
collapsing the type is inferred as &T where-as the required type is
&mut T, don't suggest foo(&mut mut buf). This is wrong syntactically
and the issue lies elsewhere, not in the borrow.

Fixes #105645

If we have a call such as `foo(&mut buf)` and after reference
collapsing the type is inferred as `&T` where-as the required type is
`&mut T`, don't suggest `foo(&mut mut buf)`. This is wrong syntactically
and the issue lies elsewhere, not in the borrow.

Fixes rust-lang#105645
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rustbot commented Dec 13, 2022

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

Please see the contribution instructions for more information.

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Dec 13, 2022
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nagisa commented Jan 9, 2023

r? rust-lang/compiler

@rustbot rustbot assigned oli-obk and unassigned nagisa Jan 9, 2023
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oli-obk commented Jan 9, 2023

I guess this code uses snippet logic a lot already, so it doesn't make it worse, but we should probably figure out how to clean this up and not use string matching

@bors r+ rollup

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bors commented Jan 9, 2023

📌 Commit afefbb6 has been approved by oli-obk

It is now in the queue for this repository.

@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 Jan 9, 2023
JohnTitor pushed a commit to JohnTitor/rust that referenced this pull request Jan 9, 2023
Remove invalid case for mutable borrow suggestion

If we have a call such as `foo(&mut buf)` and after reference
collapsing the type is inferred as `&T` where-as the required type is
`&mut T`, don't suggest `foo(&mut mut buf)`. This is wrong syntactically
and the issue lies elsewhere, not in the borrow.

Fixes rust-lang#105645
JohnTitor pushed a commit to JohnTitor/rust that referenced this pull request Jan 9, 2023
Remove invalid case for mutable borrow suggestion

If we have a call such as `foo(&mut buf)` and after reference
collapsing the type is inferred as `&T` where-as the required type is
`&mut T`, don't suggest `foo(&mut mut buf)`. This is wrong syntactically
and the issue lies elsewhere, not in the borrow.

Fixes rust-lang#105645
bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 9, 2023
…fee1-dead

Rollup of 10 pull requests

Successful merges:

 - rust-lang#105292 (Change a commit_if_ok call to probe)
 - rust-lang#105655 (Remove invalid case for mutable borrow suggestion)
 - rust-lang#106047 (Fix ui constant tests for big-endian platforms)
 - rust-lang#106061 (Enable Shadow Call Stack for Fuchsia on AArch64)
 - rust-lang#106164 (Move `check_region_obligations_and_report_errors` to `TypeErrCtxt`)
 - rust-lang#106291 (Fix incorrect suggestion for extra `&` in pattern)
 - rust-lang#106389 (Simplify some canonical type alias names)
 - rust-lang#106468 (Use FxIndexSet when updating obligation causes in `adjust_fulfillment_errors_for_expr_obligation`)
 - rust-lang#106549 (Use fmt named parameters in rustc_borrowck)
 - rust-lang#106614 (error-code docs improvements (No. 2))

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit c1f8a3f into rust-lang:master Jan 9, 2023
@rustbot rustbot added this to the 1.68.0 milestone Jan 9, 2023
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Successfully merging this pull request may close these issues.

Compiler suggests writing &mut mut foo in E0277 with .as_slice()
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