Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck, remove some hacks #128244
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| && let Some(ty) = typeck_results.expr_ty_opt(borrowed_expr) | ||
| { | ||
| self.suggest_cloning(&mut err, ty, borrowed_expr, Some(move_spans)); | ||
| } else if typeck_results.expr_adjustments(expr).first().is_some_and(|adj| { |
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Implicit borrow, like in f() when f: impl FnMut.
… error in borrowck
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I was kind of relying on that to avoid introducing logic errors with the suggestion, but I'm ok with ripping these off, specially if we have an idea to produce better suggestions here. @bors r+ |
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#123813 (Add `REDUNDANT_IMPORTS` lint for new redundant import detection) - rust-lang#126697 ([RFC] mbe: consider the `_` in 2024 an expression) - rust-lang#127159 (match lowering: Hide `Candidate` from outside the lowering algorithm) - rust-lang#128244 (Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck, remove some hacks) - rust-lang#128431 (Add myself as VxWorks target maintainer for reference) - rust-lang#128438 (Add special-case for [T, 0] in dropck_outlives) - rust-lang#128457 (Fix docs for OnceLock::get_mut_or_init) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#123813 (Add `REDUNDANT_IMPORTS` lint for new redundant import detection) - rust-lang#126697 ([RFC] mbe: consider the `_` in 2024 an expression) - rust-lang#127159 (match lowering: Hide `Candidate` from outside the lowering algorithm) - rust-lang#128244 (Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck, remove some hacks) - rust-lang#128431 (Add myself as VxWorks target maintainer for reference) - rust-lang#128438 (Add special-case for [T, 0] in dropck_outlives) - rust-lang#128457 (Fix docs for OnceLock::get_mut_or_init) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#128244 - compiler-errors:move-clone-sugg, r=estebank Peel off explicit (or implicit) deref before suggesting clone on move error in borrowck, remove some hacks Also remove a heck of a lot of weird hacks in `suggest_cloning` that I don't think we should have around. I know this regresses tests, but I don't believe most of these suggestions were accurate, b/c: 1. They either produced type errors (e.g. turning `&x` into `x.clone()`) 2. They don't fix the issue 3. They fix the issue ostensibly, but introduce logic errors (e.g. cloning a `&mut Option<T>` to then `Option::take` out...) Most of the suggestions are still wrong, but they're not particularly *less* wrong IMO. Stacked on top of rust-lang#128241, which is an "obviously worth landing" subset of this PR. r? estebank
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Also remove a heck of a lot of weird hacks in
suggest_cloningthat I don't think we should have around.I know this regresses tests, but I don't believe most of these suggestions were accurate, b/c:
&xintox.clone())&mut Option<T>to thenOption::takeout...)Most of the suggestions are still wrong, but they're not particularly less wrong IMO.
Stacked on top of #128241, which is an "obviously worth landing" subset of this PR.
r? estebank