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Rollup merge of #135364 - yotamofek:borrowck-diag-fix, r=compiler-errors

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Cleanup `suggest_binding_for_closure_capture_self` diag in borrowck

Mostly grammar fix/improvement, but also a small cleanup to use iterators instead of for loops for collecting into a vector.
This commit is contained in:
Matthias Krüger 2025-01-12 09:14:12 +01:00 • committed by GitHub
commit fcf81b8cc3
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3 changed files with 13 additions and 16 deletions
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23
compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs
View file

@ -2680,22 +2680,19 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> {
return;
}
let mut sugg = vec![];
let sm = self.infcx.tcx.sess.source_map();
if let Some(span) = finder.closure_arg_span {
sugg.push((sm.next_point(span.shrink_to_lo()).shrink_to_hi(), finder.suggest_arg));
}
for span in finder.closure_change_spans {
sugg.push((span, "this".to_string()));
}
for (span, suggest) in finder.closure_call_changes {
sugg.push((span, suggest));
}
let sugg = finder
.closure_arg_span
.map(|span| (sm.next_point(span.shrink_to_lo()).shrink_to_hi(), finder.suggest_arg))
.into_iter()
.chain(
finder.closure_change_spans.into_iter().map(|span| (span, "this".to_string())),
)
.chain(finder.closure_call_changes)
.collect();
err.multipart_suggestion_verbose(
"try explicitly pass `&Self` into the Closure as an argument",
"try explicitly passing `&Self` into the closure as an argument",
sugg,
Applicability::MachineApplicable,
);

2
compiler/rustc_errors/src/diagnostic.rs
View file

@ -880,7 +880,7 @@ impl<'a, G: EmissionGuarantee> Diag<'a, G> {
)
} }
/// Show a suggestion that has multiple parts to it, always as it's own subdiagnostic.
/// Show a suggestion that has multiple parts to it, always as its own subdiagnostic.
/// In other words, multiple changes need to be applied as part of this suggestion.
#[rustc_lint_diagnostics]
pub fn multipart_suggestion_verbose(

4
tests/ui/suggestions/issue-105761-suggest-self-for-closure.stderr
View file

@ -11,7 +11,7 @@ LL | self.qux();
LL | x(1);
| - immutable borrow later used here
|
help: try explicitly pass `&Self` into the Closure as an argument
help: try explicitly passing `&Self` into the closure as an argument
|
LL ~ let x = |this: &Self, v: i32| {
LL ~ this.bar();
@ -35,7 +35,7 @@ LL | self.qux();
LL | y();
| - immutable borrow later used here
|
help: try explicitly pass `&Self` into the Closure as an argument
help: try explicitly passing `&Self` into the closure as an argument
|
LL ~ let y = |this: &Self| {
LL ~ this.bar();