bjoernager/rust
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Use chaining in DiagnosticBuilder construction.

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To avoid the use of a mutable local variable, and because it reads more
nicely.
This commit is contained in:
Nicholas Nethercote 2024-01-03 16:00:29 +11:00
parent b1b9278851
commit 589591efde
22 changed files with 223 additions and 369 deletions
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5
compiler/rustc_infer/src/infer/error_reporting/note.rs
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@ -367,9 +367,8 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
&trace.cause.code().peel_derives()
{
let span = *span;
let mut err = self.report_concrete_failure(placeholder_origin, sub, sup);
err.span_note(span, "the lifetime requirement is introduced here");
err
self.report_concrete_failure(placeholder_origin, sub, sup)
.span_note_mv(span, "the lifetime requirement is introduced here")
} else {
unreachable!(
"control flow ensures we have a `BindingObligation` or `ExprBindingObligation` here..."