bjoernager/rust
bjoernager/rust
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Use structured suggestion when telling user about for<'a>

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```
error[E0637]: `&` without an explicit lifetime name cannot be used here
  --> $DIR/E0637.rs:13:13
   |
LL |     T: Into<&u32>,
   |             ^ explicit lifetime name needed here
   |
help: consider introducing a higher-ranked lifetime here
   |
LL |     T: for<'a> Into<&'a u32>,
   |        +++++++       ++
```
This commit is contained in:
Esteban Küber 2023-06-30 00:30:50 +00:00
parent 54d6738a8d
commit 7d33094d3a
17 changed files with 157 additions and 64 deletions
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10
compiler/rustc_resolve/src/late.rs
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@ -1632,9 +1632,13 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
..
} = &rib.kind
{
diag.span_help(
*span,
"consider introducing a higher-ranked lifetime here with `for<'a>`",
diag.multipart_suggestion(
"consider introducing a higher-ranked lifetime here",
vec![
(span.shrink_to_lo(), "for<'a> ".into()),
(lifetime.ident.span.shrink_to_hi(), "'a ".into()),
],
Applicability::MachineApplicable,
);
break;
}