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Don't suggest deref macro since it's unstable

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This commit is contained in:
Michael Goulet 2024-03-20 18:22:21 -04:00
parent 2d633317f3
commit a4db3ffdcb
2 changed files with 6 additions and 5 deletions
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7
compiler/rustc_resolve/src/late/diagnostics.rs
View File

@ -1592,18 +1592,23 @@ fn smart_resolve_context_dependent_help(
match (res, source) {
(
Res::Def(DefKind::Macro(MacroKind::Bang), _),
Res::Def(DefKind::Macro(MacroKind::Bang), def_id),
PathSource::Expr(Some(Expr {
kind: ExprKind::Index(..) | ExprKind::Call(..), ..
}))
| PathSource::Struct,
) => {
// Don't suggest macro if it's unstable.
let suggestable = def_id.is_local()
|| self.r.tcx.lookup_stability(def_id).map_or(true, |s| s.is_stable());
err.span_label(span, fallback_label.to_string());
// Don't suggest `!` for a macro invocation if there are generic args
if path
.last()
.is_some_and(|segment| !segment.has_generic_args && !segment.has_lifetime_args)
&& suggestable
{
err.span_suggestion_verbose(
span.shrink_to_hi(),

4
tests/ui/unboxed-closures/unboxed-closures-type-mismatch-closure-from-another-scope.stderr
View File

@ -32,10 +32,6 @@ error[E0423]: expected function, found macro `deref`
LL | deref(p);
| ^^^^^ not a function
|
help: use `!` to invoke the macro
|
LL | deref!(p);
| +
help: use the `.` operator to call the method `Deref::deref` on `&&()`
|
LL - deref(p);