bjoernager/rust
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Provide structured suggestion for #![feature(foo)]

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```
error: `S2<'_>` is forbidden as the type of a const generic parameter
  --> $DIR/lifetime-in-const-param.rs:5:23
   |
LL | struct S<'a, const N: S2>(&'a ());
   |                       ^^
   |
   = note: the only supported types are integers, `bool` and `char`
help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types
   |
LL + #![feature(adt_const_params)]
   |
```

Fix #55941.
This commit is contained in:
Esteban Küber 2024-03-07 22:09:00 +00:00
parent 22e241e32e
commit 6c31f6ce12
98 changed files with 755 additions and 253 deletions
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15
compiler/rustc_passes/src/check_const.rs
View file

@ -155,16 +155,11 @@ impl<'tcx> CheckConstVisitor<'tcx> {
//
// FIXME(ecstaticmorse): Maybe this could be incorporated into `feature_err`? This
// is a pretty narrow case, however.
if tcx.sess.is_nightly_build() {
for gate in missing_secondary {
// FIXME: make this translatable
#[allow(rustc::diagnostic_outside_of_impl)]
#[allow(rustc::untranslatable_diagnostic)]
err.help(format!(
"add `#![feature({gate})]` to the crate attributes to enable"
));
}
}
tcx.disabled_nightly_features(
&mut err,
def_id.map(|id| tcx.local_def_id_to_hir_id(id)),
missing_secondary.into_iter().map(|gate| (String::new(), *gate)),
);
err.emit();
}