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Rollup merge of #105349 - compiler-errors:point-at-assoc-ct-fn-ptr-arg, r=cjgillot

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Point at args in associated const fn pointers

Tiny follow-up to #105201, not so sure it's worth it but 🤷

The UI test example is a bit more compelling when it's `GlUniformScalar::FACTORY`

r? `@cjgillot`
This commit is contained in:
Matthias Krüger 2022-12-06 16:54:56 +01:00 committed by GitHub
commit 4f919e4628
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2 changed files with 7 additions and 9 deletions
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10
compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs
View File

@ -1918,15 +1918,11 @@ fn point_at_arg_if_possible(
receiver: Option<&'tcx hir::Expr<'tcx>>,
args: &'tcx [hir::Expr<'tcx>],
) -> bool {
// Do not call `fn_sig` on non-functions.
if !matches!(
self.tcx.def_kind(def_id),
DefKind::Fn | DefKind::AssocFn | DefKind::Variant | DefKind::Ctor(..)
) {
let ty = self.tcx.type_of(def_id);
if !ty.is_fn() {
return false;
}
let sig = self.tcx.fn_sig(def_id).skip_binder();
let sig = ty.fn_sig(self.tcx).skip_binder();
let args_referencing_param: Vec<_> = sig
.inputs()
.iter()

6
src/test/ui/suggestions/assoc-const-as-fn.stderr
View File

@ -1,8 +1,10 @@
error[E0277]: the trait bound `T: GlUniformScalar` is not satisfied
--> $DIR/assoc-const-as-fn.rs:14:5
--> $DIR/assoc-const-as-fn.rs:14:40
|
LL | <T as GlUniformScalar>::FACTORY(1, value);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `GlUniformScalar` is not implemented for `T`
| ------------------------------- ^^^^^ the trait `GlUniformScalar` is not implemented for `T`
| |
| required by a bound introduced by this call
|
help: consider further restricting this bound
|