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factor out maybe_suggest_unsized_generics

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This commit is contained in:
Taylor Yu 2021-05-31 20:46:58 -05:00
parent ce982a35e1
commit 2862f08b79
1 changed files with 17 additions and 1 deletions
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18
compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
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@ -1088,6 +1088,13 @@ trait InferCtxtPrivExt<'tcx> {
obligation: &PredicateObligation<'tcx>,
);
fn maybe_suggest_unsized_generics(
&self,
err: &mut DiagnosticBuilder<'tcx>,
span: Span,
node: Node<'hir>,
);
fn is_recursive_obligation(
&self,
obligated_types: &mut Vec<&ty::TyS<'tcx>>,
@ -1774,6 +1781,15 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> {
(Some(node), true) => node,
_ => return,
};
self.maybe_suggest_unsized_generics(err, span, node);
}
fn maybe_suggest_unsized_generics(
&self,
err: &mut DiagnosticBuilder<'tcx>,
span: Span,
node: Node<'hir>,
) {
let generics = match node.generics() {
Some(generics) => generics,
None => return,
@ -1792,7 +1808,7 @@ impl<'a, 'tcx> InferCtxtPrivExt<'tcx> for InferCtxt<'a, 'tcx> {
{
continue;
}
debug!("suggest_unsized_bound_if_applicable: param={:?}", param);
debug!("maybe_suggest_unsized_generics: param={:?}", param);
match node {
hir::Node::Item(
item