+ let owner = self.tcx.hir().enclosing_body_owner(expr.hir_id);
+ if let ty::Param(param) = expected_ty.kind()
+ && let Some(generics) = self.tcx.hir().get_generics(owner)
+ {
+ suggest_constraining_type_params(
+ self.tcx,
+ generics,
+ diag,
+ vec![(param.name.as_str(), "Clone", Some(clone_trait_did))].into_iter(),
+ );
+ } else {
+ self.suggest_derive(diag, &[(trait_ref.to_predicate(self.tcx), None, None)]);
+ }