Function rustc_ty_utils::ty::adt_sized_constraint

fn adt_sized_constraint<'tcx>(
    tcx: TyCtxt<'tcx>,
    def_id: DefId,
) -> Option<EarlyBinder<'tcx, Ty<'tcx>>>

Calculates the Sized constraint.

In fact, there are only a few options for the types in the constraint: - an obviously-unsized type - a type parameter or projection whose sizedness can’t be known