Function rustc_trait_selection::traits::util::impl_subject_and_oblig

pub fn impl_subject_and_oblig<'a, 'tcx>(
    selcx: &mut SelectionContext<'a, 'tcx>,
    param_env: ParamEnv<'tcx>,
    impl_def_id: DefId,
    impl_substs: SubstsRef<'tcx>
) -> (ImplSubject<'tcx>, impl Iterator<Item = PredicateObligation<'tcx>>)

Instantiate all bound parameters of the impl subject with the given substs, returning the resulting subject and all obligations that arise. The obligations are closed under normalization.