{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"def.eval_explicit_discr(tcx,"}]}
                def.eval_explicit_discr(tcx, const_def_id).ok()
            if let ty::VariantDiscr::Explicit(const_def_id) = variant.discr {
            } else if let Some(discr) = repr_type.disr_incr(tcx, prev_discr) {