{"ast_node_type":"other","tokens":[{"end":20,"kind":"keyword","start":0,"text":"match"}]}
        match self {
    pub fn ty(&self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> {
            NullOp::SizeOf | NullOp::AlignOf | NullOp::OffsetOf(_) => tcx.types.usize,