{"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"match"}]}
        match *vdata {
    pub fn from_ast(vdata: &ast::VariantData) -> Option<(CtorKind, NodeId)> {
            ast::VariantData::Tuple(_, node_id) => Some((CtorKind::Fn, node_id)),