Source file `node.ml`

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(*****************************************************************************)
(*                                                                           *)
(*  Copyright (C) 2026 Yves Ndiaye                                           *)
(*                                                                           *)
(* This Source Code Form is subject to the terms of the Mozilla Public       *)
(* License, v. 2.0. If a copy of the MPL was not distributed with this       *)
(* file, You can obtain one at https://mozilla.org/MPL/2.0/.                 *)
(*                                                                           *)
(*****************************************************************************)

(** Operations on a query node. *)

(** type of a query node. *)
type t =
  | Substring of string
  | Field of (string, bool, int, int64, float) Field.t

(** [substring s] is [Substring s]. *)
let substring s = Substring s

(** [field f] is [Field f] . *)
let field field = Field field

let to_string = function
  | Substring s ->
      s
  | Field field ->
      Field.to_string field

let to_sexp = function
  | Substring s ->
      Util.quote s
  | Field field ->
      Field.to_sexp field