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(* Js_of_ocaml library
* http://www.ocsigen.org/js_of_ocaml/
* Copyright Pierre Chambart 2012.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, with linking exception;
* either version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*)
open! Import
type 'a t = < > Js.t
let obj = Js.Unsafe.global##._Object
let create () : 'a t = new%js obj
let add (t : 'a t) (k : Js.js_string Js.t) (v : 'a) =
(* '_' is added to avoid conflicts with objects methods *)
Js.Unsafe.set t (k##concat (Js.string "_")) v
let remove (t : 'a t) (k : Js.js_string Js.t) =
Js.Unsafe.delete t (k##concat (Js.string "_"))
let find (t : 'a t) (k : Js.js_string Js.t) : 'a Js.Optdef.t =
Js.Unsafe.get t (k##concat (Js.string "_"))
let keys (t : 'a t) : Js.js_string Js.t list =
let key_array : Js.js_string Js.t Js.js_array Js.t =
Js.Unsafe.global##._Object##keys t
in
let res = ref [] in
for i = 0 to pred key_array##.length do
let key =
Js.Optdef.get (Js.array_get key_array i) (fun () -> failwith "Jstable.keys")
in
res := key##substring 0 (pred key##.length) :: !res
done;
List.rev !res
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