1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
(* Js_of_ocaml
* http://www.ocsigen.org
* Copyright Grégoire Henry 2010.
*
* 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 Js
class type json = object
method parse: 'a. js_string t -> 'a meth
method parse_:
'a 'b 'c 'd. js_string t ->
('b t, js_string t -> 'c -> 'd) meth_callback -> 'a meth
method stringify: 'a. 'a -> js_string t meth
(* Beware that this is only works when the function argument
expects exactly two arguments (no curryfication is performed). *)
method stringify_:
'a 'b 'c 'd. 'a ->
(js_string t -> 'c -> 'd) -> js_string t meth
end
external get_json : unit -> json t = "caml_json"
let json = get_json ()
external unsafe_equals: 'a -> 'b -> bool = "caml_js_equals"
external to_MlString: js_string t -> 'a t = "caml_js_to_string"
external to_jsstring: 'a t -> js_string t = "caml_js_from_string"
external to_byte_MlString: js_string t -> 'a t = "caml_js_to_byte_string"
external to_byte_jsstring: 'a t -> js_string t = "caml_js_from_byte_string"
let input_reviver =
let reviver this key value =
if unsafe_equals (typeof value) (typeof (string "foo")) then
to_byte_MlString (Unsafe.coerce value)
else
value in
wrap_meth_callback reviver
let unsafe_input s = json##parse_ (s, input_reviver)
let mlString_constr = Unsafe.variable "MlString"
let output_reviver key value =
if instanceof value mlString_constr then
to_byte_jsstring (Unsafe.coerce value)
else
value
let output obj = json##stringify_ (obj, output_reviver)
|
