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open Decoders_util
module type S = sig
type value
type 'a encoder = 'a -> value
val string : string encoder
val int : int encoder
val float : float encoder
val bool : bool encoder
val null : value
val option : 'a encoder -> 'a option encoder
val list : 'a encoder -> 'a list encoder
val obj : (string * value) list encoder
val obj' : (value * value) list encoder
val value : value encoder
val encode_value : 'a encoder -> 'a -> value
val encode_string : 'a encoder -> 'a -> string
end
module type Encodeable = sig
type value
val to_string : value -> string
val of_string : string -> value
val of_int : int -> value
val of_float : float -> value
val of_bool : bool -> value
val null : value
val of_list : value list -> value
val of_key_value_pairs : (value * value) list -> value
end
module Make(E : Encodeable) : S with type value = E.value = struct
type value = E.value
type 'a encoder = 'a -> value
let string x = E.of_string x
let int x = E.of_int x
let float x = E.of_float x
let bool x = E.of_bool x
let null = E.null
let option encoder =
function
| None -> E.null
| Some x -> encoder x
let list encoder xs =
xs
|> My_list.map (fun x -> encoder x)
|> E.of_list
let obj' xs = E.of_key_value_pairs xs
let obj xs =
xs
|> List.map (fun (k, v) -> (E.of_string k, v))
|> E.of_key_value_pairs
let value x = x
let encode_value encoder x = encoder x
let encode_string encoder x = encoder x |> E.to_string
end