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type t = {type_: string; attributes: Value.value BatMap.String.t}
let malformed_value () =
Condition.condition "malformed-tuple-value" "A tuple field did not conform to what was expected"
Condition.empty
let bencode_of_value = function
| Value.String s -> Encoding.Bencode.Tagged ('s', Encoding.Bencode.String s)
| Value.Integer n -> Encoding.Bencode.Tagged ('i', Encoding.Bencode.Int n)
let value_of_bencode = function
| Encoding.Bencode.Tagged ('s', Encoding.Bencode.String s) -> Ok (Value.String s)
| Encoding.Bencode.Tagged ('i', Encoding.Bencode.Int n) -> Ok (Value.Integer n)
| _ -> Error (malformed_value ())
module rec Representation : (Encoding.Record.S with type t = t) = Encoding.Record.Make (Body)
and Body : Encoding.Record.BODY = struct
type nonrec t = t
let tag = 'T'
let malformed = malformed_value
let fields {type_; attributes} =
[ "type", Encoding.Bencode.String type_;
( "attributes",
Encoding.Bencode.Dict
( BatMap.String.enum attributes
|> BatEnum.fold (fun acc (name, value) -> (name, bencode_of_value value) :: acc) [] ) ) ]
let of_fields data =
let open Utilities.Result in
let* type_ = Encoding.Bencode.field "type" data |> fmap Encoding.Bencode.as_string in
let* kvs = Encoding.Bencode.field "attributes" data |> fmap Encoding.Bencode.as_dict in
kvs
|> List.map (fun (name, v) -> value_of_bencode v |> Result.map (fun v -> name, v))
|> Utilities.List.sequence
|> Result.map (fun kvs -> {type_; attributes= BatMap.String.of_list kvs})
end
let hash tuple = Representation.to_blob tuple |> Hash.hash_of_blob
let to_string {attributes; _} =
BatMap.String.bindings attributes
|> List.map (fun (a, v) -> a ^ "=" ^ Value.to_string v)
|> String.concat " "
|
