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|
@BEGIN_FROM_4_08_0@
include Stdlib.Result
@END_FROM_4_08_0@
@BEGIN_BEFORE_4_08_0@
type ('a, 'e) t = ('a, 'e) Stdcompat__pervasives.result =
| Ok of 'a
| Error of 'e
let ok v = Ok v
let error e = Error e
let value r ~default =
match r with
| Ok v -> v
| Error _ -> default
let get_ok r =
match r with
| Ok v -> v
| Error _ -> invalid_arg "result is Error _"
let get_error r =
match r with
| Ok _ -> invalid_arg "result is Ok _"
| Error e -> e
let bind r f =
match r with
| Ok v -> f v
| Error e -> Error e
let join r =
match r with
| Ok v -> v
| Error e -> Error e
let map f r =
match r with
| Ok v -> Ok (f v)
| Error e -> Error e
let map_error f r =
match r with
| Ok v -> Ok v
| Error e -> Error (f e)
let fold ~ok ~error r =
match r with
| Ok v -> ok v
| Error e -> error e
let iter f r =
match r with
| Ok v -> f v
| Error _ -> ()
let iter_error f r =
match r with
| Ok _ -> ()
| Error e -> f e
let is_ok e =
match e with
| Ok _ -> true
| Error _ -> false
let is_error e =
match e with
| Ok _ -> false
| Error _ -> true
let equal ~ok ~error r r' =
match r, r' with
| Ok v, Ok v' -> ok v v'
| Error e, Error e' -> error e e'
| Ok _, Error _
| Error _, Ok _ -> false
let compare ~ok ~error r r' =
match r, r' with
| Ok v, Ok v' -> ok v v'
| Ok _, Error _ -> -1
| Error _, Ok _ -> 1
| Error e, Error e' -> error e e'
let to_option r =
match r with
| Ok v -> Some v
| Error _ -> None
let to_list r =
match r with
| Ok v -> [v]
| Error _ -> []
let to_seq r =
match r with
| Ok v -> fun () -> Stdcompat__seq.Cons (v, Stdcompat__seq.empty)
| Error _ -> Stdcompat__seq.empty
@END_BEFORE_4_08_0@
|
