Module Plebeia.ResultSource

1 Result monad

include Monad.S2 with type ('a, 'b) t = ('a, 'b) result
Sourcetype ('a, 'b) t = ('a, 'b) result
Sourceval return : 'a -> ('a, 'z) t
Sourceval bind : ('a, 'z) t -> ('a -> ('b, 'z) t) -> ('b, 'z) t
Sourceval map : ('a -> 'b) -> ('a, 'z) t -> ('b, 'z) t
Sourceval mapM : ('a -> ('b, 'z) t) -> 'a list -> ('b list, 'z) t
Sourceval mapM_ : ('a -> (unit, 'z) t) -> 'a list -> (unit, 'z) t
Sourceval iterM : ('a -> (unit, 'z) t) -> 'a list -> (unit, 'z) t

alias of mapM_

Sourceval fold_leftM : ('a -> 'b -> ('a, 'z) t) -> 'a -> 'b list -> ('a, 'z) t
Sourceval parseM : ('a -> 'b list -> ('a * 'b list, 'error) t) -> 'a -> 'b list -> ('a, 'error) t
Sourcemodule Infix : sig ... end
Sourcemodule Syntax : sig ... end
Sourceval map_error : ('err1 -> 'err2) -> ('a, 'err1) t -> ('a, 'err2) t
Sourceval from_Ok : ('a, _) t -> 'a

It raises Failure _ when the argument is Error _.

Sourceval from_Error : (_, 'e) t -> 'e

It raises Failure _ when the argument is Ok _.

Sourceval default : ('a, 'e) t -> ('e -> 'a) -> 'a

Error recovery

Sourceval errorf : ('a, unit, string, ('b, string) t) format4 -> 'a

Printf interface to produce a string error