Module type Console.Io

type 'a t
type 'a fmt
type out_channel
include Core.Monad.S with type 'a t := 'a t
val return : 'a 'i 'p 'q. 'a -> 'a t

Convert a value to a t.

val map : 'a 'b 'i 'j 'p 'q. 'a t -> f:('a -> 'b) -> 'b t

Transforms the contents of a t.

val bind : 'a 'b 'i 'j 'k 'p 'q. 'a t -> f:('a -> 'b t) -> 'b t

Sequences computations. bind t ~f computes f v for value(s) v in t. Well-behaved monads satisfy these "laws" (where ( >>= ) is the infix bind operator):

  • map t ~f is equivalent to bind t ~f:(fun x -> return (f x))
  • return x >>= f is equivalent to f x
  • t >>= return is equivalent to t
  • (t >>= f) >>= g is equivalent to t >>= fun x -> f x >>= g
val join : 'a 'i 'j 'k 'p 'q. 'a t t -> 'a t

Combines nested t into just one layer. Equivalent to bind t ~f:Fn.id.

val ignore_m : 'a 'i 'j 'p 'q. 'a t -> unit t

Ignores contained values of t. Equivalent to map t ~f:ignore.

val all : 'a 'i 'p 'q. 'a t list -> 'a list t

Combines a list of t.

val all_unit : 'i 'p 'q. unit t list -> unit t

Combines a list of t whose contents are unimportant.

val (>>=) : 'a 'b 'i 'j 'k 'p 'q. 'a t -> ('a -> 'b t) -> 'b t

Infix bind.

val (>>|) : 'a 'b 'i 'j 'p 'q. 'a t -> ('a -> 'b) -> 'b t

Infix map.

module Monad_infix : sig ... end
module Let_syntax : sig ... end
val output_string : out_channel -> string -> unit
val output : out_channel -> buf:bytes -> pos:int -> len:int -> unit
val stderr : out_channel
val stdout : out_channel
val flush : out_channel -> unit t
val print_string : string -> unit
val fprintf : attrs:string -> out_channel -> 'a fmt -> 'a
val fold_left : 'a Core.List.t -> init:'b -> f:('b -> 'a -> 'b t) -> 'b t
val stdout_isatty : unit -> bool t
val capable : unit -> bool t