package mtl

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Module Mtl.Tree_monad

type 'a tree =
  1. | Leaf of 'a
  2. | Node of 'a tree * 'a tree
type ('x, 'a) result = 'a tree option
type ('x, 'a) result_exn = 'a tree
include Monad.S with type ('x, 'a) result := ('x, 'a) result and type ('x, 'a) result_exn := ('x, 'a) result_exn
include Monad.BASE with type ('x, 'a) result := ('x, 'a) result with type ('x, 'a) result_exn := ('x, 'a) result_exn
type ('x, 'a) m
val unit : 'a -> ('x, 'a) m
val bind : ('x, 'a) m -> ('a -> ('x, 'b) m) -> ('x, 'b) m
val run : ('x, 'a) m -> ('x, 'a) result
val run_exn : ('x, 'a) m -> ('x, 'a) result_exn
val zero : unit -> ('x, 'a) m
val plus : ('x, 'a) m -> ('x, 'a) m -> ('x, 'a) m
val (>>=) : ('x, 'a) m -> ('a -> ('x, 'b) m) -> ('x, 'b) m
val (>>) : ('x, 'a) m -> ('x, 'b) m -> ('x, 'b) m
val join : ('x, ('x, 'a) m) m -> ('x, 'a) m
val apply : ('x, 'a -> 'b) m -> ('x, 'a) m -> ('x, 'b) m
val lift : ('a -> 'b) -> ('x, 'a) m -> ('x, 'b) m
val lift2 : ('a -> 'b -> 'c) -> ('x, 'a) m -> ('x, 'b) m -> ('x, 'c) m
val (>=>) : ('a -> ('x, 'b) m) -> ('b -> ('x, 'c) m) -> 'a -> ('x, 'c) m
val do_when : bool -> ('x, unit) m -> ('x, unit) m
val do_unless : bool -> ('x, unit) m -> ('x, unit) m
val forever : (unit -> ('x, 'a) m) -> ('x, 'b) m
val sequence : ('x, 'a) m list -> ('x, 'a list) m
val sequence_ : ('x, 'a) m list -> ('x, unit) m
val guard : bool -> ('x, unit) m
val sum : ('x, 'a) m list -> ('x, 'a) m
module T (Wrapped : Monad.S) : sig ... end