package core_kernel

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in-package search v0.2.0

Industrial strength alternative to OCaml's standard library

Install

dune-project

Dependency

sha256=9c4926888a5facda4f90fd0bbcd903caa3b94c04e1b9de624deb555ec85893ef

md5=0fd05be8bf5eabde5080e3c40b20092b

A Moption is a mutable option, like 'a option ref, but with a more efficient implementation; in particular, set_some does not allocate.

type 'a t

val sexp_of_t : 
  ('a -> Ppx_sexp_conv_lib.Sexp.t) ->
  'a t ->
  Ppx_sexp_conv_lib.Sexp.t

include Core_kernel.Invariant.S1 with type 'a t := 'a t

val invariant : ('a -> unit) -> 'a t -> unit

module Optional_syntax : 
  Core_kernel.Optional_syntax.S1
    with type 'a t := 'a t
    with type 'a value := 'a

val create : unit -> _ t

val is_none : _ t -> bool

val is_some : _ t -> bool

val get : 'a t -> 'a option

val get_some_exn : 'a t -> 'a

val unsafe_get : 'a t -> 'a

Does not check that is_some before unsafely accessing the stored value

val set : 'a t -> 'a option -> unit

val set_none : _ t -> unit

val set_some : 'a t -> 'a -> unit