package core_kernel

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in-package search v0.2.0

Module `Moption`Source

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

Sourcetype 'a t

Sourceval sexp_of_t : ('a -> Sexplib0.Sexp.t) -> 'a t -> Sexplib0.Sexp.t

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

Sourceval invariant : 'a Base__Invariant_intf.inv -> 'a t Base__Invariant_intf.inv

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

Sourceval create : unit -> _ t

Sourceval is_none : _ t -> bool

Sourceval is_some : _ t -> bool

Sourceval get : 'a t -> 'a option

Sourceval get_some_exn : 'a t -> 'a

Sourceval unsafe_get : 'a t -> 'a

Does not check that is_some before unsafely accessing the stored value

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

Sourceval set_none : _ t -> unit

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