package core_kernel

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package core_kernel
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Module MoptionSource

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 -> 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
Sourceval invariant : ('a -> unit) -> 'a t -> unit
Sourcemodule Optional_syntax : Core_kernel.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
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