module SGState:Computation.OptionRef
(
Project.Datatype.Imperative
(
sig
include SGraph
val name :string
end
)
)
(
sig
val name :string
val dependencies :Project.Computation.t list
end
)
include Computation.REF_OUTPUT
val memo : ?change:(data -> data) -> (unit -> data) -> data
None
),
it is possible to change with change
.val map : (data -> data) -> data option
val may : (data -> unit) -> unit
val get_option : unit -> data option