Module Parameter_category

module Parameter_category: sig .. end

Category for parameter collections. A category groups together a set of possible values of a given type for some parameters. It may be created once and used several times.

type 'a t

\tau t is the type of a category for the type \tau.

type 'a accessor = <

	`fold : 'acc. ('a -> 'acc -> 'acc) -> 'acc -> 'acc;`
	`mem : 'a -> bool;`

Type explaining how to manipulate the elements of the category.

val create : string ->
       'a Type.t ->
       register:bool ->
       State.t list -> 'a accessor -> 'a t

create name ty ~register states access creates a category of the given name for the given type. No category with such a name for the same type must be already registered. If register, save the category for further re-use. states is a list of states which the category is based upon. access is how to manipulate this category.

val copy_and_rename : string -> register:bool -> 'a t -> 'a t

copy_and_rename s ~register c renames the category c into s and returns the new built category which is registered according to register.

val use : State.t -> 'a t -> unit

use s c indicates that the state s depends on the category c.

val get_name : 'a t -> string

Name of the category.

val get_fold : 'a t -> ('a -> 'acc -> 'acc) -> 'acc -> 'acc

Fold over the elements of the given category.

val get_mem : 'a t -> 'a -> bool

Is the given element present in the category?