Module type Parameter_sig.Collection

module type Collection = sig .. end

Common signature to all collections.

include Parameter_sig.S

A collection is a standard command line parameter.

type elt

Element in the collection.

val is_empty : unit -> bool

Is the collection empty?

val iter : (elt -> unit) -> unit

Iterate over all the elements of the collection.

val fold : (elt -> 'a -> 'a) -> 'a -> 'a

Fold over all the elements of the collection.

val add : elt -> unit

Add an element to the collection

module As_string: Parameter_sig.String

A collection is a standard string parameter

module Category: Parameter_sig.Collection_category  with type elt = elt

Categories for this collection.