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Parameters
Signature

Package contains no libraries

Functor building an implementation of the env structure given a totally-ordered, showable type.

Parameters

module Ord : Utility.OrderedShow

Signature

type name = Ord.t

The type of names.

type 'a t

The type of environments.

val pp : 
  (Ppx_deriving_runtime.Format.formatter -> 'a -> Ppx_deriving_runtime.unit) ->
  Ppx_deriving_runtime.Format.formatter ->
  'a t ->
  Ppx_deriving_runtime.unit

val show : 
  (Ppx_deriving_runtime.Format.formatter -> 'a -> Ppx_deriving_runtime.unit) ->
  'a t ->
  Ppx_deriving_runtime.string

val empty : 'a t

The empty environment.

val bind : 'a t -> (name * 'a) -> 'a t

Extend an environment with a new entry.

val unbind : 'a t -> name -> 'a t

Remove an entry from an environment.

val extend : 'a t -> 'a t -> 'a t

Extend an environment with another. Bindings from the right shadow bindings from the left.

val has : 'a t -> name -> bool

Whether a particular name is in an environment

val lookup : 'a t -> name -> 'a

Look up a name in an environment. Raise NotFound name if the name is not present.

val find : 'a t -> name -> 'a option

Look up a name in an environment. Return None if the name is not present.

module Dom = Utility.Set.Make(Ord)

Sets of names.

val domain : 'a t -> Dom.t

The domain of an environment

val range : 'a t -> 'a list

The range of an environment

val bindings : 'a t -> (name * 'a) list

val map : ('a -> 'b) -> 'a t -> 'b t

val iter : (name -> 'a -> unit) -> 'a t -> unit

val fold : (name -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b

val filter : (name -> 'a -> bool) -> 'a t -> 'a t

val filter_map : (name -> 'a -> 'b option) -> 'a t -> 'b t