72 lines
1.2 KiB
OCaml
72 lines
1.2 KiB
OCaml
(* TEMPORARY document *)
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(* An atom is a pair of a unique integer identity and a (not necessarily
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unique) string. *)
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type atom
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and t = atom
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[@@deriving show]
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val identity: atom -> int
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val hint: atom -> string
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(* Producing fresh atoms. *)
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val fresh: string -> atom
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val copy: atom -> atom
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(* Comparison of atoms. *)
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val equal: atom -> atom -> bool
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val compare: atom -> atom -> int
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val hash: atom -> int
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(* Sets. *)
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module Set : sig
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include Set.S with type elt = atom
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val disjoint: t -> t -> bool
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val union_many: ('a -> t) -> 'a list -> t
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(* Disjoint union. *)
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exception NonDisjointUnion of atom
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val disjoint_union: t -> t -> t
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val handle_NonDisjointUnion: ('a -> unit) -> 'a -> bool
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(* Sets of atoms form monoids under union and disjoint union. *)
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class ['z] union_monoid : object
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constraint 'z = t
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method zero: 'z
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method plus: 'z -> 'z -> 'z
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end
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class ['z] disjoint_union_monoid : object
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constraint 'z = t
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method zero: 'z
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method plus: 'z -> 'z -> 'z
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end
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val show: t -> string
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val print: out_channel -> t -> unit
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end
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(* Maps. *)
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module Map : sig
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include Map.S with type key = atom
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val domain: 'a t -> Set.t
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val codomain: ('a -> Set.t) -> 'a t -> Set.t
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end
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type renaming =
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atom Map.t
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