49 lines
1.5 KiB
OCaml
49 lines
1.5 KiB
OCaml
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(** This modules manages unique identifiers,
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[fresh] generates an identifier from a name
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[name] returns a unique name from an identifier. *)
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(** The (abstract) type of identifiers*)
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type ident
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(** Type to be used for local variables *)
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type var_ident = ident
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(** Comparision on idents with the same properties as [Pervasives.compare] *)
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val ident_compare : ident -> ident -> int
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(** Get the source name from an identifier*)
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val sourcename : ident -> string
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(** Get the full name of an identifier (it is guaranteed to be unique) *)
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val name : ident -> string
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(** [set_sourcename id v] returns id with its source name changed to v. *)
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val set_sourcename : ident -> string -> ident
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(** [fresh n] returns a fresh identifier with source name n *)
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val fresh : string -> ident
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(** [ident_of_name n] returns an identifier corresponding
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to a _source_ variable (do not use it for generated variables). *)
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val ident_of_name : string -> ident
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(** Resets the sets that makes sure that idents are mapped to unique
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identifiers. Should be called when scoping a new function. *)
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val new_function : unit -> unit
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(** Maps taking an identifier as a key. *)
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module Env :
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sig
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include (Map.S with type key = ident)
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val append : 'a t -> 'a t -> 'a t
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val union : 'a t -> 'a t -> 'a t
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val diff : 'a t -> 'b t -> 'a t
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val partition : (key -> bool) -> 'a t -> 'a t * 'a t
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end
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(** A set of identifiers. *)
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module IdentSet :
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sig
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include (Set.S with type elt = ident)
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val fprint_t : Format.formatter -> t -> unit
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end
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