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(* $Id$ *)
(*i*)
open Names
(*i*)
(* [Libobject] declares persistent objects given with three methods:
- a loading function, specifying what to do when the object is loaded
from the disk;
- a caching function specifying how to import the object in the current
scope of theory modules;
- a specification function, to extract its specification when writing
the specification of a module to the disk (.vi) *)
type 'a object_declaration = {
load_function : 'a -> unit;
cache_function : section_path * 'a -> unit;
specification_function : 'a -> 'a }
(*s given the object-name, the "loading" function, the "caching" function,
and the "specification" function, the function [declare_object]
will hand back two functions, the "injection" and "projection"
functions for dynamically typed library-objects. *)
type obj
val declare_object :
(string * 'a object_declaration) -> ('a -> obj) * (obj -> 'a)
val object_tag : obj -> string
val load_object : obj -> unit
val cache_object : (section_path * obj) -> unit
val extract_object_specification : obj -> obj
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