diff options
Diffstat (limited to 'library/libobject.ml')
| -rw-r--r-- | library/libobject.ml | 53 |
1 files changed, 15 insertions, 38 deletions
diff --git a/library/libobject.ml b/library/libobject.ml index 706e3991..caa03c85 100644 --- a/library/libobject.ml +++ b/library/libobject.ml @@ -8,18 +8,9 @@ open Libnames open Pp +open Util -(* The relax flag is used to make it possible to load files while ignoring - failures to incorporate some objects. This can be useful when one - wants to work with restricted Coq programs that have only parts of - the full capabilities, but may still be able to work correctly for - limited purposes. One example is for the graphical interface, that uses - such a limited Coq process to do only parsing. It loads .vo files, but - is only interested in loading the grammar rule definitions. *) - -let relax_flag = ref false;; - -let relax b = relax_flag := b;; +module Dyn = Dyn.Make(struct end) type 'a substitutivity = Dispose | Substitute of 'a | Keep of 'a | Anticipate of 'a @@ -40,7 +31,7 @@ let default_object s = { load_function = (fun _ _ -> ()); open_function = (fun _ _ -> ()); subst_function = (fun _ -> - Errors.anomaly (str "The object " ++ str s ++ str " does not know how to substitute!")); + CErrors.anomaly (str "The object " ++ str s ++ str " does not know how to substitute!")); classify_function = (fun obj -> Keep obj); discharge_function = (fun _ -> None); rebuild_function = (fun x -> x)} @@ -70,15 +61,14 @@ type dynamic_object_declaration = { dyn_discharge_function : object_name * obj -> obj option; dyn_rebuild_function : obj -> obj } -let object_tag = Dyn.tag -let object_has_tag = Dyn.has_tag +let object_tag (Dyn.Dyn (t, _)) = Dyn.repr t let cache_tab = (Hashtbl.create 17 : (string,dynamic_object_declaration) Hashtbl.t) let declare_object_full odecl = let na = odecl.object_name in - let (infun,outfun) = Dyn.create na in + let (infun, outfun) = Dyn.Easy.make_dyn na in let cacher (oname,lobj) = odecl.cache_function (oname,outfun lobj) and loader i (oname,lobj) = odecl.load_function i (oname,outfun lobj) and opener i (oname,lobj) = odecl.open_function i (oname,outfun lobj) @@ -107,36 +97,21 @@ let declare_object_full odecl = let declare_object odecl = try fst (declare_object_full odecl) - with e -> Errors.fatal_error (Errors.print e) (Errors.is_anomaly e) + with e -> CErrors.fatal_error (CErrors.print e) (CErrors.is_anomaly e) let declare_object_full odecl = try declare_object_full odecl - with e -> Errors.fatal_error (Errors.print e) (Errors.is_anomaly e) - -let missing_tab = (Hashtbl.create 17 : (string, unit) Hashtbl.t) + with e -> CErrors.fatal_error (CErrors.print e) (CErrors.is_anomaly e) (* this function describes how the cache, load, open, and export functions - are triggered. In relaxed mode, this function just return a meaningless - value instead of raising an exception when they fail. *) + are triggered. *) let apply_dyn_fun deflt f lobj = let tag = object_tag lobj in - try - let dodecl = - try - Hashtbl.find cache_tab tag - with Not_found -> - failwith "local to_apply_dyn_fun" in - f dodecl - with - Failure "local to_apply_dyn_fun" -> - if not (!relax_flag || Hashtbl.mem missing_tab tag) then - begin - Pp.msg_warning - (Pp.str ("Cannot find library functions for an object with tag " - ^ tag ^ " (a plugin may be missing)")); - Hashtbl.add missing_tab tag () - end; - deflt + let dodecl = + try Hashtbl.find cache_tab tag + with Not_found -> assert false + in + f dodecl let cache_object ((_,lobj) as node) = apply_dyn_fun () (fun d -> d.dyn_cache_function node) lobj @@ -158,3 +133,5 @@ let discharge_object ((_,lobj) as node) = let rebuild_object lobj = apply_dyn_fun lobj (fun d -> d.dyn_rebuild_function lobj) lobj + +let dump = Dyn.dump |