Remove ClosedModule from libstack

Seems unused and probably holds a lot of pointers.

3 files changed, 1 insertions, 10 deletions

diff --git a/library/lib.ml b/library/lib.ml
index a20de55bf6..5e9d2baa1d 100644
--- a/library/lib.ml
+++ b/library/lib.ml
@@ -26,7 +26,6 @@ type node =
   | Leaf of obj
   | CompilingLibrary of object_prefix
   | OpenedModule of is_type * export * object_prefix * Summary.frozen
-  | ClosedModule  of library_segment
   | OpenedSection of object_prefix * Summary.frozen
   | ClosedSection of library_segment
 
@@ -74,9 +73,6 @@ let classify_segment seg =
 	     | Anticipate o' ->
 		 clean (substl, keepl, o'::anticipl) stk)
     | (_,ClosedSection _) :: stk -> clean acc stk
-    (* LEM; TODO: Understand what this does and see if what I do is the
-                  correct thing for ClosedMod(ule|type) *)
-    | (_,ClosedModule _) :: stk -> clean acc stk
     | (_,OpenedSection _) :: _ -> user_err Pp.(str "there are still opened sections")
     | (_,OpenedModule (ty,_,_,_)) :: _ ->
       user_err ~hdr:"Lib.classify_segment"
@@ -307,7 +303,6 @@ let end_mod is_type =
   in
   let (after,mark,before) = split_lib_at_opening oname in
   lib_state := { !lib_state with lib_stk = before };
-  add_entry oname (ClosedModule (List.rev (mark::after)));
   let prefix = !lib_state.path_prefix in
   recalc_path_prefix ();
   (oname, prefix, fs, after)
@@ -555,7 +550,7 @@ let discharge_item ((sp,_ as oname),e) =
   match e with
   | Leaf lobj ->
       Option.map (fun o -> (basename sp,o)) (discharge_object (oname,lobj))
-  | ClosedSection _ | ClosedModule _ -> None
+  | ClosedSection _ -> None
   | OpenedSection _ | OpenedModule _ | CompilingLibrary _ ->
       anomaly (Pp.str "discharge_item.")
 
@@ -589,7 +584,6 @@ let freeze ~marshallable =
         | n, (CompilingLibrary _ as x) -> Some (n,x)
         | n, OpenedModule (it,e,op,_) ->
                Some(n,OpenedModule(it,e,op,Summary.empty_frozen))
-        | n, ClosedModule _ -> Some (n,ClosedModule [])
         | n, OpenedSection (op, _) ->
                Some(n,OpenedSection(op,Summary.empty_frozen))
         | n, ClosedSection _ -> Some (n,ClosedSection []))
diff --git a/library/lib.mli b/library/lib.mli
index 5abfccfc7d..2915a5fd64 100644
--- a/library/lib.mli
+++ b/library/lib.mli
@@ -23,7 +23,6 @@ type node =
   | Leaf of Libobject.obj
   | CompilingLibrary of Libnames.object_prefix
   | OpenedModule of is_type * export * Libnames.object_prefix * Summary.frozen
-  | ClosedModule  of library_segment
   | OpenedSection of Libnames.object_prefix * Summary.frozen
   | ClosedSection of library_segment
 
diff --git a/printing/prettyp.ml b/printing/prettyp.ml
index fd7135b6a6..6911013464 100644
--- a/printing/prettyp.ml
+++ b/printing/prettyp.ml
@@ -663,8 +663,6 @@ let gallina_print_library_entry env sigma with_values ent =
         Some (str " >>>>>>> Library " ++ DirPath.print obj_dir)
     | (oname,Lib.OpenedModule _) ->
 	Some (str " >>>>>>> Module " ++ pr_name oname)
-    | (oname,Lib.ClosedModule _) ->
-        Some (str " >>>>>>> Closed Module " ++ pr_name oname)
 
 let gallina_print_context env sigma with_values =
   let rec prec n = function