Extraction: fix a bit the extraction under modules

 Extraction under modules is highly experimental, and just work a bit.
 Don't expect too much of it. With this commit, I simply avoid a few
 "assert false" to occur when we are under modules. But things are
 still quite wrong, for instance with:

 Definition foo.
 Module M.
  Definition bar := foo.
  Recursive Extraction bar.

 Extraction of bar is ok, but foo isn't displayed, since extraction
 can't get it: Lib.contents_after doesn't mention it, it is probably
 in some frozen summary.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13281 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 3 insertions, 2 deletions

diff --git a/plugins/extraction/modutil.ml b/plugins/extraction/modutil.ml
index 4ed6e9a08..8bc98e452 100644
--- a/plugins/extraction/modutil.ml
+++ b/plugins/extraction/modutil.ml
@@ -185,7 +185,7 @@ let signature_of_structure s =
 (*s Searching one [ml_decl] in a [ml_structure] by its [global_reference] *)
 
 let get_decl_in_structure r struc =
-  try 
+  try
     let base_mp,ll = labels_of_ref r in
     if not (at_toplevel base_mp) then error_not_visible r;
     let sel = List.assoc base_mp struc in
@@ -200,7 +200,8 @@ let get_decl_in_structure r struc =
 		  | MEstruct (_,sel) -> go ll sel
 		  | _ -> error_not_visible r
     in go ll sel
-  with Not_found -> assert false
+  with Not_found ->
+    anomaly "reference not found in extracted structure"
 
 
 (*s Optimization of a [ml_structure]. *)