From a900a71108e7011bfa6f22d491654c9098c615e0 Mon Sep 17 00:00:00 2001
From: Stefano Zacchiroli <zack@upsilon.cc>
Date: Tue, 8 Feb 2005 17:28:21 +0000
Subject: [PATCH] added a missing unchecked_to_frozen (fixes a Not_found
 exception while type checking without trust)

---
 .../cic_proof_checking/cicEnvironment.ml      | 37 +++++++++++--------
 1 file changed, 22 insertions(+), 15 deletions(-)

diff --git a/helm/ocaml/cic_proof_checking/cicEnvironment.ml b/helm/ocaml/cic_proof_checking/cicEnvironment.ml
index 5c1daa137..05467185b 100644
--- a/helm/ocaml/cic_proof_checking/cicEnvironment.ml
+++ b/helm/ocaml/cic_proof_checking/cicEnvironment.ml
@@ -320,7 +320,7 @@ module Cache :
     (*******************************************************************
       TASSI: invariant
       we need, in the universe generation phase, to traverse objects
-      that are not jet committed, so we search them in the frozen list.
+      that are not yet committed, so we search them in the frozen list.
       Only uncommitted objects without a universe file (see the assertion) 
       can be searched with method
     *******************************************************************)
@@ -556,23 +556,29 @@ let find_or_add_to_unchecked uri =
 (* the replacement ugraph must be the one returned by the       *)
 (* typechecker, restricted with the CicUnivUtils.clean_and_fill *)
 let set_type_checking_info ?(replace_ugraph=None) uri =
-  if Cache.can_be_cooked uri && replace_ugraph <> None then
-    invalid_arg (
+(*
+  if not (Cache.can_be_cooked uri) && replace_ugraph <> None then begin
+    prerr_endline (
       "?replace_ugraph must be None if you are not committing an "^
       "object that has a universe graph associated "^
       "(can happen only in the fase of universes graphs generation).");
-  if not (Cache.can_be_cooked uri) && replace_ugraph = None then
-    invalid_arg (
-      "?replace_ugraph must be (Some ugraph) when committing an object that "^
-      "has no associated universe graph. If this is in make_univ phase you "^
-      "should drop this exception and let univ_make commit thi object with "^
-      "proper arguments");
-  begin
-    match replace_ugraph with 
-	None -> ()
-      | Some g -> Cache.hack_univ uri g
-  end;
-  Cache.frozen_to_cooked uri
+    assert false
+  else
+*)
+  match Cache.can_be_cooked uri, replace_ugraph with
+  | true, Some _
+  | false, None ->
+      prerr_endline (
+        "?replace_ugraph must be (Some ugraph) when committing an object that "^
+        "has no associated universe graph. If this is in make_univ phase you "^
+        "should drop this exception and let univ_make commit thi object with "^
+        "proper arguments");
+      assert false
+  | _ ->
+      (match replace_ugraph with 
+      | None -> ()
+      | Some g -> Cache.hack_univ uri g);
+      Cache.frozen_to_cooked uri
 ;;
 
 (* fetch, unfreeze and commit an uri to the cacheOfCookedObjects and
@@ -632,6 +638,7 @@ let is_type_checked ?(trust=true) base_univ uri =
         CheckedObj ( o, CicUniv.merge_ugraphs u base_univ )
     else
       let o,u = find_or_add_to_unchecked uri in
+      Cache.unchecked_to_frozen uri;
         UncheckedObj o
 ;;
 
-- 
2.39.2