X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Fsoftware%2Fcomponents%2Fng_refiner%2FnCicCoercion.mli;h=0d96a74074943192b3acf2859afc00cd6edda71d;hb=e603c19e82c160362587cb0bc578287c87122b90;hp=73c88005c54e951385d127af692fcae23860bba8;hpb=dcdbb979433a61e2ef2842d96604098728824416;p=helm.git

diff --git a/helm/software/components/ng_refiner/nCicCoercion.mli b/helm/software/components/ng_refiner/nCicCoercion.mli
index 73c88005c..0d96a7407 100644
--- a/helm/software/components/ng_refiner/nCicCoercion.mli
+++ b/helm/software/components/ng_refiner/nCicCoercion.mli
@@ -13,19 +13,27 @@
 
 type db
 
+class status :
+ object ('self)
+  method coerc_db: db
+  method set_coerc_db: db -> 'self
+  method set_coercion_status: status -> 'self
+ end
+
+val empty_db: db
+
 (* index (\x.c ?? x ??): A -> B
    index_coercion db c A B \arity_left(c ??x??) \position(x,??x??) 
 *)
 val index_coercion: 
-  db -> NCic.term -> NCic.term -> NCic.term -> int -> int -> db
+  #status as 'status ->
+   NCic.term -> NCic.term -> NCic.term -> int -> int -> 'status
 
   (* gets the old imperative coercion DB (list format) *)
-val index_old_db: CoercDb.coerc_db -> db -> db
-
-val empty_db : db
+val index_old_db: CoercDb.coerc_db -> (#status as 'status) -> 'status
 
 val look_for_coercion:
-    db ->
+    #status ->
     NCic.metasenv -> NCic.substitution -> NCic.context -> 
     (* inferred type, expected type *)
     NCic.term -> NCic.term ->