X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_refiner%2FnCicCoercion.mli;h=ca65aa953b9edcdf2d6dd28782107d06e3d0cd66;hb=ee9a771a3cf2124ef65906ae75eb0ba7e2e4303b;hp=0d96a74074943192b3acf2859afc00cd6edda71d;hpb=e603c19e82c160362587cb0bc578287c87122b90;p=helm.git

diff --git a/helm/software/components/ng_refiner/nCicCoercion.mli b/helm/software/components/ng_refiner/nCicCoercion.mli
index 0d96a7407..ca65aa953 100644
--- a/helm/software/components/ng_refiner/nCicCoercion.mli
+++ b/helm/software/components/ng_refiner/nCicCoercion.mli
@@ -17,7 +17,7 @@ class status :
  object ('self)
   method coerc_db: db
   method set_coerc_db: db -> 'self
-  method set_coercion_status: status -> 'self
+  method set_coercion_status: <coerc_db: db; ..> -> 'self
  end
 
 val empty_db: db
@@ -40,3 +40,8 @@ val look_for_coercion:
       (* enriched metasenv, new term, its type, metavriable to
        * be unified with the old term *)
       (NCic.metasenv * NCic.term * NCic.term * NCic.term) list
+
+(* returns (coercion,arity,arg) *)
+val match_coercion:
+ #status -> metasenv:NCic.metasenv -> subst:NCic.substitution ->
+  context:NCic.context -> NCic.term -> (NCic.term * int * int) option