X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fcic_unification%2FcoercGraph.mli;h=3bc6273c34e44721dcf76ea85bfb0e16e3171db9;hb=d35aca0e979a9c7edbc60c44040360d52be8ca82;hp=ae2bd9233943c3d1993be89f0c05d1fb6a775396;hpb=e5bcf92808b75387ef4d4ff0f827bf07ad9af2f7;p=helm.git

diff --git a/helm/software/components/cic_unification/coercGraph.mli b/helm/software/components/cic_unification/coercGraph.mli
index ae2bd9233..3bc6273c3 100644
--- a/helm/software/components/cic_unification/coercGraph.mli
+++ b/helm/software/components/cic_unification/coercGraph.mli
@@ -32,33 +32,25 @@ type coercion_search_result =
      (* to apply the coercion it is sufficient to unify the last coercion
         argument (that is a Meta) with the term to be coerced *)
   | SomeCoercion of (Cic.metasenv * Cic.term * Cic.term) list
+  | SomeCoercionToTgt of (Cic.metasenv * Cic.term * Cic.term) list
   | NoCoercion
-  | NotMetaClosed
-  | NotHandled of string Lazy.t
+  | NotHandled
 
 val look_for_coercion :
   Cic.metasenv -> Cic.substitution -> Cic.context ->
    Cic.term -> Cic.term -> coercion_search_result
 
-val look_for_coercion' :
-  Cic.metasenv -> Cic.substitution -> Cic.context ->
-   CoercDb.coerc_carr -> CoercDb.coerc_carr -> coercion_search_result
-
-(* checks if term is a constant or 
- * a constant applyed that is marked with (`Class `Coercion) *)
-val is_composite: Cic.term -> bool
-
 val source_of: Cic.term -> Cic.term
 
 val generate_dot_file: unit -> string
 
 (* given the Appl contents returns the argument of the head coercion *)
-val coerced_arg: Cic.term list -> Cic.term option
+val coerced_arg: Cic.term list -> (Cic.term * int) option
 
 (* returns: (carr,menv,(saturated coercion,last arg)option,idem) list *)
 val meets : 
   Cic.metasenv -> Cic.substitution -> Cic.context ->
-  CoercDb.coerc_carr -> CoercDb.coerc_carr -> 
+  bool * CoercDb.coerc_carr -> bool * CoercDb.coerc_carr -> 
     (CoercDb.coerc_carr * Cic.metasenv * 
       (Cic.term * Cic.term) option * (Cic.term * Cic.term) option) list