X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_unification%2FcicMetaSubst.mli;h=14d6da3f6de183460f47bc909d223f0cdb917817;hb=741b3e9014f940fbbd34bee7b606ff7e72170452;hp=4f055f1f876631fbd8f282b849b0ab9f2acbea87;hpb=fb0f22004d533abca8d157ed89665dbf1041e0e2;p=helm.git

diff --git a/helm/ocaml/cic_unification/cicMetaSubst.mli b/helm/ocaml/cic_unification/cicMetaSubst.mli
index 4f055f1f8..14d6da3f6 100644
--- a/helm/ocaml/cic_unification/cicMetaSubst.mli
+++ b/helm/ocaml/cic_unification/cicMetaSubst.mli
@@ -27,9 +27,14 @@ exception MetaSubstFailure of string
 exception Uncertain of string
 exception AssertFailure of string
 
+exception SubstNotFound of int
+
 (* The entry (i,t) in a substitution means that *)
 (* (META i) have been instantiated with t.      *)
-type substitution = (int * Cic.term) list
+type substitution = (int * (Cic.context * Cic.term)) list
+
+  (** @raise SubstNotFound *)
+val lookup_subst: int -> substitution -> Cic.context * Cic.term
 
 (* apply_subst subst t                     *)
 (* applies the substitution [subst] to [t] *)
@@ -52,6 +57,7 @@ val type_of_aux':
   Cic.metasenv -> substitution -> Cic.context -> Cic.term -> Cic.term
 
 val tempi_type_of_aux : float ref
+val tempi_subst : float ref
 val tempi_type_of_aux_subst : float ref
 
 (*** delifting ***)
@@ -80,3 +86,9 @@ val fppsubst: Format.formatter -> substitution -> unit
 val fppterm: Format.formatter -> Cic.term -> unit
 val fppmetasenv: Format.formatter -> Cic.metasenv -> unit
 
+(*
+(* DEBUG *)
+val print_counters: unit -> unit
+val reset_counters: unit -> unit
+*)
+