X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_unification%2FcicMetaSubst.mli;h=6ebd5a5b9e7ec788dd37eac817ef85503f2aa0cf;hb=3bb4ce11fb9d4c6375483a80344beb94c4517dd7;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..6ebd5a5b9 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 ***)
@@ -60,9 +66,12 @@ val delift :
   int -> substitution -> Cic.context -> Cic.metasenv ->
   (Cic.term option) list -> Cic.term ->
     Cic.term * Cic.metasenv * substitution
-
+val restrict :
+  substitution -> (int * int) list -> Cic.metasenv -> 
+  Cic.metasenv * substitution 
 (** {2 Pretty printers} *)
 
+val ppsubst_unfolded: substitution -> string
 val ppsubst: substitution -> string
 val ppterm: substitution -> Cic.term -> string
 val ppcontext: ?sep: string -> substitution -> Cic.context -> string
@@ -80,3 +89,12 @@ 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
+*)
+
+(* val clean_up_meta :
+  substitution -> Cic.metasenv -> Cic.term -> Cic.term
+*)