X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_refiner%2FnCicMetaSubst.mli;h=94a77f287e40b76d21f141e46a012f000da9f255;hb=57a360d659425ce1ee9a69516b66a4d3c7b8eb62;hp=91752fbf75e433b7155581c79859f0ef2d9cabcc;hpb=9182039cdc2a7573f36014f9b266e27ac123a1ad;p=helm.git

diff --git a/helm/software/components/ng_refiner/nCicMetaSubst.mli b/helm/software/components/ng_refiner/nCicMetaSubst.mli
index 91752fbf7..94a77f287 100644
--- a/helm/software/components/ng_refiner/nCicMetaSubst.mli
+++ b/helm/software/components/ng_refiner/nCicMetaSubst.mli
@@ -14,22 +14,14 @@
 exception MetaSubstFailure of string Lazy.t
 exception Uncertain of string Lazy.t
 
-(*
-exception AssertFailure of string Lazy.t
-exception DeliftingARelWouldCaptureAFreeVariable;;
-val apply_subst : Cic.substitution -> Cic.term -> Cic.term 
-val apply_subst_context : Cic.substitution -> Cic.context -> Cic.context 
-val apply_subst_metasenv: Cic.substitution -> Cic.metasenv -> Cic.metasenv 
-
-(*** delifting ***)
+val debug: bool ref
 
-val restrict :
-  Cic.substitution -> (int * int) list -> Cic.metasenv -> 
-  Cic.metasenv * Cic.substitution 
-*)
+(* the index of the last created meta *)
+val maxmeta: unit -> int
 
 (* the delift function takes in input a metavariable index, a local_context
- * and a term t, and substitutes every Rel in t with its position in
+ * and a term t, and substitutes every subterm t' of t with its position 
+ * (searched up-to unification) in
  * the local_context (which is the Rel moved to the canonical context).
  * Typically, the list of optional terms is the explicit
  * substitution that is applied to a metavariable occurrence and the result of
@@ -43,6 +35,8 @@ val restrict :
  * in the term (for occur check).
  *)
 val delift : 
+  unify:(NCic.metasenv -> NCic.substitution -> NCic.context ->
+    NCic.term -> NCic.term -> (NCic.metasenv * NCic.substitution) option) -> 
   NCic.metasenv -> NCic.substitution -> NCic.context -> 
   int -> NCic.local_context -> NCic.term ->
     (NCic.metasenv * NCic.substitution) * NCic.term
@@ -52,3 +46,21 @@ val restrict:
     NCic.substitution ->
       int -> int list -> NCic.metasenv * NCic.substitution * int
 
+(* bool = true if the type of the new meta is closed *)
+val mk_meta: 
+   ?attrs:NCic.meta_attrs -> 
+   NCic.metasenv -> NCic.context -> 
+    ?with_type:NCic.term -> NCicUntrusted.meta_kind ->
+    NCic.metasenv * int * NCic.term * NCic.term (* menv,metano,instance,type *)
+
+(* extend_meta m n: n must be in m *)
+val extend_meta: NCic.metasenv -> int -> NCic.metasenv * NCic.term
+
+(* returns the resulting type, the metasenv and the arguments *)
+val saturate:
+    ?delta:int -> NCic.metasenv -> NCic.substitution -> 
+    NCic.context -> NCic.term -> int ->
+       NCic.term * NCic.metasenv * NCic.term list
+
+val is_out_scope_tag : NCic.meta_attrs -> bool
+val int_of_out_scope_tag : NCic.meta_attrs -> int