X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FnReference.ml;h=e209d05bef8e8d3c28b13093addee5f4be070b69;hb=a7237500e8a2a4237a6ae8ba4b8301f7bbcb6acb;hp=2892915c340b83f450dd0b4acc10b9989221f9f1;hpb=f4d71b463ae8510e80a40cf4df475d19fab3df2c;p=helm.git

diff --git a/helm/software/components/ng_kernel/nReference.ml b/helm/software/components/ng_kernel/nReference.ml
index 2892915c3..e209d05be 100644
--- a/helm/software/components/ng_kernel/nReference.ml
+++ b/helm/software/components/ng_kernel/nReference.ml
@@ -25,10 +25,15 @@ type reference = Ref of NUri.uri * spec
 
 let eq = (==);;
 
+let compare (Ref (u1,s1)) (Ref (u2,s2)) =
+ let res = NUri.compare u1 u2 in
+  if res = 0 then compare s1 s2 else res
+;;
+
 module OrderedStrings =
  struct
   type t = string
-  let compare (s1 : t) (s2 : t) = compare s1 s2
+  let compare (s1 : t) (s2 : t) = Pervasives.compare s1 s2
  end
 ;;
 
@@ -119,7 +124,16 @@ let string_of_reference (Ref (u,indinfo)) =
 let mk_constructor j = function
   | Ref (u, Ind (_,i,l)) -> 
       reference_of_string (string_of_reference (Ref (u, Con (i,j,l))))
-  | _ -> assert false
+  | r -> 
+      raise (IllFormedReference (lazy ("NON INDUCTIVE TYPE REFERENCE: " ^
+        string_of_reference r))); 
+;;
+let mk_indty b = function
+  | Ref (u, Con (i,_,l)) -> 
+      reference_of_string (string_of_reference (Ref (u, Ind (b,i,l))))
+  | r -> 
+      raise (IllFormedReference (lazy 
+        ("NON INDUCTIVE TYPE CONSTRUCTOR REFERENCE: " ^ string_of_reference r))); 
 ;;
 
 let mk_fix i j = function
@@ -133,3 +147,11 @@ let mk_cofix i = function
       reference_of_string (string_of_reference (Ref (u, CoFix i)))
   | _ -> assert false
 ;;
+
+let reference_of_spec u spec = 
+  reference_of_string (string_of_reference (Ref (u, spec)))
+;;
+
+
+
+