Use of standard OCaml syntax

[helm.git] / matita / components / ng_refiner / nCicCoercion.mli

diff --git a/matita/components/ng_refiner/nCicCoercion.mli b/matita/components/ng_refiner/nCicCoercion.mli
index d85484a2a4d02959f2451bea524972c56b5fc152..d2b3c7ae22ac660939d6ebd75e4fc1dd8517a81a 100644 (file)
--- a/matita/components/ng_refiner/nCicCoercion.mli
+++ b/matita/components/ng_refiner/nCicCoercion.mli
@@ -19,7 +19,7 @@ class type g_status =
   method coerc_db: db
  end
 
-class status :
+class virtual status :
  object ('self)
   inherit g_status
   inherit NCicUnifHint.status
@@ -33,9 +33,12 @@ val empty_db: db
    index_coercion db c A B \arity_left(c ??x??) \position(x,??x??) 
 *)
 val index_coercion: 
-  #status as 'status -> string ->
+  (#status as 'status) -> string ->
    NCic.term -> NCic.term -> NCic.term -> int -> int -> 'status
 
+(* NOTE: the name of the coercion is used to sort coercions, thus 
+ * two coercions matching the same number of symbols are sorted 
+ * according to their name *)
 val look_for_coercion:
     #status ->
     NCic.metasenv -> NCic.substitution -> NCic.context ->