--- trunk/src/compiler/ast/ast.sml	2010/10/05 20:38:05	380
+++ trunk/src/compiler/ast/ast.sml	2010/10/05 21:42:17	381
@@ -70,7 +70,8 @@
       | E_Tuple of expr list
       | E_Apply of var * Ty.meta_var list * expr list * Ty.ty
 		(* note: operators can be polymorphic, so we record the type arguments. *)
-      | E_Cons of expr list	(* tensor-value construction *)
+      | E_Cons of expr list			(* tensor-value construction *)
+      | E_Slice of expr * expr option list	(* tensor slicing *)
       | E_Cond of expr * expr * expr
 
   end

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       | E_Cond of expr * expr * expr
 
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