lib/lrama/grammar/code/no_reference_code.rb in lrama-0.6.2 vs lib/lrama/grammar/code/no_reference_code.rb in lrama-0.6.3

@@ -4,17 +4,21 @@
       class NoReferenceCode < Code
         private
 
         # * ($$) error
         # * (@$) error
+        # * ($:$) error
         # * ($1) error
         # * (@1) error
+        # * ($:1) error
         def reference_to_c(ref)
           case
           when ref.type == :dollar # $$, $n
             raise "$#{ref.value} can not be used in #{type}."
           when ref.type == :at # @$, @n
             raise "@#{ref.value} can not be used in #{type}."
+          when ref.type == :index # $:$, $:n
+            raise "$:#{ref.value} can not be used in #{type}."
           else
             raise "Unexpected. #{self}, #{ref}"
           end
         end
       end