lib/liquidscript/icr/context.rb in liquidscript-0.6.1 vs lib/liquidscript/icr/context.rb in liquidscript-0.6.2

@@ -1,5 +1,7 @@
+require "hashie"
+
 module Liquidscript
   module ICR
 
     # Handles variables within blocks.  Each variable will get a
     # reference in each context.  When retrieving the value of
@@ -60,9 +62,18 @@
             parent.get(name)
           else
             raise InvalidReferenceError.new(name)
           end
         end
+      end
+
+      # Allows a specific variable to be used - but doesn't define it
+      # in the current context.
+      #
+      # @param name [Symbol]
+      # @return [void]
+      def allow(name)
+        allowed_variables << name
       end
 
       # All of the parameter variables.
       #
       # @return [Array<Variable>]