lib/abstract_mapper/rule.rb in abstract_mapper-0.0.1 vs lib/abstract_mapper/rule.rb in abstract_mapper-0.0.2

@@ -8,10 +8,16 @@
   #
   # @api private
   #
   class Rule
 
+    # @private
+    def self.composer
+      :identity
+    end
+    private_class_method :composer
+
     # The transformation function that applies the rule to the array of nodes
     #
     # @return [Transproc::Function]
     #
     def self.transproc
@@ -33,11 +39,26 @@
     #
     # @return [AbstractMapper::Rule]
 
     # @private
     def initialize(*nodes)
-      @nodes = nodes.freeze
-      freeze
+      @nodes = nodes
+      IceNine.deep_freeze(self)
+    end
+
+    # Checks if optimization is needed for the node(s)
+    #
+    # @return [Boolean]
+    #
+    def optimize?
+    end
+
+    # Returns the optimized node(s)
+    #
+    # @return [Object]
+    #
+    def optimize
+      nodes
     end
 
     # Returns the result of the rule applied to the initialized [#nodes]
     #
     # @return [Array<AbstractMapper::Node>]