generate.rb in hashformer-0.2.1

- old
+ new

@@ -21,10 +21,12 @@
       def call(input_hash)
         values = @keys.map{|k| Hashformer.get_value(input_hash, k)}
         values = @block.call(*values) if @block
         values
       end
+
+      # TODO: Make maps chainable?  Or at least add a #reduce method.
     end
 
     # Internal representation of a path to a nested key/value.  Do not
     # instantiate directly; call Hashformer::Generate.path (or HF::G.path)
     # instead.
@@ -109,10 +111,18 @@
       # Adds the given call info (used by Receiver).
       def <<(info)
         @calls << info
         self
       end
+
+      # Returns a String with the class name and a list of chained methods.
+      def to_s
+        "#{self.class.name}: #{@calls.map{|c| c[:name]}}"
+      end
+      alias inspect to_s
     end
+
+    # TODO: Add a constant generator (that can be chained?)
 
     # Generates a transformation that passes one or more values from the input
     # Hash (denoted by key names or paths (see Hashformer::Generate.path) to
     # the block.  If the block is not given, then the values are placed in an
     # array in the order in which their keys were given as parameters.