lib/map.rb in map-2.9.1 vs lib/map.rb in map-3.0.0

@@ -1,7 +1,7 @@
 class Map < Hash
-  Version = '2.9.1' unless defined?(Version)
+  Version = '3.0.0' unless defined?(Version)
   Load = Kernel.method(:load) unless defined?(Load)
 
   class << Map
     def version
       Map::Version
@@ -61,32 +61,44 @@
         type_names = map_like.map do |ancestor|
           name = ancestor.name.to_s.strip
           next if name.empty?
           name.downcase.gsub(/::/, '_')
         end.compact
-        type_names.map{|type_name| "to_#{ type_name }"}
+        list = type_names.map{|type_name| "to_#{ type_name }"}
+        list.each{|method| define_conversion_method!(method)}
+        list
       )
     end
 
-    def add_conversion_method!(method)
+    def define_conversion_method!(method)
       method = method.to_s.strip
       raise ArguementError if method.empty?
       module_eval(<<-__, __FILE__, __LINE__)
         unless public_method_defined?(#{ method.inspect })
           def #{ method }
             self
           end
+          true
+        else
+          false
         end
-        unless conversion_methods.include?(#{ method.inspect })
-          conversion_methods.unshift(#{ method.inspect })
-        end
       __
     end
 
-    def inherited(other)
-      other.module_eval(&Dynamic)
-      super
+    def add_conversion_method!(method)
+      if define_conversion_method!(method)
+        method = method.to_s.strip
+        raise ArguementError if method.empty?
+        module_eval(<<-__, __FILE__, __LINE__)
+          unless conversion_methods.include?(#{ method.inspect })
+            conversion_methods.unshift(#{ method.inspect })
+          end
+        __
+        true
+      else
+        false
+      end
     end
 
   # iterate over arguments in pairs smartly.
   #
     def each_pair(*args, &block)
@@ -155,19 +167,9 @@
 
     def match(haystack, needle)
       intersection(haystack, needle) == needle
     end
   end
-
-  unless defined?(Dynamic)
-    Dynamic = lambda do
-      conversion_methods.reverse_each do |method|
-        add_conversion_method!(method)
-      end
-    end
-    module_eval(&Dynamic)
-  end
-
 
 # instance constructor 
 #
   def keys
     @keys ||= []