lib/active_support/duration.rb in activesupport-3.0.0.beta4 vs lib/active_support/duration.rb in activesupport-3.0.pre

@@ -1,8 +1,7 @@
 require 'active_support/basic_object'
 require 'active_support/core_ext/array/conversions'
-require 'active_support/core_ext/object/acts_like'
 
 module ActiveSupport
   # Provides accurate date and time measurements using Date#advance and 
   # Time#advance, respectively. It mainly supports the methods on Numeric,
   # such as in this example:
@@ -34,13 +33,12 @@
     def -@ #:nodoc:
       Duration.new(-value, parts.map { |type,number| [type, -number] })
     end
 
     def is_a?(klass) #:nodoc:
-      Duration == klass || value.is_a?(klass)
+      klass == Duration || super
     end
-    alias :kind_of? :is_a?
 
     # Returns true if <tt>other</tt> is also a Duration instance with the
     # same <tt>value</tt>, or if <tt>other == value</tt>.
     def ==(other)
       if Duration === other
@@ -49,12 +47,10 @@
         other == value
       end
     end
 
     def self.===(other) #:nodoc:
-      other.is_a?(Duration)
-    rescue ::NoMethodError
-      false
+      other.is_a?(Duration) rescue super
     end
 
     # Calculates a new Time or Date that is as far in the future
     # as this Duration represents.
     def since(time = ::Time.current)