-require 'date'
-
-module ActiveSupport #:nodoc:
- module CoreExtensions #:nodoc:
- module Date #:nodoc:
- module Behavior
- # Enable more predictable duck-typing on Date-like classes. See
- # Object#acts_like?.
- def acts_like_date?
- true
- end
-
- # Date memoizes some instance methods using metaprogramming to wrap
- # the methods with one that caches the result in an instance variable.
- #
- # If a Date is frozen but the memoized method hasn't been called, the
- # first call will result in a frozen object error since the memo
- # instance variable is uninitialized.
- #
- # Work around by eagerly memoizing before freezing.
- #
- # Ruby 1.9 uses a preinitialized instance variable so it's unaffected.
- # This hack is as close as we can get to feature detection:
- begin
- ::Date.today.freeze.jd
- rescue => frozen_object_error
- if frozen_object_error.message =~ /frozen/
- def freeze #:nodoc:
- self.class.private_instance_methods(false).each do |m|
- if m.to_s =~ /\A__\d+__\Z/
- instance_variable_set(:"@#{m}", [send(m)])
- end
- end
-
- super
- end
- end
- end
- end
- end
- end
-end