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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.
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
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