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author | Jeremy Kemper <jeremy@bitsweat.net> | 2008-08-25 17:05:31 -0700 |
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committer | Jeremy Kemper <jeremy@bitsweat.net> | 2008-08-25 17:05:50 -0700 |
commit | 5e1ceb153c6f0445ec8925e9077859d963118eaf (patch) | |
tree | 2642721bf38f498aaa16607ca7b77ab844b48348 /activesupport/lib | |
parent | a916c2e3d316c8338fa1d9d15f449403bddddf11 (diff) | |
download | rails-5e1ceb153c6f0445ec8925e9077859d963118eaf.tar.gz rails-5e1ceb153c6f0445ec8925e9077859d963118eaf.tar.bz2 rails-5e1ceb153c6f0445ec8925e9077859d963118eaf.zip |
Work around frozen Date memoization
Diffstat (limited to 'activesupport/lib')
-rw-r--r-- | activesupport/lib/active_support/core_ext/date/behavior.rb | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/date/behavior.rb b/activesupport/lib/active_support/core_ext/date/behavior.rb index 011cc17cbf..6f8f7c6a82 100644 --- a/activesupport/lib/active_support/core_ext/date/behavior.rb +++ b/activesupport/lib/active_support/core_ext/date/behavior.rb @@ -7,6 +7,22 @@ module ActiveSupport #:nodoc: 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 |