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-rw-r--r--activesupport/lib/active_support/core_ext/hash/indifferent_access.rb12
1 files changed, 12 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb b/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
index aad4b61e16..c2a6476604 100644
--- a/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
+++ b/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
@@ -9,4 +9,16 @@ class Hash
def with_indifferent_access
ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default(self)
end
+
+ # Called when object is nested under an object that receives
+ # #with_indifferent_access. This method with be called on the current object
+ # by the enclosing object and is aliased to #with_indifferent_access by
+ # default. Subclasses of Hash may overwrite this method to return +self+ if
+ # converting to an +ActiveSupport::HashWithIndifferentAccess+ would not be
+ # desirable.
+ #
+ # b = {:b => 1}
+ # {:a => b}.with_indifferent_access["a"] # calls b.nested_under_indifferent_access
+ #
+ alias nested_under_indifferent_access with_indifferent_access
end