module ActionView::LookupContext::DetailsCache

def _set_detail(key, value) 

def _set_detail(key, value)
  @details = @details.dup if @details_key
  @details_key = nil
  @details[key] = value
end

def details_key #:nodoc:

:nodoc:
since the user cannot modify it explicitly.
Calculate the details key. Remove the handlers from calculation to improve performance 
def details_key #:nodoc:
  @details_key ||= DetailsKey.get(@details) if @cache
end

def disable_cache

Temporary skip passing the details_key forward. 
def disable_cache
  old_value, @cache = @cache, false
  yield
ensure
  @cache = old_value
end