Method deprecated or moved
This method is deprecated or moved on the latest stable version.
The last existing version (v2.3.8) is shown here.
class_eval(*args, &block)
public
class_eval on an object acts like
singleton_class_eval.
# File activesupport/lib/active_support/core_ext/object/singleton_class.rb, line 10
def class_eval(*args, &block)
singleton_class.class_eval(*args, &block)
end