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edisonywh/block7.ruby Secret

Created November 9, 2018 11:13
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block7.ruby
HiddenModule = Module.new
class Foo
extend HiddenModule
end
Foo.singleton_class.ancestors #=> [#<Class:Foo>, HiddenModule, #<Class:Object>, #<Class:BasicObject>, Class, Module, Object, Kernel, BasicObject]
# Well HiddenModule is not so hidden anymore!
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