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yhara/finalizer.rb

Last active February 16, 2019 10:35
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finalizer.rb
HOOK = proc{}
class A
def foo
ObjectSpace.define_finalizer self, HOOK
end
end
A.new.foo
10.times{GC.start}
p ObjectSpace.each_object(A).to_a #=> [#<A:0x00007fbae28ef1f8>]
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