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require 'weakref'
module Ref
class WeakReference < Reference
# This implementation of a weak reference simply wraps the standard WeakRef implementation
# that comes with the Ruby standard library.
def initialize(obj) #:nodoc:
@referenced_object_id = obj.__id__
@ref = ::WeakRef.new(obj)
end
def object #:nodoc:
@ref.__getobj__
rescue => e
# Jruby implementation uses RefError while MRI uses WeakRef::RefError
if (defined?(RefError) && e.is_a?(RefError)) || (defined?(::WeakRef::RefError) && e.is_a?(::WeakRef::RefError))
nil
else
raise e
end
end
end
end
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