John Hawthorn 05b1944c53 objspace: Hide identhash containing internal objs ... Inside ObjectSpace.reachable_objects_from we keep an internal identhash in order to de-duplicate reachable objects when wrapping them as InternalObject. Previously this hash was not hidden, making it possible to leak references to those internal objects to Ruby if using ObjectSpace.each_object. This commit solves this by hiding the hash. To simplify collection of values, we instead now just use the hash as a set of visited objects, and collect an Array (not hidden) of values to be returned.		2022-02-09 17:32:43 -08:00
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test_objspace.rb	objspace: Hide identhash containing internal objs	2022-02-09 17:32:43 -08:00