Joshua Haberman 9879f423ff Ruby <2.7now uses WeakMap too, which prevents memory leaks. ... Ruby <2.7 does not allow non-finalizable objects to be WeakMap keys: https://bugs.ruby-lang.org/issues/16035 We work around this by using a secondary map for Ruby <2.7 which maps the non-finalizable integer to a distinct object. For now we accept that the entries in the secondary map wil never be collected. If this becomes a problem we can perform a GC pass every so often that looks at the contents of the object cache to decide what can be deleted from the secondary map.		2021-02-24 16:41:35 -08:00
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protobuf_c	Ruby <2.7now uses WeakMap too, which prevents memory leaks.	2021-02-24 16:41:35 -08:00