devel/rubygem-ref/pkg-descr


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Library that implements weak, soft, and strong references in Ruby that 
work across multiple runtimes (MRI, REE, YARV, Jruby, Rubinius, and 
IronRuby). Also includes implementation of maps/hashes that use references 
and a reference queue.

WWW: https://github.com/ruby-concurrency/ref