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ruby--ruby/sample/weakref.rb
hsbt 25926315ea * lib/weakref.rb: split executable code into sample directory.
* sample/weakref.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46967 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-07-26 17:12:11 +00:00

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Ruby

require 'weakref'
foo = Object.new
p foo.to_s # original's class
foo = WeakRef.new(foo)
p foo.to_s # should be same class
ObjectSpace.garbage_collect
ObjectSpace.garbage_collect
p foo.to_s # should raise exception (recycled)