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Bug #5350

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* gc.c: add ObjectSpace::WeakMap.  [ruby-dev:44565][Bug #5350]
* lib/weakref.rb: use WeakMap instead of _id2ref.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34995 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2012-03-13 03:37:06 +00:00
parent 826cdd67a0
commit df058ea0e3
4 changed files with 249 additions and 46 deletions
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22
test/test_weakref.rb Normal file
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@ -0,0 +1,22 @@
require 'test/unit'
require 'weakref'
class TestWeakRef < Test::Unit::TestCase
def make_weakref
obj = Object.new
return WeakRef.new(obj), obj.to_s
end
def test_ref
weak, str = make_weakref
assert_equal(str, weak.to_s)
end
def test_recycled
weak, str = make_weakref
assert_nothing_raised(WeakRef::RefError) {weak.to_s}
ObjectSpace.garbage_collect
ObjectSpace.garbage_collect
assert_raise(WeakRef::RefError) {weak.to_s}
end
end