blob: 041afab14da643251f42dc69688e9ff7710f76dc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
require 'weakref'
# From MRI test_weakref.rb
class WeakRefSpec
def self.make_weakref(level = 10)
if level > 0
make_weakref(level - 1)
else
WeakRef.new(Object.new)
end
end
def self.make_dead_weakref
weaks = []
weak = nil
1000.times do
weaks << make_weakref
end
1000.times do
GC.start
break if weak = weaks.find { |w| !w.weakref_alive? }
end
weak
end
end
|