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object.c (rb_class_real): do not dereference 0 VALUE

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* test/ruby/test_module.rb (test_inspect_segfault):
  Test case and bug report by Thomas Stratmann.
  [ruby-core:65214] [Bug #10282]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47715 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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normal 2014-09-25 20:29:15 +00:00
parent e0f02160bc
commit 0ef94bd2af
3 changed files with 34 additions and 3 deletions
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24
test/ruby/test_module.rb
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@ -1971,6 +1971,30 @@ class TestModule < Test::Unit::TestCase
}
end
def test_inspect_segfault
bug_10282 = '[ruby-core:65214] [Bug #10282]'
assert_separately [], <<-RUBY
module ShallowInspect
def shallow_inspect
"foo"
end
end
module InspectIsShallow
include ShallowInspect
alias_method :inspect, :shallow_inspect
end
class A
end
A.prepend InspectIsShallow
expect = "#<Method: A(Object)#inspect(shallow_inspect)>"
assert_equal expect, A.new.method(:inspect).inspect, "#{bug_10282}"
RUBY
end
private
def assert_top_method_is_private(method)