summaryrefslogtreecommitdiff
path: root/src/python/stdlib/test/crashers/loosing_mro_ref.py
diff options
context:
space:
mode:
authorSimon Robertshaw <simon@hardwired.org.uk>2011-10-26 13:50:50 (GMT)
committer Simon Robertshaw <simon@hardwired.org.uk>2011-10-26 13:50:50 (GMT)
commite46ef289e142982d7bd592faa7b0f85470364c01 (patch)
treecda253e03788f7db0a7cdcd05662f66b4455e298 /src/python/stdlib/test/crashers/loosing_mro_ref.py
parentd0d0d62bbcbb5c3417f8cba419c83bac192ea985 (diff)
downloadpowder-e46ef289e142982d7bd592faa7b0f85470364c01.zip
powder-e46ef289e142982d7bd592faa7b0f85470364c01.tar.gz
Remove Python console stuff
Diffstat (limited to 'src/python/stdlib/test/crashers/loosing_mro_ref.py')
-rw-r--r--src/python/stdlib/test/crashers/loosing_mro_ref.py35
1 files changed, 0 insertions, 35 deletions
diff --git a/src/python/stdlib/test/crashers/loosing_mro_ref.py b/src/python/stdlib/test/crashers/loosing_mro_ref.py
deleted file mode 100644
index b5fa93b..0000000
--- a/src/python/stdlib/test/crashers/loosing_mro_ref.py
+++ /dev/null
@@ -1,35 +0,0 @@
-"""
-There is a way to put keys of any type in a type's dictionary.
-I think this allows various kinds of crashes, but so far I have only
-found a convoluted attack of _PyType_Lookup(), which uses the mro of the
-type without holding a strong reference to it. Probably works with
-super.__getattribute__() too, which uses the same kind of code.
-"""
-
-class MyKey(object):
- def __hash__(self):
- return hash('mykey')
-
- def __cmp__(self, other):
- # the following line decrefs the previous X.__mro__
- X.__bases__ = (Base2,)
- # trash all tuples of length 3, to make sure that the items of
- # the previous X.__mro__ are really garbage
- z = []
- for i in range(1000):
- z.append((i, None, None))
- return -1
-
-
-class Base(object):
- mykey = 'from Base'
-
-class Base2(object):
- mykey = 'from Base2'
-
-# you can't add a non-string key to X.__dict__, but it can be
-# there from the beginning :-)
-X = type('X', (Base,), {MyKey(): 5})
-
-print X.mykey
-# I get a segfault, or a slightly wrong assertion error in a debug build.