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GH-105840: Fix assertion failures when specializing calls with too many __defaults__ #105847

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Merged
brandtbucher merged 3 commits into from
Jun 16, 2023
Merged

GH-105840: Fix assertion failures when specializing calls with too many __defaults__ #105847

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06ab50d
Add failing regression tests
brandtbucher Jun 16, 2023
b778276
Gracefully handle too many __defaults__
brandtbucher Jun 16, 2023
e920629
blurb add
brandtbucher Jun 16, 2023
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Add failing regression tests
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@brandtbucher
brandtbucher committed Jun 16, 2023
commit 06ab50d84d91bff0b1132c81c6b73bb25eedf1dd
29 changes: 29 additions & 0 deletions Lib/test/test_opcache.py
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Original file line number Diff line number Diff line change
Expand Up @@ -452,6 +452,35 @@ def f():
self.assertFalse(f())


class TestCallCache(unittest.TestCase):
def test_too_many_defaults_0(self):
def f():
pass

f.__defaults__ = (None,)
for _ in range(1025):
f()

def test_too_many_defaults_1(self):
def f(x):
pass

f.__defaults__ = (None, None)
for _ in range(1025):
f(None)
f()

def test_too_many_defaults_2(self):
def f(x, y):
pass

f.__defaults__ = (None, None, None)
for _ in range(1025):
f(None, None)
f(None)
f()


if __name__ == "__main__":
import unittest
unittest.main()