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gh-137200: support frame lineno setter with BRANCH_LEFT and BRANCH_RIGHT events #137229

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Merged
merged 5 commits into from
Jul 31, 2025
Merged

gh-137200: support frame lineno setter with BRANCH_LEFT and BRANCH_RIGHT events #137229

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e8b3ec8
simple fix
xuantengh Jul 30, 2025
2e4db16
add test
xuantengh Jul 30, 2025
b49f95d
set lineno for frame 1
xuantengh Jul 31, 2025
d41cf78
Revert "set lineno for frame 1"
xuantengh Jul 31, 2025
b8e9f12
fix test
xuantengh Jul 31, 2025
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add test
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@xuantengh
xuantengh committed Jul 30, 2025
commit 2e4db16adf480bffd9a2afaa77b71bafaa2756b8
18 changes: 18 additions & 0 deletions Lib/test/test_monitoring.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1709,6 +1709,24 @@ def func(v=1):
('branch right', 'func', 6, 8),
('branch right', 'func', 2, 10)])

def test_callback_set_frame_lineno(self):
def func(s: str) -> int:
if s.startswith("t"):
return 1
else:
return 0

def callback(code, from_, to):
frame = sys._getframe(0)
old = frame.f_lineno
# try set frame.f_lineno
frame.f_lineno = frame.f_lineno

sys.monitoring.set_local_events(TEST_TOOL, func.__code__, E.BRANCH_LEFT)
sys.monitoring.register_callback(TEST_TOOL, E.BRANCH_LEFT, callback)

self.assertEqual(func("true"), 1)


class TestBranchConsistency(MonitoringTestBase, unittest.TestCase):

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