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[3.13] gh-120722: Set position on RETURN_VALUE in lambda (GH-120724) (#120738)

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(cherry picked from commit d8f27cb114)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
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Miss Islington (bot) 2024-06-19 15:22:21 +02:00 • committed by GitHub
parent c598e61a22
commit 4ce1246a99
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3 changed files with 31 additions and 2 deletions
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29
Lib/test/test_compile.py
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@ -15,7 +15,7 @@ import warnings
import _testinternalcapi
from test import support
from test.support import (script_helper, requires_debug_ranges,
from test.support import (script_helper, requires_debug_ranges, run_code,
requires_specialization, get_c_recursion_limit)
from test.support.bytecode_helper import instructions_with_positions
from test.support.os_helper import FakePath
@ -2028,6 +2028,33 @@ class TestSourcePositions(unittest.TestCase):
code, "LOAD_GLOBAL", line=3, end_line=3, column=4, end_column=9
)
def test_lambda_return_position(self):
snippets = [
"f = lambda: x",
"f = lambda: 42",
"f = lambda: 1 + 2",
"f = lambda: a + b",
]
for snippet in snippets:
with self.subTest(snippet=snippet):
lamb = run_code(snippet)["f"]
positions = lamb.__code__.co_positions()
# assert that all positions are within the lambda
for i, pos in enumerate(positions):
with self.subTest(i=i, pos=pos):
start_line, end_line, start_col, end_col = pos
if i == 0 and start_col == end_col == 0:
# ignore the RESUME in the beginning
continue
self.assertEqual(start_line, 1)
self.assertEqual(end_line, 1)
code_start = snippet.find(":") + 2
code_end = len(snippet)
self.assertGreaterEqual(start_col, code_start)
self.assertLessEqual(end_col, code_end)
self.assertGreaterEqual(end_col, start_col)
self.assertLessEqual(end_col, code_end)
class TestExpectedAttributes(unittest.TestCase):