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gh-109351: Fix crash when compiling AST with invalid NamedExpr (#109352)

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Jelle Zijlstra 2023-09-13 09:00:15 -07:00 • committed by GitHub
parent d69805b38a
commit 79101edb03
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27
Lib/test/test_compile.py
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@ -443,6 +443,33 @@ class TestSpecifics(unittest.TestCase):
self.assertIn("_A__mangled_mod", A.f.__code__.co_varnames)
self.assertIn("__package__", A.f.__code__.co_varnames)
def test_compile_invalid_namedexpr(self):
# gh-109351
m = ast.Module(
body=[
ast.Expr(
value=ast.ListComp(
elt=ast.NamedExpr(
target=ast.Constant(value=1),
value=ast.Constant(value=3),
),
generators=[
ast.comprehension(
target=ast.Name(id="x", ctx=ast.Store()),
iter=ast.Name(id="y", ctx=ast.Load()),
ifs=[],
is_async=0,
)
],
)
)
],
type_ignores=[],
)
with self.assertRaisesRegex(TypeError, "NamedExpr target must be a Name"):
compile(ast.fix_missing_locations(m), "<file>", "exec")
def test_compile_ast(self):
fname = __file__
if fname.lower().endswith('pyc'):