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gh-92597: Ensure that AST nodes without explicit end positions can be compiled (GH-93359)

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(cherry picked from commit 705eaec28f)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
This commit is contained in:
Miss Islington (bot) 2022-05-31 16:26:16 -07:00 • committed by GitHub
parent 29bfabe970
commit b425d887aa
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4 changed files with 35 additions and 13 deletions
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8
Lib/test/test_ast.py
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@ -362,6 +362,14 @@ class AST_Tests(unittest.TestCase):
with self.assertRaises(ValueError):
compile(tree, '<string>', 'exec')
def test_compilation_of_ast_nodes_with_default_end_position_values(self):
tree = ast.Module(body=[
ast.Import(names=[ast.alias(name='builtins', lineno=1, col_offset=0)], lineno=1, col_offset=0),
ast.Import(names=[ast.alias(name='traceback', lineno=0, col_offset=0)], lineno=0, col_offset=1)
], type_ignores=[])
# Check that compilation doesn't crash. Note: this may crash explicitly only on debug mode.
compile(tree, "<string>", "exec")
def test_slice(self):
slc = ast.parse("x[::]").body[0].value.slice