test_check_c_globals "crashed" and then "FutureWarning: Possible nested set at position 12" #88949
Comments
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% ./python.exe -E -We -m test -v test_check_c_globals ... test test_check_c_globals crashed -- Traceback (most recent call last):
File "/Users/iritkatriel/src/cpython-1/Lib/test/libregrtest/runtest.py", line 335, in _runtest_inner
refleak = _runtest_inner2(ns, test_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/test/libregrtest/runtest.py", line 280, in _runtest_inner2
the_module = importlib.import_module(abstest)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1061, in _gcd_import
File "<frozen importlib._bootstrap>", line 1038, in _find_and_load
File "<frozen importlib._bootstrap>", line 1015, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 689, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 894, in exec_module
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "/Users/iritkatriel/src/cpython-1/Lib/test/test_check_c_globals.py", line 6, in <module>
from cpython.__main__ import main
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Tools/c-analyzer/cpython/__main__.py", line 18, in <module>
from c_parser.info import KIND
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Tools/c-analyzer/c_parser/__init__.py", line 1, in <module>
from .parser import parse as _parse
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Tools/c-analyzer/c_parser/parser/__init__.py", line 119, in <module>
from ..info import ParsedItem
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Tools/c-analyzer/c_parser/info.py", line 10, in <module>
import c_common.tables as _tables
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Tools/c-analyzer/c_common/tables.py", line 236, in <module>
_COLSPEC_RE = re.compile(textwrap.dedent(r'''
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/re.py", line 229, in compile
return _compile(pattern, flags)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/re.py", line 281, in _compile
p = sre_compile.compile(pattern, flags)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/sre_compile.py", line 764, in compile
p = sre_parse.parse(p, flags)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/sre_parse.py", line 948, in parse
p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/sre_parse.py", line 443, in _parse_sub
itemsappend(_parse(source, state, verbose, nested + 1,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/sre_parse.py", line 834, in _parse
p = _parse_sub(source, state, sub_verbose, nested + 1)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/sre_parse.py", line 443, in _parse_sub
itemsappend(_parse(source, state, verbose, nested + 1,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/iritkatriel/src/cpython-1/Lib/sre_parse.py", line 540, in _parse
warnings.warn(
^^^^^^^^^^^^^^
FutureWarning: Possible nested set at position 12test_check_c_globals failed (uncaught exception) |
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The warning comes from this regex: Tools/c-analyzer/c_common/tables.py", line 236 _COLSPEC_RE = re.compile(textwrap.dedent(r'''
^
(?:
[[]
(
(?: [^\s\]] [^\]]* )?
[^\s\]]
) # <label>
[]]
)?
( \w+ ) # <field>
(?:
(?:
:
( [<^>] ) # <align>
( \d+ ) # <width1>
)
|
(?:
(?:
:
( \d+ ) # <width2>
)?
(?:
:
( .*? ) # <fmt>
)?
)
)?
$
'''), re.VERBOSE) |
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Yes, [[] looks as the start of a character set containing nested sets (e.g. "[[a-z]--[p-q]]"). This feature is supported by regex and can be added in future versions of re, breaking the code which contain such combinations. |
serhiy-storchaka
added
type-bug
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