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bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)

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Co-authored-by: Guido van Rossum <guido@python.org>
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
This commit is contained in:
Pablo Galindo 2020-04-22 23:29:27 +01:00 • committed by GitHub
parent a81849b031
commit c5fc156852
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91 changed files with 27057 additions and 146 deletions
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4
Lib/test/test_parser.py
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@ -8,6 +8,7 @@ import pickle
import unittest
import operator
import struct
import sys
from test import support
from test.support.script_helper import assert_python_failure
from test.support.script_helper import assert_python_ok
@ -899,9 +900,10 @@ class ParserStackLimitTestCase(unittest.TestCase):
st = parser.expr(e)
st.compile()
@unittest.skipIf(sys.flags.use_peg, "Pegen does not trigger memory error with this many parenthesis")
def test_trigger_memory_error(self):
e = self._nested_expression(100)
rc, out, err = assert_python_failure('-c', e)
rc, out, err = assert_python_failure('-Xoldparser', '-c', e)
# parsing the expression will result in an error message
# followed by a MemoryError (see #11963)
self.assertIn(b's_push: parser stack overflow', err)