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bpo-40334: Support CO_FUTURE_BARRY_AS_BDFL in the new parser (GH-19721)

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This commit also allows to pass flags to the new parser in all interfaces and fixes a bug in the parser generator that was causing to inline rules with actions, making them disappear.
This commit is contained in:
Pablo Galindo 2020-04-27 18:02:07 +01:00 • committed by GitHub
parent 9adccc1384
commit 2b74c835a7
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GPG key ID: 4AEE18F83AFDEB23
12 changed files with 578 additions and 468 deletions
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16
Lib/test/test_flufl.py
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@ -4,7 +4,6 @@ import sys
from test import support
@support.skip_if_new_parser("Not supported by pegen yet")
class FLUFLTests(unittest.TestCase):
def test_barry_as_bdfl(self):
@ -16,10 +15,13 @@ class FLUFLTests(unittest.TestCase):
__future__.CO_FUTURE_BARRY_AS_BDFL)
self.assertRegex(str(cm.exception),
"with Barry as BDFL, use '<>' instead of '!='")
self.assertEqual(cm.exception.text, '2 != 3\n')
self.assertIn('2 != 3', cm.exception.text)
self.assertEqual(cm.exception.filename, '<FLUFL test>')
self.assertEqual(cm.exception.lineno, 2)
self.assertEqual(cm.exception.offset, 4)
self.assertTrue(cm.exception.lineno, 2)
# The old parser reports the end of the token and the new
# parser reports the start of the token
self.assertEqual(cm.exception.offset, 4 if support.use_old_parser() else 3)
def test_guido_as_bdfl(self):
code = '2 {0} 3'
@ -27,10 +29,12 @@ class FLUFLTests(unittest.TestCase):
with self.assertRaises(SyntaxError) as cm:
compile(code.format('<>'), '<FLUFL test>', 'exec')
self.assertRegex(str(cm.exception), "invalid syntax")
self.assertEqual(cm.exception.text, '2 <> 3\n')
self.assertIn('2 <> 3', cm.exception.text)
self.assertEqual(cm.exception.filename, '<FLUFL test>')
self.assertEqual(cm.exception.lineno, 1)
self.assertEqual(cm.exception.offset, 4)
# The old parser reports the end of the token and the new
# parser reports the start of the token
self.assertEqual(cm.exception.offset, 4 if support.use_old_parser() else 3)
if __name__ == '__main__':