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[3.13] gh-119933: Improve `SyntaxError` message for invalid type parameters expressions (GH-119976) (#120641)

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(cherry picked from commit 4bf17c381f)

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
This commit is contained in:
Jelle Zijlstra 2024-06-17 08:01:49 -07:00 • committed by GitHub
parent 03b89e3a3d
commit 7c47f93dff
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9 changed files with 277 additions and 55 deletions
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12
Lib/test/test_symtable.py
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@ -49,7 +49,7 @@ type GenericAlias[T] = list[T]
def generic_spam[T](a):
pass
class GenericMine[T: int]:
class GenericMine[T: int, U: (int, str) = int]:
pass
"""
@ -78,6 +78,7 @@ class SymtableTest(unittest.TestCase):
GenericMine = find_block(top, "GenericMine")
GenericMine_inner = find_block(GenericMine, "GenericMine")
T = find_block(GenericMine, "T")
U = find_block(GenericMine, "U")
def test_type(self):
self.assertEqual(self.top.get_type(), "module")
@ -87,13 +88,14 @@ class SymtableTest(unittest.TestCase):
self.assertEqual(self.internal.get_type(), "function")
self.assertEqual(self.foo.get_type(), "function")
self.assertEqual(self.Alias.get_type(), "type alias")
self.assertEqual(self.GenericAlias.get_type(), "type parameter")
self.assertEqual(self.GenericAlias.get_type(), "type parameters")
self.assertEqual(self.GenericAlias_inner.get_type(), "type alias")
self.assertEqual(self.generic_spam.get_type(), "type parameter")
self.assertEqual(self.generic_spam.get_type(), "type parameters")
self.assertEqual(self.generic_spam_inner.get_type(), "function")
self.assertEqual(self.GenericMine.get_type(), "type parameter")
self.assertEqual(self.GenericMine.get_type(), "type parameters")
self.assertEqual(self.GenericMine_inner.get_type(), "class")
self.assertEqual(self.T.get_type(), "TypeVar bound")
self.assertEqual(self.T.get_type(), "type variable")
self.assertEqual(self.U.get_type(), "type variable")
def test_id(self):
self.assertGreater(self.top.get_id(), 0)