https://github.com/python/cpython/commit/c6ef5aca614e3ee1cfe4125148d80e0e0bd77462 commit: c6ef5aca614e3ee1cfe4125148d80e0e0bd77462 branch: 3.13 author: Miss Islington (bot) <[email protected]> committer: JelleZijlstra <[email protected]> date: 2024-07-17T13:54:40Z summary:
[3.13] gh-119698: fix a special case in `symtable.Class.get_methods` (GH-121802) (#121909) (cherry picked from commit 6682d916780c1cb305e679a057ee6992b114118e) Co-authored-by: Bénédikt Tran <[email protected]> files: M Lib/symtable.py M Lib/test/test_symtable.py diff --git a/Lib/symtable.py b/Lib/symtable.py index 73e9fb318ad917..672ec0ce1ff8fe 100644 --- a/Lib/symtable.py +++ b/Lib/symtable.py @@ -238,6 +238,11 @@ def is_local_symbol(ident): if is_local_symbol(st.name): match st.type: case _symtable.TYPE_FUNCTION: + # generators are of type TYPE_FUNCTION with a ".0" + # parameter as a first parameter (which makes them + # distinguishable from a function named 'genexpr') + if st.name == 'genexpr' and '.0' in st.varnames: + continue d[st.name] = 1 case _symtable.TYPE_TYPE_PARAMETERS: # Get the function-def block in the annotation @@ -245,7 +250,14 @@ def is_local_symbol(ident): scope_name = st.name for c in st.children: if c.name == scope_name and c.type == _symtable.TYPE_FUNCTION: - d[st.name] = 1 + # A generic generator of type TYPE_FUNCTION + # cannot be a direct child of 'st' (but it + # can be a descendant), e.g.: + # + # class A: + # type genexpr[genexpr] = (x for x in []) + assert scope_name != 'genexpr' or '.0' not in c.varnames + d[scope_name] = 1 break self.__methods = tuple(d) return self.__methods diff --git a/Lib/test/test_symtable.py b/Lib/test/test_symtable.py index 2443898c981a00..c1b7030d2d250c 100644 --- a/Lib/test/test_symtable.py +++ b/Lib/test/test_symtable.py @@ -1,6 +1,8 @@ """ Test the API of the symtable module. """ + +import textwrap import symtable import unittest @@ -354,7 +356,7 @@ def test_name(self): self.assertEqual(self.spam.lookup("x").get_name(), "x") self.assertEqual(self.Mine.get_name(), "Mine") - def test_class_info(self): + def test_class_get_methods(self): self.assertEqual(self.Mine.get_methods(), ('a_method',)) top = symtable.symtable(TEST_COMPLEX_CLASS_CODE, "?", "exec") @@ -375,6 +377,58 @@ def test_class_info(self): 'glob_assigned_async_meth', 'glob_assigned_async_meth_pep_695', )) + # Test generator expressions that are of type TYPE_FUNCTION + # but will not be reported by get_methods() since they are + # not functions per se. + # + # Other kind of comprehensions such as list, set or dict + # expressions do not have the TYPE_FUNCTION type. + + def check_body(body, expected_methods): + indented = textwrap.indent(body, ' ' * 4) + top = symtable.symtable(f"class A:\n{indented}", "?", "exec") + this = find_block(top, "A") + self.assertEqual(this.get_methods(), expected_methods) + + # statements with 'genexpr' inside it + GENEXPRS = ( + 'x = (x for x in [])', + 'x = (x async for x in [])', + 'type x[genexpr = (x for x in [])] = (x for x in [])', + 'type x[genexpr = (x async for x in [])] = (x async for x in [])', + 'genexpr = (x for x in [])', + 'genexpr = (x async for x in [])', + 'type genexpr[genexpr = (x for x in [])] = (x for x in [])', + 'type genexpr[genexpr = (x async for x in [])] = (x async for x in [])', + ) + + for gen in GENEXPRS: + # test generator expression + with self.subTest(gen=gen): + check_body(gen, ()) + + # test generator expression + variable named 'genexpr' + with self.subTest(gen=gen, isvar=True): + check_body('\n'.join((gen, 'genexpr = 1')), ()) + check_body('\n'.join(('genexpr = 1', gen)), ()) + + for paramlist in ('()', '(x)', '(x, y)', '(z: T)'): + for func in ( + f'def genexpr{paramlist}:pass', + f'async def genexpr{paramlist}:pass', + f'def genexpr[T]{paramlist}:pass', + f'async def genexpr[T]{paramlist}:pass', + ): + with self.subTest(func=func): + # test function named 'genexpr' + check_body(func, ('genexpr',)) + + for gen in GENEXPRS: + with self.subTest(gen=gen, func=func): + # test generator expression + function named 'genexpr' + check_body('\n'.join((gen, func)), ('genexpr',)) + check_body('\n'.join((func, gen)), ('genexpr',)) + def test_filename_correct(self): ### Bug tickler: SyntaxError file name correct whether error raised ### while parsing or building symbol table. _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-checkins.python.org/ Member address: [email protected]
