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[3.12] gh-109341: Fix crash on compiling invalid AST including TypeAlias (GH-109349) (#109381)

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gh-109341: Fix crash on compiling invalid AST including TypeAlias (GH-109349)
(cherry picked from commit 987b4bc087)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
This commit is contained in:
Miss Islington (bot) 2023-09-14 15:40:19 -07:00 • committed by GitHub
parent 36d6ba08d0
commit 5c7e8c3b72
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3 changed files with 26 additions and 0 deletions
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Python/ast.c
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@ -768,6 +768,11 @@ validate_stmt(struct validator *state, stmt_ty stmt)
validate_expr(state, stmt->v.AnnAssign.annotation, Load);
break;
case TypeAlias_kind:
if (stmt->v.TypeAlias.name->kind != Name_kind) {
PyErr_SetString(PyExc_TypeError,
"TypeAlias with non-Name name");
return 0;
}
ret = validate_expr(state, stmt->v.TypeAlias.name, Store) &&
validate_type_params(state, stmt->v.TypeAlias.type_params) &&
validate_expr(state, stmt->v.TypeAlias.value, Load);