v0.8.1
https://github.com/python/cpython
[3.9] bpo-41690: Use a loop to collect args in the parser instead of recursion (GH-22053) (GH-22067)
This program can segfault the parser by stack overflow: ``` import ast code = "f(" + ",".join(['a' for _ in range(100000)]) + ")" print("Ready!") ast.parse(code) ``` the reason is that the rule for arguments has a simple recursion when collecting args: args[expr_ty]: [...] | a=named_expression b=[',' c=args { c }] { [...] }. (cherry picked from commit 4a97b1517a6b5ff22e2984b677a680b07ff0ce11) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
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[3.9] bpo-41690: Use a loop to collect args in the parser instead of recursion (GH-22053) (GH-22067)
File | Mode | Size |
---|---|---|
Grammar | -rw-r--r-- | 9.6 KB |
Tokens | -rw-r--r-- | 1.5 KB |
python.gram | -rw-r--r-- | 31.2 KB |
Computing file changes ...