cpython/Grammar
Pablo Galindo 4a97b1517a
bpo-41690: Use a loop to collect args in the parser instead of recursion (GH-22053)
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 }] {
        [...] }
2020-09-02 17:44:19 +01:00
..
Tokens bpo-35975: Support parsing earlier minor versions of Python 3 (GH-12086) 2019-03-07 12:38:08 -08:00
python.gram bpo-41690: Use a loop to collect args in the parser instead of recursion (GH-22053) 2020-09-02 17:44:19 +01:00