Panic: entered unreachable code: t-string: unexpected token FStringMiddle #23198
Description
Summary
Running
let s = "A1[A\u{c}\0:+,>1t'{:f\0:{f\"f\0:\0{fm\0:{f:\u{10}\0\0\0:bb\0{@f>f\u{1}'\0f";
let _ = ruff_python_parser::parse_module(s);is panicking with:
thread 'ruff_error' (266784) panicked at /Users/samuel/.cargo/git/checkouts/ruff-b18f69e2b025fac7/ce5f7b6/crates/ruff_python_parser/src/parser/expression.rs:1635:25:
internal error: entered unreachable code: t-string: unexpected token `FStringMiddle` at 31..41
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
I'm using the latest release 0.15.0.
Found by fuzzing in pydantic/monty#119
Another similar failure here
Version
using tag 0.15.0