pyo3/impl_/
panic.rs

1/// Type which will panic if dropped.
2///
3/// If this is dropped during a panic, this will cause an abort.
4///
5/// Use this to avoid letting unwinds cross through the FFI boundary, which is UB.
6pub struct PanicTrap {
7    msg: &'static str,
8}
9
10impl PanicTrap {
11    #[inline]
12    pub const fn new(msg: &'static str) -> Self {
13        Self { msg }
14    }
15
16    #[inline]
17    pub const fn disarm(self) {
18        std::mem::forget(self)
19    }
20}
21
22impl Drop for PanicTrap {
23    fn drop(&mut self) {
24        // Panic here will abort the process, assuming in an unwind.
25        panic!("{}", self.msg)
26    }
27}
pyo3/impl_/panic.rs

pyo3/impl_/
panic.rs
