git2/
panic.rs

1use std::any::Any;
2use std::cell::RefCell;
3
4thread_local!(static LAST_ERROR: RefCell<Option<Box<dyn Any + Send>>> = {
5    RefCell::new(None)
6});
7
8pub fn wrap<T, F: FnOnce() -> T + std::panic::UnwindSafe>(f: F) -> Option<T> {
9    use std::panic;
10    if LAST_ERROR.with(|slot| slot.borrow().is_some()) {
11        return None;
12    }
13    match panic::catch_unwind(f) {
14        Ok(ret) => Some(ret),
15        Err(e) => {
16            LAST_ERROR.with(move |slot| {
17                *slot.borrow_mut() = Some(e);
18            });
19            None
20        }
21    }
22}
23
24pub fn check() {
25    let err = LAST_ERROR.with(|slot| slot.borrow_mut().take());
26    if let Some(err) = err {
27        std::panic::resume_unwind(err);
28    }
29}
30
31pub fn panicked() -> bool {
32    LAST_ERROR.with(|slot| slot.borrow().is_some())
33}
git2/panic.rs

git2/
panic.rs
