Function ffi_helpers::panic::catch_panic

pub fn catch_panic<T, F>(func: F) -> Result<T, ()> where
    F: FnOnce() -> Result<T, Error> + UnwindSafe, 

Try to execute some function, catching any panics and translating them into errors to make sure Rust doesn’t unwind across the FFI boundary.

If the function returns an error or panics the Error is passed into update_last_error().