如何捕获Rust的swap_with_slice（）vec方法中是否发生错误？

Question

The documentation tells me that the swap_with_slice() method can potentially panic if the slices are of two different lengths. I am writing a parser which deals with data coming across TCP. My encoding scheme is such that the following should never panic, unless it is a malformed request. In this case, I don't want my programme to crash, but instead handle the error. How do I capture whether swap_with_slice panics or not? Since it itself does not return a Result?

let mut bytes_id = [0; 16];
bytes_id.swap_with_slice(&mut self.raw_bytes[Headers::MessageLength as usize..Headers::Data as usize]);

Answer 1

这应该工作

let result = std::panic::catch_unwind(|| <expected_to_panic_operation_here>);