1 use alloc::boxed::Box; 2 use core::fmt::{self, Display}; 3 4 /// Exception thrown from an `extern "C++"` function. 5 #[derive(Debug)] 6 pub struct Exception { 7 pub(crate) what: Box<str>, 8 } 9 10 impl Display for Exception { fmt(&self, f: &mut fmt::Formatter) -> fmt::Result11 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { 12 f.write_str(&self.what) 13 } 14 } 15 16 impl std::error::Error for Exception {} 17 18 impl Exception { 19 #[allow(missing_docs)] what(&self) -> &str20 pub fn what(&self) -> &str { 21 &self.what 22 } 23 } 24