/// Used as a return value to signify a fatal error occurred.
#[derive(Copy, Clone, Debug)]
#[must_use]
pub struct FatalError;
pub use rustc_data_structures::FatalErrorMarker;
// Don't implement Send on FatalError. This makes it impossible to `panic_any!(FatalError)`.
// We don't want to invoke the panic handler and print a backtrace for fatal errors.
impl !Send for FatalError {}
impl FatalError {
pub fn raise(self) -> ! {
std::panic::resume_unwind(Box::new(FatalErrorMarker))
}
}
impl std::fmt::Display for FatalError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "fatal error")
}
}
impl std::error::Error for FatalError {}