blob: fab934d7893f76bc8d42819f4ecdd102c365235a [file] [log] [blame]
#![allow(dead_code)]
use std::fmt::{self, Display};
use std::io;
use thiserror::Error;
macro_rules! unimplemented_display {
($ty:ty) => {
impl Display for $ty {
fn fmt(&self, _formatter: &mut fmt::Formatter) -> fmt::Result {
unimplemented!()
}
}
};
}
#[derive(Error, Debug)]
struct BracedError {
msg: String,
pos: usize,
}
#[derive(Error, Debug)]
struct TupleError(String, usize);
#[derive(Error, Debug)]
struct UnitError;
#[derive(Error, Debug)]
struct WithSource {
#[source]
cause: io::Error,
}
#[derive(Error, Debug)]
struct WithAnyhow {
#[source]
cause: anyhow::Error,
}
#[derive(Error, Debug)]
enum EnumError {
Braced {
#[source]
cause: io::Error,
},
Tuple(#[source] io::Error),
Unit,
}
unimplemented_display!(BracedError);
unimplemented_display!(TupleError);
unimplemented_display!(UnitError);
unimplemented_display!(WithSource);
unimplemented_display!(WithAnyhow);
unimplemented_display!(EnumError);