1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
use std::{ error::Error, fmt::Display, }; #[derive(Clone, Debug)] pub struct ParseFail; impl Display for ParseFail { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { writeln!(f, "Parse Failed") } } impl Error for ParseFail {}