oioioi

原始版本: https://github.com/casey/oi

#[macro_use]
extern crate oioioi;

use std::fmt;

pub type Error = oioioi::SpannedError<MyError>;

pub struct MyError {
    message: String,
}

impl MyError {
    pub fn new<M: Into<String>>(m: M) -> Self {
        Self { message: m.into() }
    }
}

impl fmt::Display for MyError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        writeln!(f, "{:?}", self)
    }
}

impl fmt::Debug for MyError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        writeln!(f, "{}", self.message)
    }
}

fn run() -> Result<(), Error> {
    spanned_err!(MyError::new("又一个错误 :D"))
}

fn main() {
    if let Err(e) = run() {
        println!("{:?}", e);
    }
}

    Compiling oioioi v0.1.0 (/Users/luozijun/Project/oioioi)
      Finished dev [unoptimized + debuginfo] target(s) in 0.89s
        Running `target/debug/examples/oi`

examples/oi.rs:40:5 #oi: 又一个错误 :D

LuoZijun/oioioi

oioioi