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// Copyright 2022-2023 Andrew D. Straw.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT
// or http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.

use std::fmt::{self, Display};

pub type Result<T> = std::result::Result<T, Error>;

#[derive(Debug)]
pub enum Error {
    InvalidID,
    InvalidSize,
    BufSizeError(usize),
    Io(std::io::Error),
    Eof,
}

impl Display for Error {
    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
        match self {
            Error::Eof => formatter.write_str("unexpected end of input"),
            other => {
                write!(formatter, "{other:?}")
            } /* and so forth */
        }
    }
}

impl std::error::Error for Error {}