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/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This software may be used and distributed according to the terms of the
 * GNU General Public License version 2.
 */

use serde::{de, ser};
use std::fmt::{self, Display};
use std::{self, error, io, str, string};

#[derive(Debug)]
pub struct Error {
    msg: String,
}

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

impl Error {
    pub fn new<T: Display>(msg: T) -> Self {
        Error {
            msg: msg.to_string(),
        }
    }
}

impl error::Error for Error {
    fn description(&self) -> &str {
        &self.msg
    }
}

impl Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str(&self.msg)
    }
}

impl ser::Error for Error {
    fn custom<T: Display>(msg: T) -> Self {
        Error::new(msg)
    }
}

impl de::Error for Error {
    fn custom<T: Display>(msg: T) -> Self {
        Error::new(msg)
    }
}

impl From<io::Error> for Error {
    fn from(err: io::Error) -> Self {
        Error::new(err)
    }
}

impl From<str::Utf8Error> for Error {
    fn from(err: str::Utf8Error) -> Self {
        Error::new(err)
    }
}

impl From<string::FromUtf8Error> for Error {
    fn from(err: string::FromUtf8Error) -> Self {
        Error::new(err)
    }
}