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// error.rs
// *************************************************************************
// * Copyright (C) 2017-2018 Daniel Mueller (deso@posteo.net) *
// * *
// * This program is free software: you can redistribute it and/or modify *
// * it under the terms of the GNU General Public License as published by *
// * the Free Software Foundation, either version 3 of the License, or *
// * (at your option) any later version. *
// * *
// * This program is distributed in the hope that it will be useful, *
// * but WITHOUT ANY WARRANTY; without even the implied warranty of *
// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
// * GNU General Public License for more details. *
// * *
// * You should have received a copy of the GNU General Public License *
// * along with this program. If not, see <http://www.gnu.org/licenses/>. *
// *************************************************************************
use libhid;
use std::fmt;
use std::io;
use std::string;
#[derive(Debug)]
pub enum Error {
HidError(libhid::Error),
IoError(io::Error),
Utf8Error(string::FromUtf8Error),
Error(String),
}
impl From<libhid::Error> for Error {
fn from(e: libhid::Error) -> Error {
Error::HidError(e)
}
}
impl From<io::Error> for Error {
fn from(e: io::Error) -> Error {
Error::IoError(e)
}
}
impl From<string::FromUtf8Error> for Error {
fn from(e: string::FromUtf8Error) -> Error {
Error::Utf8Error(e)
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::HidError(ref e) => write!(f, "hidapi error: {}", e),
Error::Utf8Error(_) => write!(f, "Encountered UTF-8 conversion error"),
Error::IoError(ref e) => write!(f, "IO error: {}", e.get_ref().unwrap()),
Error::Error(ref e) => write!(f, "{}", e),
}
}
}
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