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use base::ErrorCode;
use failure::{Backtrace, Context, Fail};
use serialport;
use std::fmt;
#[derive(Debug)]
pub struct Error {
inner: Context<ErrorKind>,
}
impl Fail for Error {
fn cause(&self) -> Option<&Fail> {
self.inner.cause()
}
fn backtrace(&self) -> Option<&Backtrace> {
self.inner.backtrace()
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Display::fmt(&self.inner, f)
}
}
impl Error {
pub fn kind(&self) -> ErrorKind {
*self.inner.get_context()
}
}
impl From<ErrorKind> for Error {
fn from(kind: ErrorKind) -> Error {
Error {
inner: Context::new(kind),
}
}
}
impl From<Context<ErrorKind>> for Error {
fn from(inner: Context<ErrorKind>) -> Error {
Error { inner }
}
}
#[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
pub enum ErrorKind {
#[fail(display = "timeout")]
Timeout,
#[fail(display = "channel sender disconnected")]
ChannelSenderDisconnected,
#[fail(display = "channel receiver disconnected")]
ChannelReceiverDisconnected,
#[fail(display = "thread creation error")]
ThreadCreation,
#[fail(display = "serial port error")]
SerialPort,
#[fail(display = "unexpected response type")]
UnexpectedResponseType,
#[fail(display = "programmer error")]
ProgrammerError,
#[fail(display = "xio error {:#x} ({:?})", _0, _0)]
Xio(ErrorCode),
#[fail(display = "io error")]
Io,
#[fail(display = "xio request response sequence error")]
XioSequenceError,
}
impl From<serialport::Error> for Error {
fn from(e: serialport::Error) -> Error {
e.context(ErrorKind::SerialPort).into()
}
}
impl From<std::io::Error> for Error {
fn from(e: std::io::Error) -> Error {
match e.kind() {
std::io::ErrorKind::TimedOut => {
e.context(ErrorKind::Timeout).into()
}
_ => e.context(ErrorKind::Io).into(),
}
}
}
impl From<ErrorCode> for Error {
fn from(c: ErrorCode) -> Error {
ErrorKind::Xio(c).into()
}
}