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use std::error;
use std::fmt;
use std::io;
use std::num::{ParseIntError, ParseFloatError};
use byteorder;
#[derive(Debug)]
pub enum Error {
Byteorder(byteorder::Error),
Extrapolation(String),
InvalidTimeInfo(u8),
InvalidTimeUnit(u8),
Io(io::Error),
ParseFloat(ParseFloatError),
ParseInt(ParseIntError),
}
impl error::Error for Error {
fn description(&self) -> &str {
match *self {
Error::Byteorder(ref err) => err.description(),
Error::Extrapolation(_) => "extrapolation",
Error::InvalidTimeInfo(_) => "invalid time info",
Error::InvalidTimeUnit(_) => "invalid time unit",
Error::Io(ref err) => err.description(),
Error::ParseFloat(ref err) => err.description(),
Error::ParseInt(ref err) => err.description(),
}
}
fn cause(&self) -> Option<&error::Error> {
match *self {
Error::Byteorder(ref err) => Some(err),
Error::Io(ref err) => Some(err),
Error::ParseFloat(ref err) => Some(err),
Error::ParseInt(ref err) => Some(err),
_ => None,
}
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::Byteorder(ref err) => write!(f, "byteorder error: {}", err),
Error::Extrapolation(ref s) => write!(f, "extrapolation error: {}", s),
Error::InvalidTimeInfo(n) => write!(f, "invalid time info: {}", n),
Error::InvalidTimeUnit(n) => write!(f, "invalid time unit: {}", n),
Error::Io(ref err) => write!(f, "IO error: {}", err),
Error::ParseFloat(ref err) => write!(f, "parse float error: {}", err),
Error::ParseInt(ref err) => write!(f, "parse int error: {}", err),
}
}
}
impl From<byteorder::Error> for Error {
fn from(err: byteorder::Error) -> Error {
Error::Byteorder(err)
}
}
impl From<io::Error> for Error {
fn from(err: io::Error) -> Error {
Error::Io(err)
}
}
impl From<ParseFloatError> for Error {
fn from(err: ParseFloatError) -> Error {
Error::ParseFloat(err)
}
}
impl From<ParseIntError> for Error {
fn from(err: ParseIntError) -> Error {
Error::ParseInt(err)
}
}