use std::error::Error as StdError;
use std::fmt;
use std::str::Utf8Error;
use quick_xml::Error as XmlError;
#[derive(Debug)]
pub enum Error {
Utf8(Utf8Error),
Xml(XmlError),
InvalidStartTag,
Eof,
}
impl StdError for Error {
fn source(&self) -> Option<&(dyn StdError + 'static)> {
match *self {
Error::Utf8(ref err) => Some(err),
Error::Xml(ref err) => Some(err),
Error::InvalidStartTag | Error::Eof => None,
}
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::Utf8(ref err) => fmt::Display::fmt(err, f),
Error::Xml(ref err) => fmt::Display::fmt(err, f),
Error::InvalidStartTag => write!(f, "the input did not begin with an rss tag"),
Error::Eof => write!(f, "reached end of input without finding a complete channel"),
}
}
}
impl From<XmlError> for Error {
fn from(err: XmlError) -> Error {
Error::Xml(err)
}
}
impl From<Utf8Error> for Error {
fn from(err: Utf8Error) -> Error {
Error::Utf8(err)
}
}