use std::convert::From; use std::io; use base64; use minidom; #[derive(Debug)] pub enum Error { ParseError(&'static str), IoError(io::Error), XMLError(minidom::Error), Base64Error(base64::Base64Error), } impl From for Error { fn from(err: io::Error) -> Error { Error::IoError(err) } } impl From for Error { fn from(err: minidom::Error) -> Error { Error::XMLError(err) } } impl From for Error { fn from(err: base64::Base64Error) -> Error { Error::Base64Error(err) } }