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use std::{fmt, error, io};
use multibase;
use multihash;
pub type Result<T> = ::std::result::Result<T, Error>;
#[derive(PartialEq, Eq, Clone, Copy, Debug)]
pub enum Error {
UnknownCodec,
InputTooShort,
ParsingError,
InvalidSscidVersion,
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(error::Error::description(self))
}
}
impl error::Error for Error {
fn description(&self) -> &str {
use self::Error::*;
match *self {
UnknownCodec => "Unknown codec",
InputTooShort => "Input too short",
ParsingError => "Failed to parse multihash",
InvalidSscidVersion => "Unrecognized SCID version",
}
}
}
impl From<io::Error> for Error {
fn from(_: io::Error) -> Error {
Error::ParsingError
}
}
impl From<multibase::Error> for Error {
fn from(_: multibase::Error) -> Error {
Error::ParsingError
}
}
impl From<multihash::Error> for Error {
fn from(_: multihash::Error) -> Error {
Error::ParsingError
}
}
impl From<Error> for fmt::Error {
fn from(_: Error) -> fmt::Error {
fmt::Error {}
}
}