openethereum/ethstore/src/error.rs

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use std::fmt;
use std::io::Error as IoError;
use ethkey::Error as EthKeyError;
#[derive(Debug)]
pub enum Error {
Io(IoError),
InvalidPassword,
InvalidSecret,
InvalidAccount,
CreationFailed,
EthKey(EthKeyError),
Custom(String),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
let s = match *self {
Error::Io(ref err) => format!("{}", err),
Error::InvalidPassword => "Invalid password".into(),
Error::InvalidSecret => "Invalid secret".into(),
Error::InvalidAccount => "Invalid account".into(),
Error::CreationFailed => "Account creation failed".into(),
Error::EthKey(ref err) => format!("{}", err),
Error::Custom(ref s) => s.clone(),
};
write!(f, "{}", s)
}
}
impl From<IoError> for Error {
fn from(err: IoError) -> Self {
Error::Io(err)
}
}
impl From<EthKeyError> for Error {
fn from(err: EthKeyError) -> Self {
Error::EthKey(err)
}
}