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use std::{fmt, error};
use rustc_hex::*;
#[derive(Debug)]
pub enum Error {
InvalidSecretKey,
InvalidPublicKey,
InvalidBufferLength,
Io(::std::io::Error),
Custom(String),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let msg = match *self {
Error::InvalidSecretKey => "Invalid secret key".into(),
Error::InvalidPublicKey => "Invalid public key".into(),
Error::InvalidBufferLength => "Invalid buffer length".into(),
Error::Io(ref err) => format!("I/O error: {}", err),
Error::Custom(ref s) => s.clone(),
};
f.write_fmt(format_args!("Crypto error ({})", msg))
}
}
impl error::Error for Error {
fn description(&self) -> &str {
"Crypto error"
}
}
impl Into<String> for Error {
fn into(self) -> String {
format!("{}", self)
}
}
impl From<::std::io::Error> for Error {
fn from(err: ::std::io::Error) -> Error {
Error::Io(err)
}
}