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use hdwallet;
use rpc;
use rustc_serialize::json;
use std::{error, fmt, io};
#[derive(Debug)]
pub enum Error {
UnsupportedVersion(u8),
IO(io::Error),
InvalidDecoding(json::DecoderError),
InvalidEncoding(json::EncoderError),
NotFound,
InvalidCrypto(String),
}
impl From<Error> for rpc::Error {
fn from(_err: Error) -> Self {
rpc::Error::InvalidDataFormat("Invalid serialization for keystore".to_string())
}
}
impl From<io::Error> for Error {
fn from(err: io::Error) -> Self {
Error::IO(err)
}
}
impl From<json::EncoderError> for Error {
fn from(err: json::EncoderError) -> Self {
Error::InvalidEncoding(err)
}
}
impl From<json::DecoderError> for Error {
fn from(err: json::DecoderError) -> Self {
Error::InvalidDecoding(err)
}
}
impl From<hdwallet::Error> for Error {
fn from(err: hdwallet::Error) -> Self {
Error::InvalidCrypto(err.to_string())
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::UnsupportedVersion(v) => write!(f, "Unsupported keystore file version: {}", v),
Error::IO(ref err) => write!(f, "Keystore file IO error: {}", err),
Error::InvalidDecoding(ref err) => write!(f, "Invalid keystore file decoding: {}", err),
Error::InvalidEncoding(ref err) => write!(f, "Invalid keystore file encoding: {}", err),
Error::NotFound => f.write_str("Required keystore file wasn't found"),
Error::InvalidCrypto(ref str) => {
f.write_str(&format!("Can't parse `crypto` section for. {}", str))
}
}
}
}
impl error::Error for Error {
fn description(&self) -> &str {
"Keystore file serialize error"
}
fn cause(&self) -> Option<&error::Error> {
match *self {
_ => None,
}
}
}