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use std::fmt::{Display, Formatter, Error as FmtError};
use std::io;
use ethtrie::TrieError;
#[derive(Debug)]
pub enum Error {
Trie(TrieError),
Io(io::Error),
}
impl From<TrieError> for Error {
fn from(err: TrieError) -> Self {
Error::Trie(err)
}
}
impl From<io::Error> for Error {
fn from(err: io::Error) -> Self {
Error::Io(err)
}
}
impl<E> From<Box<E>> for Error where Error: From<E> {
fn from(err: Box<E>) -> Self {
Error::from(*err)
}
}
impl Display for Error {
fn fmt(&self, f: &mut Formatter) -> Result<(), FmtError> {
match *self {
Error::Trie(ref err) => write!(f, "{}", err),
Error::Io(ref err) => write!(f, "{}", err),
}
}
}