56 lines
1.4 KiB
Rust
56 lines
1.4 KiB
Rust
// Copyright 2015-2018 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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use std::fmt::{Display, Formatter, Error as FmtError};
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use std::io;
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use ethtrie::TrieError;
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/// Client configuration errors.
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#[derive(Debug)]
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pub enum Error {
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/// TrieDB-related error.
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Trie(TrieError),
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/// Io error.
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Io(io::Error),
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}
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impl From<TrieError> for Error {
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fn from(err: TrieError) -> Self {
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Error::Trie(err)
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}
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}
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impl From<io::Error> for Error {
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fn from(err: io::Error) -> Self {
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Error::Io(err)
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}
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}
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impl<E> From<Box<E>> for Error where Error: From<E> {
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fn from(err: Box<E>) -> Self {
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Error::from(*err)
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}
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}
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impl Display for Error {
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fn fmt(&self, f: &mut Formatter) -> Result<(), FmtError> {
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match *self {
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Error::Trie(ref err) => write!(f, "{}", err),
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Error::Io(ref err) => write!(f, "{}", err),
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}
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}
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}
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