148 lines
3.9 KiB
Rust
148 lines
3.9 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
|
|
// This file is part of Parity.
|
|
|
|
// Parity is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// Parity is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//! General error types for use in ethcore.
|
|
|
|
use rustc_serialize::hex::FromHexError;
|
|
use network::NetworkError;
|
|
use rlp::DecoderError;
|
|
use io;
|
|
use std::fmt;
|
|
use hash::H256;
|
|
|
|
#[derive(Debug)]
|
|
/// Error in database subsystem.
|
|
pub enum BaseDataError {
|
|
/// An entry was removed more times than inserted.
|
|
NegativelyReferencedHash(H256),
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
/// General error type which should be capable of representing all errors in ethcore.
|
|
pub enum UtilError {
|
|
/// Error concerning the crypto utility subsystem.
|
|
Crypto(::crypto::CryptoError),
|
|
/// Error concerning the Rust standard library's IO subsystem.
|
|
StdIo(::std::io::Error),
|
|
/// Error concerning our IO utility subsystem.
|
|
Io(io::IoError),
|
|
/// Error concerning the network address parsing subsystem.
|
|
AddressParse(::std::net::AddrParseError),
|
|
/// Error concerning the network address resolution subsystem.
|
|
AddressResolve(Option<::std::io::Error>),
|
|
/// Error concerning the hex conversion logic.
|
|
FromHex(FromHexError),
|
|
/// Error concerning the database abstraction logic.
|
|
BaseData(BaseDataError),
|
|
/// Error concerning the network subsystem.
|
|
Network(NetworkError),
|
|
/// Error concerning the RLP decoder.
|
|
Decoder(DecoderError),
|
|
/// Miscellaneous error described by a string.
|
|
SimpleString(String),
|
|
/// Error from a bad input size being given for the needed output.
|
|
BadSize,
|
|
}
|
|
|
|
|
|
#[derive(Debug, PartialEq, Eq)]
|
|
/// Error indicating an expected value was not found.
|
|
pub struct Mismatch<T: fmt::Debug> {
|
|
/// Value expected.
|
|
pub expected: T,
|
|
/// Value found.
|
|
pub found: T,
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Eq)]
|
|
/// Error indicating value found is outside of a valid range.
|
|
pub struct OutOfBounds<T: fmt::Debug> {
|
|
/// Minimum allowed value.
|
|
pub min: Option<T>,
|
|
/// Maximum allowed value.
|
|
pub max: Option<T>,
|
|
/// Value found.
|
|
pub found: T,
|
|
}
|
|
|
|
impl From<FromHexError> for UtilError {
|
|
fn from(err: FromHexError) -> UtilError {
|
|
UtilError::FromHex(err)
|
|
}
|
|
}
|
|
|
|
impl From<BaseDataError> for UtilError {
|
|
fn from(err: BaseDataError) -> UtilError {
|
|
UtilError::BaseData(err)
|
|
}
|
|
}
|
|
|
|
impl From<NetworkError> for UtilError {
|
|
fn from(err: NetworkError) -> UtilError {
|
|
UtilError::Network(err)
|
|
}
|
|
}
|
|
|
|
impl From<::std::io::Error> for UtilError {
|
|
fn from(err: ::std::io::Error) -> UtilError {
|
|
UtilError::StdIo(err)
|
|
}
|
|
}
|
|
|
|
impl From<io::IoError> for UtilError {
|
|
fn from(err: io::IoError) -> UtilError {
|
|
UtilError::Io(err)
|
|
}
|
|
}
|
|
|
|
impl From<::crypto::CryptoError> for UtilError {
|
|
fn from(err: ::crypto::CryptoError) -> UtilError {
|
|
UtilError::Crypto(err)
|
|
}
|
|
}
|
|
|
|
impl From<::std::net::AddrParseError> for UtilError {
|
|
fn from(err: ::std::net::AddrParseError) -> UtilError {
|
|
UtilError::AddressParse(err)
|
|
}
|
|
}
|
|
|
|
impl From<::rlp::DecoderError> for UtilError {
|
|
fn from(err: ::rlp::DecoderError) -> UtilError {
|
|
UtilError::Decoder(err)
|
|
}
|
|
}
|
|
|
|
impl From<String> for UtilError {
|
|
fn from(err: String) -> UtilError {
|
|
UtilError::SimpleString(err)
|
|
}
|
|
}
|
|
|
|
// TODO: uncomment below once https://github.com/rust-lang/rust/issues/27336 sorted.
|
|
/*#![feature(concat_idents)]
|
|
macro_rules! assimilate {
|
|
($name:ident) => (
|
|
impl From<concat_idents!($name, Error)> for Error {
|
|
fn from(err: concat_idents!($name, Error)) -> Error {
|
|
Error:: $name (err)
|
|
}
|
|
}
|
|
)
|
|
}
|
|
assimilate!(FromHex);
|
|
assimilate!(BaseData);*/
|