109 lines
2.7 KiB
Rust
109 lines
2.7 KiB
Rust
//! General error types for use in ethcore.
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use rustc_serialize::hex::FromHexError;
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use network::NetworkError;
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use rlp::DecoderError;
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use io;
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#[derive(Debug)]
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/// Error in database subsystem.
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pub enum BaseDataError {
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/// An entry was removed more times than inserted.
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NegativelyReferencedHash,
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}
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#[derive(Debug)]
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/// General error type which should be capable of representing all errors in ethcore.
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pub enum UtilError {
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/// Error concerning the crypto utility subsystem.
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Crypto(::crypto::CryptoError),
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/// Error concerning the Rust standard library's IO subsystem.
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StdIo(::std::io::Error),
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/// Error concerning our IO utility subsystem.
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Io(io::IoError),
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/// Error concerning the network address parsing subsystem.
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AddressParse(::std::net::AddrParseError),
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/// Error concerning the network address resolution subsystem.
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AddressResolve(Option<::std::io::Error>),
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/// Error concerning the hex conversion logic.
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FromHex(FromHexError),
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/// Error concerning the database abstraction logic.
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BaseData(BaseDataError),
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/// Error concerning the network subsystem.
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Network(NetworkError),
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/// Error concerning the RLP decoder.
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Decoder(DecoderError),
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/// Miscellaneous error described by a string.
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SimpleString(String),
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/// Error from a bad input size being given for the needed output.
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BadSize,
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}
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impl From<FromHexError> for UtilError {
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fn from(err: FromHexError) -> UtilError {
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UtilError::FromHex(err)
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}
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}
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impl From<BaseDataError> for UtilError {
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fn from(err: BaseDataError) -> UtilError {
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UtilError::BaseData(err)
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}
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}
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impl From<NetworkError> for UtilError {
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fn from(err: NetworkError) -> UtilError {
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UtilError::Network(err)
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}
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}
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impl From<::std::io::Error> for UtilError {
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fn from(err: ::std::io::Error) -> UtilError {
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UtilError::StdIo(err)
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}
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}
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impl From<io::IoError> for UtilError {
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fn from(err: io::IoError) -> UtilError {
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UtilError::Io(err)
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}
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}
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impl From<::crypto::CryptoError> for UtilError {
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fn from(err: ::crypto::CryptoError) -> UtilError {
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UtilError::Crypto(err)
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}
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}
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impl From<::std::net::AddrParseError> for UtilError {
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fn from(err: ::std::net::AddrParseError) -> UtilError {
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UtilError::AddressParse(err)
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}
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}
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impl From<::rlp::DecoderError> for UtilError {
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fn from(err: ::rlp::DecoderError) -> UtilError {
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UtilError::Decoder(err)
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}
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}
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impl From<String> for UtilError {
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fn from(err: String) -> UtilError {
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UtilError::SimpleString(err)
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}
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}
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// TODO: uncomment below once https://github.com/rust-lang/rust/issues/27336 sorted.
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/*#![feature(concat_idents)]
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macro_rules! assimilate {
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($name:ident) => (
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impl From<concat_idents!($name, Error)> for Error {
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fn from(err: concat_idents!($name, Error)) -> Error {
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Error:: $name (err)
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}
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}
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)
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}
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assimilate!(FromHex);
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assimilate!(BaseData);*/
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