65 lines
2.1 KiB
Rust
65 lines
2.1 KiB
Rust
// Copyright 2015-2017 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;
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use std::error::Error as StdError;
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use bytes::FromBytesError;
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#[derive(Debug, PartialEq, Eq)]
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/// Error concerning the RLP decoder.
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pub enum DecoderError {
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/// Couldn't convert given bytes to an instance of required type.
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FromBytesError(FromBytesError),
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/// Data has additional bytes at the end of the valid RLP fragment.
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RlpIsTooBig,
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/// Data has too few bytes for valid RLP.
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RlpIsTooShort,
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/// Expect an encoded list, RLP was something else.
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RlpExpectedToBeList,
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/// Expect encoded data, RLP was something else.
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RlpExpectedToBeData,
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/// Expected a different size list.
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RlpIncorrectListLen,
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/// Data length number has a prefixed zero byte, invalid for numbers.
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RlpDataLenWithZeroPrefix,
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/// List length number has a prefixed zero byte, invalid for numbers.
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RlpListLenWithZeroPrefix,
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/// Non-canonical (longer than necessary) representation used for data or list.
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RlpInvalidIndirection,
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/// Declared length is inconsistent with data specified after.
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RlpInconsistentLengthAndData,
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/// Custom rlp decoding error.
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Custom(&'static str),
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}
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impl StdError for DecoderError {
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fn description(&self) -> &str {
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"builder error"
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}
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}
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impl fmt::Display for DecoderError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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fmt::Debug::fmt(&self, f)
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}
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}
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impl From<FromBytesError> for DecoderError {
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fn from(err: FromBytesError) -> DecoderError {
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DecoderError::FromBytesError(err)
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}
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}
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