50 lines
1.6 KiB
Rust
50 lines
1.6 KiB
Rust
// Copyright 2015-2017 Parity Technologies
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::fmt;
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use std::error::Error as StdError;
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#[derive(Debug, PartialEq, Eq, Clone)]
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/// Error concerning the RLP decoder.
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pub enum DecoderError {
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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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/// Declared length is invalid and results in overflow
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RlpInvalidLength,
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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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