83 lines
2.1 KiB
Rust
83 lines
2.1 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum 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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// OpenEthereum 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 OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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use rustc_hex::{FromHex, FromHexError, ToHex};
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use serde::{de::Error, Deserialize, Deserializer, Serialize, Serializer};
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use std::{ops, str};
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#[derive(Debug, PartialEq)]
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pub struct Bytes(Vec<u8>);
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impl ops::Deref for Bytes {
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type Target = [u8];
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl<'a> Deserialize<'a> for Bytes {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
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where
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D: Deserializer<'a>,
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{
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let s = String::deserialize(deserializer)?;
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let data = s
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.from_hex()
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.map_err(|e| Error::custom(format!("Invalid hex value {}", e)))?;
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Ok(Bytes(data))
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}
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}
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impl Serialize for Bytes {
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
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where
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S: Serializer,
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{
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serializer.serialize_str(&self.0.to_hex())
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}
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}
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impl str::FromStr for Bytes {
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type Err = FromHexError;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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s.from_hex().map(Bytes)
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}
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}
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impl From<&'static str> for Bytes {
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fn from(s: &'static str) -> Self {
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s.parse().expect(&format!(
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"invalid string literal for {}: '{}'",
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stringify!(Self),
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s
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))
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}
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}
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impl From<Vec<u8>> for Bytes {
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fn from(v: Vec<u8>) -> Self {
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Bytes(v)
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}
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}
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impl From<Bytes> for Vec<u8> {
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fn from(b: Bytes) -> Self {
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b.0
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}
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}
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