76 lines
1.9 KiB
Rust
76 lines
1.9 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::{ops, str};
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use serde::{Deserialize, Deserializer, Serialize, Serializer};
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use serde::de::Error;
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use rustc_hex::{ToHex, FromHex, FromHexError};
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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 D: Deserializer<'a>
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{
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let s = String::deserialize(deserializer)?;
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let data = s.from_hex().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 S: Serializer {
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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!("invalid string literal for {}: '{}'", stringify!(Self), s))
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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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