59 lines
1.2 KiB
Rust
59 lines
1.2 KiB
Rust
use std::{ops, str};
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use serde::{Deserialize, Deserializer, Error, Serialize, Serializer};
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use rustc_serialize::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 Deserialize for Bytes {
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fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
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where D: Deserializer
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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: &mut S) -> Result<(), 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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