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serialize.rs
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serialize.rs
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// Copyright (C) 2019-2023 Aleo Systems Inc.
// This file is part of the snarkVM library.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use super::*;
impl<N: Network> Serialize for Authority<N> {
/// Serializes the authority into string or bytes.
#[inline]
fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
match serializer.is_human_readable() {
true => {
let mut authority = serializer.serialize_struct("Authority", 2)?;
match self {
Self::Beacon(signature) => {
authority.serialize_field("type", "beacon")?;
authority.serialize_field("signature", signature)?;
}
Self::Quorum(subdag) => {
authority.serialize_field("type", "quorum")?;
authority.serialize_field("subdag", subdag)?;
}
}
authority.end()
}
false => ToBytesSerializer::serialize_with_size_encoding(self, serializer),
}
}
}
impl<'de, N: Network> Deserialize<'de> for Authority<N> {
/// Deserializes the authority from a string or bytes.
#[inline]
fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
match deserializer.is_human_readable() {
true => {
let mut authority = serde_json::Value::deserialize(deserializer)?;
let type_: String = DeserializeExt::take_from_value::<D>(&mut authority, "type")?;
// Recover the authority.
match type_.as_str() {
"beacon" => Ok(Self::from_beacon(
DeserializeExt::take_from_value::<D>(&mut authority, "signature").map_err(de::Error::custom)?,
)),
"quorum" => Ok(Self::from_quorum(
DeserializeExt::take_from_value::<D>(&mut authority, "subdag").map_err(de::Error::custom)?,
)),
_ => Err(de::Error::custom(error("Invalid authority type"))),
}
}
false => FromBytesDeserializer::<Self>::deserialize_with_size_encoding(deserializer, "authority"),
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use console::prelude::TestRng;
fn check_serde_json<
T: Serialize + for<'a> Deserialize<'a> + Debug + Display + PartialEq + Eq + FromStr + ToBytes + FromBytes,
>(
expected: T,
) {
// Serialize
let expected_string = &expected.to_string();
let candidate_string = serde_json::to_string(&expected).unwrap();
assert_eq!(expected_string, &serde_json::Value::from_str(&candidate_string).unwrap().to_string());
// Deserialize
assert_eq!(expected, T::from_str(expected_string).unwrap_or_else(|_| panic!("FromStr: {expected_string}")));
assert_eq!(expected, serde_json::from_str(&candidate_string).unwrap());
}
fn check_bincode<T: Serialize + for<'a> Deserialize<'a> + Debug + PartialEq + Eq + ToBytes + FromBytes>(
expected: T,
) {
// Serialize
let expected_bytes = expected.to_bytes_le().unwrap();
let expected_bytes_with_size_encoding = bincode::serialize(&expected).unwrap();
assert_eq!(&expected_bytes[..], &expected_bytes_with_size_encoding[8..]);
// Deserialize
assert_eq!(expected, T::read_le(&expected_bytes[..]).unwrap());
assert_eq!(expected, bincode::deserialize(&expected_bytes_with_size_encoding[..]).unwrap());
}
#[test]
fn test_serde_json() {
let rng = &mut TestRng::default();
for expected in crate::test_helpers::sample_authorities(rng) {
check_serde_json(expected);
}
}
#[test]
fn test_bincode() {
let rng = &mut TestRng::default();
for expected in crate::test_helpers::sample_authorities(rng) {
check_bincode(expected);
}
}
}