/
box_id.rs
67 lines (56 loc) · 1.49 KB
/
box_id.rs
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//! Box id type
use std::io;
#[cfg(feature = "with-serde")]
use serde::{Deserialize, Serialize};
use super::digest32::Digest32;
use crate::serialization::{
sigma_byte_reader::SigmaByteRead, sigma_byte_writer::SigmaByteWrite, SerializationError,
SigmaSerializable,
};
#[cfg(test)]
use proptest_derive::Arbitrary;
/// newtype for box ids
#[derive(PartialEq, Eq, Hash, Debug, Clone)]
#[cfg_attr(feature = "with-serde", derive(Serialize, Deserialize))]
#[cfg_attr(test, derive(Arbitrary))]
pub struct BoxId(pub Digest32);
impl BoxId {
/// Size in bytes
pub const SIZE: usize = Digest32::SIZE;
/// All zeros
pub fn zero() -> BoxId {
BoxId(Digest32::zero())
}
}
impl From<Digest32> for BoxId {
fn from(v: Digest32) -> Self {
BoxId(v)
}
}
#[cfg(feature = "with-serde")]
impl Into<String> for BoxId {
fn into(self) -> String {
self.0.into()
}
}
impl SigmaSerializable for BoxId {
fn sigma_serialize<W: SigmaByteWrite>(&self, w: &mut W) -> Result<(), io::Error> {
self.0.sigma_serialize(w)?;
Ok(())
}
fn sigma_parse<R: SigmaByteRead>(r: &mut R) -> Result<Self, SerializationError> {
Ok(Self(Digest32::sigma_parse(r)?))
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::serialization::sigma_serialize_roundtrip;
use proptest::prelude::*;
proptest! {
#[test]
fn ser_roundtrip(v in any::<BoxId>()) {
prop_assert_eq![sigma_serialize_roundtrip(&v), v];
}
}
}