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extern crate rkyv_0_8 as rkyv;
use rkyv::{rancor::Error, Archive, Deserialize, Serialize};
use rust_decimal::prelude::{dec, Decimal};
/// The type containing a [`Decimal`] that will be de/serialized.
#[derive(Archive, Serialize, Deserialize, Debug, PartialEq, Eq)]
struct Root {
#[rkyv(with = RkyvDecimal)]
decimal: Decimal,
}
/// Archived layout of [`Decimal`]
#[derive(Archive, Serialize, Deserialize)]
#[rkyv(remote = Decimal)]
struct RkyvDecimal {
#[rkyv(getter = Decimal::serialize)]
bytes: [u8; 16],
}
impl From<RkyvDecimal> for Decimal {
fn from(RkyvDecimal { bytes }: RkyvDecimal) -> Self {
Self::deserialize(bytes)
}
}
fn main() {
let test_value = Root { decimal: dec!(123.456) };
let bytes = rkyv::to_bytes::<Error>(&test_value).expect("Failed to serialize");
let roundtrip_value = rkyv::from_bytes::<Root, Error>(&bytes).expect("Failed to deserialize");
assert_eq!(test_value, roundtrip_value);
}
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