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use serde::{
de::{Deserializer, Error},
ser::{Error as SerError, Serializer},
};
use serde_with::{Bytes, DeserializeAs, SerializeAs};
use std::fmt::Debug;
#[inline]
fn to_custom_error<'de, D, E>(e: E) -> D::Error
where
E: Debug,
D: Deserializer<'de>,
{
D::Error::custom(format!("byte deserialization failed, cause by: {:?}", e))
}
#[inline]
fn to_custom_ser_error<S, E>(e: E) -> S::Error
where
E: Debug,
S: Serializer,
{
S::Error::custom(format!("byte serialization failed, cause by: {:?}", e))
}
pub struct NarwhalBitmap;
impl SerializeAs<roaring::RoaringBitmap> for NarwhalBitmap {
fn serialize_as<S>(source: &roaring::RoaringBitmap, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut bytes = vec![];
source
.serialize_into(&mut bytes)
.map_err(to_custom_ser_error::<S, _>)?;
Bytes::serialize_as(&bytes, serializer)
}
}
impl<'de> DeserializeAs<'de, roaring::RoaringBitmap> for NarwhalBitmap {
fn deserialize_as<D>(deserializer: D) -> Result<roaring::RoaringBitmap, D::Error>
where
D: Deserializer<'de>,
{
let bytes: Vec<u8> = Bytes::deserialize_as(deserializer)?;
roaring::RoaringBitmap::deserialize_from(&bytes[..]).map_err(to_custom_error::<'de, D, _>)
}
}