10 releases
0.0.10 | May 25, 2024 |
---|---|
0.0.9 | Dec 21, 2022 |
#521 in Encoding
70 downloads per month
Used in 2 crates
12KB
183 lines
serde-serialize-seed
The SerializeSeed
trait for convinience.
Example
mod complex_type {
use serde::{Deserializer, Serializer};
use serde::de::{self, DeserializeSeed};
use serde_serialize_seed::SerializeSeed;
use std::fmt::{self, Formatter};
pub struct ComplexType(pub u8);
pub struct ComplexTypeSerde {
pub xor: u8,
}
struct ComplexTypeDeVisitor(ComplexTypeSerde);
impl<'de> de::Visitor<'de> for ComplexTypeDeVisitor {
type Value = ComplexType;
fn expecting(&self, f: &mut Formatter) -> fmt::Result {
write!(f, "u8")
}
fn visit_u64<E: de::Error>(self, v: u64) -> Result<Self::Value, E> {
let v = u8::try_from(v).map_err(|_| E::invalid_value(de::Unexpected::Unsigned(v), &self))?;
Ok(ComplexType(v ^ self.0.xor))
}
}
impl<'de> DeserializeSeed<'de> for ComplexTypeSerde {
type Value = ComplexType;
fn deserialize<D: Deserializer<'de>>(self, deserializer: D) -> Result<Self::Value, D::Error> {
deserializer.deserialize_u8(ComplexTypeDeVisitor(self))
}
}
impl SerializeSeed for ComplexTypeSerde {
type Value = ComplexType;
fn serialize<S: Serializer>(&self, value: &Self::Value, serializer: S) -> Result<S::Ok, S::Error> {
serializer.serialize_u8(value.0 ^ self.xor)
}
}
}
use complex_type::*;
use serde::de::DeserializeSeed;
use serde_serialize_seed::ValueWithSeed;
fn main() {
let x = ComplexType(10);
let json = serde_json::to_value(ValueWithSeed(&x, ComplexTypeSerde { xor: 0x34 })).unwrap();
let y = ComplexTypeSerde { xor: 0x34 }.deserialize(json).unwrap();
assert_eq!(x.0, y.0);
}
Dependencies
~0.6–1.2MB
~26K SLoC