Struct HumanOr 

pub struct HumanOr<F, G>(/* private fields */);

Adapter for custom serialization when the serialization format is human-readable

If the serialization format is human-readable, F is used to serialize. Otherwise G is used.

Example

use bincode::Options as _;
use std::{fmt::{self, Display}, str::FromStr};
use serdapt as sa;
use serde::{Deserialize, Serialize};
use serde_json::json;

struct Color(u32);

impl Display for Color {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "#{:06x}", self.0)
    }
}

impl FromStr for Color {
    type Err = std::num::ParseIntError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        u32::from_str_radix(s.trim_start_matches('#'), 16).map(Color)
    }
}

impl From<u32> for Color {
    fn from(n: u32) -> Color {
        Color(n)
    }
}

impl From<Color> for u32 {
    fn from(c: Color) -> u32 {
        c.0
    }
}

#[derive(Debug, Deserialize, PartialEq, Serialize)]
struct Palette {
    #[serde(with = "sa::Seq::<sa::HumanOr<sa::Convert<Color, sa::Str>, sa::Id>>")]
    colors: Vec<u32>,
}

let palette = Palette { colors: vec![0x000000, 0xffffff] };
let serialized = serde_json::to_value(&palette).unwrap();
assert_eq!(serialized, json!({ "colors": ["#000000", "#ffffff"] }));
let deserialized = serde_json::from_value::<Palette>(serialized).unwrap();
assert_eq!(deserialized, palette);
let bincode_config = bincode::options().with_fixint_encoding();
let serialized = bincode_config.serialize(&palette).unwrap();
assert_eq!(
    serialized,
    2u64
        .to_le_bytes()
        .into_iter()
        .chain(0u32.to_le_bytes())
        .chain(0xffffffu32.to_le_bytes())
        .collect::<Vec<_>>(),
);
let deserialized = bincode_config.deserialize::<Palette>(&serialized).unwrap();
assert_eq!(deserialized, palette);

Implementations

impl<F, G> HumanOr<F, G>

pub fn serialize<T, S>(value: &T, serializer: S) -> Result<S::Ok, S::Error>

where T: ?Sized, S: Serializer, Self: SerializeWith<T>,

Serializes value with adapter

pub fn deserialize<'de, T, D>(deserializer: D) -> Result<T, D::Error>

where D: Deserializer<'de>, Self: DeserializeWith<'de, T>,

Deserializes value with adapter

Trait Implementations

impl<'de, F, G, T> DeserializeWith<'de, T> for HumanOr<F, G>

where F: DeserializeWith<'de, T>, G: DeserializeWith<'de, T>,

fn deserialize_with<D>(deserializer: D) -> Result<T, D::Error>

where D: Deserializer<'de>,

Deserializes a value using deserializer

impl<F, G, T> SerializeWith<T> for HumanOr<F, G>

where F: SerializeWith<T>, G: SerializeWith<T>, T: ?Sized,

fn serialize_with<S: Serializer>( value: &T, serializer: S, ) -> Result<S::Ok, S::Error>

Serializes value using serializer