tendermint_proto/serializers/
nullable.rs

1//! Serialize/deserialize `nil`able type into `T`, where `nil` turns into the default impl.
2use serde::{Deserialize, Deserializer, Serialize, Serializer};
3
4/// Deserialize `Option<T>`
5pub fn deserialize<'de, D, T>(deserializer: D) -> Result<T, D::Error>
6where
7    D: Deserializer<'de>,
8    T: Deserialize<'de> + Default,
9{
10    Ok(Option::<T>::deserialize(deserializer)?.unwrap_or_default())
11}
12
13/// Serialize `Option<T>`
14pub fn serialize<S, T>(value: &T, serializer: S) -> Result<S::Ok, S::Error>
15where
16    S: Serializer,
17    T: Default + PartialEq + Serialize,
18{
19    if value == &T::default() {
20        serializer.serialize_none()
21    } else {
22        serializer.serialize_some(value)
23    }
24}