ruwuma/crates/ruma-serde/src/single_element_seq.rs
2021-05-03 15:50:27 +02:00

25 lines
626 B
Rust

//! De-/serialization functions to and from single element sequences.
use serde::{
de::{Deserialize, Deserializer},
ser::{Serialize, Serializer},
};
/// Serialize the given value as a list of just that value.
pub fn serialize<T, S>(value: &T, serializer: S) -> Result<S::Ok, S::Error>
where
T: Serialize,
S: Serializer,
{
[value].serialize(serializer)
}
/// Deserialize a list of one item and return that item.
pub fn deserialize<'de, T, D>(deserializer: D) -> Result<T, D::Error>
where
T: Deserialize<'de>,
D: Deserializer<'de>,
{
<[_; 1]>::deserialize(deserializer).map(|[first]| first)
}