use serde::de::Error;
use serde::{Deserialize, Deserializer, Serializer};
use std::str::FromStr;
pub fn serialize<S, T>(value: &Option<T>, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
T: ToString,
{
match value {
Some(t) => serializer.serialize_some(&t.to_string()),
None => serializer.serialize_none(),
}
}
pub fn deserialize<'de, D, T>(deserializer: D) -> Result<Option<T>, D::Error>
where
D: Deserializer<'de>,
T: FromStr,
T::Err: std::error::Error,
{
let s = match Option::<String>::deserialize(deserializer)? {
Some(s) => s,
None => return Ok(None),
};
Ok(Some(s.parse().map_err(|e: <T as FromStr>::Err| {
D::Error::custom(e.to_string())
})?))
}