extern crate serde;
extern crate serde_json;
#[allow(dead_code)]
mod optional_string {
use serde::de;
use serde::de::{Deserialize, Deserializer};
use serde::ser::Serializer;
use std::fmt::Display;
use std::str::FromStr;
pub fn serialize<T, S>(value: Option<&T>, serializer: S) -> Result<S::Ok, S::Error>
where
T: Display,
S: Serializer,
{
serializer.collect_str(value.unwrap())
}
pub fn deserialize<'de, T, D>(deserializer: D) -> Result<Option<T>, D::Error>
where
T: FromStr,
T::Err: Display,
D: Deserializer<'de>,
{
Ok(Some(
String::deserialize(deserializer)?
.parse()
.map_err(de::Error::custom)?,
))
}
}