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// Undo rename from Cargo.toml
extern crate serde_crate as serde;
use serde::{
de::{Deserialize, Deserializer},
ser::{Error as _, Serialize, Serializer},
};
use crate::JsOption;
impl<'de, T> Deserialize<'de> for JsOption<T>
where
T: Deserialize<'de>,
{
/// Deserialize a `JsOption`.
///
/// This implementation will never return `Undefined`. You need to use
/// `#[serde(default)]` to get `Undefined` when the field is not present.
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
Option::<T>::deserialize(deserializer).map(Self::from_option)
}
}
impl<T> Serialize for JsOption<T>
where
T: Serialize,
{
/// Serialize a `JsOption`.
///
/// Serialization will fail for `JsOption::Undefined`. You need to use
/// `#[skip_serializing_if = "JsOption::is_undefined"]` to stop the field
/// from being serialized altogether.
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self {
Self::Some(val) => serializer.serialize_some(val),
Self::Null => serializer.serialize_none(),
Self::Undefined => Err(S::Error::custom("attempted to serialize `undefined`")),
}
}
}