Function deserialize

pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<LatLng>, D::Error>
where
    D: Deserializer<'de>,

Deserialize Option<LatLng> from geoPointValue or nullValue.

Examples

use serde_firestore_value::google::{
    firestore::v1::{value::ValueType, MapValue, Value},
    r#type::LatLng,
};
use serde_firestore_value::{from_value, with::option_lat_lng};

#[derive(Debug, PartialEq, serde::Deserialize)]
struct S(#[serde(deserialize_with = "option_lat_lng::deserialize")] Option<LatLng>);

// some
{
    let o = S(Some(LatLng {
        latitude: 1_f64,
        longitude: 2_f64,
    }));
    let v = Value {
        value_type: Some(ValueType::GeoPointValue(LatLng {
            latitude: 1_f64,
            longitude: 2_f64,
        })),
    };
    let d = from_value::<'_, S>(&v)?;
    assert_eq!(d, o);
}

// none
{
    let o = S(None);
    let v = Value {
        value_type: Some(ValueType::NullValue(0_i32)),
    };
    let d = from_value::<'_, S>(&v)?;
    assert_eq!(d, o);
}