serde/de/
seed.rs

1use crate::de::{Deserialize, DeserializeSeed, Deserializer};
2
3/// A DeserializeSeed helper for implementing deserialize_in_place Visitors.
4///
5/// Wraps a mutable reference and calls deserialize_in_place on it.
6pub struct InPlaceSeed<'a, T: 'a>(pub &'a mut T);
7
8impl<'a, 'de, T> DeserializeSeed<'de> for InPlaceSeed<'a, T>
9where
10    T: Deserialize<'de>,
11{
12    type Value = ();
13    fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
14    where
15        D: Deserializer<'de>,
16    {
17        T::deserialize_in_place(deserializer, self.0)
18    }
19}