rkyv/impls/alloc/collections/
btree_map.rs

1use crate::{
2    collections::btree_map::{ArchivedBTreeMap, BTreeMapResolver},
3    ser::Serializer,
4    Archive, Deserialize, Fallible, Serialize,
5};
6#[cfg(not(feature = "std"))]
7use alloc::collections::BTreeMap;
8#[cfg(feature = "std")]
9use std::collections::BTreeMap;
10
11impl<K: Archive + Ord, V: Archive> Archive for BTreeMap<K, V>
12where
13    K::Archived: Ord,
14{
15    type Archived = ArchivedBTreeMap<K::Archived, V::Archived>;
16    type Resolver = BTreeMapResolver;
17
18    #[inline]
19    unsafe fn resolve(&self, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived) {
20        ArchivedBTreeMap::resolve_from_len(self.len(), pos, resolver, out);
21    }
22}
23
24impl<K: Serialize<S> + Ord, V: Serialize<S>, S: Serializer + ?Sized> Serialize<S> for BTreeMap<K, V>
25where
26    K::Archived: Ord,
27{
28    #[inline]
29    fn serialize(&self, serializer: &mut S) -> Result<Self::Resolver, S::Error> {
30        unsafe { ArchivedBTreeMap::serialize_from_reverse_iter(self.iter().rev(), serializer) }
31    }
32}
33
34impl<K: Archive + Ord, V: Archive, D: Fallible + ?Sized> Deserialize<BTreeMap<K, V>, D>
35    for ArchivedBTreeMap<K::Archived, V::Archived>
36where
37    K::Archived: Deserialize<K, D> + Ord,
38    V::Archived: Deserialize<V, D>,
39{
40    #[inline]
41    fn deserialize(&self, deserializer: &mut D) -> Result<BTreeMap<K, V>, D::Error> {
42        let mut result = BTreeMap::new();
43        for (key, value) in self.iter() {
44            result.insert(
45                key.deserialize(deserializer)?,
46                value.deserialize(deserializer)?,
47            );
48        }
49        Ok(result)
50    }
51}
52
53impl<K, V, AK: PartialEq<K>, AV: PartialEq<V>> PartialEq<BTreeMap<K, V>>
54    for ArchivedBTreeMap<AK, AV>
55{
56    #[inline]
57    fn eq(&self, other: &BTreeMap<K, V>) -> bool {
58        if self.len() != other.len() {
59            false
60        } else {
61            self.iter()
62                .zip(other.iter())
63                .all(|(a, b)| a.0.eq(b.0) && a.1.eq(b.1))
64        }
65    }
66}
67
68impl<K, V, AK: PartialEq<K>, AV: PartialEq<V>> PartialEq<ArchivedBTreeMap<AK, AV>>
69    for BTreeMap<K, V>
70{
71    #[inline]
72    fn eq(&self, other: &ArchivedBTreeMap<AK, AV>) -> bool {
73        other.eq(self)
74    }
75}
rkyv/impls/alloc/collections/btree_map.rs

rkyv/impls/alloc/collections/
btree_map.rs
