diff options
Diffstat (limited to 'third_party/rust/hashbrown/src/external_trait_impls/rkyv')
3 files changed, 250 insertions, 0 deletions
diff --git a/third_party/rust/hashbrown/src/external_trait_impls/rkyv/hash_map.rs b/third_party/rust/hashbrown/src/external_trait_impls/rkyv/hash_map.rs new file mode 100644 index 0000000000..fae7f76763 --- /dev/null +++ b/third_party/rust/hashbrown/src/external_trait_impls/rkyv/hash_map.rs @@ -0,0 +1,125 @@ +use crate::HashMap; +use core::{ + borrow::Borrow, + hash::{BuildHasher, Hash}, +}; +use rkyv::{ + collections::hash_map::{ArchivedHashMap, HashMapResolver}, + ser::{ScratchSpace, Serializer}, + Archive, Deserialize, Fallible, Serialize, +}; + +impl<K: Archive + Hash + Eq, V: Archive, S> Archive for HashMap<K, V, S> +where + K::Archived: Hash + Eq, +{ + type Archived = ArchivedHashMap<K::Archived, V::Archived>; + type Resolver = HashMapResolver; + + #[inline] + unsafe fn resolve(&self, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived) { + ArchivedHashMap::resolve_from_len(self.len(), pos, resolver, out); + } +} + +impl<K, V, S, RandomState> Serialize<S> for HashMap<K, V, RandomState> +where + K: Serialize<S> + Hash + Eq, + K::Archived: Hash + Eq, + V: Serialize<S>, + S: Serializer + ScratchSpace + ?Sized, +{ + #[inline] + fn serialize(&self, serializer: &mut S) -> Result<Self::Resolver, S::Error> { + unsafe { ArchivedHashMap::serialize_from_iter(self.iter(), serializer) } + } +} + +impl<K: Archive + Hash + Eq, V: Archive, D: Fallible + ?Sized, S: Default + BuildHasher> + Deserialize<HashMap<K, V, S>, D> for ArchivedHashMap<K::Archived, V::Archived> +where + K::Archived: Deserialize<K, D> + Hash + Eq, + V::Archived: Deserialize<V, D>, +{ + #[inline] + fn deserialize(&self, deserializer: &mut D) -> Result<HashMap<K, V, S>, D::Error> { + let mut result = HashMap::with_capacity_and_hasher(self.len(), S::default()); + for (k, v) in self.iter() { + result.insert(k.deserialize(deserializer)?, v.deserialize(deserializer)?); + } + Ok(result) + } +} + +impl<K: Hash + Eq + Borrow<AK>, V, AK: Hash + Eq, AV: PartialEq<V>, S: BuildHasher> + PartialEq<HashMap<K, V, S>> for ArchivedHashMap<AK, AV> +{ + #[inline] + fn eq(&self, other: &HashMap<K, V, S>) -> bool { + if self.len() != other.len() { + false + } else { + self.iter() + .all(|(key, value)| other.get(key).map_or(false, |v| value.eq(v))) + } + } +} + +impl<K: Hash + Eq + Borrow<AK>, V, AK: Hash + Eq, AV: PartialEq<V>> + PartialEq<ArchivedHashMap<AK, AV>> for HashMap<K, V> +{ + #[inline] + fn eq(&self, other: &ArchivedHashMap<AK, AV>) -> bool { + other.eq(self) + } +} + +#[cfg(test)] +mod tests { + use crate::HashMap; + use alloc::string::String; + use rkyv::{ + archived_root, check_archived_root, + ser::{serializers::AllocSerializer, Serializer}, + Deserialize, Infallible, + }; + + #[test] + fn index_map() { + let mut value = HashMap::new(); + value.insert(String::from("foo"), 10); + value.insert(String::from("bar"), 20); + value.insert(String::from("baz"), 40); + value.insert(String::from("bat"), 80); + + let mut serializer = AllocSerializer::<4096>::default(); + serializer.serialize_value(&value).unwrap(); + let result = serializer.into_serializer().into_inner(); + let archived = unsafe { archived_root::<HashMap<String, i32>>(result.as_ref()) }; + + assert_eq!(value.len(), archived.len()); + for (k, v) in value.iter() { + let (ak, av) = archived.get_key_value(k.as_str()).unwrap(); + assert_eq!(k, ak); + assert_eq!(v, av); + } + + let deserialized: HashMap<String, i32> = archived.deserialize(&mut Infallible).unwrap(); + assert_eq!(value, deserialized); + } + + #[test] + fn validate_index_map() { + let mut value = HashMap::new(); + value.insert(String::from("foo"), 10); + value.insert(String::from("bar"), 20); + value.insert(String::from("baz"), 40); + value.insert(String::from("bat"), 80); + + let mut serializer = AllocSerializer::<4096>::default(); + serializer.serialize_value(&value).unwrap(); + let result = serializer.into_serializer().into_inner(); + check_archived_root::<HashMap<String, i32>>(result.as_ref()) + .expect("failed to validate archived index map"); + } +} diff --git a/third_party/rust/hashbrown/src/external_trait_impls/rkyv/hash_set.rs b/third_party/rust/hashbrown/src/external_trait_impls/rkyv/hash_set.rs new file mode 100644 index 0000000000..c8a69cf4fc --- /dev/null +++ b/third_party/rust/hashbrown/src/external_trait_impls/rkyv/hash_set.rs @@ -0,0 +1,123 @@ +use crate::HashSet; +use core::{ + borrow::Borrow, + hash::{BuildHasher, Hash}, +}; +use rkyv::{ + collections::hash_set::{ArchivedHashSet, HashSetResolver}, + ser::{ScratchSpace, Serializer}, + Archive, Deserialize, Fallible, Serialize, +}; + +impl<K: Archive + Hash + Eq, S> Archive for HashSet<K, S> +where + K::Archived: Hash + Eq, +{ + type Archived = ArchivedHashSet<K::Archived>; + type Resolver = HashSetResolver; + + #[inline] + unsafe fn resolve(&self, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived) { + ArchivedHashSet::<K::Archived>::resolve_from_len(self.len(), pos, resolver, out); + } +} + +impl<K, S, RS> Serialize<S> for HashSet<K, RS> +where + K::Archived: Hash + Eq, + K: Serialize<S> + Hash + Eq, + S: ScratchSpace + Serializer + ?Sized, +{ + #[inline] + fn serialize(&self, serializer: &mut S) -> Result<Self::Resolver, S::Error> { + unsafe { ArchivedHashSet::serialize_from_iter(self.iter(), serializer) } + } +} + +impl<K, D, S> Deserialize<HashSet<K, S>, D> for ArchivedHashSet<K::Archived> +where + K: Archive + Hash + Eq, + K::Archived: Deserialize<K, D> + Hash + Eq, + D: Fallible + ?Sized, + S: Default + BuildHasher, +{ + #[inline] + fn deserialize(&self, deserializer: &mut D) -> Result<HashSet<K, S>, D::Error> { + let mut result = HashSet::with_hasher(S::default()); + for k in self.iter() { + result.insert(k.deserialize(deserializer)?); + } + Ok(result) + } +} + +impl<K: Hash + Eq + Borrow<AK>, AK: Hash + Eq, S: BuildHasher> PartialEq<HashSet<K, S>> + for ArchivedHashSet<AK> +{ + #[inline] + fn eq(&self, other: &HashSet<K, S>) -> bool { + if self.len() != other.len() { + false + } else { + self.iter().all(|key| other.get(key).is_some()) + } + } +} + +impl<K: Hash + Eq + Borrow<AK>, AK: Hash + Eq, S: BuildHasher> PartialEq<ArchivedHashSet<AK>> + for HashSet<K, S> +{ + #[inline] + fn eq(&self, other: &ArchivedHashSet<AK>) -> bool { + other.eq(self) + } +} + +#[cfg(test)] +mod tests { + use crate::HashSet; + use alloc::string::String; + use rkyv::{ + archived_root, check_archived_root, + ser::{serializers::AllocSerializer, Serializer}, + Deserialize, Infallible, + }; + + #[test] + fn index_set() { + let mut value = HashSet::new(); + value.insert(String::from("foo")); + value.insert(String::from("bar")); + value.insert(String::from("baz")); + value.insert(String::from("bat")); + + let mut serializer = AllocSerializer::<4096>::default(); + serializer.serialize_value(&value).unwrap(); + let result = serializer.into_serializer().into_inner(); + let archived = unsafe { archived_root::<HashSet<String>>(result.as_ref()) }; + + assert_eq!(value.len(), archived.len()); + for k in value.iter() { + let ak = archived.get(k.as_str()).unwrap(); + assert_eq!(k, ak); + } + + let deserialized: HashSet<String> = archived.deserialize(&mut Infallible).unwrap(); + assert_eq!(value, deserialized); + } + + #[test] + fn validate_index_set() { + let mut value = HashSet::new(); + value.insert(String::from("foo")); + value.insert(String::from("bar")); + value.insert(String::from("baz")); + value.insert(String::from("bat")); + + let mut serializer = AllocSerializer::<4096>::default(); + serializer.serialize_value(&value).unwrap(); + let result = serializer.into_serializer().into_inner(); + check_archived_root::<HashSet<String>>(result.as_ref()) + .expect("failed to validate archived index set"); + } +} diff --git a/third_party/rust/hashbrown/src/external_trait_impls/rkyv/mod.rs b/third_party/rust/hashbrown/src/external_trait_impls/rkyv/mod.rs new file mode 100644 index 0000000000..2bde6a0653 --- /dev/null +++ b/third_party/rust/hashbrown/src/external_trait_impls/rkyv/mod.rs @@ -0,0 +1,2 @@ +mod hash_map; +mod hash_set; |