diff options
Diffstat (limited to 'vendor/hashbrown-0.12.3/src/external_trait_impls/serde.rs')
| -rw-r--r-- | vendor/hashbrown-0.12.3/src/external_trait_impls/serde.rs | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/vendor/hashbrown-0.12.3/src/external_trait_impls/serde.rs b/vendor/hashbrown-0.12.3/src/external_trait_impls/serde.rs deleted file mode 100644 index 4d62deeb7..000000000 --- a/vendor/hashbrown-0.12.3/src/external_trait_impls/serde.rs +++ /dev/null @@ -1,201 +0,0 @@ -mod size_hint { - use core::cmp; - - /// This presumably exists to prevent denial of service attacks. - /// - /// Original discussion: https://github.com/serde-rs/serde/issues/1114. - #[cfg_attr(feature = "inline-more", inline)] - pub(super) fn cautious(hint: Option<usize>) -> usize { - cmp::min(hint.unwrap_or(0), 4096) - } -} - -mod map { - use core::fmt; - use core::hash::{BuildHasher, Hash}; - use core::marker::PhantomData; - use serde::de::{Deserialize, Deserializer, MapAccess, Visitor}; - use serde::ser::{Serialize, Serializer}; - - use crate::hash_map::HashMap; - - use super::size_hint; - - impl<K, V, H> Serialize for HashMap<K, V, H> - where - K: Serialize + Eq + Hash, - V: Serialize, - H: BuildHasher, - { - #[cfg_attr(feature = "inline-more", inline)] - fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> - where - S: Serializer, - { - serializer.collect_map(self) - } - } - - impl<'de, K, V, S> Deserialize<'de> for HashMap<K, V, S> - where - K: Deserialize<'de> + Eq + Hash, - V: Deserialize<'de>, - S: BuildHasher + Default, - { - fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> - where - D: Deserializer<'de>, - { - struct MapVisitor<K, V, S> { - marker: PhantomData<HashMap<K, V, S>>, - } - - impl<'de, K, V, S> Visitor<'de> for MapVisitor<K, V, S> - where - K: Deserialize<'de> + Eq + Hash, - V: Deserialize<'de>, - S: BuildHasher + Default, - { - type Value = HashMap<K, V, S>; - - fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - formatter.write_str("a map") - } - - #[cfg_attr(feature = "inline-more", inline)] - fn visit_map<A>(self, mut map: A) -> Result<Self::Value, A::Error> - where - A: MapAccess<'de>, - { - let mut values = HashMap::with_capacity_and_hasher( - size_hint::cautious(map.size_hint()), - S::default(), - ); - - while let Some((key, value)) = map.next_entry()? { - values.insert(key, value); - } - - Ok(values) - } - } - - let visitor = MapVisitor { - marker: PhantomData, - }; - deserializer.deserialize_map(visitor) - } - } -} - -mod set { - use core::fmt; - use core::hash::{BuildHasher, Hash}; - use core::marker::PhantomData; - use serde::de::{Deserialize, Deserializer, SeqAccess, Visitor}; - use serde::ser::{Serialize, Serializer}; - - use crate::hash_set::HashSet; - - use super::size_hint; - - impl<T, H> Serialize for HashSet<T, H> - where - T: Serialize + Eq + Hash, - H: BuildHasher, - { - #[cfg_attr(feature = "inline-more", inline)] - fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> - where - S: Serializer, - { - serializer.collect_seq(self) - } - } - - impl<'de, T, S> Deserialize<'de> for HashSet<T, S> - where - T: Deserialize<'de> + Eq + Hash, - S: BuildHasher + Default, - { - fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> - where - D: Deserializer<'de>, - { - struct SeqVisitor<T, S> { - marker: PhantomData<HashSet<T, S>>, - } - - impl<'de, T, S> Visitor<'de> for SeqVisitor<T, S> - where - T: Deserialize<'de> + Eq + Hash, - S: BuildHasher + Default, - { - type Value = HashSet<T, S>; - - fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - formatter.write_str("a sequence") - } - - #[cfg_attr(feature = "inline-more", inline)] - fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error> - where - A: SeqAccess<'de>, - { - let mut values = HashSet::with_capacity_and_hasher( - size_hint::cautious(seq.size_hint()), - S::default(), - ); - - while let Some(value) = seq.next_element()? { - values.insert(value); - } - - Ok(values) - } - } - - let visitor = SeqVisitor { - marker: PhantomData, - }; - deserializer.deserialize_seq(visitor) - } - - #[allow(clippy::missing_errors_doc)] - fn deserialize_in_place<D>(deserializer: D, place: &mut Self) -> Result<(), D::Error> - where - D: Deserializer<'de>, - { - struct SeqInPlaceVisitor<'a, T, S>(&'a mut HashSet<T, S>); - - impl<'a, 'de, T, S> Visitor<'de> for SeqInPlaceVisitor<'a, T, S> - where - T: Deserialize<'de> + Eq + Hash, - S: BuildHasher + Default, - { - type Value = (); - - fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - formatter.write_str("a sequence") - } - - #[cfg_attr(feature = "inline-more", inline)] - fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error> - where - A: SeqAccess<'de>, - { - self.0.clear(); - self.0.reserve(size_hint::cautious(seq.size_hint())); - - while let Some(value) = seq.next_element()? { - self.0.insert(value); - } - - Ok(()) - } - } - - deserializer.deserialize_seq(SeqInPlaceVisitor(place)) - } - } -} |