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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /third_party/rust/indexmap/src/serde.rs
parentInitial commit. (diff)
downloadfirefox-upstream.tar.xz
firefox-upstream.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/indexmap/src/serde.rs')
-rw-r--r--third_party/rust/indexmap/src/serde.rs155
1 files changed, 155 insertions, 0 deletions
diff --git a/third_party/rust/indexmap/src/serde.rs b/third_party/rust/indexmap/src/serde.rs
new file mode 100644
index 0000000000..c6dd6d5ea0
--- /dev/null
+++ b/third_party/rust/indexmap/src/serde.rs
@@ -0,0 +1,155 @@
+use serde::de::value::{MapDeserializer, SeqDeserializer};
+use serde::de::{
+ Deserialize, Deserializer, Error, IntoDeserializer, MapAccess, SeqAccess, Visitor,
+};
+use serde::ser::{Serialize, Serializer};
+
+use core::fmt::{self, Formatter};
+use core::hash::{BuildHasher, Hash};
+use core::marker::PhantomData;
+
+use crate::IndexMap;
+
+/// Requires crate feature `"serde"` or `"serde-1"`
+impl<K, V, S> Serialize for IndexMap<K, V, S>
+where
+ K: Serialize + Hash + Eq,
+ V: Serialize,
+ S: BuildHasher,
+{
+ fn serialize<T>(&self, serializer: T) -> Result<T::Ok, T::Error>
+ where
+ T: Serializer,
+ {
+ serializer.collect_map(self)
+ }
+}
+
+struct IndexMapVisitor<K, V, S>(PhantomData<(K, V, S)>);
+
+impl<'de, K, V, S> Visitor<'de> for IndexMapVisitor<K, V, S>
+where
+ K: Deserialize<'de> + Eq + Hash,
+ V: Deserialize<'de>,
+ S: Default + BuildHasher,
+{
+ type Value = IndexMap<K, V, S>;
+
+ fn expecting(&self, formatter: &mut Formatter<'_>) -> fmt::Result {
+ write!(formatter, "a map")
+ }
+
+ fn visit_map<A>(self, mut map: A) -> Result<Self::Value, A::Error>
+ where
+ A: MapAccess<'de>,
+ {
+ let mut values =
+ IndexMap::with_capacity_and_hasher(map.size_hint().unwrap_or(0), S::default());
+
+ while let Some((key, value)) = map.next_entry()? {
+ values.insert(key, value);
+ }
+
+ Ok(values)
+ }
+}
+
+/// Requires crate feature `"serde"` or `"serde-1"`
+impl<'de, K, V, S> Deserialize<'de> for IndexMap<K, V, S>
+where
+ K: Deserialize<'de> + Eq + Hash,
+ V: Deserialize<'de>,
+ S: Default + BuildHasher,
+{
+ fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+ where
+ D: Deserializer<'de>,
+ {
+ deserializer.deserialize_map(IndexMapVisitor(PhantomData))
+ }
+}
+
+impl<'de, K, V, S, E> IntoDeserializer<'de, E> for IndexMap<K, V, S>
+where
+ K: IntoDeserializer<'de, E> + Eq + Hash,
+ V: IntoDeserializer<'de, E>,
+ S: BuildHasher,
+ E: Error,
+{
+ type Deserializer = MapDeserializer<'de, <Self as IntoIterator>::IntoIter, E>;
+
+ fn into_deserializer(self) -> Self::Deserializer {
+ MapDeserializer::new(self.into_iter())
+ }
+}
+
+use crate::IndexSet;
+
+/// Requires crate feature `"serde"` or `"serde-1"`
+impl<T, S> Serialize for IndexSet<T, S>
+where
+ T: Serialize + Hash + Eq,
+ S: BuildHasher,
+{
+ fn serialize<Se>(&self, serializer: Se) -> Result<Se::Ok, Se::Error>
+ where
+ Se: Serializer,
+ {
+ serializer.collect_seq(self)
+ }
+}
+
+struct IndexSetVisitor<T, S>(PhantomData<(T, S)>);
+
+impl<'de, T, S> Visitor<'de> for IndexSetVisitor<T, S>
+where
+ T: Deserialize<'de> + Eq + Hash,
+ S: Default + BuildHasher,
+{
+ type Value = IndexSet<T, S>;
+
+ fn expecting(&self, formatter: &mut Formatter<'_>) -> fmt::Result {
+ write!(formatter, "a set")
+ }
+
+ fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
+ where
+ A: SeqAccess<'de>,
+ {
+ let mut values =
+ IndexSet::with_capacity_and_hasher(seq.size_hint().unwrap_or(0), S::default());
+
+ while let Some(value) = seq.next_element()? {
+ values.insert(value);
+ }
+
+ Ok(values)
+ }
+}
+
+/// Requires crate feature `"serde"` or `"serde-1"`
+impl<'de, T, S> Deserialize<'de> for IndexSet<T, S>
+where
+ T: Deserialize<'de> + Eq + Hash,
+ S: Default + BuildHasher,
+{
+ fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+ where
+ D: Deserializer<'de>,
+ {
+ deserializer.deserialize_seq(IndexSetVisitor(PhantomData))
+ }
+}
+
+impl<'de, T, S, E> IntoDeserializer<'de, E> for IndexSet<T, S>
+where
+ T: IntoDeserializer<'de, E> + Eq + Hash,
+ S: BuildHasher,
+ E: Error,
+{
+ type Deserializer = SeqDeserializer<<Self as IntoIterator>::IntoIter, E>;
+
+ fn into_deserializer(self) -> Self::Deserializer {
+ SeqDeserializer::new(self.into_iter())
+ }
+}