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extern crate serde;
use self::serde::ser::{Serialize, Serializer, SerializeMap, SerializeSeq};
use self::serde::de::{Deserialize, Deserializer, MapAccess, SeqAccess, Visitor};
use std::fmt::{self, Formatter};
use std::hash::{BuildHasher, Hash};
use std::marker::PhantomData;
use OrderMap;
impl<K, V, S> Serialize for OrderMap<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
{
let mut map_serializer = try!(serializer.serialize_map(Some(self.len())));
for (key, value) in self {
try!(map_serializer.serialize_entry(key, value));
}
map_serializer.end()
}
}
struct OrderMapVisitor<K, V, S>(PhantomData<(K, V, S)>);
impl<'de, K, V, S> Visitor<'de> for OrderMapVisitor<K, V, S>
where K: Deserialize<'de> + Eq + Hash,
V: Deserialize<'de>,
S: Default + BuildHasher
{
type Value = OrderMap<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 = OrderMap::with_capacity_and_hasher(map.size_hint().unwrap_or(0), S::default());
while let Some((key, value)) = try!(map.next_entry()) {
values.insert(key, value);
}
Ok(values)
}
}
impl<'de, K, V, S> Deserialize<'de> for OrderMap<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(OrderMapVisitor(PhantomData))
}
}
use OrderSet;
impl<T, S> Serialize for OrderSet<T, S>
where T: Serialize + Hash + Eq,
S: BuildHasher
{
fn serialize<Se>(&self, serializer: Se) -> Result<Se::Ok, Se::Error>
where Se: Serializer
{
let mut set_serializer = try!(serializer.serialize_seq(Some(self.len())));
for value in self {
try!(set_serializer.serialize_element(value));
}
set_serializer.end()
}
}
struct OrderSetVisitor<T, S>(PhantomData<(T, S)>);
impl<'de, T, S> Visitor<'de> for OrderSetVisitor<T, S>
where T: Deserialize<'de> + Eq + Hash,
S: Default + BuildHasher
{
type Value = OrderSet<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 = OrderSet::with_capacity_and_hasher(seq.size_hint().unwrap_or(0), S::default());
while let Some(value) = try!(seq.next_element()) {
values.insert(value);
}
Ok(values)
}
}
impl<'de, T, S> Deserialize<'de> for OrderSet<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(OrderSetVisitor(PhantomData))
}
}