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72 lines
1.8 KiB
Rust

use crate::hydrus_serializable::dictionary::HydrusDictionary;
use serde::de::{DeserializeOwned, EnumAccess, Error, MapAccess, SeqAccess, Visitor};
use serde::{Deserialize, Deserializer, Serialize};
use serde_json::Value;
use std::cmp::Ordering;
use std::fmt::Formatter;
use std::hash::{Hash, Hasher};
use std::marker::PhantomData;
use std::ops::{Deref, DerefMut};
pub mod dictionary;
pub mod wrapper;
pub trait HydrusSerializable: DeserializeOwned {
fn type_id() -> u64;
}
#[derive(Clone, Debug)]
pub struct SerializableId<T: HydrusSerializable>(u64, PhantomData<T>);
impl<'de, T: HydrusSerializable> Deserialize<'de> for SerializableId<T> {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
deserializer.deserialize_u64(SerIdVisitor(PhantomData))
}
}
struct SerIdVisitor<T>(PhantomData<T>);
impl<'de, T: HydrusSerializable> Visitor<'de> for SerIdVisitor<T> {
type Value = SerializableId<T>;
fn expecting(&self, formatter: &mut Formatter) -> std::fmt::Result {
write!(formatter, "an unsigned integer equal to {}", T::type_id())
}
fn visit_u8<E>(self, v: u8) -> Result<Self::Value, E>
where
E: Error,
{
self.visit_u64(v as u64)
}
fn visit_u16<E>(self, v: u16) -> Result<Self::Value, E>
where
E: Error,
{
self.visit_u64(v as u64)
}
fn visit_u32<E>(self, v: u32) -> Result<Self::Value, E>
where
E: Error,
{
self.visit_u64(v as u64)
}
fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
where
E: Error,
{
let expected_value = T::type_id();
if v != expected_value {
Err(E::custom(format!("type not equal to {}", expected_value)))
} else {
Ok(SerializableId(expected_value, PhantomData))
}
}
}