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use crate::{
boxed::{ArchivedBox, BoxResolver},
Archive, ArchivePointee, ArchiveUnsized, Deserialize, DeserializeUnsized, Fallible, Serialize,
SerializeUnsized,
};
#[cfg(not(feature = "std"))]
use ::alloc::{alloc, boxed::Box};
use ::core::cmp;
#[cfg(feature = "std")]
use ::std::alloc;
impl<T: ArchiveUnsized + ?Sized> Archive for Box<T> {
type Archived = ArchivedBox<T::Archived>;
type Resolver = BoxResolver<T::MetadataResolver>;
#[inline]
unsafe fn resolve(&self, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived) {
ArchivedBox::resolve_from_ref(self.as_ref(), pos, resolver, out);
}
}
impl<T: SerializeUnsized<S> + ?Sized, S: Fallible + ?Sized> Serialize<S> for Box<T> {
#[inline]
fn serialize(&self, serializer: &mut S) -> Result<Self::Resolver, S::Error> {
ArchivedBox::serialize_from_ref(self.as_ref(), serializer)
}
}
impl<T, D> Deserialize<Box<T>, D> for ArchivedBox<T::Archived>
where
T: ArchiveUnsized + ?Sized,
T::Archived: DeserializeUnsized<T, D>,
D: Fallible + ?Sized,
{
#[inline]
fn deserialize(&self, deserializer: &mut D) -> Result<Box<T>, D::Error> {
unsafe {
let data_address = self
.get()
.deserialize_unsized(deserializer, |layout| alloc::alloc(layout))?;
let metadata = self.get().deserialize_metadata(deserializer)?;
let ptr = ptr_meta::from_raw_parts_mut(data_address, metadata);
Ok(Box::from_raw(ptr))
}
}
}
impl<T: ArchivePointee + PartialEq<U> + ?Sized, U: ?Sized> PartialEq<Box<U>> for ArchivedBox<T> {
#[inline]
fn eq(&self, other: &Box<U>) -> bool {
self.get().eq(other.as_ref())
}
}
impl<T: ArchivePointee + PartialOrd<U> + ?Sized, U: ?Sized> PartialOrd<Box<U>> for ArchivedBox<T> {
#[inline]
fn partial_cmp(&self, other: &Box<U>) -> Option<cmp::Ordering> {
self.get().partial_cmp(other.as_ref())
}
}