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use crate::{
    boxed::{ArchivedBox, BoxResolver},
    with::{ArchiveWith, Boxed, Inline, SerializeWith},
    Archive, ArchiveUnsized, Fallible, Serialize, SerializeUnsized,
};

// Inline

impl<F: Archive> ArchiveWith<&F> for Inline {
    type Archived = F::Archived;
    type Resolver = F::Resolver;

    #[inline]
    unsafe fn resolve_with(
        field: &&F,
        pos: usize,
        resolver: Self::Resolver,
        out: *mut Self::Archived,
    ) {
        field.resolve(pos, resolver, out);
    }
}

impl<F: Serialize<S>, S: Fallible + ?Sized> SerializeWith<&F, S> for Inline {
    #[inline]
    fn serialize_with(field: &&F, serializer: &mut S) -> Result<Self::Resolver, S::Error> {
        field.serialize(serializer)
    }
}

impl<F: ArchiveUnsized + ?Sized> ArchiveWith<&F> for Boxed {
    type Archived = ArchivedBox<F::Archived>;
    type Resolver = BoxResolver<F::MetadataResolver>;

    #[inline]
    unsafe fn resolve_with(
        field: &&F,
        pos: usize,
        resolver: Self::Resolver,
        out: *mut Self::Archived,
    ) {
        ArchivedBox::resolve_from_ref(*field, pos, resolver, out);
    }
}

impl<F: SerializeUnsized<S> + ?Sized, S: Fallible + ?Sized> SerializeWith<&F, S> for Boxed {
    #[inline]
    fn serialize_with(field: &&F, serializer: &mut S) -> Result<Self::Resolver, S::Error> {
        ArchivedBox::serialize_from_ref(*field, serializer)
    }
}