rkyv (archive) is a zero-copy deserialization framework for Rust.
- rkyv, the core library
- rkyv_dyn, which adds trait object support to rkyv
- rkyv_typename, a type naming library
- The rkyv book covers the motivation and architecture of rkyv
use rkyv::{
archived_root,
de::deserializers::AllocDeserializer,
ser::{serializers::AlignedSerializer, Serializer},
AlignedVec, Archive, Deserialize, Serialize,
};
#[derive(Archive, Deserialize, Serialize, Debug, PartialEq)]
struct Test {
int: u8,
string: String,
option: Option<Vec<i32>>,
}
let value = Test {
int: 42,
string: "hello world".to_string(),
option: Some(vec![1, 2, 3, 4]),
};
let mut serializer = AlignedSerializer::new(AlignedVec::new());
serializer
.serialize_value(&value)
.expect("failed to serialize value");
let buf = serializer.into_inner();
let archived = unsafe { archived_root::<Test>(buf.as_ref()) };
assert_eq!(archived.int, value.int);
assert_eq!(archived.string, value.string);
assert_eq!(archived.option, value.option);
let mut deserializer = AllocDeserializer;
let deserialized = archived
.deserialize(&mut deserializer)
.expect("failed to deserialize value");
assert_eq!(deserialized, value);