rkyv (archive) is a zero-copy deserialization framework for Rust.

API Documentation

• rkyv, the core library
• rkyv_dyn, which adds trait object support to rkyv
• rkyv_typename, a type naming library

Book

• The rkyv book covers the motivation and architecture of rkyv

Sister Crates:

• bytecheck, which rkyv uses for validation
• ptr_meta, which rkyv uses for pointer manipulation

rkyv in action

```rust use rkyv::{ archived_value, de::deserializers::AllocDeserializer, ser::{ serializers::WriteSerializer, Serializer, }, Archive, Serialize, Deserialize, };

[derive(Archive, Deserialize, Serialize, Debug, PartialEq)]

struct Test { int: u8, string: String, option: Option>, }

fn main() { let value = Test { int: 42, string: "hello world".to_string(), option: Some(vec![1, 2, 3, 4]), };

let mut serializer = WriteSerializer::new(Vec::new());
let pos = serializer.serialize_value(&value).expect("failed to serialize value");
let buf = serializer.into_inner();

let archived = unsafe { archived_value::<Test>(buf.as_ref(), pos) };
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);

} ```