Derive Macro Encode 

#[derive(Encode)]
{
    // Attributes available to this derive:
    #[codec]
    #[index]
}

Derive the Encode trait for a message.

A #[codec(..)] attribute must be present to select the serialization method and the same attribute is shared with Decode. Encoding and decoding of the same message type must use the same method. The attribute also supports an optional bridge type that serves as an intermediary for encoding and decoding, which is useful when the message type itself cannot directly implement the required traits. Currently there are three supported codec methods:

• #[codec(prost)] — delegates to prost::Message::encode_to_vec. The target type (or the bridge type) must implement prost::Message.
• #[codec(zerocopy)] — delegates to zerocopy::IntoBytes::as_bytes. The target type (or the bridge type) must implement zerocopy::IntoBytes.
• #[codec(rkyv)] — delegates to rkyv::to_bytes. The target type (or the bridge type) must implement rkyv::Serialize.

If a bridge type T is specified, the bridge type must be convertible from the target type with impl From<&Self> for T.

A #[index(N)] attribute must also be present to set the Encode::ID constant with the given u64 literal. The index in Encode and Decode must be the same for the same message type.

Example

use acktor_derive::Encode;

#[derive(zerocopy::IntoBytes, Encode)]
#[codec(zerocopy)]
#[index(1)]
struct Ping(u64);