Trait MetaAction

pub trait MetaAction:
    Serialize
    + DeserializeOwned
    + Send
    + Sync
    + Clone
    + Debug {
    type Error: ErrorExt + Send + Sync;

    // Required methods
    fn set_protocol(&mut self, action: ProtocolAction);
    fn set_prev_version(&mut self, version: ManifestVersion);
    fn encode(&self) -> Result<Vec<u8>, Self::Error>;
    fn decode(
        bs: &[u8],
        reader_version: ProtocolVersion,
    ) -> Result<(Self, Option<ProtocolAction>), Self::Error>;
}

The action to alter metadata

Required Associated Types

type Error: ErrorExt + Send + Sync

Required Methods

fn set_protocol(&mut self, action: ProtocolAction)

Set a protocol action into meta action

fn set_prev_version(&mut self, version: ManifestVersion)

Set previous valid manifest version.

fn encode(&self) -> Result<Vec<u8>, Self::Error>

Encode this action into a byte vector

fn decode( bs: &[u8], reader_version: ProtocolVersion, ) -> Result<(Self, Option<ProtocolAction>), Self::Error>

Decode self from byte slice with reader protocol version, return error when reader version is not supported.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors