Crate zestors_codegen 

The derive macros of zestors, re-exported in zestors::prelude:

• Message: a message, fire-and-forget or with a reply.
• Interface: the set of messages an actor accepts.
• HandlerInterface: dispatch from an interface to a Handler’s Handle<M> implementations.
• StableId: a message’s id on the wire, for sending it to other nodes.

Attributes

All derives read #[msg(...)] and #[zestors(...)]; the two are interchangeable.

Key	Used by	Meaning
reply = T	Message	The message expects a reply of type T. Quote types with generics: reply = "Option<u32>".
id = "<uuid>"	StableId	The message’s id. Required.
no_auto_register	StableId	Leave the type out of ClusterConfig::auto_register.
interface_path = "path"	Message, Interface	Where to find zestors-interface. Default ::zestors::interface.
actor_path = "path"	HandlerInterface	Where to find zestors-actor. Default ::zestors::actor.
distr_path = "path"	StableId	Where to find zestors-distr. Default ::zestors::distr.

The path keys are only needed when depending on the zestors-* crates directly instead of on zestors.

Derive Macros

HandlerInterface

Derives the HandlerInterface trait for an enum, which dispatches each variant to the Handle<M> implementation of a Handler. Use it next to #[derive(Interface)] on the enum that is the handler’s Interface.

Interface

Derives the Interface trait for an enum: the set of messages an actor accepts.

Message

Derives the Message trait.

StableId

Derives the StableId trait, giving the message a stable, globally unique MessageId that identifies it across nodes.