Procedural macros for the state machines crate.

This crate provides the state_machine! macro for defining type-safe state machines with transitions, guards, and callbacks.

Architecture

The macro implementation is split into several modules:

• types: Data structures representing state machines
• parser: Parsing macro input into our data structures
• codegen: Generating Rust code from the parsed structures
• validation: Validating state machine definitions

Example

use state_machines::state_machine;

state_machine! {
    name: Door,
    state: DoorState,
    initial: Closed,
    states: [Open, Closed],
    events: {
        open {
            transition: { from: Closed, to: Open }
        }
        close {
            transition: { from: Open, to: Closed }
        }
    }
}