statum-macros 0.8.5

Proc macros for representing legal workflow and protocol states explicitly in Rust
Documentation 
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#![allow(unused_imports)]
extern crate self as statum;
pub use statum_core::__private;
pub use statum_core::TransitionInventory;
pub use statum_core::{
    CanTransitionMap, CanTransitionTo, CanTransitionWith, DataState, Error, MachineDescriptor,
    MachineGraph, MachineIntrospection, MachineStateIdentity, RebuildAttempt, RebuildReport, StateDescriptor, StateMarker,
    TransitionDescriptor, UnitState,
};
pub type Result<T> = core::result::Result<T, Error>;


use statum_macros::{machine, state, validators};


#[state]
enum TaskState {
    Draft,
    InProgress(Progress),
}

struct Progress {
    count: u8,
}

#[machine]
struct TaskMachine<TaskState> {
    name: String,
}

struct DbRow {
    status: &'static str,
}

#[validators(TaskMachine)]
impl DbRow {
    fn is_draft(&self) -> statum::Result<()> {
        let _ = name;
        if self.status == "draft" {
            Ok(())
        } else {
            Err(statum::Error::InvalidState)
        }
    }

    fn is_in_progress(&self) -> statum::Result<()> {
        let _ = name;
        if self.status == "progress" {
            Ok(())
        } else {
            Err(statum::Error::InvalidState)
        }
    }
}