flowstate 0.2.0

Workflow runtime powered by finite state machines.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

use flowstate::{Transition, Workflow as _, WorkflowState};

#[derive(flowstate::Workflow)]
#[flowstate(result = WorkflowResult)]
struct BasicWorkflow<State> {
    #[state]
    _state: State,
}

struct StateA;

impl WorkflowState<WorkflowResult> for BasicWorkflow<StateA> {
    fn next(self: Box<Self>) -> Transition<WorkflowResult> {
        self.transition(StateB)
    }
}

struct StateB;

impl WorkflowState<WorkflowResult> for BasicWorkflow<StateB> {
    fn next(self: Box<Self>) -> Transition<WorkflowResult> {
        self.result(WorkflowResult)
    }
}

#[derive(Debug, PartialEq)]
struct WorkflowResult;

#[test]
fn test_basic_workflow() {
    let workflow = BasicWorkflow::new(StateA);
    let result = workflow.run();
    assert_eq!(result, WorkflowResult);
}