Struct Action

Source

pub struct Action {
    pub name: String,
    pub action_type: ActionType,
    /* private fields */
}

Expand description

An action that can be executed during state transitions

Fields§

§name: String

The name of this action

§action_type: ActionType

The type of action execution

Implementations§

Source §

impl Action

Source

pub fn new<F>( name: impl Into<String>, action_type: ActionType, executor: F, ) -> Self
where F: Fn(&mut Context, &Event) + Send + Sync + 'static,

Create a new action with a name and executor function

Examples found in repository ?

examples/traffic_light.rs (lines 30-32)

18fn create_traffic_light() -> rustate::Result<Machine> {
19    // Create the states
20    let green = State::new("green");
21    let yellow = State::new("yellow");
22    let red = State::new("red");
23
24    // Create the transitions
25    let green_to_yellow = Transition::new("green", "TIMER", "yellow");
26    let yellow_to_red = Transition::new("yellow", "TIMER", "red");
27    let red_to_green = Transition::new("red", "TIMER", "green");
28
29    // Define some actions
30    let log_green = Action::new("logGreen", ActionType::Entry, |_ctx, _evt| {
31        println!("Entering GREEN state - Go!")
32    });
33
34    let log_yellow = Action::new("logYellow", ActionType::Entry, |_ctx, _evt| {
35        println!("Entering YELLOW state - Slow down!")
36    });
37
38    let log_red = Action::new("logRed", ActionType::Entry, |_ctx, _evt| {
39        println!("Entering RED state - Stop!")
40    });
41
42    // Build the machine
43    let machine = MachineBuilder::new("trafficLight")
44        .state(green)
45        .state(yellow)
46        .state(red)
47        .initial("green")
48        .transition(green_to_yellow)
49        .transition(yellow_to_red)
50        .transition(red_to_green)
51        .on_entry("green", log_green)
52        .on_entry("yellow", log_yellow)
53        .on_entry("red", log_red)
54        .build()?;
55
56    Ok(machine)
57}

More examples

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examples/model_based_testing.rs (lines 143-145)

131fn create_test_machine() -> Machine {
132    // 状態の作成
133    let green = State::new("green");
134    let yellow = State::new("yellow");
135    let red = State::new("red");
136
137    // 遷移の作成
138    let green_to_yellow = Transition::new("green", "TIMER", "yellow");
139    let yellow_to_red = Transition::new("yellow", "TIMER", "red");
140    let red_to_green = Transition::new("red", "TIMER", "green");
141
142    // アクションの定義
143    let log_green = Action::new("logGreen", ActionType::Entry, |_ctx, _evt| {
144        println!("緑信号になりました - 進んでください")
145    });
146
147    let log_yellow = Action::new("logYellow", ActionType::Entry, |_ctx, _evt| {
148        println!("黄信号になりました - 注意してください")
149    });
150
151    let log_red = Action::new("logRed", ActionType::Entry, |_ctx, _evt| {
152        println!("赤信号になりました - 停止してください")
153    });
154
155    // マシンの構築
156    MachineBuilder::new("trafficLight")
157        .state(green)
158        .state(yellow)
159        .state(red)
160        .initial("green")
161        .transition(green_to_yellow)
162        .transition(yellow_to_red)
163        .transition(red_to_green)
164        .on_entry("green", log_green)
165        .on_entry("yellow", log_yellow)
166        .on_entry("red", log_red)
167        .build()
168        .unwrap()
169}

examples/hierarchical.rs (lines 74-76)

36fn create_player() -> rustate::Result<Machine> {
37    // Create states
38    let power_off = State::new("powerOff");
39
40    let mut player = State::new_compound("player", "stopped");
41    player.parent = Some("root".to_string());
42
43    let mut stopped = State::new("stopped");
44    stopped.parent = Some("player".to_string());
45
46    let mut playing = State::new_compound("playing", "normal");
47    playing.parent = Some("player".to_string());
48
49    let mut normal = State::new("normal");
50    normal.parent = Some("playing".to_string());
51
52    let mut double_speed = State::new("doubleSpeed");
53    double_speed.parent = Some("playing".to_string());
54
55    let mut paused = State::new("paused");
56    paused.parent = Some("player".to_string());
57
58    // Create transitions
59    let power_toggle = Transition::new("powerOff", "POWER", "player");
60    let power_off_transition = Transition::new("player", "POWER", "powerOff");
61
62    let play = Transition::new("stopped", "PLAY", "playing");
63    let stop = Transition::new("playing", "STOP", "stopped");
64    let pause = Transition::new("playing", "PAUSE", "paused");
65    let resume = Transition::new("paused", "PLAY", "playing");
66
67    let speed_up = Transition::new("normal", "SPEED_UP", "doubleSpeed");
68    let speed_normal = Transition::new("doubleSpeed", "SPEED_NORMAL", "normal");
69
70    let next_track = Transition::internal_transition("playing", "NEXT");
71    let prev_track = Transition::internal_transition("playing", "PREV");
72
73    // Create guards and actions
74    let log_power_on = Action::new("logPowerOn", ActionType::Entry, |_ctx, _evt| {
75        println!("Power ON - Player ready")
76    });
77
78    let log_power_off = Action::new("logPowerOff", ActionType::Entry, |_ctx, _evt| {
79        println!("Power OFF")
80    });
81
82    let log_playing = Action::new("logPlaying", ActionType::Entry, |_ctx, _evt| {
83        println!("Playing track")
84    });
85
86    let log_stopped = Action::new("logStopped", ActionType::Entry, |_ctx, _evt| {
87        println!("Stopped")
88    });
89
90    let log_paused = Action::new("logPaused", ActionType::Entry, |_ctx, _evt| {
91        println!("Paused")
92    });
93
94    let log_double_speed = Action::new("logDoubleSpeed", ActionType::Entry, |_ctx, _evt| {
95        println!("Playing at double speed")
96    });
97
98    let log_normal_speed = Action::new("logNormalSpeed", ActionType::Entry, |_ctx, _evt| {
99        println!("Playing at normal speed")
100    });
101
102    let next_track_action = Action::new("nextTrack", ActionType::Transition, |ctx, _evt| {
103        let current_track = ctx.get::<usize>("track").unwrap_or(0);
104        let next_track = current_track + 1;
105        println!("Changing to track {}", next_track);
106        let _ = ctx.set("track", next_track);
107    });
108
109    let prev_track_action = Action::new("prevTrack", ActionType::Transition, |ctx, _evt| {
110        let current_track = ctx.get::<usize>("track").unwrap_or(0);
111        let prev_track = if current_track > 0 {
112            current_track - 1
113        } else {
114            0
115        };
116        println!("Changing to track {}", prev_track);
117        let _ = ctx.set("track", prev_track);
118    });
119
120    // Create context with initial track
121    let mut context = Context::new();
122    let _ = context.set("track", 0);
123
124    // Create and configure the state machine
125    let mut next_track = next_track;
126    next_track.with_action(next_track_action);
127
128    let mut prev_track = prev_track;
129    prev_track.with_action(prev_track_action);
130
131    let machine = MachineBuilder::new("musicPlayer")
132        .initial("powerOff")
133        .state(power_off)
134        .state(player)
135        .state(stopped)
136        .state(playing)
137        .state(normal)
138        .state(double_speed)
139        .state(paused)
140        .transition(power_toggle)
141        .transition(power_off_transition)
142        .transition(play)
143        .transition(stop)
144        .transition(pause)
145        .transition(resume)
146        .transition(speed_up)
147        .transition(speed_normal)
148        .transition(next_track)
149        .transition(prev_track)
150        .on_entry("player", log_power_on)
151        .on_entry("powerOff", log_power_off)
152        .on_entry("playing", log_playing)
153        .on_entry("stopped", log_stopped)
154        .on_entry("paused", log_paused)
155        .on_entry("doubleSpeed", log_double_speed)
156        .on_entry("normal", log_normal_speed)
157        .context(context)
158        .build()?;
159
160    Ok(machine)
161}