Function createMachine

创建状态机

Example

import { createMachine } from "@cyhfe/toolkit";
import { MachineDedinition } from "@cyhfe/toolkit/dist/es/createMachine";

enum MachineStates {
 ON = "on",
 OFF = "off",
}

enum MachineEvents {
 TOGGLE = "toggle",
}

const machineChart: MachineDedinition<MachineStates, MachineEvents> = {
 initialState: MachineStates.OFF,
 states: {
   [MachineStates.OFF]: {
     actions: {
       onEnter() {
         console.log("enter off");
       },
       onExit() {
         console.log("exit off");
       },
     },
     transitions: {
       [MachineEvents.TOGGLE]: {
         target: MachineStates.ON,
         action() {
           console.log("from off to on");
         },
       },
     },
   },
   [MachineStates.ON]: {
     actions: {
       onEnter() {
         console.log("enter on");
       },
       onExit() {
         console.log("exit on");
       },
     },
     transitions: {
       [MachineEvents.TOGGLE]: {
         target: MachineStates.OFF,
         action() {
           console.log("from on to off");
         },
       },
     },
   },
 },
};

const machine = createMachine(machineChart);

machine.subscribe(() => console.log(machine.state));

machine.send(MachineEvents.TOGGLE);

// exit off
// from off to on
// enter on
// on
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