GUI 编程有用有限状态机代替 OOP 的吗？

const FSM = function () {
    this.states = [];
    this.current = undefined;
    this.enabled = true;
};
FSM.prototype.add = function (name, enter, leave, ...event_foo_pairs) {
    let state = {
        __name__: name,
        enter: enter,
        leave: leave
    };
    event_foo_pairs.forEach(pairs => state[pairs[0]] = pairs[1]);
    this.states.push(state);
    this.states.length === 1 && this.go(name);
};
FSM.prototype.go = function (name, ...var_args) {
    const prev = this.states.filter(i => i.__name__ === this.current)
    const can_leave = prev.map(i => i.leave()).reduce((p, n) => p && n, true);
    if (can_leave) {
        const next = this.states.filter(i => i.__name__ === name);
        next.length === 0 && console.error('No such next jump: ', name);
        this.current = name;
        const ret = next.map(i => i.enter.apply(this, var_args)).reduce((p, n) => p && n, true);
        return ret;
    } else {
        console.warn('Can\'t leave state: ', this.current);
        console.warn(new Error().stack);
        return false;
    }
};
FSM.prototype.fire = function (event, ...var_args) {
    return this.states.filter(i => i.__name__ === this.current && i.hasOwnProperty(event)).map(s => s[event]).map(i => i.apply(this, var_args));
};