turings-tarpit/fsmtest.cpp

#include <fmt/core.h>
#include "fsm.hpp"

using namespace fmt;

enum MyState {
  START, RUNNING, END
};

enum MyEvent {
  STARTED, PUSH, QUIT
};

class MyFSM : DeadSimpleFSM<MyState, MyEvent> {
public:
  void event(MyEvent ev) override {
    switch(_state) {
      FSM_STATE(START, start, ev);
      FSM_STATE(RUNNING, push, ev);
      FSM_STATE(END, quit, ev);
    }
  }

  void start(MyEvent ev) {
    println("<<< START");
    state(RUNNING);
  }

  void push(MyEvent ev) {
    println("<<< RUN");
    state(RUNNING);
  }

  void quit(MyEvent ev) {
    println("<<< STOP");
    state(END);
  }
};

int main() {
  MyFSM fsm;

  fsm.event(STARTED);
  fsm.event(PUSH);
  fsm.event(PUSH);
  fsm.event(PUSH);
  fsm.event(QUIT);
}