Код: Выделить всё
#include
#include
#include
template
class StateMachine
{
public:
StateMachine() : states_(Ss(this)...) {}
template
void setState()
{
current_state_ = &std::get(states_);
}
template
void emitEvent(E event)
{
setState();
}
void process()
{
std::visit([](auto &arg) {arg->process();}, current_state_);
}
private:
std::tuple states_;
std::variant current_state_ { &std::get(states_) };
};
template
class State
{
public:
State(SM* sm) : state_machine_(sm) {}
virtual void process() {};
protected:
SM* state_machine_;
};
namespace impl
{
/* Forward declarations */
class RunState;
class IdleState;
/* Events */
struct StopEvent {};
struct StartEvent {};
/* Transition map */
template
struct TransitionMap;
template
struct TransitionMap
{
using type = IdleState;
};
template
struct TransitionMap
{
using type = RunState;
};
template
struct TransitionMap
{
using type = IdleState;
};
template
struct TransitionMap
{
using type = RunState;
};
class IdleState : State
{
public:
/* Use parent constructor */
using State::State;
void process() override
{
std::cout
Подробнее здесь: [url]https://stackoverflow.com/questions/79512502/invalid-use-of-incomplete-type-in-templated-state-machine-implementation[/url]