eg_conditional_generator.h

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#pragma once
#include <smacc/common.h>
#include <smacc/smacc_event_generator.h>
#include <smacc/smacc_updatable.h>
#include <typeinfo>
#include <boost/statechart/event.hpp>
#include <functional>
 
namespace smacc
{
    namespace event_generators
    {
        template <typename TSource, typename TState>
        struct EvTrue : sc::event<EvTrue<TSource, TState>>
        {
        };
 
        template <typename TSource, typename TState>
        struct EvFalse : sc::event<EvFalse<TSource, TState>>
        {
        };
 
        enum class ConditionalGeneratorMode
        {
            ONE_SHOT,
            ON_UPDATE
        };
 
        //-----------------------------------------------------------------------
        class EgConditionalGenerator : public smacc::SmaccEventGenerator, public ISmaccUpdatable
        {
        public:
            EgConditionalGenerator(ConditionalGeneratorMode mode, std::function <bool()> updatePredicate = nullptr);
 
            virtual void onEntry() override;
 
            template <typename TState, typename TSource>
            void onStateAllocation()
            {
                this->postEventTrue = [this]() { this->postEvent<EvTrue<TSource, TState>>(); };
                this->postEventFalse = [this]() { this->postEvent<EvFalse<TSource, TState>>(); };
            }
 
            virtual void update() override;
            ConditionalGeneratorMode mode_;
 
            void setPredicateFunction(std::function <bool()> updatePredicate);
 
        private:
            void checkPredicateAndPost();
            std::function<void()> postEventTrue;
            std::function<void()> postEventFalse;
            std::function<bool()> updatePredicate_;
        };
    } // namespace state_reactors
} // namespace smacc