sr_conditional.hpp

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// Copyright 2021 RobosoftAI Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#pragma once
#include <boost/statechart/event.hpp>
#include <map>
#include <smacc2/common.hpp>
#include <smacc2/smacc_state_reactor.hpp>
#include <typeinfo>
 
namespace smacc2
{
namespace state_reactors
{
template <typename TSource, typename TObjectTag = EmptyObjectTag>
struct EvConditionalTrue : sc::event<EvConditionalTrue<TSource, TObjectTag>>
{
};
 
template <typename TEv>
class SrConditional : public StateReactor
{
private:
  std::map<const std::type_info *, bool> triggeredEvents;
  bool conditionFlag = false;
 
public:
  SrConditional(std::function<bool(TEv *)> sr_conditionalFunction)
  {
    std::function<void(TEv *)> callback = [this, sr_conditionalFunction](TEv * ev)
    {
      bool condition = sr_conditionalFunction(ev);
      this->conditionFlag = condition;
    };
 
    this->createEventCallback(callback);
  }
 
  bool triggers() { return this->conditionFlag; }
};
}  // namespace state_reactors
}  // namespace smacc2