D:\git\skunkworks\herald-for-cpp\herald\include\herald\sensor_delegate.h

Source (jump to first uncovered line)
//  Copyright 2020-2021 Herald Project Contributors
//  SPDX-License-Identifier: Apache-2.0
//

#ifndef HERALD_SENSOR_DELEGATE_H
#define HERALD_SENSOR_DELEGATE_H

#include "datatype/sensor_type.h"
#include "datatype/proximity.h"
#include "datatype/payload_data.h"
#include "datatype/target_identifier.h"
#include "datatype/immediate_send_data.h"
#include "datatype/location.h"
#include "datatype/sensor_state.h"

#include <variant>
#include <array>

namespace herald {
  
using namespace datatype;

// /// \brief Base interface for classes wishing to implement callbacks for core low-level Herald proximity and presence events.
// class SensorDelegate {
// public:
//   SensorDelegate() = default;
//   virtual ~SensorDelegate() = default;

  
//   /// Detection of a target with an ephemeral identifier, e.g. BLE central detecting a BLE peripheral.
//   virtual void sensor(SensorType sensor, const TargetIdentifier& didDetect) = 0;

//   /// Read payload data from target, e.g. encrypted device identifier from BLE peripheral after successful connection.
//   virtual void sensor(SensorType sensor, const PayloadData& didRead, const TargetIdentifier& fromTarget) = 0;

//   /// Receive written immediate send data from target, e.g. important timing signal.
//   virtual void sensor(SensorType sensor, const ImmediateSendData& didReceive, const TargetIdentifier& fromTarget) = 0;

//   /// Read payload data of other targets recently acquired by a target, e.g. Android peripheral sharing payload data acquired from nearby iOS peripherals.
//   virtual void sensor(SensorType sensor, const std::vector<PayloadData>& didShare, const TargetIdentifier& fromTarget) = 0;

//   /// Measure proximity to target, e.g. a sample of RSSI values from BLE peripheral.
//   virtual void sensor(SensorType sensor, const Proximity& didMeasure, const TargetIdentifier& fromTarget) = 0;

//   /// Detection of time spent at location, e.g. at specific restaurant between 02/06/2020 19:00 and 02/06/2020 21:00
//   template <typename LocationT>
//   void sensor(SensorType sensor, const Location<LocationT>& didVisit) {}

//   /// Measure proximity to target with payload data. Combines didMeasure and didRead into a single convenient delegate method
//   virtual void sensor(SensorType sensor, const Proximity& didMeasure, const TargetIdentifier& fromTarget, const PayloadData& withPayload) = 0;

//   /// Sensor state update
//   virtual void sensor(SensorType sensor, const SensorState& didUpdateState) = 0;
// };

// TODO move this into a general header
template<typename F, typename... Args, typename = decltype(std::declval<F>()(std::declval<Args&&>()...))>
std::true_type isValidImpl(void*);

template<typename F, typename... Args>
std::false_type isValidImpl(...);

inline constexpr auto isValid = [] (auto f) {
  return [](auto&&... args) {
    return decltype(isValidImpl<decltype(f),decltype(args)&&...>(nullptr)){};
  };
};

template<typename T>
struct TypeT {
  using Type = T;
};

template<typename T>
constexpr auto type = TypeT<T>{};

template<typename T>
T valueT(TypeT<T>);


constexpr auto hasSensorFunction = isValid(
  [](auto&& s,auto&& sensor,auto&& didRead,auto&& fromTarget) ->
    decltype(((decltype(s))s).get().sensor(sensor,didRead,fromTarget)) {}
);
// template<typename T,typename SE, typename DR, typename FT>
// using HasSensorFunctionT = decltype(hasSensorFunction(std::declval<T>(),std::declval<SE>(),std::declval<DR>(),std::declval<FT>()));
template<typename T,typename... Args>
using HasSensorFunctionT = decltype(hasSensorFunction(std::declval<T>(),std::declval<Args>()...));
template<typename T,typename... Args>
constexpr auto HasSensorFunctionV = HasSensorFunctionT<T,Args...>::value;

/// \brief A set of variant typed Sensor Delegate instances. Delegate callbacks can be invoked on the whole set, if supported by each.
template <typename... SensorDelegateTs>
class SensorDelegateSet {
public:
  static constexpr std::size_t Size = sizeof...(SensorDelegateTs);

  SensorDelegateSet(SensorDelegateTs&... dels) : 
    //delegates({std::variant<std::reference_wrapper<SensorDelegateTs&...>>(std::reference_wrapper<SensorDelegateTs&...>(dels...))}) {
    // delegates(std::experimental::make_array({std::reference_wrapper<SensorDelegateTs&...>(dels...)})) {
    delegates(std::array<
      std::variant<std::reference_wrapper<SensorDelegateTs>...>
      ,Size
    >({std::variant<std::reference_wrapper<SensorDelegateTs>...>(dels)...})) {
    // addDelegates(0,dels...);
  }

  // auto begin() -> decltype(std::declval<std::array<
  //     std::variant<std::reference_wrapper<SensorDelegateTs>...>
  //     ,Size
  //   >>().begin()) {
  //   return delegates.begin();
  // }

  // auto end() -> decltype(std::declval<std::array<
  //     std::variant<std::reference_wrapper<SensorDelegateTs>...>
  //     ,Size
  //   >>().end()) {
  //   return delegates.end();
  // }

  /// \brief Detection of a target with an ephemeral identifier, e.g. BLE central detecting a BLE peripheral.
  void sensor(SensorType sensor, const TargetIdentifier& didDetect) {
        for (auto& delegateV : delegates) {
      std::visit([sensor,didDetect](auto&& arg) {
        // ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
        if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didDetect)>) {
          ((decltype(arg))arg).get().sensor(sensor,didDetect); // cast to call derived class function
        }
      }, delegateV);
    }
  }

  /// \brief Read payload data from target, e.g. encrypted device identifier from BLE peripheral after successful connection.
  void sensor(SensorType sensor, const PayloadData& didRead, const TargetIdentifier& fromTarget) {
    for (auto& delegateV : delegates) {
      std::visit([sensor,didRead,fromTarget](auto&& arg) {
        // ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
        if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didRead),decltype(fromTarget)>) {
          ((decltype(arg))arg).get().sensor(sensor,didRead,fromTarget); // cast to call derived class function
        }
      }, delegateV);
    }
  }

  /// \brief Receive written immediate send data from target, e.g. important timing signal.
  void sensor(SensorType sensor, const ImmediateSendData& didReceive, const TargetIdentifier& fromTarget) {
    for (auto& delegateV : delegates) {
      std::visit([sensor,didReceive,fromTarget](auto&& arg) {
        // ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
        if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didReceive),decltype(fromTarget)>) {
          ((decltype(arg))arg).get().sensor(sensor,didReceive,fromTarget); // cast to call derived class function
        }
      }, delegateV);
    }
  }

  /// \brief Read payload data of other targets recently acquired by a target, e.g. Android peripheral sharing payload data acquired from nearby iOS peripherals.
  void sensor(SensorType sensor, const DataSections<8>& didShare, const TargetIdentifier& fromTarget) {
    for (auto& delegateV : delegates) {
      std::visit([sensor,didShare,fromTarget](auto&& arg) {
        // ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
        if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didShare),decltype(fromTarget)>) {
          ((decltype(arg))arg).get().sensor(sensor,didShare,fromTarget); // cast to call derived class function
        }
      }, delegateV);
    }
  }

  /// \brief Measure proximity to target, e.g. a sample of RSSI values from BLE peripheral.
  void sensor(SensorType sensor, const Proximity& didMeasure, const TargetIdentifier& fromTarget) {
    for (auto& delegateV : delegates) {
      std::visit([sensor,didMeasure,fromTarget](auto&& arg) {
        // ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
        if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didMeasure),decltype(fromTarget)>) {
          ((decltype(arg))arg).get().sensor(sensor,didMeasure,fromTarget); // cast to call derived class function
        }
      }, delegateV);
    }
  }

  /// \brief Detection of time spent at location, e.g. at specific restaurant between 02/06/2020 19:00 and 02/06/2020 21:00
  template <typename LocationT>
  void sensor(SensorType sensor, const Location<LocationT>& didVisit) {
    for (auto& delegateV : delegates) {
      std::visit([sensor,didVisit](auto&& arg) {
        // ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
        if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didVisit)>) {
          ((decltype(arg))arg).get().sensor(sensor,didVisit); // cast to call derived class function
        }
      }, delegateV);
    }
  }

  /// \brief Measure proximity to target with payload data. Combines didMeasure and didRead into a single convenient delegate method
  void sensor(SensorType sensor, const Proximity& didMeasure, const TargetIdentifier& fromTarget, const PayloadData& withPayload) {
    for (auto& delegateV : delegates) {
      std::visit([sensor,didMeasure,fromTarget,withPayload](auto&& arg) {
        // ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
        if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didMeasure),decltype(fromTarget),decltype(withPayload)>) {
          ((decltype(arg))arg).get().sensor(sensor,didMeasure,fromTarget,withPayload); // cast to call derived class function
        }
      }, delegateV);
    }
  }

  /// \brief Sensor state update
  void sensor(SensorType sensor, const SensorState& didUpdateState) {
    for (auto& delegateV : delegates) {
      std::visit([sensor,didUpdateState](auto&& arg) {
        // ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
        if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didUpdateState)>) {
          ((decltype(arg))arg).get().sensor(sensor,didUpdateState); // cast to call derived class function
        }
      }, delegateV);
    }
  }

private:
  std::array<
    std::variant<std::reference_wrapper<SensorDelegateTs>...>
    ,
    Size
  > delegates;

  // template <typename LastT>
  // constexpr void addDelegates(int nextPos,LastT& last) {
  //   delegates[nextPos] = std::reference_wrapper<LastT>(last);
  // }

  // template <typename FirstT, typename SecondT, typename... RestT>
  // constexpr void addDelegates(int nextPos,FirstT& first, SecondT& second, RestT&... rest) {
  //   delegates[nextPos] = std::reference_wrapper<FirstT>(first);
  //   ++nextPos;
  //   addDelegates(nextPos,second,rest...);
  // }
};


} // end namespace

#endif

Coverage Report

Created: 2021-08-28 18:14

Line	Count	Source (jump to first uncovered line)
1		// Copyright 2020-2021 Herald Project Contributors
2		// SPDX-License-Identifier: Apache-2.0
3		//
4
5		#ifndef HERALD_SENSOR_DELEGATE_H
6		#define HERALD_SENSOR_DELEGATE_H
7
8		#include "datatype/sensor_type.h"
9		#include "datatype/proximity.h"
10		#include "datatype/payload_data.h"
11		#include "datatype/target_identifier.h"
12		#include "datatype/immediate_send_data.h"
13		#include "datatype/location.h"
14		#include "datatype/sensor_state.h"
15
16		#include <variant>
17		#include <array>
18
19		namespace herald {
20
21		using namespace datatype;
22
23		// /// \brief Base interface for classes wishing to implement callbacks for core low-level Herald proximity and presence events.
24		// class SensorDelegate {
25		// public:
26		// SensorDelegate() = default;
27		// virtual ~SensorDelegate() = default;
28
29
30		// /// Detection of a target with an ephemeral identifier, e.g. BLE central detecting a BLE peripheral.
31		// virtual void sensor(SensorType sensor, const TargetIdentifier& didDetect) = 0;
32
33		// /// Read payload data from target, e.g. encrypted device identifier from BLE peripheral after successful connection.
34		// virtual void sensor(SensorType sensor, const PayloadData& didRead, const TargetIdentifier& fromTarget) = 0;
35
36		// /// Receive written immediate send data from target, e.g. important timing signal.
37		// virtual void sensor(SensorType sensor, const ImmediateSendData& didReceive, const TargetIdentifier& fromTarget) = 0;
38
39		// /// Read payload data of other targets recently acquired by a target, e.g. Android peripheral sharing payload data acquired from nearby iOS peripherals.
40		// virtual void sensor(SensorType sensor, const std::vector<PayloadData>& didShare, const TargetIdentifier& fromTarget) = 0;
41
42		// /// Measure proximity to target, e.g. a sample of RSSI values from BLE peripheral.
43		// virtual void sensor(SensorType sensor, const Proximity& didMeasure, const TargetIdentifier& fromTarget) = 0;
44
45		// /// Detection of time spent at location, e.g. at specific restaurant between 02/06/2020 19:00 and 02/06/2020 21:00
46		// template <typename LocationT>
47		// void sensor(SensorType sensor, const Location<LocationT>& didVisit) {}
48
49		// /// Measure proximity to target with payload data. Combines didMeasure and didRead into a single convenient delegate method
50		// virtual void sensor(SensorType sensor, const Proximity& didMeasure, const TargetIdentifier& fromTarget, const PayloadData& withPayload) = 0;
51
52		// /// Sensor state update
53		// virtual void sensor(SensorType sensor, const SensorState& didUpdateState) = 0;
54		// };
55
56		// TODO move this into a general header
57		template<typename F, typename... Args, typename = decltype(std::declval<F>()(std::declval<Args&&>()...))>
58		std::true_type isValidImpl(void*);
59
60		template<typename F, typename... Args>
61		std::false_type isValidImpl(...);
62
63	0	inline constexpr auto isValid = [] (auto f) {
64	0	return [](auto&&... args) {
65	0	return decltype(isValidImpl<decltype(f),decltype(args)&&...>(nullptr)){};
66	0	};
67	0	}; Unexecuted instantiation: memoryarena-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: datatypes-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: base64string-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: datetime-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: randomuuid-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: uint8-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: uint16-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: uint32-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: uint64-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: sha256-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: distribution-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: sensorlogger-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: errorcontactlog-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: data-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: datatypesdataderived-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: blemacaddress-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: targetidentifier-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: test-util.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: crossplatform-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: beaconpayload-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: extendeddata-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: fixedpayload-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: bledevice-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: sample-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: ranges-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: analysisrunner-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: analysissensor-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: gaussian-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: advertparser-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: bledatabase-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: blecoordinator-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z Unexecuted instantiation: coordinator-tests.cpp:??$?RV<lambda_0>@herald@@@<lambda_1>@herald@@QEBA?A?<auto>@@V<lambda_0>@1@@Z
68
69		template<typename T>
70		struct TypeT {
71		using Type = T;
72		};
73
74		template<typename T>
75		constexpr auto type = TypeT<T>{};
76
77		template<typename T>
78		T valueT(TypeT<T>);
79
80
81		constexpr auto hasSensorFunction = isValid(
82		[](auto&& s,auto&& sensor,auto&& didRead,auto&& fromTarget) ->
83		decltype(((decltype(s))s).get().sensor(sensor,didRead,fromTarget)) {}
84		);
85		// template<typename T,typename SE, typename DR, typename FT>
86		// using HasSensorFunctionT = decltype(hasSensorFunction(std::declval<T>(),std::declval<SE>(),std::declval<DR>(),std::declval<FT>()));
87		template<typename T,typename... Args>
88		using HasSensorFunctionT = decltype(hasSensorFunction(std::declval<T>(),std::declval<Args>()...));
89		template<typename T,typename... Args>
90		constexpr auto HasSensorFunctionV = HasSensorFunctionT<T,Args...>::value;
91
92		/// \brief A set of variant typed Sensor Delegate instances. Delegate callbacks can be invoked on the whole set, if supported by each.
93		template <typename... SensorDelegateTs>
94		class SensorDelegateSet {
95		public:
96		static constexpr std::size_t Size = sizeof...(SensorDelegateTs);
97
98		SensorDelegateSet(SensorDelegateTs&... dels) :
99		//delegates({std::variant<std::reference_wrapper<SensorDelegateTs&...>>(std::reference_wrapper<SensorDelegateTs&...>(dels...))}) {
100		// delegates(std::experimental::make_array({std::reference_wrapper<SensorDelegateTs&...>(dels...)})) {
101		delegates(std::array<
102		std::variant<std::reference_wrapper<SensorDelegateTs>...>
103		,Size
104		>({std::variant<std::reference_wrapper<SensorDelegateTs>...>(dels)...})) {
105		// addDelegates(0,dels...);
106		}
107
108		// auto begin() -> decltype(std::declval<std::array<
109		// std::variant<std::reference_wrapper<SensorDelegateTs>...>
110		// ,Size
111		// >>().begin()) {
112		// return delegates.begin();
113		// }
114
115		// auto end() -> decltype(std::declval<std::array<
116		// std::variant<std::reference_wrapper<SensorDelegateTs>...>
117		// ,Size
118		// >>().end()) {
119		// return delegates.end();
120		// }
121
122		/// \brief Detection of a target with an ephemeral identifier, e.g. BLE central detecting a BLE peripheral.
123		void sensor(SensorType sensor, const TargetIdentifier& didDetect) {
124		for (auto& delegateV : delegates) {
125		std::visit([sensor,didDetect](auto&& arg) {
126		// ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
127		if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didDetect)>) {
128		((decltype(arg))arg).get().sensor(sensor,didDetect); // cast to call derived class function
129		}
130		}, delegateV);
131		}
132		}
133
134		/// \brief Read payload data from target, e.g. encrypted device identifier from BLE peripheral after successful connection.
135		void sensor(SensorType sensor, const PayloadData& didRead, const TargetIdentifier& fromTarget) {
136		for (auto& delegateV : delegates) {
137		std::visit([sensor,didRead,fromTarget](auto&& arg) {
138		// ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
139		if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didRead),decltype(fromTarget)>) {
140		((decltype(arg))arg).get().sensor(sensor,didRead,fromTarget); // cast to call derived class function
141		}
142		}, delegateV);
143		}
144		}
145
146		/// \brief Receive written immediate send data from target, e.g. important timing signal.
147		void sensor(SensorType sensor, const ImmediateSendData& didReceive, const TargetIdentifier& fromTarget) {
148		for (auto& delegateV : delegates) {
149		std::visit([sensor,didReceive,fromTarget](auto&& arg) {
150		// ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
151		if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didReceive),decltype(fromTarget)>) {
152		((decltype(arg))arg).get().sensor(sensor,didReceive,fromTarget); // cast to call derived class function
153		}
154		}, delegateV);
155		}
156		}
157
158		/// \brief Read payload data of other targets recently acquired by a target, e.g. Android peripheral sharing payload data acquired from nearby iOS peripherals.
159		void sensor(SensorType sensor, const DataSections<8>& didShare, const TargetIdentifier& fromTarget) {
160		for (auto& delegateV : delegates) {
161		std::visit([sensor,didShare,fromTarget](auto&& arg) {
162		// ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
163		if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didShare),decltype(fromTarget)>) {
164		((decltype(arg))arg).get().sensor(sensor,didShare,fromTarget); // cast to call derived class function
165		}
166		}, delegateV);
167		}
168		}
169
170		/// \brief Measure proximity to target, e.g. a sample of RSSI values from BLE peripheral.
171		void sensor(SensorType sensor, const Proximity& didMeasure, const TargetIdentifier& fromTarget) {
172		for (auto& delegateV : delegates) {
173		std::visit([sensor,didMeasure,fromTarget](auto&& arg) {
174		// ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
175		if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didMeasure),decltype(fromTarget)>) {
176		((decltype(arg))arg).get().sensor(sensor,didMeasure,fromTarget); // cast to call derived class function
177		}
178		}, delegateV);
179		}
180		}
181
182		/// \brief Detection of time spent at location, e.g. at specific restaurant between 02/06/2020 19:00 and 02/06/2020 21:00
183		template <typename LocationT>
184		void sensor(SensorType sensor, const Location<LocationT>& didVisit) {
185		for (auto& delegateV : delegates) {
186		std::visit([sensor,didVisit](auto&& arg) {
187		// ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
188		if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didVisit)>) {
189		((decltype(arg))arg).get().sensor(sensor,didVisit); // cast to call derived class function
190		}
191		}, delegateV);
192		}
193		}
194
195		/// \brief Measure proximity to target with payload data. Combines didMeasure and didRead into a single convenient delegate method
196		void sensor(SensorType sensor, const Proximity& didMeasure, const TargetIdentifier& fromTarget, const PayloadData& withPayload) {
197		for (auto& delegateV : delegates) {
198		std::visit([sensor,didMeasure,fromTarget,withPayload](auto&& arg) {
199		// ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
200		if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didMeasure),decltype(fromTarget),decltype(withPayload)>) {
201		((decltype(arg))arg).get().sensor(sensor,didMeasure,fromTarget,withPayload); // cast to call derived class function
202		}
203		}, delegateV);
204		}
205		}
206
207		/// \brief Sensor state update
208		void sensor(SensorType sensor, const SensorState& didUpdateState) {
209		for (auto& delegateV : delegates) {
210		std::visit([sensor,didUpdateState](auto&& arg) {
211		// ONLY INVOKE IF WE KNOW THIS FUNCTION EXISTS
212		if constexpr (HasSensorFunctionV<decltype(arg),decltype(sensor),decltype(didUpdateState)>) {
213		((decltype(arg))arg).get().sensor(sensor,didUpdateState); // cast to call derived class function
214		}
215		}, delegateV);
216		}
217		}
218
219		private:
220		std::array<
221		std::variant<std::reference_wrapper<SensorDelegateTs>...>
222		,
223		Size
224		> delegates;
225
226		// template <typename LastT>
227		// constexpr void addDelegates(int nextPos,LastT& last) {
228		// delegates[nextPos] = std::reference_wrapper<LastT>(last);
229		// }
230
231		// template <typename FirstT, typename SecondT, typename... RestT>
232		// constexpr void addDelegates(int nextPos,FirstT& first, SecondT& second, RestT&... rest) {
233		// delegates[nextPos] = std::reference_wrapper<FirstT>(first);
234		// ++nextPos;
235		// addDelegates(nextPos,second,rest...);
236		// }
237		};
238
239
240		} // end namespace
241
242		#endif