#!dmd -run

import std.stdio;

abstract class Sensor(T) {
    abstract T value();

    @property string name(){
        return m_name;
    }

protected:
    string m_name;
}

class TempSensor : Sensor!float {
    this(){
        m_name = "TempSensor";
    }

    override float value(){
        //extract some data from hardware
        writeln("Getting value of TempSensor");
        return 0.0;
    }
}

class SomethingSensor : Sensor!int {
    this(){
        m_name = "SomethingSensor";
    }

    override int value(){
        //extract some data from hardware
        writeln("Getting value of SomethingSensor");
        return 0;
    }
}


void main() {
    //How to store all sensors in a single array and execute specific functions?

    //First try:
    Object[2] sensors;
    sensors[0] = cast(Object)(new TempSensor());
    sensors[1] = cast(Object)(new SomethingSensor());

    //But now, How can i call value() without knowing its final type?
    //I can't cast to Sensor!T to call value()


    //Second try:
    Sensor!(void[])[2] sensors2;
    sensors2[0] = cast(Sensor!(void[]))(new TempSensor());
    sensors2[1] = cast(Sensor!(void[]))(new SomethingSensor());

    //seems better but:
    sensors2[0].value();//Getting a seg fault
}