Value.h

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#pragma once
#include "types.h"
 
namespace quisp::runtime {
 
union ValueUnion {
  int int_value;
  MeasurementOutcome outcome;
  ValueUnion(int val) : int_value(val) {}
  ValueUnion(MeasurementOutcome val) : outcome(val) {}
};
 
enum class ValueType {
  INT,
  MEASUREMENT_OUTCOME,
};
 
class MemoryValue {
 public:
  MemoryValue(int val) : type(ValueType::INT), val(val) {}
  MemoryValue(MeasurementOutcome val) : type(ValueType::MEASUREMENT_OUTCOME), val(val) {}
 
  int intValue() const {
    if (type != ValueType::INT) throw std::runtime_error("the value is not an integer");
    return val.int_value;
  }
 
  MeasurementOutcome outcome() const {
    if (type != ValueType::MEASUREMENT_OUTCOME) throw std::runtime_error("the value is not a MeasurementOutcome");
    return val.outcome;
  }
 
  ValueType type;
 
 private:
  ValueUnion val;
};
 
std::ostream& operator<<(std::ostream& stream, const MemoryValue& value);
 
}  // namespace quisp::runtime