Main optional.i file

optional.i

%{
#include "optionalvalue.h"
%}

// Provide simplified declarations of various template classes we use for SWIG.
template <typename T>
class OptionalValue
{
public:
  OptionalValue();
  OptionalValue(const T& value);
  OptionalValue(const OptionalValue& other);
  OptionalValue& operator=(const OptionalValue& other);

  bool IsValid() const;

  const T& Get() const;
};

#if defined(SWIGCSHARP)
    %include "csharp/optional.i"
#elif defined(SWIGJAVA)
    %include "java/optional.i"
#elif defined(SWIGPYTHON)
    %include "python/optional.i"
#else
    #error "No OptionalValue<> typemaps for this language."
#endif

// If there is no language-specific DEFINE_OPTIONAL_CLASS() definition, assume
// that we only have "simple" optional values.
#ifndef DEFINE_OPTIONAL_CLASS
%define DEFINE_OPTIONAL_CLASS(scope, classname)
DEFINE_OPTIONAL_SIMPLE(Optional ## classname, scope::classname)
%enddef
#endif