//============================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
//  PURPOSE.  See the above copyright notice for more information.
//============================================================================

#ifndef vtk_m_source_Source_h
#define vtk_m_source_Source_h

#include <vtkm/cont/DataSet.h>
#include <vtkm/cont/Invoker.h>
#include <vtkm/source/vtkm_source_export.h>

namespace vtkm
{
namespace source
{

class VTKM_SOURCE_EXPORT Source
{
public:
  VTKM_CONT
  virtual ~Source() = default;

  vtkm::cont::DataSet Execute() const { return this->DoExecute(); }

protected:
  virtual vtkm::cont::DataSet DoExecute() const = 0;

  vtkm::cont::Invoker Invoke;
};

} // namespace source
} // namespace vtkm

#endif // vtk_m_source_Source_h