vtk-m/vtkm/filter/FilterTraits.h
2018-02-23 10:47:20 -05:00

52 lines
1.7 KiB
C++

//============================================================================
// 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.
//
// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
// Copyright 2014 UT-Battelle, LLC.
// Copyright 2014 Los Alamos National Security.
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
#ifndef vtk_m_filter_FilterTraits_h
#define vtk_m_filter_FilterTraits_h
#include <vtkm/TypeListTag.h>
namespace vtkm
{
namespace filter
{
template <typename Filter>
class FilterTraits
{
public:
// A filter is able to state what subset of types it supports
// by default. By default we use ListTagUniversal to represent that the
// filter accepts all types specified by the users provided policy
using InputFieldTypeList = vtkm::ListTagUniversal;
};
template <typename DerivedPolicy, typename FilterType>
struct DeduceFilterFieldTypes
{
using FList = typename vtkm::filter::FilterTraits<FilterType>::InputFieldTypeList;
using PList = typename DerivedPolicy::FieldTypeList;
using TypeList = vtkm::ListTagIntersect<FList, PList>;
};
}
}
#endif //vtk_m_filter_FilterTraits_h