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https://gitlab.kitware.com/vtk/vtk-m
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dfadaabfb7
By using decltype we can allow for more flexible types and remove the nasty '::template ' syntax.
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_cont_arg_TransportTagArrayIn_h
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#define vtk_m_cont_arg_TransportTagArrayIn_h
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#include <vtkm/Types.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/arg/Transport.h>
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namespace vtkm
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{
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namespace cont
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{
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namespace arg
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{
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/// \brief \c Transport tag for input arrays.
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///
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/// \c TransportTagArrayIn is a tag used with the \c Transport class to
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/// transport \c ArrayHandle objects for input data.
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///
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struct TransportTagArrayIn
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{
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};
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template <typename ContObjectType, typename Device>
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struct Transport<vtkm::cont::arg::TransportTagArrayIn, ContObjectType, Device>
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{
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VTKM_IS_ARRAY_HANDLE(ContObjectType);
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using ExecObjectType = decltype(std::declval<ContObjectType>().PrepareForInput(Device()));
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template <typename InputDomainType>
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VTKM_CONT ExecObjectType operator()(const ContObjectType& object,
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const InputDomainType& vtkmNotUsed(inputDomain),
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vtkm::Id inputRange,
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vtkm::Id vtkmNotUsed(outputRange)) const
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{
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if (object.GetNumberOfValues() != inputRange)
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{
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throw vtkm::cont::ErrorBadValue("Input array to worklet invocation the wrong size.");
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}
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return object.PrepareForInput(Device());
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}
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};
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}
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}
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} // namespace vtkm::cont::arg
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#endif //vtk_m_cont_arg_TransportTagArrayIn_h
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