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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
// Funded by CEA, DAM, DIF, F-91297 Arpajon, France
#ifndef vtkStdFunctionArray_h
#define vtkStdFunctionArray_h
#ifdef VTK_STD_FUNCTION_ARRAY_INSTANTIATING
#define VTK_IMPLICIT_VALUERANGE_INSTANTIATING
#include "vtkDataArrayPrivate.txx"
#endif
#include "vtkCommonCoreModule.h" // for export macro
#include "vtkImplicitArray.h"
#ifdef VTK_STD_FUNCTION_ARRAY_INSTANTIATING
#undef VTK_IMPLICIT_VALUERANGE_INSTANTIATING
#endif
#include <functional>
/**
* \var vtkStdFunctionArray
* \brief A utility alias for wrapping std::function in implicit arrays
*
* The main goal behind this alias is to be able to offer some semi-flexible instantiations of
* implicit arrays that can work with the vtkArrayDispatch mechanisms.
*
* In order to be usefully included in the dispatchers, these arrays need to be instantiated at the
* vtk library compile time. As such, they need to be compilable without knowing the exact
* function/mapping to include in the backend. This is why std::function is used as the backend
* here.
*
* @sa
* vtkImplicitArray
*/
VTK_ABI_NAMESPACE_BEGIN
template <typename T>
using vtkStdFunctionArray = vtkImplicitArray<std::function<T(int)>>;
VTK_ABI_NAMESPACE_END
#endif // vtkStdFunctionArray_h
#ifdef VTK_STD_FUNCTION_ARRAY_INSTANTIATING
#define VTK_INSTANTIATE_STD_FUNCTION_ARRAY(ValueType) \
VTK_ABI_NAMESPACE_BEGIN \
template class VTKCOMMONCORE_EXPORT vtkImplicitArray<std::function<ValueType(int)>>; \
VTK_ABI_NAMESPACE_END \
namespace vtkDataArrayPrivate \
{ \
VTK_ABI_NAMESPACE_BEGIN \
VTK_INSTANTIATE_VALUERANGE_ARRAYTYPE(vtkImplicitArray<std::function<ValueType(int)>>, double) \
VTK_ABI_NAMESPACE_END \
}
#elif defined(VTK_USE_EXTERN_TEMPLATE)
#ifndef VTK_STD_FUNCTION_ARRAY_TEMPLATE_EXTERN
#define VTK_STD_FUNCTION_ARRAY_TEMPLATE_EXTERN
#ifdef _MSC_VER
#pragma warning(push)
// The following is needed when the vtkAffineArray is declared
// dllexport and is used from another class in vtkCommonCore
#pragma warning(disable : 4910) // extern and dllexport incompatible
#endif
VTK_ABI_NAMESPACE_BEGIN
vtkExternStdFunctionTemplateMacro(
extern template class VTKCOMMONCORE_EXPORT vtkImplicitArray, std::function, int);
#ifdef _MSC_VER
#pragma warning(pop)
#endif
VTK_ABI_NAMESPACE_END
#endif // VTK_STD_FUNCTION_ARRAY_TEMPLATE_EXTERN
// The following clause is only for MSVC 2008 and 2010
#elif defined(_MSC_VER) && !defined(VTK_BUILD_SHARED_LIBS)
#pragma warning(push)
// C4091: 'extern ' : ignored on left of 'int' when no variable is declared
#pragma warning(disable : 4091)
// Compiler-specific extension warning.
#pragma warning(disable : 4231)
// We need to disable warning 4910 and do an extern dllexport
// anyway. When deriving new arrays from an
// instantiation of this template the compiler does an explicit
// instantiation of the base class. From outside the vtkCommon
// library we block this using an extern dllimport instantiation.
// For classes inside vtkCommon we should be able to just do an
// extern instantiation, but VS 2008 complains about missing
// definitions. We cannot do an extern dllimport inside vtkCommon
// since the symbols are local to the dll. An extern dllexport
// seems to be the only way to convince VS 2008 to do the right
// thing, so we just disable the warning.
#pragma warning(disable : 4910) // extern and dllexport incompatible
// Use an "extern explicit instantiation" to give the class a DLL
// interface. This is a compiler-specific extension.
VTK_ABI_NAMESPACE_BEGIN
vtkInstantiateStdFunctionTemplateMacro(
extern template class VTKCOMMONCORE_EXPORT vtkImplicitArray, std::function, int);
#pragma warning(pop)
VTK_ABI_NAMESPACE_END
#endif
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