1ec4e5d62c
Added features with reporting types with `UnknownArrayHandle`. First, added a method named `GetArrayTypeName` that returns a string containing the type of the contained array. There were already methods `GetValueType` and `GetStorageType`, but this provides a convenience to get the whole name in one go. Also improved the reporting when an `AsArrayHandle` call failed. Before, the thrown method just reported that the `UnknownArrayHandle` could not be converted to the given type. Now, it also reports the type actually held by the `UnknownArrayHandle` so the user can better understand why the conversion failed.
553 lines
19 KiB
C++
553 lines
19 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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//
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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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#include <vtkm/Deprecated.h>
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// This is testing a deprecated functionality. Remove this test once VariantArrayHandle
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// is completely removed from VTK-m.
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VTKM_DEPRECATED_SUPPRESS_BEGIN
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#include <vtkm/cont/VariantArrayHandle.h>
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#include <vtkm/TypeTraits.h>
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#include <vtkm/cont/ArrayHandleCast.h>
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#include <vtkm/cont/ArrayHandleCompositeVector.h>
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#include <vtkm/cont/ArrayHandleConstant.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/ArrayHandleGroupVec.h>
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#include <vtkm/cont/ArrayHandleImplicit.h>
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#include <vtkm/cont/ArrayHandleIndex.h>
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#include <vtkm/cont/ArrayHandlePermutation.h>
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#include <vtkm/cont/ArrayHandleTransform.h>
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#include <vtkm/cont/ArrayHandleUniformPointCoordinates.h>
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#include <vtkm/cont/ArrayHandleZip.h>
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#ifndef VTKM_NO_DEPRECATED_VIRTUAL
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#include <vtkm/cont/ArrayHandleVirtual.h>
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#endif
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#include <vtkm/cont/internal/IteratorFromArrayPortal.h>
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#include <vtkm/cont/testing/Testing.h>
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#include <sstream>
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#include <string>
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#include <type_traits>
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#include <typeinfo>
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namespace
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{
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// Make an "unusual" type to use in the test. This is simply a type that
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// is sure not to be declared elsewhere.
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struct UnusualType
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{
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using T = vtkm::Id;
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T X;
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UnusualType() = default;
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UnusualType(T x)
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: X(x)
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{
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}
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UnusualType& operator=(T x)
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{
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this->X = x;
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return *this;
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}
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operator T() const { return this->X; }
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};
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} // anonymous namespace
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namespace vtkm
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{
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// VariantArrayHandle requires its value type to have a defined VecTraits
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// class. One of the tests is to use an "unusual" array.
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// Make an implementation here. Because I am lazy, this is only a partial
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// implementation.
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template <>
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struct VecTraits<UnusualType> : VecTraits<UnusualType::T>
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{
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using ComponentType = UnusualType;
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using BaseComponentType = UnusualType;
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};
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} // namespace vtkm
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namespace
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{
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const vtkm::Id ARRAY_SIZE = 10;
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template <typename T>
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struct TestValueFunctor
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{
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T operator()(vtkm::Id index) const { return TestValue(index, T()); }
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};
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struct CheckFunctor
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{
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template <typename T, typename S>
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static void CheckArray(const vtkm::cont::ArrayHandle<T, S>& array)
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{
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VTKM_TEST_ASSERT(array.GetNumberOfValues() == ARRAY_SIZE, "Unexpected array size.");
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CheckPortal(array.ReadPortal());
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}
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template <typename S>
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static void CheckArray(const vtkm::cont::ArrayHandle<UnusualType, S>& array)
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{
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VTKM_TEST_ASSERT(array.GetNumberOfValues() == ARRAY_SIZE, "Unexpected array size.");
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auto portal = array.ReadPortal();
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for (vtkm::Id index = 0; index < array.GetNumberOfValues(); ++index)
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{
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VTKM_TEST_ASSERT(portal.Get(index) == TestValue(index, UnusualType::T{}));
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}
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}
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template <typename T>
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void operator()(const vtkm::cont::ArrayHandle<T>& array,
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bool& calledBasic,
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bool& vtkmNotUsed(calledVirtual)) const
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{
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calledBasic = true;
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std::cout << " Checking for basic array type: " << typeid(T).name() << std::endl;
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CheckArray(array);
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}
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#ifndef VTKM_NO_DEPRECATED_VIRTUAL
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template <typename T>
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void operator()(const vtkm::cont::ArrayHandleVirtual<T>& array,
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bool& vtkmNotUsed(calledBasic),
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bool& calledVirtual) const
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{
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calledVirtual = true;
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std::cout << " Checking for virtual array type: " << typeid(T).name() << std::endl;
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CheckArray(array);
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}
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#endif //VTKM_NO_DEPRECATED_VIRTUAL
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template <typename T, typename S>
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void operator()(const vtkm::cont::ArrayHandle<T, S>&, bool&, bool&) const
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{
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VTKM_TEST_FAIL("Array resolved to unexpected type.");
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}
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};
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template <typename TypeList>
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void BasicArrayVariantChecks(const vtkm::cont::VariantArrayHandleBase<TypeList>& array,
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vtkm::IdComponent numComponents)
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{
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VTKM_TEST_ASSERT(array.GetNumberOfValues() == ARRAY_SIZE,
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"Dynamic array reports unexpected size.");
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std::cout << "array.GetNumberOfComponents() = " << array.GetNumberOfComponentsFlat() << ", "
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<< "numComponents = " << numComponents << "\n";
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VTKM_TEST_ASSERT(array.GetNumberOfComponentsFlat() == numComponents,
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"Dynamic array reports unexpected number of components.");
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}
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template <typename TypeList>
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void CheckArrayVariant(const vtkm::cont::VariantArrayHandleBase<TypeList>& array,
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vtkm::IdComponent numComponents,
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bool isBasicArray)
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{
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BasicArrayVariantChecks(array, numComponents);
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std::cout << " CastAndCall with default storage" << std::endl;
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bool calledBasic = false;
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bool calledVirtual = false;
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CastAndCall(array, CheckFunctor(), calledBasic, calledVirtual);
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VTKM_TEST_ASSERT(
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calledBasic || calledVirtual,
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"The functor was never called (and apparently a bad value exception not thrown).");
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if (isBasicArray)
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{
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VTKM_TEST_ASSERT(calledBasic, "The functor was never called with the basic array fast path");
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VTKM_TEST_ASSERT(!calledVirtual, "The functor was somehow called with the virtual path");
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}
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else
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{
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VTKM_TEST_ASSERT(!calledBasic, "The array somehow got cast to a basic storage.");
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}
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// Work around apparent bug in some versions of GCC that give a warning about
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// StorageVirtualImpl<>::GetNumberOfValues() being "declared 'static' but never defined"
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// (even though nothing about this method is declared static). See the following
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// stackoverflow discussion for more details:
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//
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// https://stackoverflow.com/questions/56615695/how-to-fix-declared-static-but-never-defined-on-member-function
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#if !defined(VTKM_GCC) || (__GNUC__ >= 9)
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std::cout << " CastAndCall with extra storage" << std::endl;
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calledBasic = false;
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calledVirtual = false;
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array.CastAndCall(vtkm::List<vtkm::cont::StorageTagBasic, vtkm::cont::StorageTagConstant>{},
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CheckFunctor(),
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calledBasic,
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calledVirtual);
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VTKM_TEST_ASSERT(
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calledBasic || calledVirtual,
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"The functor was never called (and apparently a bad value exception not thrown).");
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if (isBasicArray)
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{
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VTKM_TEST_ASSERT(calledBasic, "The functor was never called with the basic array fast path");
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VTKM_TEST_ASSERT(!calledVirtual, "The functor was somehow called with the virtual path");
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}
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else
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{
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VTKM_TEST_ASSERT(!calledBasic, "The array somehow got cast to a basic storage.");
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}
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#endif
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}
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template <typename T>
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vtkm::cont::VariantArrayHandle CreateArrayVariant(T)
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{
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vtkm::cont::ArrayHandle<T> array;
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array.Allocate(ARRAY_SIZE);
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SetPortal(array.WritePortal());
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return vtkm::cont::VariantArrayHandle(array);
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}
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vtkm::cont::VariantArrayHandle CreateArrayVariant(UnusualType)
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{
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vtkm::cont::ArrayHandle<UnusualType> array;
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array.Allocate(ARRAY_SIZE);
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auto portal = array.WritePortal();
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for (vtkm::Id index = 0; index < ARRAY_SIZE; ++index)
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{
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portal.Set(index, TestValue(index, UnusualType::T{}));
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}
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return vtkm::cont::VariantArrayHandle(array);
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}
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template <typename ArrayHandleType>
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void CheckCastToArrayHandle(const ArrayHandleType& array)
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{
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VTKM_IS_ARRAY_HANDLE(ArrayHandleType);
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vtkm::cont::VariantArrayHandle arrayVariant = array;
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VTKM_TEST_ASSERT(!arrayVariant.IsType<vtkm::cont::ArrayHandle<UnusualType>>(),
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"Dynamic array reporting is wrong type.");
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ArrayHandleType castArray1;
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arrayVariant.CopyTo(castArray1);
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VTKM_TEST_ASSERT(arrayVariant.CanConvert<ArrayHandleType>(), "Did not query handle correctly.");
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//VTKM_TEST_ASSERT(array == castArray1, "Did not get back same array.");
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auto result = test_equal_ArrayHandles(array, castArray1);
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VTKM_TEST_ASSERT(result, result.GetMergedMessage());
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ArrayHandleType castArray2 = arrayVariant.Cast<ArrayHandleType>();
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//VTKM_TEST_ASSERT(array == castArray2, "Did not get back same array.");
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VTKM_TEST_ASSERT(test_equal_ArrayHandles(array, castArray2));
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}
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// A vtkm::Vec if NumComps > 1, otherwise a scalar
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template <typename T, vtkm::IdComponent NumComps>
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using VecOrScalar = typename std::conditional<(NumComps > 1), vtkm::Vec<T, NumComps>, T>::type;
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#ifndef VTKM_NO_DEPRECATED_VIRTUAL
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template <typename ArrayType>
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void CheckCastToVirtualArrayHandle(const ArrayType& array)
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{
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VTKM_IS_ARRAY_HANDLE(ArrayType);
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using ValueType = typename ArrayType::ValueType;
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using VTraits = vtkm::VecTraits<ValueType>;
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using ComponentType = typename VTraits::ComponentType;
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static constexpr vtkm::IdComponent NumComps = VTraits::NUM_COMPONENTS;
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using Storage = typename ArrayType::StorageTag;
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using StorageList = vtkm::ListAppend<VTKM_DEFAULT_STORAGE_LIST, vtkm::List<Storage>>;
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using TypeList = vtkm::ListAppend<VTKM_DEFAULT_TYPE_LIST, vtkm::List<ValueType>>;
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using VariantArrayType = vtkm::cont::VariantArrayHandleBase<TypeList>;
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VariantArrayType arrayVariant = array;
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{
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auto testArray = arrayVariant.template AsVirtual<ValueType, StorageList>();
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VTKM_TEST_ASSERT(testArray.GetNumberOfValues() == array.GetNumberOfValues(),
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"Did not get back virtual array handle representation.");
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}
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{
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auto testArray =
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arrayVariant.template AsVirtual<VecOrScalar<vtkm::Int8, NumComps>, StorageList>();
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VTKM_TEST_ASSERT(testArray.GetNumberOfValues() == array.GetNumberOfValues(),
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"Did not get back virtual array handle representation.");
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}
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{
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auto testArray =
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arrayVariant.template AsVirtual<VecOrScalar<vtkm::Int64, NumComps>, StorageList>();
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VTKM_TEST_ASSERT(testArray.GetNumberOfValues() == array.GetNumberOfValues(),
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"Did not get back virtual array handle representation.");
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}
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{
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auto testArray =
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arrayVariant.template AsVirtual<VecOrScalar<vtkm::UInt64, NumComps>, StorageList>();
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VTKM_TEST_ASSERT(testArray.GetNumberOfValues() == array.GetNumberOfValues(),
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"Did not get back virtual array handle representation.");
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}
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{
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auto testArray =
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arrayVariant.template AsVirtual<VecOrScalar<vtkm::Float32, NumComps>, StorageList>();
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VTKM_TEST_ASSERT(testArray.GetNumberOfValues() == array.GetNumberOfValues(),
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"Did not get back virtual array handle representation.");
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}
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{
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auto testArray =
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arrayVariant.template AsVirtual<VecOrScalar<vtkm::Float64, NumComps>, StorageList>();
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VTKM_TEST_ASSERT(testArray.GetNumberOfValues() == array.GetNumberOfValues(),
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"Did not get back virtual array handle representation.");
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}
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bool threw = false;
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try
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{
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arrayVariant.template AsVirtual<vtkm::Vec<ComponentType, NumComps + 1>, StorageList>();
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}
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catch (vtkm::cont::ErrorBadType&)
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{
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// caught expected exception
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threw = true;
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}
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VTKM_TEST_ASSERT(threw,
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"Casting to different vector width did not throw expected "
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"ErrorBadType exception.");
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}
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#endif //VTKM_NO_DEPRECATED_VIRTUAL
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template <typename T, typename ArrayVariantType>
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void TryNewInstance(T, ArrayVariantType originalArray)
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{
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// This check should already have been performed by caller, but just in case.
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CheckArrayVariant(originalArray, vtkm::VecTraits<T>::NUM_COMPONENTS, true);
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std::cout << "Create new instance of array." << std::endl;
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ArrayVariantType newArray = originalArray.NewInstance();
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std::cout << "Get a static instance of the new array (which checks the type)." << std::endl;
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vtkm::cont::ArrayHandle<T> staticArray;
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newArray.CopyTo(staticArray);
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std::cout << "Fill the new array with invalid values and make sure the original" << std::endl
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<< "is uneffected." << std::endl;
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staticArray.Allocate(ARRAY_SIZE);
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for (vtkm::Id index = 0; index < ARRAY_SIZE; index++)
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{
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staticArray.WritePortal().Set(index, TestValue(index + 100, T()));
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}
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CheckArrayVariant(originalArray, vtkm::VecTraits<T>::NUM_COMPONENTS, true);
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std::cout << "Set the new static array to expected values and make sure the new" << std::endl
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<< "dynamic array points to the same new values." << std::endl;
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for (vtkm::Id index = 0; index < ARRAY_SIZE; index++)
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{
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staticArray.WritePortal().Set(index, TestValue(index, T()));
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}
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CheckArrayVariant(newArray, vtkm::VecTraits<T>::NUM_COMPONENTS, true);
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}
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template <typename T, typename ArrayVariantType>
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void TryAsMultiplexer(T, ArrayVariantType sourceArray)
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{
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auto originalArray = sourceArray.template Cast<vtkm::cont::ArrayHandle<T>>();
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{
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std::cout << "Get multiplex array through direct type." << std::endl;
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using MultiplexerType = vtkm::cont::ArrayHandleMultiplexer<vtkm::cont::ArrayHandle<T>,
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vtkm::cont::ArrayHandleConstant<T>>;
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MultiplexerType multiplexArray = sourceArray.template AsMultiplexer<MultiplexerType>();
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VTKM_TEST_ASSERT(multiplexArray.IsValid());
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VTKM_TEST_ASSERT(test_equal_portals(multiplexArray.ReadPortal(), originalArray.ReadPortal()));
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}
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{
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std::cout << "Get multiplex array through cast type." << std::endl;
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using CastT = typename vtkm::VecTraits<T>::template ReplaceBaseComponentType<vtkm::Float64>;
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using MultiplexerType = vtkm::cont::ArrayHandleMultiplexer<
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vtkm::cont::ArrayHandle<CastT>,
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vtkm::cont::ArrayHandleCast<CastT, vtkm::cont::ArrayHandle<T>>>;
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MultiplexerType multiplexArray = sourceArray.template AsMultiplexer<MultiplexerType>();
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VTKM_TEST_ASSERT(multiplexArray.IsValid());
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VTKM_TEST_ASSERT(test_equal_portals(multiplexArray.ReadPortal(), originalArray.ReadPortal()));
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}
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{
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std::cout << "Make sure multiplex array prefers direct array (1st arg)" << std::endl;
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using MultiplexerType = vtkm::cont::ArrayHandleMultiplexer<
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vtkm::cont::ArrayHandle<T>,
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vtkm::cont::ArrayHandleCast<T, vtkm::cont::ArrayHandle<T>>>;
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MultiplexerType multiplexArray = sourceArray.template AsMultiplexer<MultiplexerType>();
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VTKM_TEST_ASSERT(multiplexArray.IsValid());
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VTKM_TEST_ASSERT(multiplexArray.GetArrayHandleVariant().GetIndex() == 0);
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VTKM_TEST_ASSERT(test_equal_portals(multiplexArray.ReadPortal(), originalArray.ReadPortal()));
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}
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{
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std::cout << "Make sure multiplex array prefers direct array (2nd arg)" << std::endl;
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using MultiplexerType =
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vtkm::cont::ArrayHandleMultiplexer<vtkm::cont::ArrayHandleCast<T, vtkm::cont::ArrayHandle<T>>,
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vtkm::cont::ArrayHandle<T>>;
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MultiplexerType multiplexArray = sourceArray.template AsMultiplexer<MultiplexerType>();
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VTKM_TEST_ASSERT(multiplexArray.IsValid());
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VTKM_TEST_ASSERT(multiplexArray.GetArrayHandleVariant().GetIndex() == 1);
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VTKM_TEST_ASSERT(test_equal_portals(multiplexArray.ReadPortal(), originalArray.ReadPortal()));
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}
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}
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struct TryDefaultType
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{
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template <typename T>
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void operator()(T) const
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{
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vtkm::cont::VariantArrayHandle array = CreateArrayVariant(T());
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CheckArrayVariant(array, vtkm::VecTraits<T>::NUM_COMPONENTS, true);
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TryNewInstance(T(), array);
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TryAsMultiplexer(T(), array);
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}
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};
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struct TryBasicVTKmType
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{
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template <typename T>
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void operator()(T) const
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{
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vtkm::cont::VariantArrayHandle array = CreateArrayVariant(T());
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CheckArrayVariant(
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array.ResetTypes(vtkm::TypeListAll()), vtkm::VecTraits<T>::NUM_COMPONENTS, true);
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TryNewInstance(T(), array.ResetTypes(vtkm::TypeListAll()));
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}
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};
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void TryUnusualType()
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{
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// A string is an unlikely type to be declared elsewhere in VTK-m.
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vtkm::cont::VariantArrayHandle array = CreateArrayVariant(UnusualType{});
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try
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{
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CheckArrayVariant(array, 1, true);
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VTKM_TEST_FAIL("CastAndCall failed to error for unrecognized type.");
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}
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catch (vtkm::cont::ErrorBadType&)
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{
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std::cout << " Caught exception for unrecognized type." << std::endl;
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}
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CheckArrayVariant(array.ResetTypes(vtkm::List<UnusualType>()), 1, true);
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std::cout << " Found type when type list was reset." << std::endl;
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}
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template <typename ArrayHandleType>
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void TryCastToArrayHandle(const ArrayHandleType& array)
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{
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CheckCastToArrayHandle(array);
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#ifndef VTKM_NO_DEPRECATED_VIRTUAL
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CheckCastToVirtualArrayHandle(array);
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#endif
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}
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void TryCastToArrayHandle()
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{
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std::cout << " Normal array handle." << std::endl;
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vtkm::FloatDefault buffer[ARRAY_SIZE];
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for (vtkm::Id index = 0; index < ARRAY_SIZE; index++)
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{
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buffer[index] = TestValue(index, vtkm::FloatDefault());
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}
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|
vtkm::cont::ArrayHandle<vtkm::FloatDefault> array =
|
|
vtkm::cont::make_ArrayHandle(buffer, ARRAY_SIZE, vtkm::CopyFlag::On);
|
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TryCastToArrayHandle(array);
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|
|
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std::cout << " Cast array handle." << std::endl;
|
|
TryCastToArrayHandle(vtkm::cont::make_ArrayHandleCast<vtkm::Id>(array));
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|
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std::cout << " Composite vector array handle." << std::endl;
|
|
TryCastToArrayHandle(vtkm::cont::make_ArrayHandleCompositeVector(array, array));
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|
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std::cout << " Constant array handle." << std::endl;
|
|
TryCastToArrayHandle(vtkm::cont::make_ArrayHandleConstant(5, ARRAY_SIZE));
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|
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|
std::cout << " Counting array handle." << std::endl;
|
|
vtkm::cont::ArrayHandleCounting<vtkm::Id> countingArray(ARRAY_SIZE - 1, -1, ARRAY_SIZE);
|
|
TryCastToArrayHandle(countingArray);
|
|
|
|
std::cout << " Group vec array handle" << std::endl;
|
|
vtkm::cont::ArrayHandleGroupVec<vtkm::cont::ArrayHandle<vtkm::FloatDefault>, 2> groupVecArray(
|
|
array);
|
|
TryCastToArrayHandle(groupVecArray);
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|
|
|
std::cout << " Implicit array handle." << std::endl;
|
|
TryCastToArrayHandle(
|
|
vtkm::cont::make_ArrayHandleImplicit(TestValueFunctor<vtkm::FloatDefault>(), ARRAY_SIZE));
|
|
|
|
std::cout << " Index array handle." << std::endl;
|
|
TryCastToArrayHandle(vtkm::cont::ArrayHandleIndex(ARRAY_SIZE));
|
|
|
|
std::cout << " Permutation array handle." << std::endl;
|
|
TryCastToArrayHandle(vtkm::cont::make_ArrayHandlePermutation(countingArray, array));
|
|
|
|
std::cout << " Transform array handle." << std::endl;
|
|
TryCastToArrayHandle(
|
|
vtkm::cont::make_ArrayHandleTransform(countingArray, TestValueFunctor<vtkm::FloatDefault>()));
|
|
|
|
std::cout << " Uniform point coordinates array handle." << std::endl;
|
|
TryCastToArrayHandle(vtkm::cont::ArrayHandleUniformPointCoordinates(vtkm::Id3(ARRAY_SIZE)));
|
|
|
|
// std::cout << " Zip array handle." << std::endl;
|
|
// CheckCastToArrayHandle(vtkm::cont::make_ArrayHandleZip(countingArray, array));
|
|
}
|
|
|
|
void TestVariantArrayHandle()
|
|
{
|
|
std::cout << "Try common types with default type lists." << std::endl;
|
|
vtkm::testing::Testing::TryTypes(TryDefaultType{}, VTKM_DEFAULT_TYPE_LIST{});
|
|
|
|
std::cout << "Try exemplar VTK-m types." << std::endl;
|
|
vtkm::testing::Testing::TryTypes(TryBasicVTKmType());
|
|
|
|
std::cout << "Try unusual type." << std::endl;
|
|
TryUnusualType();
|
|
|
|
std::cout << "Try CastToArrayHandle" << std::endl;
|
|
TryCastToArrayHandle();
|
|
}
|
|
|
|
} // anonymous namespace
|
|
|
|
int UnitTestVariantArrayHandle(int argc, char* argv[])
|
|
{
|
|
return vtkm::cont::testing::Testing::Run(TestVariantArrayHandle, argc, argv);
|
|
}
|
|
|
|
// The MSVC compiler is sometimes complaining about use of deprecated VariantArrayHandle at the
|
|
// end of this file. This is the end of the translation unit, so just keep the suppression on.
|
|
//VTKM_DEPRECATED_SUPPRESS_END
|