EmptyFixedDimTensor.cxx

// Copyright 2023, UChicago Argonne, LLC
// All Rights Reserved
// Software Name: NEML2 -- the New Engineering material Model Library, version 2
// By: Argonne National Laboratory
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#include "neml2/tensors/user_tensors/EmptyFixedDimTensor.h"
 
namespace neml2
{
#define EMPTYFIXEDDIMTENSOR_REGISTER(T) register_NEML2_object_alias(Empty##T, "Empty" #T)
FOR_ALL_FIXEDDIMTENSOR(EMPTYFIXEDDIMTENSOR_REGISTER);
 
template <typename T>
OptionSet
EmptyFixedDimTensor<T>::expected_options()
{
  // This is the only way of getting tensor type in a static method like this...
  // Trim 6 chars to remove 'neml2::'
  auto tensor_type = utils::demangle(typeid(T).name()).substr(7);
 
  OptionSet options = UserTensor::expected_options();
  options.doc() = "Construct an empty " + tensor_type +
                  " with given batch shape. Tensor values are **undefined** after construction.";
 
  options.set<TorchShape>("batch_shape") = {};
  options.set("batch_shape").doc() = "Batch shape";
 
  return options;
}
 
template <typename T>
EmptyFixedDimTensor<T>::EmptyFixedDimTensor(const OptionSet & options)
  : T(T::empty(options.get<TorchShape>("batch_shape"), default_tensor_options())),
    UserTensor(options)
{
}
 
#define EMPTYFIXEDDIMTENSOR_INSTANTIATE_FIXEDDIMTENSOR(T) template class EmptyFixedDimTensor<T>
FOR_ALL_FIXEDDIMTENSOR(EMPTYFIXEDDIMTENSOR_INSTANTIATE_FIXEDDIMTENSOR);
} // namespace neml2