NEML2Object.h

// Copyright 2023, UChicago Argonne, LLC
// All Rights Reserved
// Software Name: NEML2 -- the New Engineering material Model Library, version 2
// By: Argonne National Laboratory
// OPEN SOURCE LICENSE (MIT)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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#pragma once
 
#include <torch/torch.h>
#include "neml2/base/OptionSet.h"
 
namespace neml2
{
class NEML2Object
{
public:
  static OptionSet expected_options();
 
  NEML2Object(const OptionSet & options);
 
  virtual ~NEML2Object() = default;
 
  const OptionSet & input_options() const { return _input_options; }
 
  virtual void setup() {}
 
  const std::string & name() const { return _input_options.name(); }
  const std::string & type() const { return _input_options.type(); }
  const std::string & path() const { return _input_options.path(); }
  const std::string & doc() const { return _input_options.doc(); }
 
  template <typename T = NEML2Object>
  const T * host() const;
 
  template <typename T = NEML2Object>
  T * host();
 
private:
  const OptionSet _input_options;
 
  NEML2Object * _host;
};
 
template <typename T>
const T *
NEML2Object::host() const
{
  auto host_ptr = dynamic_cast<const T *>(_host ? _host : this);
  neml_assert(host_ptr, "Internal error: Failed to retrieve host of object ", name());
  return host_ptr;
}
 
template <typename T>
T *
NEML2Object::host()
{
  auto host_ptr = dynamic_cast<T *>(_host ? _host : this);
  neml_assert(host_ptr, "Internal error: Failed to retrieve host of object ", name());
  return host_ptr;
}
} // namespace neml2