LabeledAxis.h

// Copyright 2024, 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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#pragma once
 
#include <map>
 
#include "neml2/misc/types.h"
#include "neml2/base/LabeledAxisAccessor.h"
#include "neml2/tensors/indexing.h"
 
namespace neml2
{
class LabeledAxis;

class LabeledAxis
{
public:
  LabeledAxis() = default;

  LabeledAxis(LabeledAxisAccessor prefix);

  void clear();

  bool is_setup() const { return _setup; }

  LabeledAxisAccessor qualify(const LabeledAxisAccessor & accessor) const;

  LabeledAxisAccessor disqualify(const LabeledAxisAccessor & accessor) const;

  LabeledAxis & add_subaxis(const std::string & name);

  void add_variable(const LabeledAxisAccessor & name,
                    TensorShapeRef intmd_sizes,
                    TensorShapeRef base_sizes);

  void setup_layout();

  Size size() const;

  Size size(const LabeledAxisAccessor & name) const;

  indexing::Slice slice(const LabeledAxisAccessor & name) const;

  std::size_t nvariable() const;
  bool has_variable(const LabeledAxisAccessor & name) const;
  std::size_t variable_id(const LabeledAxisAccessor & name) const;
  std::vector<LabeledAxisAccessor> variable_names_unsrt() const;
  const std::vector<LabeledAxisAccessor> & variable_names() const;
  const std::vector<std::pair<Size, Size>> & variable_slices() const;
  const std::pair<Size, Size> & variable_slice(const LabeledAxisAccessor & name) const;
  const std::vector<Size> & variable_sizes() const;
  Size variable_size(const LabeledAxisAccessor & name) const;
  const std::vector<TensorShape> & variable_intmd_sizes() const;
  const std::vector<TensorShape> & variable_base_sizes() const;

  std::size_t nsubaxis() const;
  bool has_subaxis(const LabeledAxisAccessor & name) const;
  std::size_t subaxis_id(const std::string & name) const;
  const std::vector<const LabeledAxis *> & subaxes() const;
  const LabeledAxis & subaxis(const LabeledAxisAccessor & name) const;
  LabeledAxis & subaxis(const LabeledAxisAccessor & name);
  std::vector<std::string> subaxis_names_unsrt() const;
  const std::vector<std::string> & subaxis_names() const;
  const std::vector<std::pair<Size, Size>> & subaxis_slices() const;
  std::pair<Size, Size> subaxis_slice(const LabeledAxisAccessor & name) const;
  const std::vector<Size> & subaxis_sizes() const;
  Size subaxis_size(const LabeledAxisAccessor & name) const;

  bool equals(const LabeledAxis & other) const;
 
  friend std::ostream & operator<<(std::ostream & os, const LabeledAxis & axis);
 
private:
  void clear_data();

  void ensure_setup_dbg() const;

  bool _setup = false;

  const LabeledAxisAccessor _prefix = {};

  Size _size = 0;

  std::map<std::string, std::pair<TensorShape, TensorShape>> _variables;

  std::map<std::string, std::shared_ptr<LabeledAxis>> _subaxes;

  std::map<LabeledAxisAccessor, std::size_t> _variable_to_id_map;
  std::vector<LabeledAxisAccessor> _id_to_variable_map;
  std::vector<Size> _id_to_variable_size_map;
  std::vector<std::pair<Size, Size>> _id_to_variable_slice_map;
  std::vector<TensorShape> _id_to_intmd_sizes_map;
  std::vector<TensorShape> _id_to_base_sizes_map;

  std::vector<const LabeledAxis *> _sorted_subaxes;
  std::map<std::string, std::size_t> _subaxis_to_id_map;
  std::vector<std::string> _id_to_subaxis_map;
  std::vector<Size> _id_to_subaxis_size_map;
  std::vector<std::pair<Size, Size>> _id_to_subaxis_slice_map;
};
 
std::ostream & operator<<(std::ostream & os, const LabeledAxis & axis);
 
bool operator==(const LabeledAxis & a, const LabeledAxis & b);
 
bool operator!=(const LabeledAxis & a, const LabeledAxis & b);
} // namespace neml2