pt-args-block.h

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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2021-2023 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Octave is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Octave; see the file COPYING.  If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////
 
#if ! defined (octave_pt_args_block_h)
#define octave_pt_args_block_h 1
 
#include "octave-config.h"
 
#include "pt-arg-list.h"
#include "pt-cmd.h"
#include "pt-exp.h"
#include "pt-id.h"
#include "pt-walk.h"
 
#include "base-list.h"
 
// FIXME: We could maybe re-think the naming of some of these objects
// before releasing a version that contains these new classes...
 
OCTAVE_BEGIN_NAMESPACE(octave)
 
class tree_arg_size_spec
{
public:
 
  tree_arg_size_spec (tree_argument_list *size_args)
    : m_size_args (size_args)
  { }
 
  // No copying!
 
  tree_arg_size_spec (const tree_arg_size_spec&) = delete;
 
  tree_arg_size_spec& operator = (const tree_arg_size_spec&) = delete;
 
  ~tree_arg_size_spec (void)
  {
    delete m_size_args;
  }
 
  tree_argument_list * size_args (void) { return m_size_args; }
 
  void accept (tree_walker& tw)
  {
    tw.visit_arg_size_spec (*this);
  }
 
private:
 
  tree_argument_list *m_size_args;
};
 
class tree_arg_validation_fcns
{
public:
 
  tree_arg_validation_fcns (tree_argument_list *fcn_args)
    : m_fcn_args (fcn_args)
  { }
 
  // No copying!
 
  tree_arg_validation_fcns (const tree_arg_validation_fcns&) = delete;
 
  tree_arg_validation_fcns& operator = (const tree_arg_validation_fcns&) = delete;
 
  ~tree_arg_validation_fcns (void)
  {
    delete m_fcn_args;
  }
 
  tree_argument_list * fcn_args (void) { return m_fcn_args; }
 
  void accept (tree_walker& tw)
  {
    tw.visit_arg_validation_fcns (*this);
  }
 
private:
 
  tree_argument_list *m_fcn_args;
};
 
class tree_arg_validation
{
public:
 
  tree_arg_validation (tree_arg_size_spec *size_spec,
                       tree_identifier *class_name,
                       tree_arg_validation_fcns *validation_fcns,
                       tree_expression *default_value)
    : m_arg_name (nullptr), m_size_spec (size_spec),
      m_class_name (class_name), m_validation_fcns (validation_fcns),
      m_default_value (default_value)
  { }
 
  // No copying!
 
  tree_arg_validation (const tree_arg_validation&) = delete;
 
  tree_arg_validation& operator = (const tree_arg_validation&) = delete;
 
  ~tree_arg_validation (void)
  {
    delete m_arg_name;
    delete m_size_spec;
    delete m_class_name;
    delete m_validation_fcns;
    delete m_default_value;
  }
 
  void arg_name (tree_expression *name)
  {
    m_arg_name = name;
  }
 
  tree_expression * identifier_expression (void) { return m_arg_name; }
 
  tree_arg_size_spec * size_spec (void) { return m_size_spec; }
 
  tree_identifier * class_name (void) { return m_class_name; }
 
  tree_arg_validation_fcns *
  validation_fcns (void) { return m_validation_fcns; }
 
  tree_expression *
  initializer_expression (void) { return m_default_value; }
 
  void accept (tree_walker& tw)
  {
    tw.visit_arg_validation (*this);
  }
 
private:
 
  // May be a simple identifier or an identifier followed by a single
  // field name.
  tree_expression *m_arg_name;
  tree_arg_size_spec *m_size_spec;
  tree_identifier *m_class_name;
  tree_arg_validation_fcns *m_validation_fcns;
  tree_expression *m_default_value;
};
 
class tree_args_block_validation_list
  : public base_list<tree_arg_validation *>
{
public:
 
  tree_args_block_validation_list (void) { }
 
  tree_args_block_validation_list (tree_arg_validation *a) { append (a); }
 
  tree_args_block_validation_list (const base_list<tree_arg_validation *>& a)
    : base_list<tree_arg_validation *> (a)
  { }
 
  // No copying!
 
  tree_args_block_validation_list (const tree_args_block_validation_list&) = delete;
 
  tree_args_block_validation_list& operator = (const tree_args_block_validation_list&) = delete;
 
  ~tree_args_block_validation_list (void);
 
  void accept (tree_walker& tw)
  {
    tw.visit_args_block_validation_list (*this);
  }
};
 
// FIXME: Maybe make this object an actual list even though we don't
// currently need it?
 
class tree_args_block_attribute_list
{
public:
 
  tree_args_block_attribute_list (tree_identifier *attr = nullptr)
    : m_attr (attr)
  { }
 
  // No copying!
 
  tree_args_block_attribute_list (const tree_args_block_attribute_list&) = delete;
 
  tree_args_block_attribute_list& operator = (const tree_args_block_attribute_list&) = delete;
 
  ~tree_args_block_attribute_list (void)
  {
    delete m_attr;
  }
 
  tree_identifier * attribute (void) { return m_attr; }
 
  void accept (tree_walker& tw)
  {
    tw.visit_args_block_attribute_list (*this);
  }
 
private:
 
  tree_identifier *m_attr;
};
 
// Arguments block.
 
class tree_arguments_block : public tree_command
{
public:
 
  tree_arguments_block (tree_args_block_attribute_list *attr_list,
                        tree_args_block_validation_list *validation_list,
                        int l = -1, int c = -1)
    : tree_command (l, c), m_attr_list (attr_list),
      m_validation_list (validation_list),
      m_lead_comm (nullptr), m_trail_comm (nullptr)
  { }
 
  // No copying!
 
  tree_arguments_block (const tree_arguments_block&) = delete;
 
  tree_arguments_block& operator = (const tree_arguments_block&) = delete;
 
  ~tree_arguments_block (void)
  {
    delete m_attr_list;
    delete m_validation_list;
 
    delete m_lead_comm;
    delete m_trail_comm;
  }
 
  tree_args_block_attribute_list * attribute_list (void)
  {
    return m_attr_list;
  }
 
  tree_args_block_validation_list * validation_list (void)
  {
    return m_validation_list;
  }
 
  comment_list * leading_comment (void) { return m_lead_comm; }
 
  comment_list * trailing_comment (void) { return m_trail_comm; }
 
  void accept (tree_walker& tw)
  {
    tw.visit_arguments_block (*this);
  }
 
private:
 
  tree_args_block_attribute_list *m_attr_list;
 
  tree_args_block_validation_list *m_validation_list;
 
  // Comment preceding ARGUMENTS token.
  comment_list *m_lead_comm;
 
  // Comment preceding ENDARGUMENTS token.
  comment_list *m_trail_comm;
};
 
OCTAVE_END_NAMESPACE(octave)
 
#endif