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pt-check.h

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/*

Copyright (C) 1996, 1997, 2000, 2002, 2003, 2004, 2005, 2006, 2007,
              2008, 2009 John W. Eaton

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
<http://www.gnu.org/licenses/>.

*/

#if !defined (octave_tree_checker_h)
#define octave_tree_checker_h 1

#include "pt-walk.h"

class tree_decl_command;

// How to check the semantics of the code that the parse trees represent.

class
tree_checker : public tree_walker
{
public:

  tree_checker (void)
    : do_lvalue_check (false) { }

  ~tree_checker (void) { }

  void visit_argument_list (tree_argument_list&);

  void visit_binary_expression (tree_binary_expression&);

  void visit_break_command (tree_break_command&);

  void visit_colon_expression (tree_colon_expression&);

  void visit_continue_command(tree_continue_command&);

  void visit_global_command (tree_global_command&);

  void visit_static_command (tree_static_command&);

  void visit_decl_elt (tree_decl_elt&);

  void visit_decl_init_list (tree_decl_init_list&);

  void visit_simple_for_command (tree_simple_for_command&);

  void visit_complex_for_command (tree_complex_for_command&);

  void visit_octave_user_script (octave_user_script&);

  void visit_octave_user_function (octave_user_function&);

  void visit_function_def (tree_function_def&);

  void visit_identifier (tree_identifier&);

  void visit_if_clause (tree_if_clause&);

  void visit_if_command (tree_if_command&);

  void visit_if_command_list (tree_if_command_list&);

  void visit_index_expression (tree_index_expression&);

  void visit_matrix (tree_matrix&);

  void visit_cell (tree_cell&);

  void visit_multi_assignment (tree_multi_assignment&);

  void visit_no_op_command (tree_no_op_command&);

  void visit_anon_fcn_handle (tree_anon_fcn_handle&);

  void visit_constant (tree_constant&);

  void visit_fcn_handle (tree_fcn_handle&);

  void visit_parameter_list (tree_parameter_list&);

  void visit_postfix_expression (tree_postfix_expression&);

  void visit_prefix_expression (tree_prefix_expression&);

  void visit_return_command (tree_return_command&);

  void visit_return_list (tree_return_list&);

  void visit_simple_assignment (tree_simple_assignment&);

  void visit_statement (tree_statement&);

  void visit_statement_list (tree_statement_list&);

  void visit_switch_case (tree_switch_case&);

  void visit_switch_case_list (tree_switch_case_list&);

  void visit_switch_command (tree_switch_command&);

  void visit_try_catch_command (tree_try_catch_command&);

  void visit_unwind_protect_command (tree_unwind_protect_command&);

  void visit_while_command (tree_while_command&);

  void visit_do_until_command (tree_do_until_command&);

private:

  bool do_lvalue_check;

  void do_decl_command (tree_decl_command&);

  void gripe (const std::string& msg, int line);

  // No copying!

  tree_checker (const tree_checker&);

  tree_checker& operator = (const tree_checker&);
};

#endif

/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/