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annotate libinterp/parse-tree/anon-fcn-validator.h @ 30564:796f54d4ddbf stable

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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 0a5b15007766
children e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2019-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if ! defined (octave_anon_fcn_validator_h)
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27 #define octave_anon_fcn_validator_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <string>
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32
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33 #include "pt-walk.h"
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34
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35 namespace octave
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36 {
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37 class tree_expression;
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38 class tree_parameter_list;
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39
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40 // How to check the semantics of the code that the parse trees represent.
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41
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42 class anon_fcn_validator : public tree_walker
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43 {
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44 public:
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45
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46 anon_fcn_validator (tree_parameter_list *, tree_expression *expr);
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47
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48 // No copying!
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49
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50 anon_fcn_validator (const anon_fcn_validator&) = delete;
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51
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52 anon_fcn_validator& operator = (const anon_fcn_validator&) = delete;
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53
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54 ~anon_fcn_validator (void) = default;
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55
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56 void visit_postfix_expression (tree_postfix_expression&);
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57
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58 void visit_prefix_expression (tree_prefix_expression&);
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59
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60 void visit_multi_assignment (tree_multi_assignment&);
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61
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62 void visit_simple_assignment (tree_simple_assignment&);
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63
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64 bool ok (void) const { return m_ok; }
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65
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66 int line (void) const { return m_line; }
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67 int column (void) const { return m_column; }
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68
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69 std::string message (void) const { return m_message; }
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70
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71 private:
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72
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73 bool m_ok;
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74 int m_line;
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75 int m_column;
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76 std::string m_message;
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77
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78 void error (tree_expression& expr);
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79 };
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80 }
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81
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82 #endif