annotate libinterp/parse-tree/anon-fcn-validator.cc @ 27923:bd51beb6205e

update formatting of copyright notices * Use <https://octave.org/copyright/> instead of <https://octave.org/COPYRIGHT.html/>. * For consistency with other comments in the Octave sources, use C++-style comments for copyright blocks in C and C++ files. * Use delimiters above and below copyright blocks that are appropriate for the language used in the file. * Eliminate extra spacing inside copyright blocks. * lex.ll (looks_like_copyright): Also allow newlines and carriage returns before the word "Copyright". * scripts/mk-doc.pl (gethelp): Also skip empty comment lines. * bp-table.cc, type.m: Adjust tests.
author John W. Eaton <jwe@octave.org>
date Wed, 08 Jan 2020 11:59:41 -0500
parents 1891570abac8
children 0a5b15007766
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2019-2020 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 ////////////////////////////////////////////////////////////////////////
27728
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include <string>
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31
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32 #include "anon-fcn-validator.h"
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33 #include "ov.h"
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34 #include "pt-all.h"
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35
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36 namespace octave
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37 {
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38 anon_fcn_validator::anon_fcn_validator (tree_parameter_list *,
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39 tree_expression *expr)
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40 : m_ok (true), m_line (-1), m_column (-1), m_message ()
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41 {
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42 expr->accept (*this);
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43 }
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44
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45 void anon_fcn_validator::visit_postfix_expression (tree_postfix_expression& expr)
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46 {
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47 octave_value::unary_op op = expr.op_type ();
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48
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49 if (op == octave_value::op_incr || op == octave_value::op_decr)
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50 error (expr);
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51 else
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52 tree_walker::visit_postfix_expression (expr);
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53 }
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54
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55 void anon_fcn_validator::visit_prefix_expression (tree_prefix_expression& expr)
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56 {
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57 octave_value::unary_op op = expr.op_type ();
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58
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59 if (op == octave_value::op_incr || op == octave_value::op_decr)
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60 error (expr);
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61 else
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62 tree_walker::visit_prefix_expression (expr);
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63 }
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64
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65 void anon_fcn_validator::visit_multi_assignment (tree_multi_assignment& expr)
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66 {
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67 error (expr);
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68 }
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69
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70 void anon_fcn_validator::visit_simple_assignment (tree_simple_assignment& expr)
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71 {
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72 error (expr);
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73 }
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74
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75 void anon_fcn_validator::error (tree_expression& expr)
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76 {
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77 m_ok = false;
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78 m_line = expr.line ();
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79 m_column = expr.column ();
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80 m_message
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81 = "invalid use of operator " + expr.oper () + " in anonymous function";
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82 }
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83 }