annotate libinterp/octave-value/ov-usr-fcn.cc @ 20939:b17fda023ca6

maint: Use new C++ archetype in more files. Place input validation first in files. Move declaration of retval down in function to be closer to point of usage. Eliminate else clause after if () error. Use "return ovl()" where it makes sense. * find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, givens.cc, graphics.cc, help.cc, hess.cc, hex2num.cc, input.cc, kron.cc, load-path.cc, load-save.cc, lookup.cc, mappers.cc, matrix_type.cc, mgorth.cc, nproc.cc, ordschur.cc, pager.cc, pinv.cc, pr-output.cc, profiler.cc, psi.cc, quad.cc, rcond.cc, regexp.cc, schur.cc, sighandlers.cc, sparse.cc, str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc, symtab.cc, syscalls.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, urlwrite.cc, utils.cc, variables.cc, __delaunayn__.cc, __eigs__.cc, __glpk__.cc, __magick_read__.cc, __osmesa_print__.cc, __voronoi__.cc, amd.cc, audiodevinfo.cc, audioread.cc, chol.cc, colamd.cc, dmperm.cc, fftw.cc, qr.cc, symbfact.cc, symrcm.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc, ov-classdef.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-flt-re-mat.cc, ov-java.cc, ov-null-mat.cc, ov-oncleanup.cc, ov-re-mat.cc, ov-struct.cc, ov-typeinfo.cc, ov-usr-fcn.cc, ov.cc, octave.cc: Use new C++ archetype in more files.
author Rik <rik@octave.org>
date Fri, 18 Dec 2015 15:37:22 -0800
parents 4d3daf7e43f3
children 48b2ad5ee801
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1 /*
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2
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4197fc428c7d maint: Update copyright notices for 2015.
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3 Copyright (C) 1996-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include <sstream>
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28
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29 #include "str-vec.h"
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30
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31 #include <defaults.h>
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32 #include "Cell.h"
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33 #include "builtins.h"
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34 #include "defun.h"
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35 #include "error.h"
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36 #include "gripes.h"
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37 #include "input.h"
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38 #include "oct-obj.h"
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39 #include "ov-usr-fcn.h"
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40 #include "ov.h"
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41 #include "pager.h"
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42 #include "pt-eval.h"
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43 #include "pt-jit.h"
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44 #include "pt-jump.h"
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45 #include "pt-misc.h"
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46 #include "pt-pr-code.h"
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47 #include "pt-stmt.h"
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48 #include "pt-walk.h"
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49 #include "symtab.h"
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50 #include "toplev.h"
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51 #include "unwind-prot.h"
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52 #include "utils.h"
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53 #include "parse.h"
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54 #include "profiler.h"
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55 #include "variables.h"
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56 #include "ov-fcn-handle.h"
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57
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58 // Whether to optimize subsasgn method calls.
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59 static bool Voptimize_subsasgn_calls = true;
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60
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61 // The character to fill with when creating string arrays.
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62 extern char Vstring_fill_char; // see pt-mat.cc
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63
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64 std::map<std::string, octave_value>
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65 octave_user_code::subfunctions (void) const
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66 {
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67 return std::map<std::string, octave_value> ();
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68 }
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69
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70 // User defined scripts.
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71
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72
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73 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_user_script,
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74 "user-defined script",
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75 "user-defined script");
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76
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77 octave_user_script::octave_user_script (void)
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78 : octave_user_code (), cmd_list (0), file_name (),
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79 t_parsed (static_cast<time_t> (0)),
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80 t_checked (static_cast<time_t> (0)),
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81 call_depth (-1)
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82 { }
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83
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84 octave_user_script::octave_user_script (const std::string& fnm,
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85 const std::string& nm,
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86 tree_statement_list *cmds,
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87 const std::string& ds)
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88 : octave_user_code (nm, ds), cmd_list (cmds), file_name (fnm),
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89 t_parsed (static_cast<time_t> (0)),
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90 t_checked (static_cast<time_t> (0)),
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91 call_depth (-1)
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92 {
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93 if (cmd_list)
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94 cmd_list->mark_as_script_body ();
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95 }
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96
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97 octave_user_script::octave_user_script (const std::string& fnm,
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98 const std::string& nm,
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99 const std::string& ds)
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100 : octave_user_code (nm, ds), cmd_list (0), file_name (fnm),
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101 t_parsed (static_cast<time_t> (0)),
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102 t_checked (static_cast<time_t> (0)),
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103 call_depth (-1)
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104 { }
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105
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106 octave_user_script::~octave_user_script (void)
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107 {
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108 if (cmd_list)
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109 cmd_list->remove_all_breakpoints (file_name);
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110
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111 delete cmd_list;
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112 }
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113
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114 octave_value_list
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115 octave_user_script::subsref (const std::string&,
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116 const std::list<octave_value_list>&, int)
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117 {
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118 error ("invalid use of script %s in index expression", file_name.c_str ());
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119 }
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120
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121 octave_value_list
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122 octave_user_script::do_multi_index_op (int nargout,
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123 const octave_value_list& args)
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124 {
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125 octave_value_list retval;
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126
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127 unwind_protect frame;
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128
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129 if (args.length () == 0 && nargout == 0)
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130 {
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131 if (cmd_list)
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132 {
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133 frame.protect_var (call_depth);
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134 call_depth++;
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135
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136 if (call_depth < Vmax_recursion_depth)
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parents: 20501
diff changeset
137 {
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diff changeset
138 octave_call_stack::push (this);
7715
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diff changeset
139
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diff changeset
140 frame.add_fcn (octave_call_stack::pop);
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141
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diff changeset
142 frame.protect_var (tree_evaluator::statement_context);
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parents: 20501
diff changeset
143 tree_evaluator::statement_context = tree_evaluator::script;
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33783e94fb16 line number fixes and other evaluator tweaks
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parents: 8658
diff changeset
144
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diff changeset
145 BEGIN_PROFILER_BLOCK (octave_user_script)
19327
91cd85a75705 Reduce profiling overhead using inlining and templates.
Julien Bect <julien.bect@supelec.fr>
parents: 18699
diff changeset
146
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diff changeset
147 cmd_list->accept (*current_evaluator);
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Julien Bect <julien.bect@supelec.fr>
parents: 18699
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148
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149 END_PROFILER_BLOCK
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150
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diff changeset
151 if (tree_return_command::returning)
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152 tree_return_command::returning = 0;
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153
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diff changeset
154 if (tree_break_command::breaking)
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155 tree_break_command::breaking--;
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156 }
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157 else
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diff changeset
158 error ("max_recursion_depth exceeded");
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159 }
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160 }
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161 else
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diff changeset
162 error ("invalid call to script %s", file_name.c_str ());
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163
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164 return retval;
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165 }
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166
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167 void
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168 octave_user_script::accept (tree_walker& tw)
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169 {
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170 tw.visit_octave_user_script (*this);
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171 }
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172
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173 // User defined functions.
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174
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175
3219
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parents: 3178
diff changeset
176 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_user_function,
10315
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diff changeset
177 "user-defined function",
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diff changeset
178 "user-defined function");
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179
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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180 // Ugh. This really needs to be simplified (code/data?
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
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181 // extrinsic/intrinsic state?).
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182
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183 octave_user_function::octave_user_function
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184 (symbol_table::scope_id sid, tree_parameter_list *pl,
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diff changeset
185 tree_parameter_list *rl, tree_statement_list *cl)
7719
87eda1f8faaa octave_user_code: new base class for octave_user_script and octave_user_function
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diff changeset
186 : octave_user_code (std::string (), std::string ()),
2974
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187 param_list (pl), ret_list (rl), cmd_list (cl),
7336
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diff changeset
188 lead_comm (), trail_comm (), file_name (),
12783
ad9263d965dc First experimental profiler implementation with flat profile.
Daniel Kraft <d@domob.eu>
parents: 12546
diff changeset
189 location_line (0), location_column (0),
6323
ea65de49e18e [project @ 2007-02-17 02:51:02 by jwe]
jwe
parents: 6149
diff changeset
190 parent_name (), t_parsed (static_cast<time_t> (0)),
3255
4d33b1e56bff [project @ 1999-07-15 20:54:14 by jwe]
jwe
parents: 3239
diff changeset
191 t_checked (static_cast<time_t> (0)),
7752
40c428ea3408 initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents: 7736
diff changeset
192 system_fcn_file (false), call_depth (-1),
7589
90fb25a5a3fa minor cleanup in octave_user_function constructor
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parents: 7552
diff changeset
193 num_named_args (param_list ? param_list->length () : 0),
11461
2b8531a6a3c9 Change mentions of "nested function" to the less misleading "subfunction"
David Grundberg <individ@acc.umu.se>
parents: 11431
diff changeset
194 subfunction (false), inline_function (false),
14861
f7afecdd87ef maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents: 14573
diff changeset
195 anonymous_function (false), nested_function (false),
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5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
196 class_constructor (none), class_method (false),
14544
be18c9e359bf Nested function support (bug #35772)
Max Brister <max@2bass.com>
parents: 14366
diff changeset
197 parent_scope (-1), local_scope (sid),
10637
9cd5aa83fa62 implement 'local' parameter to pseudo-variables
Jaroslav Hajek <highegg@gmail.com>
parents: 10578
diff changeset
198 curr_unwind_protect_frame (0)
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diff changeset
199 #ifdef HAVE_LLVM
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200 , jit_info (0)
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diff changeset
201 #endif
7736
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202 {
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diff changeset
203 if (cmd_list)
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diff changeset
204 cmd_list->mark_as_function_body ();
9639
8d79f36ebdde store scope->function pointer
Jaroslav Hajek <highegg@gmail.com>
parents: 9529
diff changeset
205
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diff changeset
206 if (local_scope >= 0)
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diff changeset
207 symbol_table::set_curr_fcn (this, local_scope);
7736
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diff changeset
208 }
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209
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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diff changeset
210 octave_user_function::~octave_user_function (void)
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parents:
diff changeset
211 {
16530
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parents: 16442
diff changeset
212 if (cmd_list)
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diff changeset
213 cmd_list->remove_all_breakpoints (file_name);
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parents: 16442
diff changeset
214
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215 delete param_list;
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diff changeset
216 delete ret_list;
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jwe
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diff changeset
217 delete cmd_list;
3665
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diff changeset
218 delete lead_comm;
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diff changeset
219 delete trail_comm;
7336
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diff changeset
220
15337
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parents: 15236
diff changeset
221 #ifdef HAVE_LLVM
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parents: 15236
diff changeset
222 delete jit_info;
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
223 #endif
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
224
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
225 // FIXME: this is really playing with fire.
7336
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diff changeset
226 symbol_table::erase_scope (local_scope);
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diff changeset
227 }
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diff changeset
228
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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diff changeset
229 octave_user_function *
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diff changeset
230 octave_user_function::define_ret_list (tree_parameter_list *t)
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diff changeset
231 {
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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diff changeset
232 ret_list = t;
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diff changeset
233
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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diff changeset
234 return this;
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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parents:
diff changeset
235 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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diff changeset
236
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
237 void
4343
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jwe
parents: 4280
diff changeset
238 octave_user_function::stash_fcn_file_name (const std::string& nm)
2974
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jwe
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diff changeset
239 {
4343
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parents: 4280
diff changeset
240 file_name = nm;
2974
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parents:
diff changeset
241 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
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diff changeset
242
16627
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parents: 16605
diff changeset
243 // If there is no explicit end statement at the end of the function,
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parents: 16605
diff changeset
244 // relocate the no_op that was generated for the end of file condition
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parents: 16605
diff changeset
245 // to appear on the next line after the last statement in the file, or
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parents: 16605
diff changeset
246 // the next line after the function keyword if there are no statements.
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diff changeset
247 // More precisely, the new location should probably be on the next line
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parents: 16605
diff changeset
248 // after the end of the parameter list, but we aren't tracking that
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parents: 16605
diff changeset
249 // information (yet).
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
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parents: 16605
diff changeset
250
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
251 void
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diff changeset
252 octave_user_function::maybe_relocate_end_internal (void)
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diff changeset
253 {
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parents: 16605
diff changeset
254 if (cmd_list && ! cmd_list->empty ())
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parents: 16605
diff changeset
255 {
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parents: 16605
diff changeset
256 tree_statement *last_stmt = cmd_list->back ();
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parents: 16605
diff changeset
257
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
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parents: 16605
diff changeset
258 if (last_stmt && last_stmt->is_end_of_fcn_or_script ()
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parents: 16605
diff changeset
259 && last_stmt->is_end_of_file ())
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parents: 16605
diff changeset
260 {
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
261 tree_statement_list::reverse_iterator
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
262 next_to_last_elt = cmd_list->rbegin ();
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parents: 16605
diff changeset
263
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
264 next_to_last_elt++;
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
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parents: 16605
diff changeset
265
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
266 int new_eof_line;
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
267 int new_eof_col;
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parents: 16605
diff changeset
268
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
269 if (next_to_last_elt == cmd_list->rend ())
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parents: 16605
diff changeset
270 {
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
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parents: 16605
diff changeset
271 new_eof_line = beginning_line ();
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diff changeset
272 new_eof_col = beginning_column ();
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parents: 16605
diff changeset
273 }
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
274 else
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
275 {
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
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parents: 16605
diff changeset
276 tree_statement *next_to_last_stmt = *next_to_last_elt;
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parents: 16605
diff changeset
277
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
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parents: 16605
diff changeset
278 new_eof_line = next_to_last_stmt->line ();
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parents: 16605
diff changeset
279 new_eof_col = next_to_last_stmt->column ();
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
280 }
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
281
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parents: 16605
diff changeset
282 last_stmt->set_location (new_eof_line + 1, new_eof_col);
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parents: 16605
diff changeset
283 }
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
284 }
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
285 }
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
286
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
287 void
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
288 octave_user_function::maybe_relocate_end (void)
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parents: 16605
diff changeset
289 {
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parents: 16605
diff changeset
290 std::map<std::string, octave_value> fcns = subfunctions ();
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parents: 16605
diff changeset
291
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
292 if (! fcns.empty ())
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
293 {
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parents: 16605
diff changeset
294 for (std::map<std::string, octave_value>::iterator p = fcns.begin ();
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
295 p != fcns.end (); p++)
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
296 {
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parents: 16605
diff changeset
297 octave_user_function *f = (p->second).user_function_value ();
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parents: 16605
diff changeset
298
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
299 if (f)
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
300 f->maybe_relocate_end_internal ();
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parents: 16605
diff changeset
301 }
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
302 }
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
303
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
304 maybe_relocate_end_internal ();
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
305 }
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John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
306
12783
ad9263d965dc First experimental profiler implementation with flat profile.
Daniel Kraft <d@domob.eu>
parents: 12546
diff changeset
307 std::string
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Daniel Kraft <d@domob.eu>
parents: 12546
diff changeset
308 octave_user_function::profiler_name (void) const
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Daniel Kraft <d@domob.eu>
parents: 12546
diff changeset
309 {
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parents: 12546
diff changeset
310 std::ostringstream result;
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Daniel Kraft <d@domob.eu>
parents: 12546
diff changeset
311
18752
e70373a98ffe Change profile() to report method names of classes (bug #38480).
Rik <rik@octave.org>
parents: 18592
diff changeset
312 if (is_anonymous_function ())
12783
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parents: 12546
diff changeset
313 result << "anonymous@" << fcn_file_name ()
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parents: 12546
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314 << ":" << location_line << ":" << location_column;
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parents: 12546
diff changeset
315 else if (is_subfunction ())
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parents: 12546
diff changeset
316 result << parent_fcn_name () << ">" << name ();
18752
e70373a98ffe Change profile() to report method names of classes (bug #38480).
Rik <rik@octave.org>
parents: 18592
diff changeset
317 else if (is_class_method ())
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Rik <rik@octave.org>
parents: 18592
diff changeset
318 result << "@" << dispatch_class () << "/" << name ();
e70373a98ffe Change profile() to report method names of classes (bug #38480).
Rik <rik@octave.org>
parents: 18592
diff changeset
319 else if (is_class_constructor () || is_classdef_constructor ())
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Rik <rik@octave.org>
parents: 18592
diff changeset
320 result << "@" << name ();
e70373a98ffe Change profile() to report method names of classes (bug #38480).
Rik <rik@octave.org>
parents: 18592
diff changeset
321 else if (is_inline_function ())
e70373a98ffe Change profile() to report method names of classes (bug #38480).
Rik <rik@octave.org>
parents: 18592
diff changeset
322 result << "inline@" << fcn_file_name ()
e70373a98ffe Change profile() to report method names of classes (bug #38480).
Rik <rik@octave.org>
parents: 18592
diff changeset
323 << ":" << location_line << ":" << location_column;
12783
ad9263d965dc First experimental profiler implementation with flat profile.
Daniel Kraft <d@domob.eu>
parents: 12546
diff changeset
324 else
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parents: 12546
diff changeset
325 result << name ();
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diff changeset
326
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diff changeset
327 return result.str ();
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Daniel Kraft <d@domob.eu>
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diff changeset
328 }
ad9263d965dc First experimental profiler implementation with flat profile.
Daniel Kraft <d@domob.eu>
parents: 12546
diff changeset
329
2974
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parents:
diff changeset
330 void
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
331 octave_user_function::mark_as_system_fcn_file (void)
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
332 {
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
333 if (! file_name.empty ())
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
334 {
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
335 // We really should stash the whole path to the file we found,
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
336 // when we looked it up, to avoid possible race conditions...
5775
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jwe
parents: 5744
diff changeset
337 // FIXME
2974
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jwe
parents:
diff changeset
338 //
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
339 // We probably also don't need to get the library directory
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
340 // every time, but since this function is only called when the
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
341 // function file is parsed, it probably doesn't matter that
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
342 // much.
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
343
3523
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jwe
parents: 3489
diff changeset
344 std::string ff_name = fcn_file_in_path (file_name);
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
345
3565
4290f11c8d3b [project @ 2000-02-03 08:32:41 by jwe]
jwe
parents: 3544
diff changeset
346 if (Vfcn_file_dir == ff_name.substr (0, Vfcn_file_dir.length ()))
14866
2309812f428e Use explicit false and true instead of 0 and 1
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14861
diff changeset
347 system_fcn_file = true;
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
348 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
349 else
14866
2309812f428e Use explicit false and true instead of 0 and 1
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14861
diff changeset
350 system_fcn_file = false;
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
351 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
352
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
353 bool
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
354 octave_user_function::takes_varargs (void) const
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
355 {
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
356 return (param_list && param_list->takes_varargs ());
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
357 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
358
5848
415ae81d331b [project @ 2006-06-08 20:37:29 by jwe]
jwe
parents: 5823
diff changeset
359 bool
415ae81d331b [project @ 2006-06-08 20:37:29 by jwe]
jwe
parents: 5823
diff changeset
360 octave_user_function::takes_var_return (void) const
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
361 {
5848
415ae81d331b [project @ 2006-06-08 20:37:29 by jwe]
jwe
parents: 5823
diff changeset
362 return (ret_list && ret_list->takes_varargs ());
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
363 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
364
7761
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
365 void
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
366 octave_user_function::lock_subfunctions (void)
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
367 {
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
368 symbol_table::lock_subfunctions (local_scope);
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
369 }
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
370
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
371 void
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
372 octave_user_function::unlock_subfunctions (void)
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
373 {
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
374 symbol_table::unlock_subfunctions (local_scope);
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
375 }
5adeea5de26c symbol table reporting functions
John W. Eaton <jwe@octave.org>
parents: 7752
diff changeset
376
16596
645672f1c873 handle setting breakpoints in subfunctions in GUI editor
John W. Eaton <jwe@octave.org>
parents: 16530
diff changeset
377 std::map<std::string, octave_value>
645672f1c873 handle setting breakpoints in subfunctions in GUI editor
John W. Eaton <jwe@octave.org>
parents: 16530
diff changeset
378 octave_user_function::subfunctions (void) const
645672f1c873 handle setting breakpoints in subfunctions in GUI editor
John W. Eaton <jwe@octave.org>
parents: 16530
diff changeset
379 {
645672f1c873 handle setting breakpoints in subfunctions in GUI editor
John W. Eaton <jwe@octave.org>
parents: 16530
diff changeset
380 return symbol_table::subfunctions_defined_in_scope (local_scope);
645672f1c873 handle setting breakpoints in subfunctions in GUI editor
John W. Eaton <jwe@octave.org>
parents: 16530
diff changeset
381 }
645672f1c873 handle setting breakpoints in subfunctions in GUI editor
John W. Eaton <jwe@octave.org>
parents: 16530
diff changeset
382
16627
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
383 bool
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
384 octave_user_function::has_subfunctions (void) const
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
385 {
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
386 return ! subfcn_names.empty ();
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
387 }
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
388
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
389 void
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
390 octave_user_function::stash_subfunction_names
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
391 (const std::list<std::string>& names)
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
392 {
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
393 subfcn_names = names;
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
394 }
de91b1621260 adjust location of eof marker for files with subfunctions but no explicit end statements
John W. Eaton <jwe@octave.org>
parents: 16605
diff changeset
395
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
396 octave_value_list
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
397 octave_user_function::all_va_args (const octave_value_list& args)
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
398 {
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
399 octave_value_list retval;
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
400
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
401 octave_idx_type n = args.length () - num_named_args;
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
402
3178
09a3064a3a17 [project @ 1998-06-23 03:46:42 by jwe]
jwe
parents: 3165
diff changeset
403 if (n > 0)
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
404 retval = args.slice (num_named_args, n);
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
405
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
406 return retval;
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
407 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
408
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
409 octave_value_list
4247
fc9a075d10fb [project @ 2002-12-30 23:05:27 by jwe]
jwe
parents: 4245
diff changeset
410 octave_user_function::subsref (const std::string& type,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
411 const std::list<octave_value_list>& idx,
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
412 int nargout)
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
413 {
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
414 return octave_user_function::subsref (type, idx, nargout, 0);
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
415 }
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
416
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
417 octave_value_list
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
418 octave_user_function::subsref (const std::string& type,
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
419 const std::list<octave_value_list>& idx,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
420 int nargout,
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
421 const std::list<octave_lvalue>* lvalue_list)
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
422 {
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
423 octave_value_list retval;
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
424
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
425 switch (type[0])
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
426 {
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
427 case '(':
5154
9cb38bfb04ea [project @ 2005-02-21 21:23:28 by jwe]
jwe
parents: 5105
diff changeset
428 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
429 int tmp_nargout = (type.length () > 1 && nargout == 0) ? 1 : nargout;
5154
9cb38bfb04ea [project @ 2005-02-21 21:23:28 by jwe]
jwe
parents: 5105
diff changeset
430
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
431 retval = do_multi_index_op (tmp_nargout, idx.front (),
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
432 idx.size () == 1 ? lvalue_list : 0);
5154
9cb38bfb04ea [project @ 2005-02-21 21:23:28 by jwe]
jwe
parents: 5105
diff changeset
433 }
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
434 break;
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
435
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
436 case '{':
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
437 case '.':
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
438 {
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
439 std::string nm = type_name ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
440 error ("%s cannot be indexed with %c", nm.c_str (), type[0]);
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
441 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
442 break;
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
443
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
444 default:
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
445 panic_impossible ();
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
446 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
447
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
448 // FIXME: perhaps there should be an
4059
db58c1a1e6ce [project @ 2002-09-18 07:21:12 by jwe]
jwe
parents: 3975
diff changeset
449 // octave_value_list::next_subsref member function? See also
db58c1a1e6ce [project @ 2002-09-18 07:21:12 by jwe]
jwe
parents: 3975
diff changeset
450 // octave_builtin::subsref.
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
451
4219
23d06c9e1edd [project @ 2002-12-06 21:29:17 by jwe]
jwe
parents: 4207
diff changeset
452 if (idx.size () > 1)
4994
48d0defe9445 [project @ 2004-09-15 20:31:31 by jwe]
jwe
parents: 4987
diff changeset
453 retval = retval(0).next_subsref (nargout, type, idx);
4059
db58c1a1e6ce [project @ 2002-09-18 07:21:12 by jwe]
jwe
parents: 3975
diff changeset
454
db58c1a1e6ce [project @ 2002-09-18 07:21:12 by jwe]
jwe
parents: 3975
diff changeset
455 return retval;
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
456 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
457
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
458 octave_value_list
3544
71bd2d124119 [project @ 2000-02-02 21:02:31 by jwe]
jwe
parents: 3523
diff changeset
459 octave_user_function::do_multi_index_op (int nargout,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
460 const octave_value_list& args)
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
461 {
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
462 return do_multi_index_op (nargout, args, 0);
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
463 }
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
464
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
465 octave_value_list
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
466 octave_user_function::do_multi_index_op (int nargout,
15869
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
467 const octave_value_list& _args,
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
468 const std::list<octave_lvalue>* lvalue_list)
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
469 {
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
470 octave_value_list retval;
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
471
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
472 if (! cmd_list)
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
473 return retval;
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
474
15869
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
475 // If this function is a classdef constructor, extract the first input
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
476 // argument, which must be the partially constructed object instance.
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
477
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
478 octave_value_list args (_args);
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
479 octave_value_list ret_args;
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
480
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
481 if (is_classdef_constructor ())
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
482 {
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
483 if (args.length () > 0)
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
484 {
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
485 ret_args = args.slice (0, 1, true);
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
486 args = args.slice (1, args.length () - 1, true);
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
487 }
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
488 else
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
489 panic_impossible ();
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
490 }
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
491
15337
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
492 #ifdef HAVE_LLVM
15582
52df2e7baabe Disable JIT when breakpoints are present
Max Brister <max@2bass.com>
parents: 15427
diff changeset
493 if (is_special_expr ()
15337
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
494 && tree_jit::execute (*this, args, retval))
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
495 return retval;
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
496 #endif
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
497
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
498 unwind_protect frame;
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
499
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
500 frame.protect_var (call_depth);
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
501 call_depth++;
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
502
7752
40c428ea3408 initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents: 7736
diff changeset
503 if (call_depth >= Vmax_recursion_depth)
20893
384ff5aa9437 2015 Code Sprint: Eliminate useless return statements after error ().
Rik <rik@octave.org>
parents: 20853
diff changeset
504 error ("max_recursion_depth exceeded");
3131
9c5160c83bd2 [project @ 1998-01-29 04:46:33 by jwe]
jwe
parents: 3014
diff changeset
505
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
506 // Save old and set current symbol table context, for
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
507 // eval_undefined_error().
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
508
14544
be18c9e359bf Nested function support (bug #35772)
Max Brister <max@2bass.com>
parents: 14366
diff changeset
509 int context = active_context ();
14328
19078011cdc3 fix problem with recursion and anonymous functions (bug #31371)
John W. Eaton <jwe@octave.org>
parents: 14139
diff changeset
510
19078011cdc3 fix problem with recursion and anonymous functions (bug #31371)
John W. Eaton <jwe@octave.org>
parents: 14139
diff changeset
511 octave_call_stack::push (this, local_scope, context);
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
512 frame.add_fcn (octave_call_stack::pop);
7901
3e4c9b69069d call stack changes
John W. Eaton <jwe@octave.org>
parents: 7761
diff changeset
513
14328
19078011cdc3 fix problem with recursion and anonymous functions (bug #31371)
John W. Eaton <jwe@octave.org>
parents: 14139
diff changeset
514 if (call_depth > 0 && ! is_anonymous_function ())
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
515 {
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
516 symbol_table::push_context ();
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
517
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
518 frame.add_fcn (symbol_table::pop_context);
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
519 }
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
520
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
521 string_vector arg_names = args.name_tags ();
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
522
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
523 if (param_list && ! param_list->varargs_only ())
20557
b10432a40432 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20501
diff changeset
524 param_list->define_from_arg_vector (args);
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
525
15869
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
526 // For classdef constructor, pre-populate the output arguments
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
527 // with the pre-initialized object instance, extracted above.
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
528
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
529 if (is_classdef_constructor ())
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
530 {
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
531 if (ret_list)
20557
b10432a40432 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20501
diff changeset
532 ret_list->define_from_arg_vector (ret_args);
15869
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
533 else
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
534 {
20428
7ac907da9fba Use error() rather than ::error() unless explicitly required.
Rik <rik@octave.org>
parents: 20163
diff changeset
535 error ("%s: invalid classdef constructor, no output argument defined",
7ac907da9fba Use error() rather than ::error() unless explicitly required.
Rik <rik@octave.org>
parents: 20163
diff changeset
536 dispatch_class ().c_str ());
15869
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
537 return retval;
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
538 }
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
539 }
5e5705b3e505 Implement some embryonic handle-classdef semantic.
Michael Goffioul <michael.goffioul@gmail.com>
parents: 15582
diff changeset
540
3239
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
541 // Force parameter list to be undefined when this function exits.
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
542 // Doing so decrements the reference counts on the values of local
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
543 // variables that are also named function parameters.
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
544
9396
17af7cce7d1b yet more unwind_protect improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9377
diff changeset
545 if (param_list)
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
546 frame.add_method (param_list, &tree_parameter_list::undefine);
3239
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
547
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
548 // Force return list to be undefined when this function exits.
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
549 // Doing so decrements the reference counts on the values of local
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
550 // variables that are also named values returned by this function.
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
551
9396
17af7cce7d1b yet more unwind_protect improvements
Jaroslav Hajek <highegg@gmail.com>
parents: 9377
diff changeset
552 if (ret_list)
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
553 frame.add_method (ret_list, &tree_parameter_list::undefine);
3239
d54ef0aa6e82 [project @ 1999-03-27 17:40:45 by jwe]
jwe
parents: 3219
diff changeset
554
8142
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
555 if (call_depth == 0)
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
556 {
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
557 // Force symbols to be undefined again when this function
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
558 // exits.
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
559 //
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
560 // This cleanup function is added to the unwind_protect stack
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
561 // after the calls to clear the parameter lists so that local
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
562 // variables will be cleared before the parameter lists are
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
563 // cleared. That way, any function parameters that have been
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
564 // declared global will be unmarked as global before they are
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
565 // undefined by the clear_param_list cleanup function.
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
566
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
567 frame.add_fcn (symbol_table::clear_variables);
8142
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
568 }
54b41376e381 ov-usr-fcn.cc (octave_user_function::do_multi_index_op): add symbol_table::clear_variables cleanup function to the unwind_protect stack after the parameter list cleanup functions
John W. Eaton <jwe@octave.org>
parents: 8013
diff changeset
569
20818
cef0448a6ed2 eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents: 20797
diff changeset
570 bind_automatic_vars (arg_names, args.length (), nargout,
cef0448a6ed2 eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents: 20797
diff changeset
571 all_va_args (args), lvalue_list);
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
572
15427
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
573 frame.add_method (this, &octave_user_function::restore_warning_states);
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
574
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
575 bool echo_commands = (Vecho_executing_commands & ECHO_FUNCTIONS);
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
576
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
577 if (echo_commands)
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
578 print_code_function_header ();
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
579
10637
9cd5aa83fa62 implement 'local' parameter to pseudo-variables
Jaroslav Hajek <highegg@gmail.com>
parents: 10578
diff changeset
580 // Set pointer to the current unwind_protect frame to allow
9cd5aa83fa62 implement 'local' parameter to pseudo-variables
Jaroslav Hajek <highegg@gmail.com>
parents: 10578
diff changeset
581 // certain builtins register simple cleanup in a very optimized manner.
9cd5aa83fa62 implement 'local' parameter to pseudo-variables
Jaroslav Hajek <highegg@gmail.com>
parents: 10578
diff changeset
582 // This is *not* intended as a general-purpose on-cleanup mechanism,
9cd5aa83fa62 implement 'local' parameter to pseudo-variables
Jaroslav Hajek <highegg@gmail.com>
parents: 10578
diff changeset
583 frame.protect_var (curr_unwind_protect_frame);
9cd5aa83fa62 implement 'local' parameter to pseudo-variables
Jaroslav Hajek <highegg@gmail.com>
parents: 10578
diff changeset
584 curr_unwind_protect_frame = &frame;
9cd5aa83fa62 implement 'local' parameter to pseudo-variables
Jaroslav Hajek <highegg@gmail.com>
parents: 10578
diff changeset
585
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
586 // Evaluate the commands that make up the function.
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
587
11304
c9fefa096ce2 echo commands in scripts
John W. Eaton <jwe@octave.org>
parents: 10848
diff changeset
588 frame.protect_var (tree_evaluator::statement_context);
c9fefa096ce2 echo commands in scripts
John W. Eaton <jwe@octave.org>
parents: 10848
diff changeset
589 tree_evaluator::statement_context = tree_evaluator::function;
3489
cbee5fbb696d [project @ 2000-01-28 09:14:32 by jwe]
jwe
parents: 3445
diff changeset
590
19327
91cd85a75705 Reduce profiling overhead using inlining and templates.
Julien Bect <julien.bect@supelec.fr>
parents: 18699
diff changeset
591 BEGIN_PROFILER_BLOCK (octave_user_function)
6657
86354a8cd6a7 [project @ 2007-05-23 04:35:04 by jwe]
jwe
parents: 6591
diff changeset
592
15337
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
593 if (is_special_expr ())
12960
43d78e103984 Use macro to start profiler blocks.
Daniel Kraft <d@domob.eu>
parents: 12920
diff changeset
594 {
15337
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
595 tree_expression *expr = special_expr ();
8658
73c4516fae10 New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents: 8580
diff changeset
596
15337
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
597 if (expr)
16091
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
598 retval = (lvalue_list
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
599 ? expr->rvalue (nargout, lvalue_list)
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
600 : expr->rvalue (nargout));
12960
43d78e103984 Use macro to start profiler blocks.
Daniel Kraft <d@domob.eu>
parents: 12920
diff changeset
601 }
43d78e103984 Use macro to start profiler blocks.
Daniel Kraft <d@domob.eu>
parents: 12920
diff changeset
602 else
43d78e103984 Use macro to start profiler blocks.
Daniel Kraft <d@domob.eu>
parents: 12920
diff changeset
603 cmd_list->accept (*current_evaluator);
43d78e103984 Use macro to start profiler blocks.
Daniel Kraft <d@domob.eu>
parents: 12920
diff changeset
604
43d78e103984 Use macro to start profiler blocks.
Daniel Kraft <d@domob.eu>
parents: 12920
diff changeset
605 END_PROFILER_BLOCK
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
606
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
607 if (echo_commands)
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
608 print_code_function_trailer ();
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
609
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
610 if (tree_return_command::returning)
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
611 tree_return_command::returning = 0;
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
612
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
613 if (tree_break_command::breaking)
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
614 tree_break_command::breaking--;
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
615
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
616 // Copy return values out.
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
617
15337
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
618 if (ret_list && ! is_special_expr ())
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
619 {
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
620 ret_list->initialize_undefined_elements (my_name, nargout, Matrix ());
5848
415ae81d331b [project @ 2006-06-08 20:37:29 by jwe]
jwe
parents: 5823
diff changeset
621
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
622 Cell varargout;
6591
fc0218995ee7 [project @ 2007-04-27 02:17:34 by jwe]
jwe
parents: 6505
diff changeset
623
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
624 if (ret_list->takes_varargs ())
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
625 {
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
626 octave_value varargout_varval = symbol_table::varval ("varargout");
5848
415ae81d331b [project @ 2006-06-08 20:37:29 by jwe]
jwe
parents: 5823
diff changeset
627
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
628 if (varargout_varval.is_defined ())
20711
7b608fadc663 Make error messages more specific about the variable and problem encountered.
Rik <rik@octave.org>
parents: 20700
diff changeset
629 varargout = varargout_varval.xcell_value ("varargout must be a cell array object");
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
630 }
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
631
20557
b10432a40432 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20501
diff changeset
632 retval = ret_list->convert_to_const_vector (nargout, varargout);
10066
2cd940306a06 make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents: 10001
diff changeset
633 }
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
634
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
635 return retval;
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
636 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
637
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
638 void
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
639 octave_user_function::accept (tree_walker& tw)
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
640 {
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
641 tw.visit_octave_user_function (*this);
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
642 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
643
15337
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
644 tree_expression *
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
645 octave_user_function::special_expr (void)
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
646 {
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
647 assert (is_special_expr ());
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
648 assert (cmd_list->length () == 1);
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
649
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
650 tree_statement *stmt = cmd_list->front ();
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
651 return stmt->expression ();
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
652 }
3f43e9d6d86e JIT compile anonymous functions
Max Brister <max@2bass.com>
parents: 15236
diff changeset
653
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
654 bool
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
655 octave_user_function::subsasgn_optimization_ok (void)
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
656 {
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
657 bool retval = false;
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
658 if (Voptimize_subsasgn_calls
18699
e3fca7930c1e Fix segfault if subsasgn in @class returns no output (bug #41945)
Stefan Mahr <dac922@gmx.de>
parents: 18533
diff changeset
659 && param_list && ret_list
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
660 && param_list->length () > 0 && ! param_list->varargs_only ()
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
661 && ret_list->length () == 1 && ! ret_list->takes_varargs ())
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
662 {
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
663 tree_identifier *par1 = param_list->front ()->ident ();
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
664 tree_identifier *ret1 = ret_list->front ()->ident ();
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
665 retval = par1->name () == ret1->name ();
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
666 }
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
667
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
668 return retval;
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
669 }
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
670
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
671 #if 0
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
672 void
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
673 octave_user_function::print_symtab_info (std::ostream& os) const
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
674 {
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
675 symbol_table::print_info (os, local_scope);
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
676 }
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
677 #endif
3933
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
678
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe]
jwe
parents: 3876
diff changeset
679 void
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
680 octave_user_function::print_code_function_header (void)
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
681 {
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5775
diff changeset
682 tree_print_code tpc (octave_stdout, VPS4);
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
683
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
684 tpc.visit_octave_user_function_header (*this);
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
685 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
686
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
687 void
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
688 octave_user_function::print_code_function_trailer (void)
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
689 {
5794
1138ced03f14 [project @ 2006-05-08 20:23:04 by jwe]
jwe
parents: 5775
diff changeset
690 tree_print_code tpc (octave_stdout, VPS4);
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
691
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
692 tpc.visit_octave_user_function_trailer (*this);
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
693 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
694
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
695 void
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
696 octave_user_function::bind_automatic_vars
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3933
diff changeset
697 (const string_vector& arg_names, int nargin, int nargout,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
698 const octave_value_list& va_args,
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
699 const std::list<octave_lvalue> *lvalue_list)
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
700 {
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
701 if (! arg_names.empty ())
11557
e9d72a3caa46 mark automatic variables as automatic
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
702 {
11558
1e4dfc7a9487 use .argn. to store argument names for inputname function
John W. Eaton <jwe@octave.org>
parents: 11557
diff changeset
703 // It is better to save this in the hidden variable .argn. and
1e4dfc7a9487 use .argn. to store argument names for inputname function
John W. Eaton <jwe@octave.org>
parents: 11557
diff changeset
704 // then use that in the inputname function instead of using argn,
1e4dfc7a9487 use .argn. to store argument names for inputname function
John W. Eaton <jwe@octave.org>
parents: 11557
diff changeset
705 // which might be redefined in a function. Keep the old argn name
1e4dfc7a9487 use .argn. to store argument names for inputname function
John W. Eaton <jwe@octave.org>
parents: 11557
diff changeset
706 // for backward compatibility of functions that use it directly.
1e4dfc7a9487 use .argn. to store argument names for inputname function
John W. Eaton <jwe@octave.org>
parents: 11557
diff changeset
707
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
708 symbol_table::force_assign ("argn",
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
709 charMatrix (arg_names, Vstring_fill_char));
16442
302157614308 deprecate symbol_table::varref functions
John W. Eaton <jwe@octave.org>
parents: 16091
diff changeset
710 symbol_table::force_assign (".argn.", Cell (arg_names));
11558
1e4dfc7a9487 use .argn. to store argument names for inputname function
John W. Eaton <jwe@octave.org>
parents: 11557
diff changeset
711
1e4dfc7a9487 use .argn. to store argument names for inputname function
John W. Eaton <jwe@octave.org>
parents: 11557
diff changeset
712 symbol_table::mark_hidden (".argn.");
11557
e9d72a3caa46 mark automatic variables as automatic
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
713
e9d72a3caa46 mark automatic variables as automatic
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
714 symbol_table::mark_automatic ("argn");
11558
1e4dfc7a9487 use .argn. to store argument names for inputname function
John W. Eaton <jwe@octave.org>
parents: 11557
diff changeset
715 symbol_table::mark_automatic (".argn.");
11557
e9d72a3caa46 mark automatic variables as automatic
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
716 }
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
717
16442
302157614308 deprecate symbol_table::varref functions
John W. Eaton <jwe@octave.org>
parents: 16091
diff changeset
718 symbol_table::force_assign (".nargin.", nargin);
302157614308 deprecate symbol_table::varref functions
John W. Eaton <jwe@octave.org>
parents: 16091
diff changeset
719 symbol_table::force_assign (".nargout.", nargout);
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
720
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
721 symbol_table::mark_hidden (".nargin.");
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
722 symbol_table::mark_hidden (".nargout.");
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3933
diff changeset
723
11557
e9d72a3caa46 mark automatic variables as automatic
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
724 symbol_table::mark_automatic (".nargin.");
e9d72a3caa46 mark automatic variables as automatic
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
725 symbol_table::mark_automatic (".nargout.");
e9d72a3caa46 mark automatic variables as automatic
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
726
16442
302157614308 deprecate symbol_table::varref functions
John W. Eaton <jwe@octave.org>
parents: 16091
diff changeset
727 symbol_table::assign (".saved_warning_states.");
15427
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
728
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
729 symbol_table::mark_automatic (".saved_warning_states.");
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
730 symbol_table::mark_automatic (".saved_warning_states.");
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
731
3974
e2290bf911f0 [project @ 2002-07-04 17:38:22 by jwe]
jwe
parents: 3933
diff changeset
732 if (takes_varargs ())
16442
302157614308 deprecate symbol_table::varref functions
John W. Eaton <jwe@octave.org>
parents: 16091
diff changeset
733 symbol_table::assign ("varargin", va_args.cell_value ());
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11558
diff changeset
734
14571
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
735 // Force .ignored. variable to be undefined by default.
16442
302157614308 deprecate symbol_table::varref functions
John W. Eaton <jwe@octave.org>
parents: 16091
diff changeset
736 symbol_table::assign (".ignored.");
14571
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
737
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
738 if (lvalue_list)
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
739 {
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
740 octave_idx_type nbh = 0;
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
741 for (std::list<octave_lvalue>::const_iterator p = lvalue_list->begin ();
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
742 p != lvalue_list->end (); p++)
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
743 nbh += p->is_black_hole ();
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
744
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
745 if (nbh > 0)
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
746 {
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
747 // Only assign the hidden variable if black holes actually present.
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
748 Matrix bh (1, nbh);
18100
6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp.
Rik <rik@octave.org>
parents: 17856
diff changeset
749 octave_idx_type k = 0;
6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp.
Rik <rik@octave.org>
parents: 17856
diff changeset
750 octave_idx_type l = 0;
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
751 for (std::list<octave_lvalue>::const_iterator
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
752 p = lvalue_list->begin (); p != lvalue_list->end (); p++)
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
753 {
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
754 if (p->is_black_hole ())
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
755 bh(l++) = k+1;
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
756 k += p->numel ();
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
757 }
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
758
16442
302157614308 deprecate symbol_table::varref functions
John W. Eaton <jwe@octave.org>
parents: 16091
diff changeset
759 symbol_table::assign (".ignored.", bh);
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
760 }
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
761 }
14571
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
762
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
763 symbol_table::mark_hidden (".ignored.");
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
764 symbol_table::mark_automatic (".ignored.");
2974
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
765 }
ebbc34ff7f66 [project @ 1997-05-15 19:36:16 by jwe]
jwe
parents:
diff changeset
766
15427
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
767 void
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
768 octave_user_function::restore_warning_states (void)
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
769 {
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
770 octave_value val = symbol_table::varval (".saved_warning_states.");
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
771
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
772 if (val.is_defined ())
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
773 {
20557
b10432a40432 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20501
diff changeset
774 // Fail spectacularly if .saved_warning_states. is not an
b10432a40432 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20501
diff changeset
775 // octave_map (or octave_scalar_map) object.
15427
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
776
17612
4669cfca69a0 avoid crash when restoring warning states (bug #40199)
John W. Eaton <jwe@octave.org>
parents: 17281
diff changeset
777 if (! val.is_map ())
15427
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
778 panic_impossible ();
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
779
17612
4669cfca69a0 avoid crash when restoring warning states (bug #40199)
John W. Eaton <jwe@octave.org>
parents: 17281
diff changeset
780 octave_map m = val.map_value ();
4669cfca69a0 avoid crash when restoring warning states (bug #40199)
John W. Eaton <jwe@octave.org>
parents: 17281
diff changeset
781
15427
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
782 Cell ids = m.contents ("identifier");
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
783 Cell states = m.contents ("state");
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
784
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
785 for (octave_idx_type i = 0; i < m.numel (); i++)
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
786 Fwarning (ovl (states(i), ids(i)));
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
787 }
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
788 }
6823ad7a25b1 implement local option for warnings
John W. Eaton <jwe@octave.org>
parents: 15337
diff changeset
789
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
790 DEFUN (nargin, args, ,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
791 "-*- texinfo -*-\n\
20853
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20818
diff changeset
792 @deftypefn {} {} nargin ()\n\
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20818
diff changeset
793 @deftypefnx {} {} nargin (@var{fcn})\n\
19195
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
794 Report the number of input arguments to a function.\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
795 \n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
796 Called from within a function, return the number of arguments passed to the\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
797 function. At the top level, return the number of command line arguments\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
798 passed to Octave.\n\
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
799 \n\
18533
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
800 If called with the optional argument @var{fcn}---a function name or handle---\n\
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
801 return the declared number of arguments that the function can accept.\n\
18533
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
802 \n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
803 If the last argument to @var{fcn} is @var{varargin} the returned value is\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
804 negative. For example, the function @code{union} for sets is declared as\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
805 \n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
806 @example\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
807 @group\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
808 function [y, ia, ib] = union (a, b, varargin)\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
809 \n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
810 and\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
811 \n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
812 nargin (\"union\")\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
813 @result{} -3\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
814 @end group\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
815 @end example\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
816 \n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
817 Programming Note: @code{nargin} does not work on built-in functions.\n\
19195
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
818 @seealso{nargout, narginchk, varargin, inputname}\n\
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
819 @end deftypefn")
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
820 {
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
821 int nargin = args.length ();
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
822
20797
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
823 if (nargin > 1)
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
824 print_usage ();
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
825
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
826 octave_value retval;
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
827
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
828 if (nargin == 1)
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
829 {
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
830 octave_value func = args(0);
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
831
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
832 if (func.is_string ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
833 {
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
834 std::string name = func.string_value ();
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
835 func = symbol_table::find_function (name);
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
836 if (func.is_undefined ())
20893
384ff5aa9437 2015 Code Sprint: Eliminate useless return statements after error ().
Rik <rik@octave.org>
parents: 20853
diff changeset
837 error ("nargin: invalid function name: %s", name.c_str ());
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
838 }
13785
daf81e42960c allow nargin to work for functions that are not already loaded
John W. Eaton <jwe@octave.org>
parents: 13749
diff changeset
839
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
840 octave_function *fcn_val = func.function_value ();
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
841 if (! fcn_val)
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
842 error ("nargin: FCN must be a string or function handle");
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
843
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
844 octave_user_function *fcn = fcn_val->user_function_value (true);
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
845
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
846 if (fcn)
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
847 {
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
848 tree_parameter_list *param_list = fcn->parameter_list ();
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
849
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
850 retval = param_list ? param_list->length () : 0;
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
851 if (fcn->takes_varargs ())
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
852 retval = -1 - retval;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
853 }
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
854 else
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
855 {
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
856 // Matlab gives up for histc,
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
857 // so maybe it's ok that that we give up somtimes too?
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
858 error ("nargin: nargin information not available for built-in functions");
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
859 }
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
860 }
20797
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
861 else
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
862 {
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
863 retval = symbol_table::varval (".nargin.");
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
864
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
865 if (retval.is_undefined ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
866 retval = 0;
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
867 }
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
868
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
869 return retval;
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
870 }
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
871
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
872 DEFUN (nargout, args, ,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
873 "-*- texinfo -*-\n\
20853
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20818
diff changeset
874 @deftypefn {} {} nargout ()\n\
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20818
diff changeset
875 @deftypefnx {} {} nargout (@var{fcn})\n\
19195
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
876 Report the number of output arguments from a function.\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
877 \n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
878 Called from within a function, return the number of values the caller expects\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
879 to receive. At the top level, @code{nargout} with no argument is undefined\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
880 and will produce an error.\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
881 \n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
882 If called with the optional argument @var{fcn}---a function name or\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
883 handle---return the number of declared output values that the function can\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
884 produce.\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
885 \n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
886 If the final output argument is @var{varargout} the returned value is\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
887 negative.\n\
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
888 \n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
889 For example,\n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
890 \n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
891 @example\n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
892 f ()\n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
893 @end example\n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
894 \n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
895 @noindent\n\
4704
e1b71baef20c [project @ 2004-01-22 04:03:21 by jwe]
jwe
parents: 4700
diff changeset
896 will cause @code{nargout} to return 0 inside the function @code{f} and\n\
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
897 \n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
898 @example\n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
899 [s, t] = f ()\n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
900 @end example\n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
901 \n\
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
902 @noindent\n\
18533
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
903 will cause @code{nargout} to return 2 inside the function @code{f}.\n\
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
904 \n\
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
905 In the second usage,\n\
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
906 \n\
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
907 @example\n\
17757
dae2230227a7 doc: Use double-quote in preference to single quote in code examples.
Rik <rik@octave.org>
parents: 17744
diff changeset
908 nargout (@@histc) \% or nargout (\"histc\")\n\
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
909 @end example\n\
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
910 \n\
14366
b76f0740940e doc: Periodic grammar check of documentation.
Rik <octave@nomad.inbox5.com>
parents: 14328
diff changeset
911 @noindent\n\
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
912 will return 2, because @code{histc} has two outputs, whereas\n\
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
913 \n\
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
914 @example\n\
18533
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
915 nargout (@@imread)\n\
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
916 @end example\n\
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
917 \n\
14366
b76f0740940e doc: Periodic grammar check of documentation.
Rik <octave@nomad.inbox5.com>
parents: 14328
diff changeset
918 @noindent\n\
18533
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
919 will return -2, because @code{imread} has two outputs and the second is\n\
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
920 @var{varargout}.\n\
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
921 \n\
19195
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
922 Programming Note. @code{nargout} does not work for built-in functions and\n\
18533
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
923 returns -1 for all anonymous functions.\n\
19195
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
924 @seealso{nargin, varargout, isargout, nthargout}\n\
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
925 @end deftypefn")
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
926 {
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
927 int nargin = args.length ();
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
928
20797
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
929 if (nargin > 1)
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
930 print_usage ();
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
931
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
932 octave_value retval;
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
933
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
934 if (nargin == 1)
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
935 {
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
936 octave_value func = args(0);
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
937
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
938 if (func.is_string ())
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
939 {
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
940 std::string name = func.string_value ();
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
941 func = symbol_table::find_function (name);
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
942 if (func.is_undefined ())
20893
384ff5aa9437 2015 Code Sprint: Eliminate useless return statements after error ().
Rik <rik@octave.org>
parents: 20853
diff changeset
943 error ("nargout: invalid function name: %s", name.c_str ());
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
944 }
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
945
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
946 if (func.is_inline_function ())
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
947 return ovl (1);
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
948
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
949 if (func.is_function_handle ())
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
950 {
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
951 octave_fcn_handle *fh = func.fcn_handle_value ();
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
952 std::string fh_nm = fh->fcn_name ();
4930
bdb307dc8613 [project @ 2004-08-05 04:55:26 by jwe]
jwe
parents: 4929
diff changeset
953
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
954 if (fh_nm == octave_fcn_handle::anonymous)
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
955 return ovl (-1);
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
956 }
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
957
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
958 octave_function *fcn_val = func.function_value ();
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
959 if (! fcn_val)
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
960 error ("nargout: FCN must be a string or function handle");
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
961
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
962 octave_user_function *fcn = fcn_val->user_function_value (true);
14136
20cb178716ee Make nargin and nargout behave more like Matlab's (Bug #32700)
Iain Murray <iain@iainmurray.net>
parents: 12483
diff changeset
963
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
964 if (fcn)
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
965 {
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
966 tree_parameter_list *ret_list = fcn->return_list ();
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
967
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
968 retval = ret_list ? ret_list->length () : 0;
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
969
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
970 if (fcn->takes_var_return ())
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
971 retval = -1 - retval;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
972 }
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
973 else
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
974 {
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
975 // JWE said this information is not available (2011-03-10)
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
976 // without making intrusive changes to Octave.
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
977 // Matlab gives up for histc,
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
978 // so maybe it's ok that we give up somtimes too?
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
979 error ("nargout: nargout information not available for built-in functions.");
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
980 }
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
981 }
20797
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
982 else
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
983 {
7336
745a8299c2b5 [project @ 2007-12-28 20:56:55 by jwe]
jwe
parents: 7017
diff changeset
984 if (! symbol_table::at_top_level ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
985 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
986 retval = symbol_table::varval (".nargout.");
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
987
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
988 if (retval.is_undefined ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
989 retval = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
990 }
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
991 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
992 error ("nargout: invalid call at top level");
4700
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
993 }
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
994
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
995 return retval;
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
996 }
ca3a1d687bba [project @ 2004-01-21 03:28:31 by jwe]
jwe
parents: 4645
diff changeset
997
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
998 DEFUN (optimize_subsasgn_calls, args, nargout,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
999 "-*- texinfo -*-\n\
20853
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20818
diff changeset
1000 @deftypefn {} {@var{val} =} optimize_subsasgn_calls ()\n\
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20818
diff changeset
1001 @deftypefnx {} {@var{old_val} =} optimize_subsasgn_calls (@var{new_val})\n\
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20818
diff changeset
1002 @deftypefnx {} {} optimize_subsasgn_calls (@var{new_val}, \"local\")\n\
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
1003 Query or set the internal flag for subsasgn method call optimizations.\n\
18533
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
1004 \n\
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
1005 If true, Octave will attempt to eliminate the redundant copying when calling\n\
18533
ea0d4dea1a17 doc: Update documentation for functions in octave-value dir.
Rik <rik@octave.org>
parents: 17787
diff changeset
1006 the subsasgn method of a user-defined class.\n\
13951
79aa00a94e9e doc: Document "local" option for configuration variables.
Rik <octave@nomad.inbox5.com>
parents: 13785
diff changeset
1007 \n\
17281
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted.
Rik <rik@octave.org>
parents: 16856
diff changeset
1008 When called from inside a function with the @qcode{\"local\"} option, the\n\
20163
075a5e2e1ba5 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19697
diff changeset
1009 variable is changed locally for the function and any subroutines it calls.\n\
17281
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted.
Rik <rik@octave.org>
parents: 16856
diff changeset
1010 The original variable value is restored when exiting the function.\n\
9522
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
1011 @end deftypefn")
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
1012 {
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
1013 return SET_INTERNAL_VARIABLE (optimize_subsasgn_calls);
e79470be3ecb implement subsasgn this-arg optimization
Jaroslav Hajek <highegg@gmail.com>
parents: 9396
diff changeset
1014 }
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1015
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1016 static bool val_in_table (const Matrix& table, double val)
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1017 {
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1018 if (table.is_empty ())
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1019 return false;
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1020
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1021 octave_idx_type i = table.lookup (val, ASCENDING);
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1022 return (i > 0 && table(i-1) == val);
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1023 }
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1024
10847
7fa3c8e43357 change is_ignored_output to isargout
Jaroslav Hajek <highegg@gmail.com>
parents: 10846
diff changeset
1025 static bool isargout1 (int nargout, const Matrix& ignored, double k)
7fa3c8e43357 change is_ignored_output to isargout
Jaroslav Hajek <highegg@gmail.com>
parents: 10846
diff changeset
1026 {
7fa3c8e43357 change is_ignored_output to isargout
Jaroslav Hajek <highegg@gmail.com>
parents: 10846
diff changeset
1027 if (k != xround (k) || k <= 0)
20893
384ff5aa9437 2015 Code Sprint: Eliminate useless return statements after error ().
Rik <rik@octave.org>
parents: 20853
diff changeset
1028 error ("isargout: K must be a positive integer");
20921
4d3daf7e43f3 eliminate trailing whitespace in source files
John W. Eaton <jwe@octave.org>
parents: 20893
diff changeset
1029
20893
384ff5aa9437 2015 Code Sprint: Eliminate useless return statements after error ().
Rik <rik@octave.org>
parents: 20853
diff changeset
1030 return (k == 1 || k <= nargout) && ! val_in_table (ignored, k);
10847
7fa3c8e43357 change is_ignored_output to isargout
Jaroslav Hajek <highegg@gmail.com>
parents: 10846
diff changeset
1031 }
7fa3c8e43357 change is_ignored_output to isargout
Jaroslav Hajek <highegg@gmail.com>
parents: 10846
diff changeset
1032
7fa3c8e43357 change is_ignored_output to isargout
Jaroslav Hajek <highegg@gmail.com>
parents: 10846
diff changeset
1033 DEFUN (isargout, args, ,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17757
diff changeset
1034 "-*- texinfo -*-\n\
20853
1142cf6abc0d 2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents: 20818
diff changeset
1035 @deftypefn {} {} isargout (@var{k})\n\
11431
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11304
diff changeset
1036 Within a function, return a logical value indicating whether the argument\n\
19195
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
1037 @var{k} will be assigned to a variable on output.\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
1038 \n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
1039 If the result is false, the argument has been ignored during the function\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
1040 call through the use of the tilde (~) special output argument. Functions\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
1041 can use @code{isargout} to avoid performing unnecessary calculations for\n\
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
1042 outputs which are unwanted.\n\
11431
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11304
diff changeset
1043 \n\
14861
f7afecdd87ef maint: Use Octave coding conventions for cuddling parentheses in src/ directory
Rik <octave@nomad.inbox5.com>
parents: 14573
diff changeset
1044 If @var{k} is outside the range @code{1:max (nargout)}, the function returns\n\
11431
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11304
diff changeset
1045 false. @var{k} can also be an array, in which case the function works\n\
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11304
diff changeset
1046 element-by-element and a logical array is returned. At the top level,\n\
0d9640d755b1 Improve docstrings for all isXXX functions.
Rik <octave@nomad.inbox5.com>
parents: 11304
diff changeset
1047 @code{isargout} returns an error.\n\
19195
23519ad614da inputname.m: Overhaul function.
Rik <rik@octave.org>
parents: 18881
diff changeset
1048 @seealso{nargout, varargout, nthargout}\n\
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1049 @end deftypefn")
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1050 {
20818
cef0448a6ed2 eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents: 20797
diff changeset
1051 if (args.length () != 1)
20797
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
1052 print_usage ();
10847
7fa3c8e43357 change is_ignored_output to isargout
Jaroslav Hajek <highegg@gmail.com>
parents: 10846
diff changeset
1053
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1054 if (symbol_table::at_top_level ())
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1055 error ("isargout: invalid call at top level");
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1056
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1057 int nargout1 = symbol_table::varval (".nargout.").int_value ();
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1058
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1059 Matrix ignored;
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1060 octave_value tmp = symbol_table::varval (".ignored.");
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1061 if (tmp.is_defined ())
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1062 ignored = tmp.matrix_value ();
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1063
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1064 if (args(0).is_scalar_type ())
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1065 {
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1066 double k = args(0).double_value ();
20557
b10432a40432 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20501
diff changeset
1067
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1068 return ovl (isargout1 (nargout1, ignored, k));
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1069 }
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1070 else if (args(0).is_numeric_type ())
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1071 {
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1072 const NDArray ka = args(0).array_value ();
20797
492738d32c60 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20711
diff changeset
1073
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1074 boolNDArray r (ka.dims ());
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1075 for (octave_idx_type i = 0; i < ka.numel (); i++)
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1076 r(i) = isargout1 (nargout1, ignored, ka(i));
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1077
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1078 return ovl (r);
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1079 }
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1080 else
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1081 gripe_wrong_type_arg ("isargout", args(0));
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1082
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20921
diff changeset
1083 return octave_value_list ();
10832
1b2fcd122c6a allow user detect ignored outputs in m-functions
Jaroslav Hajek <highegg@gmail.com>
parents: 10637
diff changeset
1084 }
14571
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1085
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1086 /*
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1087 %!function [x, y] = try_isargout ()
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1088 %! if (isargout (1))
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1089 %! if (isargout (2))
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1090 %! x = 1; y = 2;
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1091 %! else
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1092 %! x = -1;
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1093 %! endif
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1094 %! else
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1095 %! if (isargout (2))
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1096 %! y = -2;
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1097 %! else
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1098 %! error ("no outputs requested");
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1099 %! endif
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1100 %! endif
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1101 %!endfunction
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1102 %!
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1103 %!test
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1104 %! [x, y] = try_isargout ();
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1105 %! assert ([x, y], [1, 2]);
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1106 %!
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1107 %!test
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1108 %! [x, ~] = try_isargout ();
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1109 %! assert (x, -1);
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1110 %!
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1111 %!test
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1112 %! [~, y] = try_isargout ();
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1113 %! assert (y, -2);
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1114 %!
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1115 %!error [~, ~] = try_isargout ();
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1116 %!
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1117 %% Check to see that isargout isn't sticky:
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1118 %!test
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1119 %! [x, y] = try_isargout ();
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1120 %! assert ([x, y], [1, 2]);
16091
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1121 %!
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1122 %% It should work without ():
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1123 %!test
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1124 %! [~, y] = try_isargout;
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1125 %! assert (y, -2);
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1126 %!
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1127 %% It should work in function handles, anonymous functions, and cell
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1128 %% arrays of handles or anonymous functions.
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1129 %!test
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1130 %! fh = @try_isargout;
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1131 %! af = @() try_isargout;
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1132 %! c = {fh, af};
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1133 %! [~, y] = fh ();
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1134 %! assert (y, -2);
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1135 %! [~, y] = af ();
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1136 %! assert (y, -2);
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1137 %! [~, y] = c{1}();
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1138 %! assert (y, -2);
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1139 %! [~, y] = c{2}();
1785493171ac pass lvalue_list to more subsref calls (bug #38374)
John W. Eaton <jwe@octave.org>
parents: 15582
diff changeset
1140 %! assert (y, -2);
14571
6131fead3135 ensure isargout is not sticky
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
1141 */