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annotate libinterp/parse-tree/pt-fcn-handle.cc @ 23795:980f39c3ab90

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Use C++11 nullptr rather than 0 in code (bug #51565). * Backend.cc, BaseControl.h, ButtonGroup.cc, CheckBoxControl.cc, Container.cc, ContextMenu.cc, ContextMenu.h, EditControl.cc, Figure.cc, FigureWindow.cc, ListBoxControl.cc, Menu.cc, Menu.h, MouseModeActionGroup.cc, Object.cc, ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc, PushTool.cc, RadioButtonControl.cc, SliderControl.cc, TextControl.cc, ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, ToolBar.h, ToolBarButton.cc, ToolBarButton.h, QTerminal.h, BlockArray.cpp, Emulation.cpp, Filter.cpp, Filter.h, History.cpp, KeyboardTranslator.cpp, QUnixTerminalImpl.h, Screen.cpp, ScreenWindow.cpp, ScreenWindow.h, SelfListener.h, TerminalCharacterDecoder.cpp, TerminalModel.cpp, TerminalView.cpp, TerminalView.h, kpty.cpp, dialog.cc, dialog.h, files-dock-widget.cc, find-files-model.h, file-editor-tab.cc, file-editor.cc, main-window.cc, octave-dock-widget.cc, octave-gui.cc, parser.cc, resource-manager.cc, resource-manager.h, shortcut-manager.cc, shortcut-manager.h, workspace-model.cc, workspace-view.cc, __magick_read__.cc, c-file-ptr-stream.cc, c-file-ptr-stream.h, call-stack.cc, call-stack.h, daspk.cc, dasrt.cc, dassl.cc, det.cc, display.h, error.cc, ft-text-renderer.cc, gl-render.cc, gl2ps-print.cc, graphics.in.h, help.cc, input.cc, interpreter.cc, load-path.cc, load-save.cc, ls-hdf5.cc, ls-hdf5.h, ls-mat5.cc, lsode.cc, mex.cc, mxarray.in.h, oct-errno.h, oct-hist.cc, oct-iostrm.h, oct-procbuf.cc, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, oct-tex-parser.in.yy, octave-link.h, pager.cc, pager.h, pr-output.cc, procstream.h, qz.cc, sighandlers.cc, svd.cc, symtab.cc, symtab.h, text-renderer.cc, txt-eng.h, utils.cc, variables.cc, zfstream.cc, zfstream.h, __glpk__.cc, __init_fltk__.cc, __ode15__.cc, audiodevinfo.cc, ccolamd.cc, colamd.cc, dmperm.cc, gzip.cc, symbfact.cc, ov-base-int.cc, ov-base-int.h, ov-base-mat.h, ov-base.cc, ov-base.h, ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-builtin.h, ov-cell.cc, ov-class.cc, ov-complex.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-fcn.cc, ov-fcn.h, ov-float.cc, ov-flt-complex.cc, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-java.cc, ov-java.h, ov-mex-fcn.cc, ov-oncleanup.cc, ov-range.cc, ov-range.h, ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, octave.cc, bp-table.cc, bp-table.h, jit-ir.h, jit-typeinfo.cc, lex.h, profiler.cc, pt-arg-list.cc, pt-array-list.cc, pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h, pt-cell.cc, pt-classdef.cc, pt-classdef.h, pt-colon.cc, pt-colon.h, pt-decl.cc, pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-idx.cc, pt-jit.cc, pt-loop.h, pt-mat.cc, pt-select.h, pt-stmt.h, pt-tm-const.h, pt-unop.cc, pt-unop.h, pt.cc, Array-C.cc, Array-d.cc, Array-f.cc, Array-fC.cc, Array-util.cc, Array.cc, Array.h, CMatrix.cc, CSparse.cc, DiagArray2.h, MArray.h, MDiagArray2.h, MatrixType.cc, Sparse.cc, Sparse.h, dMatrix.cc, dSparse.cc, fMatrix.cc, idx-vector.cc, idx-vector.h, DAEFunc.h, DAERTFunc.h, ODEFunc.h, ODESFunc.h, eigs-base.cc, oct-fftw.cc, oct-fftw.h, oct-rand.h, oct-spparms.h, schur.cc, sparse-chol.cc, sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, child-list.h, dir-ops.cc, dir-ops.h, file-ops.cc, lo-sysdep.cc, oct-env.h, oct-time.cc, cmd-edit.cc, cmd-edit.h, cmd-hist.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, oct-shlib.cc, oct-shlib.h, oct-sort.cc, oct-sort.h, quit.cc, singleton-cleanup.h, str-vec.cc: Use C++11 nullptr rather than 0 in code (bug #51565).
author Rik <rik@octave.org>
date Tue, 25 Jul 2017 14:54:10 -0700
parents 08036a7f3660
children bc3819b7cca1
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1 /*
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2
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3 Copyright (C) 2003-2017 John W. Eaton
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4
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5 This file is part of Octave.
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6
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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
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your 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
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 #if defined (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 <iostream>
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28
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29 #include "interpreter-private.h"
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30 #include "pt-fcn-handle.h"
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31
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32 namespace octave
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33 {
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34 void
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35 tree_fcn_handle::print (std::ostream& os, bool pr_as_read_syntax,
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36 bool pr_orig_text)
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37 {
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38 print_raw (os, pr_as_read_syntax, pr_orig_text);
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39 }
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40
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41 void
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42 tree_fcn_handle::print_raw (std::ostream& os, bool pr_as_read_syntax,
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43 bool pr_orig_text)
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44 {
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45 os << ((pr_as_read_syntax || pr_orig_text) ? "@" : "") << nm;
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46 }
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47
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48 tree_expression *
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49 tree_fcn_handle::dup (symbol_table::scope&) const
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50 {
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51 tree_fcn_handle *new_fh = new tree_fcn_handle (nm, line (), column ());
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52
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53 new_fh->copy_base (*this);
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54
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55 return new_fh;
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56 }
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57
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58 tree_anon_fcn_handle::~tree_anon_fcn_handle (void)
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59 {
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60 delete m_parameter_list;
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61 delete m_expression;
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62 delete m_scope;
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63 }
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64
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65 tree_expression *
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66 tree_anon_fcn_handle::dup (symbol_table::scope&) const
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67 {
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68 tree_parameter_list *param_list = parameter_list ();
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69 tree_expression *expr = expression ();
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70
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71 symbol_table::scope *af_scope = m_scope;
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72 symbol_table::scope *af_parent_scope = m_parent_scope;
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73
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74 symbol_table& symtab
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75 = __get_symbol_table__ ("tree_anon_fcn_handle::dup");
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76
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77 symbol_table::scope *new_scope = af_scope ? af_scope->dup () : nullptr;
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78
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79 // FIXME: why should we inherit from the current scope here? That
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80 // doesn't seem right, but with the way things work now it appears
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81 // to be required for bug-31371.tst to pass.
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82
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83 if (new_scope)
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84 symtab.inherit (new_scope);
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85
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86 tree_anon_fcn_handle *new_afh = new
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87 tree_anon_fcn_handle (param_list ? param_list->dup (*new_scope) : nullptr,
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88 expr ? expr->dup (*new_scope) : nullptr,
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89 new_scope, af_parent_scope, line (), column ());
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90
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91 new_afh->copy_base (*this);
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92
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93 return new_afh;
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94 }
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95 }
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96
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97 /*
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98 %!function r = __f2 (f, x)
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99 %! r = f (x);
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100 %!endfunction
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101 %!function f = __f1 (k)
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102 %! f = @(x) __f2 (@(y) y-k, x);
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103 %!endfunction
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104
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105 %!assert ((__f1 (3)) (10) == 7)
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106
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107 %!test
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108 %! g = @(t) feval (@(x) t*x, 2);
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109 %! assert (g(0.5) == 1);
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110
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111 %!test
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112 %! h = @(x) sin (x);
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113 %! g = @(f, x) h (x);
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114 %! f = @() g (@(x) h, pi);
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115 %! assert (f () == sin (pi));
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116
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117 The next two tests are intended to test parsing of a character string
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118 vs. hermitian operator at the beginning of an anonymous function
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119 expression. The use of ' for the character string and the spacing is
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120 intentional, so don't change it.
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121
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122 %!test
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123 %! f = @() 'foo';
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124 %! assert (f (), 'foo');
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125
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126 %!test
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127 %! f = @()'foo';
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128 %! assert (f (), 'foo');
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129 */