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annotate libinterp/parse-tree/pt-fcn-handle.cc @ 20940:48b2ad5ee801

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maint: Rename oct-obj.[cc|h] to ovl.[cc|h] for clarity. * libinterp/corefcn/oct-obj.h: Replaced. Contains a #warning issued if used in compilation and includes "ovl.h" instead. Original file renamed to libinterp/octave-value/ovl.h * libinterp/corefcn/oct-obj.cc: Renamed to libinterp/octave-value/ovl.cc. * oct-obj.cc (ovl ()): Added new function to return empty octave_value_list. * libinterp/corefcn/module.mk: Remove oct-obj.cc from build system. * libinterp/octave-value/module.mk: Add ovl.h and ovl.cc to build system. * mk-opts.pl, annotation-dialog.h, Cell.cc, __contourc__.cc, __dsearchn__.cc, __lin_interpn__.cc, __pchip_deriv__.cc, __qp__.cc, balance.cc, besselj.cc, betainc.cc, colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc, defaults.cc, defun.cc, det.cc, dirfns.cc, dlmread.cc, eig.cc, error.cc, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc, givens.cc, graphics.cc, gripes.cc, help.cc, hess.cc, hex2num.cc, hook-fcn.h, input.cc, input.h, inv.cc, kron.cc, load-save.cc, lookup.cc, ls-hdf5.cc, ls-mat-ascii.cc, ls-mat4.cc, ls-mat5.cc, ls-oct-binary.cc, ls-oct-text.cc, lsode.cc, lu.cc, luinc.cc, max.cc, mex.cc, oct-hist.cc, oct-lvalue.cc, oct-lvalue.h, oct-map.h, oct-stream.cc, oct.h, ordschur.cc, pager.cc, pinv.cc, pr-output.cc, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, sparse-xpow.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc, symtab.h, syscalls.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, urlwrite.cc, utils.cc, variables.cc, xpow.cc, __delaunayn__.cc, __glpk__.cc, __voronoi__.cc, audiodevinfo.cc, audioread.cc, chol.cc, convhulln.cc, dmperm.cc, qr.cc, symbfact.cc, mkbuiltins, ov-base-diag.h, ov-base-int.cc, ov-base-mat.cc, ov-base-mat.h, ov-base-scalar.cc, ov-base-sparse.cc, ov-base-sparse.h, ov-base.cc, ov-bool-mat.cc, ov-bool.cc, ov-builtin.cc, ov-cell.cc, ov-colon.cc, ov-complex.cc, ov-cs-list.h, ov-cx-mat.cc, ov-dld-fcn.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-int16.cc, ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.h, ov-mex-fcn.cc, ov-perm.h, ov-range.cc, ov-re-mat.cc, ov-scalar.cc, ov-str-mat.cc, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, octave.cc, op-b-b.cc, op-b-bm.cc, op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc, op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc, op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc, op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc, op-double-conv.cc, op-fcdm-fcdm.cc, op-fcdm-fdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-float-conv.cc, op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc, op-int-conv.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc, op-m-scm.cc, op-m-sm.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc, op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc, parse.h, pt-arg-list.cc, pt-assign.cc, pt-binop.cc, pt-cbinop.cc, pt-cell.cc, pt-colon.cc, pt-const.cc, pt-eval.h, pt-fcn-handle.cc, pt-funcall.h, pt-id.cc, pt-idx.cc, pt-jump.cc, pt-mat.cc, pt-select.cc, pt-unop.cc, token.cc, Array-sym.cc: replace '#include "oct-obj.h"' with '#include "ovl.h"'.
author Rik <rik@octave.org>
date Fri, 18 Dec 2015 16:04:56 -0800
parents 4197fc428c7d
children 5e00ed38a58b
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1 /*
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2
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3 Copyright (C) 2003-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
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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
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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 <iostream>
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28
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29 #include "error.h"
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30 #include "ovl.h"
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31 #include "ov-fcn-handle.h"
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32 #include "pt-fcn-handle.h"
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33 #include "pager.h"
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34 #include "pt-const.h"
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35 #include "pt-walk.h"
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36 #include "variables.h"
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37
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38 void
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39 tree_fcn_handle::print (std::ostream& os, bool pr_as_read_syntax,
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40 bool pr_orig_text)
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41 {
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42 print_raw (os, pr_as_read_syntax, pr_orig_text);
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43 }
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44
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45 void
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46 tree_fcn_handle::print_raw (std::ostream& os, bool pr_as_read_syntax,
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47 bool pr_orig_text)
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48 {
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49 os << ((pr_as_read_syntax || pr_orig_text) ? "@" : "") << nm;
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50 }
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51
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52 octave_value
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53 tree_fcn_handle::rvalue1 (int)
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54 {
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55 return make_fcn_handle (nm);
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56 }
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57
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58 octave_value_list
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59 tree_fcn_handle::rvalue (int nargout)
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60 {
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61 octave_value_list retval;
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62
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63 if (nargout > 1)
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64 error ("invalid number of output arguments for function handle expression");
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65 else
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66 retval = rvalue1 (nargout);
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67
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68 return retval;
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69 }
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70
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71 tree_expression *
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72 tree_fcn_handle::dup (symbol_table::scope_id,
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73 symbol_table::context_id) const
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74 {
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75 tree_fcn_handle *new_fh = new tree_fcn_handle (nm, line (), column ());
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76
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77 new_fh->copy_base (*this);
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78
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79 return new_fh;
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80 }
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81
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82 void
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83 tree_fcn_handle::accept (tree_walker& tw)
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84 {
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85 tw.visit_fcn_handle (*this);
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86 }
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87
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88 octave_value
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89 tree_anon_fcn_handle::rvalue1 (int)
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90 {
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91 // FIXME: should CMD_LIST be limited to a single expression?
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92 // I think that is what Matlab does.
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93
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94 tree_parameter_list *param_list = parameter_list ();
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95 tree_parameter_list *ret_list = return_list ();
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96 tree_statement_list *cmd_list = body ();
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97 symbol_table::scope_id this_scope = scope ();
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98
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99 symbol_table::scope_id new_scope = symbol_table::dup_scope (this_scope);
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100
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101 if (new_scope > 0)
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102 symbol_table::inherit (new_scope, symbol_table::current_scope (),
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103 symbol_table::current_context ());
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104
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105 octave_user_function *uf
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106 = new octave_user_function (new_scope,
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107 param_list ? param_list->dup (new_scope, 0) : 0,
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108 ret_list ? ret_list->dup (new_scope, 0) : 0,
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109 cmd_list ? cmd_list->dup (new_scope, 0) : 0);
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110
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111 octave_function *curr_fcn = octave_call_stack::current ();
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112
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113 if (curr_fcn)
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114 {
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115 // FIXME: maybe it would be better to just stash curr_fcn
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116 // instead of individual bits of info about it?
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117
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118 uf->stash_parent_fcn_name (curr_fcn->name ());
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119 uf->stash_dir_name (curr_fcn->dir_name ());
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120
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121 symbol_table::scope_id parent_scope = curr_fcn->parent_fcn_scope ();
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122
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123 if (parent_scope < 0)
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124 parent_scope = curr_fcn->scope ();
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125
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126 uf->stash_parent_fcn_scope (parent_scope);
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127
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128 if (curr_fcn->is_class_method () || curr_fcn->is_class_constructor ())
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129 uf->stash_dispatch_class (curr_fcn->dispatch_class ());
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130 }
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131
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132 uf->mark_as_anonymous_function ();
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133 uf->stash_fcn_file_name (file_name);
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134 uf->stash_fcn_location (line (), column ());
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135
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136 octave_value ov_fcn (uf);
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137
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138 octave_value fh (octave_fcn_binder::maybe_binder (ov_fcn));
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139
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140 return fh;
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141 }
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142
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143 /*
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144 %!function r = __f2 (f, x)
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145 %! r = f (x);
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146 %!endfunction
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147 %!function f = __f1 (k)
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148 %! f = @(x) __f2 (@(y) y-k, x);
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149 %!endfunction
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150
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151 %!assert ((__f1 (3)) (10) == 7)
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152
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153 %!test
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154 %! g = @(t) feval (@(x) t*x, 2);
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155 %! assert (g(0.5) == 1);
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156
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157 %!test
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158 %! h = @(x) sin (x);
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159 %! g = @(f, x) h (x);
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160 %! f = @() g (@(x) h, pi);
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161 %! assert (f () == sin (pi));
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162
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163 The next two tests are intended to test parsing of a character string
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164 vs. hermitian operator at the beginning of an anonymous function
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165 expression. The use of ' for the character string and the spacing is
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166 intentional, so don't change it.
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167
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168 %!test
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169 %! f = @() 'foo';
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170 %! assert (f (), 'foo');
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171
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172 %!test
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173 %! f = @()'foo';
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174 %! assert (f (), 'foo');
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175 */
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176
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177 octave_value_list
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178 tree_anon_fcn_handle::rvalue (int nargout)
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179 {
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180 octave_value_list retval;
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181
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182 if (nargout > 1)
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183 error ("invalid number of output arguments for anonymous function handle expression");
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184 else
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185 retval = rvalue1 (nargout);
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186
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187 return retval;
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188 }
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189
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190 tree_expression *
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191 tree_anon_fcn_handle::dup (symbol_table::scope_id,
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192 symbol_table::context_id) const
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193 {
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194 tree_parameter_list *param_list = parameter_list ();
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195 tree_parameter_list *ret_list = return_list ();
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196 tree_statement_list *cmd_list = body ();
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197 symbol_table::scope_id this_scope = scope ();
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198
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199 symbol_table::scope_id new_scope = symbol_table::dup_scope (this_scope);
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200
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201 if (new_scope > 0)
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202 symbol_table::inherit (new_scope, symbol_table::current_scope (),
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203 symbol_table::current_context ());
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204
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205 tree_anon_fcn_handle *new_afh = new
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206 tree_anon_fcn_handle (param_list ? param_list->dup (new_scope, 0) : 0,
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207 ret_list ? ret_list->dup (new_scope, 0) : 0,
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208 cmd_list ? cmd_list->dup (new_scope, 0) : 0,
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diff changeset
209 new_scope, line (), column ());
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210
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211 new_afh->copy_base (*this);
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212
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213 return new_afh;
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214 }
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215
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216 void
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217 tree_anon_fcn_handle::accept (tree_walker& tw)
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218 {
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219 tw.visit_anon_fcn_handle (*this);
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220 }