Mercurial > hg > octave-lyh
annotate src/pt-fcn-handle.cc @ 8523:ad3afaaa19c1
implement non-copying contiguous range indexing
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Thu, 15 Jan 2009 07:22:24 +0100 |
| parents | 24701aa75ecb |
| children | 73c4516fae10 |
| rev | line source |
|---|---|
| 4343 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 2003, 2004, 2005, 2006, 2007 John W. Eaton |
| 4343 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 4343 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 4343 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
| 27 #include <iostream> | |
| 28 | |
| 29 #include "error.h" | |
| 30 #include "oct-obj.h" | |
| 31 #include "ov-fcn-handle.h" | |
| 32 #include "pt-fcn-handle.h" | |
| 33 #include "pager.h" | |
| 34 #include "pt-walk.h" | |
| 5861 | 35 #include "variables.h" |
| 4343 | 36 |
| 37 void | |
| 38 tree_fcn_handle::print (std::ostream& os, bool pr_as_read_syntax, | |
| 39 bool pr_orig_text) | |
| 40 { | |
| 41 print_raw (os, pr_as_read_syntax, pr_orig_text); | |
| 42 } | |
| 43 | |
| 44 void | |
| 45 tree_fcn_handle::print_raw (std::ostream& os, bool pr_as_read_syntax, | |
| 46 bool pr_orig_text) | |
| 47 { | |
| 48 os << ((pr_as_read_syntax || pr_orig_text) ? "@" : "") << nm; | |
| 49 } | |
| 50 | |
| 51 octave_value | |
| 52 tree_fcn_handle::rvalue (void) | |
| 53 { | |
| 54 MAYBE_DO_BREAKPOINT; | |
| 55 | |
| 56 return make_fcn_handle (nm); | |
| 57 } | |
| 58 | |
| 59 | |
| 60 octave_value_list | |
| 61 tree_fcn_handle::rvalue (int nargout) | |
| 62 { | |
| 63 octave_value_list retval; | |
| 64 | |
| 65 if (nargout > 1) | |
| 66 error ("invalid number of output arguments for function handle expression"); | |
| 67 else | |
| 68 retval = rvalue (); | |
| 69 | |
| 70 return retval; | |
| 71 } | |
| 72 | |
| 5861 | 73 tree_expression * |
|
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74 tree_fcn_handle::dup (symbol_table::scope_id, |
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75 symbol_table::context_id) |
| 5861 | 76 { |
| 77 tree_fcn_handle *new_fh = new tree_fcn_handle (nm, line (), column ()); | |
| 78 | |
| 79 new_fh->copy_base (*this); | |
| 80 | |
| 81 return new_fh; | |
| 82 } | |
| 83 | |
| 4343 | 84 void |
| 85 tree_fcn_handle::accept (tree_walker& tw) | |
| 86 { | |
| 87 tw.visit_fcn_handle (*this); | |
| 88 } | |
| 89 | |
| 5861 | 90 octave_value |
| 91 tree_anon_fcn_handle::rvalue (void) | |
| 92 { | |
| 93 MAYBE_DO_BREAKPOINT; | |
| 94 | |
| 7336 | 95 tree_parameter_list *param_list = parameter_list (); |
| 96 tree_parameter_list *ret_list = return_list (); | |
| 97 tree_statement_list *cmd_list = body (); | |
| 98 symbol_table::scope_id this_scope = scope (); | |
| 5861 | 99 |
| 7336 | 100 symbol_table::scope_id new_scope = symbol_table::dup_scope (this_scope); |
| 5861 | 101 |
| 7336 | 102 if (new_scope > 0) |
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103 symbol_table::inherit (new_scope, symbol_table::current_scope (), |
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104 symbol_table::current_context ()); |
| 5861 | 105 |
| 106 octave_user_function *uf | |
| 7336 | 107 = new octave_user_function (new_scope, |
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108 param_list ? param_list->dup (new_scope, 0) : 0, |
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109 ret_list ? ret_list->dup (new_scope, 0) : 0, |
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110 cmd_list ? cmd_list->dup (new_scope, 0) : 0); |
| 5861 | 111 |
| 6656 | 112 octave_function *curr_fcn = octave_call_stack::current (); |
| 113 | |
| 114 if (curr_fcn) | |
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115 { |
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116 uf->stash_parent_fcn_name (curr_fcn->name ()); |
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117 |
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parents:
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118 symbol_table::scope_id parent_scope = curr_fcn->parent_fcn_scope (); |
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scope fixes for anonymous and inline functions that appear inside subfunctions
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parents:
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119 |
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scope fixes for anonymous and inline functions that appear inside subfunctions
John W. Eaton <jwe@octave.org>
parents:
8032
diff
changeset
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120 if (parent_scope < 0) |
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24701aa75ecb
scope fixes for anonymous and inline functions that appear inside subfunctions
John W. Eaton <jwe@octave.org>
parents:
8032
diff
changeset
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121 parent_scope = curr_fcn->scope (); |
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scope fixes for anonymous and inline functions that appear inside subfunctions
John W. Eaton <jwe@octave.org>
parents:
8032
diff
changeset
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122 |
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scope fixes for anonymous and inline functions that appear inside subfunctions
John W. Eaton <jwe@octave.org>
parents:
8032
diff
changeset
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123 uf->stash_parent_fcn_scope (parent_scope); |
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stash parent function scope for inline functions and anonymous function handles.
John W. Eaton <jwe@octave.org>
parents:
7767
diff
changeset
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124 } |
| 6656 | 125 |
| 6149 | 126 uf->mark_as_inline_function (); |
| 127 | |
| 6505 | 128 octave_value ov_fcn (uf); |
| 5861 | 129 |
| 6505 | 130 octave_value fh (new octave_fcn_handle (ov_fcn, "@<anonymous>")); |
| 5861 | 131 |
| 132 return fh; | |
| 133 } | |
| 134 | |
| 135 octave_value_list | |
| 136 tree_anon_fcn_handle::rvalue (int nargout) | |
| 137 { | |
| 138 octave_value_list retval; | |
| 139 | |
| 140 if (nargout > 1) | |
| 141 error ("invalid number of output arguments for anonymous function handle expression"); | |
| 142 else | |
| 143 retval = rvalue (); | |
| 144 | |
| 145 return retval; | |
| 146 } | |
| 147 | |
| 148 tree_expression * | |
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7767
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
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149 tree_anon_fcn_handle::dup (symbol_table::scope_id parent_scope, |
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71f068b22fcc
scope and context fixes for function handles
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parents:
7336
diff
changeset
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150 symbol_table::context_id parent_context) |
| 5861 | 151 { |
| 7336 | 152 tree_parameter_list *param_list = parameter_list (); |
| 153 tree_parameter_list *ret_list = return_list (); | |
| 154 tree_statement_list *cmd_list = body (); | |
| 155 symbol_table::scope_id this_scope = scope (); | |
| 6505 | 156 |
| 7336 | 157 symbol_table::scope_id new_scope = symbol_table::dup_scope (this_scope); |
| 6061 | 158 |
| 7336 | 159 if (new_scope > 0) |
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7767
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scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
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160 symbol_table::inherit (new_scope, parent_scope, parent_context); |
| 6061 | 161 |
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parents:
7336
diff
changeset
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162 tree_anon_fcn_handle *new_afh = new |
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71f068b22fcc
scope and context fixes for function handles
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parents:
7336
diff
changeset
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163 tree_anon_fcn_handle (param_list ? param_list->dup (new_scope, 0) : 0, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
164 ret_list ? ret_list->dup (new_scope, 0) : 0, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
165 cmd_list ? cmd_list->dup (new_scope, 0) : 0, |
|
71f068b22fcc
scope and context fixes for function handles
John W. Eaton <jwe@octave.org>
parents:
7336
diff
changeset
|
166 new_scope, line (), column ()); |
| 5861 | 167 |
| 168 new_afh->copy_base (*this); | |
| 169 | |
| 170 return new_afh; | |
| 171 } | |
| 172 | |
| 173 void | |
| 174 tree_anon_fcn_handle::accept (tree_walker& tw) | |
| 175 { | |
| 176 tw.visit_anon_fcn_handle (*this); | |
| 177 } | |
| 178 | |
| 179 | |
| 180 | |
| 4343 | 181 /* |
| 182 ;;; Local Variables: *** | |
| 183 ;;; mode: C++ *** | |
| 184 ;;; End: *** | |
| 185 */ |