Mercurial > octave
annotate libinterp/octave-value/ov-usr-fcn.h @ 16442:302157614308
deprecate symbol_table::varref functions
* ov-usr-fcn.h (octave_user_function::argn_varref,
octave_user_function::nargin_varref,
octave_user_function::nargout_varref,
octave_user_function::varargin_varref): Delete unused variables.
* symtab.h (symbol_table::symbol_record::symbol_record_ref::assign,
symbol_table::symbol_record::symbol_record_ref::do_non_const_unary_op,
symbol_table::symbol_record::do_non_const_unary_op,
(symbol_table::symbol_record::is_undefined,
symbol_table::symbol_record::assign, symbol_table::assign,
symbol_table::force_assign, symbol_table::global_assign,
symbol_table::persistent_assign, symbol_table::top_level_assign,
symbol_table::do_assign, symbol_table::do_persistent_assign):
New functions.
(symbol_table::symbol_record::symbol_record_ref::varref):
Avoid calls to deprecated functions.
(symbol_table::varref, symbol_table::force_varref,
symbol_table::global_varref, symbol_table::persistent_varref,
symbol_table::top_level_varref, symbol_table::do_varref,
symbol_table::do_persistent_varref): Deprecate.
(symbol_table::symbol_reference::is_black_hole): New function.
* oct-lvalue.h, oct-lvalue.cc: Store symbol_reference instead of
pointer to octave_value object.
(octave_lvalue::value): Now const.
(octave_lvalue::object): Delete.
* pt-id.cc (tree_identifier::lvalue): Construct octave_lvalue from
sym, not sym->varref.
* ls-mat5.cc, oct-lvalue.cc, oct-lvalue.h, pt-jit.cc, error.cc,
load-save.cc, symtab.cc, symtab.h, variables.cc, ov-fcn-handle.cc,
ov-usr-fcn.cc, ov-usr-fcn.h, oct-parse.in.yy, pt-eval.cc, pt-id.h,
pt-idx.cc, mex.cc: Change all uses of varref functions to use assign
instead. Use varval instead of varref where appropriate.
* load-save.cc (install_loaded_variable): Don't manipulate
symbol_record directly.
author | John W. Eaton <jwe@octave.org> |
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date | Sat, 06 Apr 2013 11:51:23 -0400 |
parents | 6823ad7a25b1 |
children | 2ed5bc680c71 645672f1c873 |
rev | line source |
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2974 | 1 /* |
2 | |
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3 Copyright (C) 1996-2012 John W. Eaton |
2974 | 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. | |
2974 | 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/>. | |
2974 | 20 |
21 */ | |
22 | |
23 #if !defined (octave_user_function_h) | |
24 #define octave_user_function_h 1 | |
25 | |
26 #include <ctime> | |
27 | |
28 #include <string> | |
4214 | 29 #include <stack> |
2974 | 30 |
3665 | 31 #include "comment-list.h" |
2974 | 32 #include "oct-obj.h" |
33 #include "ov-fcn.h" | |
34 #include "ov-typeinfo.h" | |
7336 | 35 #include "symtab.h" |
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36 #include "unwind-prot.h" |
2974 | 37 |
38 class string_vector; | |
39 | |
40 class octave_value; | |
41 class tree_parameter_list; | |
42 class tree_statement_list; | |
43 class tree_va_return_list; | |
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44 class tree_expression; |
2974 | 45 class tree_walker; |
46 | |
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47 #ifdef HAVE_LLVM |
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48 class jit_function_info; |
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49 #endif |
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50 |
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51 class |
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52 octave_user_code : public octave_function |
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53 { |
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54 public: |
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55 octave_user_code (void) |
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56 : octave_function () { } |
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57 |
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58 ~octave_user_code (void) { } |
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59 |
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60 bool is_user_code (void) const { return true; } |
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61 |
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62 virtual tree_statement_list *body (void) = 0; |
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63 |
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64 protected: |
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65 |
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66 octave_user_code (const std::string& nm, |
10313 | 67 const std::string& ds = std::string ()) |
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68 : octave_function (nm, ds) { } |
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69 |
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70 private: |
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71 |
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72 // No copying! |
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73 |
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74 octave_user_code (const octave_user_code& f); |
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75 |
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76 octave_user_code& operator = (const octave_user_code& f); |
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77 }; |
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78 |
5744 | 79 // Scripts. |
80 | |
81 class | |
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82 octave_user_script : public octave_user_code |
5744 | 83 { |
84 public: | |
85 | |
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86 octave_user_script (void); |
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87 |
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88 octave_user_script (const std::string& fnm, const std::string& nm, |
10313 | 89 tree_statement_list *cmds, |
90 const std::string& ds = std::string ()); | |
5744 | 91 |
92 octave_user_script (const std::string& fnm, const std::string& nm, | |
10313 | 93 const std::string& ds = std::string ()); |
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94 |
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95 ~octave_user_script (void); |
5744 | 96 |
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97 octave_function *function_value (bool = false) { return this; } |
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98 |
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99 octave_user_script *user_script_value (bool = false) { return this; } |
5744 | 100 |
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101 octave_user_code *user_code_value (bool = false) { return this; } |
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102 |
5744 | 103 // Scripts and user functions are both considered "scripts" because |
104 // they are written in Octave's scripting language. | |
105 | |
106 bool is_user_script (void) const { return true; } | |
107 | |
108 void stash_fcn_file_name (const std::string& nm) { file_name = nm; } | |
109 | |
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110 void mark_fcn_file_up_to_date (const octave_time& t) { t_checked = t; } |
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111 |
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112 void stash_fcn_file_time (const octave_time& t) |
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113 { |
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114 t_parsed = t; |
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115 mark_fcn_file_up_to_date (t); |
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116 } |
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117 |
5744 | 118 std::string fcn_file_name (void) const { return file_name; } |
119 | |
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120 octave_time time_parsed (void) const { return t_parsed; } |
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121 |
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122 octave_time time_checked (void) const { return t_checked; } |
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123 |
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124 octave_value subsref (const std::string& type, |
10313 | 125 const std::list<octave_value_list>& idx) |
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126 { |
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127 octave_value_list tmp = subsref (type, idx, 1); |
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128 return tmp.length () > 0 ? tmp(0) : octave_value (); |
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129 } |
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130 |
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131 octave_value_list subsref (const std::string& type, |
10313 | 132 const std::list<octave_value_list>& idx, |
133 int nargout); | |
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134 |
7336 | 135 octave_value_list |
136 do_multi_index_op (int nargout, const octave_value_list& args); | |
137 | |
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138 tree_statement_list *body (void) { return cmd_list; } |
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139 |
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140 void accept (tree_walker& tw); |
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141 |
5744 | 142 private: |
143 | |
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144 // The list of commands that make up the body of this function. |
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145 tree_statement_list *cmd_list; |
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146 |
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147 // The name of the file we parsed. |
5744 | 148 std::string file_name; |
149 | |
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150 // The time the file was parsed. |
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151 octave_time t_parsed; |
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152 |
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153 // The time the file was last checked to see if it needs to be |
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154 // parsed again. |
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155 octave_time t_checked; |
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156 |
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157 // Used to keep track of recursion depth. |
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158 int call_depth; |
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159 |
5744 | 160 // No copying! |
161 | |
162 octave_user_script (const octave_user_script& f); | |
163 | |
164 octave_user_script& operator = (const octave_user_script& f); | |
165 | |
166 DECLARE_OCTAVE_ALLOCATOR | |
167 | |
168 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA | |
169 }; | |
170 | |
171 // User-defined functions. | |
2974 | 172 |
173 class | |
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174 octave_user_function : public octave_user_code |
2974 | 175 { |
176 public: | |
177 | |
7336 | 178 octave_user_function (symbol_table::scope_id sid = -1, |
10313 | 179 tree_parameter_list *pl = 0, |
180 tree_parameter_list *rl = 0, | |
181 tree_statement_list *cl = 0); | |
2974 | 182 |
183 ~octave_user_function (void); | |
184 | |
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185 symbol_table::context_id active_context () const |
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186 { |
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187 return is_anonymous_function () |
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188 ? 0 : static_cast<symbol_table::context_id>(call_depth); |
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189 } |
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190 |
4654 | 191 octave_function *function_value (bool = false) { return this; } |
2974 | 192 |
4700 | 193 octave_user_function *user_function_value (bool = false) { return this; } |
194 | |
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195 octave_user_code *user_code_value (bool = false) { return this; } |
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196 |
2974 | 197 octave_user_function *define_param_list (tree_parameter_list *t); |
198 | |
199 octave_user_function *define_ret_list (tree_parameter_list *t); | |
200 | |
4343 | 201 void stash_fcn_file_name (const std::string& nm); |
2974 | 202 |
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203 void stash_fcn_location (int line, int col) |
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204 { |
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205 location_line = line; |
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206 location_column = col; |
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207 } |
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208 |
6323 | 209 void stash_parent_fcn_name (const std::string& p) { parent_name = p; } |
210 | |
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211 void stash_parent_fcn_scope (symbol_table::scope_id ps) { parent_scope = ps; } |
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212 |
3665 | 213 void stash_leading_comment (octave_comment_list *lc) { lead_comm = lc; } |
214 | |
215 void stash_trailing_comment (octave_comment_list *tc) { trail_comm = tc; } | |
216 | |
3325 | 217 void mark_fcn_file_up_to_date (const octave_time& t) { t_checked = t; } |
3165 | 218 |
3255 | 219 void stash_fcn_file_time (const octave_time& t) |
3165 | 220 { |
221 t_parsed = t; | |
222 mark_fcn_file_up_to_date (t); | |
223 } | |
2974 | 224 |
4346 | 225 std::string fcn_file_name (void) const { return file_name; } |
2974 | 226 |
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227 std::string profiler_name (void) const; |
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228 |
6323 | 229 std::string parent_fcn_name (void) const { return parent_name; } |
230 | |
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231 symbol_table::scope_id parent_fcn_scope (void) const { return parent_scope; } |
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232 |
7336 | 233 symbol_table::scope_id scope (void) { return local_scope; } |
234 | |
4346 | 235 octave_time time_parsed (void) const { return t_parsed; } |
2974 | 236 |
4346 | 237 octave_time time_checked (void) const { return t_checked; } |
3165 | 238 |
2974 | 239 void mark_as_system_fcn_file (void); |
240 | |
4346 | 241 bool is_system_fcn_file (void) const { return system_fcn_file; } |
2974 | 242 |
4748 | 243 bool is_user_function (void) const { return true; } |
244 | |
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245 void erase_subfunctions (void) |
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246 { |
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247 symbol_table::erase_subfunctions_in_scope (local_scope); |
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248 } |
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249 |
2974 | 250 bool takes_varargs (void) const; |
251 | |
5848 | 252 bool takes_var_return (void) const; |
2974 | 253 |
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254 void mark_as_private_function (const std::string& cname = std::string ()) |
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255 { |
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256 symbol_table::mark_subfunctions_in_scope_as_private (local_scope, cname); |
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257 |
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258 octave_function::mark_as_private_function (cname); |
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259 } |
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260 |
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261 void lock_subfunctions (void); |
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262 |
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263 void unlock_subfunctions (void); |
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264 |
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265 octave_value_list all_va_args (const octave_value_list& args); |
2974 | 266 |
4748 | 267 void stash_function_name (const std::string& s) { my_name = s; } |
2974 | 268 |
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269 void mark_as_subfunction (void) { subfunction = true; } |
4238 | 270 |
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271 bool is_subfunction (void) const { return subfunction; } |
4238 | 272 |
6149 | 273 void mark_as_inline_function (void) { inline_function = true; } |
274 | |
275 bool is_inline_function (void) const { return inline_function; } | |
276 | |
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277 void mark_as_anonymous_function (void) { anonymous_function = true; } |
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278 |
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279 bool is_anonymous_function (void) const { return anonymous_function; } |
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280 |
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281 bool is_anonymous_function_of_class |
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282 (const std::string& cname = std::string ()) const |
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283 { |
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284 return anonymous_function |
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285 ? (cname.empty () |
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286 ? (! dispatch_class ().empty ()) |
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287 : cname == dispatch_class ()) |
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288 : false; |
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289 } |
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290 |
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291 // If we are a special expression, then the function body consists of exactly |
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292 // one expression. The expression's result is the return value of the |
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293 // function. |
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294 bool is_special_expr (void) const |
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295 { |
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296 return is_inline_function () || is_anonymous_function (); |
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297 } |
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298 |
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299 bool is_nested_function (void) const { return nested_function; } |
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300 |
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301 void mark_as_nested_function (void) { nested_function = true; } |
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302 |
7336 | 303 void mark_as_class_constructor (void) { class_constructor = true; } |
304 | |
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305 bool is_class_constructor (const std::string& cname = std::string ()) const |
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306 { |
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307 return class_constructor |
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308 ? (cname.empty () ? true : cname == dispatch_class ()) : false; |
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309 } |
7336 | 310 |
311 void mark_as_class_method (void) { class_method = true; } | |
312 | |
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313 bool is_class_method (const std::string& cname = std::string ()) const |
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314 { |
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315 return class_method |
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316 ? (cname.empty () ? true : cname == dispatch_class ()) : false; |
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317 } |
7336 | 318 |
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319 octave_value subsref (const std::string& type, |
10313 | 320 const std::list<octave_value_list>& idx) |
4271 | 321 { |
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322 octave_value_list tmp = subsref (type, idx, 1); |
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323 return tmp.length () > 0 ? tmp(0) : octave_value (); |
4271 | 324 } |
325 | |
4247 | 326 octave_value_list subsref (const std::string& type, |
10313 | 327 const std::list<octave_value_list>& idx, |
328 int nargout); | |
3933 | 329 |
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330 octave_value_list subsref (const std::string& type, |
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331 const std::list<octave_value_list>& idx, |
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332 int nargout, const std::list<octave_lvalue>* lvalue_list); |
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333 |
3544 | 334 octave_value_list |
335 do_multi_index_op (int nargout, const octave_value_list& args); | |
2974 | 336 |
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337 octave_value_list |
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338 do_multi_index_op (int nargout, const octave_value_list& args, |
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339 const std::list<octave_lvalue>* lvalue_list); |
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340 |
2974 | 341 tree_parameter_list *parameter_list (void) { return param_list; } |
342 | |
343 tree_parameter_list *return_list (void) { return ret_list; } | |
344 | |
345 tree_statement_list *body (void) { return cmd_list; } | |
346 | |
3665 | 347 octave_comment_list *leading_comment (void) { return lead_comm; } |
348 | |
349 octave_comment_list *trailing_comment (void) { return trail_comm; } | |
350 | |
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351 // If is_special_expr is true, retrieve the sigular expression that forms the |
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352 // body. May be null (even if is_special_expr is true). |
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353 tree_expression *special_expr (void); |
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354 |
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355 bool subsasgn_optimization_ok (void); |
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356 |
2974 | 357 void accept (tree_walker& tw); |
358 | |
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359 template <class T> |
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360 bool local_protect (T& variable) |
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361 { |
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362 if (curr_unwind_protect_frame) |
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363 { |
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364 curr_unwind_protect_frame->protect_var (variable); |
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365 return true; |
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366 } |
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367 else |
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368 return false; |
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369 } |
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370 |
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371 #ifdef HAVE_LLVM |
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372 jit_function_info *get_info (void) { return jit_info; } |
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373 |
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374 void stash_info (jit_function_info *info) { jit_info = info; } |
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375 #endif |
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376 |
7336 | 377 #if 0 |
3933 | 378 void print_symtab_info (std::ostream& os) const; |
7336 | 379 #endif |
3933 | 380 |
2974 | 381 private: |
382 | |
383 // List of arguments for this function. These are local variables. | |
384 tree_parameter_list *param_list; | |
385 | |
386 // List of parameters we return. These are also local variables in | |
387 // this function. | |
388 tree_parameter_list *ret_list; | |
389 | |
390 // The list of commands that make up the body of this function. | |
391 tree_statement_list *cmd_list; | |
392 | |
3665 | 393 // The comments preceding the FUNCTION token. |
394 octave_comment_list *lead_comm; | |
395 | |
396 // The comments preceding the ENDFUNCTION token. | |
397 octave_comment_list *trail_comm; | |
398 | |
6323 | 399 // The name of the file we parsed. |
3523 | 400 std::string file_name; |
2974 | 401 |
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402 // Location where this function was defined. |
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403 int location_line; |
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404 int location_column; |
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405 |
6323 | 406 // The name of the parent function, if any. |
407 std::string parent_name; | |
408 | |
2974 | 409 // The time the file was parsed. |
3255 | 410 octave_time t_parsed; |
2974 | 411 |
3165 | 412 // The time the file was last checked to see if it needs to be |
413 // parsed again. | |
3255 | 414 octave_time t_checked; |
3165 | 415 |
2974 | 416 // True if this function came from a file that is considered to be a |
417 // system function. This affects whether we check the time stamp | |
418 // on the file to see if it has changed. | |
419 bool system_fcn_file; | |
420 | |
421 // Used to keep track of recursion depth. | |
422 int call_depth; | |
423 | |
424 // The number of arguments that have names. | |
425 int num_named_args; | |
426 | |
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427 // TRUE means this subfunction of a primary function. |
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428 bool subfunction; |
4238 | 429 |
6149 | 430 // TRUE means this is an inline function. |
431 bool inline_function; | |
432 | |
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433 // TRUE means this is an anonymous function. |
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434 bool anonymous_function; |
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435 |
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436 // TRUE means this is a nested function. (either a child or parent) |
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437 bool nested_function; |
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438 |
7336 | 439 // TRUE means this function is the constructor for class object. |
440 bool class_constructor; | |
441 | |
442 // TRUE means this function is a method for a class. | |
443 bool class_method; | |
444 | |
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445 // The scope of the parent function, if any. |
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446 symbol_table::scope_id parent_scope; |
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447 |
7336 | 448 symbol_table::scope_id local_scope; |
2974 | 449 |
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450 // pointer to the current unwind_protect frame of this function. |
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451 unwind_protect *curr_unwind_protect_frame; |
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452 |
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453 #ifdef HAVE_LLVM |
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454 jit_function_info *jit_info; |
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455 #endif |
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456 |
2974 | 457 void print_code_function_header (void); |
458 | |
459 void print_code_function_trailer (void); | |
460 | |
461 void bind_automatic_vars (const string_vector& arg_names, int nargin, | |
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462 int nargout, const octave_value_list& va_args, |
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463 const std::list<octave_lvalue> *lvalue_list); |
3219 | 464 |
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465 void restore_warning_states (void); |
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466 |
4645 | 467 // No copying! |
468 | |
469 octave_user_function (const octave_user_function& fn); | |
470 | |
471 octave_user_function& operator = (const octave_user_function& fn); | |
472 | |
4612 | 473 DECLARE_OCTAVE_ALLOCATOR |
3219 | 474 |
4612 | 475 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA |
2974 | 476 }; |
477 | |
478 #endif |