Mercurial > octave
annotate src/symtab.cc @ 14138:72c96de7a403 stable
maint: update copyright notices for 2012
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 02 Jan 2012 14:25:41 -0500 |
parents | 7dd7cccf0757 |
children | eff4a5933e28 d174210ce1ec |
rev | line source |
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1 | 1 /* |
2 | |
14138
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3 Copyright (C) 1993-2012 John W. Eaton |
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4 Copyright (C) 2009 VZLU Prague, a.s. |
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5 |
1 | 6 This file is part of Octave. |
7 | |
8 Octave is free software; you can redistribute it and/or modify it | |
9 under the terms of the GNU General Public License as published by the | |
7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
11 option) any later version. | |
1 | 12 |
13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 for more details. | |
17 | |
18 You should have received a copy of the GNU General Public License | |
7016 | 19 along with Octave; see the file COPYING. If not, see |
20 <http://www.gnu.org/licenses/>. | |
1 | 21 |
22 */ | |
23 | |
240 | 24 #ifdef HAVE_CONFIG_H |
1192 | 25 #include <config.h> |
1 | 26 #endif |
27 | |
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28 #include "file-ops.h" |
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29 #include "file-stat.h" |
7336 | 30 #include "oct-env.h" |
31 #include "oct-time.h" | |
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32 #include "singleton-cleanup.h" |
1755 | 33 |
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34 #include "debug.h" |
3308 | 35 #include "defun.h" |
7336 | 36 #include "dirfns.h" |
37 #include "input.h" | |
38 #include "load-path.h" | |
39 #include "ov-fcn.h" | |
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40 #include "ov-usr-fcn.h" |
7336 | 41 #include "pager.h" |
42 #include "parse.h" | |
43 #include "pt-arg-list.h" | |
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44 #include "symtab.h" |
7336 | 45 #include "unwind-prot.h" |
1 | 46 #include "utils.h" |
7336 | 47 |
48 symbol_table *symbol_table::instance = 0; | |
1 | 49 |
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50 symbol_table::scope_id_cache *symbol_table::scope_id_cache::instance = 0; |
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51 |
7336 | 52 std::map<symbol_table::scope_id, symbol_table*> symbol_table::all_instances; |
4913 | 53 |
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54 std::map<std::string, octave_value> symbol_table::global_table; |
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55 |
7336 | 56 std::map<std::string, symbol_table::fcn_info> symbol_table::fcn_table; |
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58 std::map<std::string, std::set<std::string> > symbol_table::class_precedence_table; |
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59 |
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60 std::map<std::string, std::list<std::string> > symbol_table::parent_map; |
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61 |
7336 | 62 const symbol_table::scope_id symbol_table::xglobal_scope = 0; |
63 const symbol_table::scope_id symbol_table::xtop_scope = 1; | |
4238 | 64 |
7336 | 65 symbol_table::scope_id symbol_table::xcurrent_scope = 1; |
3308 | 66 |
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67 symbol_table::context_id symbol_table::xcurrent_context = 0; |
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68 |
7336 | 69 // Should Octave always check to see if function files have changed |
70 // since they were last compiled? | |
71 static int Vignore_function_time_stamp = 1; | |
3355 | 72 |
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73 void |
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74 symbol_table::scope_id_cache::create_instance (void) |
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75 { |
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76 instance = new scope_id_cache (); |
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77 |
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78 singleton_cleanup_list::add (cleanup_instance); |
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79 } |
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80 |
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81 void |
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82 symbol_table::symbol_record::symbol_record_rep::dump |
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83 (std::ostream& os, const std::string& prefix) const |
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84 { |
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85 octave_value val = varval (xcurrent_context); |
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86 |
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87 os << prefix << name; |
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88 |
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89 if (val.is_defined ()) |
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90 { |
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91 os << " [" |
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92 << (is_local () ? "l" : "") |
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93 << (is_automatic () ? "a" : "") |
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94 << (is_formal () ? "f" : "") |
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95 << (is_hidden () ? "h" : "") |
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96 << (is_inherited () ? "i" : "") |
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97 << (is_global () ? "g" : "") |
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98 << (is_persistent () ? "p" : "") |
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99 << "] "; |
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100 val.dump (os); |
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101 } |
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102 |
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103 os << "\n"; |
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104 } |
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105 |
7336 | 106 octave_value |
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107 symbol_table::symbol_record::find (const octave_value_list& args) const |
7336 | 108 { |
109 octave_value retval; | |
3355 | 110 |
7336 | 111 if (is_global ()) |
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112 retval = symbol_table::global_varref (name ()); |
7336 | 113 else |
114 { | |
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115 retval = varval (); |
7336 | 116 |
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117 if (retval.is_undefined ()) |
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118 { |
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119 // Use cached fcn_info pointer if possible. |
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120 if (rep->finfo) |
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121 retval = rep->finfo->find (args); |
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122 else |
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123 { |
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124 retval = symbol_table::find_function (name (), args); |
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125 |
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126 if (retval.is_defined ()) |
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127 rep->finfo = get_fcn_info (name ()); |
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128 } |
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129 } |
7336 | 130 } |
131 | |
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132 return retval; |
3355 | 133 } |
134 | |
7336 | 135 // Check the load path to see if file that defined this is still |
136 // visible. If the file is no longer visible, then erase the | |
137 // definition and move on. If the file is visible, then we also | |
138 // need to check to see whether the file has changed since the the | |
139 // function was loaded/parsed. However, this check should only | |
140 // happen once per prompt (for files found from relative path | |
141 // elements, we also check if the working directory has changed | |
142 // since the last time the function was loaded/parsed). | |
143 // | |
144 // FIXME -- perhaps this should be done for all loaded functions when | |
145 // the prompt is printed or the directory has changed, and then we | |
146 // would not check for it when finding symbol definitions. | |
3355 | 147 |
7336 | 148 static inline bool |
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149 load_out_of_date_fcn (const std::string& ff, const std::string& dir_name, |
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150 octave_value& function, |
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151 const std::string& dispatch_type = std::string ()) |
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152 { |
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153 bool retval = false; |
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154 |
9151 | 155 octave_function *fcn = load_fcn_from_file (ff, dir_name, dispatch_type); |
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156 |
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157 if (fcn) |
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158 { |
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159 retval = true; |
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160 |
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161 function = octave_value (fcn); |
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162 } |
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163 else |
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164 function = octave_value (); |
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165 |
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166 return retval; |
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167 } |
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168 |
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169 bool |
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170 out_of_date_check (octave_value& function, |
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171 const std::string& dispatch_type, |
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172 bool check_relative) |
1 | 173 { |
3013 | 174 bool retval = false; |
2949 | 175 |
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176 octave_function *fcn = function.function_value (true); |
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177 |
7336 | 178 if (fcn) |
220 | 179 { |
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180 // FIXME -- we need to handle subfunctions properly here. |
4914 | 181 |
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182 if (! fcn->is_subfunction ()) |
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183 { |
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184 std::string ff = fcn->fcn_file_name (); |
4914 | 185 |
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186 if (! ff.empty ()) |
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187 { |
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188 octave_time tc = fcn->time_checked (); |
4913 | 189 |
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190 bool relative = check_relative && fcn->is_relative (); |
3013 | 191 |
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192 if (tc < Vlast_prompt_time |
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193 || (relative && tc < Vlast_chdir_time)) |
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194 { |
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195 bool clear_breakpoints = false; |
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196 std::string nm = fcn->name (); |
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197 |
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198 bool is_same_file = false; |
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200 std::string file; |
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201 std::string dir_name; |
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203 if (check_relative) |
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204 { |
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205 int nm_len = nm.length (); |
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207 if (octave_env::absolute_pathname (nm) |
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208 && ((nm_len > 4 && (nm.substr (nm_len-4) == ".oct" |
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209 || nm.substr (nm_len-4) == ".mex")) |
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210 || (nm_len > 2 && nm.substr (nm_len-2) == ".m"))) |
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211 file = nm; |
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212 else |
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213 { |
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214 // We don't want to make this an absolute name, |
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215 // because load_fcn_file looks at the name to |
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216 // decide whether it came from a relative lookup. |
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217 |
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218 if (! dispatch_type.empty ()) |
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219 { |
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220 file = load_path::find_method (dispatch_type, nm, |
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221 dir_name); |
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222 |
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223 if (file.empty ()) |
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224 { |
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225 const std::list<std::string>& plist |
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226 = symbol_table::parent_classes (dispatch_type); |
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227 std::list<std::string>::const_iterator it |
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228 = plist.begin (); |
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229 |
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230 while (it != plist.end ()) |
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231 { |
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232 file = load_path::find_method (*it, nm, dir_name); |
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233 if (! file.empty ()) |
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234 break; |
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235 |
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236 it++; |
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237 } |
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238 } |
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239 } |
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240 |
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241 // Maybe it's an autoload? |
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242 if (file.empty ()) |
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243 file = lookup_autoload (nm); |
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244 |
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245 if (file.empty ()) |
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246 file = load_path::find_fcn (nm, dir_name); |
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247 } |
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248 |
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249 if (! file.empty ()) |
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250 is_same_file = same_file (file, ff); |
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251 } |
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252 else |
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253 { |
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254 is_same_file = true; |
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255 file = ff; |
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256 } |
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258 if (file.empty ()) |
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259 { |
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260 // Can't see this function from current |
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261 // directory, so we should clear it. |
195 | 262 |
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263 function = octave_value (); |
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264 |
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265 clear_breakpoints = true; |
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266 } |
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267 else if (is_same_file) |
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268 { |
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269 // Same file. If it is out of date, then reload it. |
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270 |
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271 octave_time ottp = fcn->time_parsed (); |
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272 time_t tp = ottp.unix_time (); |
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273 |
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274 fcn->mark_fcn_file_up_to_date (octave_time ()); |
1 | 275 |
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276 if (! (Vignore_function_time_stamp == 2 |
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277 || (Vignore_function_time_stamp |
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278 && fcn->is_system_fcn_file ()))) |
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279 { |
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280 file_stat fs (ff); |
572 | 281 |
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282 if (fs) |
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283 { |
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284 if (fs.is_newer (tp)) |
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285 { |
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286 retval = load_out_of_date_fcn (ff, dir_name, |
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287 function, |
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288 dispatch_type); |
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289 |
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290 clear_breakpoints = true; |
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291 } |
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292 } |
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293 else |
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294 { |
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295 function = octave_value (); |
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296 |
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297 clear_breakpoints = true; |
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298 } |
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299 } |
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300 } |
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301 else |
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302 { |
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303 // Not the same file, so load the new file in |
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304 // place of the old. |
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305 |
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306 retval = load_out_of_date_fcn (file, dir_name, function, |
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307 dispatch_type); |
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308 |
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309 clear_breakpoints = true; |
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310 } |
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311 |
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312 // If the function has been replaced then clear any |
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313 // breakpoints associated with it |
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314 if (clear_breakpoints) |
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315 bp_table::remove_all_breakpoints_in_file (nm, true); |
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316 } |
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317 } |
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318 } |
4009 | 319 } |
320 | |
321 return retval; | |
322 } | |
323 | |
7336 | 324 octave_value |
325 symbol_table::fcn_info::fcn_info_rep::load_private_function | |
326 (const std::string& dir_name) | |
327 { | |
328 octave_value retval; | |
329 | |
330 std::string file_name = load_path::find_private_fcn (dir_name, name); | |
331 | |
332 if (! file_name.empty ()) | |
4009 | 333 { |
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334 octave_function *fcn = load_fcn_from_file (file_name, dir_name); |
4009 | 335 |
7336 | 336 if (fcn) |
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337 { |
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338 std::string class_name; |
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339 |
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340 size_t pos = dir_name.find_last_of (file_ops::dir_sep_chars ()); |
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341 |
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342 if (pos != std::string::npos) |
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343 { |
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344 std::string tmp = dir_name.substr (pos+1); |
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345 |
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346 if (tmp[0] == '@') |
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347 class_name = tmp.substr (1); |
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348 } |
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349 |
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350 fcn->mark_as_private_function (class_name); |
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351 |
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352 retval = octave_value (fcn); |
4009 | 353 |
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354 private_functions[dir_name] = retval; |
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355 } |
4009 | 356 } |
357 | |
358 return retval; | |
359 } | |
360 | |
7336 | 361 octave_value |
362 symbol_table::fcn_info::fcn_info_rep::load_class_constructor (void) | |
4009 | 363 { |
7336 | 364 octave_value retval; |
365 | |
366 std::string dir_name; | |
4009 | 367 |
7336 | 368 std::string file_name = load_path::find_method (name, name, dir_name); |
369 | |
370 if (! file_name.empty ()) | |
4009 | 371 { |
7336 | 372 octave_function *fcn = load_fcn_from_file (file_name, dir_name, name); |
4009 | 373 |
7336 | 374 if (fcn) |
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375 { |
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376 retval = octave_value (fcn); |
7336 | 377 |
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378 class_constructors[name] = retval; |
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379 } |
7336 | 380 } |
381 | |
382 return retval; | |
383 } | |
384 | |
385 octave_value | |
386 symbol_table::fcn_info::fcn_info_rep::load_class_method | |
387 (const std::string& dispatch_type) | |
388 { | |
389 octave_value retval; | |
4009 | 390 |
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391 if (name == dispatch_type) |
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392 retval = load_class_constructor (); |
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393 else |
7336 | 394 { |
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395 std::string dir_name; |
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396 |
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397 std::string file_name = load_path::find_method (dispatch_type, name, |
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398 dir_name); |
4009 | 399 |
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400 if (! file_name.empty ()) |
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401 { |
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402 octave_function *fcn = load_fcn_from_file (file_name, dir_name, |
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403 dispatch_type); |
7336 | 404 |
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405 if (fcn) |
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406 { |
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407 retval = octave_value (fcn); |
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408 |
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409 class_methods[dispatch_type] = retval; |
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410 } |
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411 } |
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412 |
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413 if (retval.is_undefined ()) |
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414 { |
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415 // Search parent classes |
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416 |
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417 const std::list<std::string>& plist = parent_classes (dispatch_type); |
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418 |
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419 std::list<std::string>::const_iterator it = plist.begin (); |
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420 |
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421 while (it != plist.end ()) |
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422 { |
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423 retval = find_method (*it); |
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424 |
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425 if (retval.is_defined ()) |
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426 { |
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427 class_methods[dispatch_type] = retval; |
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428 break; |
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429 } |
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430 |
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431 it++; |
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432 } |
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433 } |
4009 | 434 } |
435 | |
436 return retval; | |
437 } | |
438 | |
7336 | 439 void |
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440 symbol_table::fcn_info::fcn_info_rep:: mark_subfunction_in_scope_as_private |
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441 (scope_id scope, const std::string& class_name) |
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442 { |
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443 scope_val_iterator p = subfunctions.find (scope); |
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444 |
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445 if (p != subfunctions.end ()) |
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446 { |
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447 octave_function *fcn = p->second.function_value (); |
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448 |
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449 if (fcn) |
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450 fcn->mark_as_private_function (class_name); |
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451 } |
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452 } |
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453 |
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454 void |
7336 | 455 symbol_table::fcn_info::fcn_info_rep::print_dispatch (std::ostream& os) const |
1 | 456 { |
7336 | 457 if (dispatch_map.empty ()) |
458 os << "dispatch: " << name << " is not overloaded" << std::endl; | |
459 else | |
460 { | |
461 os << "Overloaded function " << name << ":\n\n"; | |
462 | |
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463 for (dispatch_map_const_iterator p = dispatch_map.begin (); |
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464 p != dispatch_map.end (); p++) |
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465 os << " " << name << " (" << p->first << ", ...) -> " |
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466 << p->second << " (" << p->first << ", ...)\n"; |
3013 | 467 |
7336 | 468 os << std::endl; |
469 } | |
470 } | |
471 | |
472 std::string | |
473 symbol_table::fcn_info::fcn_info_rep::help_for_dispatch (void) const | |
474 { | |
475 std::string retval; | |
476 | |
477 if (! dispatch_map.empty ()) | |
1 | 478 { |
7336 | 479 retval = "Overloaded function:\n\n"; |
480 | |
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481 for (dispatch_map_const_iterator p = dispatch_map.begin (); |
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482 p != dispatch_map.end (); p++) |
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483 retval += " " + p->second + " (" + p->first + ", ...)\n\n"; |
7336 | 484 } |
485 | |
486 return retval; | |
487 } | |
488 | |
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489 // :-) JWE, can you parse this? Returns a 2D array with second dimension equal |
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490 // to btyp_num_types (static constant). Only the leftmost dimension can be |
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491 // variable in C/C++. Typedefs are boring. |
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492 |
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493 static builtin_type_t (*build_sup_table (void))[btyp_num_types] |
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494 { |
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495 static builtin_type_t sup_table[btyp_num_types][btyp_num_types]; |
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496 for (int i = 0; i < btyp_num_types; i++) |
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497 for (int j = 0; j < btyp_num_types; j++) |
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498 { |
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499 builtin_type_t ityp = static_cast<builtin_type_t> (i); |
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500 builtin_type_t jtyp = static_cast<builtin_type_t> (j); |
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501 // FIXME: Is this really right? |
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502 bool use_j = |
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503 (jtyp == btyp_func_handle || ityp == btyp_bool |
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504 || (btyp_isarray (ityp) |
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505 && (! btyp_isarray (jtyp) |
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506 || (btyp_isinteger (jtyp) && ! btyp_isinteger (ityp)) |
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507 || ((ityp == btyp_double || ityp == btyp_complex || ityp == btyp_char) |
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508 && (jtyp == btyp_float || jtyp == btyp_float_complex))))); |
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509 |
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510 sup_table[i][j] = use_j ? jtyp : ityp; |
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511 } |
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512 |
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513 return sup_table; |
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514 } |
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515 |
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516 std::string |
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517 get_dispatch_type (const octave_value_list& args, |
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518 builtin_type_t& builtin_type) |
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519 { |
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520 static builtin_type_t (*sup_table)[btyp_num_types] = build_sup_table (); |
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521 std::string dispatch_type; |
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522 |
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523 int n = args.length (); |
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524 |
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525 if (n > 0) |
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526 { |
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527 int i = 0; |
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528 builtin_type = args(0).builtin_type (); |
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529 if (builtin_type != btyp_unknown) |
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530 { |
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531 for (i = 1; i < n; i++) |
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532 { |
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533 builtin_type_t bti = args(i).builtin_type (); |
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534 if (bti != btyp_unknown) |
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535 builtin_type = sup_table[builtin_type][bti]; |
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536 else |
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537 { |
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538 builtin_type = btyp_unknown; |
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539 break; |
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540 } |
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541 } |
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542 } |
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543 |
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544 if (builtin_type == btyp_unknown) |
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545 { |
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546 // There's a non-builtin class in the argument list. |
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547 dispatch_type = args(i).class_name (); |
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548 |
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549 for (int j = i+1; j < n; j++) |
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550 { |
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551 octave_value arg = args(j); |
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552 |
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553 if (arg.builtin_type () == btyp_unknown) |
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554 { |
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555 std::string cname = arg.class_name (); |
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556 |
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557 // Only switch to type of ARG if it is marked superior |
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558 // to the current DISPATCH_TYPE. |
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559 if (! symbol_table::is_superiorto (dispatch_type, cname) |
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560 && symbol_table::is_superiorto (cname, dispatch_type)) |
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561 dispatch_type = cname; |
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562 } |
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563 } |
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564 } |
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565 else |
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566 dispatch_type = btyp_class_name[builtin_type]; |
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567 } |
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568 else |
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569 builtin_type = btyp_unknown; |
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570 |
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571 return dispatch_type; |
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572 } |
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573 |
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574 std::string |
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575 get_dispatch_type (const octave_value_list& args) |
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576 { |
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577 builtin_type_t builtin_type; |
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578 return get_dispatch_type (args, builtin_type); |
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579 } |
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580 |
7336 | 581 // Find the definition of NAME according to the following precedence |
582 // list: | |
583 // | |
584 // variable | |
585 // subfunction | |
586 // private function | |
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587 // class method |
7336 | 588 // class constructor |
589 // legacy dispatch | |
590 // command-line function | |
591 // autoload function | |
592 // function on the path | |
593 // built-in function | |
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594 // |
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595 // Matlab documentation states that constructors have higher precedence |
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596 // than methods, but that does not seem to be the case. |
3013 | 597 |
7336 | 598 octave_value |
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599 symbol_table::fcn_info::fcn_info_rep::find (const octave_value_list& args, |
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600 bool local_funcs) |
7336 | 601 { |
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602 octave_value retval = xfind (args, local_funcs); |
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603 |
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604 if (! (error_state || retval.is_defined ())) |
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605 { |
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606 // It is possible that the user created a file on the fly since |
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607 // the last prompt or chdir, so try updating the load path and |
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608 // searching again. |
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609 |
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610 load_path::update (); |
7336 | 611 |
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612 retval = xfind (args, local_funcs); |
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613 } |
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614 |
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615 return retval; |
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616 } |
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617 |
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618 octave_value |
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619 symbol_table::fcn_info::fcn_info_rep::xfind (const octave_value_list& args, |
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620 bool local_funcs) |
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621 { |
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622 if (local_funcs) |
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623 { |
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624 // Subfunction. I think it only makes sense to check for |
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625 // subfunctions if we are currently executing a function defined |
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626 // from a .m file. |
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627 |
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628 scope_val_iterator r = subfunctions.find (xcurrent_scope); |
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629 |
9639
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630 octave_user_function *curr_fcn = symbol_table::get_curr_fcn (); |
7336 | 631 |
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632 if (r != subfunctions.end ()) |
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633 { |
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634 // FIXME -- out-of-date check here. |
7336 | 635 |
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636 return r->second; |
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637 } |
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638 else |
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639 { |
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640 if (curr_fcn) |
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641 { |
11263
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642 // FIXME -- maybe it would be better if we could just get |
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643 // a pointer to the parent function so we would have |
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644 // access to all info about it instead of only being able |
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645 // to query the current function for specific bits of info |
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646 // about its parent function? |
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647 |
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648 scope_id pscope = curr_fcn->parent_fcn_scope (); |
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649 |
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650 if (pscope > 0) |
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651 { |
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652 r = subfunctions.find (pscope); |
7336 | 653 |
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654 if (r != subfunctions.end ()) |
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655 { |
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656 // FIXME -- out-of-date check here. |
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657 |
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658 return r->second; |
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659 } |
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660 } |
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661 } |
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662 } |
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663 |
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664 // Private function. |
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665 |
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666 if (curr_fcn) |
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667 { |
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668 std::string dir_name = curr_fcn->dir_name (); |
7968
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669 |
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670 if (! dir_name.empty ()) |
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671 { |
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672 str_val_iterator q = private_functions.find (dir_name); |
3013 | 673 |
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674 if (q == private_functions.end ()) |
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675 { |
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676 octave_value val = load_private_function (dir_name); |
1 | 677 |
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678 if (val.is_defined ()) |
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679 return val; |
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680 } |
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681 else |
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682 { |
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683 octave_value& fval = q->second; |
4913 | 684 |
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685 if (fval.is_defined ()) |
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686 out_of_date_check (fval, "", false); |
4913 | 687 |
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688 if (fval.is_defined ()) |
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689 return fval; |
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690 else |
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691 { |
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692 octave_value val = load_private_function (dir_name); |
4913 | 693 |
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694 if (val.is_defined ()) |
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695 return val; |
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696 } |
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697 } |
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698 } |
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699 } |
4913 | 700 } |
701 | |
13147
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|
702 // Class methods. |
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|
703 |
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|
704 if (! args.empty ()) |
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|
705 { |
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|
706 std::string dispatch_type = get_dispatch_type (args); |
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707 |
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708 octave_value fcn = find_method (dispatch_type); |
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709 |
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710 if (fcn.is_defined ()) |
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711 return fcn; |
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|
712 } |
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713 |
7336 | 714 // Class constructors. The class name and function name are the same. |
4913 | 715 |
7336 | 716 str_val_iterator q = class_constructors.find (name); |
4913 | 717 |
7336 | 718 if (q == class_constructors.end ()) |
719 { | |
720 octave_value val = load_class_constructor (); | |
3013 | 721 |
7336 | 722 if (val.is_defined ()) |
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|
723 return val; |
7336 | 724 } |
725 else | |
1 | 726 { |
7336 | 727 octave_value& fval = q->second; |
3013 | 728 |
7336 | 729 if (fval.is_defined ()) |
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730 out_of_date_check (fval, name); |
867 | 731 |
7336 | 732 if (fval.is_defined ()) |
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733 return fval; |
7336 | 734 else |
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|
735 { |
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736 octave_value val = load_class_constructor (); |
867 | 737 |
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|
738 if (val.is_defined ()) |
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|
739 return val; |
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|
740 } |
1 | 741 } |
1755 | 742 |
11586
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|
743 // Legacy dispatch. |
7336 | 744 |
9445
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745 if (! args.empty () && ! dispatch_map.empty ()) |
7336 | 746 { |
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747 std::string dispatch_type = args(0).type_name (); |
7336 | 748 |
749 std::string fname; | |
750 | |
751 dispatch_map_iterator p = dispatch_map.find (dispatch_type); | |
752 | |
753 if (p == dispatch_map.end ()) | |
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754 p = dispatch_map.find ("any"); |
3013 | 755 |
7336 | 756 if (p != dispatch_map.end ()) |
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|
757 { |
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|
758 fname = p->second; |
7336 | 759 |
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|
760 octave_value fcn |
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761 = symbol_table::find_function (fname, args); |
7336 | 762 |
10315
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|
763 if (fcn.is_defined ()) |
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|
764 return fcn; |
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|
765 } |
7336 | 766 } |
767 | |
768 // Command-line function. | |
769 | |
770 if (cmdline_function.is_defined ()) | |
771 return cmdline_function; | |
772 | |
773 // Autoload? | |
3013 | 774 |
7336 | 775 octave_value fcn = find_autoload (); |
776 | |
777 if (fcn.is_defined ()) | |
778 return fcn; | |
779 | |
780 // Function on the path. | |
781 | |
782 fcn = find_user_function (); | |
783 | |
784 if (fcn.is_defined ()) | |
785 return fcn; | |
786 | |
8691
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|
787 // Built-in function (might be undefined). |
3145 | 788 |
8691
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789 return built_in_function; |
3013 | 790 } |
1 | 791 |
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|
792 // Find the definition of NAME according to the following precedence |
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793 // list: |
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|
794 // |
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|
795 // built-in function |
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|
796 // function on the path |
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|
797 // autoload function |
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|
798 // command-line function |
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799 // private function |
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|
800 // subfunction |
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|
801 |
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|
802 // This function is used to implement the "builtin" function, which |
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|
803 // searches for "built-in" functions. In Matlab, "builtin" only |
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|
804 // returns functions that are actually built-in to the interpreter. |
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805 // But since the list of built-in functions is different in Octave and |
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806 // Matlab, we also search up the precedence list until we find |
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807 // something that matches. Note that we are only searching by name, |
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808 // so class methods, constructors, and legacy dispatch functions are |
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809 // skipped. |
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810 |
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811 octave_value |
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812 symbol_table::fcn_info::fcn_info_rep::builtin_find (void) |
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813 { |
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|
814 octave_value retval = x_builtin_find (); |
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815 |
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816 if (! retval.is_defined ()) |
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|
817 { |
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818 // It is possible that the user created a file on the fly since |
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819 // the last prompt or chdir, so try updating the load path and |
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820 // searching again. |
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|
821 |
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|
822 load_path::update (); |
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|
823 |
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824 retval = x_builtin_find (); |
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|
825 } |
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|
826 |
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|
827 return retval; |
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|
828 } |
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|
829 |
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|
830 octave_value |
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831 symbol_table::fcn_info::fcn_info_rep::x_builtin_find (void) |
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|
832 { |
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|
833 // Built-in function. |
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834 if (built_in_function.is_defined ()) |
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835 return built_in_function; |
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|
836 |
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|
837 // Function on the path. |
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|
838 |
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839 octave_value fcn = find_user_function (); |
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840 |
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|
841 if (fcn.is_defined ()) |
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|
842 return fcn; |
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|
843 |
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844 // Autoload? |
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845 |
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846 fcn = find_autoload (); |
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|
847 |
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848 if (fcn.is_defined ()) |
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849 return fcn; |
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|
850 |
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|
851 // Command-line function. |
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|
852 |
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|
853 if (cmdline_function.is_defined ()) |
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|
854 return cmdline_function; |
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|
855 |
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|
856 // Private function. |
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|
857 |
9639
8d79f36ebdde
store scope->function pointer
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|
858 octave_user_function *curr_fcn = symbol_table::get_curr_fcn (); |
9444
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|
859 |
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|
860 if (curr_fcn) |
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|
861 { |
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|
862 std::string dir_name = curr_fcn->dir_name (); |
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|
863 |
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|
864 if (! dir_name.empty ()) |
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|
865 { |
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|
866 str_val_iterator q = private_functions.find (dir_name); |
9444
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|
867 |
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868 if (q == private_functions.end ()) |
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|
869 { |
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870 octave_value val = load_private_function (dir_name); |
9444
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|
871 |
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|
872 if (val.is_defined ()) |
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|
873 return val; |
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|
874 } |
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|
875 else |
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|
876 { |
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|
877 octave_value& fval = q->second; |
9444
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diff
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|
878 |
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|
879 if (fval.is_defined ()) |
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|
880 out_of_date_check (fval); |
9444
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improve behavior of builtin
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|
881 |
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882 if (fval.is_defined ()) |
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|
883 return fval; |
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|
884 else |
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|
885 { |
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886 octave_value val = load_private_function (dir_name); |
9444
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improve behavior of builtin
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diff
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|
887 |
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|
888 if (val.is_defined ()) |
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|
889 return val; |
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|
890 } |
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|
891 } |
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|
892 } |
9444
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improve behavior of builtin
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diff
changeset
|
893 } |
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improve behavior of builtin
John W. Eaton <jwe@octave.org>
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diff
changeset
|
894 |
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improve behavior of builtin
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diff
changeset
|
895 // Subfunction. I think it only makes sense to check for |
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improve behavior of builtin
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diff
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|
896 // subfunctions if we are currently executing a function defined |
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improve behavior of builtin
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diff
changeset
|
897 // from a .m file. |
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improve behavior of builtin
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diff
changeset
|
898 |
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improve behavior of builtin
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diff
changeset
|
899 scope_val_iterator r = subfunctions.find (xcurrent_scope); |
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improve behavior of builtin
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|
900 |
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diff
changeset
|
901 if (r != subfunctions.end ()) |
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improve behavior of builtin
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diff
changeset
|
902 { |
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improve behavior of builtin
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changeset
|
903 // FIXME -- out-of-date check here. |
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diff
changeset
|
904 |
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diff
changeset
|
905 return r->second; |
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improve behavior of builtin
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diff
changeset
|
906 } |
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diff
changeset
|
907 else if (curr_fcn) |
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diff
changeset
|
908 { |
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improve behavior of builtin
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|
909 scope_id pscope = curr_fcn->parent_fcn_scope (); |
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improve behavior of builtin
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diff
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|
910 |
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improve behavior of builtin
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diff
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|
911 if (pscope > 0) |
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|
912 { |
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913 r = subfunctions.find (pscope); |
9444
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|
914 |
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915 if (r != subfunctions.end ()) |
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|
916 { |
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917 // FIXME -- out-of-date check here. |
9444
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|
918 |
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|
919 return r->second; |
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|
920 } |
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|
921 } |
9444
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|
922 } |
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|
923 |
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|
924 return octave_value (); |
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|
925 } |
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|
926 |
7336 | 927 octave_value |
928 symbol_table::fcn_info::fcn_info_rep::find_method (const std::string& dispatch_type) | |
4913 | 929 { |
7336 | 930 octave_value retval; |
4913 | 931 |
7336 | 932 str_val_iterator q = class_methods.find (dispatch_type); |
4913 | 933 |
7336 | 934 if (q == class_methods.end ()) |
935 { | |
936 octave_value val = load_class_method (dispatch_type); | |
4913 | 937 |
7336 | 938 if (val.is_defined ()) |
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939 return val; |
7336 | 940 } |
941 else | |
942 { | |
943 octave_value& fval = q->second; | |
4913 | 944 |
7336 | 945 if (fval.is_defined ()) |
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|
946 out_of_date_check (fval, dispatch_type); |
7336 | 947 |
948 if (fval.is_defined ()) | |
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949 return fval; |
4913 | 950 else |
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951 { |
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952 octave_value val = load_class_method (dispatch_type); |
7336 | 953 |
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954 if (val.is_defined ()) |
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955 return val; |
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|
956 } |
4913 | 957 } |
958 | |
7336 | 959 return retval; |
4913 | 960 } |
961 | |
7336 | 962 octave_value |
963 symbol_table::fcn_info::fcn_info_rep::find_autoload (void) | |
4913 | 964 { |
7336 | 965 octave_value retval; |
4913 | 966 |
7336 | 967 // Autoloaded function. |
4913 | 968 |
7336 | 969 if (autoload_function.is_defined ()) |
9509
c5330ef7aecd
fix handles to private functions, simplify out-of-date checks in symtab
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
970 out_of_date_check (autoload_function); |
4913 | 971 |
7336 | 972 if (! autoload_function.is_defined ()) |
973 { | |
974 std::string file_name = lookup_autoload (name); | |
4913 | 975 |
7336 | 976 if (! file_name.empty ()) |
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|
977 { |
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changeset
|
978 size_t pos = file_name.find_last_of (file_ops::dir_sep_chars ()); |
4913 | 979 |
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980 std::string dir_name = file_name.substr (0, pos); |
4913 | 981 |
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982 octave_function *fcn = load_fcn_from_file (file_name, dir_name, |
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983 "", name, true); |
4913 | 984 |
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985 if (fcn) |
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986 autoload_function = octave_value (fcn); |
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987 } |
4913 | 988 } |
989 | |
7336 | 990 return autoload_function; |
991 } | |
4914 | 992 |
7336 | 993 octave_value |
994 symbol_table::fcn_info::fcn_info_rep::find_user_function (void) | |
995 { | |
996 // Function on the path. | |
4913 | 997 |
7336 | 998 if (function_on_path.is_defined ()) |
9509
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999 out_of_date_check (function_on_path); |
4913 | 1000 |
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1001 if (! (error_state || function_on_path.is_defined ())) |
7336 | 1002 { |
1003 std::string dir_name; | |
4913 | 1004 |
7336 | 1005 std::string file_name = load_path::find_fcn (name, dir_name); |
4913 | 1006 |
7336 | 1007 if (! file_name.empty ()) |
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1008 { |
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1009 octave_function *fcn = load_fcn_from_file (file_name, dir_name); |
4913 | 1010 |
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1011 if (fcn) |
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1012 function_on_path = octave_value (fcn); |
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1013 } |
4913 | 1014 } |
1015 | |
7336 | 1016 return function_on_path; |
1017 } | |
1018 | |
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1019 // Insert INF_CLASS in the set of class names that are considered |
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1020 // inferior to SUP_CLASS. Return FALSE if INF_CLASS is currently |
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1021 // marked as superior to SUP_CLASS. |
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1022 |
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1023 bool |
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1024 symbol_table::set_class_relationship (const std::string& sup_class, |
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1025 const std::string& inf_class) |
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1026 { |
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1027 class_precedence_table_const_iterator p |
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1028 = class_precedence_table.find (inf_class); |
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1029 |
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1030 if (p != class_precedence_table.end ()) |
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1031 { |
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1032 const std::set<std::string>& inferior_classes = p->second; |
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1033 |
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1034 std::set<std::string>::const_iterator q |
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1035 = inferior_classes.find (sup_class); |
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1036 |
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1037 if (q != inferior_classes.end ()) |
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1038 return false; |
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1039 } |
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1040 |
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1041 class_precedence_table[sup_class].insert (inf_class); |
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1042 |
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1043 return true; |
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1044 } |
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1045 |
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1046 // Has class A been marked as superior to class B? Also returns |
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1047 // TRUE if B has been marked as inferior to A, since we only keep |
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1048 // one table, and convert inferiort information to a superiorto |
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1049 // relationship. Two calls are required to determine whether there |
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1050 // is no relationship between two classes: |
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1051 // |
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1052 // if (symbol_table::is_superiorto (a, b)) |
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1053 // // A is superior to B, or B has been marked inferior to A. |
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1054 // else if (symbol_table::is_superiorto (b, a)) |
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1055 // // B is superior to A, or A has been marked inferior to B. |
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1056 // else |
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1057 // // No relation. |
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1058 |
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1059 bool |
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1060 symbol_table::is_superiorto (const std::string& a, const std::string& b) |
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1061 { |
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1062 bool retval = false; |
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1063 |
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1064 class_precedence_table_const_iterator p = class_precedence_table.find (a); |
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1065 |
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1066 if (p != class_precedence_table.end ()) |
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1067 { |
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1068 const std::set<std::string>& inferior_classes = p->second; |
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1069 std::set<std::string>::const_iterator q = inferior_classes.find (b); |
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1070 |
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1071 if (q != inferior_classes.end ()) |
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1072 retval = true; |
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1073 } |
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1074 |
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1075 return retval; |
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1076 } |
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1077 |
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1078 static std::string |
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1079 fcn_file_name (const octave_value& fcn) |
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1080 { |
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1081 const octave_function *f = fcn.function_value (); |
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1082 |
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1083 return f ? f->fcn_file_name () : std::string (); |
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1084 } |
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1085 |
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1086 void |
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1087 symbol_table::fcn_info::fcn_info_rep::dump |
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1088 (std::ostream& os, const std::string& prefix) const |
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1089 { |
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1090 os << prefix << name |
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1091 << " [" |
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1092 << (cmdline_function.is_defined () ? "c" : "") |
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1093 << (built_in_function.is_defined () ? "b" : "") |
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1094 << "]\n"; |
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1095 |
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1096 std::string tprefix = prefix + " "; |
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1097 |
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1098 if (autoload_function.is_defined ()) |
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1099 os << tprefix << "autoload: " |
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1100 << fcn_file_name (autoload_function) << "\n"; |
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1101 |
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1102 if (function_on_path.is_defined ()) |
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1103 os << tprefix << "function from path: " |
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1104 << fcn_file_name (function_on_path) << "\n"; |
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1105 |
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1106 if (! subfunctions.empty ()) |
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1107 { |
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1108 for (scope_val_const_iterator p = subfunctions.begin (); |
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1109 p != subfunctions.end (); p++) |
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1110 os << tprefix << "subfunction: " << fcn_file_name (p->second) |
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1111 << " [" << p->first << "]\n"; |
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1112 } |
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1113 |
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1114 if (! private_functions.empty ()) |
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1115 { |
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1116 for (str_val_const_iterator p = private_functions.begin (); |
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1117 p != private_functions.end (); p++) |
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1118 os << tprefix << "private: " << fcn_file_name (p->second) |
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1119 << " [" << p->first << "]\n"; |
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1120 } |
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|
1121 |
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John W. Eaton <jwe@octave.org>
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|
1122 if (! class_constructors.empty ()) |
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changeset
|
1123 { |
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changeset
|
1124 for (str_val_const_iterator p = class_constructors.begin (); |
10315
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untabify src C++ source files
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|
1125 p != class_constructors.end (); p++) |
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untabify src C++ source files
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|
1126 os << tprefix << "constructor: " << fcn_file_name (p->second) |
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untabify src C++ source files
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|
1127 << " [" << p->first << "]\n"; |
7761
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|
1128 } |
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changeset
|
1129 |
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|
1130 if (! class_methods.empty ()) |
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changeset
|
1131 { |
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|
1132 for (str_val_const_iterator p = class_methods.begin (); |
10315
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untabify src C++ source files
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|
1133 p != class_methods.end (); p++) |
57a59eae83cc
untabify src C++ source files
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|
1134 os << tprefix << "method: " << fcn_file_name (p->second) |
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untabify src C++ source files
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|
1135 << " [" << p->first << "]\n"; |
7761
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|
1136 } |
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|
1137 |
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changeset
|
1138 if (! dispatch_map.empty ()) |
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changeset
|
1139 { |
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John W. Eaton <jwe@octave.org>
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changeset
|
1140 for (dispatch_map_const_iterator p = dispatch_map.begin (); |
10315
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untabify src C++ source files
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|
1141 p != dispatch_map.end (); p++) |
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untabify src C++ source files
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|
1142 os << tprefix << "dispatch: " << fcn_file_name (p->second) |
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untabify src C++ source files
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|
1143 << " [" << p->first << "]\n"; |
7761
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|
1144 } |
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changeset
|
1145 } |
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John W. Eaton <jwe@octave.org>
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changeset
|
1146 |
7336 | 1147 octave_value |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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11523
diff
changeset
|
1148 symbol_table::find (const std::string& name, |
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1149 const octave_value_list& args, |
9463
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support non-local function lookups in str2func
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1150 bool skip_variables, |
d34baf412786
support non-local function lookups in str2func
Jaroslav Hajek <highegg@gmail.com>
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changeset
|
1151 bool local_funcs) |
7336 | 1152 { |
7752
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
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diff
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|
1153 symbol_table *inst = get_instance (xcurrent_scope); |
7336 | 1154 |
1155 return inst | |
9463
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support non-local function lookups in str2func
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1156 ? inst->do_find (name, args, skip_variables, local_funcs) |
7336 | 1157 : octave_value (); |
1158 } | |
1159 | |
1160 octave_value | |
9444
0c785ad961fa
improve behavior of builtin
John W. Eaton <jwe@octave.org>
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9443
diff
changeset
|
1161 symbol_table::builtin_find (const std::string& name) |
0c785ad961fa
improve behavior of builtin
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9443
diff
changeset
|
1162 { |
0c785ad961fa
improve behavior of builtin
John W. Eaton <jwe@octave.org>
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9443
diff
changeset
|
1163 symbol_table *inst = get_instance (xcurrent_scope); |
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improve behavior of builtin
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9443
diff
changeset
|
1164 |
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John W. Eaton <jwe@octave.org>
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9443
diff
changeset
|
1165 return inst ? inst->do_builtin_find (name) : octave_value (); |
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improve behavior of builtin
John W. Eaton <jwe@octave.org>
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9443
diff
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|
1166 } |
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improve behavior of builtin
John W. Eaton <jwe@octave.org>
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9443
diff
changeset
|
1167 |
0c785ad961fa
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John W. Eaton <jwe@octave.org>
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9443
diff
changeset
|
1168 octave_value |
9445
c5f03874ea2a
simplify symbol_table::find and associated functions
Jaroslav Hajek <highegg@gmail.com>
parents:
9444
diff
changeset
|
1169 symbol_table::find_function (const std::string& name, |
9463
d34baf412786
support non-local function lookups in str2func
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1170 const octave_value_list& args, |
d34baf412786
support non-local function lookups in str2func
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1171 bool local_funcs) |
7336 | 1172 { |
7818
5640a70cbab1
Add Ffilemarker and fix for 'dbstep in'
David Bateman <dbateman@free.fr>
parents:
7767
diff
changeset
|
1173 octave_value retval; |
5640a70cbab1
Add Ffilemarker and fix for 'dbstep in'
David Bateman <dbateman@free.fr>
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7767
diff
changeset
|
1174 |
8161 | 1175 if (! name.empty () && name[0] == '@') |
8160
436438954797
Check for class specific methods in symbol_table::find_function
David Bateman <dbateman@free.fr>
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8155
diff
changeset
|
1176 { |
8161 | 1177 // Look for a class specific function. |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11523
diff
changeset
|
1178 std::string dispatch_type = |
10315
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untabify src C++ source files
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|
1179 name.substr (1, name.find_first_of (file_ops::dir_sep_str ()) - 1); |
8161 | 1180 |
11586
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strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1181 std::string method = |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1182 name.substr (name.find_last_of (file_ops::dir_sep_str ()) + 1, |
10315
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untabify src C++ source files
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|
1183 std::string::npos); |
8160
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David Bateman <dbateman@free.fr>
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diff
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|
1184 |
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Check for class specific methods in symbol_table::find_function
David Bateman <dbateman@free.fr>
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8155
diff
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|
1185 retval = find_method (method, dispatch_type); |
436438954797
Check for class specific methods in symbol_table::find_function
David Bateman <dbateman@free.fr>
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8155
diff
changeset
|
1186 } |
7818
5640a70cbab1
Add Ffilemarker and fix for 'dbstep in'
David Bateman <dbateman@free.fr>
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diff
changeset
|
1187 else |
5640a70cbab1
Add Ffilemarker and fix for 'dbstep in'
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7767
diff
changeset
|
1188 { |
8160
436438954797
Check for class specific methods in symbol_table::find_function
David Bateman <dbateman@free.fr>
parents:
8155
diff
changeset
|
1189 size_t pos = name.find_first_of (Vfilemarker); |
436438954797
Check for class specific methods in symbol_table::find_function
David Bateman <dbateman@free.fr>
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8155
diff
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|
1190 |
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Check for class specific methods in symbol_table::find_function
David Bateman <dbateman@free.fr>
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8155
diff
changeset
|
1191 if (pos == std::string::npos) |
10315
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untabify src C++ source files
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diff
changeset
|
1192 retval = find (name, args, true, local_funcs); |
8160
436438954797
Check for class specific methods in symbol_table::find_function
David Bateman <dbateman@free.fr>
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diff
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|
1193 else |
10315
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|
1194 { |
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|
1195 std::string fcn_scope = name.substr (0, pos); |
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|
1196 scope_id stored_scope = xcurrent_scope; |
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|
1197 xcurrent_scope = xtop_scope; |
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|
1198 octave_value parent = find_function (name.substr(0, pos), |
9463
d34baf412786
support non-local function lookups in str2func
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1199 octave_value_list (), false); |
8161 | 1200 |
10315
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untabify src C++ source files
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|
1201 if (parent.is_defined ()) |
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untabify src C++ source files
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|
1202 { |
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changeset
|
1203 octave_function *parent_fcn = parent.function_value (); |
8161 | 1204 |
10315
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untabify src C++ source files
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changeset
|
1205 if (parent_fcn) |
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|
1206 { |
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|
1207 xcurrent_scope = parent_fcn->scope (); |
8161 | 1208 |
10315
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changeset
|
1209 if (xcurrent_scope > 1) |
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changeset
|
1210 retval = find_function (name.substr (pos + 1), args); |
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|
1211 } |
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|
1212 } |
8161 | 1213 |
10315
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|
1214 xcurrent_scope = stored_scope; |
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|
1215 } |
7818
5640a70cbab1
Add Ffilemarker and fix for 'dbstep in'
David Bateman <dbateman@free.fr>
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diff
changeset
|
1216 } |
5640a70cbab1
Add Ffilemarker and fix for 'dbstep in'
David Bateman <dbateman@free.fr>
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diff
changeset
|
1217 |
5640a70cbab1
Add Ffilemarker and fix for 'dbstep in'
David Bateman <dbateman@free.fr>
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diff
changeset
|
1218 return retval; |
4913 | 1219 } |
1220 | |
7761
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symbol table reporting functions
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changeset
|
1221 void |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1222 symbol_table::dump (std::ostream& os, scope_id scope) |
5adeea5de26c
symbol table reporting functions
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7752
diff
changeset
|
1223 { |
5adeea5de26c
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
1224 if (scope == xglobal_scope) |
5adeea5de26c
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diff
changeset
|
1225 dump_global (os); |
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symbol table reporting functions
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diff
changeset
|
1226 else |
5adeea5de26c
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diff
changeset
|
1227 { |
5adeea5de26c
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diff
changeset
|
1228 symbol_table *inst = get_instance (scope, false); |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1229 |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1230 if (inst) |
10315
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|
1231 { |
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changeset
|
1232 os << "*** dumping symbol table scope " << scope |
57a59eae83cc
untabify src C++ source files
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changeset
|
1233 << " (" << inst->table_name << ")\n\n"; |
7761
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diff
changeset
|
1234 |
10315
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changeset
|
1235 std::map<std::string, octave_value> sfuns |
57a59eae83cc
untabify src C++ source files
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changeset
|
1236 = symbol_table::subfunctions_defined_in_scope (scope); |
7761
5adeea5de26c
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diff
changeset
|
1237 |
10315
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|
1238 if (! sfuns.empty ()) |
57a59eae83cc
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changeset
|
1239 { |
57a59eae83cc
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diff
changeset
|
1240 os << " subfunctions defined in this scope:\n"; |
7761
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1241 |
10315
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changeset
|
1242 for (std::map<std::string, octave_value>::const_iterator p = sfuns.begin (); |
57a59eae83cc
untabify src C++ source files
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changeset
|
1243 p != sfuns.end (); p++) |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1244 os << " " << p->first << "\n"; |
7761
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1245 |
10315
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diff
changeset
|
1246 os << "\n"; |
57a59eae83cc
untabify src C++ source files
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diff
changeset
|
1247 } |
7761
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diff
changeset
|
1248 |
10315
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changeset
|
1249 inst->do_dump (os); |
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changeset
|
1250 } |
7761
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diff
changeset
|
1251 } |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1252 } |
5adeea5de26c
symbol table reporting functions
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1253 |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1254 void |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1255 symbol_table::dump_global (std::ostream& os) |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1256 { |
5adeea5de26c
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diff
changeset
|
1257 if (! global_table.empty ()) |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1258 { |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1259 os << "*** dumping global symbol table\n\n"; |
5adeea5de26c
symbol table reporting functions
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diff
changeset
|
1260 |
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1261 for (global_table_const_iterator p = global_table.begin (); |
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1262 p != global_table.end (); p++) |
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1263 { |
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1264 std::string nm = p->first; |
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1265 octave_value val = p->second; |
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1266 |
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1267 os << " " << nm << " "; |
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1268 val.dump (os); |
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1269 os << "\n"; |
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1270 } |
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1271 } |
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1272 } |
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|
1273 |
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|
1274 void |
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1275 symbol_table::dump_functions (std::ostream& os) |
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1276 { |
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1277 if (! fcn_table.empty ()) |
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1278 { |
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1279 os << "*** dumping globally visible functions from symbol table\n" |
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1280 << " (c=commandline, b=built-in)\n\n"; |
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1281 |
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1282 for (fcn_table_const_iterator p = fcn_table.begin (); |
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1283 p != fcn_table.end (); p++) |
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1284 p->second.dump (os, " "); |
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1285 |
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1286 os << "\n"; |
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1287 } |
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|
1288 } |
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1289 |
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1290 void |
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1291 symbol_table::stash_dir_name_for_subfunctions (scope_id scope, |
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1292 const std::string& dir_name) |
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1293 { |
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1294 // FIXME -- is this the best way to do this? Maybe it would be |
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1295 // better if we had a map from scope to list of subfunctions |
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1296 // stored with the function. Do we? |
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1297 |
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1298 for (fcn_table_const_iterator p = fcn_table.begin (); |
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1299 p != fcn_table.end (); p++) |
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1300 { |
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1301 std::pair<std::string, octave_value> tmp |
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1302 = p->second.subfunction_defined_in_scope (scope); |
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1303 |
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1304 std::string nm = tmp.first; |
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1305 |
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1306 if (! nm.empty ()) |
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1307 { |
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1308 octave_value& fcn = tmp.second; |
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1309 |
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1310 octave_user_function *f = fcn.user_function_value (); |
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1311 |
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1312 if (f) |
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1313 f->stash_dir_name (dir_name); |
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1314 } |
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1315 } |
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1316 } |
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1317 |
7336 | 1318 octave_value |
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1319 symbol_table::do_find (const std::string& name, |
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1320 const octave_value_list& args, |
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1321 bool skip_variables, |
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1322 bool local_funcs) |
3013 | 1323 { |
7336 | 1324 octave_value retval; |
4913 | 1325 |
7336 | 1326 // Variable. |
4913 | 1327 |
7336 | 1328 if (! skip_variables) |
3013 | 1329 { |
7336 | 1330 table_iterator p = table.find (name); |
3013 | 1331 |
7336 | 1332 if (p != table.end ()) |
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1333 { |
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1334 symbol_record sr = p->second; |
3013 | 1335 |
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1336 // FIXME -- should we be using something other than varref here? |
5005 | 1337 |
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1338 if (sr.is_global ()) |
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1339 return symbol_table::global_varref (name); |
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1340 else |
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1341 { |
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1342 octave_value& val = sr.varref (); |
4913 | 1343 |
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1344 if (val.is_defined ()) |
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1345 return val; |
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1346 } |
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1347 } |
7336 | 1348 } |
4913 | 1349 |
7336 | 1350 fcn_table_iterator p = fcn_table.find (name); |
4913 | 1351 |
7336 | 1352 if (p != fcn_table.end ()) |
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1353 return p->second.find (args, local_funcs); |
3013 | 1354 else |
1355 { | |
7336 | 1356 fcn_info finfo (name); |
1357 | |
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1358 octave_value fcn = finfo.find (args, local_funcs); |
3013 | 1359 |
7336 | 1360 if (fcn.is_defined ()) |
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1361 fcn_table[name] = finfo; |
3013 | 1362 |
7336 | 1363 return fcn; |
3013 | 1364 } |
1365 | |
7336 | 1366 return retval; |
605 | 1367 } |
1368 | |
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1369 octave_value |
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1370 symbol_table::do_builtin_find (const std::string& name) |
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1371 { |
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1372 octave_value retval; |
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1373 |
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1374 fcn_table_iterator p = fcn_table.find (name); |
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1375 |
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1376 if (p != fcn_table.end ()) |
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1377 return p->second.builtin_find (); |
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1378 else |
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1379 { |
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1380 fcn_info finfo (name); |
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1381 |
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1382 octave_value fcn = finfo.builtin_find (); |
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1383 |
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1384 if (fcn.is_defined ()) |
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1385 fcn_table[name] = finfo; |
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1386 |
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1387 return fcn; |
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1388 } |
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1389 |
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1390 return retval; |
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|
1391 } |
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1392 |
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1393 void |
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1394 symbol_table::do_dump (std::ostream& os) |
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1395 { |
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1396 if (! persistent_table.empty ()) |
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1397 { |
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1398 os << " persistent variables in this scope:\n\n"; |
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1399 |
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1400 for (persistent_table_const_iterator p = persistent_table.begin (); |
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1401 p != persistent_table.end (); p++) |
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1402 { |
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1403 std::string nm = p->first; |
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1404 octave_value val = p->second; |
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1405 |
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1406 os << " " << nm << " "; |
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1407 val.dump (os); |
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1408 os << "\n"; |
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1409 } |
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1410 |
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1411 os << "\n"; |
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1412 } |
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1413 |
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1414 if (! table.empty ()) |
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|
1415 { |
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|
1416 os << " other symbols in this scope (l=local; a=auto; f=formal\n" |
10315
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|
1417 << " h=hidden; i=inherited; g=global; p=persistent)\n\n"; |
7761
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|
1418 |
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|
1419 for (table_const_iterator p = table.begin (); p != table.end (); p++) |
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|
1420 p->second.dump (os, " "); |
7761
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|
1421 |
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changeset
|
1422 os << "\n"; |
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|
1423 } |
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|
1424 } |
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|
1425 |
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|
1426 void symbol_table::cleanup (void) |
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|
1427 { |
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|
1428 // Clear variables in top scope. |
9992
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avoid duplicate function cleaning in symbol_table::cleanup
Jaroslav Hajek <highegg@gmail.com>
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|
1429 all_instances[xtop_scope]->clear_variables (); |
9981
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|
1430 |
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1431 // Clear function table. This is a hard clear, ignoring mlocked functions. |
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1432 fcn_table.clear (); |
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1433 |
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1434 // Clear variables in global scope. |
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1435 // FIXME: are there any? |
9992
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|
1436 all_instances[xglobal_scope]->clear_variables (); |
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|
1437 |
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1438 // Clear global variables. |
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1439 global_table.clear (); |
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|
1440 |
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1441 // Delete all possibly remaining scopes. |
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|
1442 for (all_instances_iterator iter = all_instances.begin (); |
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|
1443 iter != all_instances.end (); iter++) |
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1444 { |
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|
1445 scope_id scope = iter->first; |
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1446 if (scope != xglobal_scope && scope != xtop_scope) |
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1447 scope_id_cache::free (scope); |
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1448 |
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1449 // First zero the table entry to avoid possible duplicate delete. |
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1450 symbol_table *inst = iter->second; |
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1451 iter->second = 0; |
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1452 |
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1453 // Now delete the scope. Note that there may be side effects, such as |
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1454 // deleting other scopes. |
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1455 delete inst; |
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|
1456 } |
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|
1457 } |
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|
1458 |
7336 | 1459 DEFUN (ignore_function_time_stamp, args, nargout, |
1460 "-*- texinfo -*-\n\ | |
10840 | 1461 @deftypefn {Built-in Function} {@var{val} =} ignore_function_time_stamp ()\n\ |
7336 | 1462 @deftypefnx {Built-in Function} {@var{old_val} =} ignore_function_time_stamp (@var{new_val})\n\ |
1463 Query or set the internal variable that controls whether Octave checks\n\ | |
1464 the time stamp on files each time it looks up functions defined in\n\ | |
1465 function files. If the internal variable is set to @code{\"system\"},\n\ | |
1466 Octave will not automatically recompile function files in subdirectories of\n\ | |
1467 @file{@var{octave-home}/lib/@var{version}} if they have changed since\n\ | |
1468 they were last compiled, but will recompile other function files in the\n\ | |
1469 search path if they change. If set to @code{\"all\"}, Octave will not\n\ | |
1470 recompile any function files unless their definitions are removed with\n\ | |
1471 @code{clear}. If set to \"none\", Octave will always check time stamps\n\ | |
1472 on files to determine whether functions defined in function files\n\ | |
1473 need to recompiled.\n\ | |
1474 @end deftypefn") | |
220 | 1475 { |
7336 | 1476 octave_value retval; |
220 | 1477 |
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|
1478 int nargin = args.length (); |
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|
1479 |
13078
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|
1480 if (nargout > 0 || nargin == 0) |
5861 | 1481 { |
7336 | 1482 switch (Vignore_function_time_stamp) |
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1483 { |
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1484 case 1: |
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1485 retval = "system"; |
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|
1486 break; |
5861 | 1487 |
10315
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|
1488 case 2: |
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|
1489 retval = "all"; |
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|
1490 break; |
5861 | 1491 |
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|
1492 default: |
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|
1493 retval = "none"; |
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|
1494 break; |
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|
1495 } |
5861 | 1496 } |
1497 | |
7336 | 1498 if (nargin == 1) |
3013 | 1499 { |
7336 | 1500 std::string sval = args(0).string_value (); |
1 | 1501 |
7336 | 1502 if (! error_state) |
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|
1503 { |
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|
1504 if (sval == "all") |
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|
1505 Vignore_function_time_stamp = 2; |
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|
1506 else if (sval == "system") |
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|
1507 Vignore_function_time_stamp = 1; |
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1508 else if (sval == "none") |
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1509 Vignore_function_time_stamp = 0; |
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|
1510 else |
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|
1511 error ("ignore_function_time_stamp: expecting argument to be \"all\", \"system\", or \"none\""); |
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|
1512 } |
7336 | 1513 else |
10315
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changeset
|
1514 error ("ignore_function_time_stamp: expecting argument to be character string"); |
7336 | 1515 } |
1516 else if (nargin > 1) | |
1517 print_usage (); | |
4238 | 1518 |
7336 | 1519 return retval; |
3308 | 1520 } |
1521 | |
13078
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|
1522 /* |
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1523 %!shared old_state |
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|
1524 %! old_state = ignore_function_time_stamp (); |
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1525 %!test |
13141
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1526 %! state = ignore_function_time_stamp ("all"); |
13078
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|
1527 %! assert (state, old_state); |
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1528 %! assert (ignore_function_time_stamp (), "all"); |
13141
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1529 %! state = ignore_function_time_stamp ("system"); |
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1530 %! assert (state, "all"); |
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1531 %! assert (ignore_function_time_stamp (), "system"); |
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1532 %! ignore_function_time_stamp (old_state); |
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1533 |
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1534 %% Test input validation |
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1535 %!error (ignore_function_time_stamp ("all", "all")) |
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|
1536 %!error (ignore_function_time_stamp ("UNKNOWN_VALUE")) |
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1537 %!error (ignore_function_time_stamp (42)) |
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1538 |
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1539 */ |
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1540 |
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1541 DEFUN (__current_scope__, , , |
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1542 "-*- texinfo -*-\n\ |
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1543 @deftypefn {Built-in Function} {[@var{scope}, @var{context}]} __dump_symtab_info__ ()\n\ |
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1544 Undocumented internal function.\n\ |
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|
1545 @end deftypefn") |
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1546 { |
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|
1547 octave_value_list retval; |
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|
1548 |
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|
1549 retval(1) = symbol_table::current_context (); |
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|
1550 retval(0) = symbol_table::current_scope (); |
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|
1551 |
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|
1552 return retval; |
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|
1553 } |
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|
1554 |
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|
1555 DEFUN (__dump_symtab_info__, args, , |
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|
1556 "-*- texinfo -*-\n\ |
10840 | 1557 @deftypefn {Built-in Function} {} __dump_symtab_info__ ()\n\ |
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1558 @deftypefnx {Built-in Function} {} __dump_symtab_info__ (@var{scope})\n\ |
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1559 @deftypefnx {Built-in Function} {} __dump_symtab_info__ (\"scopes\")\n\ |
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1560 @deftypefnx {Built-in Function} {} __dump_symtab_info__ (\"functions\")\n\ |
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|
1561 Undocumented internal function.\n\ |
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|
1562 @end deftypefn") |
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1563 { |
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1564 octave_value retval; |
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1565 |
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1566 int nargin = args.length (); |
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1567 |
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1568 if (nargin == 0) |
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1569 { |
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1570 symbol_table::dump_functions (octave_stdout); |
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1571 |
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1572 symbol_table::dump_global (octave_stdout); |
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1573 |
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1574 std::list<symbol_table::scope_id> lst = symbol_table::scopes (); |
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1575 |
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1576 for (std::list<symbol_table::scope_id>::const_iterator p = lst.begin (); |
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1577 p != lst.end (); p++) |
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1578 symbol_table::dump (octave_stdout, *p); |
7761
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1579 } |
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1580 else if (nargin == 1) |
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1581 { |
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1582 octave_value arg = args(0); |
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1583 |
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1584 if (arg.is_string ()) |
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1585 { |
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1586 std::string s_arg = arg.string_value (); |
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1587 |
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1588 if (s_arg == "scopes") |
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1589 { |
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1590 std::list<symbol_table::scope_id> lst = symbol_table::scopes (); |
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1591 |
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1592 RowVector v (lst.size ()); |
7761
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1593 |
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1594 octave_idx_type k = 0; |
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1595 |
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1596 for (std::list<symbol_table::scope_id>::const_iterator p = lst.begin (); |
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1597 p != lst.end (); p++) |
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1598 v.xelem (k++) = *p; |
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1599 |
10315
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1600 retval = v; |
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1601 } |
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1602 else if (s_arg == "functions") |
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1603 { |
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1604 symbol_table::dump_functions (octave_stdout); |
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1605 } |
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1606 else |
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1607 error ("__dump_symtab_info__: expecting \"functions\" or \"scopes\""); |
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1608 } |
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1609 else |
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1610 { |
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1611 int s = arg.int_value (); |
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1612 |
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1613 if (! error_state) |
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1614 symbol_table::dump (octave_stdout, s); |
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1615 else |
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1616 error ("__dump_symtab_info__: expecting string or scope id"); |
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1617 } |
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1618 } |
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1619 else |
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1620 print_usage (); |
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1621 |
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1622 return retval; |
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1623 } |
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1624 |
7437 | 1625 #if 0 |
1626 | |
1627 // FIXME -- should we have functions like this in Octave? | |
1628 | |
1629 DEFUN (set_variable, args, , "set_variable (NAME, VALUE)") | |
1630 { | |
1631 octave_value retval; | |
1632 | |
1633 if (args.length () == 2) | |
1634 { | |
1635 std::string name = args(0).string_value (); | |
1636 | |
1637 if (! error_state) | |
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1638 symbol_table::varref (name) = args(1); |
7437 | 1639 else |
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1640 error ("set_variable: expecting variable name as first argument"); |
7437 | 1641 } |
1642 else | |
1643 print_usage (); | |
1644 | |
1645 return retval; | |
1646 } | |
1647 | |
1648 DEFUN (variable_value, args, , "VALUE = variable_value (NAME)") | |
1649 { | |
1650 octave_value retval; | |
1651 | |
1652 if (args.length () == 1) | |
1653 { | |
1654 std::string name = args(0).string_value (); | |
1655 | |
1656 if (! error_state) | |
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1657 { |
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1658 retval = symbol_table::varval (name); |
7437 | 1659 |
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1660 if (retval.is_undefined ()) |
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1661 error ("variable_value: `%s' is not a variable in the current scope", |
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1662 name.c_str ()); |
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1663 } |
7437 | 1664 else |
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1665 error ("variable_value: expecting variable name as first argument"); |
7437 | 1666 } |
1667 else | |
1668 print_usage (); | |
1669 | |
1670 return retval; | |
1671 } | |
1672 #endif |