gcc/c-family/stub-objc.c

   1 /* Stub functions for Objective-C and Objective-C++ routines
   2    that are called from within the C and C++ front-ends,
   3    respectively.
   4    Copyright (C) 1991-2015 Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 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
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #include "config.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "alias.h"
  26 #include "symtab.h"
  27 #include "flags.h"
  28 #include "tree.h"
  29 #include "c-common.h"
  30 #include "c-objc.h"
  31
  32 tree
  33 objc_is_class_name (tree ARG_UNUSED (arg))
  34 {
  35   return 0;
  36 }
  37
  38 tree
  39 objc_is_id (tree ARG_UNUSED (arg))
  40 {
  41   return 0;
  42 }
  43
  44 tree
  45 objc_is_object_ptr (tree ARG_UNUSED (arg))
  46 {
  47   return 0;
  48 }
  49
  50 bool objc_diagnose_private_ivar (tree ARG_UNUSED (arg))
  51 {
  52   return false;
  53 }
  54
  55 tree
  56 objc_lookup_ivar (tree other, tree ARG_UNUSED (arg))
  57 {
  58   /* Just use whatever C/C++ found.  */
  59   return other;
  60 }
  61
  62 void
  63 objc_check_decl (tree ARG_UNUSED (decl))
  64 {
  65 }
  66
  67 void
  68 objc_check_global_decl (tree ARG_UNUSED (decl))
  69 {
  70 }
  71
  72 tree
  73 objc_common_type (tree ARG_UNUSED (type1), tree ARG_UNUSED (type2))
  74 {
  75   return 0;
  76 }
  77
  78 bool
  79 objc_compare_types (tree ARG_UNUSED (ltyp), tree ARG_UNUSED (rtyp),
  80                     int ARG_UNUSED (argno), tree ARG_UNUSED (callee))
  81 {
  82   return false;
  83 }
  84
  85 bool
  86 objc_have_common_type (tree ARG_UNUSED (ltyp), tree ARG_UNUSED (rtyp),
  87                        int ARG_UNUSED (argno), tree ARG_UNUSED (callee))
  88 {
  89   return false;
  90 }
  91
  92 void
  93 objc_volatilize_decl (tree ARG_UNUSED (decl))
  94 {
  95 }
  96
  97 tree
  98 objc_rewrite_function_call (tree function, tree ARG_UNUSED (first_param))
  99 {
 100   return function;
 101 }
 102
 103 tree
 104 objc_message_selector (void)
 105 {
 106   return 0;
 107 }
 108
 109 void
 110 objc_declare_alias (tree ARG_UNUSED (alias), tree ARG_UNUSED (orig))
 111 {
 112 }
 113
 114 void
 115 objc_declare_class (tree ARG_UNUSED (identifier))
 116 {
 117 }
 118
 119 void
 120 objc_declare_protocol (tree ARG_UNUSED (name), tree ARG_UNUSED (attributes))
 121 {
 122 }
 123
 124 void
 125 objc_start_protocol (tree ARG_UNUSED (proto),
 126                      tree ARG_UNUSED (protorefs),
 127                      tree ARG_UNUSED (attribs))
 128 {
 129 }
 130
 131 void
 132 objc_set_method_opt (bool ARG_UNUSED (optional))
 133 {
 134 }
 135
 136 void
 137 objc_start_class_interface (tree ARG_UNUSED (name),
 138                             tree ARG_UNUSED (super),
 139                             tree ARG_UNUSED (protos),
 140                             tree ARG_UNUSED (attribs))
 141 {
 142 }
 143
 144 void
 145 objc_start_category_interface (tree ARG_UNUSED (name),
 146                                tree ARG_UNUSED (categ),
 147                                tree ARG_UNUSED (protos),
 148                                tree ARG_UNUSED (attribs))
 149 {
 150 }
 151
 152 void
 153 objc_continue_interface (void)
 154 {
 155 }
 156
 157 void
 158 objc_finish_interface (void)
 159 {
 160 }
 161
 162 void
 163 objc_add_instance_variable (tree ARG_UNUSED (decl))
 164 {
 165 }
 166
 167 void
 168 objc_set_visibility (objc_ivar_visibility_kind ARG_UNUSED (vis))
 169 {
 170 }
 171
 172 void
 173 objc_start_class_implementation (tree ARG_UNUSED (name),
 174                                  tree ARG_UNUSED (super))
 175 {
 176 }
 177
 178 void
 179 objc_start_category_implementation (tree ARG_UNUSED (name),
 180                                     tree ARG_UNUSED (categ))
 181 {
 182 }
 183
 184 void
 185 objc_continue_implementation (void)
 186 {
 187 }
 188
 189 void
 190 objc_clear_super_receiver (void)
 191 {
 192 }
 193
 194 void
 195 objc_finish_implementation (void)
 196 {
 197 }
 198
 199 void
 200 objc_add_method_declaration (bool ARG_UNUSED (is_class_method),
 201                              tree ARG_UNUSED (signature),
 202                              tree ARG_UNUSED (attributes))
 203 {
 204 }
 205
 206 bool
 207 objc_start_method_definition (bool ARG_UNUSED (is_class_method),
 208                               tree ARG_UNUSED (signature),
 209                               tree ARG_UNUSED (attributes),
 210                               tree ARG_UNUSED (expr))
 211 {
 212   return true;
 213 }
 214
 215 void
 216 objc_finish_method_definition (tree ARG_UNUSED (fndecl))
 217 {
 218 }
 219
 220 bool
 221 objc_method_decl (enum tree_code ARG_UNUSED(opcode))
 222 {
 223   return false;
 224 }
 225
 226 tree
 227 objc_build_keyword_decl (tree ARG_UNUSED (selector),
 228                          tree ARG_UNUSED (type),
 229                          tree ARG_UNUSED (identifier),
 230                          tree ARG_UNUSED (attributes))
 231 {
 232   return 0;
 233 }
 234
 235 tree
 236 objc_build_method_signature (bool ARG_UNUSED (is_class_method),
 237                              tree ARG_UNUSED (rettype),
 238                              tree ARG_UNUSED (selectors),
 239                              tree ARG_UNUSED (optparms),
 240                              bool ARG_UNUSED (ellipsis))
 241 {
 242   return 0;
 243 }
 244
 245 tree
 246 objc_build_encode_expr (tree ARG_UNUSED (expr))
 247 {
 248   return 0;
 249 }
 250
 251 tree
 252 objc_build_protocol_expr (tree ARG_UNUSED (expr))
 253 {
 254   return 0;
 255 }
 256
 257 tree
 258 objc_build_selector_expr (location_t ARG_UNUSED (loc), tree ARG_UNUSED (expr))
 259 {
 260   return 0;
 261 }
 262
 263 tree
 264 objc_build_message_expr (tree ARG_UNUSED (receiver), tree ARG_UNUSED (args))
 265 {
 266   return 0;
 267 }
 268
 269 tree
 270 objc_build_string_object (tree ARG_UNUSED (str))
 271 {
 272   return 0;
 273 }
 274
 275 tree
 276 objc_get_class_reference (tree ARG_UNUSED (name))
 277 {
 278   return 0;
 279 }
 280
 281 bool
 282 objc_detect_field_duplicates (bool ARG_UNUSED (check_superclasses_only))
 283 {
 284   return false;
 285 }
 286
 287 tree
 288 objc_get_protocol_qualified_type (tree ARG_UNUSED (name),
 289                                   tree ARG_UNUSED (protos))
 290 {
 291   return 0;
 292 }
 293
 294 int
 295 objc_static_init_needed_p (void)
 296 {
 297   return 0;
 298 }
 299
 300 tree
 301 objc_generate_static_init_call (tree ARG_UNUSED (ctors))
 302 {
 303   return 0;
 304 }
 305
 306 int
 307 objc_is_public (tree ARG_UNUSED (expr), tree ARG_UNUSED (identifier))
 308 {
 309   return 1;
 310 }
 311
 312 tree
 313 objc_get_class_ivars (tree ARG_UNUSED (name))
 314 {
 315   return 0;
 316 }
 317
 318 void
 319 objc_add_property_declaration (location_t ARG_UNUSED (location),
 320                                tree ARG_UNUSED (decl),
 321                                bool ARG_UNUSED (parsed_property_readonly),
 322                                bool ARG_UNUSED (parsed_property_readwrite),
 323                                bool ARG_UNUSED (parsed_property_assign),
 324                                bool ARG_UNUSED (parsed_property_retain),
 325                                bool ARG_UNUSED (parsed_property_copy),
 326                                bool ARG_UNUSED (parsed_property_nonatomic),
 327                                tree ARG_UNUSED (parsed_property_getter_ident),
 328                                tree ARG_UNUSED (parsed_property_setter_ident))
 329 {
 330 }
 331
 332 bool
 333 objc_is_property_ref (tree ARG_UNUSED (node))
 334 {
 335   return 0;
 336 }
 337
 338 tree
 339 objc_maybe_build_component_ref (tree ARG_UNUSED (datum), tree ARG_UNUSED (component))
 340 {
 341   return 0;
 342 }
 343
 344 tree
 345 objc_build_class_component_ref (tree ARG_UNUSED (datum), tree ARG_UNUSED (component))
 346 {
 347   return 0;
 348 }
 349
 350 tree
 351 objc_maybe_build_modify_expr (tree ARG_UNUSED (lhs), tree ARG_UNUSED (rhs))
 352 {
 353   return 0;
 354 }
 355
 356 tree
 357 objc_build_incr_expr_for_property_ref (location_t ARG_UNUSED (location),
 358                                        enum tree_code ARG_UNUSED (code),
 359                                        tree ARG_UNUSED (argument),
 360                                        tree ARG_UNUSED (increment))
 361 {
 362   return 0;
 363 }
 364
 365 void
 366 objc_add_synthesize_declaration (location_t ARG_UNUSED (start_locus),
 367                                  tree ARG_UNUSED (property_and_ivar_list))
 368 {
 369 }
 370
 371 void
 372 objc_add_dynamic_declaration (location_t ARG_UNUSED (start_locus),
 373                               tree ARG_UNUSED (property_list))
 374 {
 375 }
 376
 377 const char *
 378 objc_maybe_printable_name (tree ARG_UNUSED (decl),
 379                            int ARG_UNUSED (v))
 380 {
 381   return NULL;
 382 }
 383
 384 tree
 385 objc_build_throw_stmt (location_t ARG_UNUSED (loc), tree ARG_UNUSED (expr))
 386 {
 387   return 0;
 388 }
 389
 390 tree
 391 objc_build_synchronized (location_t ARG_UNUSED (start_locus),
 392                          tree ARG_UNUSED (mutex), tree ARG_UNUSED (body))
 393 {
 394   return 0;
 395 }
 396
 397 void
 398 objc_begin_try_stmt (location_t ARG_UNUSED (try_locus), tree ARG_UNUSED (body))
 399 {
 400 }
 401
 402 void
 403 objc_begin_catch_clause (tree ARG_UNUSED (decl))
 404 {
 405 }
 406
 407 void
 408 objc_finish_catch_clause (void)
 409 {
 410 }
 411
 412 void
 413 objc_build_finally_clause (location_t ARG_UNUSED (finally_locus),
 414                            tree ARG_UNUSED (body))
 415 {
 416 }
 417
 418 tree
 419 objc_finish_try_stmt (void)
 420 {
 421   return 0;
 422 }
 423
 424 tree
 425 objc_generate_write_barrier (tree ARG_UNUSED (lhs),
 426                              enum tree_code ARG_UNUSED (modifycode),
 427                              tree ARG_UNUSED (rhs))
 428 {
 429   return 0;
 430 }
 431
 432 void
 433 objc_finish_foreach_loop (location_t ARG_UNUSED (location), tree ARG_UNUSED (object_expression),
 434                           tree ARG_UNUSED (collection_expression), tree ARG_UNUSED (for_body),
 435                           tree ARG_UNUSED (break_label), tree ARG_UNUSED (continue_label))
 436 {
 437   return;
 438 }
 439
 440 void
 441 objc_write_global_declarations (void)
 442 {
 443 }
 444
 445 bool
 446 objc_string_ref_type_p (tree ARG_UNUSED (strp))
 447 {
 448    return false;
 449 }
 450
 451 void
 452 objc_check_format_arg (tree ARG_UNUSED (format_arg),
 453                        tree ARG_UNUSED (args_list))
 454 {
 455 }
 456
 457 void
 458 objc_finish_function (void)
 459 {
 460 }
 461
 462 void
 463 objc_maybe_warn_exceptions (location_t ARG_UNUSED (loc))
 464 {
 465 }