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) 1991-2014 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 "tree.h"
  26 #include "c-common.h"
  27 #include "c-objc.h"
  28
  29 tree
  30 objc_is_class_name (tree ARG_UNUSED (arg))
  31 {
  32   return 0;
  33 }
  34
  35 tree
  36 objc_is_id (tree ARG_UNUSED (arg))
  37 {
  38   return 0;
  39 }
  40
  41 tree
  42 objc_is_object_ptr (tree ARG_UNUSED (arg))
  43 {
  44   return 0;
  45 }
  46
  47 bool objc_diagnose_private_ivar (tree ARG_UNUSED (arg))
  48 {
  49   return false;
  50 }
  51
  52 tree
  53 objc_lookup_ivar (tree other, tree ARG_UNUSED (arg))
  54 {
  55   /* Just use whatever C/C++ found.  */
  56   return other;
  57 }
  58
  59 void
  60 objc_check_decl (tree ARG_UNUSED (decl))
  61 {
  62 }
  63
  64 void
  65 objc_check_global_decl (tree ARG_UNUSED (decl))
  66 {
  67 }
  68
  69 tree
  70 objc_common_type (tree ARG_UNUSED (type1), tree ARG_UNUSED (type2))
  71 {
  72   return 0;
  73 }
  74
  75 bool
  76 objc_compare_types (tree ARG_UNUSED (ltyp), tree ARG_UNUSED (rtyp),
  77                     int ARG_UNUSED (argno), tree ARG_UNUSED (callee))
  78 {
  79   return false;
  80 }
  81
  82 bool
  83 objc_have_common_type (tree ARG_UNUSED (ltyp), tree ARG_UNUSED (rtyp),
  84                        int ARG_UNUSED (argno), tree ARG_UNUSED (callee))
  85 {
  86   return false;
  87 }
  88
  89 void
  90 objc_volatilize_decl (tree ARG_UNUSED (decl))
  91 {
  92 }
  93
  94 tree
  95 objc_rewrite_function_call (tree function, tree ARG_UNUSED (first_param))
  96 {
  97   return function;
  98 }
  99
 100 tree
 101 objc_message_selector (void)
 102 {
 103   return 0;
 104 }
 105
 106 void
 107 objc_declare_alias (tree ARG_UNUSED (alias), tree ARG_UNUSED (orig))
 108 {
 109 }
 110
 111 void
 112 objc_declare_class (tree ARG_UNUSED (identifier))
 113 {
 114 }
 115
 116 void
 117 objc_declare_protocol (tree ARG_UNUSED (name), tree ARG_UNUSED (attributes))
 118 {
 119 }
 120
 121 void
 122 objc_start_protocol (tree ARG_UNUSED (proto),
 123                      tree ARG_UNUSED (protorefs),
 124                      tree ARG_UNUSED (attribs))
 125 {
 126 }
 127
 128 void
 129 objc_set_method_opt (bool ARG_UNUSED (optional))
 130 {
 131 }
 132
 133 void
 134 objc_start_class_interface (tree ARG_UNUSED (name),
 135                             tree ARG_UNUSED (super),
 136                             tree ARG_UNUSED (protos),
 137                             tree ARG_UNUSED (attribs))
 138 {
 139 }
 140
 141 void
 142 objc_start_category_interface (tree ARG_UNUSED (name),
 143                                tree ARG_UNUSED (categ),
 144                                tree ARG_UNUSED (protos),
 145                                tree ARG_UNUSED (attribs))
 146 {
 147 }
 148
 149 void
 150 objc_continue_interface (void)
 151 {
 152 }
 153
 154 void
 155 objc_finish_interface (void)
 156 {
 157 }
 158
 159 void
 160 objc_add_instance_variable (tree ARG_UNUSED (decl))
 161 {
 162 }
 163
 164 void
 165 objc_set_visibility (objc_ivar_visibility_kind ARG_UNUSED (vis))
 166 {
 167 }
 168
 169 void
 170 objc_start_class_implementation (tree ARG_UNUSED (name),
 171                                  tree ARG_UNUSED (super))
 172 {
 173 }
 174
 175 void
 176 objc_start_category_implementation (tree ARG_UNUSED (name),
 177                                     tree ARG_UNUSED (categ))
 178 {
 179 }
 180
 181 void
 182 objc_continue_implementation (void)
 183 {
 184 }
 185
 186 void
 187 objc_clear_super_receiver (void)
 188 {
 189 }
 190
 191 void
 192 objc_finish_implementation (void)
 193 {
 194 }
 195
 196 void
 197 objc_add_method_declaration (bool ARG_UNUSED (is_class_method),
 198                              tree ARG_UNUSED (signature),
 199                              tree ARG_UNUSED (attributes))
 200 {
 201 }
 202
 203 bool
 204 objc_start_method_definition (bool ARG_UNUSED (is_class_method),
 205                               tree ARG_UNUSED (signature),
 206                               tree ARG_UNUSED (attributes),
 207                               tree ARG_UNUSED (expr))
 208 {
 209   return true;
 210 }
 211
 212 void
 213 objc_finish_method_definition (tree ARG_UNUSED (fndecl))
 214 {
 215 }
 216
 217 bool
 218 objc_method_decl (enum tree_code ARG_UNUSED(opcode))
 219 {
 220   return false;
 221 }
 222
 223 tree
 224 objc_build_keyword_decl (tree ARG_UNUSED (selector),
 225                          tree ARG_UNUSED (type),
 226                          tree ARG_UNUSED (identifier),
 227                          tree ARG_UNUSED (attributes))
 228 {
 229   return 0;
 230 }
 231
 232 tree
 233 objc_build_method_signature (bool ARG_UNUSED (is_class_method),
 234                              tree ARG_UNUSED (rettype),
 235                              tree ARG_UNUSED (selectors),
 236                              tree ARG_UNUSED (optparms),
 237                              bool ARG_UNUSED (ellipsis))
 238 {
 239   return 0;
 240 }
 241
 242 tree
 243 objc_build_encode_expr (tree ARG_UNUSED (expr))
 244 {
 245   return 0;
 246 }
 247
 248 tree
 249 objc_build_protocol_expr (tree ARG_UNUSED (expr))
 250 {
 251   return 0;
 252 }
 253
 254 tree
 255 objc_build_selector_expr (location_t ARG_UNUSED (loc), tree ARG_UNUSED (expr))
 256 {
 257   return 0;
 258 }
 259
 260 tree
 261 objc_build_message_expr (tree ARG_UNUSED (receiver), tree ARG_UNUSED (args))
 262 {
 263   return 0;
 264 }
 265
 266 tree
 267 objc_build_string_object (tree ARG_UNUSED (str))
 268 {
 269   return 0;
 270 }
 271
 272 tree
 273 objc_get_class_reference (tree ARG_UNUSED (name))
 274 {
 275   return 0;
 276 }
 277
 278 bool
 279 objc_detect_field_duplicates (bool ARG_UNUSED (check_superclasses_only))
 280 {
 281   return false;
 282 }
 283
 284 tree
 285 objc_get_protocol_qualified_type (tree ARG_UNUSED (name),
 286                                   tree ARG_UNUSED (protos))
 287 {
 288   return 0;
 289 }
 290
 291 int
 292 objc_static_init_needed_p (void)
 293 {
 294   return 0;
 295 }
 296
 297 tree
 298 objc_generate_static_init_call (tree ARG_UNUSED (ctors))
 299 {
 300   return 0;
 301 }
 302
 303 int
 304 objc_is_public (tree ARG_UNUSED (expr), tree ARG_UNUSED (identifier))
 305 {
 306   return 1;
 307 }
 308
 309 tree
 310 objc_get_class_ivars (tree ARG_UNUSED (name))
 311 {
 312   return 0;
 313 }
 314
 315 void
 316 objc_add_property_declaration (location_t ARG_UNUSED (location),
 317                                tree ARG_UNUSED (decl),
 318                                bool ARG_UNUSED (parsed_property_readonly),
 319                                bool ARG_UNUSED (parsed_property_readwrite),
 320                                bool ARG_UNUSED (parsed_property_assign),
 321                                bool ARG_UNUSED (parsed_property_retain),
 322                                bool ARG_UNUSED (parsed_property_copy),
 323                                bool ARG_UNUSED (parsed_property_nonatomic),
 324                                tree ARG_UNUSED (parsed_property_getter_ident),
 325                                tree ARG_UNUSED (parsed_property_setter_ident))
 326 {
 327 }
 328
 329 bool
 330 objc_is_property_ref (tree ARG_UNUSED (node))
 331 {
 332   return 0;
 333 }
 334
 335 tree
 336 objc_maybe_build_component_ref (tree ARG_UNUSED (datum), tree ARG_UNUSED (component))
 337 {
 338   return 0;
 339 }
 340
 341 tree
 342 objc_build_class_component_ref (tree ARG_UNUSED (datum), tree ARG_UNUSED (component))
 343 {
 344   return 0;
 345 }
 346
 347 tree
 348 objc_maybe_build_modify_expr (tree ARG_UNUSED (lhs), tree ARG_UNUSED (rhs))
 349 {
 350   return 0;
 351 }
 352
 353 tree
 354 objc_build_incr_expr_for_property_ref (location_t ARG_UNUSED (location),
 355                                        enum tree_code ARG_UNUSED (code),
 356                                        tree ARG_UNUSED (argument),
 357                                        tree ARG_UNUSED (increment))
 358 {
 359   return 0;
 360 }
 361
 362 void
 363 objc_add_synthesize_declaration (location_t ARG_UNUSED (start_locus),
 364                                  tree ARG_UNUSED (property_and_ivar_list))
 365 {
 366 }
 367
 368 void
 369 objc_add_dynamic_declaration (location_t ARG_UNUSED (start_locus),
 370                               tree ARG_UNUSED (property_list))
 371 {
 372 }
 373
 374 const char *
 375 objc_maybe_printable_name (tree ARG_UNUSED (decl),
 376                            int ARG_UNUSED (v))
 377 {
 378   return NULL;
 379 }
 380
 381 tree
 382 objc_build_throw_stmt (location_t ARG_UNUSED (loc), tree ARG_UNUSED (expr))
 383 {
 384   return 0;
 385 }
 386
 387 tree
 388 objc_build_synchronized (location_t ARG_UNUSED (start_locus),
 389                          tree ARG_UNUSED (mutex), tree ARG_UNUSED (body))
 390 {
 391   return 0;
 392 }
 393
 394 void
 395 objc_begin_try_stmt (location_t ARG_UNUSED (try_locus), tree ARG_UNUSED (body))
 396 {
 397 }
 398
 399 void
 400 objc_begin_catch_clause (tree ARG_UNUSED (decl))
 401 {
 402 }
 403
 404 void
 405 objc_finish_catch_clause (void)
 406 {
 407 }
 408
 409 void
 410 objc_build_finally_clause (location_t ARG_UNUSED (finally_locus),
 411                            tree ARG_UNUSED (body))
 412 {
 413 }
 414
 415 tree
 416 objc_finish_try_stmt (void)
 417 {
 418   return 0;
 419 }
 420
 421 tree
 422 objc_generate_write_barrier (tree ARG_UNUSED (lhs),
 423                              enum tree_code ARG_UNUSED (modifycode),
 424                              tree ARG_UNUSED (rhs))
 425 {
 426   return 0;
 427 }
 428
 429 void
 430 objc_finish_foreach_loop (location_t ARG_UNUSED (location), tree ARG_UNUSED (object_expression),
 431                           tree ARG_UNUSED (collection_expression), tree ARG_UNUSED (for_body),
 432                           tree ARG_UNUSED (break_label), tree ARG_UNUSED (continue_label))
 433 {
 434   return;
 435 }
 436
 437 void
 438 objc_write_global_declarations (void)
 439 {
 440 }
 441
 442 bool
 443 objc_string_ref_type_p (tree ARG_UNUSED (strp))
 444 {
 445    return false;
 446 }
 447
 448 void
 449 objc_check_format_arg (tree ARG_UNUSED (format_arg),
 450                        tree ARG_UNUSED (args_list))
 451 {
 452 }
 453
 454 void
 455 objc_finish_function (void)
 456 {
 457 }
 458
 459 void
 460 objc_maybe_warn_exceptions (location_t ARG_UNUSED (loc))
 461 {
 462 }