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 "vec.h"
  26 #include "hash-set.h"
  27 #include "machmode.h"
  28 #include "alias.h"
  29 #include "input.h"
  30 #include "symtab.h"
  31 #include "double-int.h"
  32 #include "flags.h"
  33 #include "inchash.h"
  34 #include "tree.h"
  35 #include "c-common.h"
  36 #include "c-objc.h"
  37
  38 tree
  39 objc_is_class_name (tree ARG_UNUSED (arg))
  40 {
  41   return 0;
  42 }
  43
  44 tree
  45 objc_is_id (tree ARG_UNUSED (arg))
  46 {
  47   return 0;
  48 }
  49
  50 tree
  51 objc_is_object_ptr (tree ARG_UNUSED (arg))
  52 {
  53   return 0;
  54 }
  55
  56 bool objc_diagnose_private_ivar (tree ARG_UNUSED (arg))
  57 {
  58   return false;
  59 }
  60
  61 tree
  62 objc_lookup_ivar (tree other, tree ARG_UNUSED (arg))
  63 {
  64   /* Just use whatever C/C++ found.  */
  65   return other;
  66 }
  67
  68 void
  69 objc_check_decl (tree ARG_UNUSED (decl))
  70 {
  71 }
  72
  73 void
  74 objc_check_global_decl (tree ARG_UNUSED (decl))
  75 {
  76 }
  77
  78 tree
  79 objc_common_type (tree ARG_UNUSED (type1), tree ARG_UNUSED (type2))
  80 {
  81   return 0;
  82 }
  83
  84 bool
  85 objc_compare_types (tree ARG_UNUSED (ltyp), tree ARG_UNUSED (rtyp),
  86                     int ARG_UNUSED (argno), tree ARG_UNUSED (callee))
  87 {
  88   return false;
  89 }
  90
  91 bool
  92 objc_have_common_type (tree ARG_UNUSED (ltyp), tree ARG_UNUSED (rtyp),
  93                        int ARG_UNUSED (argno), tree ARG_UNUSED (callee))
  94 {
  95   return false;
  96 }
  97
  98 void
  99 objc_volatilize_decl (tree ARG_UNUSED (decl))
 100 {
 101 }
 102
 103 tree
 104 objc_rewrite_function_call (tree function, tree ARG_UNUSED (first_param))
 105 {
 106   return function;
 107 }
 108
 109 tree
 110 objc_message_selector (void)
 111 {
 112   return 0;
 113 }
 114
 115 void
 116 objc_declare_alias (tree ARG_UNUSED (alias), tree ARG_UNUSED (orig))
 117 {
 118 }
 119
 120 void
 121 objc_declare_class (tree ARG_UNUSED (identifier))
 122 {
 123 }
 124
 125 void
 126 objc_declare_protocol (tree ARG_UNUSED (name), tree ARG_UNUSED (attributes))
 127 {
 128 }
 129
 130 void
 131 objc_start_protocol (tree ARG_UNUSED (proto),
 132                      tree ARG_UNUSED (protorefs),
 133                      tree ARG_UNUSED (attribs))
 134 {
 135 }
 136
 137 void
 138 objc_set_method_opt (bool ARG_UNUSED (optional))
 139 {
 140 }
 141
 142 void
 143 objc_start_class_interface (tree ARG_UNUSED (name),
 144                             tree ARG_UNUSED (super),
 145                             tree ARG_UNUSED (protos),
 146                             tree ARG_UNUSED (attribs))
 147 {
 148 }
 149
 150 void
 151 objc_start_category_interface (tree ARG_UNUSED (name),
 152                                tree ARG_UNUSED (categ),
 153                                tree ARG_UNUSED (protos),
 154                                tree ARG_UNUSED (attribs))
 155 {
 156 }
 157
 158 void
 159 objc_continue_interface (void)
 160 {
 161 }
 162
 163 void
 164 objc_finish_interface (void)
 165 {
 166 }
 167
 168 void
 169 objc_add_instance_variable (tree ARG_UNUSED (decl))
 170 {
 171 }
 172
 173 void
 174 objc_set_visibility (objc_ivar_visibility_kind ARG_UNUSED (vis))
 175 {
 176 }
 177
 178 void
 179 objc_start_class_implementation (tree ARG_UNUSED (name),
 180                                  tree ARG_UNUSED (super))
 181 {
 182 }
 183
 184 void
 185 objc_start_category_implementation (tree ARG_UNUSED (name),
 186                                     tree ARG_UNUSED (categ))
 187 {
 188 }
 189
 190 void
 191 objc_continue_implementation (void)
 192 {
 193 }
 194
 195 void
 196 objc_clear_super_receiver (void)
 197 {
 198 }
 199
 200 void
 201 objc_finish_implementation (void)
 202 {
 203 }
 204
 205 void
 206 objc_add_method_declaration (bool ARG_UNUSED (is_class_method),
 207                              tree ARG_UNUSED (signature),
 208                              tree ARG_UNUSED (attributes))
 209 {
 210 }
 211
 212 bool
 213 objc_start_method_definition (bool ARG_UNUSED (is_class_method),
 214                               tree ARG_UNUSED (signature),
 215                               tree ARG_UNUSED (attributes),
 216                               tree ARG_UNUSED (expr))
 217 {
 218   return true;
 219 }
 220
 221 void
 222 objc_finish_method_definition (tree ARG_UNUSED (fndecl))
 223 {
 224 }
 225
 226 bool
 227 objc_method_decl (enum tree_code ARG_UNUSED(opcode))
 228 {
 229   return false;
 230 }
 231
 232 tree
 233 objc_build_keyword_decl (tree ARG_UNUSED (selector),
 234                          tree ARG_UNUSED (type),
 235                          tree ARG_UNUSED (identifier),
 236                          tree ARG_UNUSED (attributes))
 237 {
 238   return 0;
 239 }
 240
 241 tree
 242 objc_build_method_signature (bool ARG_UNUSED (is_class_method),
 243                              tree ARG_UNUSED (rettype),
 244                              tree ARG_UNUSED (selectors),
 245                              tree ARG_UNUSED (optparms),
 246                              bool ARG_UNUSED (ellipsis))
 247 {
 248   return 0;
 249 }
 250
 251 tree
 252 objc_build_encode_expr (tree ARG_UNUSED (expr))
 253 {
 254   return 0;
 255 }
 256
 257 tree
 258 objc_build_protocol_expr (tree ARG_UNUSED (expr))
 259 {
 260   return 0;
 261 }
 262
 263 tree
 264 objc_build_selector_expr (location_t ARG_UNUSED (loc), tree ARG_UNUSED (expr))
 265 {
 266   return 0;
 267 }
 268
 269 tree
 270 objc_build_message_expr (tree ARG_UNUSED (receiver), tree ARG_UNUSED (args))
 271 {
 272   return 0;
 273 }
 274
 275 tree
 276 objc_build_string_object (tree ARG_UNUSED (str))
 277 {
 278   return 0;
 279 }
 280
 281 tree
 282 objc_get_class_reference (tree ARG_UNUSED (name))
 283 {
 284   return 0;
 285 }
 286
 287 bool
 288 objc_detect_field_duplicates (bool ARG_UNUSED (check_superclasses_only))
 289 {
 290   return false;
 291 }
 292
 293 tree
 294 objc_get_protocol_qualified_type (tree ARG_UNUSED (name),
 295                                   tree ARG_UNUSED (protos))
 296 {
 297   return 0;
 298 }
 299
 300 int
 301 objc_static_init_needed_p (void)
 302 {
 303   return 0;
 304 }
 305
 306 tree
 307 objc_generate_static_init_call (tree ARG_UNUSED (ctors))
 308 {
 309   return 0;
 310 }
 311
 312 int
 313 objc_is_public (tree ARG_UNUSED (expr), tree ARG_UNUSED (identifier))
 314 {
 315   return 1;
 316 }
 317
 318 tree
 319 objc_get_class_ivars (tree ARG_UNUSED (name))
 320 {
 321   return 0;
 322 }
 323
 324 void
 325 objc_add_property_declaration (location_t ARG_UNUSED (location),
 326                                tree ARG_UNUSED (decl),
 327                                bool ARG_UNUSED (parsed_property_readonly),
 328                                bool ARG_UNUSED (parsed_property_readwrite),
 329                                bool ARG_UNUSED (parsed_property_assign),
 330                                bool ARG_UNUSED (parsed_property_retain),
 331                                bool ARG_UNUSED (parsed_property_copy),
 332                                bool ARG_UNUSED (parsed_property_nonatomic),
 333                                tree ARG_UNUSED (parsed_property_getter_ident),
 334                                tree ARG_UNUSED (parsed_property_setter_ident))
 335 {
 336 }
 337
 338 bool
 339 objc_is_property_ref (tree ARG_UNUSED (node))
 340 {
 341   return 0;
 342 }
 343
 344 tree
 345 objc_maybe_build_component_ref (tree ARG_UNUSED (datum), tree ARG_UNUSED (component))
 346 {
 347   return 0;
 348 }
 349
 350 tree
 351 objc_build_class_component_ref (tree ARG_UNUSED (datum), tree ARG_UNUSED (component))
 352 {
 353   return 0;
 354 }
 355
 356 tree
 357 objc_maybe_build_modify_expr (tree ARG_UNUSED (lhs), tree ARG_UNUSED (rhs))
 358 {
 359   return 0;
 360 }
 361
 362 tree
 363 objc_build_incr_expr_for_property_ref (location_t ARG_UNUSED (location),
 364                                        enum tree_code ARG_UNUSED (code),
 365                                        tree ARG_UNUSED (argument),
 366                                        tree ARG_UNUSED (increment))
 367 {
 368   return 0;
 369 }
 370
 371 void
 372 objc_add_synthesize_declaration (location_t ARG_UNUSED (start_locus),
 373                                  tree ARG_UNUSED (property_and_ivar_list))
 374 {
 375 }
 376
 377 void
 378 objc_add_dynamic_declaration (location_t ARG_UNUSED (start_locus),
 379                               tree ARG_UNUSED (property_list))
 380 {
 381 }
 382
 383 const char *
 384 objc_maybe_printable_name (tree ARG_UNUSED (decl),
 385                            int ARG_UNUSED (v))
 386 {
 387   return NULL;
 388 }
 389
 390 tree
 391 objc_build_throw_stmt (location_t ARG_UNUSED (loc), tree ARG_UNUSED (expr))
 392 {
 393   return 0;
 394 }
 395
 396 tree
 397 objc_build_synchronized (location_t ARG_UNUSED (start_locus),
 398                          tree ARG_UNUSED (mutex), tree ARG_UNUSED (body))
 399 {
 400   return 0;
 401 }
 402
 403 void
 404 objc_begin_try_stmt (location_t ARG_UNUSED (try_locus), tree ARG_UNUSED (body))
 405 {
 406 }
 407
 408 void
 409 objc_begin_catch_clause (tree ARG_UNUSED (decl))
 410 {
 411 }
 412
 413 void
 414 objc_finish_catch_clause (void)
 415 {
 416 }
 417
 418 void
 419 objc_build_finally_clause (location_t ARG_UNUSED (finally_locus),
 420                            tree ARG_UNUSED (body))
 421 {
 422 }
 423
 424 tree
 425 objc_finish_try_stmt (void)
 426 {
 427   return 0;
 428 }
 429
 430 tree
 431 objc_generate_write_barrier (tree ARG_UNUSED (lhs),
 432                              enum tree_code ARG_UNUSED (modifycode),
 433                              tree ARG_UNUSED (rhs))
 434 {
 435   return 0;
 436 }
 437
 438 void
 439 objc_finish_foreach_loop (location_t ARG_UNUSED (location), tree ARG_UNUSED (object_expression),
 440                           tree ARG_UNUSED (collection_expression), tree ARG_UNUSED (for_body),
 441                           tree ARG_UNUSED (break_label), tree ARG_UNUSED (continue_label))
 442 {
 443   return;
 444 }
 445
 446 void
 447 objc_write_global_declarations (void)
 448 {
 449 }
 450
 451 bool
 452 objc_string_ref_type_p (tree ARG_UNUSED (strp))
 453 {
 454    return false;
 455 }
 456
 457 void
 458 objc_check_format_arg (tree ARG_UNUSED (format_arg),
 459                        tree ARG_UNUSED (args_list))
 460 {
 461 }
 462
 463 void
 464 objc_finish_function (void)
 465 {
 466 }
 467
 468 void
 469 objc_maybe_warn_exceptions (location_t ARG_UNUSED (loc))
 470 {
 471 }