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