1 /* Declarations for objc-act.c. 2 Copyright (C) 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 3 2010, 2011 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 22 #ifndef GCC_OBJC_ACT_H 23 #define GCC_OBJC_ACT_H 24 25 /*** Language hooks ***/ 26 27 bool objc_init (void); 28 const char *objc_printable_name (tree, int); 29 int objc_gimplify_expr (tree *, gimple_seq *, gimple_seq *); 30 void objc_common_init_ts (void); 31 32 /* NB: The remaining public functions are prototyped in c-common.h, for the 33 benefit of stub-objc.c and objc-act.c. */ 34 35 /* Objective-C structures */ 36 37 #define CLASS_LANG_SLOT_ELTS 7 38 #define PROTOCOL_LANG_SLOT_ELTS 7 39 #define OBJC_INFO_SLOT_ELTS 2 40 41 /* KEYWORD_DECL */ 42 #define KEYWORD_KEY_NAME(DECL) ((DECL)->decl_minimal.name) 43 #define KEYWORD_ARG_NAME(DECL) ((DECL)->decl_non_common.arguments) 44 45 /* INSTANCE_METHOD_DECL, CLASS_METHOD_DECL */ 46 #define METHOD_SEL_NAME(DECL) ((DECL)->decl_minimal.name) 47 #define METHOD_SEL_ARGS(DECL) ((DECL)->decl_non_common.arguments) 48 #define METHOD_ADD_ARGS(DECL) ((DECL)->decl_non_common.result) 49 #define METHOD_ADD_ARGS_ELLIPSIS_P(DECL) ((DECL)->decl_common.lang_flag_0) 50 #define METHOD_DEFINITION(DECL) ((DECL)->decl_common.initial) 51 #define METHOD_ENCODING(DECL) ((DECL)->decl_minimal.context) 52 #define METHOD_TYPE_ATTRIBUTES(DECL) ((DECL)->decl_common.abstract_origin) 53 #define METHOD_PROPERTY_CONTEXT(DECL) ((DECL)->decl_common.size_unit) 54 55 56 /* PROPERTY_DECL. A PROPERTY_DECL repesents a @property declaration 57 (when attached to the list of properties of an interface) or a 58 @synthesize or @dynamic declaration (when attached to the list of 59 properties of an implementation). */ 60 61 /* TREE_TYPE is the type (int, float, etc) of the property. */ 62 63 /* DECL_ARTIFICIAL is set to 1 if the PROPERTY_DECL is an artificial 64 property declaration created when the dot-syntax object.component 65 is used with no actual @property matching the component, but a 66 valid getter/setter. */ 67 68 /* PROPERTY_NAME is the name of the property. */ 69 #define PROPERTY_NAME(DECL) DECL_NAME(DECL) 70 71 /* PROPERTY_GETTER_NAME is the identifier of the getter method. */ 72 #define PROPERTY_GETTER_NAME(DECL) ((DECL)->decl_non_common.arguments) 73 74 /* PROPERTY_SETTER_NAME is the identifier of the setter method. */ 75 #define PROPERTY_SETTER_NAME(DECL) ((DECL)->decl_non_common.result) 76 77 /* PROPERTY_READONLY can be 0 or 1. */ 78 #define PROPERTY_READONLY(DECL) DECL_LANG_FLAG_0 (DECL) 79 80 /* PROPERTY_NONATOMIC can be 0 or 1. */ 81 #define PROPERTY_NONATOMIC(DECL) DECL_LANG_FLAG_1 (DECL) 82 83 typedef enum objc_property_assign_semantics { 84 OBJC_PROPERTY_ASSIGN = 1, 85 OBJC_PROPERTY_RETAIN = 2, 86 OBJC_PROPERTY_COPY = 3 87 } objc_property_assign_semantics; 88 89 /* PROPERTY_ASSIGN_SEMANTICS can be OBJC_PROPERTY_ASSIGN, 90 OBJC_PROPERTY_RETAIN or OBJC_PROPERTY_COPY. We need an integer to 91 store it, so we hijack the alignment, that properties don't 92 have. */ 93 #define PROPERTY_ASSIGN_SEMANTICS(DECL) ((DECL)->decl_common.align) 94 95 /* PROPERTY_IVAR_NAME is the identifier of the instance variable. 96 This is set only if the PROPERTY_DECL represents a @synthesize; 97 otherwise, it is set to TREE_NULL. */ 98 #define PROPERTY_IVAR_NAME(DECL) ((DECL)->decl_common.initial) 99 100 /* PROPERTY_DYNAMIC can be 0 or 1. This is 1 if the PROPERTY_DECL 101 represents a @dynamic; otherwise, it is set to 0. */ 102 #define PROPERTY_DYNAMIC(DECL) DECL_LANG_FLAG_2 (DECL) 103 104 /* PROPERTY_HAS_NO_GETTER can be 0 or 1. Normally it is 0, but if 105 this is an artificial PROPERTY_DECL that we generate even without a 106 getter, it is set to 1. */ 107 #define PROPERTY_HAS_NO_GETTER(DECL) DECL_LANG_FLAG_3 (DECL) 108 109 /* PROPERTY_HAS_NO_SETTER can be 0 or 1. Normally it is 0, but if 110 this is an artificial PROPERTY_DECL that we generate even without a 111 setter, it is set to 1. */ 112 #define PROPERTY_HAS_NO_SETTER(DECL) DECL_LANG_FLAG_4 (DECL) 113 114 /* PROPERTY_OPTIONAL can be 0 or 1. Normally it is 0, but if this is 115 a property declared as @optional in a @protocol, then it is set to 116 1. */ 117 #define PROPERTY_OPTIONAL(DECL) DECL_LANG_FLAG_5 (DECL) 118 119 /* PROPERTY_REF. A PROPERTY_REF represents an 'object.property' 120 expression. It is normally used for property access, but when 121 the Objective-C 2.0 "dot-syntax" (object.component) is used 122 with no matching property, a PROPERTY_REF is still created to 123 represent it, with an artificial PROPERTY_DECL. */ 124 125 /* PROPERTY_REF_OBJECT is the object whose property we are 126 accessing. */ 127 #define PROPERTY_REF_OBJECT(NODE) TREE_OPERAND (PROPERTY_REF_CHECK (NODE), 0) 128 129 /* PROPERTY_REF_PROPERTY_DECL is the PROPERTY_DECL for the property 130 used in the expression. From it, you can get the property type, 131 and the getter/setter names. This PROPERTY_DECL could be artificial 132 if we are processing an 'object.component' syntax with no matching 133 declared property. */ 134 #define PROPERTY_REF_PROPERTY_DECL(NODE) TREE_OPERAND (PROPERTY_REF_CHECK (NODE), 1) 135 136 /* PROPERTY_REF_GETTER_CALL is the getter call expression, ready to 137 use at gimplify time if needed. Generating the getter call 138 requires modifying the selector table, and, in the case of 139 self/super, requires the context to be generated correctly. The 140 gimplify stage is too late to do these things, so we generate the 141 getter call earlier instead, and keep it here in case we need to 142 use it. */ 143 #define PROPERTY_REF_GETTER_CALL(NODE) TREE_OPERAND (PROPERTY_REF_CHECK (NODE), 2) 144 145 /* PROPERTY_REF_DEPRECATED_GETTER is normally set to NULL_TREE. If 146 the property getter is deprecated, it is set to the method 147 prototype for it, which is used to generate the deprecation warning 148 when the getter is used. */ 149 #define PROPERTY_REF_DEPRECATED_GETTER(NODE) TREE_OPERAND (PROPERTY_REF_CHECK (NODE), 3) 150 151 /* CLASS_INTERFACE_TYPE, CLASS_IMPLEMENTATION_TYPE, 152 CATEGORY_INTERFACE_TYPE, CATEGORY_IMPLEMENTATION_TYPE, 153 PROTOCOL_INTERFACE_TYPE */ 154 /* CLASS_NAME is the name of the class. */ 155 #define CLASS_NAME(CLASS) (TYPE_NAME (CLASS)) 156 /* CLASS_SUPER_NAME is the name of the superclass, or, in the case of 157 categories, it is the name of the category itself. */ 158 #define CLASS_SUPER_NAME(CLASS) (TYPE_CONTEXT (CLASS)) 159 #define CLASS_IVARS(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 0) 160 #define CLASS_RAW_IVARS(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 1) 161 #define CLASS_NST_METHODS(CLASS) (TYPE_MINVAL (CLASS)) 162 #define CLASS_CLS_METHODS(CLASS) (TYPE_MAXVAL (CLASS)) 163 #define CLASS_STATIC_TEMPLATE(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 2) 164 #define CLASS_CATEGORY_LIST(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 3) 165 #define CLASS_PROTOCOL_LIST(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 4) 166 #define TOTAL_CLASS_RAW_IVARS(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 5) 167 #define CLASS_HAS_EXCEPTION_ATTR(CLASS) (TYPE_LANG_FLAG_0 (CLASS)) 168 169 #define PROTOCOL_NAME(CLASS) (TYPE_NAME (CLASS)) 170 #define PROTOCOL_LIST(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 0) 171 #define PROTOCOL_NST_METHODS(CLASS) (TYPE_MINVAL (CLASS)) 172 #define PROTOCOL_CLS_METHODS(CLASS) (TYPE_MAXVAL (CLASS)) 173 #define PROTOCOL_FORWARD_DECL(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 1) 174 #define PROTOCOL_DEFINED(CLASS) TREE_USED (CLASS) 175 #define PROTOCOL_OPTIONAL_CLS_METHODS(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 2) 176 #define PROTOCOL_OPTIONAL_NST_METHODS(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 3) 177 178 /* For CATEGORY_INTERFACE_TYPE, CLASS_INTERFACE_TYPE or PROTOCOL_INTERFACE_TYPE */ 179 #define CLASS_PROPERTY_DECL(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 6) 180 /* For CLASS_IMPLEMENTATION_TYPE or CATEGORY_IMPLEMENTATION_TYPE. */ 181 #define IMPL_PROPERTY_DECL(CLASS) TREE_VEC_ELT (TYPE_LANG_SLOT_1 (CLASS), 6) 182 183 /* TREE_DEPRECATED is used for a CLASS_INTERFACE_TYPE or PROTOCOL_INTERFACE_TYPE. */ 184 185 /* TYPE_ATTRIBUTES is used for a CLASS_INTERFACE_TYPE or PROTOCOL_INTERFACE_TYPE. */ 186 187 /* ObjC-specific information pertaining to RECORD_TYPEs are stored in 188 the LANG_SPECIFIC structures, which may itself need allocating first. */ 189 190 /* The following three macros must be overridden (in objcp/objcp-decl.h) 191 for Objective-C++. */ 192 #define TYPE_OBJC_INFO(TYPE) TYPE_LANG_SPECIFIC (TYPE)->objc_info 193 #define SIZEOF_OBJC_TYPE_LANG_SPECIFIC sizeof (struct lang_type) 194 #define ALLOC_OBJC_TYPE_LANG_SPECIFIC(NODE) \ 195 do { \ 196 TYPE_LANG_SPECIFIC (NODE) \ 197 = ggc_alloc_cleared_lang_type (sizeof (struct lang_type)); \ 198 } while (0) 199 200 #define TYPE_HAS_OBJC_INFO(TYPE) \ 201 (TYPE_LANG_SPECIFIC (TYPE) && TYPE_OBJC_INFO (TYPE)) 202 #define TYPE_OBJC_INTERFACE(TYPE) TREE_VEC_ELT (TYPE_OBJC_INFO (TYPE), 0) 203 #define TYPE_OBJC_PROTOCOL_LIST(TYPE) TREE_VEC_ELT (TYPE_OBJC_INFO (TYPE), 1) 204 205 206 #define INIT_TYPE_OBJC_INFO(TYPE) \ 207 do \ 208 { \ 209 if (!TYPE_LANG_SPECIFIC (TYPE)) \ 210 ALLOC_OBJC_TYPE_LANG_SPECIFIC(TYPE); \ 211 if (!TYPE_OBJC_INFO (TYPE)) \ 212 TYPE_OBJC_INFO (TYPE) \ 213 = make_tree_vec (OBJC_INFO_SLOT_ELTS); \ 214 } \ 215 while (0) 216 217 #define DUP_TYPE_OBJC_INFO(DST, SRC) \ 218 do \ 219 { \ 220 ALLOC_OBJC_TYPE_LANG_SPECIFIC(DST); \ 221 if (TYPE_LANG_SPECIFIC (SRC)) \ 222 memcpy (TYPE_LANG_SPECIFIC (DST), \ 223 TYPE_LANG_SPECIFIC (SRC), \ 224 SIZEOF_OBJC_TYPE_LANG_SPECIFIC); \ 225 TYPE_OBJC_INFO (DST) \ 226 = make_tree_vec (OBJC_INFO_SLOT_ELTS); \ 227 } \ 228 while (0) 229 230 #define TYPED_OBJECT(TYPE) \ 231 (TREE_CODE (TYPE) == RECORD_TYPE \ 232 && TYPE_HAS_OBJC_INFO (TYPE) \ 233 && TYPE_OBJC_INTERFACE (TYPE)) 234 #define OBJC_TYPE_NAME(TYPE) TYPE_NAME(TYPE) 235 #define OBJC_SET_TYPE_NAME(TYPE, NAME) (TYPE_NAME (TYPE) = NAME) 236 237 /* Hash tables to manage the global pool of method prototypes. */ 238 239 typedef struct hashed_entry *hash; 240 typedef struct hashed_attribute *attr; 241 242 struct GTY(()) hashed_attribute { 243 attr next; 244 tree value; 245 }; 246 247 struct GTY(()) hashed_entry { 248 attr list; 249 hash next; 250 tree key; 251 }; 252 253 #define SIZEHASHTABLE 257 254 255 /* An array of all the local variables in the current function that 256 need to be marked as volatile. */ 257 extern GTY(()) VEC(tree,gc) *local_variables_to_volatilize; 258 259 /* Objective-C/Objective-C++ @implementation list. */ 260 261 struct GTY(()) imp_entry { 262 struct imp_entry *next; 263 tree imp_context; 264 tree imp_template; 265 tree class_decl; /* _OBJC[_v2]_CLASS/CATEGORY_<my_name>; */ 266 tree meta_decl; /* _OBJC[_v2]_METACLASS_<my_name>; */ 267 BOOL_BITFIELD has_cxx_cdtors : 1; 268 }; 269 270 extern GTY(()) struct imp_entry *imp_list; 271 extern GTY(()) int imp_count; /* `@implementation' */ 272 extern GTY(()) int cat_count; /* `@category' */ 273 274 extern GTY(()) objc_ivar_visibility_kind objc_ivar_visibility; 275 276 /* Objective-C/Objective-C++ global tree enumeration. */ 277 278 enum objc_tree_index 279 { 280 OCTI_STATIC_NST, 281 OCTI_STATIC_NST_DECL, 282 OCTI_SELF_ID, 283 OCTI_UCMD_ID, 284 285 OCTI_SELF_DECL, 286 OCTI_UMSG_DECL, 287 OCTI_UMSG_FAST_DECL, 288 OCTI_UMSG_SUPER_DECL, 289 OCTI_UMSG_STRET_DECL, 290 OCTI_UMSG_SUPER_STRET_DECL, 291 OCTI_GET_CLASS_DECL, 292 OCTI_GET_MCLASS_DECL, 293 OCTI_SUPER_TYPE, 294 OCTI_SEL_TYPE, 295 OCTI_ID_TYPE, 296 OCTI_CLS_TYPE, 297 OCTI_NST_TYPE, 298 OCTI_PROTO_TYPE, 299 300 OCTI_INTF_CHAIN, 301 OCTI_PROTO_CHAIN, 302 OCTI_IMPL_CHAIN, 303 OCTI_CLS_REF_CHAIN, 304 OCTI_SEL_REF_CHAIN, 305 OCTI_IVAR_CHAIN, 306 OCTI_CLS_NAMES_CHAIN, 307 OCTI_METH_VAR_NAMES_CHAIN, 308 OCTI_METH_VAR_TYPES_CHAIN, 309 310 OCTI_SYMBOLS_DECL, 311 OCTI_NST_VAR_DECL, 312 OCTI_CLS_VAR_DECL, 313 OCTI_NST_METH_DECL, 314 OCTI_CLS_METH_DECL, 315 OCTI_CLS_DECL, 316 OCTI_MCLS_DECL, 317 OCTI_SEL_TABLE_DECL, 318 OCTI_MODULES_DECL, 319 OCTI_GNU_INIT_DECL, 320 321 OCTI_INTF_CTX, 322 OCTI_IMPL_CTX, 323 OCTI_METH_CTX, 324 OCTI_IVAR_CTX, 325 326 OCTI_IMPL_TEMPL, 327 OCTI_CLS_TEMPL, 328 OCTI_CAT_TEMPL, 329 OCTI_UPRIV_REC, 330 OCTI_PROTO_TEMPL, 331 OCTI_SEL_TEMPL, 332 OCTI_UCLS_SUPER_REF, 333 OCTI_UUCLS_SUPER_REF, 334 OCTI_METH_TEMPL, 335 OCTI_IVAR_TEMPL, 336 OCTI_METH_LIST_TEMPL, 337 OCTI_METH_PROTO_LIST_TEMPL, 338 OCTI_IVAR_LIST_TEMPL, 339 OCTI_SYMTAB_TEMPL, 340 OCTI_MODULE_TEMPL, 341 OCTI_SUPER_TEMPL, 342 OCTI_OBJ_REF, 343 OCTI_CLS_REF, 344 OCTI_METH_PROTO_TEMPL, 345 OCTI_FUNCTION1_TEMPL, 346 OCTI_FUNCTION2_TEMPL, 347 348 OCTI_OBJ_ID, 349 OCTI_CLS_ID, 350 OCTI_ID_NAME, 351 OCTI_CLASS_NAME, 352 OCTI_CNST_STR_ID, 353 OCTI_CNST_STR_TYPE, 354 OCTI_CNST_STR_GLOB_ID, 355 OCTI_STRING_CLASS_DECL, 356 OCTI_INTERNAL_CNST_STR_TYPE, 357 OCTI_SUPER_DECL, 358 OCTI_SUPER_SUPERFIELD_ID, 359 OCTI_UMSG_NONNIL_DECL, 360 OCTI_UMSG_NONNIL_STRET_DECL, 361 OCTI_STORAGE_CLS, 362 OCTI_EXCEPTION_EXTRACT_DECL, 363 OCTI_EXCEPTION_TRY_ENTER_DECL, 364 OCTI_EXCEPTION_TRY_EXIT_DECL, 365 OCTI_EXCEPTION_MATCH_DECL, 366 OCTI_EXCEPTION_THROW_DECL, 367 OCTI_SYNC_ENTER_DECL, 368 OCTI_SYNC_EXIT_DECL, 369 OCTI_SETJMP_DECL, 370 OCTI_EXCDATA_TEMPL, 371 OCTI_STACK_EXCEPTION_DATA_DECL, 372 OCTI_LOCAL_EXCEPTION_DECL, 373 OCTI_RETHROW_EXCEPTION_DECL, 374 OCTI_EVAL_ONCE_DECL, 375 OCTI_CATCH_TYPE, 376 OCTI_EXECCLASS_DECL, 377 378 OCTI_ASSIGN_IVAR_DECL, 379 OCTI_ASSIGN_IVAR_FAST_DECL, 380 OCTI_ASSIGN_GLOBAL_DECL, 381 OCTI_ASSIGN_STRONGCAST_DECL, 382 383 OCTI_FAST_ENUM_STATE_TEMP, 384 OCTI_ENUM_MUTATION_DECL, 385 386 OCTI_GET_PROPERTY_DECL, 387 OCTI_SET_PROPERTY_DECL, 388 OCTI_COPY_STRUCT_DECL, 389 OCTI_GET_PROPERTY_STRUCT_DECL, 390 OCTI_SET_PROPERTY_STRUCT_DECL, 391 392 /* TODO: Add comment. */ 393 /* "V1" stuff. */ 394 OCTI_V1_PROP_LIST_TEMPL, 395 OCTI_V1_PROP_NAME_ATTR_CHAIN, 396 397 OCTI_MAX 398 }; 399 400 extern GTY(()) tree objc_global_trees[OCTI_MAX]; 401 402 /* List of classes with list of their static instances. */ 403 #define objc_static_instances objc_global_trees[OCTI_STATIC_NST] 404 405 /* The declaration of the array administrating the static instances. */ 406 #define static_instances_decl objc_global_trees[OCTI_STATIC_NST_DECL] 407 408 /* Some commonly used instances of "identifier_node". */ 409 410 #define self_id objc_global_trees[OCTI_SELF_ID] 411 #define ucmd_id objc_global_trees[OCTI_UCMD_ID] 412 413 #define self_decl objc_global_trees[OCTI_SELF_DECL] 414 #define umsg_decl objc_global_trees[OCTI_UMSG_DECL] 415 #define umsg_fast_decl objc_global_trees[OCTI_UMSG_FAST_DECL] 416 #define umsg_super_decl objc_global_trees[OCTI_UMSG_SUPER_DECL] 417 #define umsg_stret_decl objc_global_trees[OCTI_UMSG_STRET_DECL] 418 #define umsg_super_stret_decl objc_global_trees[OCTI_UMSG_SUPER_STRET_DECL] 419 #define objc_get_class_decl objc_global_trees[OCTI_GET_CLASS_DECL] 420 #define objc_get_meta_class_decl \ 421 objc_global_trees[OCTI_GET_MCLASS_DECL] 422 423 #define objc_super_type objc_global_trees[OCTI_SUPER_TYPE] 424 #define objc_selector_type objc_global_trees[OCTI_SEL_TYPE] 425 #define objc_object_type objc_global_trees[OCTI_ID_TYPE] 426 #define objc_class_type objc_global_trees[OCTI_CLS_TYPE] 427 #define objc_instance_type objc_global_trees[OCTI_NST_TYPE] 428 #define objc_protocol_type objc_global_trees[OCTI_PROTO_TYPE] 429 430 /* Type checking macros. */ 431 432 #define IS_ID(TYPE) \ 433 (TREE_CODE (TYPE) == POINTER_TYPE \ 434 && (TYPE_MAIN_VARIANT (TREE_TYPE (TYPE)) \ 435 == TREE_TYPE (objc_object_type))) 436 437 #define IS_CLASS(TYPE) \ 438 (TREE_CODE (TYPE) == POINTER_TYPE \ 439 && (TYPE_MAIN_VARIANT (TREE_TYPE (TYPE)) \ 440 == TREE_TYPE (objc_class_type))) 441 442 #define IS_PROTOCOL_QUALIFIED_UNTYPED(TYPE) \ 443 ((IS_ID (TYPE) || IS_CLASS (TYPE)) \ 444 && TYPE_HAS_OBJC_INFO (TREE_TYPE (TYPE)) \ 445 && TYPE_OBJC_PROTOCOL_LIST (TREE_TYPE (TYPE))) 446 447 #define IS_SUPER(TYPE) \ 448 (TREE_CODE (TYPE) == POINTER_TYPE \ 449 && TREE_TYPE (TYPE) == objc_super_template) 450 451 #define interface_chain objc_global_trees[OCTI_INTF_CHAIN] 452 #define protocol_chain objc_global_trees[OCTI_PROTO_CHAIN] 453 #define implemented_classes objc_global_trees[OCTI_IMPL_CHAIN] 454 455 /* Chains to manage selectors that are referenced and defined in the 456 module. */ 457 458 #define cls_ref_chain objc_global_trees[OCTI_CLS_REF_CHAIN] /* Classes referenced. */ 459 #define sel_ref_chain objc_global_trees[OCTI_SEL_REF_CHAIN] /* Selectors referenced. */ 460 #define objc_ivar_chain objc_global_trees[OCTI_IVAR_CHAIN] 461 462 /* Chains to manage uniquing of strings. */ 463 464 #define class_names_chain objc_global_trees[OCTI_CLS_NAMES_CHAIN] 465 #define meth_var_names_chain objc_global_trees[OCTI_METH_VAR_NAMES_CHAIN] 466 #define meth_var_types_chain objc_global_trees[OCTI_METH_VAR_TYPES_CHAIN] 467 468 469 /* Backend data declarations. */ 470 471 #define UOBJC_SYMBOLS_decl objc_global_trees[OCTI_SYMBOLS_DECL] 472 #define UOBJC_INSTANCE_VARIABLES_decl objc_global_trees[OCTI_NST_VAR_DECL] 473 #define UOBJC_CLASS_VARIABLES_decl objc_global_trees[OCTI_CLS_VAR_DECL] 474 #define UOBJC_INSTANCE_METHODS_decl objc_global_trees[OCTI_NST_METH_DECL] 475 #define UOBJC_CLASS_METHODS_decl objc_global_trees[OCTI_CLS_METH_DECL] 476 #define UOBJC_CLASS_decl objc_global_trees[OCTI_CLS_DECL] 477 #define UOBJC_METACLASS_decl objc_global_trees[OCTI_MCLS_DECL] 478 #define UOBJC_SELECTOR_TABLE_decl objc_global_trees[OCTI_SEL_TABLE_DECL] 479 #define UOBJC_MODULES_decl objc_global_trees[OCTI_MODULES_DECL] 480 #define GNU_INIT_decl objc_global_trees[OCTI_GNU_INIT_DECL] 481 482 /* The following are used when compiling a class implementation. 483 implementation_template will normally be an interface, however if 484 none exists this will be equal to objc_implementation_context...it is 485 set in start_class. */ 486 487 #define objc_interface_context objc_global_trees[OCTI_INTF_CTX] 488 #define objc_implementation_context objc_global_trees[OCTI_IMPL_CTX] 489 #define objc_method_context objc_global_trees[OCTI_METH_CTX] 490 #define objc_ivar_context objc_global_trees[OCTI_IVAR_CTX] 491 492 #define implementation_template objc_global_trees[OCTI_IMPL_TEMPL] 493 #define objc_class_template objc_global_trees[OCTI_CLS_TEMPL] 494 #define objc_category_template objc_global_trees[OCTI_CAT_TEMPL] 495 #define uprivate_record objc_global_trees[OCTI_UPRIV_REC] 496 #define objc_protocol_template objc_global_trees[OCTI_PROTO_TEMPL] 497 #define objc_selector_template objc_global_trees[OCTI_SEL_TEMPL] 498 #define ucls_super_ref objc_global_trees[OCTI_UCLS_SUPER_REF] 499 #define uucls_super_ref objc_global_trees[OCTI_UUCLS_SUPER_REF] 500 501 #define umsg_nonnil_decl objc_global_trees[OCTI_UMSG_NONNIL_DECL] 502 #define umsg_nonnil_stret_decl objc_global_trees[OCTI_UMSG_NONNIL_STRET_DECL] 503 #define objc_storage_class objc_global_trees[OCTI_STORAGE_CLS] 504 #define objc_exception_extract_decl \ 505 objc_global_trees[OCTI_EXCEPTION_EXTRACT_DECL] 506 #define objc_exception_try_enter_decl \ 507 objc_global_trees[OCTI_EXCEPTION_TRY_ENTER_DECL] 508 #define objc_exception_try_exit_decl \ 509 objc_global_trees[OCTI_EXCEPTION_TRY_EXIT_DECL] 510 #define objc_exception_match_decl \ 511 objc_global_trees[OCTI_EXCEPTION_MATCH_DECL] 512 #define objc_exception_throw_decl \ 513 objc_global_trees[OCTI_EXCEPTION_THROW_DECL] 514 #define objc_sync_enter_decl objc_global_trees[OCTI_SYNC_ENTER_DECL] 515 #define objc_sync_exit_decl objc_global_trees[OCTI_SYNC_EXIT_DECL] 516 #define objc_exception_data_template \ 517 objc_global_trees[OCTI_EXCDATA_TEMPL] 518 #define objc_setjmp_decl objc_global_trees[OCTI_SETJMP_DECL] 519 #define objc_stack_exception_data \ 520 objc_global_trees[OCTI_STACK_EXCEPTION_DATA_DECL] 521 #define objc_caught_exception objc_global_trees[OCTI_LOCAL_EXCEPTION_DECL] 522 #define objc_rethrow_exception objc_global_trees[OCTI_RETHROW_EXCEPTION_DECL] 523 #define objc_eval_once objc_global_trees[OCTI_EVAL_ONCE_DECL] 524 #define objc_catch_type objc_global_trees[OCTI_CATCH_TYPE] 525 526 #define execclass_decl objc_global_trees[OCTI_EXECCLASS_DECL] 527 528 #define objc_assign_ivar_decl objc_global_trees[OCTI_ASSIGN_IVAR_DECL] 529 #define objc_assign_ivar_fast_decl \ 530 objc_global_trees[OCTI_ASSIGN_IVAR_FAST_DECL] 531 #define objc_assign_global_decl objc_global_trees[OCTI_ASSIGN_GLOBAL_DECL] 532 #define objc_assign_strong_cast_decl \ 533 objc_global_trees[OCTI_ASSIGN_STRONGCAST_DECL] 534 535 #define objc_method_template objc_global_trees[OCTI_METH_TEMPL] 536 #define objc_ivar_template objc_global_trees[OCTI_IVAR_TEMPL] 537 #define objc_method_list_ptr objc_global_trees[OCTI_METH_LIST_TEMPL] 538 #define objc_method_proto_list_ptr \ 539 objc_global_trees[OCTI_METH_PROTO_LIST_TEMPL] 540 #define objc_ivar_list_ptr objc_global_trees[OCTI_IVAR_LIST_TEMPL] 541 #define objc_symtab_template objc_global_trees[OCTI_SYMTAB_TEMPL] 542 #define objc_module_template objc_global_trees[OCTI_MODULE_TEMPL] 543 #define objc_super_template objc_global_trees[OCTI_SUPER_TEMPL] 544 #define objc_object_reference objc_global_trees[OCTI_OBJ_REF] 545 #define objc_class_reference objc_global_trees[OCTI_CLS_REF] 546 #define objc_method_prototype_template \ 547 objc_global_trees[OCTI_METH_PROTO_TEMPL] 548 #define function1_template objc_global_trees[OCTI_FUNCTION1_TEMPL] 549 #define function2_template objc_global_trees[OCTI_FUNCTION2_TEMPL] 550 551 #define objc_object_id objc_global_trees[OCTI_OBJ_ID] 552 #define objc_class_id objc_global_trees[OCTI_CLS_ID] 553 #define objc_object_name objc_global_trees[OCTI_ID_NAME] 554 #define objc_class_name objc_global_trees[OCTI_CLASS_NAME] 555 556 /* Constant string classes. */ 557 #define constant_string_id objc_global_trees[OCTI_CNST_STR_ID] 558 #define constant_string_type objc_global_trees[OCTI_CNST_STR_TYPE] 559 #define constant_string_global_id \ 560 objc_global_trees[OCTI_CNST_STR_GLOB_ID] 561 #define string_class_decl objc_global_trees[OCTI_STRING_CLASS_DECL] 562 #define internal_const_str_type objc_global_trees[OCTI_INTERNAL_CNST_STR_TYPE] 563 564 #define UOBJC_SUPER_decl objc_global_trees[OCTI_SUPER_DECL] 565 #define super_superclassfield_id \ 566 objc_global_trees[OCTI_SUPER_SUPERFIELD_ID] 567 568 #define objc_fast_enumeration_state_template \ 569 objc_global_trees[OCTI_FAST_ENUM_STATE_TEMP] 570 #define objc_enumeration_mutation_decl \ 571 objc_global_trees[OCTI_ENUM_MUTATION_DECL] 572 573 /* Declarations of functions used when synthesizing property 574 accessors. */ 575 #define objc_getProperty_decl objc_global_trees[OCTI_GET_PROPERTY_DECL] 576 #define objc_setProperty_decl objc_global_trees[OCTI_SET_PROPERTY_DECL] 577 #define objc_copyStruct_decl objc_global_trees[OCTI_COPY_STRUCT_DECL] 578 #define objc_getPropertyStruct_decl \ 579 objc_global_trees[OCTI_GET_PROPERTY_STRUCT_DECL] 580 #define objc_setPropertyStruct_decl \ 581 objc_global_trees[OCTI_SET_PROPERTY_STRUCT_DECL] 582 583 /* TODO: Add comment. */ 584 /* V1 stuff. */ 585 #define objc_prop_list_ptr objc_global_trees[OCTI_V1_PROP_LIST_TEMPL] 586 #define prop_names_attr_chain objc_global_trees[OCTI_V1_PROP_NAME_ATTR_CHAIN] 587 588 /* Reserved tag definitions. */ 589 590 #define OBJECT_TYPEDEF_NAME "id" 591 #define CLASS_TYPEDEF_NAME "Class" 592 593 #define TAG_OBJECT "objc_object" 594 #define TAG_CLASS "objc_class" 595 #define TAG_SUPER "objc_super" 596 #define TAG_SELECTOR "objc_selector" 597 598 #define UTAG_CLASS "_objc_class" 599 #define UTAG_IVAR "_objc_ivar" 600 #define UTAG_IVAR_LIST "_objc_ivar_list" 601 #define UTAG_METHOD "_objc_method" 602 #define UTAG_METHOD_LIST "_objc_method_list" 603 #define UTAG_CATEGORY "_objc_category" 604 #define UTAG_MODULE "_objc_module" 605 #define UTAG_SYMTAB "_objc_symtab" 606 #define UTAG_SUPER "_objc_super" 607 #define UTAG_SELECTOR "_objc_selector" 608 609 #define UTAG_PROTOCOL "_objc_protocol" 610 #define UTAG_METHOD_PROTOTYPE "_objc_method_prototype" 611 #define UTAG_METHOD_PROTOTYPE_LIST "_objc__method_prototype_list" 612 613 #define PROTOCOL_OBJECT_CLASS_NAME "Protocol" 614 615 #define TAG_EXCEPTIONTHROW "objc_exception_throw" 616 #define TAG_SYNCENTER "objc_sync_enter" 617 #define TAG_SYNCEXIT "objc_sync_exit" 618 619 /* Really should be NeXT private. */ 620 #define UTAG_EXCDATA "_objc_exception_data" 621 622 #define TAG_CXX_CONSTRUCT ".cxx_construct" 623 #define TAG_CXX_DESTRUCT ".cxx_destruct" 624 625 #define TAG_ENUMERATION_MUTATION "objc_enumerationMutation" 626 #define TAG_FAST_ENUMERATION_STATE "__objcFastEnumerationState" 627 628 typedef enum string_section 629 { 630 class_names, /* class, category, protocol, module names */ 631 meth_var_names, /* method and variable names */ 632 meth_var_types, /* method and variable type descriptors */ 633 prop_names_attr /* property names and their attributes. */ 634 } string_section; 635 636 #define METHOD_DEF 0 637 #define METHOD_REF 1 638 639 #define BUFSIZE 1024 640 641 #define CLS_FACTORY 0x0001L 642 #define CLS_META 0x0002L 643 644 /* Runtime metadata flags - ??? apparently unused. */ 645 646 #define OBJC_MODIFIER_STATIC 0x00000001 647 #define OBJC_MODIFIER_FINAL 0x00000002 648 #define OBJC_MODIFIER_PUBLIC 0x00000004 649 #define OBJC_MODIFIER_PRIVATE 0x00000008 650 #define OBJC_MODIFIER_PROTECTED 0x00000010 651 #define OBJC_MODIFIER_NATIVE 0x00000020 652 #define OBJC_MODIFIER_SYNCHRONIZED 0x00000040 653 #define OBJC_MODIFIER_ABSTRACT 0x00000080 654 #define OBJC_MODIFIER_VOLATILE 0x00000100 655 #define OBJC_MODIFIER_TRANSIENT 0x00000200 656 #define OBJC_MODIFIER_NONE_SPECIFIED 0x80000000 657 658 /* Exception handling constructs. We begin by having the parser do most 659 of the work and passing us blocks. 660 This allows us to handle different exceptions implementations. */ 661 662 /* Stack of open try blocks. */ 663 664 struct objc_try_context 665 { 666 struct objc_try_context *outer; 667 668 /* Statements (or statement lists) as processed by the parser. */ 669 tree try_body; 670 tree finally_body; 671 672 /* Some file position locations. */ 673 location_t try_locus; 674 location_t end_try_locus; 675 location_t end_catch_locus; 676 location_t finally_locus; 677 location_t end_finally_locus; 678 679 /* A STATEMENT_LIST of CATCH_EXPRs, appropriate for sticking into op1 680 of a TRY_CATCH_EXPR. Even when doing Darwin setjmp. */ 681 tree catch_list; 682 683 /* The CATCH_EXPR of an open @catch clause. */ 684 tree current_catch; 685 686 /* The VAR_DECL holding __builtin_eh_pointer (or equivalent). */ 687 tree caught_decl; 688 tree stack_decl; 689 tree rethrow_decl; 690 }; 691 692 /* A small number of routines used by the FE parser and the runtime code 693 generators. Put here as inlines for efficiency in non-lto builds rather 694 than making them externs. */ 695 696 extern tree objc_create_temporary_var (tree, const char *); 697 698 #define objc_is_object_id(TYPE) (OBJC_TYPE_NAME (TYPE) == objc_object_id) 699 #define objc_is_class_id(TYPE) (OBJC_TYPE_NAME (TYPE) == objc_class_id) 700 701 /* Retrieve category interface CAT_NAME (if any) associated with CLASS. */ 702 static inline tree 703 lookup_category (tree klass, tree cat_name) 704 { 705 tree category = CLASS_CATEGORY_LIST (klass); 706 707 while (category && CLASS_SUPER_NAME (category) != cat_name) 708 category = CLASS_CATEGORY_LIST (category); 709 return category; 710 } 711 712 /* Count only the fields occurring in T. */ 713 static inline int 714 ivar_list_length (tree t) 715 { 716 int count = 0; 717 718 for (; t; t = DECL_CHAIN (t)) 719 if (TREE_CODE (t) == FIELD_DECL) 720 ++count; 721 722 return count; 723 } 724 725 static inline tree 726 is_ivar (tree decl_chain, tree ident) 727 { 728 for ( ; decl_chain; decl_chain = DECL_CHAIN (decl_chain)) 729 if (DECL_NAME (decl_chain) == ident) 730 return decl_chain; 731 return NULL_TREE; 732 } 733 734 #endif /* GCC_OBJC_ACT_H */ 735