1 /* Language parser definitions for the GNU compiler for the Java(TM) language. 2 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. 3 Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com) 4 5 This file is part of GNU CC. 6 7 GNU CC 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 2, or (at your option) 10 any later version. 11 12 GNU CC 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 GNU CC; see the file COPYING. If not, write to 19 the Free Software Foundation, 59 Temple Place - Suite 330, 20 Boston, MA 02111-1307, USA. 21 22 Java and all Java-based marks are trademarks or registered trademarks 23 of Sun Microsystems, Inc. in the United States and other countries. 24 The Free Software Foundation is independent of Sun Microsystems, Inc. */ 25 26 #ifndef GCC_JAVA_PARSE_H 27 #define GCC_JAVA_PARSE_H 28 29 #include "lex.h" 30 31 /* Extern global variable declarations */ 32 extern int java_error_count; 33 extern struct obstack temporary_obstack; 34 extern int quiet_flag; 35 36 #ifndef JC1_LITE 37 /* Function extern to java/ */ 38 extern int int_fits_type_p PARAMS ((tree, tree)); 39 extern tree stabilize_reference PARAMS ((tree)); 40 #endif 41 42 /* Macros for verbose debug info */ 43 #ifdef VERBOSE_SKELETON 44 #define RULE( rule ) printf ( "jv_yacc:%d: rule %s\n", lineno, rule ) 45 #else 46 #define RULE( rule ) 47 #endif 48 49 #ifdef VERBOSE_SKELETON 50 #undef SOURCE_FRONTEND_DEBUG 51 #define SOURCE_FRONTEND_DEBUG(X) \ 52 {if (!quiet_flag) {printf ("* "); printf X; putchar ('\n');} } 53 #else 54 #define SOURCE_FRONTEND_DEBUG(X) 55 #endif 56 57 /* Macro for error recovering */ 58 #ifdef YYDEBUG 59 #define RECOVERED \ 60 { if (!quiet_flag) {printf ("** Recovered\n");} } 61 #define DRECOVERED(s) \ 62 { if (!quiet_flag) {printf ("** Recovered (%s)\n", #s);}} 63 #else 64 #define RECOVERED 65 #define DRECOVERED(s) 66 #endif 67 68 #define DRECOVER(s) {yyerrok; DRECOVERED(s);} 69 #define RECOVER {yyerrok; RECOVERED;} 70 71 #define YYERROR_NOW ctxp->java_error_flag = 1 72 #define YYNOT_TWICE if (ctxp->prevent_ese != lineno) 73 74 /* Accepted modifiers */ 75 #define CLASS_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT|ACC_FINAL|ACC_STRICT 76 #define FIELD_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_FINAL| \ 77 ACC_STATIC|ACC_TRANSIENT|ACC_VOLATILE 78 #define METHOD_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_ABSTRACT| \ 79 ACC_STATIC|ACC_FINAL|ACC_SYNCHRONIZED|ACC_NATIVE| \ 80 ACC_STRICT 81 #define INTERFACE_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT|ACC_STRICT 82 #define INTERFACE_INNER_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_ABSTRACT| \ 83 ACC_STATIC|ACC_PRIVATE 84 #define INTERFACE_METHOD_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT 85 #define INTERFACE_FIELD_MODIFIERS ACC_PUBLIC|ACC_STATIC|ACC_FINAL 86 87 /* Getting a modifier WFL */ 88 #define MODIFIER_WFL(M) (ctxp->modifier_ctx [(M) - PUBLIC_TK]) 89 90 /* Check on modifiers */ 91 #define THIS_MODIFIER_ONLY(f, m, v, count, l) \ 92 if ((f) & (m)) \ 93 { \ 94 tree node = MODIFIER_WFL (v); \ 95 if ((l) \ 96 && ((EXPR_WFL_COLNO (node) > EXPR_WFL_COLNO (l)) \ 97 || (EXPR_WFL_LINENO (node) > EXPR_WFL_LINENO (l)))) \ 98 l = node; \ 99 else if (!(l)) \ 100 l = node; \ 101 count++; \ 102 } 103 104 #define ABSTRACT_CHECK(FLAG, V, CL, S) \ 105 if ((FLAG) & (V)) \ 106 parse_error_context ((CL), "%s method can't be abstract", (S)); 107 108 #define JCONSTRUCTOR_CHECK(FLAG, V, CL, S) \ 109 if ((FLAG) & (V)) \ 110 parse_error_context ((CL), "Constructor can't be %s", (S)); \ 111 112 /* Misc. */ 113 #define exit_java_complete_class() \ 114 { \ 115 return; \ 116 } 117 118 #define CLASS_OR_INTERFACE(decl, s1, s2) \ 119 (decl ? \ 120 ((get_access_flags_from_decl (TYPE_NAME (TREE_TYPE (decl))) \ 121 & ACC_INTERFACE) ? \ 122 s2 : s1) : ((s1 [0]=='S'|| s1 [0]=='s') ? \ 123 (s1 [0]=='S' ? "Supertype" : "supertype") : \ 124 (s1 [0] > 'A' ? "Type" : "type"))) 125 126 #define GET_REAL_TYPE(TYPE) \ 127 (TREE_CODE (TYPE) == TREE_LIST ? TREE_PURPOSE (TYPE) : TYPE) 128 129 /* Get TYPE name string, regardless whether TYPE is a class or an 130 array. */ 131 #define GET_TYPE_NAME(TYPE) \ 132 (TREE_CODE (TYPE_NAME (TYPE)) == IDENTIFIER_NODE ? \ 133 IDENTIFIER_POINTER (TYPE_NAME (TYPE)) : \ 134 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (TYPE)))) 135 136 /* Pedantic warning on obsolete modifiers. Note: when cl is NULL, 137 flags was set artificially, such as for a interface method */ 138 #define OBSOLETE_MODIFIER_WARNING(cl, flags, __modifier, arg) \ 139 { \ 140 if (flag_redundant && (cl) && ((flags) & (__modifier))) \ 141 parse_warning_context (cl, \ 142 "Discouraged redundant use of `%s' modifier in declaration of %s", \ 143 java_accstring_lookup (__modifier), arg); \ 144 } 145 #define OBSOLETE_MODIFIER_WARNING2(cl, flags, __modifier, arg1, arg2) \ 146 { \ 147 if (flag_redundant && (cl) && ((flags) & (__modifier))) \ 148 parse_warning_context (cl, \ 149 "Discouraged redundant use of `%s' modifier in declaration of %s `%s'", \ 150 java_accstring_lookup (__modifier), arg1, arg2);\ 151 } 152 153 /* Quickly build a temporary pointer on hypothetical type NAME. */ 154 #define BUILD_PTR_FROM_NAME(ptr, name) \ 155 do { \ 156 ptr = build (POINTER_TYPE, NULL_TREE); \ 157 TYPE_NAME (ptr) = name; \ 158 } while (0) 159 160 #define INCOMPLETE_TYPE_P(NODE) \ 161 ((TREE_CODE (NODE) == POINTER_TYPE) \ 162 && !TREE_TYPE (NODE) \ 163 && TREE_CODE (TYPE_NAME (NODE)) == IDENTIFIER_NODE) 164 165 /* Set the EMIT_LINE_NOTE flag of a EXPR_WLF to 1 if debug information 166 are requested. Works in the context of a parser rule. */ 167 #define JAVA_MAYBE_GENERATE_DEBUG_INFO(node) \ 168 (debug_info_level != DINFO_LEVEL_NONE ? \ 169 EXPR_WFL_EMIT_LINE_NOTE (node) = 1, node : node) 170 171 /* Types classification, according to the JLS, section 4.2 */ 172 #define JFLOAT_TYPE_P(TYPE) (TYPE && TREE_CODE ((TYPE)) == REAL_TYPE) 173 #define JINTEGRAL_TYPE_P(TYPE) ((TYPE) \ 174 && (TREE_CODE ((TYPE)) == INTEGER_TYPE \ 175 || TREE_CODE ((TYPE)) == CHAR_TYPE)) 176 #define JNUMERIC_TYPE_P(TYPE) ((TYPE) \ 177 && (JFLOAT_TYPE_P ((TYPE)) \ 178 || JINTEGRAL_TYPE_P ((TYPE)))) 179 #define JPRIMITIVE_TYPE_P(TYPE) ((TYPE) \ 180 && (JNUMERIC_TYPE_P ((TYPE)) \ 181 || TREE_CODE ((TYPE)) == BOOLEAN_TYPE)) 182 183 #define JBSC_TYPE_P(TYPE) ((TYPE) && (((TYPE) == byte_type_node) \ 184 || ((TYPE) == short_type_node) \ 185 || ((TYPE) == char_type_node))) 186 187 /* Not defined in the LRM */ 188 #define JSTRING_TYPE_P(TYPE) ((TYPE) \ 189 && ((TYPE) == string_type_node || \ 190 (TREE_CODE (TYPE) == POINTER_TYPE && \ 191 TREE_TYPE (TYPE) == string_type_node))) 192 #define JSTRING_P(NODE) ((NODE) \ 193 && (TREE_CODE (NODE) == STRING_CST \ 194 || IS_CRAFTED_STRING_BUFFER_P (NODE) \ 195 || JSTRING_TYPE_P (TREE_TYPE (NODE)))) 196 197 #define JREFERENCE_TYPE_P(TYPE) ((TYPE) \ 198 && (TREE_CODE (TYPE) == RECORD_TYPE \ 199 || (TREE_CODE (TYPE) == POINTER_TYPE \ 200 && TREE_CODE (TREE_TYPE (TYPE)) == \ 201 RECORD_TYPE))) 202 #define JNULLP_TYPE_P(TYPE) ((TYPE) && (TREE_CODE (TYPE) == POINTER_TYPE) \ 203 && (TYPE) == TREE_TYPE (null_pointer_node)) 204 205 /* Other predicates */ 206 #define JDECL_P(NODE) (NODE && (TREE_CODE (NODE) == PARM_DECL \ 207 || TREE_CODE (NODE) == VAR_DECL \ 208 || TREE_CODE (NODE) == FIELD_DECL)) 209 210 #define TYPE_INTERFACE_P(TYPE) \ 211 (CLASS_P (TYPE) && CLASS_INTERFACE (TYPE_NAME (TYPE))) 212 213 #define TYPE_CLASS_P(TYPE) (CLASS_P (TYPE) \ 214 && !CLASS_INTERFACE (TYPE_NAME (TYPE))) 215 216 /* Identifier business related to 1.1 language extensions. */ 217 218 #define IDENTIFIER_INNER_CLASS_OUTER_FIELD_ACCESS(NODE) \ 219 (TREE_CODE (NODE) == IDENTIFIER_NODE && \ 220 IDENTIFIER_LENGTH (NODE) >= 8 && \ 221 IDENTIFIER_POINTER (NODE)[7] != '0') 222 223 /* Build the string val$<O> and store it into N. The is used to 224 construct the name of inner class hidden fields used to alias outer 225 scope local variables. */ 226 #define MANGLE_OUTER_LOCAL_VARIABLE_NAME(N, O) \ 227 { \ 228 char *mangled_name; \ 229 obstack_grow (&temporary_obstack, "val$", 4); \ 230 obstack_grow (&temporary_obstack, \ 231 IDENTIFIER_POINTER ((O)), IDENTIFIER_LENGTH ((O))); \ 232 obstack_1grow (&temporary_obstack, '\0'); \ 233 mangled_name = obstack_finish (&temporary_obstack); \ 234 (N) = get_identifier (mangled_name); \ 235 obstack_free (&temporary_obstack, mangled_name); \ 236 } 237 238 /* Build the string parm$<O> and store in into the identifier N. This 239 is used to construct the name of hidden parameters used to 240 initialize outer scope aliases. */ 241 #define MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_ID(N, O) \ 242 { \ 243 char *mangled_name; \ 244 obstack_grow (&temporary_obstack, "parm$", 5); \ 245 obstack_grow (&temporary_obstack, \ 246 IDENTIFIER_POINTER ((O)), IDENTIFIER_LENGTH ((O))); \ 247 obstack_1grow (&temporary_obstack, '\0'); \ 248 mangled_name = obstack_finish (&temporary_obstack); \ 249 (N) = get_identifier (mangled_name); \ 250 obstack_free (&temporary_obstack, mangled_name); \ 251 } 252 253 #define MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR(N, S) \ 254 { \ 255 char *mangled_name; \ 256 obstack_grow (&temporary_obstack, "parm$", 5); \ 257 obstack_grow (&temporary_obstack, (S), strlen ((S))); \ 258 obstack_1grow (&temporary_obstack, '\0'); \ 259 mangled_name = obstack_finish (&temporary_obstack); \ 260 (N) = get_identifier (mangled_name); \ 261 obstack_free (&temporary_obstack, mangled_name); \ 262 } 263 264 /* Skip THIS and artificial parameters found in function decl M and 265 assign the result to C. We don't do that for $finit$, since it's 266 knowingly called with artificial parms. */ 267 #define SKIP_THIS_AND_ARTIFICIAL_PARMS(C,M) \ 268 { \ 269 int i; \ 270 (C) = TYPE_ARG_TYPES (TREE_TYPE ((M))); \ 271 if (!METHOD_STATIC ((M))) \ 272 (C) = TREE_CHAIN (C); \ 273 if (DECL_CONSTRUCTOR_P ((M)) \ 274 && PURE_INNER_CLASS_TYPE_P (DECL_CONTEXT ((M)))) \ 275 (C) = TREE_CHAIN (C); \ 276 if (!DECL_FINIT_P ((M))) \ 277 for (i = DECL_FUNCTION_NAP ((M)); i; i--) \ 278 (C) = TREE_CHAIN (C); \ 279 } 280 281 /* Mark final parameters in method M, by comparison of the argument 282 list L. This macro is used to set the flag once the method has been 283 build. */ 284 #define MARK_FINAL_PARMS(M, L) \ 285 { \ 286 tree current = TYPE_ARG_TYPES (TREE_TYPE ((M))); \ 287 tree list = (L); \ 288 if (!METHOD_STATIC ((M))) \ 289 current = TREE_CHAIN (current); \ 290 for (; current != end_params_node; \ 291 current = TREE_CHAIN (current), list = TREE_CHAIN (list)) \ 292 ARG_FINAL_P (current) = ARG_FINAL_P (list); \ 293 if (current != list) \ 294 abort (); \ 295 } 296 297 /* Reset the ARG_FINAL_P that might have been set in method M args. */ 298 #define UNMARK_FINAL_PARMS(M) \ 299 { \ 300 tree current; \ 301 for (current = TYPE_ARG_TYPES (TREE_TYPE ((M))); \ 302 current != end_params_node; current = TREE_CHAIN (current)) \ 303 ARG_FINAL_P (current) = 0; \ 304 } 305 306 /* Reverse a crafted parameter list as required. */ 307 #define CRAFTED_PARAM_LIST_FIXUP(P) \ 308 { \ 309 if ((P)) \ 310 { \ 311 tree last = (P); \ 312 (P) = nreverse (P); \ 313 TREE_CHAIN (last) = end_params_node; \ 314 } \ 315 else \ 316 (P) = end_params_node; \ 317 } 318 319 /* Modes governing the creation of a alias initializer parameter 320 lists. AIPL stands for Alias Initializer Parameter List. */ 321 enum { 322 AIPL_FUNCTION_CREATION, /* Suitable for artificial method creation */ 323 AIPL_FUNCTION_DECLARATION, /* Suitable for declared methods */ 324 AIPL_FUNCTION_CTOR_INVOCATION, /* Invocation of constructors */ 325 AIPL_FUNCTION_FINIT_INVOCATION /* Invocation of $finit$ */ 326 }; 327 328 /* Standard error messages */ 329 #define ERROR_CANT_CONVERT_TO_BOOLEAN(OPERATOR, NODE, TYPE) \ 330 parse_error_context ((OPERATOR), \ 331 "Incompatible type for `%s'. Can't convert `%s' to boolean", \ 332 operator_string ((NODE)), lang_printable_name ((TYPE),0)) 333 334 #define ERROR_CANT_CONVERT_TO_NUMERIC(OPERATOR, NODE, TYPE) \ 335 parse_error_context ((OPERATOR), \ 336 "Incompatible type for `%s'. Can't convert `%s' to numeric type", \ 337 operator_string ((NODE)), lang_printable_name ((TYPE), 0)) 338 339 #define ERROR_CAST_NEEDED_TO_INTEGRAL(OPERATOR, NODE, TYPE) \ 340 do { \ 341 tree _operator = (OPERATOR), _node = (NODE), _type = (TYPE); \ 342 if (JPRIMITIVE_TYPE_P (_type)) \ 343 parse_error_context (_operator, \ 344 "Incompatible type for `%s'. Explicit cast needed to convert `%s' to integral",\ 345 operator_string(_node), \ 346 lang_printable_name (_type, 0)); \ 347 else \ 348 parse_error_context (_operator, \ 349 "Incompatible type for `%s'. Can't convert `%s' to integral", \ 350 operator_string(_node), \ 351 lang_printable_name (_type, 0)); \ 352 } while (0) 353 354 #define ERROR_VARIABLE_NOT_INITIALIZED(WFL, V) \ 355 parse_error_context \ 356 ((WFL), "Variable `%s' may not have been initialized", \ 357 IDENTIFIER_POINTER (V)) 358 359 /* Definition for loop handling. This is Java's own definition of a 360 loop body. See parse.y for documentation. It's valid once you hold 361 a loop's body (LOOP_EXPR_BODY) */ 362 363 /* The loop main block is the one hold the condition and the loop body */ 364 #define LOOP_EXPR_BODY_MAIN_BLOCK(NODE) TREE_OPERAND (NODE, 0) 365 /* And then there is the loop update block */ 366 #define LOOP_EXPR_BODY_UPDATE_BLOCK(NODE) TREE_OPERAND (NODE, 1) 367 368 /* Inside the loop main block, there is the loop condition and the 369 loop body. They may be reversed if the loop being described is a 370 do-while loop. NOTE: if you use a WFL around the EXIT_EXPR so you 371 can issue debug info for it, the EXIT_EXPR will be one operand 372 further. */ 373 #define LOOP_EXPR_BODY_CONDITION_EXPR(NODE, R) \ 374 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 1 : 0)) 375 376 /* Here is the labeled block the loop real body is encapsulated in */ 377 #define LOOP_EXPR_BODY_LABELED_BODY(NODE, R) \ 378 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 0 : 1)) 379 /* And here is the loop's real body */ 380 #define LOOP_EXPR_BODY_BODY_EXPR(NODE, R) \ 381 LABELED_BLOCK_BODY (LOOP_EXPR_BODY_LABELED_BODY(NODE, R)) 382 383 #define PUSH_LABELED_BLOCK(B) \ 384 { \ 385 TREE_CHAIN (B) = ctxp->current_labeled_block; \ 386 ctxp->current_labeled_block = (B); \ 387 } 388 #define POP_LABELED_BLOCK() \ 389 ctxp->current_labeled_block = TREE_CHAIN (ctxp->current_labeled_block) 390 391 #define PUSH_LOOP(L) \ 392 { \ 393 TREE_CHAIN (L) = ctxp->current_loop; \ 394 ctxp->current_loop = (L); \ 395 } 396 #define POP_LOOP() ctxp->current_loop = TREE_CHAIN (ctxp->current_loop) 397 398 #define PUSH_EXCEPTIONS(E) \ 399 currently_caught_type_list = \ 400 tree_cons (NULL_TREE, (E), currently_caught_type_list); 401 402 #define POP_EXCEPTIONS() \ 403 currently_caught_type_list = TREE_CHAIN (currently_caught_type_list) 404 405 /* Check that we're inside a try block. */ 406 #define IN_TRY_BLOCK_P() \ 407 (currently_caught_type_list \ 408 && ((TREE_VALUE (currently_caught_type_list) != \ 409 DECL_FUNCTION_THROWS (current_function_decl)) \ 410 || TREE_CHAIN (currently_caught_type_list))) 411 412 /* Check that we have exceptions in E. */ 413 #define EXCEPTIONS_P(E) ((E) ? TREE_VALUE (E) : NULL_TREE) 414 415 /* Anonymous array access */ 416 #define ANONYMOUS_ARRAY_BASE_TYPE(N) TREE_OPERAND ((N), 0) 417 #define ANONYMOUS_ARRAY_DIMS_SIG(N) TREE_OPERAND ((N), 1) 418 #define ANONYMOUS_ARRAY_INITIALIZER(N) TREE_OPERAND ((N), 2) 419 420 /* Invocation modes, as returned by invocation_mode (). */ 421 enum { 422 INVOKE_STATIC, 423 INVOKE_NONVIRTUAL, 424 INVOKE_SUPER, 425 INVOKE_INTERFACE, 426 INVOKE_VIRTUAL 427 }; 428 429 /* We need the resolution stuff only if we compile jc1 */ 430 #ifndef JC1_LITE 431 432 /* Unresolved type identifiers handling. When we process the source 433 code, we blindly accept an unknown type identifier and try to 434 resolve it later. When an unknown type identifier is encountered 435 and used, we record in a struct jdep element what the incomplete 436 type is and what it should patch. Later, java_complete_class will 437 process all classes known to have unresolved type 438 dependencies. Within each of these classes, this routine will 439 process unresolved type dependencies (JDEP_TO_RESOLVE), patch what 440 needs to be patched in the dependent tree node (JDEP_GET_PATCH, 441 JDEP_APPLY_PATCH) and perform other actions dictated by the context 442 of the patch (JDEP_KIND). The ideas are: we patch only what needs 443 to be patched, and with java_complete_class called at the right 444 time, we will start processing incomplete function bodies tree 445 nodes with everything external to function's bodies already 446 completed, it makes things much simpler. */ 447 448 enum jdep_code { 449 JDEP_NO_PATCH, /* Must be first */ 450 JDEP_SUPER, /* Patch the type of one type 451 supertype. Requires some check 452 before it's done */ 453 JDEP_FIELD, /* Patch the type of a class field */ 454 455 /* JDEP_{METHOD,METHOD_RETURN,METHOD_END} to be kept in order */ 456 JDEP_METHOD, /* Mark the beginning of the patching 457 of a method declaration, including 458 it's arguments */ 459 JDEP_METHOD_RETURN, /* Mark the beginning of the patching 460 of a method declaration. Arguments 461 aren't patched, only the returned 462 type is */ 463 JDEP_METHOD_END, /* Mark the end of the patching of a 464 method declaration. It indicates 465 that it's time to compute and 466 install a new signature */ 467 468 JDEP_INTERFACE, /* Patch the type of a Class/interface 469 extension */ 470 JDEP_VARIABLE, /* Patch the type of a variable declaration */ 471 JDEP_PARM, /* Patch the type of a parm declaration */ 472 JDEP_TYPE, /* Patch a random tree node type, 473 without the need for any specific 474 actions */ 475 JDEP_EXCEPTION, /* Patch exceptions specified by `throws' */ 476 JDEP_ANONYMOUS /* Patch anonymous classes 477 (implementation or extension.) */ 478 479 }; 480 481 typedef struct _jdep { 482 ENUM_BITFIELD(jdep_code) kind : 8; /* Type of patch */ 483 484 int flag0 : 1; /* Some flags */ 485 tree decl; /* Tied decl/or WFL */ 486 tree solv; /* What to solve */ 487 tree wfl; /* Where thing to resolve where found */ 488 tree misc; /* Miscellaneous info (optional). */ 489 tree enclosing; /* The enclosing (current) class */ 490 tree *patch; /* Address of a location to patch */ 491 struct _jdep *next; /* Linked list */ 492 } jdep; 493 494 495 #define JDEP_DECL(J) ((J)->decl) 496 #define JDEP_DECL_WFL(J) ((J)->decl) 497 #define JDEP_KIND(J) ((J)->kind) 498 #define JDEP_WFL(J) ((J)->wfl) 499 #define JDEP_MISC(J) ((J)->misc) 500 #define JDEP_ENCLOSING(J) ((J)->enclosing) 501 #define JDEP_CLASS(J) ((J)->class) 502 #define JDEP_APPLY_PATCH(J,P) (*(J)->patch = (P)) 503 #define JDEP_GET_PATCH(J) ((J)->patch) 504 #define JDEP_CHAIN(J) ((J)->next) 505 #define JDEP_TO_RESOLVE(J) ((J)->solv) 506 #define JDEP_RESOLVED_DECL(J) ((J)->solv) 507 #define JDEP_RESOLVED(J, D) ((J)->solv = D) 508 #define JDEP_RESOLVED_P(J) \ 509 (!(J)->solv || TREE_CODE ((J)->solv) != POINTER_TYPE) 510 511 typedef struct _jdeplist { 512 jdep *first; 513 jdep *last; 514 struct _jdeplist *next; 515 } jdeplist; 516 517 #endif /* JC1_LITE */ 518 519 #define CLASSD_FIRST(CD) ((CD)->first) 520 #define CLASSD_LAST(CD) ((CD)->last) 521 #define CLASSD_CHAIN(CD) ((CD)->next) 522 523 #define JDEP_INSERT(L,J) \ 524 { \ 525 if (!(L)->first) \ 526 (L)->last = (L)->first = (J); \ 527 else \ 528 { \ 529 JDEP_CHAIN ((L)->last) = (J); \ 530 (L)->last = (J); \ 531 } \ 532 } 533 534 /* if TYPE can't be resolved, obtain something suitable for its 535 resolution (TYPE is saved in SAVE before being changed). and set 536 CHAIN to 1. Otherwise, type is set to something usable. CHAIN is 537 usually used to determine that a new DEP must be installed on TYPE. 538 Note that when compiling java.lang.Object, references to Object are 539 java.lang.Object. */ 540 #define SET_TYPE_FOR_RESOLUTION(TYPE, SAVE, CHAIN) \ 541 { \ 542 tree _returned_type; \ 543 (CHAIN) = 0; \ 544 if (TREE_TYPE (GET_CPC ()) == object_type_node \ 545 && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION \ 546 && EXPR_WFL_NODE (TYPE) == unqualified_object_id_node) \ 547 (TYPE) = object_type_node; \ 548 else \ 549 { \ 550 if (unresolved_type_p (type, &_returned_type)) \ 551 { \ 552 if (_returned_type) \ 553 (TYPE) = _returned_type; \ 554 else \ 555 { \ 556 tree _type; \ 557 WFL_STRIP_BRACKET (_type, TYPE); \ 558 (SAVE) = (_type); \ 559 (TYPE) = obtain_incomplete_type (TYPE); \ 560 CHAIN = 1; \ 561 } \ 562 } \ 563 } \ 564 } 565 566 #define WFL_STRIP_BRACKET(TARGET, TYPE) \ 567 { \ 568 tree __type = (TYPE); \ 569 if (TYPE && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION) \ 570 { \ 571 tree _node; \ 572 if (build_type_name_from_array_name (EXPR_WFL_NODE (TYPE), &_node)) \ 573 { \ 574 tree _new = copy_node (TYPE); \ 575 EXPR_WFL_NODE (_new) = _node; \ 576 __type = _new; \ 577 } \ 578 } \ 579 (TARGET) = __type; \ 580 } 581 582 /* If NAME contains one or more trailing []s, NAMELEN will be the 583 adjusted to be the index of the last non bracket character in 584 NAME. ARRAY_DIMS will contain the number of []s found. */ 585 586 #define STRING_STRIP_BRACKETS(NAME, NAMELEN, ARRAY_DIMS) \ 587 { \ 588 ARRAY_DIMS = 0; \ 589 while (NAMELEN >= 2 && (NAME)[NAMELEN - 1] == ']') \ 590 { \ 591 NAMELEN -= 2; \ 592 (ARRAY_DIMS)++; \ 593 } \ 594 } 595 596 /* Promote a type if it won't be registered as a patch */ 597 #define PROMOTE_RECORD_IF_COMPLETE(TYPE, IS_INCOMPLETE) \ 598 { \ 599 if (!(IS_INCOMPLETE) && TREE_CODE (TYPE) == RECORD_TYPE) \ 600 (TYPE) = promote_type (TYPE); \ 601 } 602 603 /* Insert a DECL in the current block */ 604 #define BLOCK_CHAIN_DECL(NODE) \ 605 { \ 606 TREE_CHAIN ((NODE)) = \ 607 BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)); \ 608 BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)) = (NODE); \ 609 } 610 611 /* Return the current block, either found in the body of the currently 612 declared function or in the current static block being defined. */ 613 #define GET_CURRENT_BLOCK(F) ((F) ? DECL_FUNCTION_BODY ((F)) : \ 614 current_static_block) 615 616 /* Merge an other line to the source line number of a decl. Used to 617 remember function's end. */ 618 #define DECL_SOURCE_LINE_MERGE(DECL,NO) DECL_SOURCE_LINE(DECL) |= (NO << 16) 619 620 /* Retrieve those two info separately. */ 621 #define DECL_SOURCE_LINE_FIRST(DECL) (DECL_SOURCE_LINE(DECL) & 0x0000ffff) 622 #define DECL_SOURCE_LINE_LAST(DECL) (DECL_SOURCE_LINE(DECL) >> 16) 623 624 /* Retrieve line/column from a WFL. */ 625 #define EXPR_WFL_GET_LINECOL(V,LINE,COL) \ 626 { \ 627 (LINE) = (V) >> 12; \ 628 (COL) = (V) & 0xfff; \ 629 } 630 /* Add X to the column number information */ 631 #define EXPR_WFL_ADD_COL(V, X) \ 632 (V) = (((V) & 0xfffff000) | ((((V) & 0xfff) + (X)) & 0xfff)) 633 634 /* Build a WFL for expression nodes */ 635 #define BUILD_EXPR_WFL(NODE, WFL) \ 636 build_expr_wfl ((NODE), input_filename, EXPR_WFL_LINENO ((WFL)), \ 637 EXPR_WFL_COLNO ((WFL))) 638 639 #define EXPR_WFL_QUALIFICATION(WFL) TREE_OPERAND ((WFL), 2) 640 #define QUAL_WFL(NODE) TREE_PURPOSE (NODE) 641 #define QUAL_RESOLUTION(NODE) TREE_VALUE (NODE) 642 #define QUAL_DECL_TYPE(NODE) GET_SKIP_TYPE (NODE) 643 644 #define GET_SKIP_TYPE(NODE) \ 645 (TREE_CODE (TREE_TYPE (NODE)) == POINTER_TYPE ? \ 646 TREE_TYPE (TREE_TYPE (NODE)): TREE_TYPE (NODE)) 647 648 /* Handy macros for the walk operation */ 649 #define COMPLETE_CHECK_OP(NODE, N) \ 650 { \ 651 TREE_OPERAND ((NODE), (N)) = \ 652 java_complete_tree (TREE_OPERAND ((NODE), (N))); \ 653 if (TREE_OPERAND ((NODE), (N)) == error_mark_node) \ 654 return error_mark_node; \ 655 } 656 #define COMPLETE_CHECK_OP_0(NODE) COMPLETE_CHECK_OP(NODE, 0) 657 #define COMPLETE_CHECK_OP_1(NODE) COMPLETE_CHECK_OP(NODE, 1) 658 #define COMPLETE_CHECK_OP_2(NODE) COMPLETE_CHECK_OP(NODE, 2) 659 660 /* Building invocations: append(ARG) and StringBuffer(ARG) */ 661 #define BUILD_APPEND(ARG) \ 662 ((JSTRING_TYPE_P (TREE_TYPE (ARG)) || JPRIMITIVE_TYPE_P (TREE_TYPE (ARG))) \ 663 ? build_method_invocation (wfl_append, \ 664 ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE)\ 665 : build_method_invocation (wfl_append, \ 666 ARG ? build_tree_list (NULL, \ 667 build1 (CONVERT_EXPR, \ 668 object_type_node,\ 669 (ARG))) \ 670 : NULL_TREE)) 671 #define BUILD_STRING_BUFFER(ARG) \ 672 build_new_invocation (wfl_string_buffer, \ 673 (ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE)) 674 675 #define BUILD_THROW(WHERE, WHAT) \ 676 { \ 677 (WHERE) = \ 678 build (CALL_EXPR, void_type_node, \ 679 build_address_of (throw_node), \ 680 build_tree_list (NULL_TREE, (WHAT)), NULL_TREE); \ 681 TREE_SIDE_EFFECTS ((WHERE)) = 1; \ 682 } 683 684 /* Set wfl_operator for the most accurate error location */ 685 #define SET_WFL_OPERATOR(WHICH, NODE, WFL) \ 686 EXPR_WFL_LINECOL (WHICH) = \ 687 (TREE_CODE (WFL) == EXPR_WITH_FILE_LOCATION ? \ 688 EXPR_WFL_LINECOL (WFL) : EXPR_WFL_LINECOL (NODE)) 689 690 #define PATCH_METHOD_RETURN_ERROR() \ 691 { \ 692 if (ret_decl) \ 693 *ret_decl = NULL_TREE; \ 694 return error_mark_node; \ 695 } 696 697 /* Convenient macro to check. Assumes that CLASS is a CLASS_DECL. */ 698 #define CHECK_METHODS(CLASS) \ 699 { \ 700 if (CLASS_INTERFACE ((CLASS))) \ 701 java_check_abstract_methods ((CLASS)); \ 702 else \ 703 java_check_regular_methods ((CLASS)); \ 704 } 705 706 /* Using and reseting the @deprecated tag flag */ 707 #define CHECK_DEPRECATED(DECL) \ 708 { \ 709 if (ctxp->deprecated) \ 710 DECL_DEPRECATED (DECL) = 1; \ 711 ctxp->deprecated = 0; \ 712 } 713 714 /* Register an import */ 715 #define REGISTER_IMPORT(WHOLE, NAME) \ 716 { \ 717 IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P ((NAME)) = 1; \ 718 ctxp->import_list = tree_cons ((WHOLE), (NAME), ctxp->import_list); \ 719 } 720 721 /* Macro to access the osb (opening square bracket) count */ 722 #define CURRENT_OSB(C) (C)->osb_number [(C)->osb_depth] 723 724 /* Macro for the xreferencer */ 725 #define DECL_END_SOURCE_LINE(DECL) (DECL_CHECK (DECL)->decl.u1.i) 726 #define DECL_INHERITED_SOURCE_LINE(DECL) (DECL_CHECK (DECL)->decl.u2.i) 727 728 /* Parser context data structure. */ 729 struct parser_ctxt { 730 731 const char *filename; /* Current filename */ 732 struct parser_ctxt *next; 733 734 java_lexer *lexer; /* Current lexer state */ 735 char marker_begining; /* Marker. Should be a sub-struct */ 736 struct java_line *p_line, *c_line; /* Previous and current line */ 737 java_lc elc; /* Error's line column info */ 738 int ccb_indent; /* Keep track of {} indent, lexer */ 739 int first_ccb_indent1; /* First { at ident level 1 */ 740 int last_ccb_indent1; /* Last } at ident level 1 */ 741 int parser_ccb_indent; /* Keep track of {} indent, parser */ 742 int osb_depth; /* Current depth of [ in an expression */ 743 int osb_limit; /* Limit of this depth */ 744 int *osb_number; /* Keep track of ['s */ 745 int lineno; /* Current lineno */ 746 char marker_end; /* End marker. Should be a sub-struct */ 747 748 /* The flags section */ 749 750 /* Indicates a context used for saving the parser status. The 751 context must be popped when the status is restored. */ 752 unsigned saved_data_ctx:1; 753 /* Indicates that a context already contains saved data and that the 754 next save operation will require a new context to be created. */ 755 unsigned saved_data:1; 756 /* Report error when true */ 757 unsigned java_error_flag:1; 758 /* @deprecated tag seen */ 759 unsigned deprecated:1; 760 /* Flag to report certain errors (fix this documentation. FIXME) */ 761 unsigned class_err:1; 762 763 /* This section is defined only if we compile jc1 */ 764 #ifndef JC1_LITE 765 tree modifier_ctx [12]; /* WFL of modifiers */ 766 tree class_type; /* Current class */ 767 tree function_decl; /* Current function decl, save/restore */ 768 769 struct JCF *current_jcf; /* CU jcf */ 770 771 int prevent_ese; /* Prevent expression statement error */ 772 773 int formal_parameter_number; /* Number of parameters found */ 774 int interface_number; /* # itfs declared to extend an itf def */ 775 776 tree package; /* Defined package ID */ 777 778 /* These two lists won't survive file traversal */ 779 tree class_list; /* List of classes in a CU */ 780 jdeplist *classd_list; /* Classe dependencies in a CU */ 781 782 tree current_parsed_class; /* Class currently parsed */ 783 tree current_parsed_class_un; /* Curr. parsed class unqualified name */ 784 785 tree non_static_initialized; /* List of non static initialized fields */ 786 tree static_initialized; /* List of static non final initialized */ 787 tree instance_initializers; /* List of instance initializers stmts */ 788 789 tree import_list; /* List of import */ 790 tree import_demand_list; /* List of import on demand */ 791 792 tree current_loop; /* List of the currently nested 793 loops/switches */ 794 tree current_labeled_block; /* List of currently nested 795 labeled blocks. */ 796 797 int pending_block; /* Pending block to close */ 798 799 int explicit_constructor_p; /* >0 when processing an explicit 800 constructor. This flag is used to trap 801 illegal argument usage during an 802 explicit constructor invocation. */ 803 #endif /* JC1_LITE */ 804 }; 805 806 /* A set of macros to push/pop/access the currently parsed class. */ 807 #define GET_CPC_LIST() ctxp->current_parsed_class 808 809 /* Currently class being parsed is an inner class if an enclosing 810 class has been already pushed. This truth value is only valid prior 811 an inner class is pushed. After, use FIXME. */ 812 #define CPC_INNER_P() GET_CPC_LIST () 813 814 /* Get the currently parsed class DECL_TYPE node. */ 815 #define GET_CPC() TREE_VALUE (GET_CPC_LIST ()) 816 817 /* Get the currently parsed class unqualified IDENTIFIER_NODE. */ 818 #define GET_CPC_UN() TREE_PURPOSE (GET_CPC_LIST ()) 819 820 /* Get a parsed class unqualified IDENTIFIER_NODE from its CPC node. */ 821 #define GET_CPC_UN_NODE(N) TREE_PURPOSE (N) 822 823 /* Get the currently parsed class DECL_TYPE from its CPC node. */ 824 #define GET_CPC_DECL_NODE(N) TREE_VALUE (N) 825 826 /* The currently parsed enclosing currently parsed TREE_LIST node. */ 827 #define GET_ENCLOSING_CPC() TREE_CHAIN (GET_CPC_LIST ()) 828 829 /* Get the next enclosing context. */ 830 #define GET_NEXT_ENCLOSING_CPC(C) TREE_CHAIN (C) 831 832 /* The DECL_TYPE node of the enclosing currently parsed 833 class. NULL_TREE if the currently parsed class isn't an inner 834 class. */ 835 #define GET_ENCLOSING_CPC_CONTEXT() (GET_ENCLOSING_CPC () ? \ 836 TREE_VALUE (GET_ENCLOSING_CPC ()) : \ 837 NULL_TREE) 838 839 /* Make sure that innerclass T sits in an appropriate enclosing 840 context. */ 841 #define INNER_ENCLOSING_SCOPE_CHECK(T) \ 842 (INNER_CLASS_TYPE_P ((T)) && !ANONYMOUS_CLASS_P ((T)) \ 843 && ((current_this \ 844 /* We have a this and it's not the right one */ \ 845 && (DECL_CONTEXT (TYPE_NAME ((T))) \ 846 != TYPE_NAME (TREE_TYPE (TREE_TYPE (current_this)))) \ 847 && !inherits_from_p (TREE_TYPE (TREE_TYPE (current_this)), \ 848 TREE_TYPE (DECL_CONTEXT (TYPE_NAME (T)))) \ 849 && !common_enclosing_context_p (TREE_TYPE (TREE_TYPE (current_this)), \ 850 (T)) \ 851 && INNER_CLASS_TYPE_P (TREE_TYPE (TREE_TYPE (current_this))) \ 852 && !inherits_from_p \ 853 (TREE_TYPE (DECL_CONTEXT \ 854 (TYPE_NAME (TREE_TYPE (TREE_TYPE (current_this))))),\ 855 TREE_TYPE (DECL_CONTEXT (TYPE_NAME (T))))) \ 856 /* We don't have a this, which is OK if the current function is \ 857 static. */ \ 858 || (!current_this \ 859 && current_function_decl \ 860 && ! METHOD_STATIC (current_function_decl)))) 861 862 /* Push macro. First argument to PUSH_CPC is a DECL_TYPE, second 863 argument is the unqualified currently parsed class name. */ 864 #define PUSH_CPC(C,R) { \ 865 ctxp->current_parsed_class = \ 866 tree_cons ((R), (C), GET_CPC_LIST ()); \ 867 } 868 869 /* In case of an error, push an error. */ 870 #define PUSH_ERROR() PUSH_CPC (error_mark_node, error_mark_node) 871 872 /* Pop macro. Before we pop, we link the current inner class decl (if any) 873 to its enclosing class. */ 874 #define POP_CPC() { \ 875 link_nested_class_to_enclosing (); \ 876 ctxp->current_parsed_class = \ 877 TREE_CHAIN (GET_CPC_LIST ()); \ 878 } 879 880 #define DEBUG_CPC() \ 881 do \ 882 { \ 883 tree tmp = ctxp->current_parsed_class; \ 884 while (tmp) \ 885 { \ 886 fprintf (stderr, "%s ", \ 887 IDENTIFIER_POINTER (TREE_PURPOSE (tmp))); \ 888 tmp = TREE_CHAIN (tmp); \ 889 } \ 890 } \ 891 while (0); 892 893 /* Access to the various initializer statement lists */ 894 #define CPC_INITIALIZER_LIST(C) ((C)->non_static_initialized) 895 #define CPC_STATIC_INITIALIZER_LIST(C) ((C)->static_initialized) 896 #define CPC_INSTANCE_INITIALIZER_LIST(C) ((C)->instance_initializers) 897 898 /* Access to the various initializer statements */ 899 #define CPC_INITIALIZER_STMT(C) (TREE_PURPOSE (CPC_INITIALIZER_LIST (C))) 900 #define CPC_STATIC_INITIALIZER_STMT(C) \ 901 (TREE_PURPOSE (CPC_STATIC_INITIALIZER_LIST (C))) 902 #define CPC_INSTANCE_INITIALIZER_STMT(C) \ 903 (TREE_PURPOSE (CPC_INSTANCE_INITIALIZER_LIST (C))) 904 905 /* Set various initializer statements */ 906 #define SET_CPC_INITIALIZER_STMT(C,S) \ 907 if (CPC_INITIALIZER_LIST (C)) \ 908 TREE_PURPOSE (CPC_INITIALIZER_LIST (C)) = (S); 909 #define SET_CPC_STATIC_INITIALIZER_STMT(C,S) \ 910 if (CPC_STATIC_INITIALIZER_LIST (C)) \ 911 TREE_PURPOSE (CPC_STATIC_INITIALIZER_LIST (C)) = (S); 912 #define SET_CPC_INSTANCE_INITIALIZER_STMT(C,S) \ 913 if (CPC_INSTANCE_INITIALIZER_LIST(C)) \ 914 TREE_PURPOSE (CPC_INSTANCE_INITIALIZER_LIST (C)) = (S); 915 916 /* This is used by the lexer to communicate with the parser. It is 917 set on an integer constant if the radix is 10, so that the parser 918 can correctly diagnose a numeric overflow. */ 919 #define JAVA_RADIX10_FLAG(NODE) TREE_LANG_FLAG_0(NODE) 920 921 #ifndef JC1_LITE 922 void java_complete_class PARAMS ((void)); 923 void java_check_circular_reference PARAMS ((void)); 924 void java_fix_constructors PARAMS ((void)); 925 void java_layout_classes PARAMS ((void)); 926 void java_reorder_fields PARAMS ((void)); 927 tree java_method_add_stmt PARAMS ((tree, tree)); 928 int java_report_errors PARAMS ((void)); 929 extern tree do_resolve_class PARAMS ((tree, tree, tree, tree)); 930 #endif 931 char *java_get_line_col PARAMS ((const char *, int, int)); 932 extern void reset_report PARAMS ((void)); 933 934 /* Always in use, no matter what you compile */ 935 void java_push_parser_context PARAMS ((void)); 936 void java_pop_parser_context PARAMS ((int)); 937 void java_init_lex PARAMS ((FILE *, const char *)); 938 extern void java_parser_context_save_global PARAMS ((void)); 939 extern void java_parser_context_restore_global PARAMS ((void)); 940 int yyparse PARAMS ((void)); 941 extern int java_parse PARAMS ((void)); 942 extern void yyerror PARAMS ((const char *)) 943 #ifdef JC1_LITE 944 ATTRIBUTE_NORETURN 945 #endif 946 ; 947 extern void java_expand_classes PARAMS ((void)); 948 949 extern struct parser_ctxt *ctxp; 950 extern struct parser_ctxt *ctxp_for_generation; 951 952 #endif /* ! GCC_JAVA_PARSE_H */ 953