1/* Language parser definitions for the GNU compiler for the Java(TM) language. 2 Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc. 3 Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com) 4 5This file is part of GNU CC. 6 7GNU CC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU CC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU CC; see the file COPYING. If not, write to 19the Free Software Foundation, 59 Temple Place - Suite 330, 20Boston, MA 02111-1307, USA. 21 22Java and all Java-based marks are trademarks or registered trademarks 23of Sun Microsystems, Inc. in the United States and other countries. 24The Free Software Foundation is independent of Sun Microsystems, Inc. */ 25 26#ifndef JV_LANG_H 27#define JV_LANG_H 28 29#include "lex.h" 30 31/* Extern global variable declarations */ 32extern int java_error_count; 33extern struct obstack temporary_obstack; 34extern struct obstack permanent_obstack; 35extern int quiet_flag; 36 37#ifndef JC1_LITE 38/* Function extern to java/ */ 39extern int int_fits_type_p PROTO ((tree, tree)); 40extern tree stabilize_reference PROTO ((tree)); 41#endif 42 43/* Macros for verbose debug info */ 44#ifdef VERBOSE_SKELETON 45#define RULE( rule ) printf ( "jv_yacc:%d: rule %s\n", lineno, rule ) 46#else 47#define RULE( rule ) 48#endif 49 50#ifdef VERBOSE_SKELETON 51#undef SOURCE_FRONTEND_DEBUG 52#define SOURCE_FRONTEND_DEBUG(X) \ 53 {if (!quiet_flag) {printf ("* "); printf X; putchar ('\n');} } 54#else 55#define SOURCE_FRONTEND_DEBUG(X) 56#endif 57 58/* Macro for error recovering */ 59#ifdef YYDEBUG 60#define RECOVERED \ 61 { if (!quiet_flag) {printf ("** Recovered\n");} } 62#define DRECOVERED(s) \ 63 { if (!quiet_flag) {printf ("** Recovered (%s)\n", #s);}} 64#else 65#define RECOVERED 66#define DRECOVERED(s) 67#endif 68 69#define DRECOVER(s) {yyerrok; DRECOVERED(s)} 70#define RECOVER {yyerrok; RECOVERED} 71 72#define YYERROR_NOW ctxp->java_error_flag = 1 73#define YYNOT_TWICE if (ctxp->prevent_ese != lineno) 74 75/* Accepted modifiers */ 76#define CLASS_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT|ACC_FINAL 77#define FIELD_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_FINAL| \ 78 ACC_STATIC|ACC_TRANSIENT|ACC_VOLATILE 79#define METHOD_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_ABSTRACT| \ 80 ACC_STATIC|ACC_FINAL|ACC_SYNCHRONIZED|ACC_NATIVE 81#define INTERFACE_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT 82#define INTERFACE_METHOD_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT 83#define INTERFACE_FIELD_MODIFIERS ACC_PUBLIC|ACC_STATIC|ACC_FINAL 84 85/* Getting a modifier WFL */ 86#define MODIFIER_WFL(M) (ctxp->modifier_ctx [(M) - PUBLIC_TK]) 87 88/* Check on modifiers */ 89#define THIS_MODIFIER_ONLY(f, m, v, count, l) \ 90 if ((f) & (m)) \ 91 { \ 92 tree node = ctxp->modifier_ctx [v]; \ 93 if ((l) \ 94 && ((EXPR_WFL_COLNO (node) > EXPR_WFL_COLNO (l)) \ 95 || (EXPR_WFL_LINENO (node) > EXPR_WFL_LINENO (l)))) \ 96 l = node; \ 97 else if (!(l)) \ 98 l = node; \ 99 count++; \ 100 } 101 102#define ABSTRACT_CHECK(FLAG, V, CL, S) \ 103 if ((FLAG) & (V)) \ 104 parse_error_context ((CL), S " method can't be abstract"); 105 106#define JCONSTRUCTOR_CHECK(FLAG, V, CL, S) \ 107 if ((FLAG) & (V)) \ 108 parse_error_context ((CL), "Constructor can't be %s", (S)); \ 109 110/* Misc. */ 111#define exit_java_complete_class() \ 112 { \ 113 pop_obstacks (); \ 114 return; \ 115 } 116 117#define CLASS_OR_INTERFACE(decl, s1, s2) \ 118 (decl ? \ 119 ((get_access_flags_from_decl (TYPE_NAME (TREE_TYPE (decl))) \ 120 & ACC_INTERFACE) ? \ 121 s2 : s1) : ((s1 [0]=='S'|| s1 [0]=='s') ? \ 122 (s1 [0]=='S' ? "Supertype" : "supertype") : \ 123 (s1 [0] > 'A' ? "Type" : "type"))) 124 125#define GET_REAL_TYPE(TYPE) \ 126 (TREE_CODE (TYPE) == TREE_LIST ? TREE_PURPOSE (TYPE) : TYPE) 127 128#define GET_METHOD_NAME(METHOD) \ 129 (TREE_CODE (DECL_NAME (METHOD)) == EXPR_WITH_FILE_LOCATION ? \ 130 EXPR_WFL_NODE (DECL_NAME (METHOD)) : DECL_NAME (METHOD)) 131 132/* Get TYPE name string, regardless whether TYPE is a class or an 133 array. */ 134#define GET_TYPE_NAME(TYPE) \ 135 (TREE_CODE (TYPE_NAME (TYPE)) == IDENTIFIER_NODE ? \ 136 IDENTIFIER_POINTER (TYPE_NAME (TYPE)) : \ 137 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (TYPE)))) 138 139/* Pedantic warning on obsolete modifiers. Note: when cl is NULL, 140 flags was set artificially, such as for a interface method */ 141#define OBSOLETE_MODIFIER_WARNING(cl, flags, modifier, format, arg) \ 142 { \ 143 if (flag_redundant && (cl) && ((flags) & (modifier))) \ 144 parse_warning_context (cl, \ 145 "Discouraged redundant use of `%s' modifier " \ 146 "in declaration of " format, \ 147 java_accstring_lookup (modifier), arg); \ 148 } 149 150/* Quickly build a temporary pointer on hypothetical type NAME. */ 151#define BUILD_PTR_FROM_NAME(ptr, name) \ 152 { \ 153 ptr = build (POINTER_TYPE, NULL_TREE); \ 154 TYPE_NAME (ptr) = name; \ 155 } 156 157#define INCOMPLETE_TYPE_P(NODE) \ 158 ((TREE_CODE (NODE) == POINTER_TYPE) \ 159 && !TREE_TYPE (NODE) \ 160 && TREE_CODE (TYPE_NAME (NODE)) == IDENTIFIER_NODE) 161 162/* Set the EMIT_LINE_NOTE flag of a EXPR_WLF to 1 if debug information 163 are requested. Works in the context of a parser rule. */ 164#define JAVA_MAYBE_GENERATE_DEBUG_INFO(node) \ 165 (debug_info_level != DINFO_LEVEL_NONE ? \ 166 EXPR_WFL_EMIT_LINE_NOTE (node) = 1, node : node) 167 168/* Types classification, according to the JLS, section 4.2 */ 169#define JFLOAT_TYPE_P(TYPE) (TYPE && TREE_CODE ((TYPE)) == REAL_TYPE) 170#define JINTEGRAL_TYPE_P(TYPE) ((TYPE) \ 171 && (TREE_CODE ((TYPE)) == INTEGER_TYPE \ 172 || TREE_CODE ((TYPE)) == CHAR_TYPE)) 173#define JNUMERIC_TYPE_P(TYPE) ((TYPE) \ 174 && (JFLOAT_TYPE_P ((TYPE)) \ 175 || JINTEGRAL_TYPE_P ((TYPE)))) 176#define JPRIMITIVE_TYPE_P(TYPE) ((TYPE) \ 177 && (JNUMERIC_TYPE_P ((TYPE)) \ 178 || TREE_CODE ((TYPE)) == BOOLEAN_TYPE)) 179 180#define JBSC_TYPE_P(TYPE) ((TYPE) && (((TYPE) == byte_type_node) \ 181 || ((TYPE) == short_type_node) \ 182 || ((TYPE) == char_type_node))) 183 184/* Not defined in the LRM */ 185#define JSTRING_TYPE_P(TYPE) ((TYPE) \ 186 && ((TYPE) == string_type_node || \ 187 (TREE_CODE (TYPE) == POINTER_TYPE && \ 188 TREE_TYPE (TYPE) == string_type_node))) 189#define JSTRING_P(NODE) ((NODE) \ 190 && (TREE_CODE (NODE) == STRING_CST \ 191 || IS_CRAFTED_STRING_BUFFER_P (NODE) \ 192 || JSTRING_TYPE_P (TREE_TYPE (NODE)))) 193 194#define JREFERENCE_TYPE_P(TYPE) ((TYPE) \ 195 && (TREE_CODE (TYPE) == RECORD_TYPE \ 196 || (TREE_CODE (TYPE) == POINTER_TYPE \ 197 && TREE_CODE (TREE_TYPE (TYPE)) == \ 198 RECORD_TYPE))) 199#define JNULLP_TYPE_P(TYPE) ((TYPE) && (TREE_CODE (TYPE) == POINTER_TYPE) \ 200 && (TYPE) == TREE_TYPE (null_pointer_node)) 201 202/* Other predicate */ 203#define JDECL_P(NODE) (NODE && (TREE_CODE (NODE) == PARM_DECL \ 204 || TREE_CODE (NODE) == VAR_DECL \ 205 || TREE_CODE (NODE) == FIELD_DECL)) 206 207#define TYPE_INTERFACE_P(TYPE) \ 208 (CLASS_P (TYPE) && CLASS_INTERFACE (TYPE_NAME (TYPE))) 209 210#define TYPE_CLASS_P(TYPE) (CLASS_P (TYPE) \ 211 && !CLASS_INTERFACE (TYPE_NAME (TYPE))) 212 213/* Standard error messages */ 214#define ERROR_CANT_CONVERT_TO_BOOLEAN(OPERATOR, NODE, TYPE) \ 215 parse_error_context \ 216 ((OPERATOR), "Incompatible type for `%s'. Can't convert `%s' to " \ 217 "boolean", operator_string ((NODE)), lang_printable_name ((TYPE),0)) 218 219#define ERROR_CANT_CONVERT_TO_NUMERIC(OPERATOR, NODE, TYPE) \ 220 parse_error_context \ 221 ((OPERATOR), "Incompatible type for `%s'. Can't convert `%s' to " \ 222 "numeric type", operator_string ((NODE)), lang_printable_name ((TYPE), 0)) 223 224#define ERROR_CAST_NEEDED_TO_INTEGRAL(OPERATOR, NODE, TYPE) \ 225 parse_error_context \ 226 ((OPERATOR), (JPRIMITIVE_TYPE_P (TYPE) ? \ 227 "Incompatible type for `%s'. Explicit cast needed to convert " \ 228 "`%s' to integral" : "Incompatible type for `%s'. Can't convert " \ 229 "`%s' to integral"), operator_string ((NODE)), \ 230 lang_printable_name ((TYPE), 0)) 231 232#define ERROR_VARIABLE_NOT_INITIALIZED(WFL, V) \ 233 parse_error_context \ 234 ((WFL), "Variable `%s' may not have been initialized", \ 235 IDENTIFIER_POINTER (V)) 236 237/* Definition for loop handling. This is Java's own definition of a 238 loop body. See parse.y for documentation. It's valid once you hold 239 a loop's body (LOOP_EXPR_BODY) */ 240 241/* The loop main block is the one hold the condition and the loop body */ 242#define LOOP_EXPR_BODY_MAIN_BLOCK(NODE) TREE_OPERAND (NODE, 0) 243/* And then there is the loop update block */ 244#define LOOP_EXPR_BODY_UPDATE_BLOCK(NODE) TREE_OPERAND (NODE, 1) 245 246/* Inside the loop main block, there is the loop condition and the 247 loop body. They may be reversed if the loop being described is a 248 do-while loop. NOTE: if you use a WFL around the EXIT_EXPR so you 249 can issue debug info for it, the EXIT_EXPR will be one operand 250 further. */ 251#define LOOP_EXPR_BODY_CONDITION_EXPR(NODE, R) \ 252 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 1 : 0)) 253 254/* Here is the labeled block the loop real body is encapsulated in */ 255#define LOOP_EXPR_BODY_LABELED_BODY(NODE, R) \ 256 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 0 : 1)) 257/* And here is the loop's real body */ 258#define LOOP_EXPR_BODY_BODY_EXPR(NODE, R) \ 259 LABELED_BLOCK_BODY (LOOP_EXPR_BODY_LABELED_BODY(NODE, R)) 260 261#define PUSH_LABELED_BLOCK(B) \ 262 { \ 263 TREE_CHAIN (B) = ctxp->current_labeled_block; \ 264 ctxp->current_labeled_block = (B); \ 265 } 266#define POP_LABELED_BLOCK() \ 267 ctxp->current_labeled_block = TREE_CHAIN (ctxp->current_labeled_block) 268 269#define PUSH_LOOP(L) \ 270 { \ 271 TREE_CHAIN (L) = ctxp->current_loop; \ 272 ctxp->current_loop = (L); \ 273 } 274#define POP_LOOP() ctxp->current_loop = TREE_CHAIN (ctxp->current_loop) 275 276#define PUSH_EXCEPTIONS(E) \ 277 currently_caught_type_list = \ 278 tree_cons (NULL_TREE, (E), currently_caught_type_list); 279 280#define POP_EXCEPTIONS() \ 281 currently_caught_type_list = TREE_CHAIN (currently_caught_type_list) 282 283/* Check that we're inside a try block. */ 284#define IN_TRY_BLOCK_P() \ 285 (currently_caught_type_list \ 286 && ((TREE_VALUE (currently_caught_type_list) != \ 287 DECL_FUNCTION_THROWS (current_function_decl)) \ 288 || TREE_CHAIN (currently_caught_type_list))) 289 290/* Check that we have exceptions in E. */ 291#define EXCEPTIONS_P(E) ((E) ? TREE_VALUE (E) : NULL_TREE) 292 293/* Invocation modes, as returned by invocation_mode (). */ 294enum { 295 INVOKE_STATIC, 296 INVOKE_NONVIRTUAL, 297 INVOKE_SUPER, 298 INVOKE_INTERFACE, 299 INVOKE_VIRTUAL 300}; 301 302/* We need the resolution stuff only if we compile jc1 */ 303#ifndef JC1_LITE 304 305/* Unresolved type identifiers handling. When we process the source 306 code, we blindly accept an unknown type identifier and try to 307 resolve it later. When an unknown type identifier is encountered 308 and used, we record in a struct jdep element what the incomplete 309 type is and what it should patch. Later, java_complete_class will 310 process all classes known to have unresolved type 311 dependencies. Within each of these classes, this routine will 312 process unresolved type dependencies (JDEP_TO_RESOLVE), patch what 313 needs to be patched in the dependent tree node (JDEP_GET_PATCH, 314 JDEP_APPLY_PATCH) and perform other actions dictated by the context 315 of the patch (JDEP_KIND). The ideas are: we patch only what needs 316 to be patched, and with java_complete_class called at the right 317 time, we will start processing incomplete function bodies tree 318 nodes with everything external to function's bodies already 319 completed, it makes things much simpler. */ 320 321enum jdep_code { 322 JDEP_NO_PATCH, /* Must be first */ 323 JDEP_SUPER, /* Patch the type of one type 324 supertype. Requires some check 325 before it's done */ 326 JDEP_FIELD, /* Patch the type of a class field */ 327 328 /* JDEP_{METHOD,METHOD_RETURN,METHOD_END} to be kept in order */ 329 JDEP_METHOD, /* Mark the beginning of the patching 330 of a method declaration, including 331 it's arguments */ 332 JDEP_METHOD_RETURN, /* Mark the beginning of the patching 333 of a method declaration. Arguments 334 aren't patched, only the returned 335 type is */ 336 JDEP_METHOD_END, /* Mark the end of the patching of a 337 method declaration. It indicates 338 that it's time to compute and 339 install a new signature */ 340 341 JDEP_INTERFACE, /* Patch the type of a Class/interface 342 extension */ 343 JDEP_VARIABLE, /* Patch the type of a variable declaration */ 344 JDEP_PARM, /* Patch the type of a parm declaration */ 345 JDEP_TYPE, /* Patch a random tree node type, 346 without the need for any specific 347 actions */ 348 JDEP_EXCEPTION /* Patch exceptions specified by `throws' */ 349}; 350 351typedef struct _jdep { 352#ifdef ONLY_INT_FIELDS 353 int kind : 8; /* Type of patch */ 354#else 355 enum jdep_code kind : 8; 356#endif 357 358 int flag0 : 1; /* Some flags */ 359 tree decl; /* Tied decl/or WFL */ 360 tree solv; /* What to solve */ 361 tree wfl; /* Where thing to resolve where found */ 362 tree misc; /* Miscellaneous info (optional). */ 363 tree *patch; /* Address of a location to patch */ 364 struct _jdep *next; /* Linked list */ 365} jdep; 366 367 368#define JDEP_DECL(J) ((J)->decl) 369#define JDEP_DECL_WFL(J) ((J)->decl) 370#define JDEP_KIND(J) ((J)->kind) 371#define JDEP_SOLV(J) ((J)->solv) 372#define JDEP_WFL(J) ((J)->wfl) 373#define JDEP_MISC(J) ((J)->misc) 374#define JDEP_CLASS(J) ((J)->class) 375#define JDEP_APPLY_PATCH(J,P) (*(J)->patch = (P)) 376#define JDEP_GET_PATCH(J) ((J)->patch) 377#define JDEP_CHAIN(J) ((J)->next) 378#define JDEP_TO_RESOLVE(J) ((J)->solv) 379#define JDEP_RESOLVED_DECL(J) ((J)->solv) 380#define JDEP_RESOLVED(J, D) ((J)->solv = D) 381#define JDEP_RESOLVED_P(J) \ 382 (!(J)->solv || TREE_CODE ((J)->solv) != POINTER_TYPE) 383 384typedef struct _jdeplist { 385 jdep *first; 386 jdep *last; 387 struct _jdeplist *next; 388} jdeplist; 389 390#endif /* JC1_LITE */ 391 392#define CLASSD_FIRST(CD) ((CD)->first) 393#define CLASSD_LAST(CD) ((CD)->last) 394#define CLASSD_CHAIN(CD) ((CD)->next) 395 396#define JDEP_INSERT(L,J) \ 397 { \ 398 if (!(L)->first) \ 399 (L)->last = (L)->first = (J); \ 400 else \ 401 { \ 402 JDEP_CHAIN ((L)->last) = (J); \ 403 (L)->last = (J); \ 404 } \ 405 } 406 407/* if TYPE can't be resolved, obtain something suitable for its 408 resolution (TYPE is saved in SAVE before being changed). and set 409 CHAIN to 1. Otherwise, type is set to something usable. CHAIN is 410 usually used to determine that a new DEP must be installed on TYPE. 411 Note that when compiling java.lang.Object, references to Object are 412 java.lang.Object. */ 413#define SET_TYPE_FOR_RESOLUTION(TYPE, SAVE, CHAIN) \ 414 { \ 415 tree returned_type; \ 416 (CHAIN) = 0; \ 417 if (TREE_TYPE (ctxp->current_parsed_class) == object_type_node \ 418 && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION \ 419 && EXPR_WFL_NODE (TYPE) == unqualified_object_id_node) \ 420 (TYPE) = object_type_node; \ 421 else \ 422 { \ 423 if (unresolved_type_p (type, &returned_type)) \ 424 { \ 425 if (returned_type) \ 426 (TYPE) = returned_type; \ 427 else \ 428 { \ 429 (SAVE) = (TYPE); \ 430 (TYPE) = obtain_incomplete_type (TYPE); \ 431 CHAIN = 1; \ 432 } \ 433 } \ 434 } \ 435 } 436/* Promote a type if it won't be registered as a patch */ 437#define PROMOTE_RECORD_IF_COMPLETE(TYPE, IS_INCOMPLETE) \ 438 { \ 439 if (!(IS_INCOMPLETE) && TREE_CODE (TYPE) == RECORD_TYPE) \ 440 (TYPE) = promote_type (TYPE); \ 441 } 442 443/* Insert a DECL in the current block */ 444#define BLOCK_CHAIN_DECL(NODE) \ 445 { \ 446 TREE_CHAIN ((NODE)) = \ 447 BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)); \ 448 BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)) = (NODE); \ 449 } 450 451/* Return the current block, either found in the body of the currently 452 declared function or in the current static block being defined. */ 453#define GET_CURRENT_BLOCK(F) ((F) ? DECL_FUNCTION_BODY ((F)) : \ 454 current_static_block) 455 456/* For an artificial BLOCK (created to house a local variable declaration not 457 at the start of an existing block), the parent block; otherwise NULL. */ 458#define BLOCK_EXPR_ORIGIN(NODE) BLOCK_ABSTRACT_ORIGIN(NODE) 459 460/* Merge an other line to the source line number of a decl. Used to 461 remember function's end. */ 462#define DECL_SOURCE_LINE_MERGE(DECL,NO) DECL_SOURCE_LINE(DECL) |= (NO << 16) 463 464/* Retrieve those two info separately. */ 465#define DECL_SOURCE_LINE_FIRST(DECL) (DECL_SOURCE_LINE(DECL) & 0x0000ffff) 466#define DECL_SOURCE_LINE_LAST(DECL) (DECL_SOURCE_LINE(DECL) >> 16) 467 468/* Retrieve line/column from a WFL. */ 469#define EXPR_WFL_GET_LINECOL(V,LINE,COL) \ 470 { \ 471 (LINE) = (V) >> 12; \ 472 (COL) = (V) & 0xfff; \ 473 } 474/* Add X to the column number information */ 475#define EXPR_WFL_ADD_COL(V, X) \ 476 (V) = (((V) & 0xfffff000) | ((((V) & 0xfff) + (X)) & 0xfff)) 477 478/* Build a WFL for expression nodes */ 479#define BUILD_EXPR_WFL(NODE, WFL) \ 480 build_expr_wfl ((NODE), input_filename, EXPR_WFL_LINENO ((WFL)), \ 481 EXPR_WFL_COLNO ((WFL))) 482 483#define EXPR_WFL_QUALIFICATION(WFL) TREE_OPERAND ((WFL), 1) 484#define QUAL_WFL(NODE) TREE_PURPOSE (NODE) 485#define QUAL_RESOLUTION(NODE) TREE_VALUE (NODE) 486#define QUAL_DECL_TYPE(NODE) GET_SKIP_TYPE (NODE) 487 488#define GET_SKIP_TYPE(NODE) \ 489 (TREE_CODE (TREE_TYPE (NODE)) == POINTER_TYPE ? \ 490 TREE_TYPE (TREE_TYPE (NODE)): TREE_TYPE (NODE)) 491 492/* Handy macros for the walk operation */ 493#define COMPLETE_CHECK_OP(NODE, N) \ 494{ \ 495 TREE_OPERAND ((NODE), (N)) = \ 496 java_complete_tree (TREE_OPERAND ((NODE), (N))); \ 497 if (TREE_OPERAND ((NODE), (N)) == error_mark_node) \ 498 return error_mark_node; \ 499} 500#define COMPLETE_CHECK_OP_0(NODE) COMPLETE_CHECK_OP(NODE, 0) 501#define COMPLETE_CHECK_OP_1(NODE) COMPLETE_CHECK_OP(NODE, 1) 502#define COMPLETE_CHECK_OP_2(NODE) COMPLETE_CHECK_OP(NODE, 2) 503 504/* Building invocations: append(ARG) and StringBuffer(ARG) */ 505#define BUILD_APPEND(ARG) \ 506 ((JSTRING_TYPE_P (TREE_TYPE (ARG)) || JPRIMITIVE_TYPE_P (TREE_TYPE (ARG))) \ 507 ? build_method_invocation (wfl_append, \ 508 ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE)\ 509 : build_method_invocation (wfl_append, \ 510 ARG ? build_tree_list (NULL, \ 511 build1 (CONVERT_EXPR, \ 512 object_type_node,\ 513 (ARG))) \ 514 : NULL_TREE)) 515#define BUILD_STRING_BUFFER(ARG) \ 516 build_new_invocation (wfl_string_buffer, \ 517 (ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE)) 518 519/* For exception handling, build diverse function calls */ 520#define BUILD_ASSIGN_EXCEPTION_INFO(WHERE, TO) \ 521 { \ 522 (WHERE) = build (MODIFY_EXPR, void_type_node, (TO), \ 523 soft_exceptioninfo_call_node); \ 524 TREE_SIDE_EFFECTS (WHERE) = 1; \ 525 } 526 527#define BUILD_THROW(WHERE, WHAT) \ 528 { \ 529 (WHERE) = build (CALL_EXPR, void_type_node, \ 530 build_address_of (throw_node), \ 531 build_tree_list (NULL_TREE, (WHAT)), NULL_TREE); \ 532 TREE_SIDE_EFFECTS ((WHERE)) = 1; \ 533 } 534 535/* Set wfl_operator for the most accurate error location */ 536#define SET_WFL_OPERATOR(WHICH, NODE, WFL) \ 537 EXPR_WFL_LINECOL (WHICH) = \ 538 (TREE_CODE (WFL) == EXPR_WITH_FILE_LOCATION ? \ 539 EXPR_WFL_LINECOL (WFL) : EXPR_WFL_LINECOL (NODE)) 540 541#define PATCH_METHOD_RETURN_ERROR() \ 542 { \ 543 if (ret_decl) \ 544 *ret_decl = NULL_TREE; \ 545 return error_mark_node; \ 546 } 547 548/* Convenient macro to check. Assumes that CLASS is a CLASS_DECL. */ 549#define CHECK_METHODS(CLASS) \ 550 { \ 551 if (CLASS_INTERFACE ((CLASS))) \ 552 java_check_abstract_methods ((CLASS)); \ 553 else \ 554 java_check_regular_methods ((CLASS)); \ 555 } 556 557/* Using and reseting the @deprecated tag flag */ 558#define CHECK_DEPRECATED(DECL) \ 559 { \ 560 if (ctxp->deprecated) \ 561 DECL_DEPRECATED (DECL) = 1; \ 562 ctxp->deprecated = 0; \ 563 } 564 565/* Register an import */ 566#define REGISTER_IMPORT(WHOLE, NAME) \ 567{ \ 568 IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P ((NAME)) = 1; \ 569 node = build_tree_list ((WHOLE), (NAME)); \ 570 TREE_CHAIN (node) = ctxp->import_list; \ 571 ctxp->import_list = node; \ 572} 573 574/* Safe check that DECL is <clinit> */ 575#define IS_CLINIT(DECL) \ 576 (DECL != NULL_TREE && DECL_NAME (DECL) == clinit_identifier_node) 577 578/* Macro to access the osb (opening square bracket) count */ 579#define CURRENT_OSB(C) (C)->osb_number [(C)->osb_depth] 580 581/* Macro for the xreferencer */ 582#define DECL_END_SOURCE_LINE(DECL) DECL_FRAME_SIZE (DECL) 583#define DECL_INHERITED_SOURCE_LINE(DECL) DECL_FIELD_SIZE (DECL) 584 585/* Parser context data structure. */ 586struct parser_ctxt { 587 588 char *filename; /* Current filename */ 589 FILE *finput; /* Current file input stream */ 590 struct parser_ctxt *next; 591 592 struct java_line *p_line, *c_line; /* Previous and current line */ 593 java_lc elc; /* Error's line column info */ 594 unicode_t unget_utf8_value; /* An unget utf8 value */ 595 int ccb_indent; /* Keep track of {} indent, lexer */ 596 int first_ccb_indent1; /* First { at ident level 1 */ 597 int last_ccb_indent1; /* Last } at ident level 1 */ 598 int parser_ccb_indent; /* Keep track of {} indent, parser */ 599 int osb_depth; /* Current depth of [ in an expression */ 600 int osb_limit; /* Limit of this depth */ 601 int *osb_number; /* Keep track of ['s */ 602 int minus_seen; /* Integral literal overflow */ 603 int lineno; /* Current lineno */ 604 int java_error_flag; /* Report error when true */ 605 int deprecated; /* @deprecated tag seen */ 606 607 /* This section is defined only if we compile jc1 */ 608#ifndef JC1_LITE 609 tree modifier_ctx [11]; /* WFL of modifiers */ 610 tree current_class; /* Current class */ 611 tree current_function_decl; /* Current function decl, save/restore */ 612 613 struct JCF *current_jcf; /* CU jcf */ 614 615 int prevent_ese; /* Prevent expression statement error */ 616 int class_err; /* Flag to report certain errors */ 617 618 int formal_parameter_number; /* Number of parameters found */ 619 int interface_number; /* # itfs declared to extend an itf def */ 620 621 tree package; /* Defined package ID */ 622 623 /* Those tow list are saved accross file traversal */ 624 tree incomplete_class; /* List of non-complete classes */ 625 tree gclass_list; /* All classes seen from source code */ 626 627 /* These two lists won't survive file traversal */ 628 tree class_list; /* List of classes in a CU */ 629 jdeplist *classd_list; /* Classe dependencies in a CU */ 630 631 tree current_parsed_class; /* Class currently parsed */ 632 tree current_parsed_class_un; /* Curr. parsed class unqualified name */ 633 634 tree non_static_initialized; /* List of non static initialized fields */ 635 tree static_initialized; /* List of static non final initialized */ 636 637 tree import_list; /* List of import */ 638 tree import_demand_list; /* List of import on demand */ 639 640 tree current_loop; /* List of the currently nested 641 loops/switches */ 642 tree current_labeled_block; /* List of currently nested 643 labeled blocks. */ 644 645 int pending_block; /* Pending block to close */ 646 647 int explicit_constructor_p; /* True when processing an explicit 648 constructor. This flag is used to trap 649 illegal argument usage during an 650 explicit constructor invocation. */ 651#endif /* JC1_LITE */ 652}; 653 654#ifndef JC1_LITE 655void safe_layout_class PROTO ((tree)); 656void java_complete_class PROTO ((void)); 657void java_check_circular_reference PROTO ((void)); 658void java_check_final PROTO ((void)); 659void java_layout_classes PROTO ((void)); 660tree java_method_add_stmt PROTO ((tree, tree)); 661void java_expand_switch PROTO ((tree)); 662int java_report_errors PROTO (()); 663extern tree do_resolve_class PROTO ((tree, tree, tree)); 664#endif 665char *java_get_line_col PROTO ((char *, int, int)); 666extern void reset_report PROTO ((void)); 667 668/* Always in use, no matter what you compile */ 669void java_push_parser_context PROTO ((void)); 670void java_pop_parser_context PROTO ((int)); 671void java_init_lex PROTO ((void)); 672extern void java_parser_context_save_global PROTO ((void)); 673extern void java_parser_context_restore_global PROTO ((void)); 674int yyparse PROTO ((void)); 675extern int java_parse PROTO ((void)); 676int yylex (); 677void yyerror PROTO ((char *)); 678extern void java_expand_classes PROTO ((void)); 679#endif 680