gcc/java/parse.h

   1 /* Language parser definitions for the GNU compiler for the Java(TM) language.
   2    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
   3    Free Software Foundation, Inc.
   4    Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com)
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  21 Boston, MA 02110-1301, USA.
  22
  23 Java and all Java-based marks are trademarks or registered trademarks
  24 of Sun Microsystems, Inc. in the United States and other countries.
  25 The Free Software Foundation is independent of Sun Microsystems, Inc.  */
  26
  27 #ifndef GCC_JAVA_PARSE_H
  28 #define GCC_JAVA_PARSE_H
  29
  30 #include "lex.h"
  31
  32 /* Extern global variable declarations */
  33 extern int java_error_count;
  34 extern struct obstack temporary_obstack;
  35 extern int quiet_flag;
  36
  37 #ifndef JC1_LITE
  38 /* Function extern to java/ */
  39 extern int int_fits_type_p (tree, tree);
  40 extern tree stabilize_reference (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 != input_line)
  74
  75 /* Accepted modifiers */
  76 #define CLASS_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT|ACC_FINAL|ACC_STRICT
  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                          ACC_STRICT
  82 #define INTERFACE_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT|ACC_STRICT
  83 #define INTERFACE_INNER_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_ABSTRACT| \
  84                                   ACC_STATIC|ACC_PRIVATE
  85 #define INTERFACE_METHOD_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT
  86 #define INTERFACE_FIELD_MODIFIERS ACC_PUBLIC|ACC_STATIC|ACC_FINAL
  87
  88 /* Getting a modifier WFL */
  89 #define MODIFIER_WFL(M)   (ctxp->modifier_ctx [(M) - PUBLIC_TK])
  90
  91 /* Check on modifiers */
  92 #ifdef USE_MAPPED_LOCATION
  93 #define THIS_MODIFIER_ONLY(f, m, v, count, l)                           \
  94   if ((f) & (m))                                                        \
  95     {                                                                   \
  96       tree node = MODIFIER_WFL (v);                                     \
  97       if (!l)                                                           \
  98         l = node;                                                       \
  99       else                                                              \
 100         {                                                               \
 101           expanded_location lloc = expand_location (EXPR_LOCATION (l)); \
 102           expanded_location nloc = expand_location (EXPR_LOCATION (node)); \
 103           if (nloc.column > lloc.column || nloc.line > lloc.line)       \
 104             l = node;                                                   \
 105         }                                                               \
 106       count++;                                                          \
 107     }
 108 #else
 109 #define THIS_MODIFIER_ONLY(f, m, v, count, l)                           \
 110   if ((f) & (m))                                                        \
 111     {                                                                   \
 112       tree node = MODIFIER_WFL (v);                                     \
 113       if ((l)                                                           \
 114           && ((EXPR_WFL_COLNO (node) > EXPR_WFL_COLNO (l))              \
 115               || (EXPR_WFL_LINENO (node) > EXPR_WFL_LINENO (l))))       \
 116         l = node;                                                       \
 117       else if (!(l))                                                    \
 118         l = node;                                                       \
 119       count++;                                                          \
 120     }
 121 #endif
 122
 123 #ifdef ATTRIBUTE_GCC_DIAG
 124 extern void parse_error_context (tree cl, const char *gmsgid, ...) ATTRIBUTE_GCC_DIAG(2,3);
 125 #endif
 126
 127 #define ABSTRACT_CHECK(FLAG, V, CL, S)                          \
 128   if ((FLAG) & (V))                                             \
 129     parse_error_context ((CL), "%s method can't be abstract", (S));
 130
 131 #define JCONSTRUCTOR_CHECK(FLAG, V, CL, S)                      \
 132   if ((FLAG) & (V))                                             \
 133     parse_error_context ((CL), "Constructor can't be %s", (S)); \
 134
 135 /* Misc. */
 136 #define exit_java_complete_class()              \
 137   {                                             \
 138     return;                                     \
 139   }
 140
 141 #define CLASS_OR_INTERFACE(decl, s1, s2)                        \
 142    (decl ?                                                      \
 143     ((get_access_flags_from_decl (TYPE_NAME (TREE_TYPE (decl))) \
 144       & ACC_INTERFACE) ?                                        \
 145      s2 : s1) : ((s1 [0]=='S'|| s1 [0]=='s') ?                  \
 146                  (s1 [0]=='S' ? "Supertype" : "supertype") :    \
 147                  (s1 [0] > 'A' ? "Type" : "type")))
 148
 149 #define GET_REAL_TYPE(TYPE)                                     \
 150   (TREE_CODE (TYPE) == TREE_LIST ? TREE_PURPOSE (TYPE) : TYPE)
 151
 152 /* Get TYPE name string, regardless whether TYPE is a class or an
 153    array. */
 154 #define GET_TYPE_NAME(TYPE)                             \
 155   (TREE_CODE (TYPE_NAME (TYPE)) == IDENTIFIER_NODE ?    \
 156    IDENTIFIER_POINTER (TYPE_NAME (TYPE)) :              \
 157    IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (TYPE))))
 158
 159 /* Pedantic warning on obsolete modifiers. Note: when cl is NULL,
 160    flags was set artificially, such as for an interface method.  */
 161 #define OBSOLETE_MODIFIER_WARNING(cl, flags, __modifier, arg)                \
 162   {                                                                          \
 163     if (flag_redundant && (cl) && ((flags) & (__modifier)))                  \
 164       parse_warning_context (cl,                                             \
 165      "Discouraged redundant use of %qs modifier in declaration of %s",      \
 166                              java_accstring_lookup (__modifier), arg);       \
 167   }
 168 #define OBSOLETE_MODIFIER_WARNING2(cl, flags, __modifier, arg1, arg2)        \
 169   {                                                                          \
 170     if (flag_redundant && (cl) && ((flags) & (__modifier)))                  \
 171       parse_warning_context (cl,                                             \
 172      "Discouraged redundant use of %qs modifier in declaration of %s %qs", \
 173                              java_accstring_lookup (__modifier), arg1, arg2);\
 174   }
 175
 176 /* Quickly build a temporary pointer on hypothetical type NAME. */
 177 #define BUILD_PTR_FROM_NAME(ptr, name)          \
 178   do {                                          \
 179     ptr = make_node (POINTER_TYPE);             \
 180     TYPE_NAME (ptr) = name;                     \
 181   } while (0)
 182
 183 #define INCOMPLETE_TYPE_P(NODE)                         \
 184   ((TREE_CODE (NODE) == POINTER_TYPE)                   \
 185    && !TREE_TYPE (NODE)                                 \
 186    && TREE_CODE (TYPE_NAME (NODE)) == IDENTIFIER_NODE)
 187
 188 #ifndef USE_MAPPED_LOCATION
 189 /* Set the EMIT_LINE_NOTE flag of a EXPR_WLF to 1 if debug information
 190    are requested. Works in the context of a parser rule. */
 191 #define JAVA_MAYBE_GENERATE_DEBUG_INFO(node)            \
 192   do {if (debug_info_level != DINFO_LEVEL_NONE) \
 193       EXPR_WFL_EMIT_LINE_NOTE (node) = 1; } while (0)
 194 #endif
 195
 196 /* Types classification, according to the JLS, section 4.2 */
 197 #define JFLOAT_TYPE_P(TYPE)      (TYPE && TREE_CODE ((TYPE)) == REAL_TYPE)
 198 #define JINTEGRAL_TYPE_P(TYPE)   ((TYPE)                                   \
 199                                   && (TREE_CODE ((TYPE)) == INTEGER_TYPE   \
 200                                       || TREE_CODE ((TYPE)) == CHAR_TYPE))
 201 #define JNUMERIC_TYPE_P(TYPE)    ((TYPE)                                \
 202                                   && (JFLOAT_TYPE_P ((TYPE))            \
 203                                       || JINTEGRAL_TYPE_P ((TYPE))))
 204 #define JPRIMITIVE_TYPE_P(TYPE)  ((TYPE)                                  \
 205                                   && (JNUMERIC_TYPE_P ((TYPE))            \
 206                                   || TREE_CODE ((TYPE)) == BOOLEAN_TYPE))
 207
 208 #define JBSC_TYPE_P(TYPE) ((TYPE) && (((TYPE) == byte_type_node)        \
 209                                       || ((TYPE) == short_type_node)    \
 210                                       || ((TYPE) == char_type_node)))
 211
 212 /* Not defined in the LRM */
 213 #define JSTRING_TYPE_P(TYPE) ((TYPE)                                       \
 214                               && ((TYPE) == string_type_node ||            \
 215                                   (TREE_CODE (TYPE) == POINTER_TYPE &&     \
 216                                    TREE_TYPE (TYPE) == string_type_node)))
 217 #define JSTRING_P(NODE) ((NODE)                                         \
 218                          && (TREE_CODE (NODE) == STRING_CST             \
 219                              || IS_CRAFTED_STRING_BUFFER_P (NODE)       \
 220                              || JSTRING_TYPE_P (TREE_TYPE (NODE))))
 221
 222 #define JREFERENCE_TYPE_P(TYPE) ((TYPE)                                       \
 223                                  && (TREE_CODE (TYPE) == RECORD_TYPE          \
 224                                      || (TREE_CODE (TYPE) == POINTER_TYPE     \
 225                                          &&  TREE_CODE (TREE_TYPE (TYPE)) ==  \
 226                                          RECORD_TYPE)))
 227 #define JNULLP_TYPE_P(TYPE) ((TYPE) && (TREE_CODE (TYPE) == POINTER_TYPE) \
 228                              && (TYPE) == TREE_TYPE (null_pointer_node))
 229
 230 /* Other predicates */
 231 #define JDECL_P(NODE) (NODE && (TREE_CODE (NODE) == PARM_DECL           \
 232                                 || TREE_CODE (NODE) == VAR_DECL         \
 233                                 || TREE_CODE (NODE) == FIELD_DECL))
 234
 235 #define TYPE_INTERFACE_P(TYPE)                                  \
 236   (CLASS_P (TYPE) && CLASS_INTERFACE (TYPE_NAME (TYPE)))
 237
 238 #define TYPE_CLASS_P(TYPE) (CLASS_P (TYPE)                              \
 239                             && !CLASS_INTERFACE (TYPE_NAME (TYPE)))
 240
 241 /* Identifier business related to 1.1 language extensions.  */
 242
 243 #define IDENTIFIER_INNER_CLASS_OUTER_FIELD_ACCESS(NODE) \
 244   (TREE_CODE (NODE) == IDENTIFIER_NODE &&               \
 245    IDENTIFIER_LENGTH (NODE) >= 8 &&                     \
 246    IDENTIFIER_POINTER (NODE)[7] != '0')
 247
 248 /* Build the string val$<O> and store it into N. The is used to
 249    construct the name of inner class hidden fields used to alias outer
 250    scope local variables.  */
 251 #define MANGLE_OUTER_LOCAL_VARIABLE_NAME(N, O)                          \
 252   {                                                                     \
 253     char *mangled_name;                                                 \
 254     obstack_grow (&temporary_obstack, "val$", 4);                       \
 255     obstack_grow (&temporary_obstack,                                   \
 256                   IDENTIFIER_POINTER ((O)), IDENTIFIER_LENGTH ((O)));   \
 257     obstack_1grow (&temporary_obstack, '\0');                           \
 258     mangled_name = obstack_finish (&temporary_obstack);                 \
 259     (N) = get_identifier (mangled_name);                                \
 260     obstack_free (&temporary_obstack, mangled_name);                    \
 261   }
 262
 263 /* Build the string parm$<O> and store in into the identifier N. This
 264    is used to construct the name of hidden parameters used to
 265    initialize outer scope aliases.  */
 266 #define MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_ID(N, O)                \
 267   {                                                                     \
 268     char *mangled_name;                                                 \
 269     obstack_grow (&temporary_obstack, "parm$", 5);                      \
 270     obstack_grow (&temporary_obstack,                                   \
 271                   IDENTIFIER_POINTER ((O)), IDENTIFIER_LENGTH ((O)));   \
 272     obstack_1grow (&temporary_obstack, '\0');                           \
 273     mangled_name = obstack_finish (&temporary_obstack);                 \
 274     (N) = get_identifier (mangled_name);                                \
 275     obstack_free (&temporary_obstack, mangled_name);                    \
 276   }
 277
 278 #define MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR(N, S)       \
 279   {                                                             \
 280     char *mangled_name;                                                 \
 281     obstack_grow (&temporary_obstack, "parm$", 5);              \
 282     obstack_grow (&temporary_obstack, (S), strlen ((S)));       \
 283     obstack_1grow (&temporary_obstack, '\0');                   \
 284     mangled_name = obstack_finish (&temporary_obstack);                 \
 285     (N) = get_identifier (mangled_name);                                \
 286     obstack_free (&temporary_obstack, mangled_name);                    \
 287   }
 288
 289 /* Skip THIS and artificial parameters found in function decl M and
 290    assign the result to C. We don't do that for $finit$, since it's
 291    knowingly called with artificial parms.  */
 292 #define SKIP_THIS_AND_ARTIFICIAL_PARMS(C,M)                     \
 293   {                                                             \
 294     int i;                                                      \
 295     (C) = TYPE_ARG_TYPES (TREE_TYPE ((M)));                     \
 296     if (!METHOD_STATIC ((M)))                                   \
 297       (C) = TREE_CHAIN (C);                                     \
 298     if (DECL_CONSTRUCTOR_P ((M))                                \
 299         && PURE_INNER_CLASS_TYPE_P (DECL_CONTEXT ((M))))        \
 300       (C) = TREE_CHAIN (C);                                     \
 301     if (!DECL_FINIT_P ((M)))                                    \
 302       for (i = DECL_FUNCTION_NAP ((M)); i; i--)                 \
 303        (C) = TREE_CHAIN (C);                                    \
 304   }
 305
 306 /* Mark final parameters in method M, by comparison of the argument
 307    list L. This macro is used to set the flag once the method has been
 308    build.  */
 309 #define MARK_FINAL_PARMS(M, L)                                          \
 310   {                                                                     \
 311     tree current = TYPE_ARG_TYPES (TREE_TYPE ((M)));                    \
 312     tree list = (L);                                                    \
 313     if (!METHOD_STATIC ((M)))                                           \
 314       current = TREE_CHAIN (current);                                   \
 315     for (; current !=  end_params_node;                                 \
 316          current = TREE_CHAIN (current), list = TREE_CHAIN (list))      \
 317       ARG_FINAL_P (current) = ARG_FINAL_P (list);                       \
 318     if (current != list)                                                \
 319       abort ();                                                         \
 320   }
 321
 322 /* Reset the ARG_FINAL_P that might have been set in method M args.  */
 323 #define UNMARK_FINAL_PARMS(M)                                           \
 324   {                                                                     \
 325     tree current;                                                       \
 326     for (current = TYPE_ARG_TYPES (TREE_TYPE ((M)));                    \
 327          current != end_params_node; current = TREE_CHAIN (current))    \
 328       ARG_FINAL_P (current) = 0;                                        \
 329   }
 330
 331 /* Reverse a crafted parameter list as required.  */
 332 #define CRAFTED_PARAM_LIST_FIXUP(P)             \
 333   {                                             \
 334     if ((P))                                    \
 335       {                                         \
 336         tree last = (P);                        \
 337         (P) = nreverse (P);                     \
 338         TREE_CHAIN (last) = end_params_node;    \
 339       }                                         \
 340     else                                        \
 341       (P) = end_params_node;                    \
 342   }
 343
 344 /* Modes governing the creation of a alias initializer parameter
 345    lists. AIPL stands for Alias Initializer Parameter List.  */
 346 enum {
 347   AIPL_FUNCTION_CREATION,         /* Suitable for artificial method creation */
 348   AIPL_FUNCTION_DECLARATION,      /* Suitable for declared methods */
 349   AIPL_FUNCTION_CTOR_INVOCATION,  /* Invocation of constructors */
 350   AIPL_FUNCTION_FINIT_INVOCATION  /* Invocation of $finit$ */
 351 };
 352
 353 /* Standard error messages */
 354 #define ERROR_CANT_CONVERT_TO_BOOLEAN(OPERATOR, NODE, TYPE)             \
 355   parse_error_context ((OPERATOR),                                      \
 356     "Incompatible type for %qs. Can't convert %qs to boolean",  \
 357     operator_string ((NODE)), lang_printable_name ((TYPE),0))
 358
 359 #define ERROR_CANT_CONVERT_TO_NUMERIC(OPERATOR, NODE, TYPE)             \
 360   parse_error_context ((OPERATOR),                                      \
 361       "Incompatible type for %qs. Can't convert %qs to numeric type",   \
 362       operator_string ((NODE)), lang_printable_name ((TYPE), 0))
 363
 364 #define ERROR_CAST_NEEDED_TO_INTEGRAL(OPERATOR, NODE, TYPE)             \
 365 do {                                                                    \
 366   tree _operator = (OPERATOR), _node = (NODE), _type = (TYPE);          \
 367   if (JPRIMITIVE_TYPE_P (_type))                                        \
 368     parse_error_context (_operator,                                     \
 369 "Incompatible type for %qs. Explicit cast needed to convert %qs to integral",\
 370                          operator_string(_node),                        \
 371                          lang_printable_name (_type, 0));               \
 372   else                                                                  \
 373     parse_error_context (_operator,                                     \
 374       "Incompatible type for %qs. Can't convert %qs to integral",       \
 375                          operator_string(_node),                        \
 376                          lang_printable_name (_type, 0));               \
 377 } while (0)
 378
 379 #define ERROR_VARIABLE_NOT_INITIALIZED(WFL, V)                  \
 380   parse_error_context                                           \
 381     ((WFL), "Variable %qs may not have been initialized",       \
 382      IDENTIFIER_POINTER (V))
 383
 384 /* Definition for loop handling. This is Java's own definition of a
 385    loop body. See parse.y for documentation. It's valid once you hold
 386    a loop's body (LOOP_EXPR_BODY) */
 387
 388 /* The loop main block is the one hold the condition and the loop body */
 389 #define LOOP_EXPR_BODY_MAIN_BLOCK(NODE) TREE_OPERAND (NODE, 0)
 390 /* And then there is the loop update block */
 391 #define LOOP_EXPR_BODY_UPDATE_BLOCK(NODE) TREE_OPERAND (NODE, 1)
 392
 393 /* Inside the loop main block, there is the loop condition and the
 394    loop body. They may be reversed if the loop being described is a
 395    do-while loop. NOTE: if you use a WFL around the EXIT_EXPR so you
 396    can issue debug info for it, the EXIT_EXPR will be one operand
 397    further. */
 398 #define LOOP_EXPR_BODY_CONDITION_EXPR(NODE, R)                  \
 399   TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 1 : 0))
 400
 401 /* Here is the labeled block the loop real body is encapsulated in */
 402 #define LOOP_EXPR_BODY_LABELED_BODY(NODE, R)                    \
 403   TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 0 : 1))
 404 /* And here is the loop's real body */
 405 #define LOOP_EXPR_BODY_BODY_EXPR(NODE, R)                       \
 406   LABELED_BLOCK_BODY (LOOP_EXPR_BODY_LABELED_BODY(NODE, R))
 407
 408 #define PUSH_LABELED_BLOCK(B)                           \
 409   {                                                     \
 410     TREE_CHAIN (B) = ctxp->current_labeled_block;       \
 411     ctxp->current_labeled_block = (B);                  \
 412   }
 413 #define POP_LABELED_BLOCK()                                             \
 414   ctxp->current_labeled_block = TREE_CHAIN (ctxp->current_labeled_block)
 415
 416 #define PUSH_LOOP(L)                            \
 417   {                                             \
 418     TREE_CHAIN (L) = ctxp->current_loop;        \
 419     ctxp->current_loop = (L);                   \
 420   }
 421 #define POP_LOOP() ctxp->current_loop = TREE_CHAIN (ctxp->current_loop)
 422
 423 #define PUSH_EXCEPTIONS(E)                                      \
 424   currently_caught_type_list =                                  \
 425     tree_cons (NULL_TREE, (E), currently_caught_type_list);
 426
 427 #define POP_EXCEPTIONS()                                                \
 428   currently_caught_type_list = TREE_CHAIN (currently_caught_type_list)
 429
 430 /* Check that we're inside a try block.  */
 431 #define IN_TRY_BLOCK_P()                                \
 432   (currently_caught_type_list                           \
 433    && ((TREE_VALUE (currently_caught_type_list) !=      \
 434         DECL_FUNCTION_THROWS (current_function_decl))   \
 435        || TREE_CHAIN (currently_caught_type_list)))
 436
 437 /* Check that we have exceptions in E.  */
 438 #define EXCEPTIONS_P(E) ((E) ? TREE_VALUE (E) : NULL_TREE)
 439
 440 /* Anonymous array access */
 441 #define ANONYMOUS_ARRAY_BASE_TYPE(N)   TREE_OPERAND ((N), 0)
 442 #define ANONYMOUS_ARRAY_DIMS_SIG(N)    TREE_OPERAND ((N), 1)
 443 #define ANONYMOUS_ARRAY_INITIALIZER(N) TREE_OPERAND ((N), 2)
 444
 445 /* Invocation modes, as returned by invocation_mode (). */
 446 enum {
 447   INVOKE_STATIC,
 448   INVOKE_NONVIRTUAL,
 449   INVOKE_SUPER,
 450   INVOKE_INTERFACE,
 451   INVOKE_VIRTUAL
 452 };
 453
 454 /* Unresolved type identifiers handling. When we process the source
 455    code, we blindly accept an unknown type identifier and try to
 456    resolve it later. When an unknown type identifier is encountered
 457    and used, we record in a struct jdep element what the incomplete
 458    type is and what it should patch. Later, java_complete_class will
 459    process all classes known to have unresolved type
 460    dependencies. Within each of these classes, this routine will
 461    process unresolved type dependencies (JDEP_TO_RESOLVE), patch what
 462    needs to be patched in the dependent tree node (JDEP_GET_PATCH,
 463    JDEP_APPLY_PATCH) and perform other actions dictated by the context
 464    of the patch (JDEP_KIND). The ideas are: we patch only what needs
 465    to be patched, and with java_complete_class called at the right
 466    time, we will start processing incomplete function bodies tree
 467    nodes with everything external to function's bodies already
 468    completed, it makes things much simpler. */
 469
 470 enum jdep_code {
 471   JDEP_NO_PATCH,                /* Must be first */
 472   JDEP_SUPER,                   /* Patch the type of one type
 473                                    supertype. Requires some check
 474                                    before it's done */
 475   JDEP_FIELD,                   /* Patch the type of a class field */
 476
 477   /* JDEP_{METHOD,METHOD_RETURN,METHOD_END} to be kept in order */
 478   JDEP_METHOD,                  /* Mark the beginning of the patching
 479                                    of a method declaration, including
 480                                    it's arguments */
 481   JDEP_METHOD_RETURN,           /* Mark the beginning of the patching
 482                                    of a method declaration. Arguments
 483                                    aren't patched, only the returned
 484                                    type is */
 485   JDEP_METHOD_END,              /* Mark the end of the patching of a
 486                                    method declaration. It indicates
 487                                    that it's time to compute and
 488                                    install a new signature */
 489
 490   JDEP_INTERFACE,               /* Patch the type of a Class/interface
 491                                    extension */
 492   JDEP_VARIABLE,                /* Patch the type of a variable declaration */
 493   JDEP_PARM,                    /* Patch the type of a parm declaration */
 494   JDEP_TYPE,                    /* Patch a random tree node type,
 495                                    without the need for any specific
 496                                    actions */
 497   JDEP_EXCEPTION,               /* Patch exceptions specified by `throws' */
 498   JDEP_ANONYMOUS                /* Patch anonymous classes
 499                                    (implementation or extension.) */
 500
 501 };
 502
 503 typedef struct _jdep {
 504   ENUM_BITFIELD(jdep_code) kind : 8; /* Type of patch */
 505
 506   unsigned int  flag0 : 1;      /* Some flags */
 507   tree decl;                    /* Tied decl/or WFL */
 508   tree solv;                    /* What to solve */
 509   tree wfl;                     /* Where thing to resolve where found */
 510   tree misc;                    /* Miscellaneous info (optional). */
 511   tree enclosing;               /* The enclosing (current) class */
 512   tree *patch;                  /* Address of a location to patch */
 513   struct _jdep *next;           /* Linked list */
 514 } jdep;
 515
 516
 517 #define JDEP_DECL(J)          ((J)->decl)
 518 #define JDEP_DECL_WFL(J)      ((J)->decl)
 519 #define JDEP_KIND(J)          ((J)->kind)
 520 #define JDEP_WFL(J)           ((J)->wfl)
 521 #define JDEP_MISC(J)          ((J)->misc)
 522 #define JDEP_ENCLOSING(J)     ((J)->enclosing)
 523 #define JDEP_CLASS(J)         ((J)->class)
 524 #define JDEP_APPLY_PATCH(J,P) (*(J)->patch = (P))
 525 #define JDEP_GET_PATCH(J)     ((J)->patch)
 526 #define JDEP_CHAIN(J)         ((J)->next)
 527 #define JDEP_TO_RESOLVE(J)    ((J)->solv)
 528 #define JDEP_RESOLVED_DECL(J) ((J)->solv)
 529 #define JDEP_RESOLVED(J, D)   ((J)->solv = D)
 530 #define JDEP_RESOLVED_P(J)    \
 531         (!(J)->solv || TREE_CODE ((J)->solv) != POINTER_TYPE)
 532
 533 struct jdeplist_s {
 534   jdep *first;
 535   jdep *last;
 536   struct jdeplist_s *next;
 537 };
 538 typedef struct jdeplist_s jdeplist;
 539
 540 #define CLASSD_FIRST(CD) ((CD)->first)
 541 #define CLASSD_LAST(CD)  ((CD)->last)
 542 #define CLASSD_CHAIN(CD) ((CD)->next)
 543
 544 #define JDEP_INSERT(L,J)                        \
 545   {                                             \
 546     if (!(L)->first)                            \
 547       (L)->last = (L)->first = (J);             \
 548     else                                        \
 549       {                                         \
 550         JDEP_CHAIN ((L)->last) = (J);           \
 551         (L)->last = (J);                        \
 552       }                                         \
 553   }
 554
 555 /* if TYPE can't be resolved, obtain something suitable for its
 556    resolution (TYPE is saved in SAVE before being changed). and set
 557    CHAIN to 1. Otherwise, type is set to something usable. CHAIN is
 558    usually used to determine that a new DEP must be installed on TYPE.
 559    Note that when compiling java.lang.Object, references to Object are
 560    java.lang.Object.  */
 561 #define SET_TYPE_FOR_RESOLUTION(TYPE, SAVE, CHAIN)                      \
 562   {                                                                     \
 563     tree _returned_type;                                                \
 564     (CHAIN) = 0;                                                        \
 565     if (TREE_TYPE (GET_CPC ()) == object_type_node                      \
 566         && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION                  \
 567         && EXPR_WFL_NODE (TYPE) == unqualified_object_id_node)          \
 568       (TYPE) = object_type_node;                                        \
 569     else                                                                \
 570       {                                                                 \
 571         if (unresolved_type_p (type, &_returned_type))                  \
 572           {                                                             \
 573             if (_returned_type)                                         \
 574               (TYPE) = _returned_type;                                  \
 575             else                                                        \
 576               {                                                         \
 577                 tree _type;                                             \
 578                 WFL_STRIP_BRACKET (_type, TYPE);                        \
 579                 (SAVE) = (_type);                                       \
 580                 (TYPE) = obtain_incomplete_type (TYPE);                 \
 581                 CHAIN = 1;                                              \
 582               }                                                         \
 583           }                                                             \
 584       }                                                                 \
 585   }
 586
 587 #define WFL_STRIP_BRACKET(TARGET, TYPE)                                   \
 588 {                                                                         \
 589   tree __type = (TYPE);                                                   \
 590   if (TYPE && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION)                \
 591     {                                                                     \
 592       tree _node;                                                         \
 593       if (build_type_name_from_array_name (EXPR_WFL_NODE (TYPE), &_node)) \
 594         {                                                                 \
 595           tree _new = copy_node (TYPE);                                   \
 596           EXPR_WFL_NODE (_new) = _node;                                   \
 597           __type = _new;                                                  \
 598         }                                                                 \
 599     }                                                                     \
 600   (TARGET) = __type;                                                      \
 601 }
 602
 603 /* If NAME contains one or more trailing []s, NAMELEN will be the
 604    adjusted to be the index of the last non bracket character in
 605    NAME. ARRAY_DIMS will contain the number of []s found.  */
 606
 607 #define STRING_STRIP_BRACKETS(NAME, NAMELEN, ARRAY_DIMS)                  \
 608 {                                                                         \
 609   ARRAY_DIMS = 0;                                                         \
 610   while (NAMELEN >= 2 && (NAME)[NAMELEN - 1] == ']')                      \
 611     {                                                                     \
 612       NAMELEN -= 2;                                                       \
 613       (ARRAY_DIMS)++;                                                     \
 614     }                                                                     \
 615 }
 616
 617 /* Promote a type if it won't be registered as a patch */
 618 #define PROMOTE_RECORD_IF_COMPLETE(TYPE, IS_INCOMPLETE)         \
 619   {                                                             \
 620     if (!(IS_INCOMPLETE) && TREE_CODE (TYPE) == RECORD_TYPE)    \
 621       (TYPE) = promote_type (TYPE);                             \
 622   }
 623
 624 /* Insert a DECL in the current block */
 625 #define BLOCK_CHAIN_DECL(NODE)                                              \
 626   {                                                                         \
 627     TREE_CHAIN ((NODE)) =                                                   \
 628       BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl));         \
 629     BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)) = (NODE);  \
 630   }
 631
 632 /* Return the current block, either found in the body of the currently
 633    declared function or in the current static block being defined. */
 634 #define GET_CURRENT_BLOCK(F) ((F) ? DECL_FUNCTION_BODY ((F)) :  \
 635                              current_static_block)
 636
 637 #ifndef USE_MAPPED_LOCATION
 638 /* Retrieve line/column from a WFL. */
 639 #define EXPR_WFL_GET_LINECOL(V,LINE,COL)        \
 640   {                                             \
 641      (LINE) = (V) >> 12;                        \
 642      (COL) = (V) & 0xfff;                       \
 643    }
 644 #endif
 645
 646 #define EXPR_WFL_QUALIFICATION(WFL) TREE_OPERAND ((WFL), 1)
 647 #define QUAL_WFL(NODE) TREE_PURPOSE (NODE)
 648 #define QUAL_RESOLUTION(NODE) TREE_VALUE (NODE)
 649 #define QUAL_DECL_TYPE(NODE) GET_SKIP_TYPE (NODE)
 650
 651 #define GET_SKIP_TYPE(NODE)                             \
 652   (TREE_CODE (TREE_TYPE (NODE)) == POINTER_TYPE ?       \
 653    TREE_TYPE (TREE_TYPE (NODE)): TREE_TYPE (NODE))
 654
 655 /* Handy macros for the walk operation */
 656 #define COMPLETE_CHECK_OP(NODE, N)                      \
 657 {                                                       \
 658   TREE_OPERAND ((NODE), (N)) =                          \
 659     java_complete_tree (TREE_OPERAND ((NODE), (N)));    \
 660   if (TREE_OPERAND ((NODE), (N)) == error_mark_node)    \
 661     return error_mark_node;                             \
 662 }
 663 #define COMPLETE_CHECK_OP_0(NODE) COMPLETE_CHECK_OP(NODE, 0)
 664 #define COMPLETE_CHECK_OP_1(NODE) COMPLETE_CHECK_OP(NODE, 1)
 665 #define COMPLETE_CHECK_OP_2(NODE) COMPLETE_CHECK_OP(NODE, 2)
 666
 667 /* Building invocations: append(ARG) and StringBuffer(ARG) */
 668 #define BUILD_APPEND(ARG)                                                     \
 669   ((JSTRING_TYPE_P (TREE_TYPE (ARG)) || JPRIMITIVE_TYPE_P (TREE_TYPE (ARG)))  \
 670    ? build_method_invocation (wfl_append,                                     \
 671                               ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE)\
 672    : build_method_invocation (wfl_append,                                     \
 673                               ARG ? build_tree_list (NULL,                    \
 674                                                      build1 (CONVERT_EXPR,    \
 675                                                              object_type_node,\
 676                                                              (ARG)))          \
 677                               : NULL_TREE))
 678 #define BUILD_STRING_BUFFER(ARG)                                              \
 679   build_new_invocation (wfl_string_buffer,                                    \
 680                         (ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE))
 681
 682 #define BUILD_THROW(WHERE, WHAT)                                \
 683   {                                                             \
 684     (WHERE) =                                                   \
 685       build3 (CALL_EXPR, void_type_node,                        \
 686               build_address_of (throw_node),                    \
 687               build_tree_list (NULL_TREE, (WHAT)), NULL_TREE);  \
 688     TREE_SIDE_EFFECTS ((WHERE)) = 1;                            \
 689   }
 690
 691 /* Set wfl_operator for the most accurate error location */
 692 #ifdef USE_MAPPED_LOCATION
 693 #define SET_WFL_OPERATOR(WHICH, NODE, WFL)              \
 694   SET_EXPR_LOCATION (WHICH,                             \
 695     (TREE_CODE (WFL) == EXPR_WITH_FILE_LOCATION ?       \
 696      EXPR_LOCATION (WFL) : EXPR_LOCATION (NODE)))
 697 #else
 698 #define SET_WFL_OPERATOR(WHICH, NODE, WFL)              \
 699   EXPR_WFL_LINECOL (WHICH) =                            \
 700     (TREE_CODE (WFL) == EXPR_WITH_FILE_LOCATION ?       \
 701      EXPR_WFL_LINECOL (WFL) : EXPR_WFL_LINECOL (NODE))
 702 #endif
 703
 704 #define PATCH_METHOD_RETURN_ERROR()             \
 705   {                                             \
 706     if (ret_decl)                               \
 707       *ret_decl = NULL_TREE;                    \
 708     return error_mark_node;                     \
 709   }
 710
 711 /* Convenient macro to check. Assumes that CLASS is a CLASS_DECL.  */
 712 #define CHECK_METHODS(CLASS)                    \
 713   {                                             \
 714     if (CLASS_INTERFACE ((CLASS)))              \
 715       java_check_abstract_methods ((CLASS));    \
 716     else                                        \
 717       java_check_regular_methods ((CLASS));     \
 718   }
 719
 720 #define CLEAR_DEPRECATED  ctxp->deprecated = 0
 721
 722 #define CHECK_DEPRECATED_NO_RESET(DECL)         \
 723   {                                             \
 724     if (ctxp->deprecated)                       \
 725       DECL_DEPRECATED (DECL) = 1;               \
 726   }
 727
 728 /* Using and reseting the @deprecated tag flag */
 729 #define CHECK_DEPRECATED(DECL)                  \
 730   {                                             \
 731     if (ctxp->deprecated)                       \
 732       DECL_DEPRECATED (DECL) = 1;               \
 733     ctxp->deprecated = 0;                       \
 734   }
 735
 736 /* Register an import */
 737 #define REGISTER_IMPORT(WHOLE, NAME)                                    \
 738 {                                                                       \
 739   IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P ((NAME)) = 1;                     \
 740   ctxp->import_list = tree_cons ((WHOLE), (NAME), ctxp->import_list);   \
 741 }
 742
 743 /* Macro to access the osb (opening square bracket) count */
 744 #define CURRENT_OSB(C) (C)->osb_number [(C)->osb_depth]
 745
 746 /* Parser context data structure. */
 747 struct parser_ctxt GTY(()) {
 748   const char *filename;              /* Current filename */
 749   location_t file_start_location;
 750   location_t save_location;
 751   struct parser_ctxt *next;
 752
 753   java_lexer * GTY((skip)) lexer; /* Current lexer state */
 754   char marker_begining;              /* Marker. Should be a sub-struct */
 755   int ccb_indent;                    /* Number of unmatched { seen. */
 756   /* The next two fields are only source_location if USE_MAPPED_LOCATION.
 757      Otherwise, they are integer line number, but we can't have #ifdefs
 758      in GTY structures. */
 759   source_location first_ccb_indent1; /* First { at ident level 1 */
 760   source_location last_ccb_indent1;  /* Last } at ident level 1 */
 761   int parser_ccb_indent;             /* Keep track of {} indent, parser */
 762   int osb_depth;                     /* Current depth of [ in an expression */
 763   int osb_limit;                     /* Limit of this depth */
 764   int * GTY ((skip)) osb_number; /* Keep track of ['s */
 765   char marker_end;                   /* End marker. Should be a sub-struct */
 766
 767   /* The flags section */
 768
 769   /* Indicates a context used for saving the parser status. The
 770      context must be popped when the status is restored. */
 771   unsigned saved_data_ctx:1;
 772   /* Indicates that a context already contains saved data and that the
 773      next save operation will require a new context to be created. */
 774   unsigned saved_data:1;
 775   /* Report error when true */
 776   unsigned java_error_flag:1;
 777   /* @deprecated tag seen */
 778   unsigned deprecated:1;
 779   /* Flag to report certain errors (fix this documentation. FIXME) */
 780   unsigned class_err:1;
 781
 782   /* This section is used only if we compile jc1 */
 783   tree modifier_ctx [12];           /* WFL of modifiers */
 784   tree class_type;                  /* Current class */
 785   tree function_decl;               /* Current function decl, save/restore */
 786
 787   int prevent_ese;                  /* Prevent expression statement error */
 788
 789   int formal_parameter_number;      /* Number of parameters found */
 790   int interface_number;             /* # itfs declared to extend an itf def */
 791
 792   tree package;                     /* Defined package ID */
 793
 794   /* These two lists won't survive file traversal */
 795   tree  class_list;                 /* List of classes in a CU */
 796   jdeplist * GTY((skip)) classd_list; /* Classe dependencies in a CU */
 797
 798   tree  current_parsed_class;       /* Class currently parsed */
 799   tree  current_parsed_class_un;    /* Curr. parsed class unqualified name */
 800
 801   tree non_static_initialized;      /* List of non static initialized fields */
 802   tree static_initialized;          /* List of static non final initialized */
 803   tree instance_initializers;       /* List of instance initializers stmts */
 804
 805   tree import_list;                 /* List of import */
 806   tree import_demand_list;          /* List of import on demand */
 807
 808   tree current_loop;                /* List of the currently nested
 809                                        loops/switches */
 810   tree current_labeled_block;       /* List of currently nested
 811                                        labeled blocks. */
 812
 813   int pending_block;                /* Pending block to close */
 814
 815   int explicit_constructor_p;       /* >0 when processing an explicit
 816                                        constructor. This flag is used to trap
 817                                        illegal argument usage during an
 818                                        explicit constructor invocation. */
 819 };
 820
 821 /* A set of macros to push/pop/access the currently parsed class.  */
 822 #define GET_CPC_LIST()     ctxp->current_parsed_class
 823
 824 /* Currently class being parsed is an inner class if an enclosing
 825    class has been already pushed. This truth value is only valid prior
 826    an inner class is pushed. After, use FIXME. */
 827 #define CPC_INNER_P() GET_CPC_LIST ()
 828
 829 /* The TYPE_DECL node of the class currently being parsed.  */
 830 #define GET_CPC() TREE_VALUE (GET_CPC_LIST ())
 831
 832 /* Get the currently parsed class unqualified IDENTIFIER_NODE.  */
 833 #define GET_CPC_UN() TREE_PURPOSE (GET_CPC_LIST ())
 834
 835 /* Get a parsed class unqualified IDENTIFIER_NODE from its CPC node.  */
 836 #define GET_CPC_UN_NODE(N) TREE_PURPOSE (N)
 837
 838 /* Get the currently parsed class DECL_TYPE from its CPC node.  */
 839 #define GET_CPC_DECL_NODE(N) TREE_VALUE (N)
 840
 841 /* The currently parsed enclosing currently parsed TREE_LIST node.  */
 842 #define GET_ENCLOSING_CPC() TREE_CHAIN (GET_CPC_LIST ())
 843
 844 /* Get the next enclosing context.  */
 845 #define GET_NEXT_ENCLOSING_CPC(C) TREE_CHAIN (C)
 846
 847 /* The DECL_TYPE node of the enclosing currently parsed
 848    class. NULL_TREE if the currently parsed class isn't an inner
 849    class.  */
 850 #define GET_ENCLOSING_CPC_CONTEXT() (GET_ENCLOSING_CPC () ?                   \
 851                                      TREE_VALUE (GET_ENCLOSING_CPC ()) :      \
 852                                      NULL_TREE)
 853
 854 /* Make sure that innerclass T sits in an appropriate enclosing
 855    context.  */
 856 #define INNER_ENCLOSING_SCOPE_CHECK(T)                                        \
 857   (INNER_CLASS_TYPE_P ((T)) && !ANONYMOUS_CLASS_P ((T))                       \
 858    && ((current_this                                                          \
 859         /* We have a this and it's not the right one */                       \
 860         && (DECL_CONTEXT (TYPE_NAME ((T)))                                    \
 861             != TYPE_NAME (TREE_TYPE (TREE_TYPE (current_this))))              \
 862         && !inherits_from_p (TREE_TYPE (TREE_TYPE (current_this)),            \
 863                              TREE_TYPE (DECL_CONTEXT (TYPE_NAME (T))))        \
 864         && !common_enclosing_instance_p (TREE_TYPE (TREE_TYPE (current_this)),\
 865                                         (T))                                  \
 866         && INNER_CLASS_TYPE_P (TREE_TYPE (TREE_TYPE (current_this)))          \
 867         && !inherits_from_p                                                   \
 868               (TREE_TYPE (DECL_CONTEXT                                        \
 869                           (TYPE_NAME (TREE_TYPE (TREE_TYPE (current_this))))),\
 870                TREE_TYPE (DECL_CONTEXT (TYPE_NAME (T)))))                     \
 871        /* We don't have a this, which is OK if the current function is        \
 872           static. */                                                          \
 873        || (!current_this                                                      \
 874            && current_function_decl                                           \
 875            && ! METHOD_STATIC (current_function_decl))))
 876
 877 /* Push macro. First argument to PUSH_CPC is a DECL_TYPE, second
 878    argument is the unqualified currently parsed class name.  */
 879 #define PUSH_CPC(C,R) {                                         \
 880                         ctxp->current_parsed_class =            \
 881                         tree_cons ((R), (C), GET_CPC_LIST ());  \
 882                       }
 883
 884 /* In case of an error, push an error.  */
 885 #define PUSH_ERROR() PUSH_CPC (error_mark_node, error_mark_node)
 886
 887 /* Pop macro. Before we pop, we link the current inner class decl (if any)
 888    to its enclosing class.  */
 889 #define POP_CPC() {                                     \
 890                     link_nested_class_to_enclosing ();  \
 891                     ctxp->current_parsed_class =        \
 892                       TREE_CHAIN (GET_CPC_LIST ());     \
 893                   }
 894
 895 #define DEBUG_CPC()                                             \
 896   do                                                            \
 897     {                                                           \
 898       tree tmp =  ctxp->current_parsed_class;                   \
 899       while (tmp)                                               \
 900         {                                                       \
 901           fprintf (stderr, "%s ",                               \
 902                    IDENTIFIER_POINTER (TREE_PURPOSE (tmp)));    \
 903           tmp = TREE_CHAIN (tmp);                               \
 904         }                                                       \
 905     }                                                           \
 906   while (0);
 907
 908 /* Access to the various initializer statement lists */
 909 #define CPC_INITIALIZER_LIST(C)          ((C)->non_static_initialized)
 910 #define CPC_STATIC_INITIALIZER_LIST(C)   ((C)->static_initialized)
 911 #define CPC_INSTANCE_INITIALIZER_LIST(C) ((C)->instance_initializers)
 912
 913 /* Access to the various initializer statements */
 914 #define CPC_INITIALIZER_STMT(C) (TREE_PURPOSE (CPC_INITIALIZER_LIST (C)))
 915 #define CPC_STATIC_INITIALIZER_STMT(C) \
 916   (TREE_PURPOSE (CPC_STATIC_INITIALIZER_LIST (C)))
 917 #define CPC_INSTANCE_INITIALIZER_STMT(C) \
 918   (TREE_PURPOSE (CPC_INSTANCE_INITIALIZER_LIST (C)))
 919
 920 /* Set various initializer statements */
 921 #define SET_CPC_INITIALIZER_STMT(C,S)                   \
 922   if (CPC_INITIALIZER_LIST (C))                         \
 923     TREE_PURPOSE (CPC_INITIALIZER_LIST (C)) = (S);
 924 #define SET_CPC_STATIC_INITIALIZER_STMT(C,S)                    \
 925   if (CPC_STATIC_INITIALIZER_LIST (C))                          \
 926     TREE_PURPOSE (CPC_STATIC_INITIALIZER_LIST (C)) = (S);
 927 #define SET_CPC_INSTANCE_INITIALIZER_STMT(C,S)                  \
 928   if (CPC_INSTANCE_INITIALIZER_LIST(C))                         \
 929     TREE_PURPOSE (CPC_INSTANCE_INITIALIZER_LIST (C)) = (S);
 930
 931 /* This is used by the lexer to communicate with the parser.  It is
 932    set on an integer constant if the radix is NOT 10, so that the parser
 933    can correctly diagnose a numeric overflow.  */
 934 #define JAVA_NOT_RADIX10_FLAG(NODE) TREE_LANG_FLAG_0(NODE)
 935
 936 #ifndef JC1_LITE
 937 void java_complete_class (void);
 938 void java_check_circular_reference (void);
 939 void java_fix_constructors (void);
 940 void java_layout_classes (void);
 941 void java_reorder_fields (void);
 942 tree java_method_add_stmt (tree, tree);
 943 int java_report_errors (void);
 944 extern tree do_resolve_class (tree, tree, tree, tree, tree);
 945 #endif
 946 char *java_get_line_col (const char *, int, int);
 947 extern void reset_report (void);
 948
 949 /* Always in use, no matter what you compile */
 950 void java_push_parser_context (void);
 951 void java_pop_parser_context (int);
 952 void java_init_lex (FILE *, const char *);
 953 extern void java_parser_context_save_global (void);
 954 extern void java_parser_context_restore_global (void);
 955 int yyparse (void);
 956 extern int java_parse (void);
 957 extern void yyerror (const char *)
 958 #ifdef JC1_LITE
 959 ATTRIBUTE_NORETURN
 960 #endif
 961 ;
 962 extern void java_expand_classes (void);
 963 extern void java_finish_classes (void);
 964
 965 extern GTY(()) struct parser_ctxt *ctxp;
 966 extern GTY(()) struct parser_ctxt *ctxp_for_generation;
 967 extern GTY(()) struct parser_ctxt *ctxp_for_generation_last;
 968
 969 #endif /* ! GCC_JAVA_PARSE_H */