gcc/java/java-tree.h

   1 /* Definitions for parsing and type checking for the GNU compiler for
   2    the Java(TM) language.
   3    Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
   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 /* Hacked by Per Bothner <bothner@cygnus.com> February 1996. */
  27
  28 #include "hash.h"
  29
  30 /* Java language-specific tree codes.  */
  31 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
  32 enum java_tree_code {
  33   __DUMMY = LAST_AND_UNUSED_TREE_CODE,
  34 #include "java-tree.def"
  35   LAST_JAVA_TREE_CODE
  36 };
  37 #undef DEFTREECODE
  38
  39 struct JCF;
  40
  41 /* Usage of TREE_LANG_FLAG_?:
  42    0: IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (in IDENTIFIER_NODE)
  43       RESOLVE_EXPRESSION_NAME_P (in EXPR_WITH_FILE_LOCATION)
  44       FOR_LOOP_P (in LOOP_EXPR)
  45       ANONYMOUS_CLASS_P (in RECORD_TYPE)
  46       ARG_FINAL_P (in TREE_LIST)
  47    1: CLASS_HAS_SUPER_FLAG (in TREE_VEC).
  48       IS_A_CLASSFILE_NAME (in IDENTIFIER_NODE)
  49       COMPOUND_ASSIGN_P (in EXPR (binop_*))
  50       LOCAL_CLASS_P (in RECORD_TYPE)
  51    2: RETURN_MAP_ADJUSTED (in TREE_VEC).
  52       QUALIFIED_P (in IDENTIFIER_NODE)
  53       PRIMARY_P (in EXPR_WITH_FILE_LOCATION)
  54       MODIFY_EXPR_FROM_INITIALIZATION_P (in MODIFY_EXPR)
  55    3: IS_AN_IMPORT_ON_DEMAND_P (in IDENTIFIER_NODE)
  56       RESOLVE_PACKAGE_NAME_P (in EXPR_WITH_FILE_LOCATION)
  57       SWITCH_HAS_DEFAULT (in SWITCH_EXPR)
  58    4: IS_A_COMMAND_LINE_FILENAME_P (in IDENTIFIER_NODE)
  59       RESOLVE_TYPE_NAME_P (in EXPR_WITH_FILE_LOCATION)
  60       CALL_USING_SUPER (in CALL_EXPR)
  61    5: HAS_BEEN_ALREADY_PARSED_P (in IDENTIFIER_NODE)
  62       IS_BREAK_STMT_P (in EXPR_WITH_FILE_LOCATION)
  63       IS_CRAFTED_STRING_BUFFER_P (in CALL_EXPR)
  64       IS_INIT_CHECKED (in SAVE_EXPR)
  65    6: CAN_COMPLETE_NORMALLY (in statement nodes)
  66       OUTER_FIELD_ACCESS_IDENTIFIER_P (in IDENTIFIER_NODE)
  67
  68    Usage of TYPE_LANG_FLAG_?:
  69    0: CLASS_ACCESS0_GENERATED_P (in RECORD_TYPE)
  70    1: TYPE_ARRAY_P (in RECORD_TYPE).
  71    2: CLASS_LOADED_P (in RECORD_TYPE).
  72    3: CLASS_FROM_SOURCE_P (in RECORD_TYPE).
  73    4: CLASS_P (in RECORD_TYPE).
  74    5: CLASS_FROM_CURRENTLY_COMPILED_SOURCE_P (in RECORD_TYPE)
  75    6: CLASS_BEING_LAIDOUT (in RECORD_TYPE)
  76
  77    Usage of DECL_LANG_FLAG_?:
  78    0: METHOD_DEPRECATED (in FUNCTION_DECL).
  79       FIELD_DEPRECATED (in FIELD_DECL).
  80       CLASS_DEPRECATED (in TYPE_DECL).
  81    1: METHOD_PUBLIC (in FUNCTION_DECL).
  82       FIELD_PUBLIC (in FIELD_DECL).
  83       CLASS_PUBLIC (in TYPE_DECL).
  84    2: METHOD_STATIC (in FUNCTION_DECL).
  85       (But note that FIELD_STATIC uses TREE_STATIC!)
  86       CLASS_COMPLETE_P (in TYPE_DECL)
  87    3: METHOD_FINAL (in FUNCTION_DECL)
  88       FIELD_FINAL (in FIELD_DECL)
  89       CLASS_FINAL (in TYPE_DECL)
  90       LOCAL_FINAL (in VAR_DECL)
  91    4: METHOD_SYNCHRONIZED (in FUNCTION_DECL).
  92       LABEL_IN_SUBR (in LABEL_DECL)
  93       CLASS_INTERFACE (in TYPE_DECL)
  94       FIELD_VOLATILE (int FIELD_DECL)
  95    5: METHOD_ABSTRACT (in FUNCTION_DECL).
  96       LABEL_IS_SUBR_START (in LABEL_DECL)
  97       CLASS_ABSTRACT (in TYPE_DECL)
  98       FIELD_TRANSIENT (in FIELD_DECL)
  99    6: METHOD_TRANSIENT (in FUNCTION_DECL)
 100       LABEL_CHANGED (in LABEL_DECL)
 101       CLASS_SUPER (in TYPE_DECL, ACC_SUPER flag)
 102       FIELD_LOCAL_ALIAS (in FIELD_DECL)
 103    7: DECL_CONSTRUCTOR_P (in FUNCTION_DECL).
 104       CLASS_STATIC (in TYPE_DECL)
 105       FIELD_LOCAL_ALIAS_USED (in FIELD_DECL)
 106       FIELD_THISN (in FIELD_DECL)
 107 */
 108
 109 /* True if the class whose TYPE_BINFO this is has a superclass.
 110    (True of all classes except Object.) */
 111 #define CLASS_HAS_SUPER_FLAG(BINFO) TREE_LANG_FLAG_1(BINFO)
 112 #define CLASS_HAS_SUPER(TYPE) CLASS_HAS_SUPER_FLAG (TYPE_BINFO (TYPE))
 113
 114 /* Return the supertype of class TYPE, or NULL_TREE is it has none. */
 115 #define CLASSTYPE_SUPER(TYPE) (CLASS_HAS_SUPER (TYPE) ? \
 116   BINFO_TYPE (TREE_VEC_ELT (TYPE_BINFO_BASETYPES (TYPE), 0)) : NULL_TREE)
 117
 118 /* True if the class we are compiling is a .java source file;
 119    false if it is a .class bytecode file. */
 120 extern int compiling_from_source;
 121
 122 /* The class defined by the actual (main) file we are compiling. */
 123 extern tree main_class;
 124
 125 /* The class we are currently processing. */
 126 extern tree current_class;
 127
 128 /* List of all class DECLs seen so far.  */
 129 extern tree all_class_list;
 130
 131 /* Nonzero if we should make is_compiled_class always return 1 for
 132    appropriate classes that we're referencing.  */
 133
 134 extern int flag_assume_compiled;
 135
 136 extern int flag_emit_class_files;
 137
 138 /* When non zero, assume all native functions are implemented with
 139    JNI, not CNI.  */
 140
 141 extern int flag_jni;
 142
 143 /* When non zero, we emit xref strings. Values of the flag for xref
 144    backends are defined in xref.h.  */
 145
 146 extern int flag_emit_xref;
 147
 148 /* When doing xrefs, tell when not to fold.   */
 149 extern int do_not_fold;
 150
 151 /* Turned to 1 if -Wall was encountered. See lang.c for their meanings.  */
 152 extern int flag_wall;
 153 extern int flag_redundant;
 154 extern int flag_not_overriding;
 155 extern int flag_static_local_jdk1_1;
 156
 157 /* When non zero, call a library routine to do integer divisions. */
 158 extern int flag_use_divide_subroutine;
 159
 160 /* When non zero, generate code for the Boehm GC.  */
 161 extern int flag_use_boehm_gc;
 162
 163 /* When non zero, assume the runtime uses a hash table to map an
 164    object to its synchronization structure.  */
 165 extern int flag_hash_synchronization;
 166
 167 /* The Java .class file that provides main_class;  the main input file. */
 168 extern struct JCF *current_jcf;
 169
 170 typedef struct CPool constant_pool;
 171
 172 #define CONSTANT_ResolvedFlag 16
 173
 174 /* The cpool->data[i] for a ResolvedString points to a STRING_CST. */
 175 #define CONSTANT_ResolvedString    (CONSTANT_String+CONSTANT_ResolvedFlag)
 176
 177 /* The cpool->data[i] for a ResolvedClass points to a RECORD_TYPE. */
 178 #define CONSTANT_ResolvedClass     (CONSTANT_Class+CONSTANT_ResolvedFlag)
 179
 180 #define CPOOL_UTF(CPOOL, INDEX) ((tree) (CPOOL)->data[INDEX])
 181
 182 /* A NameAndType constant is represented as a TREE_LIST.
 183    The type is the signature string (as an IDENTIFIER_NODE).  */
 184
 185 #define NAME_AND_TYPE_NAME(CPOOL, IDX) \
 186   CPOOL_UTF(CPOOL, CPOOL_USHORT1(CPOOL, IDX))
 187 #define NAME_AND_TYPE_SIGNATURE(CPOOL, IDX) \
 188   CPOOL_UTF(CPOOL, CPOOL_USHORT2(CPOOL, IDX))
 189
 190 /* A FieldRef, MethodRef or InterfaceMethodRef constant
 191    is represented as a TREE_LIST. */
 192
 193 #define COMPONENT_REF_CLASS_INDEX(CPOOL, IDX) CPOOL_USHORT1(CPOOL, IDX)
 194 #define COMPONENT_REF_NAME_AND_TYPE(CPOOL, IDX) CPOOL_USHORT2(CPOOL, IDX)
 195 #define COMPONENT_REF_NAME(CPOOL, IDX) \
 196   NAME_AND_TYPE_NAME (CPOOL, COMPONENT_REF_NAME_AND_TYPE(CPOOL, IDX))
 197 #define COMPONENT_REF_SIGNATURE(CPOOL, IDX) \
 198   NAME_AND_TYPE_SIGNATURE (CPOOL, COMPONENT_REF_NAME_AND_TYPE(CPOOL, IDX))
 199
 200 /* "Promoted types" that are used for primitive types smaller
 201    than int.  We could use int_type_node, but then we would lose
 202    type information (such as needed for debugging). */
 203 extern tree promoted_byte_type_node;
 204 extern tree promoted_short_type_node;
 205 extern tree promoted_char_type_node;
 206 extern tree promoted_boolean_type_node;
 207
 208 extern tree byte_type_node;
 209 extern tree short_type_node;
 210 extern tree int_type_node;
 211 extern tree long_type_node;
 212
 213 extern tree unsigned_byte_type_node;
 214 extern tree unsigned_short_type_node;
 215 extern tree unsigned_int_type_node;
 216 extern tree unsigned_long_type_node;
 217
 218 extern tree boolean_type_node;
 219
 220 extern tree object_type_node;
 221 extern tree unqualified_object_id_node;
 222 extern tree object_ptr_type_node;
 223 extern tree string_type_node;
 224 extern tree string_ptr_type_node;
 225 extern tree throwable_type_node;
 226 extern tree runtime_exception_type_node;
 227 extern tree error_exception_type_node;
 228 extern tree rawdata_ptr_type_node;
 229
 230 extern tree *predef_filenames;
 231 extern int predef_filenames_size;
 232
 233 extern tree byte_array_type_node;
 234 extern tree short_array_type_node;
 235 extern tree int_array_type_node;
 236 extern tree long_array_type_node;
 237 extern tree boolean_array_type_node;
 238 extern tree char_array_type_node;
 239 extern tree double_array_type_node;
 240 extern tree float_array_type_node;
 241 extern tree array_array_type_node;
 242 extern tree object_array_type_node;
 243 extern tree string_array_type_node;
 244 extern tree TYPE_identifier_node;      /* "TYPE" */
 245 extern tree init_identifier_node;      /* "<init>" */
 246 extern tree clinit_identifier_node;      /* "<clinit>" */
 247 extern tree finit_identifier_node;      /* "$finit$" */
 248 extern tree void_signature_node;       /* "()V" */
 249 extern tree length_identifier_node;  /* "length" */
 250 extern tree this_identifier_node;  /* "this" */
 251 extern tree super_identifier_node;  /* "super" */
 252 extern tree continue_identifier_node;  /* "continue" */
 253 extern tree access0_identifier_node; /* "access$0" */
 254 extern tree one_elt_array_domain_type;
 255 /* The type of the return address of a subroutine. */
 256 extern tree return_address_type_node;
 257
 258 /* Nodes for boolean constants TRUE and FALSE. */
 259 extern tree boolean_true_node, boolean_false_node;
 260
 261 /* Integer constants not declared in tree.h. */
 262 extern tree long_zero_node;
 263 extern tree float_zero_node;
 264 extern tree double_zero_node;
 265 extern tree integer_negative_one_node;
 266 extern tree integer_two_node;
 267 extern tree integer_four_node;
 268 extern tree empty_stmt_node;
 269
 270 /* The type for struct methodtable. */
 271 extern tree methodtable_type;
 272 extern tree methodtable_ptr_type;
 273
 274 extern tree utf8const_type;
 275 extern tree utf8const_ptr_type;
 276
 277 extern tree class_type_node;
 278 extern tree class_ptr_type;
 279 extern tree field_type_node;
 280 extern tree constants_type_node;
 281 extern tree dtable_type, dtable_ptr_type;
 282 extern tree field_ptr_type_node;
 283 extern tree field_info_union_node;
 284 extern tree method_type_node;
 285 extern tree method_ptr_type_node;
 286 #define nativecode_ptr_type_node ptr_type_node
 287
 288 extern tree end_params_node;
 289
 290 /* References to internal libjava functions we use. */
 291 extern tree alloc_object_node;
 292 extern tree soft_instanceof_node;
 293 extern tree soft_checkcast_node;
 294 extern tree soft_initclass_node;
 295 extern tree soft_newarray_node;
 296 extern tree soft_anewarray_node;
 297 extern tree soft_multianewarray_node;
 298 extern tree soft_badarrayindex_node;
 299 extern tree soft_nullpointer_node;
 300 extern tree throw_node[];
 301 extern tree soft_checkarraystore_node;
 302 extern tree soft_monitorenter_node;
 303 extern tree soft_monitorexit_node;
 304 extern tree soft_lookupinterfacemethod_node;
 305 extern tree soft_lookupjnimethod_node;
 306 extern tree soft_getjnienvnewframe_node;
 307 extern tree soft_jnipopsystemframe_node;
 308 extern tree soft_fmod_node;
 309 extern tree soft_exceptioninfo_call_node;
 310 extern tree soft_idiv_node;
 311 extern tree soft_irem_node;
 312 extern tree soft_ldiv_node;
 313 extern tree soft_lrem_node;
 314
 315 extern tree access_flags_type_node;
 316
 317 extern tree class_dtable_decl;
 318
 319 /* They need to be reset before processing each class */
 320 extern struct CPool *outgoing_cpool;
 321 extern tree current_constant_pool_data_ref;
 322
 323 extern tree wfl_operator;
 324
 325 extern char *cyclic_inheritance_report;
 326
 327 extern char *cyclic_inheritance_report;
 328
 329 struct lang_identifier
 330 {
 331   struct tree_identifier ignore;
 332   tree global_value, local_value;
 333
 334   /* If non-NULL:  An ADDR_REF to a VAR_DECL that contains
 335    * the Utf8Const representation of the identifier.  */
 336   tree utf8_ref;
 337 };
 338
 339 /* Macros for access to language-specific slots in an identifier.  */
 340 /* UNless specifide, each of these slots contains a DECL node or null.  */
 341
 342 /* This represents the value which the identifier has in the
 343    file-scope namespace.  */
 344 #define IDENTIFIER_GLOBAL_VALUE(NODE)   \
 345   (((struct lang_identifier *)(NODE))->global_value)
 346 /* This represents the value which the identifier has in the current
 347    scope.  */
 348 #define IDENTIFIER_LOCAL_VALUE(NODE)    \
 349   (((struct lang_identifier *)(NODE))->local_value)
 350
 351 /* Given an identifier NODE, get the corresponding (non-handle) class.
 352    For get_identifier ("java.lang.Number"), the result is
 353    the struct whose DECL_ASSEMBLER_NAME is "Classjava_lang_Number". */
 354 #define IDENTIFIER_CLASS_VALUE(NODE) IDENTIFIER_GLOBAL_VALUE(NODE)
 355
 356 /* Given an identifier NODE, get the corresponding handle class.
 357    For get_identifier ("java.lang.Number"), the result is
 358    the struct whose DECL_ASSEMBLER_NAME is "Hjava_lang_Number". */
 359 #define IDENTIFIER_HANDLECLASS_VALUE(NODE) ???
 360
 361 /* Given a signature of a reference (or array) type, or a method, return the
 362    corresponding type (if one has been allocated).
 363    Do not use for primitive types, since they may be ambiguous.
 364    (E.g. is "I" a signature or a class name?) */
 365 #define IDENTIFIER_SIGNATURE_TYPE(NODE) IDENTIFIER_GLOBAL_VALUE(NODE)
 366
 367 /* If non-NULL:  An ADDR_REF to a VAR_DECL that contains
 368    the Utf8Const representation of the identifier.  */
 369 #define IDENTIFIER_UTF8_REF(NODE) \
 370   (((struct lang_identifier *)(NODE))->utf8_ref)
 371
 372 #define IDENTIFIER_UTF8_DECL(NODE) \
 373   TREE_OPERAND((((struct lang_identifier *)(NODE))->utf8_ref), 0)
 374
 375 /* For a FUNCTION_DECL, if we are compiling a .class file, then this is
 376    the position in the .class file of the method code.
 377    Specifically, this is the code itself, not the code attribute. */
 378 #define DECL_CODE_OFFSET(DECL) (DECL_LANG_SPECIFIC(DECL)->code_offset)
 379 /* Similarly, the length of the bytecode. */
 380 #define DECL_CODE_LENGTH(DECL) (DECL_LANG_SPECIFIC(DECL)->code_length)
 381 /* Similarly, the position of the LineNumberTable attribute. */
 382 #define DECL_LINENUMBERS_OFFSET(DECL) \
 383   (DECL_LANG_SPECIFIC(DECL)->linenumbers_offset)
 384 /* Similarly, the position of the LocalVariableTable attribute
 385    (following the standard attribute header). */
 386 #define DECL_LOCALVARIABLES_OFFSET(DECL) \
 387   (DECL_LANG_SPECIFIC(DECL)->localvariables_offset)
 388
 389 #define DECL_MAX_LOCALS(DECL) (DECL_LANG_SPECIFIC(DECL)->max_locals)
 390 #define DECL_MAX_STACK(DECL) (DECL_LANG_SPECIFIC(DECL)->max_stack)
 391 /* Number of local variable slots needed for the arguments of this function. */
 392 #define DECL_ARG_SLOT_COUNT(DECL) (DECL_LANG_SPECIFIC(DECL)->arg_slot_count)
 393 /* List of checked thrown exceptions, as specified with the `throws'
 394    keyword */
 395 #define DECL_FUNCTION_THROWS(DECL) (DECL_LANG_SPECIFIC(DECL)->throws_list)
 396 /* List of other constructors of the same class that this constructor
 397    calls */
 398 #define DECL_CONSTRUCTOR_CALLS(DECL) \
 399   (DECL_LANG_SPECIFIC(DECL)->called_constructor)
 400 /* When the function is an access function, the DECL it was trying to
 401    access */
 402 #define DECL_FUNCTION_ACCESS_DECL(DECL) \
 403   (DECL_LANG_SPECIFIC(DECL)->called_constructor)
 404 /* The identifier of the access method used to invoke this method from
 405    an inner class.  */
 406 #define DECL_FUNCTION_INNER_ACCESS(DECL) \
 407   (DECL_LANG_SPECIFIC(DECL)->inner_access)
 408 /* Pointer to the function's current's COMPOUND_EXPR tree (while
 409    completing its body) or the function's block */
 410 #define DECL_FUNCTION_BODY(DECL) (DECL_LANG_SPECIFIC(DECL)->function_decl_body)
 411 /* How specific the function is (for method selection - Java source
 412    code front-end */
 413 #define DECL_SPECIFIC_COUNT(DECL) DECL_ARG_SLOT_COUNT(DECL)
 414 /* For each function decl, init_test_table contains a hash table whose
 415    entries are keyed on class names, and whose values are local
 416    boolean decls.  The variables are intended to be TRUE when the
 417    class has been initialized in this function, and FALSE otherwise.  */
 418 #define DECL_FUNCTION_INIT_TEST_TABLE(DECL) \
 419   (DECL_LANG_SPECIFIC(DECL)->init_test_table)
 420 /* The Number of Artificial Parameters (NAP) DECL contains. this$<n>
 421    is excluded, because sometimes created as a parameter before the
 422    function decl exists. */
 423 #define DECL_FUNCTION_NAP(DECL) (DECL_LANG_SPECIFIC(DECL)->nap)
 424
 425 /* For a FIELD_DECL, holds the name of the access method used to
 426    read/write the content of the field from an inner class.
 427    The cast is ugly. FIXME  */
 428 #define FIELD_INNER_ACCESS(DECL)       ((tree)DECL_LANG_SPECIFIC (DECL))
 429
 430 /* True when DECL aliases an outer context local variable.  */
 431 #define FIELD_LOCAL_ALIAS(DECL) DECL_LANG_FLAG_6 (DECL)
 432
 433 /* True when DECL, which aliases an outer context local variable is
 434    used by the inner classe */
 435 #define FIELD_LOCAL_ALIAS_USED(DECL) DECL_LANG_FLAG_7 (DECL)
 436
 437 /* True when DECL is a this$<n> field. Note that
 438    FIELD_LOCAL_ALIAS_USED can be differenciated when tested against
 439    FIELD_LOCAL_ALIAS.  */
 440 #define FIELD_THISN(DECL) DECL_LANG_FLAG_7 (DECL)
 441
 442 /* In a LABEL_DECL, a TREE_VEC that saves the type_map at that point. */
 443 #define LABEL_TYPE_STATE(NODE) (DECL_INITIAL (NODE))
 444
 445 /* In the label of a subroutine, a dummy label that records the
 446    state following a merge of all the ret instructions in this subroutine. */
 447 #define LABEL_RETURN_LABEL(DECL) DECL_ARGUMENTS(DECL)
 448
 449 /* In the label of a sub-routine, records the type state at return.
 450  * A local may be TYPE_UNUSED, which means that the local is not
 451  * used (stored to or loaded from) in this subroutine - at least for
 452  * code that we have verified so far. */
 453 #define LABEL_RETURN_TYPE_STATE(NODE) LABEL_TYPE_STATE (LABEL_RETURN_LABEL (NODE))
 454
 455 /* In a TREE_VEC for a LABEL_RETURN_TYPE_STATE, notes that
 456    TREE_VEC_LENGTH has been adjust to the correct stack size. */
 457 #define RETURN_MAP_ADJUSTED(NODE) TREE_LANG_FLAG_2(NODE)
 458
 459 /* In the label of a sub-routine, a chain of the return location labels. */
 460 #define LABEL_RETURN_LABELS(node) DECL_RESULT (LABEL_RETURN_LABEL(node))
 461
 462 /* In a LABEL_DECL, the next pending label.
 463    See pending_blocks in expr.c. */
 464 #define LABEL_PENDING_CHAIN(NODE) DECL_RESULT(NODE)
 465
 466 /* In a LABEL_DECL, the corresponding bytecode program counter. */
 467 #define LABEL_PC(NODE) ((NODE)->decl.u2.i)
 468
 469 /* Used during verification to mark the label has "changed". (See JVM Spec). */
 470 #define LABEL_CHANGED(NODE) DECL_LANG_FLAG_6(NODE)
 471
 472 /* In a LABEL_DECL, true if we have verified instructions starting here. */
 473 #define LABEL_VERIFIED(NODE) (instruction_bits[LABEL_PC(NODE)]&BCODE_VERIFIED)
 474
 475 /* True if this code is within a subroutine (target of a jsr). */
 476 #define LABEL_IN_SUBR(NODE) DECL_LANG_FLAG_4(NODE)
 477 /* True if this code is the start of a subroutine (target of a jsr). */
 478 #define LABEL_IS_SUBR_START(NODE) DECL_LANG_FLAG_5(NODE)
 479
 480 /* In a LABEL_DECL, if LABEL_IN_SUBR(NODE), points to start of subroutine. */
 481 #define LABEL_SUBR_START(NODE) DECL_ABSTRACT_ORIGIN(NODE)
 482
 483 /* In a LABEL_DECL that has LABEL_IS_SUBR_START, this points to the start
 484    of surrounding subroutine in the case of a nested subroutine,
 485    and NULL_TREE otherwise. */
 486 #define LABEL_SUBR_CONTEXT(NODE) DECL_CONTEXT (LABEL_RETURN_LABEL (NODE))
 487
 488 /* The slot number for this local variable. */
 489 #define DECL_LOCAL_SLOT_NUMBER(NODE) \
 490   (((struct lang_decl_var*)DECL_LANG_SPECIFIC(NODE))->slot_number)
 491 /* The start (bytecode) pc for the valid range of this local variable. */
 492 #define DECL_LOCAL_START_PC(NODE) \
 493   (((struct lang_decl_var*)DECL_LANG_SPECIFIC(NODE))->start_pc)
 494 /* The end (bytecode) pc for the valid range of this local variable. */
 495 #define DECL_LOCAL_END_PC(NODE) \
 496   (((struct lang_decl_var*)DECL_LANG_SPECIFIC(NODE))->end_pc)
 497 /* For a VAR_DECLor PARM_DECL, used to chain decls with the same
 498    slot_number in decl_map. */
 499 #define DECL_LOCAL_SLOT_CHAIN(NODE) \
 500   (((struct lang_decl_var*)DECL_LANG_SPECIFIC(NODE))->slot_chain)
 501
 502 /* For a local VAR_DECL, holds the index into a words bitstring that
 503    specifies if this decl is definitively assigned.
 504    A DECL_BIT_INDEX of -1 means we no longer care. */
 505 #define DECL_BIT_INDEX(DECL) (DECL_CHECK (DECL)->decl.u2.i)
 506
 507 /* DECL_LANG_SPECIFIC for FUNCTION_DECLs. */
 508 struct lang_decl
 509 {
 510   /*  tree chain; not yet used. */
 511   long code_offset;
 512   int code_length;
 513   long linenumbers_offset;
 514   long localvariables_offset;
 515   int arg_slots;
 516   int max_locals, max_stack, arg_slot_count;
 517   tree throws_list;             /* Exception specified by `throws' */
 518   tree function_decl_body;      /* Hold all function's statements */
 519   tree called_constructor;      /* When decl is a constructor, the
 520                                    list of other constructor it calls. */
 521   struct hash_table init_test_table;
 522                                 /* Class initialization test variables.  */
 523   tree inner_access;            /* The identifier of the access method
 524                                    used for invocation from inner classes */
 525   int nap;                      /* Number of artificial parameters */
 526
 527   int native : 1;               /* Nonzero if this is a native
 528                                    method.  */
 529 };
 530
 531 /* init_test_table hash table entry structure.  */
 532 struct init_test_hash_entry
 533 {
 534   struct hash_entry root;
 535   tree init_test_decl;
 536 };
 537
 538 /* DECL_LANG_SPECIFIC for VAR_DECL and PARM_DECL. */
 539 struct lang_decl_var
 540 {
 541   int slot_number;
 542   int start_pc;
 543   int end_pc;
 544   tree slot_chain;
 545 };
 546
 547 /* Macro to access fields in `struct lang_type'.  */
 548
 549 #define TYPE_SIGNATURE(T) (TYPE_LANG_SPECIFIC(T)->signature)
 550 #define TYPE_JCF(T) (TYPE_LANG_SPECIFIC(T)->jcf)
 551 #define TYPE_CPOOL(T) (TYPE_LANG_SPECIFIC(T)->cpool)
 552 #define TYPE_CPOOL_DATA_REF(T) (TYPE_LANG_SPECIFIC(T)->cpool_data_ref)
 553 #define MAYBE_CREATE_TYPE_TYPE_LANG_SPECIFIC(T)                         \
 554   if (TYPE_LANG_SPECIFIC ((T)) == NULL)                                 \
 555     {                                                                   \
 556       TYPE_LANG_SPECIFIC ((T)) =                                        \
 557         (struct lang_type *) xmalloc (sizeof (struct lang_type));       \
 558                                                                         \
 559       bzero ((char *) TYPE_LANG_SPECIFIC ((T)),                         \
 560              sizeof (struct lang_type));                                \
 561     }
 562
 563 #define TYPE_FINIT_STMT_LIST(T)  (TYPE_LANG_SPECIFIC(T)->finit_stmt_list)
 564 #define TYPE_CLINIT_STMT_LIST(T) (TYPE_LANG_SPECIFIC(T)->clinit_stmt_list)
 565 #define TYPE_II_STMT_LIST(T)     (TYPE_LANG_SPECIFIC(T)->ii_block)
 566 /* The decl of the synthetic method `class$' used to handle `.class'
 567    for non primitive types when compiling to bytecode. */
 568 #define TYPE_DOT_CLASS(T)        (TYPE_LANG_SPECIFIC(T)->dot_class)
 569
 570 struct lang_type
 571 {
 572   tree signature;
 573   struct JCF *jcf;
 574   struct CPool *cpool;
 575   tree cpool_data_ref;          /* Cached */
 576   tree finit_stmt_list;         /* List of statements $finit$ will use */
 577   tree clinit_stmt_list;        /* List of statements <clinit> will use  */
 578   tree ii_block;                /* Instance initializer block */
 579   tree dot_class;               /* The decl of the `class$' function that
 580                                    needs to be invoked and generated when
 581                                    compiling to bytecode to implement
 582                                    <non_primitive_type>.class */
 583 };
 584
 585 #ifdef JAVA_USE_HANDLES
 586 /* TYPE_BINFO_HANDLE points from a handle-class to its corresponding
 587    non-handle-class, and vice verse. */
 588
 589 #define BINFO_HANDLE(NODE) TREE_VEC_ELT ((NODE), 6)
 590
 591 /* Given a RECORD_TYPE for a handle type, return the corresponding class. */
 592 #define HANDLE_TO_CLASS_TYPE(HTYPE) BINFO_HANDLE (TYPE_BINFO (HTYPE))
 593
 594 /* Given a RECORD_TYPE for a class, return the corresponding handle type. */
 595 #define CLASS_TO_HANDLE_TYPE(TYPE) BINFO_HANDLE (TYPE_BINFO (TYPE))
 596 #else
 597 #define HANDLE_TO_CLASS_TYPE(HTYPE) (HTYPE)
 598 #define CLASS_TO_HANDLE_TYPE(TYPE) (TYPE)
 599 #endif
 600
 601 #define JCF_u4 unsigned long
 602 #define JCF_u2 unsigned short
 603
 604 extern void add_assume_compiled PARAMS ((const char *, int));
 605 extern tree lookup_class PARAMS ((tree));
 606 extern tree lookup_java_constructor PARAMS ((tree, tree));
 607 extern tree lookup_java_method PARAMS ((tree, tree, tree));
 608 extern tree lookup_argument_method PARAMS ((tree, tree, tree));
 609 extern tree lookup_argument_method2 PARAMS ((tree, tree, tree));
 610 extern tree promote_type PARAMS ((tree));
 611 extern tree get_constant PARAMS ((struct JCF*, int));
 612 extern tree get_name_constant PARAMS ((struct JCF*, int));
 613 extern tree get_class_constant PARAMS ((struct JCF*, int));
 614 extern tree parse_signature PARAMS ((struct JCF *jcf, int sig_index));
 615 extern void jcf_parse PARAMS ((struct JCF*));
 616 extern tree add_field PARAMS ((tree, tree, tree, int));
 617 extern tree add_method PARAMS ((tree, int, tree, tree));
 618 extern tree add_method_1 PARAMS ((tree, int, tree, tree));
 619 extern tree make_class PARAMS ((void));
 620 extern tree push_class PARAMS ((tree, tree));
 621 extern tree unmangle_classname PARAMS ((const char *name, int name_length));
 622 extern tree parse_signature_string PARAMS ((const unsigned char *, int));
 623 extern tree get_type_from_signature PARAMS ((tree));
 624 extern void layout_class PARAMS ((tree));
 625 extern tree layout_class_method PARAMS ((tree, tree, tree, tree));
 626 extern void layout_class_methods PARAMS ((tree));
 627 extern tree build_class_ref PARAMS ((tree));
 628 extern tree build_dtable_decl PARAMS ((tree));
 629 extern tree build_internal_class_name PARAMS ((tree));
 630 extern tree build_constants_constructor PARAMS ((void));
 631 extern tree build_ref_from_constant_pool PARAMS ((int));
 632 extern tree build_utf8_ref PARAMS ((tree));
 633 extern tree ident_subst PARAMS ((const char*, int,
 634                                 const char*, int, int, const char*));
 635 extern tree identifier_subst PARAMS ((const tree,
 636                                      const char *, int, int, const char *));
 637 extern tree build_java_signature PARAMS ((tree));
 638 extern tree build_java_argument_signature PARAMS ((tree));
 639 extern void set_java_signature PARAMS ((tree, tree));
 640 extern tree build_static_field_ref PARAMS ((tree));
 641 extern tree build_address_of PARAMS ((tree));
 642 extern tree find_local_variable PARAMS ((int index, tree type, int pc));
 643 extern tree find_stack_slot PARAMS ((int index, tree type));
 644 extern tree build_prim_array_type PARAMS ((tree, HOST_WIDE_INT));
 645 extern tree build_java_array_type PARAMS ((tree, HOST_WIDE_INT));
 646 extern int is_compiled_class PARAMS ((tree));
 647 extern tree mangled_classname PARAMS ((const char*, tree));
 648 extern tree lookup_label PARAMS ((int));
 649 extern tree pop_type_0 PARAMS ((tree));
 650 extern tree pop_type PARAMS ((tree));
 651 extern void pop_argument_types PARAMS ((tree));
 652 extern tree decode_newarray_type PARAMS ((int));
 653 extern tree lookup_field PARAMS ((tree*, tree));
 654 extern int is_array_type_p PARAMS ((tree));
 655 extern HOST_WIDE_INT java_array_type_length PARAMS ((tree));
 656 extern int read_class PARAMS ((tree));
 657 extern void load_class PARAMS ((tree, int));
 658
 659 extern tree lookup_name PARAMS ((tree));
 660 extern tree build_known_method_ref PARAMS ((tree, tree, tree, tree, tree));
 661 extern tree build_class_init PARAMS ((tree, tree));
 662 extern tree build_invokevirtual PARAMS ((tree, tree));
 663 extern tree build_invokeinterface PARAMS ((tree, tree));
 664 extern tree build_jni_stub PARAMS ((tree));
 665 extern tree invoke_build_dtable PARAMS ((int, tree));
 666 extern tree build_field_ref PARAMS ((tree, tree, tree));
 667 extern void pushdecl_force_head PARAMS ((tree));
 668 extern tree build_java_binop PARAMS ((enum tree_code, tree, tree, tree));
 669 extern tree build_java_soft_divmod PARAMS ((enum tree_code, tree, tree, tree));
 670 extern tree binary_numeric_promotion PARAMS ((tree, tree, tree *, tree *));
 671 extern tree build_java_arrayaccess PARAMS ((tree, tree, tree));
 672 extern tree build_newarray PARAMS ((int, tree));
 673 extern tree build_anewarray PARAMS ((tree, tree));
 674 extern tree build_new_array PARAMS ((tree, tree));
 675 extern tree build_java_array_length_access PARAMS ((tree));
 676 extern tree build_java_arraynull_check PARAMS ((tree, tree, tree));
 677 extern tree create_label_decl PARAMS ((tree));
 678 extern void push_labeled_block PARAMS ((tree));
 679 extern tree prepare_eh_table_type PARAMS ((tree));
 680 extern void java_set_exception_lang_code PARAMS ((void));
 681 extern tree generate_name PARAMS ((void));
 682 extern void pop_labeled_block PARAMS ((void));
 683 extern const char *lang_printable_name PARAMS ((tree, int));
 684 extern tree maybe_add_interface PARAMS ((tree, tree));
 685 extern void set_super_info PARAMS ((int, tree, tree, int));
 686 extern int get_access_flags_from_decl PARAMS ((tree));
 687 extern int interface_of_p PARAMS ((tree, tree));
 688 extern int inherits_from_p PARAMS ((tree, tree));
 689 extern int enclosing_context_p PARAMS ((tree, tree));
 690 extern void complete_start_java_method PARAMS ((tree));
 691 extern tree build_result_decl PARAMS ((tree));
 692 extern void emit_handlers PARAMS ((void));
 693 extern void init_outgoing_cpool PARAMS ((void));
 694 extern void make_class_data PARAMS ((tree));
 695 extern void register_class PARAMS ((void));
 696 extern int alloc_name_constant PARAMS ((int, tree));
 697 extern void emit_register_classes PARAMS ((void));
 698 extern void lang_init_source PARAMS ((int));
 699 extern void write_classfile PARAMS ((tree));
 700 extern char *print_int_node PARAMS ((tree));
 701 extern void parse_error_context PARAMS ((tree cl, const char *, ...))
 702   ATTRIBUTE_PRINTF_2;
 703 extern tree build_primtype_type_ref PARAMS ((const char *));
 704 extern tree java_get_real_method_name PARAMS ((tree));
 705 extern void finish_class PARAMS ((void));
 706 extern void java_layout_seen_class_methods PARAMS ((void));
 707 extern void check_for_initialization PARAMS ((tree));
 708
 709 extern tree pushdecl_top_level PARAMS ((tree));
 710 extern int alloc_class_constant PARAMS ((tree));
 711 extern int unicode_mangling_length PARAMS ((const char *, int));
 712 extern void init_expr_processing PARAMS ((void));
 713 extern void push_super_field PARAMS ((tree, tree));
 714 extern void init_class_processing PARAMS ((void));
 715 extern int can_widen_reference_to PARAMS ((tree, tree));
 716 extern int class_depth PARAMS ((tree));
 717 extern int verify_jvm_instructions PARAMS ((struct JCF *, const unsigned char *, long));
 718 extern void maybe_pushlevels PARAMS ((int));
 719 extern void maybe_poplevels PARAMS ((int));
 720 extern void force_poplevels PARAMS ((int));
 721 extern int process_jvm_instruction PARAMS ((int, const unsigned char *, long));
 722 extern void set_local_type PARAMS ((int, tree));
 723 extern int merge_type_state PARAMS ((tree));
 724 extern void push_type PARAMS ((tree));
 725 extern void load_type_state PARAMS ((tree));
 726 extern void add_interface PARAMS ((tree, tree));
 727 extern void append_gpp_mangled_name PARAMS ((struct obstack *, const char *, int));
 728 extern void append_gpp_mangled_classtype PARAMS ((struct obstack *, const char *));
 729 extern void emit_unicode_mangled_name PARAMS ((struct obstack *, const char *, int));
 730 extern tree force_evaluation_order PARAMS ((tree));
 731 extern int verify_constant_pool PARAMS ((struct JCF *));
 732 extern void start_java_method PARAMS ((tree));
 733 extern void end_java_method PARAMS ((void));
 734 extern void give_name_to_locals PARAMS ((struct JCF *));
 735 extern void expand_byte_code PARAMS ((struct JCF *, tree));
 736 extern int open_in_zip PARAMS ((struct JCF *, const char *, const char *, int));
 737 extern void set_constant_value PARAMS ((tree, tree));
 738 #ifdef jword
 739 extern int find_constant1 PARAMS ((struct CPool *, int, jword));
 740 extern int find_constant2 PARAMS ((struct CPool *, int, jword, jword));
 741 #endif
 742 extern int find_utf8_constant PARAMS ((struct CPool *, tree));
 743 extern int find_string_constant PARAMS ((struct CPool *, tree));
 744 extern int find_class_constant PARAMS ((struct CPool *, tree));
 745 extern int find_fieldref_index PARAMS ((struct CPool *, tree));
 746 extern int find_methodref_index PARAMS ((struct CPool *, tree));
 747 extern void write_constant_pool PARAMS ((struct CPool *, unsigned char *, int));
 748 extern int count_constant_pool_bytes PARAMS ((struct CPool *));
 749 extern int encode_newarray_type PARAMS ((tree));
 750 #ifdef uint64
 751 extern void format_int PARAMS ((char *, jlong, int));
 752 extern void format_uint PARAMS ((char *, uint64, int));
 753 #endif
 754 extern void jcf_trim_old_input PARAMS ((struct JCF *));
 755 #ifdef BUFSIZ
 756 extern void jcf_print_utf8 PARAMS ((FILE *, const unsigned char *, int));
 757 extern void jcf_print_char PARAMS ((FILE *, int));
 758 extern void jcf_print_utf8_replace PARAMS ((FILE *, const unsigned char *,
 759                                            int, int, int));
 760 # if JCF_USE_STDIO
 761 extern char* open_class PARAMS ((char *, struct JCF *, FILE *, const char *));
 762 # else
 763 extern char* open_class PARAMS ((char *, struct JCF *, int, const char *));
 764 # endif /* JCF_USE_STDIO */
 765 #endif
 766 void java_debug_context PARAMS ((void));
 767 void safe_layout_class PARAMS ((tree));
 768
 769 extern tree get_boehm_type_descriptor PARAMS ((tree));
 770 extern unsigned long java_hash_hash_tree_node PARAMS ((hash_table_key));
 771 extern boolean java_hash_compare_tree_node PARAMS ((hash_table_key,
 772                                                     hash_table_key));
 773
 774 /* We use ARGS_SIZE_RTX to indicate that gcc/expr.h has been included
 775    to declare `enum expand_modifier'. */
 776 #if defined (TREE_CODE) && defined(RTX_CODE) && defined (HAVE_MACHINE_MODES) && defined (ARGS_SIZE_RTX)
 777 struct rtx_def * java_lang_expand_expr PARAMS ((tree, rtx, enum machine_mode,
 778                                                enum expand_modifier));
 779 #endif /* TREE_CODE && RTX_CODE && HAVE_MACHINE_MODES && ARGS_SIZE_RTX */
 780
 781 /* Access flags etc for a method (a FUNCTION_DECL): */
 782
 783 #define METHOD_PUBLIC(DECL) DECL_LANG_FLAG_1 (DECL)
 784 #define METHOD_PRIVATE(DECL) TREE_PRIVATE (DECL)
 785 #define METHOD_PROTECTED(DECL) TREE_PROTECTED (DECL)
 786 #define METHOD_STATIC(DECL) DECL_LANG_FLAG_2 (DECL)
 787 #define METHOD_FINAL(DECL) DECL_LANG_FLAG_3 (DECL)
 788 #define METHOD_SYNCHRONIZED(DECL) DECL_LANG_FLAG_4 (DECL)
 789 #define METHOD_NATIVE(DECL) (DECL_LANG_SPECIFIC(DECL)->native)
 790 #define METHOD_ABSTRACT(DECL) DECL_LANG_FLAG_5 (DECL)
 791 #define METHOD_TRANSIENT(DECL) DECL_LANG_FLAG_6 (DECL)
 792
 793 /* Other predicates on method decls  */
 794
 795 #define DECL_CONSTRUCTOR_P(DECL) DECL_LANG_FLAG_7(DECL)
 796
 797 #define DECL_INIT_P(DECL)   (ID_INIT_P (DECL_NAME (DECL)))
 798 #define DECL_FINIT_P(DECL)  (ID_FINIT_P (DECL_NAME (DECL)))
 799 #define DECL_CLINIT_P(DECL) (ID_CLINIT_P (DECL_NAME (DECL)))
 800
 801 /* Predicates on method identifiers. Kept close to other macros using
 802    them  */
 803 #define ID_INIT_P(ID)   ((ID) == init_identifier_node)
 804 #define ID_FINIT_P(ID)  ((ID) == finit_identifier_node)
 805 #define ID_CLINIT_P(ID) ((ID) == clinit_identifier_node)
 806
 807 /* Access flags etc for a variable/field (a FIELD_DECL): */
 808
 809 #define FIELD_PRIVATE(DECL) TREE_PRIVATE (DECL)
 810 #define FIELD_PROTECTED(DECL) TREE_PROTECTED (DECL)
 811 #define FIELD_PUBLIC(DECL) DECL_LANG_FLAG_1 (DECL)
 812 #define FIELD_STATIC(DECL) TREE_STATIC (DECL)
 813 #define FIELD_FINAL(DECL) DECL_LANG_FLAG_3 (DECL)
 814 #define FIELD_VOLATILE(DECL) DECL_LANG_FLAG_4 (DECL)
 815 #define FIELD_TRANSIENT(DECL) DECL_LANG_FLAG_5 (DECL)
 816 #define LOCAL_FINAL(DECL) FIELD_FINAL(DECL)
 817
 818 /* Access flags etc for a class (a TYPE_DECL): */
 819
 820 #define CLASS_PUBLIC(DECL) DECL_LANG_FLAG_1 (DECL)
 821 #define CLASS_FINAL(DECL) DECL_LANG_FLAG_3 (DECL)
 822 #define CLASS_INTERFACE(DECL) DECL_LANG_FLAG_4 (DECL)
 823 #define CLASS_ABSTRACT(DECL) DECL_LANG_FLAG_5 (DECL)
 824 #define CLASS_SUPER(DECL) DECL_LANG_FLAG_6 (DECL)
 825 #define CLASS_STATIC(DECL) DECL_LANG_FLAG_7 (DECL)
 826
 827 /* @deprecated marker flag on methods, fields and classes */
 828
 829 #define METHOD_DEPRECATED(DECL) DECL_LANG_FLAG_0 (DECL)
 830 #define FIELD_DEPRECATED(DECL) DECL_LANG_FLAG_0 (DECL)
 831 #define CLASS_DEPRECATED(DECL) DECL_LANG_FLAG_0 (DECL)
 832 #define DECL_DEPRECATED(DECL) DECL_LANG_FLAG_0 (DECL)
 833
 834 /* The number of virtual methods in this class's dispatch table.
 835  Does not include initial two dummy entries (one points to the
 836  Class object, and the other is for G++ -fvtable-thunks compatibility). */
 837 #define TYPE_NVIRTUALS(TYPE) TYPE_BINFO_VIRTUALS (TYPE)
 838
 839 /* A TREE_VEC (indexed by DECL_VINDEX) containing this class's
 840    virtual methods. */
 841 #define TYPE_VTABLE(TYPE) TYPE_BINFO_VTABLE(TYPE)
 842
 843 /* Use CLASS_LOADED_P? FIXME */
 844 #define CLASS_COMPLETE_P(DECL) DECL_LANG_FLAG_2 (DECL)
 845
 846 /* This maps a bytecode offset (PC) to various flags,
 847    listed below (starting with BCODE_). */
 848 extern char *instruction_bits;
 849
 850 /* True iff the byte is the start of an instruction. */
 851 #define BCODE_INSTRUCTION_START 1
 852
 853 /* True iff there is a jump to this location. */
 854 #define BCODE_JUMP_TARGET 2
 855
 856 /* True iff there is a return to this location.
 857    (I.e. the preceedng instruction was a call.) */
 858 #define BCODE_RETURN_TARGET 4
 859
 860 /* True iff this is the start of an exception handler. */
 861 #define BCODE_EXCEPTION_TARGET 16
 862
 863 /* True iff there is a jump to this location (and it needs a label). */
 864 #define BCODE_TARGET \
 865   (BCODE_JUMP_TARGET|BCODE_RETURN_TARGET \
 866    | BCODE_EXCEPTION_TARGET)
 867
 868 /* True iff there is an entry in the linenumber table for this location. */
 869 #define BCODE_HAS_LINENUMBER 32
 870
 871 /* True iff there is more than one entry in the linenumber table for
 872    this location.  (This probably does not make much sense.)  */
 873 #define BCODE_HAS_MULTI_LINENUMBERS 64
 874
 875 /* True if this instruction has been verified. */
 876 #define BCODE_VERIFIED 8
 877
 878 /* A pointer to the line number table of the current method. */
 879 extern const unsigned char *linenumber_table;
 880 /* The length (in items) of the line number table. */
 881 extern int linenumber_count;
 882
 883 /* In type_map, means that slot is uninitialized or otherwise unusable. */
 884 #define TYPE_UNKNOWN NULL_TREE
 885
 886 /* In type_map, means the second half of a 64-bit double or long. */
 887 #define TYPE_SECOND void_type_node
 888
 889 /* In type_map, means the null type (i.e. type of a null reference). */
 890 #define TYPE_NULL ptr_type_node
 891
 892 /* In a type map means the type the address subroutine return address. */
 893 #define TYPE_RETURN_ADDR return_address_type_node
 894
 895 /* In a subroutine's return type map, indicates that the slot was neither
 896    used nor set in the subroutine. */
 897 #define TYPE_UNUSED error_mark_node
 898
 899 /* A array mapping variable/stack slot index to the type current
 900    in that variable/stack slot.
 901    TYPE_UNKNOWN, TYPE_SECOND, and TYPE_NULL are special cases. */
 902 extern tree *type_map;
 903
 904 /* Map a stack index to the type currently in that slot. */
 905 #define stack_type_map (type_map+DECL_MAX_LOCALS(current_function_decl))
 906
 907 /* True iff TYPE takes two variable/stack slots. */
 908 #define TYPE_IS_WIDE(TYPE) \
 909   ((TYPE) == double_type_node || (TYPE) == long_type_node)
 910
 911 /* True iif CLASS has it's access$0 method generated.  */
 912 #define CLASS_ACCESS0_GENERATED_P(CLASS) TYPE_LANG_FLAG_0 (CLASS)
 913
 914 /* True iff TYPE is a Java array type. */
 915 #define TYPE_ARRAY_P(TYPE) TYPE_LANG_FLAG_1 (TYPE)
 916
 917 /* If FUNCTION_TYPE or METHOD_TYPE: cache for build_java_argument_signature. */
 918 #define TYPE_ARGUMENT_SIGNATURE(TYPE) TYPE_VFIELD(TYPE)
 919
 920 /* Given an array type, give the type of the elements. */
 921 /* FIXME this use of TREE_TYPE conflicts with something or other. */
 922 #define TYPE_ARRAY_ELEMENT(ATYPE) TREE_TYPE(ATYPE)
 923
 924 /* True if class TYPE has been loaded. */
 925 #define CLASS_LOADED_P(TYPE) TYPE_LANG_FLAG_2 (TYPE)
 926
 927 /* True if class TYPE was defined in Java source code. */
 928 #define CLASS_FROM_SOURCE_P(TYPE) TYPE_LANG_FLAG_3 (TYPE)
 929
 930 /* True of a RECORD_TYPE of a class/interface type (not array type) */
 931 #define CLASS_P(TYPE) TYPE_LANG_FLAG_4 (TYPE)
 932
 933 /* True if class TYPE was defined in a Java source file compiled. */
 934 #define CLASS_FROM_CURRENTLY_COMPILED_SOURCE_P(TYPE) \
 935   TYPE_LANG_FLAG_5 (TYPE)
 936
 937 /* True if class TYPE is currently being laid out. Helps in detection
 938    of inheritance cycle occuring as a side effect of performing the
 939    layout of a class.  */
 940 #define CLASS_BEING_LAIDOUT(TYPE) TYPE_LANG_FLAG_6 (TYPE)
 941
 942 /* True if class TYPE is currently being laid out. Helps in detection
 943    of inheritance cycle occuring as a side effect of performing the
 944    layout of a class.  */
 945 #define CLASS_BEING_LAIDOUT(TYPE) TYPE_LANG_FLAG_6 (TYPE)
 946
 947 /* True if class TYPE has a field initializer $finit$ function */
 948 #define CLASS_HAS_FINIT_P(TYPE) TYPE_FINIT_STMT_LIST (TYPE)
 949
 950 /* True if identifier ID was seen while processing a single type import stmt */
 951 #define IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P(ID) TREE_LANG_FLAG_0 (ID)
 952
 953 /* True if identifier ID was seen while processing an import statement */
 954 #define IS_A_CLASSFILE_NAME(ID) TREE_LANG_FLAG_1 (ID)
 955
 956 /* True if ID is a qualified named (contains . or /) */
 957 #define QUALIFIED_P(ID) TREE_LANG_FLAG_2 (ID)
 958
 959 /* True if ID is an already processed import on demand */
 960 #define IS_AN_IMPORT_ON_DEMAND_P(ID) TREE_LANG_FLAG_3 (ID)
 961
 962 /* True if ID is a command-line specified filename */
 963 #define IS_A_COMMAND_LINE_FILENAME_P(ID) TREE_LANG_FLAG_4 (ID)
 964
 965 /* True if filename ID has already been parsed */
 966 #define HAS_BEEN_ALREADY_PARSED_P(ID) TREE_LANG_FLAG_5 (ID)
 967
 968 /* True if EXPR is RHS sub-tree of a compound assign expression */
 969 #define COMPOUND_ASSIGN_P(EXPR) TREE_LANG_FLAG_1 (EXPR)
 970
 971 /* True if a SWITCH_EXPR has a DEFAULT_EXPR. */
 972 #define SWITCH_HAS_DEFAULT(NODE) TREE_LANG_FLAG_3 (NODE)
 973
 974 /* True if EXPR (a WFL in that case) was created after the
 975    reduction of PRIMARY . XXX */
 976 #define PRIMARY_P(EXPR) TREE_LANG_FLAG_2 (EXPR)
 977
 978 /* True if EXPR (a MODIFY_EXPR in that case) is the result of variable
 979    initialization during its declaration */
 980 #define MODIFY_EXPR_FROM_INITIALIZATION_P(EXPR) TREE_LANG_FLAG_2 (EXPR)
 981
 982 /* True if EXPR (a WFL in that case) resolves into an expression name */
 983 #define RESOLVE_EXPRESSION_NAME_P(WFL) TREE_LANG_FLAG_0 (WFL)
 984
 985 /* True if EXPR (a LOOP_EXPR in that case) is part of a for statement */
 986 #define FOR_LOOP_P(EXPR) TREE_LANG_FLAG_0 (EXPR)
 987
 988 /* True if NODE (a RECORD_TYPE in that case) is an anonymous class.  */
 989 #define ANONYMOUS_CLASS_P(NODE) TREE_LANG_FLAG_0 (NODE)
 990
 991 /* True if NODE (a RECORD_TYPE in that case) is a block local class.  */
 992 #define LOCAL_CLASS_P(NODE) TREE_LANG_FLAG_1 (NODE)
 993
 994 /* True if NODE (a TREE_LIST) hold a pair of argument name/type
 995    declared with the final modifier */
 996 #define ARG_FINAL_P(NODE) TREE_LANG_FLAG_0 (NODE)
 997
 998 /* True if EXPR (a WFL in that case) resolves into a package name */
 999 #define RESOLVE_PACKAGE_NAME_P(WFL) TREE_LANG_FLAG_3 (WFL)
1000
1001 /* True if EXPR (a WFL in that case) resolves into a type name */
1002 #define RESOLVE_TYPE_NAME_P(WFL) TREE_LANG_FLAG_4 (WFL)
1003
1004 /* True if STMT (a WFL in that case) holds a BREAK statement */
1005 #define IS_BREAK_STMT_P(WFL) TREE_LANG_FLAG_5 (WFL)
1006
1007 /* True if EXPR (a CALL_EXPR in that case) is a crafted StringBuffer */
1008 #define IS_CRAFTED_STRING_BUFFER_P(EXPR) TREE_LANG_FLAG_5 (EXPR)
1009
1010 /* True if EXPR (a SAVE_EXPR in that case) had its content already
1011    checked for (un)initialized local variables.  */
1012 #define IS_INIT_CHECKED(EXPR) TREE_LANG_FLAG_5 (EXPR)
1013
1014 /* If set in CALL_EXPR, the receiver is 'super'. */
1015 #define CALL_USING_SUPER(EXPR) TREE_LANG_FLAG_4 (EXPR)
1016
1017 /* True if NODE (a statement) can complete normally. */
1018 #define CAN_COMPLETE_NORMALLY(NODE) TREE_LANG_FLAG_6(NODE)
1019
1020 /* True if NODE (an IDENTIFIER) bears the name of a outer field from
1021    inner class access function.  */
1022 #define OUTER_FIELD_ACCESS_IDENTIFIER_P(NODE) TREE_LANG_FLAG_6(NODE)
1023
1024 /* Non null if NODE belongs to an inner class TYPE_DECL node.
1025    Verifies that NODE as the attributes of a decl.  */
1026 #define INNER_CLASS_DECL_P(NODE) (TYPE_NAME (TREE_TYPE (NODE)) == NODE  \
1027                                   && DECL_CONTEXT (NODE))
1028
1029 /* Non null if NODE is an top level class TYPE_DECL node: NODE isn't
1030    an inner class or NODE is a static class.  */
1031 #define TOPLEVEL_CLASS_DECL_P(NODE) (!INNER_CLASS_DECL_P (NODE)         \
1032                                      || CLASS_STATIC (NODE))
1033
1034 /* True if the class decl NODE was declared in a inner scope and is
1035    not a toplevel class */
1036 #define PURE_INNER_CLASS_DECL_P(NODE) \
1037   (INNER_CLASS_DECL_P (NODE) && !CLASS_STATIC (NODE))
1038
1039 /* Non null if NODE belongs to an inner class RECORD_TYPE node. Checks
1040    that TYPE_NAME bears a decl. An array type wouldn't.  */
1041 #define INNER_CLASS_TYPE_P(NODE) (TREE_CODE (TYPE_NAME (NODE)) == TYPE_DECL \
1042                                   && DECL_CONTEXT (TYPE_NAME (NODE)))
1043
1044 #define TOPLEVEL_CLASS_TYPE_P(NODE) (!INNER_CLASS_TYPE_P (NODE)         \
1045                                      || CLASS_STATIC (TYPE_NAME (NODE)))
1046
1047 /* True if the class type NODE was declared in a inner scope and is
1048    not a toplevel class */
1049 #define PURE_INNER_CLASS_TYPE_P(NODE) \
1050   (INNER_CLASS_TYPE_P (NODE) && !CLASS_STATIC (TYPE_NAME (NODE)))
1051
1052 /* Non null if NODE (a TYPE_DECL or a RECORD_TYPE) is an inner class.  */
1053 #define INNER_CLASS_P(NODE) (TREE_CODE (NODE) == TYPE_DECL ?                  \
1054                              INNER_CLASS_DECL_P (NODE) :                      \
1055                              (TREE_CODE (NODE) == RECORD_TYPE ?               \
1056                               INNER_CLASS_TYPE_P (NODE) :                     \
1057                               (fatal ("INNER_CLASS_P: Wrong node type"), 0)))
1058
1059 /* On a TYPE_DECL, hold the list of inner classes defined within the
1060    scope of TYPE_DECL.  */
1061 #define DECL_INNER_CLASS_LIST(NODE) DECL_INITIAL (NODE)
1062
1063 /* Add a FIELD_DECL to RECORD_TYPE RTYPE.
1064    The field has name NAME (a char*), and type FTYPE.
1065    Unless this is the first field, FIELD most hold the previous field.
1066    FIELD is set to the newly created FIELD_DECL.
1067
1068    We set DECL_ARTIFICIAL so these fields get skipped by make_class_data
1069    if compiling java.lang.Object or java.lang.Class. */
1070
1071 #define PUSH_FIELD(RTYPE, FIELD, NAME, FTYPE) \
1072 { tree tmp_field = build_decl (FIELD_DECL, get_identifier(NAME), FTYPE); \
1073   if (TYPE_FIELDS (RTYPE) == NULL_TREE) TYPE_FIELDS (RTYPE) = tmp_field; \
1074   else TREE_CHAIN(FIELD) = tmp_field; \
1075   DECL_CONTEXT (tmp_field) = RTYPE; \
1076   DECL_ARTIFICIAL (tmp_field) = 1; \
1077   FIELD = tmp_field; }
1078
1079 #define FINISH_RECORD(RTYPE) layout_type (RTYPE)
1080
1081 /* Start building a RECORD_TYPE constructor with a given TYPE in CONS. */
1082 #define START_RECORD_CONSTRUCTOR(CONS, CTYPE) { \
1083   CONS = build (CONSTRUCTOR, CTYPE, NULL_TREE, NULL_TREE);\
1084   TREE_CHAIN(CONS) = TYPE_FIELDS (CTYPE); }
1085
1086 /* Append a field initializer to CONS for the dummy field for the inherited
1087    fields.  The dummy field has the given VALUE, and the same type as the
1088    super-class.   Must be specified before calls to PUSH_FIELD_VALUE. */
1089
1090 #define PUSH_SUPER_VALUE(CONS, VALUE) {\
1091   tree field = TREE_CHAIN(CONS);\
1092   if (DECL_NAME (field) != NULL_TREE) abort();\
1093   CONSTRUCTOR_ELTS(CONS) = tree_cons (field, VALUE, CONSTRUCTOR_ELTS(CONS));\
1094   TREE_CHAIN(CONS) = TREE_CHAIN (field); }
1095
1096 /* Append a field initializer to CONS for a field with the given VALUE.
1097    NAME is a char* string used for error checking;
1098    the initializer must be specified in order. */
1099 #define PUSH_FIELD_VALUE(CONS, NAME, VALUE) {\
1100   tree field = TREE_CHAIN(CONS);\
1101   if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), NAME) != 0) abort();\
1102   CONSTRUCTOR_ELTS(CONS) = tree_cons (field, VALUE, CONSTRUCTOR_ELTS(CONS));\
1103   TREE_CHAIN(CONS) = TREE_CHAIN (field); }
1104
1105 /* Finish creating a record CONSTRUCTOR CONS. */
1106 #define FINISH_RECORD_CONSTRUCTOR(CONS) \
1107   CONSTRUCTOR_ELTS(CONS) = nreverse (CONSTRUCTOR_ELTS(CONS))
1108
1109 /* Macros on constructors invocations.  */
1110 #define CALL_CONSTRUCTOR_P(NODE)                \
1111   (TREE_CODE (NODE) == NEW_CLASS_EXPR || CALL_EXPLICIT_CONSTRUCTOR_P (NODE))
1112
1113 #define CALL_EXPLICIT_CONSTRUCTOR_P(NODE)                               \
1114   (CALL_THIS_CONSTRUCTOR_P (NODE) || CALL_SUPER_CONSTRUCTOR_P (NODE))
1115
1116 #define CALL_THIS_CONSTRUCTOR_P(NODE)                                   \
1117   (TREE_CODE (NODE) == CALL_EXPR                                        \
1118    && EXPR_WFL_NODE (TREE_OPERAND (NODE, 0)) == this_identifier_node)
1119
1120 #define CALL_SUPER_CONSTRUCTOR_P(NODE)                                  \
1121   (TREE_CODE (NODE) == CALL_EXPR                                        \
1122    && EXPR_WFL_NODE (TREE_OPERAND (NODE, 0)) == super_identifier_node)
1123
1124 /* Using a FINALLY_EXPR node */
1125 #define FINALLY_EXPR_LABEL(NODE) TREE_OPERAND ((NODE), 0)
1126 #define FINALLY_EXPR_BLOCK(NODE) TREE_OPERAND ((NODE), 1)
1127
1128 #define BLOCK_EXPR_DECLS(NODE)  BLOCK_VARS(NODE)
1129 #define BLOCK_EXPR_BODY(NODE)   BLOCK_SUBBLOCKS(NODE)
1130
1131 #define BUILD_MONITOR_ENTER(WHERE, ARG)                         \
1132   {                                                             \
1133     (WHERE) = build (CALL_EXPR, int_type_node,                  \
1134                      build_address_of (soft_monitorenter_node), \
1135                      build_tree_list (NULL_TREE, (ARG)),        \
1136                      NULL_TREE);                                \
1137     TREE_SIDE_EFFECTS (WHERE) = 1;                              \
1138   }
1139
1140 #define BUILD_MONITOR_EXIT(WHERE, ARG)                          \
1141   {                                                             \
1142     (WHERE) = build (CALL_EXPR, int_type_node,                  \
1143                      build_address_of (soft_monitorexit_node),  \
1144                      build_tree_list (NULL_TREE, (ARG)),        \
1145                      NULL_TREE);                                \
1146     TREE_SIDE_EFFECTS (WHERE) = 1;                              \
1147   }
1148
1149 /* Non zero if TYPE is an unchecked exception */
1150 #define IS_UNCHECKED_EXCEPTION_P(TYPE)                          \
1151   (inherits_from_p ((TYPE), runtime_exception_type_node)        \
1152    || inherits_from_p ((TYPE), error_exception_type_node))
1153
1154 extern int java_error_count;                                    \
1155
1156 /* Make the current function where this macro is invoked report error
1157    messages and and return, if any */
1158 #define java_parse_abort_on_error()                                     \
1159   {                                                                     \
1160      if (java_error_count > save_error_count)                           \
1161        return;                                                          \
1162    }
1163
1164 #undef DEBUG_JAVA_BINDING_LEVELS