1 /* Definitions for parsing and type checking for the GNU compiler for
3 Copyright (C) 1997, 1998 Free Software Foundation, Inc.
5 This file is part of GNU CC.
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)
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.
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.
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. */
26 /* Hacked by Per Bothner <bothner@cygnus.com> February 1996. */
28 /* Java language-specific tree codes. */
29 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
31 __DUMMY = LAST_AND_UNUSED_TREE_CODE,
32 #include "java-tree.def"
39 /* Usage of TREE_LANG_FLAG_?:
40 0: IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (in IDENTIFIER_NODE)
41 RESOLVE_EXPRESSION_NAME_P (in EXPR_WITH_FILE_LOCATION)
42 IS_FOR_LOOP_P (in LOOP_EXPR)
43 1: CLASS_HAS_SUPER_FLAG (in TREE_VEC).
44 IS_A_CLASSFILE_NAME (in IDENTIFIER_NODE)
45 COMPOUND_ASSIGN_P (in EXPR (binop_*))
46 2: RETURN_MAP_ADJUSTED (in TREE_VEC).
47 QUALIFIED_P (in IDENTIFIER_NODE)
48 PRIMARY_P (in EXPR_WITH_FILE_LOCATION)
49 MODIFY_EXPR_FROM_INITIALIZATION_P (in MODIFY_EXPR)
50 3: IS_AN_IMPORT_ON_DEMAND_P (in IDENTIFIER_NODE)
51 RESOLVE_PACKAGE_NAME_P (in EXPR_WITH_FILE_LOCATION)
52 SWITCH_HAS_DEFAULT (in SWITCH_EXPR)
53 4: IS_A_COMMAND_LINE_FILENAME_P (in IDENTIFIER_NODE)
54 RESOLVE_TYPE_NAME_P (in EXPR_WITH_FILE_LOCATION)
55 5: HAS_BEEN_ALREADY_PARSED_P (in IDENTIFIER_NODE)
56 IS_BREAK_STMT_P (in EXPR_WITH_FILE_LOCATION)
57 IS_CRAFTED_STRING_BUFFER_P (in CALL_EXPR)
58 6: CAN_COMPLETE_NORMALLY (in statement nodes).
60 Usage of TYPE_LANG_FLAG_?:
61 1: TYPE_ARRAY_P (in RECORD_TYPE).
62 2: CLASS_LOADED_P (in RECORD_TYPE).
63 3: CLASS_FROM_SOURCE_P (in RECORD_TYPE).
64 4: CLASS_P (in RECORD_TYPE).
65 5: CLASS_FROM_CURRENTLY_COMPILED_SOURCE_P (in RECORD_TYPE)
66 6: CLASS_HAS_FINIT_P (in RECORD_TYPE)
68 Usage of DECL_LANG_FLAG_?:
69 0: METHOD_DEPRECATED (in FUNCTION_DECL).
70 FIELD_DEPRECATED (in FIELD_DECL).
71 CLASS_DEPRECATED (in TYPE_DECL).
72 1: METHOD_PUBLIC (in FUNCTION_DECL).
73 FIELD_PUBLIC (in FIELD_DECL).
74 CLASS_PUBLIC (in TYPE_DECL).
75 2: METHOD_STATIC (in FUNCTION_DECL).
76 (But note that FIELD_STATIC uses TREE_STATIC!)
77 CLASS_COMPLETE_P (in TYPE_DECL)
78 3: METHOD_FINAL (in FUNCTION_DECL)
79 FIELD_FINAL (in FIELD_DECL)
80 CLASS_FINAL (in TYPE_DECL)
81 4: METHOD_SYNCHRONIZED (in FUNCTION_DECL).
82 LABEL_IN_SUBR (in LABEL_DECL)
83 CLASS_INTERFACE (in TYPE_DECL)
84 FIELD_VOLATILE (int FIELD_DECL)
85 5: METHOD_ABSTRACT (in FUNCTION_DECL).
86 LABEL_IS_SUBR_START (in LABEL_DECL)
87 CLASS_ABSTRACT (in TYPE_DECL)
88 FIELD_TRANSIENT (in FIELD_DECL)
89 6: METHOD_TRANSIENT (in FUNCTION_DECL)
90 LABEL_CHANGED (in LABEL_DECL)
91 CLASS_SUPER (in TYPE_DECL, ACC_SUPER flag)
92 INITIALIZED_P (in FIELD_DECL, VAR_DECL, PARM_DECL)
93 7: DECL_CONSTRUCTOR_P (in FUNCTION_DECL).
96 /* True if the class whose TYPE_BINFO this is has a superclass.
97 (True of all classes except Object.) */
98 #define CLASS_HAS_SUPER_FLAG(BINFO) TREE_LANG_FLAG_1(BINFO)
99 #define CLASS_HAS_SUPER(TYPE) CLASS_HAS_SUPER_FLAG (TYPE_BINFO (TYPE))
101 /* Return the supertype of class TYPE, or NULL_TREE is it has none. */
102 #define CLASSTYPE_SUPER(TYPE) (CLASS_HAS_SUPER (TYPE) ? \
103 BINFO_TYPE (TREE_VEC_ELT (TYPE_BINFO_BASETYPES (TYPE), 0)) : NULL_TREE)
105 /* True if the class we are compiling is a .java source file;
106 false if it is a .class bytecode file. */
107 extern int compiling_from_source;
109 /* The class defined by the actual (main) file we are compiling. */
110 extern tree main_class;
112 /* The class we are currently processing. */
113 extern tree current_class;
115 /* Nonzero if we want to automatically do array bounds checking;
116 on by default. Use -fno-bounds-check to disable. */
118 extern int flag_bounds_check;
120 /* Nonzero if we should make is_compiled_class always return 1 for
121 appropriate classes that we're referencing. */
123 extern int flag_assume_compiled;
125 extern int flag_emit_class_files;
127 /* Turned to 1 if -Wall was encountered. See lang.c for their meanings. */
128 extern int flag_wall;
129 extern int flag_redundant;
130 extern int flag_not_overriding;
131 extern int flag_static_local_jdk1_1;
133 /* The Java .class file that provides main_class; the main input file. */
134 extern struct JCF main_jcf[1], *current_jcf;
136 typedef struct CPool constant_pool;
138 #define CONSTANT_ResolvedFlag 16
140 /* The cpool->data[i] for a ResolvedString points to a STRING_CST. */
141 #define CONSTANT_ResolvedString (CONSTANT_String+CONSTANT_ResolvedFlag)
143 /* The cpool->data[i] for a ResolvedClass points to a RECORD_TYPE. */
144 #define CONSTANT_ResolvedClass (CONSTANT_Class+CONSTANT_ResolvedFlag)
146 #define CPOOL_UTF(CPOOL, INDEX) ((tree) (CPOOL)->data[INDEX])
148 /* A NameAndType constant is represented as a TREE_LIST.
149 The type is the signature string (as an IDENTIFIER_NODE). */
151 #define NAME_AND_TYPE_NAME(CPOOL, IDX) \
152 CPOOL_UTF(CPOOL, CPOOL_USHORT1(CPOOL, IDX))
153 #define NAME_AND_TYPE_SIGNATURE(CPOOL, IDX) \
154 CPOOL_UTF(CPOOL, CPOOL_USHORT2(CPOOL, IDX))
156 /* A FieldRef, MethodRef or InterfaceMethodRef constant
157 is represented as a TREE_LIST. */
159 #define COMPONENT_REF_CLASS_INDEX(CPOOL, IDX) CPOOL_USHORT1(CPOOL, IDX)
160 #define COMPONENT_REF_NAME_AND_TYPE(CPOOL, IDX) CPOOL_USHORT2(CPOOL, IDX)
161 #define COMPONENT_REF_NAME(CPOOL, IDX) \
162 NAME_AND_TYPE_NAME (CPOOL, COMPONENT_REF_NAME_AND_TYPE(CPOOL, IDX))
163 #define COMPONENT_REF_SIGNATURE(CPOOL, IDX) \
164 NAME_AND_TYPE_SIGNATURE (CPOOL, COMPONENT_REF_NAME_AND_TYPE(CPOOL, IDX))
166 /* "Promoted types" that are used for primitive types smaller
167 than int. We could use int_type_node, but then we would lose
168 type information (such as needed for debugging). */
169 extern tree promoted_byte_type_node;
170 extern tree promoted_short_type_node;
171 extern tree promoted_char_type_node;
172 extern tree promoted_boolean_type_node;
174 extern tree byte_type_node;
175 extern tree short_type_node;
176 extern tree int_type_node;
177 extern tree long_type_node;
179 extern tree unsigned_byte_type_node;
180 extern tree unsigned_short_type_node;
181 extern tree unsigned_int_type_node;
182 extern tree unsigned_long_type_node;
184 extern tree boolean_type_node;
185 extern tree char_type_node;
186 extern tree float_type_node;
187 extern tree double_type_node;
189 extern tree object_type_node;
190 extern tree unqualified_object_id_node;
191 extern tree object_ptr_type_node;
192 extern tree string_type_node;
193 extern tree throwable_type_node;
194 extern tree runtime_exception_type_node;
195 extern tree error_exception_type_node;
197 extern tree byte_array_type_node;
198 extern tree short_array_type_node;
199 extern tree int_array_type_node;
200 extern tree long_array_type_node;
201 extern tree boolean_array_type_node;
202 extern tree char_array_type_node;
203 extern tree double_array_type_node;
204 extern tree float_array_type_node;
205 extern tree array_array_type_node;
206 extern tree object_array_type_node;
207 extern tree string_array_type_node;
208 extern tree TYPE_identifier_node; /* "TYPE" */
209 extern tree init_identifier_node; /* "<init>" */
210 extern tree clinit_identifier_node; /* "<clinit>" */
211 extern tree finit_identifier_node; /* "<finit>" */
212 extern tree void_signature_node; /* "()V" */
213 extern tree length_identifier_node; /* "length" */
214 extern tree this_identifier_node; /* "this" */
215 extern tree super_identifier_node; /* "super" */
216 extern tree one_elt_array_domain_type;
217 extern tree void_type_node;
218 extern tree ptr_type_node;
219 /* The type of the return address of a subroutine. */
220 extern tree return_address_type_node;
222 /* Nodes for boolean constants TRUE and FALSE. */
223 extern tree boolean_true_node, boolean_false_node;
225 /* Integer constants not declared in tree.h. */
226 extern tree integer_negative_one_node;
227 extern tree integer_two_node;
228 extern tree integer_four_node;
229 extern tree empty_stmt_node;
231 /* The type for struct methodtable. */
232 extern tree methodtable_type;
233 extern tree methodtable_ptr_type;
235 extern tree utf8const_type;
236 extern tree utf8const_ptr_type;
238 extern tree class_type_node;
239 extern tree class_ptr_type;
240 extern tree field_type_node;
241 extern tree constants_type_node;
242 extern tree dtable_type, dtable_ptr_type;
243 extern tree field_ptr_type_node;
244 extern tree field_info_union_node;
245 extern tree method_type_node;
246 extern tree method_ptr_type_node;
247 #define nativecode_ptr_type_node ptr_type_node
249 /* References to internal libjava functions we use. */
250 extern tree alloc_object_node;
251 extern tree soft_instanceof_node;
252 extern tree soft_checkcast_node;
253 extern tree soft_initclass_node;
254 extern tree soft_newarray_node;
255 extern tree soft_anewarray_node;
256 extern tree soft_multianewarray_node;
257 extern tree soft_badarrayindex_node;
258 extern tree throw_node;
259 extern tree soft_checkarraystore_node;
260 extern tree soft_monitorenter_node;
261 extern tree soft_monitorexit_node;
262 extern tree soft_lookupinterfacemethod_node;
263 extern tree soft_fmod_node;
264 extern tree soft_exceptioninfo_call_node;
266 extern tree access_flags_type_node;
268 extern tree class_dtable_decl;
270 /* They need to be reset before processing each class */
271 extern struct CPool *outgoing_cpool;
272 extern tree current_constant_pool_data_ref;
274 extern tree wfl_operator;
276 struct lang_identifier
278 struct tree_identifier ignore;
279 tree global_value, local_value;
281 /* If non-NULL: An ADDR_REF to a VAR_DECL that contains
282 * the Utf8Const representation of the identifier. */
286 /* Macros for access to language-specific slots in an identifier. */
287 /* UNless specifide, each of these slots contains a DECL node or null. */
289 /* This represents the value which the identifier has in the
290 file-scope namespace. */
291 #define IDENTIFIER_GLOBAL_VALUE(NODE) \
292 (((struct lang_identifier *)(NODE))->global_value)
293 /* This represents the value which the identifier has in the current
295 #define IDENTIFIER_LOCAL_VALUE(NODE) \
296 (((struct lang_identifier *)(NODE))->local_value)
298 /* Given an identifier NODE, get the corresponding (non-handle) class.
299 For get_identifier ("java.lang.Number"), the result is
300 the struct whose DECL_ASSEMBLER_NAME is "Classjava_lang_Number". */
301 #define IDENTIFIER_CLASS_VALUE(NODE) IDENTIFIER_GLOBAL_VALUE(NODE)
303 /* Given an identifier NODE, get the corresponding handle class.
304 For get_identifier ("java.lang.Number"), the result is
305 the struct whose DECL_ASSEMBLER_NAME is "Hjava_lang_Number". */
306 #define IDENTIFIER_HANDLECLASS_VALUE(NODE) ???
308 /* Given a signature of a reference (or array) type, or a method, return the
309 corresponding type (if one has been allocated).
310 Do not use for primitive types, since they may be ambiguous.
311 (E.g. is "I" a signature or a class name?) */
312 #define IDENTIFIER_SIGNATURE_TYPE(NODE) IDENTIFIER_GLOBAL_VALUE(NODE)
314 /* If non-NULL: An ADDR_REF to a VAR_DECL that contains
315 the Utf8Const representation of the identifier. */
316 #define IDENTIFIER_UTF8_REF(NODE) \
317 (((struct lang_identifier *)(NODE))->utf8_ref)
319 #define IDENTIFIER_UTF8_DECL(NODE) \
320 TREE_OPERAND((((struct lang_identifier *)(NODE))->utf8_ref), 0)
322 /* For a FUNCTION_DECL, if we are compiling a .class file, then this is
323 the position in the .class file of the method code.
324 Specifically, this is the code itself, not the code attribute. */
325 #define DECL_CODE_OFFSET(DECL) (DECL_LANG_SPECIFIC(DECL)->code_offset)
326 /* Similarly, the length of the bytecode. */
327 #define DECL_CODE_LENGTH(DECL) (DECL_LANG_SPECIFIC(DECL)->code_length)
328 /* Similarly, the position of the LineNumberTable attribute. */
329 #define DECL_LINENUMBERS_OFFSET(DECL) \
330 (DECL_LANG_SPECIFIC(DECL)->linenumbers_offset)
331 /* Similarly, the position of the LocalVariableTable attribute
332 (following the standard attribute header). */
333 #define DECL_LOCALVARIABLES_OFFSET(DECL) \
334 (DECL_LANG_SPECIFIC(DECL)->localvariables_offset)
336 #define DECL_MAX_LOCALS(DECL) (DECL_LANG_SPECIFIC(DECL)->max_locals)
337 #define DECL_MAX_STACK(DECL) (DECL_LANG_SPECIFIC(DECL)->max_stack)
338 /* Number of local variable slots needed for the arguments of this function. */
339 #define DECL_ARG_SLOT_COUNT(DECL) (DECL_LANG_SPECIFIC(DECL)->arg_slot_count)
340 /* List of checked thrown exceptions, as specified with the `throws'
342 #define DECL_FUNCTION_THROWS(DECL) (DECL_LANG_SPECIFIC(DECL)->throws_list)
343 /* List of other constructors of the same class that this constructor
345 #define DECL_CONSTRUCTOR_CALLS(DECL) \
346 (DECL_LANG_SPECIFIC(DECL)->called_constructor)
347 /* Pointer to the function's current's COMPOUND_EXPR tree (while
348 completing its body) or the function's block */
349 #define DECL_FUNCTION_BODY(DECL) (DECL_LANG_SPECIFIC(DECL)->function_decl_body)
350 /* How specific the function is (for method selection - Java source
352 #define DECL_SPECIFIC_COUNT(DECL) DECL_ARG_SLOT_COUNT(DECL)
354 /* In a LABEL_DECL, a TREE_VEC that saves the type_map at that point. */
355 #define LABEL_TYPE_STATE(NODE) (DECL_INITIAL (NODE))
357 /* In the label of a subroutine, a dummy label that records the
358 state following a merge of all the ret instructions in this subroutine. */
359 #define LABEL_RETURN_LABEL(DECL) DECL_ARGUMENTS(DECL)
361 /* In the label of a sub-routine, records the type state at return.
362 * A local may be TYPE_UNUSED, which means that the local is not
363 * used (stored to or loaded from) in this subroutine - at least for
364 * code that we have verified so far. */
365 #define LABEL_RETURN_TYPE_STATE(NODE) LABEL_TYPE_STATE (LABEL_RETURN_LABEL (NODE))
367 /* In a TREE_VEC for a LABEL_RETURN_TYPE_STATE, notes that
368 TREE_VEC_LENGTH has been adjust to the correct stack size. */
369 #define RETURN_MAP_ADJUSTED(NODE) TREE_LANG_FLAG_2(NODE)
371 /* In the label of a sub-routine, a chain of the return location labels. */
372 #define LABEL_RETURN_LABELS(node) DECL_RESULT (LABEL_RETURN_LABEL(node))
374 /* In a LABEL_DECL, the next pending label.
375 See pending_blocks in expr.c. */
376 #define LABEL_PENDING_CHAIN(NODE) DECL_RESULT(NODE)
378 /* In a LABEL_DECL, the corresponding bytecode program counter. */
379 #define LABEL_PC(NODE) ((NODE)->decl.saved_insns.i)
381 /* Used during verification to mark the label has "changed". (See JVM Spec). */
382 #define LABEL_CHANGED(NODE) DECL_LANG_FLAG_6(NODE)
384 /* In a LABEL_DECL, true if we have verified instructions starting here. */
385 #define LABEL_VERIFIED(NODE) (instruction_bits[LABEL_PC(NODE)]&BCODE_VERIFIED)
387 /* True if this code is within a subroutine (target of a jsr). */
388 #define LABEL_IN_SUBR(NODE) DECL_LANG_FLAG_4(NODE)
389 /* True if this code is the start of a subroutine (target of a jsr). */
390 #define LABEL_IS_SUBR_START(NODE) DECL_LANG_FLAG_5(NODE)
392 /* In a LABEL_DECL, if LABEL_IN_SUBR(NODE), points to start of subroutine. */
393 #define LABEL_SUBR_START(NODE) DECL_ABSTRACT_ORIGIN(NODE)
395 /* In a LABEL_DECL that has LABEL_IS_SUBR_START, this points to the start
396 of surrounding subroutine in the case of a nested subroutine,
397 and NULL_TREE otherwise. */
398 #define LABEL_SUBR_CONTEXT(NODE) DECL_CONTEXT (LABEL_RETURN_LABEL (NODE))
400 /* The slot number for this local variable. */
401 #define DECL_LOCAL_SLOT_NUMBER(NODE) \
402 (((struct lang_decl_var*)DECL_LANG_SPECIFIC(NODE))->slot_number)
403 /* The start (bytecode) pc for the valid range of this local variable. */
404 #define DECL_LOCAL_START_PC(NODE) \
405 (((struct lang_decl_var*)DECL_LANG_SPECIFIC(NODE))->start_pc)
406 /* The end (bytecode) pc for the valid range of this local variable. */
407 #define DECL_LOCAL_END_PC(NODE) \
408 (((struct lang_decl_var*)DECL_LANG_SPECIFIC(NODE))->end_pc)
409 /* For a VAR_DECLor PARM_DECL, used to chain decls with the same
410 slot_number in decl_map. */
411 #define DECL_LOCAL_SLOT_CHAIN(NODE) \
412 (((struct lang_decl_var*)DECL_LANG_SPECIFIC(NODE))->slot_chain)
413 /* For a static field seen from the parser, it holds its associated
414 value, the one returned when the field is looked up. */
415 #define DECL_LOCAL_STATIC_VALUE(NODE) DECL_LOCAL_SLOT_CHAIN (NODE)
417 /* DECL_LANG_SPECIFIC for FUNCTION_DECLs. */
420 /* tree chain; not yet used. */
423 long linenumbers_offset;
424 long localvariables_offset;
426 int max_locals, max_stack, arg_slot_count;
427 tree throws_list; /* Exception specified by `throws' */
428 tree function_decl_body; /* Hold all function's statements */
429 tree called_constructor; /* When decl is a constructor, the
430 list of other constructor it calls. */
433 /* DECL_LANG_SPECIFIC for VAR_DECL and PARM_DECL. */
448 #ifdef JAVA_USE_HANDLES
449 /* TYPE_BINFO_HANDLE points from a handle-class to its corresponding
450 non-handle-class, and vice verse. */
452 #define BINFO_HANDLE(NODE) TREE_VEC_ELT ((NODE), 6)
454 /* Given a RECORD_TYPE for a handle type, return the corresponding class. */
455 #define HANDLE_TO_CLASS_TYPE(HTYPE) BINFO_HANDLE (TYPE_BINFO (HTYPE))
457 /* Given a RECORD_TYPE for a class, return the corresponding handle type. */
458 #define CLASS_TO_HANDLE_TYPE(TYPE) BINFO_HANDLE (TYPE_BINFO (TYPE))
460 #define HANDLE_TO_CLASS_TYPE(HTYPE) (HTYPE)
461 #define CLASS_TO_HANDLE_TYPE(TYPE) (TYPE)
464 #define JCF_u4 unsigned long
465 #define JCF_u2 unsigned short
467 extern tree lookup_class PROTO ((tree));
468 extern tree lookup_java_constructor PROTO ((tree, tree));
469 extern tree lookup_java_method PROTO ((tree, tree, tree));
470 extern tree lookup_argument_method PROTO ((tree, tree, tree));
471 extern tree promote_type PROTO ((tree));
472 extern tree get_constant PROTO ((struct JCF*, int));
473 extern tree get_name_constant PROTO ((struct JCF*, int));
474 extern tree get_class_constant PROTO ((struct JCF*, int));
475 extern tree parse_signature PROTO ((struct JCF *jcf, int sig_index));
476 extern void jcf_parse PROTO ((struct JCF*));
477 extern tree add_field PROTO ((tree, tree, tree, int));
478 extern tree add_method PROTO ((tree, int, tree, tree));
479 extern tree add_method_1 PROTO ((tree, int, tree, tree));
480 extern tree make_class ();
481 extern tree push_class PROTO ((tree, tree));
482 extern tree unmangle_classname PROTO ((const char *name, int name_length));
483 extern tree parse_signature_string PROTO ((const unsigned char *, int));
484 extern tree get_type_from_signature PROTO ((tree));
485 extern void layout_class PROTO ((tree));
486 extern tree make_class ();
487 extern tree build_class_ref PROTO ((tree));
488 extern tree build_dtable_decl PROTO ((tree));
489 extern tree build_internal_class_name PROTO ((tree));
490 extern tree build_constants_constructor ();
491 extern tree build_ref_from_constant_pool PROTO ((int));
492 extern tree build_utf8_ref PROTO ((tree));
493 extern tree ident_subst PROTO ((const char*, int,
494 const char*, int, int, const char*));
495 extern tree identifier_subst PROTO ((const tree,
496 const char *, int, int, const char *));
497 extern tree build_java_signature PROTO ((tree));
498 extern tree build_java_argument_signature PROTO ((tree));
499 extern void set_java_signature PROTO ((tree, tree));
500 extern tree build_static_field_ref PROTO ((tree));
501 extern tree build_address_of PROTO ((tree));
502 extern tree find_local_variable PROTO ((int index, tree type, int pc));
503 extern tree find_stack_slot PROTO ((int index, tree type));
504 extern tree build_prim_array_type PROTO ((tree, HOST_WIDE_INT));
505 extern tree build_java_array_type PROTO ((tree, HOST_WIDE_INT));
506 extern int is_compiled_class PROTO ((tree));
507 extern tree mangled_classname PROTO ((char*, tree));
508 extern tree lookup_label PROTO ((int));
509 extern tree pop_type PROTO ((tree));
510 extern void pop_argument_types PROTO ((tree));
511 extern tree decode_newarray_type PROTO ((int));
512 extern tree lookup_field PROTO ((tree*, tree));
513 extern int is_array_type_p PROTO ((tree));
514 extern HOST_WIDE_INT java_array_type_length PROTO ((tree));
515 extern void load_class PROTO ((tree, int));
517 extern tree lookup_name PROTO ((tree));
518 extern tree build_known_method_ref PROTO ((tree, tree, tree, tree, tree));
519 extern tree build_class_init PROTO ((tree, tree));
520 extern tree build_invokevirtual PROTO ((tree, tree));
521 extern tree build_invokeinterface PROTO ((tree, tree, tree));
522 extern tree invoke_build_dtable PROTO ((int, tree));
523 extern tree build_field_ref PROTO ((tree, tree, tree));
524 extern void pushdecl_force_head PROTO ((tree));
525 extern tree build_java_binop PROTO ((enum tree_code, tree, tree, tree));
526 extern tree binary_numeric_promotion PROTO ((tree, tree, tree *, tree *));
527 extern tree build_java_arrayaccess PROTO ((tree, tree, tree));
528 extern tree build_newarray PROTO ((int, tree));
529 extern tree build_anewarray PROTO ((tree, tree));
530 extern tree build_java_array_length_access PROTO ((tree));
531 extern tree build_java_arraynull_check PROTO ((tree, tree, tree));
532 extern tree create_label_decl PROTO ((tree));
533 extern void push_labeled_block PROTO ((tree));
534 extern tree prepare_eh_table_type PROTO ((tree));
535 extern void java_set_exception_lang_code PROTO (());
536 extern tree generate_name PROTO ((void));
537 extern void pop_labeled_block PROTO (());
538 extern char *lang_printable_name PROTO ((tree, int));
539 extern tree maybe_add_interface PROTO ((tree, tree));
540 extern void set_super_info PROTO ((int, tree, tree, int));
541 extern int get_access_flags_from_decl PROTO ((tree));
542 extern int interface_of_p PROTO ((tree, tree));
543 extern int inherits_from_p PROTO ((tree, tree));
544 extern void complete_start_java_method PROTO ((tree));
545 extern void emit_handlers PROTO (());
546 extern void init_outgoing_cpool PROTO (());
547 extern void make_class_data PROTO ((tree));
548 extern void register_class PROTO (());
549 extern int alloc_name_constant PROTO ((int, tree));
550 extern void emit_register_classes PROTO (());
551 extern void lang_init_source PROTO ((int));
552 extern void write_classfile PROTO ((tree));
553 extern char *print_int_node PROTO ((tree));
554 extern void parse_error_context VPROTO ((tree cl, char *msg, ...));
555 extern tree build_primtype_type_ref PROTO ((char *));
556 extern tree java_get_real_method_name PROTO ((tree));
558 /* Access flags etc for a method (a FUNCTION_DECL): */
560 #define METHOD_PUBLIC(DECL) DECL_LANG_FLAG_1 (DECL)
561 #define METHOD_PRIVATE(DECL) TREE_PRIVATE (DECL)
562 #define METHOD_PROTECTED(DECL) TREE_PROTECTED (DECL)
563 #define METHOD_STATIC(DECL) DECL_LANG_FLAG_2 (DECL)
564 #define METHOD_FINAL(DECL) DECL_LANG_FLAG_3 (DECL)
565 #define METHOD_SYNCHRONIZED(DECL) DECL_LANG_FLAG_4 (DECL)
566 #define METHOD_NATIVE(DECL) DECL_EXTERNAL(DECL)
567 #define METHOD_ABSTRACT(DECL) DECL_LANG_FLAG_5 (DECL)
568 #define METHOD_TRANSIENT(DECL) DECL_LANG_FLAG_6 (DECL)
570 #define DECL_CONSTRUCTOR_P(DECL) DECL_LANG_FLAG_7(DECL)
572 /* Access flags etc for a variable/field (a FIELD_DECL): */
574 #define FIELD_PRIVATE(DECL) TREE_PRIVATE (DECL)
575 #define FIELD_PROTECTED(DECL) TREE_PROTECTED (DECL)
576 #define FIELD_PUBLIC(DECL) DECL_LANG_FLAG_1 (DECL)
577 #define FIELD_STATIC(DECL) TREE_STATIC (DECL)
578 #define FIELD_FINAL(DECL) DECL_LANG_FLAG_3 (DECL)
579 #define FIELD_VOLATILE(DECL) DECL_LANG_FLAG_4 (DECL)
580 #define FIELD_TRANSIENT(DECL) DECL_LANG_FLAG_5 (DECL)
582 /* Initialized flag on variable/field/parm decl */
584 #define INITIALIZED_P(DECL) DECL_LANG_FLAG_6 (DECL)
586 /* Access flags etc for a class (a TYPE_DECL): */
588 #define CLASS_PUBLIC(DECL) DECL_LANG_FLAG_1 (DECL)
589 #define CLASS_FINAL(DECL) DECL_LANG_FLAG_3 (DECL)
590 #define CLASS_INTERFACE(DECL) DECL_LANG_FLAG_4 (DECL)
591 #define CLASS_ABSTRACT(DECL) DECL_LANG_FLAG_5 (DECL)
592 #define CLASS_SUPER(DECL) DECL_LANG_FLAG_6 (DECL)
594 /* @deprecated marker flag on methods, fields and classes */
596 #define METHOD_DEPRECATED(DECL) DECL_LANG_FLAG_0 (DECL)
597 #define FIELD_DEPRECATED(DECL) DECL_LANG_FLAG_0 (DECL)
598 #define CLASS_DEPRECATED(DECL) DECL_LANG_FLAG_0 (DECL)
599 #define DECL_DEPRECATED(DECL) DECL_LANG_FLAG_0 (DECL)
601 /* The number of virtual methods in this class's dispatch table.
602 Does not include initial two dummy entries (one points to the
603 Class object, and the other is for G++ -fvtable-thunks compatibility). */
604 #define TYPE_NVIRTUALS(TYPE) TYPE_BINFO_VIRTUALS (TYPE)
606 /* A TREE_VEC (indexed by DECL_VINDEX) containing this class's
608 #define TYPE_VTABLE(TYPE) TYPE_BINFO_VTABLE(TYPE)
610 /* Use CLASS_LOADED_P? FIXME */
611 #define CLASS_COMPLETE_P(DECL) DECL_LANG_FLAG_2 (DECL)
613 /* This maps a bytecode offset (PC) to various flags,
614 listed below (starting with BCODE_). */
615 extern char *instruction_bits;
617 /* True iff the byte is the start of an instruction. */
618 #define BCODE_INSTRUCTION_START 1
620 /* True iff there is a jump to this location. */
621 #define BCODE_JUMP_TARGET 2
623 /* True iff there is a return to this location.
624 (I.e. the preceedng instruction was a call.) */
625 #define BCODE_RETURN_TARGET 4
627 /* True iff this is the start of an exception handler. */
628 #define BCODE_EXCEPTION_TARGET 16
630 /* True iff there is a jump to this location (and it needs a label). */
631 #define BCODE_TARGET \
632 (BCODE_JUMP_TARGET|BCODE_RETURN_TARGET \
633 | BCODE_EXCEPTION_TARGET)
635 /* True iff there is an entry in the linenumber table for this location. */
636 #define BCODE_HAS_LINENUMBER 32
638 /* True iff there is more than one entry in the linenumber table for
639 this location. (This probably does not make much sense.) */
640 #define BCODE_HAS_MULTI_LINENUMBERS 64
642 /* True if this instruction has been verified. */
643 #define BCODE_VERIFIED 8
645 /* A pointer to the line number table of the current method. */
646 extern unsigned char *linenumber_table;
647 /* The length (in items) of the line number table. */
648 extern int linenumber_count;
650 /* In type_map, means that slot is uninitialized or otherwise unusable. */
651 #define TYPE_UNKNOWN NULL_TREE
653 /* In type_map, means the second half of a 64-bit double or long. */
654 #define TYPE_SECOND void_type_node
656 /* In type_map, means the null type (i.e. type of a null reference). */
657 #define TYPE_NULL ptr_type_node
659 /* In a type map means the type the address subroutine return address. */
660 #define TYPE_RETURN_ADDR return_address_type_node
662 /* In a subroutine's return type map, indicates that the slot was neither
663 used nor set in the subroutine. */
664 #define TYPE_UNUSED error_mark_node
666 /* A array mapping variable/stack slot index to the type current
667 in that variable/stack slot.
668 TYPE_UNKNOWN, TYPE_SECOND, and TYPE_NULL are special cases. */
669 extern tree *type_map;
671 /* Map a stack index to the type currently in that slot. */
672 #define stack_type_map (type_map+DECL_MAX_LOCALS(current_function_decl))
674 /* True iff TYPE takes two variable/stack slots. */
675 #define TYPE_IS_WIDE(TYPE) \
676 ((TYPE) == double_type_node || (TYPE) == long_type_node)
678 /* True iff TYPE is a Java array type. */
679 #define TYPE_ARRAY_P(TYPE) TYPE_LANG_FLAG_1 (TYPE)
681 /* If FUNCTION_TYPE or METHOD_TYPE: cache for build_java_argument_signature. */
682 #define TYPE_ARGUMENT_SIGNATURE(TYPE) TYPE_VFIELD(TYPE)
684 /* Given an array type, give the type of the elements. */
685 /* FIXME this use of TREE_TYPE conflicts with something or other. */
686 #define TYPE_ARRAY_ELEMENT(ATYPE) TREE_TYPE(ATYPE)
688 /* True if class TYPE has been loaded. */
689 #define CLASS_LOADED_P(TYPE) TYPE_LANG_FLAG_2 (TYPE)
691 /* True if class TYPE was defined in Java source code. */
692 #define CLASS_FROM_SOURCE_P(TYPE) TYPE_LANG_FLAG_3 (TYPE)
694 /* True of a RECORD_TYPE of a class/interface type (not array type) */
695 #define CLASS_P(TYPE) TYPE_LANG_FLAG_4 (TYPE)
697 /* True if class TYPE was defined in a Java source file compiled. */
698 #define CLASS_FROM_CURRENTLY_COMPILED_SOURCE_P(TYPE) \
699 TYPE_LANG_FLAG_5 (TYPE)
701 /* True if class TYPE has a field initializer <finit> function */
702 #define CLASS_HAS_FINIT_P(TYPE) TYPE_LANG_FLAG_6 (TYPE)
704 /* True if identifier ID was seen while processing a single type import stmt */
705 #define IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P(ID) TREE_LANG_FLAG_0 (ID)
707 /* True if identifier ID was seen while processing an import statement */
708 #define IS_A_CLASSFILE_NAME(ID) TREE_LANG_FLAG_1 (ID)
710 /* True if ID is a qualified named (contains . or /) */
711 #define QUALIFIED_P(ID) TREE_LANG_FLAG_2 (ID)
713 /* True if ID is an already processed import on demand */
714 #define IS_AN_IMPORT_ON_DEMAND_P(ID) TREE_LANG_FLAG_3 (ID)
716 /* True if ID is a command-line specified filename */
717 #define IS_A_COMMAND_LINE_FILENAME_P(ID) TREE_LANG_FLAG_4 (ID)
719 /* True if filename ID has already been parsed */
720 #define HAS_BEEN_ALREADY_PARSED_P(ID) TREE_LANG_FLAG_5 (ID)
722 /* True if EXPR is RHS sub-tree of a compound assign expression */
723 #define COMPOUND_ASSIGN_P(EXPR) TREE_LANG_FLAG_1 (EXPR)
725 /* True if a SWITCH_EXPR has a DEFAULT_EXPR. */
726 #define SWITCH_HAS_DEFAULT(NODE) TREE_LANG_FLAG_3 (NODE)
728 /* True if EXPR (a WFL in that case) was created after the
729 reduction of PRIMARY . XXX */
730 #define PRIMARY_P(EXPR) TREE_LANG_FLAG_2 (EXPR)
732 /* True if EXPR (a MODIFY_EXPR in that case) is the result of variable
733 initialization during its declaration */
734 #define MODIFY_EXPR_FROM_INITIALIZATION_P(EXPR) TREE_LANG_FLAG_2 (EXPR)
736 /* True if EXPR (a WFL in that case) resolves into an expression name */
737 #define RESOLVE_EXPRESSION_NAME_P(WFL) TREE_LANG_FLAG_0 (WFL)
739 /* True if EXPR (a LOOP_EXPR in that case) is part of a for statement */
740 #define IS_FOR_LOOP_P(EXPR) TREE_LANG_FLAG_0 (EXPR)
742 /* True if EXPR (a WFL in that case) resolves into a package name */
743 #define RESOLVE_PACKAGE_NAME_P(WFL) TREE_LANG_FLAG_3 (WFL)
745 /* True if EXPR (a WFL in that case) resolves into a type name */
746 #define RESOLVE_TYPE_NAME_P(WFL) TREE_LANG_FLAG_4 (WFL)
748 /* True if STMT (a WFL in that case) holds a BREAK statement */
749 #define IS_BREAK_STMT_P(WFL) TREE_LANG_FLAG_5 (WFL)
751 /* True if EXPR (a CALL_EXPR in that case) is a crafted StringBuffer */
752 #define IS_CRAFTED_STRING_BUFFER_P(EXPR) TREE_LANG_FLAG_5 (EXPR)
754 /* True if NODE (a statement) can complete normally. */
755 #define CAN_COMPLETE_NORMALLY(NODE) TREE_LANG_FLAG_6(NODE)
757 /* Add a FIELD_DECL to RECORD_TYPE RTYPE.
758 The field has name NAME (a char*), and type FTYPE.
759 Unless this is the first field, FIELD most hold the previous field.
760 FIELD is set to the newly created FIELD_DECL.
762 We set DECL_ARTIFICIAL so these fields get skipped by make_class_data
763 if compiling java.lang.Object or java.lang.Class. */
765 #define PUSH_FIELD(RTYPE, FIELD, NAME, FTYPE) \
766 { tree tmp_field = build_decl (FIELD_DECL, get_identifier(NAME), FTYPE); \
767 if (TYPE_FIELDS (RTYPE) == NULL_TREE) TYPE_FIELDS (RTYPE) = tmp_field; \
768 else TREE_CHAIN(FIELD) = tmp_field; \
769 DECL_CONTEXT (tmp_field) = RTYPE; \
770 DECL_ARTIFICIAL (tmp_field) = 1; \
773 #define FINISH_RECORD(RTYPE) layout_type (RTYPE)
775 /* Start building a RECORD_TYPE constructor with a given TYPE in CONS. */
776 #define START_RECORD_CONSTRUCTOR(CONS, CTYPE) { \
777 CONS = build (CONSTRUCTOR, CTYPE, NULL_TREE, NULL_TREE);\
778 TREE_CHAIN(CONS) = TYPE_FIELDS (CTYPE); }
780 /* Append a field initializer to CONS for the dummy field for the inherited
781 fields. The dummy field has the given VALUE, and the same type as the
782 super-class. Must be specified before calls to PUSH_FIELD_VALUE. */
784 #define PUSH_SUPER_VALUE(CONS, VALUE) {\
785 tree field = TREE_CHAIN(CONS);\
786 if (DECL_NAME (field) != NULL_TREE) abort();\
787 CONSTRUCTOR_ELTS(CONS) = tree_cons (field, VALUE, CONSTRUCTOR_ELTS(CONS));\
788 TREE_CHAIN(CONS) = TREE_CHAIN (field); }
790 /* Append a field initializer to CONS for a field with the given VALUE.
791 NAME is a char* string used for error checking;
792 the initializer must be specified in order. */
793 #define PUSH_FIELD_VALUE(CONS, NAME, VALUE) {\
794 tree field = TREE_CHAIN(CONS);\
795 if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), NAME) != 0) abort();\
796 CONSTRUCTOR_ELTS(CONS) = tree_cons (field, VALUE, CONSTRUCTOR_ELTS(CONS));\
797 TREE_CHAIN(CONS) = TREE_CHAIN (field); }
799 /* Finish creating a record CONSTRUCTOR CONS. */
800 #define FINISH_RECORD_CONSTRUCTOR(CONS) \
801 CONSTRUCTOR_ELTS(CONS) = nreverse (CONSTRUCTOR_ELTS(CONS))
803 /* Macros on constructors invocations. */
804 #define CALL_CONSTRUCTOR_P(NODE) \
805 (TREE_CODE (NODE) == NEW_CLASS_EXPR || CALL_EXPLICIT_CONSTRUCTOR_P (NODE))
807 #define CALL_EXPLICIT_CONSTRUCTOR_P(NODE) \
808 (CALL_THIS_CONSTRUCTOR_P (NODE) || CALL_SUPER_CONSTRUCTOR_P (NODE))
810 #define CALL_THIS_CONSTRUCTOR_P(NODE) \
811 (TREE_CODE (NODE) == CALL_EXPR \
812 && EXPR_WFL_NODE (TREE_OPERAND (NODE, 0)) == this_identifier_node)
814 #define CALL_SUPER_CONSTRUCTOR_P(NODE) \
815 (TREE_CODE (NODE) == CALL_EXPR \
816 && EXPR_WFL_NODE (TREE_OPERAND (NODE, 0)) == super_identifier_node)
818 /* Using a FINALLY_EXPR node */
819 #define FINALLY_EXPR_LABEL(NODE) TREE_OPERAND ((NODE), 0)
820 #define FINALLY_EXPR_BLOCK(NODE) TREE_OPERAND ((NODE), 1)
822 /* Using a CATCH_EXPR node */
823 #define CATCH_EXPR_GET_EXPR(NODE, V) (V ? LABELED_BLOCK_BODY (NODE) : (NODE))
825 /* Non zero if TYPE is an unchecked exception */
826 #define IS_UNCHECKED_EXCEPTION_P(TYPE) \
827 (inherits_from_p ((TYPE), runtime_exception_type_node) \
828 || inherits_from_p ((TYPE), error_exception_type_node))
830 /* Make the current function where this macro is invoked report error
831 messages and and return, if any */
832 #define java_parse_abort_on_error() \
834 extern int java_error_count; \
835 if (java_error_count) \