1 /* Language parser definitions for the GNU compiler for the Java(TM) language.
2 Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
3 Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com)
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. */
31 /* Extern global variable declarations */
32 extern int java_error_count;
33 extern struct obstack temporary_obstack;
34 extern struct obstack permanent_obstack;
35 extern int quiet_flag;
38 /* Function extern to java/ */
39 extern int int_fits_type_p PROTO ((tree, tree));
40 extern tree stabilize_reference PROTO ((tree));
43 /* Macros for verbose debug info */
44 #ifdef VERBOSE_SKELETON
45 #define RULE( rule ) printf ( "jv_yacc:%d: rule %s\n", lineno, rule )
50 #ifdef VERBOSE_SKELETON
51 #undef SOURCE_FRONTEND_DEBUG
52 #define SOURCE_FRONTEND_DEBUG(X) \
53 {if (!quiet_flag) {printf ("* "); printf X; putchar ('\n');} }
55 #define SOURCE_FRONTEND_DEBUG(X)
58 /* Macro for error recovering */
61 { if (!quiet_flag) {printf ("** Recovered\n");} }
62 #define DRECOVERED(s) \
63 { if (!quiet_flag) {printf ("** Recovered (%s)\n", #s);}}
69 #define DRECOVER(s) {yyerrok; DRECOVERED(s)}
70 #define RECOVER {yyerrok; RECOVERED}
72 #define YYERROR_NOW ctxp->java_error_flag = 1
73 #define YYNOT_TWICE if (ctxp->prevent_ese != lineno)
75 /* Accepted modifiers */
76 #define CLASS_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT|ACC_FINAL
77 #define FIELD_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_FINAL| \
78 ACC_STATIC|ACC_TRANSIENT|ACC_VOLATILE
79 #define METHOD_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_ABSTRACT| \
80 ACC_STATIC|ACC_FINAL|ACC_SYNCHRONIZED|ACC_NATIVE
81 #define INTERFACE_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT
82 #define INTERFACE_METHOD_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT
83 #define INTERFACE_FIELD_MODIFIERS ACC_PUBLIC|ACC_STATIC|ACC_FINAL
85 /* Getting a modifier WFL */
86 #define MODIFIER_WFL(M) (ctxp->modifier_ctx [(M) - PUBLIC_TK])
88 /* Check on modifiers */
89 #define THIS_MODIFIER_ONLY(f, m, v, count, l) \
92 tree node = ctxp->modifier_ctx [v]; \
94 && ((EXPR_WFL_COLNO (node) > EXPR_WFL_COLNO (l)) \
95 || (EXPR_WFL_LINENO (node) > EXPR_WFL_LINENO (l)))) \
102 #define ABSTRACT_CHECK(FLAG, V, CL, S) \
104 parse_error_context ((CL), S " method can't be abstract");
106 #define JCONSTRUCTOR_CHECK(FLAG, V, CL, S) \
108 parse_error_context ((CL), "Constructor can't be %s", (S)); \
111 #define exit_java_complete_class() \
117 #define CLASS_OR_INTERFACE(decl, s1, s2) \
119 ((get_access_flags_from_decl (TYPE_NAME (TREE_TYPE (decl))) \
121 s2 : s1) : ((s1 [0]=='S'|| s1 [0]=='s') ? \
122 (s1 [0]=='S' ? "Supertype" : "supertype") : \
123 (s1 [0] > 'A' ? "Type" : "type")))
125 #define GET_REAL_TYPE(TYPE) \
126 (TREE_CODE (TYPE) == TREE_LIST ? TREE_PURPOSE (TYPE) : TYPE)
128 #define GET_METHOD_NAME(METHOD) \
129 (TREE_CODE (DECL_NAME (METHOD)) == EXPR_WITH_FILE_LOCATION ? \
130 EXPR_WFL_NODE (DECL_NAME (METHOD)) : DECL_NAME (METHOD))
132 /* Pedantic warning on obsolete modifiers. Note: when cl is NULL,
133 flags was set artificially, such as for a interface method */
134 #define OBSOLETE_MODIFIER_WARNING(cl, flags, modifier, format, arg) \
136 if (flag_redundant && (cl) && ((flags) & (modifier))) \
137 parse_warning_context (cl, \
138 "Discouraged redundant use of `%s' modifier " \
139 "in declaration of " format, \
140 java_accstring_lookup (modifier), arg); \
143 /* Quickly build a temporary pointer on hypothetical type NAME. */
144 #define BUILD_PTR_FROM_NAME(ptr, name) \
146 ptr = build (POINTER_TYPE, NULL_TREE); \
147 TYPE_NAME (ptr) = name; \
150 #define INCOMPLETE_TYPE_P(NODE) \
151 ((TREE_CODE (NODE) == POINTER_TYPE) \
152 && !TREE_TYPE (NODE) \
153 && TREE_CODE (TYPE_NAME (NODE)) == IDENTIFIER_NODE)
155 /* Set the EMIT_LINE_NOTE flag of a EXPR_WLF to 1 if debug information
156 are requested. Works in the context of a parser rule. */
157 #define JAVA_MAYBE_GENERATE_DEBUG_INFO(node) \
158 (debug_info_level != DINFO_LEVEL_NONE ? \
159 EXPR_WFL_EMIT_LINE_NOTE (node) = 1, node : node)
161 /* Types classification, according to the JLS, section 4.2 */
162 #define JFLOAT_TYPE_P(TYPE) (TYPE && TREE_CODE ((TYPE)) == REAL_TYPE)
163 #define JINTEGRAL_TYPE_P(TYPE) ((TYPE) \
164 && (TREE_CODE ((TYPE)) == INTEGER_TYPE \
165 || TREE_CODE ((TYPE)) == CHAR_TYPE))
166 #define JNUMERIC_TYPE_P(TYPE) ((TYPE) \
167 && (JFLOAT_TYPE_P ((TYPE)) \
168 || JINTEGRAL_TYPE_P ((TYPE))))
169 #define JPRIMITIVE_TYPE_P(TYPE) ((TYPE) \
170 && (JNUMERIC_TYPE_P ((TYPE)) \
171 || TREE_CODE ((TYPE)) == BOOLEAN_TYPE))
173 #define JBSC_TYPE_P(TYPE) ((TYPE) && (((TYPE) == byte_type_node) \
174 || ((TYPE) == short_type_node) \
175 || ((TYPE) == char_type_node)))
177 /* Not defined in the LRM */
178 #define JSTRING_TYPE_P(TYPE) ((TYPE) \
179 && ((TYPE) == string_type_node || \
180 (TREE_CODE (TYPE) == POINTER_TYPE && \
181 TREE_TYPE (TYPE) == string_type_node)))
182 #define JSTRING_P(NODE) ((NODE) \
183 && (TREE_CODE (NODE) == STRING_CST \
184 || IS_CRAFTED_STRING_BUFFER_P (NODE) \
185 || JSTRING_TYPE_P (TREE_TYPE (NODE))))
187 #define JREFERENCE_TYPE_P(TYPE) ((TYPE) \
188 && (TREE_CODE (TYPE) == RECORD_TYPE \
189 || (TREE_CODE (TYPE) == POINTER_TYPE \
190 && TREE_CODE (TREE_TYPE (TYPE)) == \
192 #define JNULLP_TYPE_P(TYPE) ((TYPE) && (TREE_CODE (TYPE) == POINTER_TYPE) \
193 && (TYPE) == TREE_TYPE (null_pointer_node))
195 /* Other predicate */
196 #define JDECL_P(NODE) (NODE && (TREE_CODE (NODE) == PARM_DECL \
197 || TREE_CODE (NODE) == VAR_DECL \
198 || TREE_CODE (NODE) == FIELD_DECL))
200 #define TYPE_INTERFACE_P(TYPE) \
201 (CLASS_P (TYPE) && CLASS_INTERFACE (TYPE_NAME (TYPE)))
203 #define TYPE_CLASS_P(TYPE) (CLASS_P (TYPE) \
204 && !CLASS_INTERFACE (TYPE_NAME (TYPE)) \
205 && !TYPE_ARRAY_P (TYPE))
207 /* Standard error messages */
208 #define ERROR_CANT_CONVERT_TO_BOOLEAN(OPERATOR, NODE, TYPE) \
209 parse_error_context \
210 ((OPERATOR), "Incompatible type for `%s'. Can't convert `%s' to " \
211 "boolean", operator_string ((NODE)), lang_printable_name ((TYPE),0))
213 #define ERROR_CANT_CONVERT_TO_NUMERIC(OPERATOR, NODE, TYPE) \
214 parse_error_context \
215 ((OPERATOR), "Incompatible type for `%s'. Can't convert `%s' to " \
216 "numeric type", operator_string ((NODE)), lang_printable_name ((TYPE), 0))
218 #define ERROR_CAST_NEEDED_TO_INTEGRAL(OPERATOR, NODE, TYPE) \
219 parse_error_context \
220 ((OPERATOR), (JPRIMITIVE_TYPE_P (TYPE) ? \
221 "Incompatible type for `%s'. Explicit cast needed to convert " \
222 "`%s' to integral" : "Incompatible type for `%s'. Can't convert " \
223 "`%s' to integral"), operator_string ((NODE)), \
224 lang_printable_name ((TYPE), 0))
226 #define ERROR_VARIABLE_NOT_INITIALIZED(WFL, V) \
227 parse_error_context \
228 ((WFL), "Variable `%s' may not have been initialized", \
229 IDENTIFIER_POINTER (V))
231 /* Definition for loop handling. This is Java's own definition of a
232 loop body. See parse.y for documentation. It's valid once you hold
233 a loop's body (LOOP_EXPR_BODY) */
235 /* The loop main block is the one hold the condition and the loop body */
236 #define LOOP_EXPR_BODY_MAIN_BLOCK(NODE) TREE_OPERAND (NODE, 0)
237 /* And then there is the loop update block */
238 #define LOOP_EXPR_BODY_UPDATE_BLOCK(NODE) TREE_OPERAND (NODE, 1)
240 /* Inside the loop main block, there is the loop condition and the
241 loop body. They may be reversed if the loop being described is a
242 do-while loop. NOTE: if you use a WFL around the EXIT_EXPR so you
243 can issue debug info for it, the EXIT_EXPR will be one operand
245 #define LOOP_EXPR_BODY_CONDITION_EXPR(NODE, R) \
246 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 1 : 0))
248 /* Here is the labeled block the loop real body is encapsulated in */
249 #define LOOP_EXPR_BODY_LABELED_BODY(NODE, R) \
250 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 0 : 1))
251 /* And here is the loop's real body */
252 #define LOOP_EXPR_BODY_BODY_EXPR(NODE, R) \
253 LABELED_BLOCK_BODY (LOOP_EXPR_BODY_LABELED_BODY(NODE, R))
255 /* Does a loop have a label ? */
256 #define LOOP_HAS_LABEL_P(LOOP) \
257 (ctxp->current_labeled_block \
258 && LABELED_BLOCK_BODY (ctxp->current_labeled_block) == (LOOP))
260 /* Same operation than the one performed above, but considering the
261 previous labeled block */
262 #define LOOP_HAS_LABEL_SKIP_P(LOOP) \
263 (ctxp->current_labeled_block \
264 && TREE_CHAIN (ctxp->current_labeled_block) \
265 && LABELED_BLOCK_BODY (TREE_CHAIN (ctxp->current_labeled_block)) == (LOOP))
267 #define PUSH_LABELED_BLOCK(B) \
269 TREE_CHAIN (B) = ctxp->current_labeled_block; \
270 ctxp->current_labeled_block = (B); \
272 #define POP_LABELED_BLOCK() \
273 ctxp->current_labeled_block = TREE_CHAIN (ctxp->current_labeled_block)
275 #define PUSH_LOOP(L) \
277 TREE_CHAIN (L) = ctxp->current_loop; \
278 ctxp->current_loop = (L); \
280 #define POP_LOOP() ctxp->current_loop = TREE_CHAIN (ctxp->current_loop)
282 #define PUSH_EXCEPTIONS(E) \
283 currently_caught_type_list = \
284 tree_cons (NULL_TREE, (E), currently_caught_type_list);
286 #define POP_EXCEPTIONS() \
287 currently_caught_type_list = TREE_CHAIN (currently_caught_type_list)
289 /* Check that we're inside a try block. */
290 #define IN_TRY_BLOCK_P() \
291 (currently_caught_type_list \
292 && ((TREE_VALUE (currently_caught_type_list) != \
293 DECL_FUNCTION_THROWS (current_function_decl)) \
294 || TREE_CHAIN (currently_caught_type_list)))
296 /* Check that we have exceptions in E. */
297 #define EXCEPTIONS_P(E) ((E) ? TREE_VALUE (E) : NULL_TREE)
299 /* Invocation modes, as returned by invocation_mode (). */
308 /* We need the resolution stuff only if we compile jc1 */
311 /* Unresolved type identifiers handling. When we process the source
312 code, we blindly accept an unknown type identifier and try to
313 resolve it later. When an unknown type identifier is encountered
314 and used, we record in a struct jdep element what the incomplete
315 type is and what it should patch. Later, java_complete_class will
316 process all classes known to have unresolved type
317 dependencies. Within each of these classes, this routine will
318 process unresolved type dependencies (JDEP_TO_RESOLVE), patch what
319 needs to be patched in the dependent tree node (JDEP_GET_PATCH,
320 JDEP_APPLY_PATCH) and perform other actions dictated by the context
321 of the patch (JDEP_KIND). The ideas are: we patch only what needs
322 to be patched, and with java_complete_class called at the right
323 time, we will start processing incomplete function bodies tree
324 nodes with everything external to function's bodies already
325 completed, it makes things much simpler. */
328 JDEP_NO_PATCH, /* Must be first */
329 JDEP_SUPER, /* Patch the type of one type
330 supertype. Requires some check
332 JDEP_FIELD, /* Patch the type of a class field */
334 /* JDEP_{METHOD,METHOD_RETURN,METHOD_END} to be kept in order */
335 JDEP_METHOD, /* Mark the beginning of the patching
336 of a method declaration, including
338 JDEP_METHOD_RETURN, /* Mark the beginning of the patching
339 of a method declaration. Arguments
340 aren't patched, only the returned
342 JDEP_METHOD_END, /* Mark the end of the patching of a
343 method declaration. It indicates
344 that it's time to compute and
345 install a new signature */
347 JDEP_INTERFACE, /* Patch the type of a Class/interface
349 JDEP_VARIABLE, /* Patch the type of a variable declaration */
350 JDEP_PARM, /* Patch the type of a parm declaration */
351 JDEP_TYPE, /* Patch a random tree node type,
352 without the need for any specific
354 JDEP_EXCEPTION, /* Patch exceptions specified by `throws' */
357 typedef struct _jdep {
358 #ifdef ONLY_INT_FIELDS
359 int kind : 8; /* Type of patch */
361 enum jdep_code kind : 8;
364 int flag0 : 1; /* Some flags */
365 tree decl; /* Tied decl/or WFL */
366 tree solv; /* What to solve */
367 tree wfl; /* Where thing to resolve where found */
368 tree misc; /* Miscellaneous info (optional). */
369 tree *patch; /* Address of a location to patch */
370 struct _jdep *next; /* Linked list */
374 #define JDEP_DECL(J) ((J)->decl)
375 #define JDEP_DECL_WFL(J) ((J)->decl)
376 #define JDEP_KIND(J) ((J)->kind)
377 #define JDEP_SOLV(J) ((J)->solv)
378 #define JDEP_WFL(J) ((J)->wfl)
379 #define JDEP_MISC(J) ((J)->misc)
380 #define JDEP_CLASS(J) ((J)->class)
381 #define JDEP_APPLY_PATCH(J,P) (*(J)->patch = (P))
382 #define JDEP_GET_PATCH(J) ((J)->patch)
383 #define JDEP_CHAIN(J) ((J)->next)
384 #define JDEP_TO_RESOLVE(J) (TREE_PURPOSE ((J)->solv))
385 #define JDEP_RESOLVED_DECL(J) ((J)->solv ? TREE_PURPOSE ((J)->solv):NULL_TREE)
386 #define JDEP_RESOLVED(J, D) \
388 TREE_PURPOSE ((J)->solv) = D; \
389 TREE_VALUE ((J)->solv) = (J)->solv; \
391 #define JDEP_RESOLVED_P(J) (!(J)->solv || \
392 TREE_VALUE ((J)->solv) == (J)->solv)
394 typedef struct _jdeplist {
397 struct _jdeplist *next;
399 static jdeplist *reverse_jdep_list ();
401 #endif /* JC1_LITE */
403 #define CLASSD_FIRST(CD) ((CD)->first)
404 #define CLASSD_LAST(CD) ((CD)->last)
405 #define CLASSD_CHAIN(CD) ((CD)->next)
407 #define JDEP_INSERT(L,J) \
410 (L)->last = (L)->first = (J); \
413 JDEP_CHAIN ((L)->last) = (J); \
418 /* if TYPE can't be resolved, obtain something suitable for its
419 resolution (TYPE is saved in SAVE before being changed). and set
420 CHAIN to 1. Otherwise, type is set to something usable. CHAIN is
421 usually used to determine that a new DEP must be installed on TYPE.
422 Note that when compiling java.lang.Object, references to Object are
424 #define SET_TYPE_FOR_RESOLUTION(TYPE, SAVE, CHAIN) \
426 tree returned_type; \
428 if (TREE_TYPE (ctxp->current_parsed_class) == object_type_node \
429 && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION \
430 && EXPR_WFL_NODE (TYPE) == unqualified_object_id_node) \
431 (TYPE) = object_type_node; \
434 if (unresolved_type_p (type, &returned_type)) \
437 (TYPE) = returned_type; \
441 (TYPE) = obtain_incomplete_type (TYPE); \
447 /* Promote a type if it won't be registered as a patch */
448 #define PROMOTE_RECORD_IF_COMPLETE(TYPE, IS_INCOMPLETE) \
450 if (!(IS_INCOMPLETE) && TREE_CODE (TYPE) == RECORD_TYPE) \
451 (TYPE) = promote_type (TYPE); \
454 /* Insert a DECL in the current block */
455 #define BLOCK_CHAIN_DECL(NODE) \
457 TREE_CHAIN ((NODE)) = \
458 BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (current_function_decl)); \
459 BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (current_function_decl)) = (NODE); \
462 /* For an artificial BLOCK (created to house a local variable declaration not
463 at the start of an existing block), the parent block; otherwise NULL. */
464 #define BLOCK_EXPR_ORIGIN(NODE) BLOCK_ABSTRACT_ORIGIN(NODE)
466 /* Merge an other line to the source line number of a decl. Used to
467 remember function's end. */
468 #define DECL_SOURCE_LINE_MERGE(DECL,NO) DECL_SOURCE_LINE(DECL) |= (NO << 16)
470 /* Retrieve those two info separately. */
471 #define DECL_SOURCE_LINE_FIRST(DECL) (DECL_SOURCE_LINE(DECL) & 0x0000ffff)
472 #define DECL_SOURCE_LINE_LAST(DECL) (DECL_SOURCE_LINE(DECL) >> 16)
474 /* Build a WFL for expression nodes */
475 #define BUILD_EXPR_WFL(NODE, WFL) \
476 build_expr_wfl ((NODE), input_filename, EXPR_WFL_LINENO ((WFL)), \
477 EXPR_WFL_COLNO ((WFL)))
479 #define EXPR_WFL_QUALIFICATION(WFL) TREE_OPERAND ((WFL), 1)
480 #define QUAL_WFL(NODE) TREE_PURPOSE (NODE)
481 #define QUAL_RESOLUTION(NODE) TREE_VALUE (NODE)
482 #define QUAL_DECL_TYPE(NODE) GET_SKIP_TYPE (NODE)
484 #define GET_SKIP_TYPE(NODE) \
485 (TREE_CODE (TREE_TYPE (NODE)) == POINTER_TYPE ? \
486 TREE_TYPE (TREE_TYPE (NODE)): TREE_TYPE (NODE))
488 /* Handy macros for the walk operation */
489 #define COMPLETE_CHECK_OP(NODE, N) \
491 TREE_OPERAND ((NODE), (N)) = \
492 java_complete_tree (TREE_OPERAND ((NODE), (N))); \
493 if (TREE_OPERAND ((NODE), (N)) == error_mark_node) \
494 return error_mark_node; \
496 #define COMPLETE_CHECK_OP_0(NODE) COMPLETE_CHECK_OP(NODE, 0)
497 #define COMPLETE_CHECK_OP_1(NODE) COMPLETE_CHECK_OP(NODE, 1)
498 #define COMPLETE_CHECK_OP_2(NODE) COMPLETE_CHECK_OP(NODE, 2)
500 /* Building invocations: append(ARG) and StringBuffer(ARG) */
501 #define BUILD_APPEND(ARG) \
502 ((JSTRING_TYPE_P (TREE_TYPE (ARG)) || JPRIMITIVE_TYPE_P (TREE_TYPE (ARG))) \
503 ? build_method_invocation (wfl_append, \
504 ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE)\
505 : build_method_invocation (wfl_append, \
506 ARG ? build_tree_list (NULL, \
507 build1 (CONVERT_EXPR, \
511 #define BUILD_STRING_BUFFER(ARG) \
512 build_new_invocation (wfl_string_buffer, \
513 (ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE))
515 /* For exception handling, build diverse function calls */
516 #define BUILD_MONITOR_ENTER(WHERE, ARG) \
518 (WHERE) = build (CALL_EXPR, int_type_node, \
519 build_address_of (soft_monitorenter_node), \
520 build_tree_list (NULL_TREE, (ARG)), \
522 TREE_SIDE_EFFECTS (WHERE) = 1; \
525 #define BUILD_MONITOR_EXIT(WHERE, ARG) \
527 (WHERE) = build (CALL_EXPR, int_type_node, \
528 build_address_of (soft_monitorexit_node), \
529 build_tree_list (NULL_TREE, (ARG)), \
531 TREE_SIDE_EFFECTS (WHERE) = 1; \
534 #define BUILD_ASSIGN_EXCEPTION_INFO(WHERE, TO) \
536 (WHERE) = build (MODIFY_EXPR, void_type_node, (TO), \
537 soft_exceptioninfo_call_node); \
538 TREE_SIDE_EFFECTS (WHERE) = 1; \
541 #define BUILD_THROW(WHERE, WHAT) \
543 (WHERE) = build (CALL_EXPR, void_type_node, \
544 build_address_of (throw_node), \
545 build_tree_list (NULL_TREE, (WHAT)), NULL_TREE); \
546 TREE_SIDE_EFFECTS ((WHERE)) = 1; \
549 /* Set wfl_operator for the most accurate error location */
550 #define SET_WFL_OPERATOR(WHICH, NODE, WFL) \
551 EXPR_WFL_LINECOL (WHICH) = \
552 (TREE_CODE (WFL) == EXPR_WITH_FILE_LOCATION ? \
553 EXPR_WFL_LINECOL (WFL) : EXPR_WFL_LINECOL (NODE))
555 #define PATCH_METHOD_RETURN_ERROR() \
558 *ret_decl = NULL_TREE; \
559 return error_mark_node; \
562 /* Convenient macro to check. Assumes that CLASS is a CLASS_DECL. */
563 #define CHECK_METHODS(CLASS) \
565 if (CLASS_INTERFACE ((CLASS))) \
566 java_check_abstract_methods ((CLASS)); \
568 java_check_regular_methods ((CLASS)); \
571 /* Using and reseting the @deprecated tag flag */
572 #define CHECK_DEPRECATED(DECL) \
574 if (ctxp->deprecated) \
575 DECL_DEPRECATED (DECL) = 1; \
576 ctxp->deprecated = 0; \
579 /* Register an import */
580 #define REGISTER_IMPORT(WHOLE, NAME) \
582 IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P ((NAME)) = 1; \
583 node = build_tree_list ((WHOLE), (NAME)); \
584 TREE_CHAIN (node) = ctxp->import_list; \
585 ctxp->import_list = node; \
588 /* Macro to access the osb (opening square bracket) count */
589 #define CURRENT_OSB(C) (C)->osb_number [(C)->osb_depth]
591 /* Parser context data structure. */
594 char *filename; /* Current filename */
595 FILE *finput; /* Current file input stream */
596 struct parser_ctxt *next;
598 struct java_line *p_line, *c_line; /* Previous and current line */
599 java_lc elc; /* Error's line column info */
600 unicode_t unget_utf8_value; /* An unget utf8 value */
601 int ccb_indent; /* Keep track of {} indent, lexer */
602 int first_ccb_indent1; /* First { at ident level 1 */
603 int last_ccb_indent1; /* Last } at ident level 1 */
604 int parser_ccb_indent; /* Keep track of {} indent, parser */
605 int osb_depth; /* Current depth of [ in an expression */
606 int osb_limit; /* Limit of this depth */
607 int *osb_number; /* Keep track of ['s */
608 int minus_seen; /* Integral literal overflow */
609 int lineno; /* Current lineno */
610 int java_error_flag; /* Report error when true */
611 int deprecated; /* @deprecated tag seen */
613 /* This section is defined only if we compile jc1 */
615 tree modifier_ctx [11]; /* WFL of modifiers */
616 tree current_class; /* Current class */
617 tree current_function_decl; /* Current function decl, save/restore */
619 JCF *current_jcf; /* CU jcf */
621 int prevent_ese; /* Prevent expression statement error */
622 int class_err; /* Flag to report certain errors */
624 int formal_parameter_number; /* Number of parameters found */
625 int interface_number; /* # itfs declared to extend an itf def */
627 tree package; /* Defined package ID */
629 /* Those tow list are saved accross file traversal */
630 tree incomplete_class; /* List of non-complete classes */
631 tree gclass_list; /* All classes seen from source code */
633 /* These two lists won't survive file traversal */
634 tree class_list; /* List of classes in a CU */
635 jdeplist *classd_list; /* Classe dependencies in a CU */
637 tree current_parsed_class; /* Class currently parsed */
638 tree current_parsed_class_un; /* Curr. parsed class unqualified name */
640 tree non_static_initialized; /* List of non static initialized fields */
641 tree static_initialized; /* List of static non final initialized */
643 tree import_list; /* List of import */
644 tree import_demand_list; /* List of import on demand */
646 tree current_loop; /* List of the currently nested
648 tree current_labeled_block; /* List of currently nested
651 int pending_block; /* Pending block to close */
653 int explicit_constructor_p; /* True when processing an explicit
654 constructor. This flag is used to trap
655 illegal argument usage during an
656 explicit constructor invocation. */
657 #endif /* JC1_LITE */
661 void safe_layout_class PROTO ((tree));
662 void java_complete_class PROTO ((void));
663 void java_check_circular_reference PROTO ((void));
664 void java_check_final PROTO ((void));
665 void java_layout_classes PROTO ((void));
666 tree java_method_add_stmt PROTO ((tree, tree));
667 char *java_get_line_col PROTO ((char *, int, int));
668 void java_expand_switch PROTO ((tree));
669 int java_report_errors PROTO (());
672 /* Always in use, no matter what you compile */
673 void java_push_parser_context PROTO ((void));
674 void java_pop_parser_context PROTO ((int));
675 void java_init_lex PROTO ((void));
676 int yyparse PROTO ((void));
678 void yyerror PROTO ((char *));