1 /* Language parser definitions for the GNU compiler for the Java(TM) language.
2 Copyright (C) 1997, 1998, 1999, 2000 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 PARAMS ((tree, tree));
40 extern tree stabilize_reference PARAMS ((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_INNER_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_ABSTRACT|ACC_STATIC
83 #define INTERFACE_METHOD_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT
84 #define INTERFACE_FIELD_MODIFIERS ACC_PUBLIC|ACC_STATIC|ACC_FINAL
86 /* Getting a modifier WFL */
87 #define MODIFIER_WFL(M) (ctxp->modifier_ctx [(M) - PUBLIC_TK])
89 /* Check on modifiers */
90 #define THIS_MODIFIER_ONLY(f, m, v, count, l) \
93 tree node = MODIFIER_WFL (v); \
95 && ((EXPR_WFL_COLNO (node) > EXPR_WFL_COLNO (l)) \
96 || (EXPR_WFL_LINENO (node) > EXPR_WFL_LINENO (l)))) \
103 #define ABSTRACT_CHECK(FLAG, V, CL, S) \
105 parse_error_context ((CL), "%s method can't be abstract", (S));
107 #define JCONSTRUCTOR_CHECK(FLAG, V, CL, S) \
109 parse_error_context ((CL), "Constructor can't be %s", (S)); \
112 #define exit_java_complete_class() \
118 #define CLASS_OR_INTERFACE(decl, s1, s2) \
120 ((get_access_flags_from_decl (TYPE_NAME (TREE_TYPE (decl))) \
122 s2 : s1) : ((s1 [0]=='S'|| s1 [0]=='s') ? \
123 (s1 [0]=='S' ? "Supertype" : "supertype") : \
124 (s1 [0] > 'A' ? "Type" : "type")))
126 #define GET_REAL_TYPE(TYPE) \
127 (TREE_CODE (TYPE) == TREE_LIST ? TREE_PURPOSE (TYPE) : TYPE)
129 #define GET_METHOD_NAME(METHOD) \
130 (TREE_CODE (DECL_NAME (METHOD)) == EXPR_WITH_FILE_LOCATION ? \
131 EXPR_WFL_NODE (DECL_NAME (METHOD)) : DECL_NAME (METHOD))
133 /* Get TYPE name string, regardless whether TYPE is a class or an
135 #define GET_TYPE_NAME(TYPE) \
136 (TREE_CODE (TYPE_NAME (TYPE)) == IDENTIFIER_NODE ? \
137 IDENTIFIER_POINTER (TYPE_NAME (TYPE)) : \
138 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (TYPE))))
140 /* Pedantic warning on obsolete modifiers. Note: when cl is NULL,
141 flags was set artificially, such as for a interface method */
142 #define OBSOLETE_MODIFIER_WARNING(cl, flags, __modifier, arg) \
144 if (flag_redundant && (cl) && ((flags) & (__modifier))) \
145 parse_warning_context (cl, \
146 "Discouraged redundant use of `%s' modifier in declaration of %s", \
147 java_accstring_lookup (__modifier), arg); \
149 #define OBSOLETE_MODIFIER_WARNING2(cl, flags, __modifier, arg1, arg2) \
151 if (flag_redundant && (cl) && ((flags) & (__modifier))) \
152 parse_warning_context (cl, \
153 "Discouraged redundant use of `%s' modifier in declaration of %s `%s'", \
154 java_accstring_lookup (__modifier), arg1, arg2);\
157 /* Quickly build a temporary pointer on hypothetical type NAME. */
158 #define BUILD_PTR_FROM_NAME(ptr, name) \
160 ptr = build (POINTER_TYPE, NULL_TREE); \
161 TYPE_NAME (ptr) = name; \
164 #define INCOMPLETE_TYPE_P(NODE) \
165 ((TREE_CODE (NODE) == POINTER_TYPE) \
166 && !TREE_TYPE (NODE) \
167 && TREE_CODE (TYPE_NAME (NODE)) == IDENTIFIER_NODE)
169 /* Set the EMIT_LINE_NOTE flag of a EXPR_WLF to 1 if debug information
170 are requested. Works in the context of a parser rule. */
171 #define JAVA_MAYBE_GENERATE_DEBUG_INFO(node) \
172 (debug_info_level != DINFO_LEVEL_NONE ? \
173 EXPR_WFL_EMIT_LINE_NOTE (node) = 1, node : node)
175 /* Types classification, according to the JLS, section 4.2 */
176 #define JFLOAT_TYPE_P(TYPE) (TYPE && TREE_CODE ((TYPE)) == REAL_TYPE)
177 #define JINTEGRAL_TYPE_P(TYPE) ((TYPE) \
178 && (TREE_CODE ((TYPE)) == INTEGER_TYPE \
179 || TREE_CODE ((TYPE)) == CHAR_TYPE))
180 #define JNUMERIC_TYPE_P(TYPE) ((TYPE) \
181 && (JFLOAT_TYPE_P ((TYPE)) \
182 || JINTEGRAL_TYPE_P ((TYPE))))
183 #define JPRIMITIVE_TYPE_P(TYPE) ((TYPE) \
184 && (JNUMERIC_TYPE_P ((TYPE)) \
185 || TREE_CODE ((TYPE)) == BOOLEAN_TYPE))
187 #define JBSC_TYPE_P(TYPE) ((TYPE) && (((TYPE) == byte_type_node) \
188 || ((TYPE) == short_type_node) \
189 || ((TYPE) == char_type_node)))
191 /* Not defined in the LRM */
192 #define JSTRING_TYPE_P(TYPE) ((TYPE) \
193 && ((TYPE) == string_type_node || \
194 (TREE_CODE (TYPE) == POINTER_TYPE && \
195 TREE_TYPE (TYPE) == string_type_node)))
196 #define JSTRING_P(NODE) ((NODE) \
197 && (TREE_CODE (NODE) == STRING_CST \
198 || IS_CRAFTED_STRING_BUFFER_P (NODE) \
199 || JSTRING_TYPE_P (TREE_TYPE (NODE))))
201 #define JREFERENCE_TYPE_P(TYPE) ((TYPE) \
202 && (TREE_CODE (TYPE) == RECORD_TYPE \
203 || (TREE_CODE (TYPE) == POINTER_TYPE \
204 && TREE_CODE (TREE_TYPE (TYPE)) == \
206 #define JNULLP_TYPE_P(TYPE) ((TYPE) && (TREE_CODE (TYPE) == POINTER_TYPE) \
207 && (TYPE) == TREE_TYPE (null_pointer_node))
209 /* Other predicates */
210 #define JDECL_P(NODE) (NODE && (TREE_CODE (NODE) == PARM_DECL \
211 || TREE_CODE (NODE) == VAR_DECL \
212 || TREE_CODE (NODE) == FIELD_DECL))
214 #define TYPE_INTERFACE_P(TYPE) \
215 (CLASS_P (TYPE) && CLASS_INTERFACE (TYPE_NAME (TYPE)))
217 #define TYPE_CLASS_P(TYPE) (CLASS_P (TYPE) \
218 && !CLASS_INTERFACE (TYPE_NAME (TYPE)))
220 /* Identifier business related to 1.1 language extensions. */
222 #define IDENTIFIER_INNER_CLASS_OUTER_FIELD_ACCESS(NODE) \
223 (TREE_CODE (NODE) == IDENTIFIER_NODE && \
224 IDENTIFIER_LENGTH (NODE) >= 8 && \
225 IDENTIFIER_POINTER (NODE)[7] != '0')
227 /* Build the string val$<O> and store it into N. The is used to
228 construct the name of inner class hidden fields used to alias outer
229 scope local variables. */
230 #define MANGLE_OUTER_LOCAL_VARIABLE_NAME(N, O) \
232 obstack_grow (&temporary_obstack, "val$", 4); \
233 obstack_grow (&temporary_obstack, \
234 IDENTIFIER_POINTER ((O)), IDENTIFIER_LENGTH ((O))); \
235 obstack_1grow (&temporary_obstack, '\0'); \
236 (N) = obstack_finish (&temporary_obstack); \
239 /* Build the string parm$<O> and store in into the identifier N. This
240 is used to contruct the name of hidden parameters used to
241 initialize outer scope aliases. */
242 #define MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_ID(N, O) \
244 obstack_grow (&temporary_obstack, "parm$", 5); \
245 obstack_grow (&temporary_obstack, \
246 IDENTIFIER_POINTER ((O)), IDENTIFIER_LENGTH ((O))); \
247 obstack_1grow (&temporary_obstack, '\0'); \
248 (N) = obstack_finish (&temporary_obstack); \
251 #define MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR(N, S) \
253 obstack_grow (&temporary_obstack, "parm$", 5); \
254 obstack_grow (&temporary_obstack, (S), strlen ((S))); \
255 obstack_1grow (&temporary_obstack, '\0'); \
256 (N) = obstack_finish (&temporary_obstack); \
259 /* Skip THIS and artificial parameters found in function decl M and
260 assign the result to C. We don't do that for $finit$, since it's
261 knowingly called with artificial parms. */
262 #define SKIP_THIS_AND_ARTIFICIAL_PARMS(C,M) \
265 (C) = TYPE_ARG_TYPES (TREE_TYPE ((M))); \
266 if (!METHOD_STATIC ((M))) \
267 (C) = TREE_CHAIN (C); \
268 if (DECL_CONSTRUCTOR_P ((M)) \
269 && PURE_INNER_CLASS_TYPE_P (DECL_CONTEXT ((M)))) \
270 (C) = TREE_CHAIN (C); \
271 if (!DECL_FINIT_P ((M))) \
272 for (i = DECL_FUNCTION_NAP ((M)); i; i--) \
273 (C) = TREE_CHAIN (C); \
276 /* Mark final parameters in method M, by comparison of the argument
277 list L. This macro is used to set the flag once the method has been
279 #define MARK_FINAL_PARMS(M, L) \
281 tree current = TYPE_ARG_TYPES (TREE_TYPE ((M))); \
283 if (!METHOD_STATIC ((M))) \
284 current = TREE_CHAIN (current); \
285 for (; current != end_params_node; \
286 current = TREE_CHAIN (current), list = TREE_CHAIN (list)) \
287 ARG_FINAL_P (current) = ARG_FINAL_P (list); \
288 if (current != list) \
289 fatal ("MARK_FINAL_PARMS"); \
292 /* Reset the ARG_FINAL_P that might have been set in method M args. */
293 #define UNMARK_FINAL_PARMS(M) \
296 for (current = TYPE_ARG_TYPES (TREE_TYPE ((M))); \
297 current != end_params_node; current = TREE_CHAIN (current)) \
298 ARG_FINAL_P (current) = 0; \
301 /* Reverse a crafted parameter list as required. */
302 #define CRAFTED_PARAM_LIST_FIXUP(P) \
307 (P) = nreverse (P); \
308 TREE_CHAIN (last) = end_params_node; \
311 (P) = end_params_node; \
314 /* Modes governing the creation of a alias initializer parameter
315 lists. AIPL stands for Alias Initializer Parameter List. */
317 AIPL_FUNCTION_CREATION, /* Suitable for artificial method creation */
318 AIPL_FUNCTION_DECLARATION, /* Suitable for declared methods */
319 AIPL_FUNCTION_CTOR_INVOCATION, /* Invocation of constructors */
320 AIPL_FUNCTION_FINIT_INVOCATION /* Invocation of $finit$ */
323 /* Standard error messages */
324 #define ERROR_CANT_CONVERT_TO_BOOLEAN(OPERATOR, NODE, TYPE) \
325 parse_error_context ((OPERATOR), \
326 "Incompatible type for `%s'. Can't convert `%s' to boolean", \
327 operator_string ((NODE)), lang_printable_name ((TYPE),0))
329 #define ERROR_CANT_CONVERT_TO_NUMERIC(OPERATOR, NODE, TYPE) \
330 parse_error_context ((OPERATOR), \
331 "Incompatible type for `%s'. Can't convert `%s' to numeric type", \
332 operator_string ((NODE)), lang_printable_name ((TYPE), 0))
334 #define ERROR_CAST_NEEDED_TO_INTEGRAL(OPERATOR, NODE, TYPE) \
336 tree _operator = (OPERATOR), _node = (NODE), _type = (TYPE); \
337 if (JPRIMITIVE_TYPE_P (_type)) \
338 parse_error_context (_operator, \
339 "Incompatible type for `%s'. Explicit cast needed to convert `%s' to integral",\
340 operator_string(_node), \
341 lang_printable_name (_type, 0)); \
343 parse_error_context (_operator, \
344 "Incompatible type for `%s'. Can't convert `%s' to integral", \
345 operator_string(_node), \
346 lang_printable_name (_type, 0)); \
349 #define ERROR_VARIABLE_NOT_INITIALIZED(WFL, V) \
350 parse_error_context \
351 ((WFL), "Variable `%s' may not have been initialized", \
352 IDENTIFIER_POINTER (V))
354 /* Definition for loop handling. This is Java's own definition of a
355 loop body. See parse.y for documentation. It's valid once you hold
356 a loop's body (LOOP_EXPR_BODY) */
358 /* The loop main block is the one hold the condition and the loop body */
359 #define LOOP_EXPR_BODY_MAIN_BLOCK(NODE) TREE_OPERAND (NODE, 0)
360 /* And then there is the loop update block */
361 #define LOOP_EXPR_BODY_UPDATE_BLOCK(NODE) TREE_OPERAND (NODE, 1)
363 /* Inside the loop main block, there is the loop condition and the
364 loop body. They may be reversed if the loop being described is a
365 do-while loop. NOTE: if you use a WFL around the EXIT_EXPR so you
366 can issue debug info for it, the EXIT_EXPR will be one operand
368 #define LOOP_EXPR_BODY_CONDITION_EXPR(NODE, R) \
369 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 1 : 0))
371 /* Here is the labeled block the loop real body is encapsulated in */
372 #define LOOP_EXPR_BODY_LABELED_BODY(NODE, R) \
373 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 0 : 1))
374 /* And here is the loop's real body */
375 #define LOOP_EXPR_BODY_BODY_EXPR(NODE, R) \
376 LABELED_BLOCK_BODY (LOOP_EXPR_BODY_LABELED_BODY(NODE, R))
378 #define PUSH_LABELED_BLOCK(B) \
380 TREE_CHAIN (B) = ctxp->current_labeled_block; \
381 ctxp->current_labeled_block = (B); \
383 #define POP_LABELED_BLOCK() \
384 ctxp->current_labeled_block = TREE_CHAIN (ctxp->current_labeled_block)
386 #define PUSH_LOOP(L) \
388 TREE_CHAIN (L) = ctxp->current_loop; \
389 ctxp->current_loop = (L); \
391 #define POP_LOOP() ctxp->current_loop = TREE_CHAIN (ctxp->current_loop)
393 #define PUSH_EXCEPTIONS(E) \
394 currently_caught_type_list = \
395 tree_cons (NULL_TREE, (E), currently_caught_type_list);
397 #define POP_EXCEPTIONS() \
398 currently_caught_type_list = TREE_CHAIN (currently_caught_type_list)
400 /* Check that we're inside a try block. */
401 #define IN_TRY_BLOCK_P() \
402 (currently_caught_type_list \
403 && ((TREE_VALUE (currently_caught_type_list) != \
404 DECL_FUNCTION_THROWS (current_function_decl)) \
405 || TREE_CHAIN (currently_caught_type_list)))
407 /* Check that we have exceptions in E. */
408 #define EXCEPTIONS_P(E) ((E) ? TREE_VALUE (E) : NULL_TREE)
410 /* Anonymous array access */
411 #define ANONYMOUS_ARRAY_BASE_TYPE(N) TREE_OPERAND ((N), 0)
412 #define ANONYMOUS_ARRAY_DIMS_SIG(N) TREE_OPERAND ((N), 1)
413 #define ANONYMOUS_ARRAY_INITIALIZER(N) TREE_OPERAND ((N), 2)
415 /* Invocation modes, as returned by invocation_mode (). */
424 /* We need the resolution stuff only if we compile jc1 */
427 /* Unresolved type identifiers handling. When we process the source
428 code, we blindly accept an unknown type identifier and try to
429 resolve it later. When an unknown type identifier is encountered
430 and used, we record in a struct jdep element what the incomplete
431 type is and what it should patch. Later, java_complete_class will
432 process all classes known to have unresolved type
433 dependencies. Within each of these classes, this routine will
434 process unresolved type dependencies (JDEP_TO_RESOLVE), patch what
435 needs to be patched in the dependent tree node (JDEP_GET_PATCH,
436 JDEP_APPLY_PATCH) and perform other actions dictated by the context
437 of the patch (JDEP_KIND). The ideas are: we patch only what needs
438 to be patched, and with java_complete_class called at the right
439 time, we will start processing incomplete function bodies tree
440 nodes with everything external to function's bodies already
441 completed, it makes things much simpler. */
444 JDEP_NO_PATCH, /* Must be first */
445 JDEP_SUPER, /* Patch the type of one type
446 supertype. Requires some check
448 JDEP_FIELD, /* Patch the type of a class field */
450 /* JDEP_{METHOD,METHOD_RETURN,METHOD_END} to be kept in order */
451 JDEP_METHOD, /* Mark the beginning of the patching
452 of a method declaration, including
454 JDEP_METHOD_RETURN, /* Mark the beginning of the patching
455 of a method declaration. Arguments
456 aren't patched, only the returned
458 JDEP_METHOD_END, /* Mark the end of the patching of a
459 method declaration. It indicates
460 that it's time to compute and
461 install a new signature */
463 JDEP_INTERFACE, /* Patch the type of a Class/interface
465 JDEP_VARIABLE, /* Patch the type of a variable declaration */
466 JDEP_PARM, /* Patch the type of a parm declaration */
467 JDEP_TYPE, /* Patch a random tree node type,
468 without the need for any specific
470 JDEP_EXCEPTION, /* Patch exceptions specified by `throws' */
471 JDEP_ANONYMOUS /* Patch anonymous classes
472 (implementation or extension.) */
476 typedef struct _jdep {
477 ENUM_BITFIELD(jdep_code) kind : 8; /* Type of patch */
479 int flag0 : 1; /* Some flags */
480 tree decl; /* Tied decl/or WFL */
481 tree solv; /* What to solve */
482 tree wfl; /* Where thing to resolve where found */
483 tree misc; /* Miscellaneous info (optional). */
484 tree enclosing; /* The enclosing (current) class */
485 tree *patch; /* Address of a location to patch */
486 struct _jdep *next; /* Linked list */
490 #define JDEP_DECL(J) ((J)->decl)
491 #define JDEP_DECL_WFL(J) ((J)->decl)
492 #define JDEP_KIND(J) ((J)->kind)
493 #define JDEP_SOLV(J) ((J)->solv)
494 #define JDEP_WFL(J) ((J)->wfl)
495 #define JDEP_MISC(J) ((J)->misc)
496 #define JDEP_ENCLOSING(J) ((J)->enclosing)
497 #define JDEP_CLASS(J) ((J)->class)
498 #define JDEP_APPLY_PATCH(J,P) (*(J)->patch = (P))
499 #define JDEP_GET_PATCH(J) ((J)->patch)
500 #define JDEP_CHAIN(J) ((J)->next)
501 #define JDEP_TO_RESOLVE(J) ((J)->solv)
502 #define JDEP_RESOLVED_DECL(J) ((J)->solv)
503 #define JDEP_RESOLVED(J, D) ((J)->solv = D)
504 #define JDEP_RESOLVED_P(J) \
505 (!(J)->solv || TREE_CODE ((J)->solv) != POINTER_TYPE)
507 typedef struct _jdeplist {
510 struct _jdeplist *next;
513 #endif /* JC1_LITE */
515 #define CLASSD_FIRST(CD) ((CD)->first)
516 #define CLASSD_LAST(CD) ((CD)->last)
517 #define CLASSD_CHAIN(CD) ((CD)->next)
519 #define JDEP_INSERT(L,J) \
522 (L)->last = (L)->first = (J); \
525 JDEP_CHAIN ((L)->last) = (J); \
530 /* if TYPE can't be resolved, obtain something suitable for its
531 resolution (TYPE is saved in SAVE before being changed). and set
532 CHAIN to 1. Otherwise, type is set to something usable. CHAIN is
533 usually used to determine that a new DEP must be installed on TYPE.
534 Note that when compiling java.lang.Object, references to Object are
536 #define SET_TYPE_FOR_RESOLUTION(TYPE, SAVE, CHAIN) \
538 tree returned_type; \
540 if (TREE_TYPE (ctxp->current_parsed_class) == object_type_node \
541 && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION \
542 && EXPR_WFL_NODE (TYPE) == unqualified_object_id_node) \
543 (TYPE) = object_type_node; \
546 if (unresolved_type_p (type, &returned_type)) \
549 (TYPE) = returned_type; \
553 (TYPE) = obtain_incomplete_type (TYPE); \
559 /* Promote a type if it won't be registered as a patch */
560 #define PROMOTE_RECORD_IF_COMPLETE(TYPE, IS_INCOMPLETE) \
562 if (!(IS_INCOMPLETE) && TREE_CODE (TYPE) == RECORD_TYPE) \
563 (TYPE) = promote_type (TYPE); \
566 /* Insert a DECL in the current block */
567 #define BLOCK_CHAIN_DECL(NODE) \
569 TREE_CHAIN ((NODE)) = \
570 BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)); \
571 BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)) = (NODE); \
574 /* Return the current block, either found in the body of the currently
575 declared function or in the current static block being defined. */
576 #define GET_CURRENT_BLOCK(F) ((F) ? DECL_FUNCTION_BODY ((F)) : \
577 current_static_block)
579 /* For an artificial BLOCK (created to house a local variable declaration not
580 at the start of an existing block), the parent block; otherwise NULL. */
581 #define BLOCK_EXPR_ORIGIN(NODE) BLOCK_ABSTRACT_ORIGIN(NODE)
583 /* Merge an other line to the source line number of a decl. Used to
584 remember function's end. */
585 #define DECL_SOURCE_LINE_MERGE(DECL,NO) DECL_SOURCE_LINE(DECL) |= (NO << 16)
587 /* Retrieve those two info separately. */
588 #define DECL_SOURCE_LINE_FIRST(DECL) (DECL_SOURCE_LINE(DECL) & 0x0000ffff)
589 #define DECL_SOURCE_LINE_LAST(DECL) (DECL_SOURCE_LINE(DECL) >> 16)
591 /* Retrieve line/column from a WFL. */
592 #define EXPR_WFL_GET_LINECOL(V,LINE,COL) \
594 (LINE) = (V) >> 12; \
595 (COL) = (V) & 0xfff; \
597 /* Add X to the column number information */
598 #define EXPR_WFL_ADD_COL(V, X) \
599 (V) = (((V) & 0xfffff000) | ((((V) & 0xfff) + (X)) & 0xfff))
601 /* Build a WFL for expression nodes */
602 #define BUILD_EXPR_WFL(NODE, WFL) \
603 build_expr_wfl ((NODE), input_filename, EXPR_WFL_LINENO ((WFL)), \
604 EXPR_WFL_COLNO ((WFL)))
606 #define EXPR_WFL_QUALIFICATION(WFL) TREE_OPERAND ((WFL), 2)
607 #define QUAL_WFL(NODE) TREE_PURPOSE (NODE)
608 #define QUAL_RESOLUTION(NODE) TREE_VALUE (NODE)
609 #define QUAL_DECL_TYPE(NODE) GET_SKIP_TYPE (NODE)
611 #define GET_SKIP_TYPE(NODE) \
612 (TREE_CODE (TREE_TYPE (NODE)) == POINTER_TYPE ? \
613 TREE_TYPE (TREE_TYPE (NODE)): TREE_TYPE (NODE))
615 /* Handy macros for the walk operation */
616 #define COMPLETE_CHECK_OP(NODE, N) \
618 TREE_OPERAND ((NODE), (N)) = \
619 java_complete_tree (TREE_OPERAND ((NODE), (N))); \
620 if (TREE_OPERAND ((NODE), (N)) == error_mark_node) \
621 return error_mark_node; \
623 #define COMPLETE_CHECK_OP_0(NODE) COMPLETE_CHECK_OP(NODE, 0)
624 #define COMPLETE_CHECK_OP_1(NODE) COMPLETE_CHECK_OP(NODE, 1)
625 #define COMPLETE_CHECK_OP_2(NODE) COMPLETE_CHECK_OP(NODE, 2)
627 /* Building invocations: append(ARG) and StringBuffer(ARG) */
628 #define BUILD_APPEND(ARG) \
629 ((JSTRING_TYPE_P (TREE_TYPE (ARG)) || JPRIMITIVE_TYPE_P (TREE_TYPE (ARG))) \
630 ? build_method_invocation (wfl_append, \
631 ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE)\
632 : build_method_invocation (wfl_append, \
633 ARG ? build_tree_list (NULL, \
634 build1 (CONVERT_EXPR, \
638 #define BUILD_STRING_BUFFER(ARG) \
639 build_new_invocation (wfl_string_buffer, \
640 (ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE))
642 /* For exception handling, build diverse function calls */
643 #define BUILD_ASSIGN_EXCEPTION_INFO(WHERE, TO) \
645 (WHERE) = build (MODIFY_EXPR, void_type_node, (TO), \
646 soft_exceptioninfo_call_node); \
647 TREE_SIDE_EFFECTS (WHERE) = 1; \
650 #define BUILD_THROW(WHERE, WHAT) \
653 build (CALL_EXPR, void_type_node, \
654 build_address_of (throw_node[exceptions_via_longjmp ? 1 : 0]), \
655 build_tree_list (NULL_TREE, (WHAT)), NULL_TREE); \
656 TREE_SIDE_EFFECTS ((WHERE)) = 1; \
659 /* Set wfl_operator for the most accurate error location */
660 #define SET_WFL_OPERATOR(WHICH, NODE, WFL) \
661 EXPR_WFL_LINECOL (WHICH) = \
662 (TREE_CODE (WFL) == EXPR_WITH_FILE_LOCATION ? \
663 EXPR_WFL_LINECOL (WFL) : EXPR_WFL_LINECOL (NODE))
665 #define PATCH_METHOD_RETURN_ERROR() \
668 *ret_decl = NULL_TREE; \
669 return error_mark_node; \
672 /* Convenient macro to check. Assumes that CLASS is a CLASS_DECL. */
673 #define CHECK_METHODS(CLASS) \
675 if (CLASS_INTERFACE ((CLASS))) \
676 java_check_abstract_methods ((CLASS)); \
678 java_check_regular_methods ((CLASS)); \
681 /* Using and reseting the @deprecated tag flag */
682 #define CHECK_DEPRECATED(DECL) \
684 if (ctxp->deprecated) \
685 DECL_DEPRECATED (DECL) = 1; \
686 ctxp->deprecated = 0; \
689 /* Register an import */
690 #define REGISTER_IMPORT(WHOLE, NAME) \
692 IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P ((NAME)) = 1; \
693 node = build_tree_list ((WHOLE), (NAME)); \
694 TREE_CHAIN (node) = ctxp->import_list; \
695 ctxp->import_list = node; \
698 /* Macro to access the osb (opening square bracket) count */
699 #define CURRENT_OSB(C) (C)->osb_number [(C)->osb_depth]
701 /* Macro for the xreferencer */
702 #define DECL_END_SOURCE_LINE(DECL) DECL_FRAME_SIZE (DECL)
703 #define DECL_INHERITED_SOURCE_LINE(DECL) (DECL_CHECK (DECL)->decl.u2.i)
705 /* Parser context data structure. */
708 char *filename; /* Current filename */
709 FILE *finput; /* Current file input stream */
710 struct parser_ctxt *next;
712 char marker_begining; /* Marker. Should be a sub-struct */
713 struct java_line *p_line, *c_line; /* Previous and current line */
714 java_lc elc; /* Error's line column info */
715 unicode_t unget_utf8_value; /* An unget utf8 value */
716 int ccb_indent; /* Keep track of {} indent, lexer */
717 int first_ccb_indent1; /* First { at ident level 1 */
718 int last_ccb_indent1; /* Last } at ident level 1 */
719 int parser_ccb_indent; /* Keep track of {} indent, parser */
720 int osb_depth; /* Current depth of [ in an expression */
721 int osb_limit; /* Limit of this depth */
722 int *osb_number; /* Keep track of ['s */
723 int lineno; /* Current lineno */
724 char marker_end; /* End marker. Should be a sub-struct */
726 /* The flags section */
728 /* Indicates a context used for saving the parser status. The
729 context must be popped when the status is restored. */
730 unsigned saved_data_ctx:1;
731 /* Indicates that a context already contains saved data and that the
732 next save operation will require a new context to be created. */
733 unsigned saved_data:1;
734 /* Integral literal overflow */
735 unsigned minus_seen:1;
736 /* Report error when true */
737 unsigned java_error_flag:1;
738 /* @deprecated tag seen */
739 unsigned deprecated:1;
740 /* Flag to report certain errors (fix this documentation. FIXME) */
741 unsigned class_err:1;
743 /* This section is defined only if we compile jc1 */
745 tree modifier_ctx [11]; /* WFL of modifiers */
746 tree current_class; /* Current class */
747 tree current_function_decl; /* Current function decl, save/restore */
749 struct JCF *current_jcf; /* CU jcf */
751 int prevent_ese; /* Prevent expression statement error */
753 int formal_parameter_number; /* Number of parameters found */
754 int interface_number; /* # itfs declared to extend an itf def */
756 tree package; /* Defined package ID */
758 /* Those two list are saved accross file traversal */
759 tree incomplete_class; /* List of non-complete classes */
760 tree gclass_list; /* All classes seen from source code */
762 /* These two lists won't survive file traversal */
763 tree class_list; /* List of classes in a CU */
764 jdeplist *classd_list; /* Classe dependencies in a CU */
766 tree current_parsed_class; /* Class currently parsed */
767 tree current_parsed_class_un; /* Curr. parsed class unqualified name */
769 tree non_static_initialized; /* List of non static initialized fields */
770 tree static_initialized; /* List of static non final initialized */
771 tree instance_initializers; /* List of instancei initializers stmts */
773 tree import_list; /* List of import */
774 tree import_demand_list; /* List of import on demand */
776 tree current_loop; /* List of the currently nested
778 tree current_labeled_block; /* List of currently nested
781 int pending_block; /* Pending block to close */
783 int explicit_constructor_p; /* >0 when processing an explicit
784 constructor. This flag is used to trap
785 illegal argument usage during an
786 explicit constructor invocation. */
787 #endif /* JC1_LITE */
790 /* A set of macros to push/pop/access the currently parsed class. */
791 #define GET_CPC_LIST() ctxp->current_parsed_class
793 /* Currently class being parsed is an inner class if an enclosing
794 class has been already pushed. This truth value is only valid prior
795 an inner class is pushed. After, use FIXME. */
796 #define CPC_INNER_P() GET_CPC_LIST ()
798 /* Get the currently parsed class DECL_TYPE node. */
799 #define GET_CPC() TREE_VALUE (GET_CPC_LIST ())
801 /* Get the currently parsed class unqualified IDENTIFIER_NODE. */
802 #define GET_CPC_UN() TREE_PURPOSE (GET_CPC_LIST ())
804 /* Get a parsed class unqualified IDENTIFIER_NODE from its CPC node. */
805 #define GET_CPC_UN_NODE(N) TREE_PURPOSE (N)
807 /* Get the currently parsed class DECL_TYPE from its CPC node. */
808 #define GET_CPC_DECL_NODE(N) TREE_VALUE (N)
810 /* The currently parsed enclosing currently parsed TREE_LIST node. */
811 #define GET_ENCLOSING_CPC() TREE_CHAIN (GET_CPC_LIST ())
813 /* Get the next enclosing context. */
814 #define GET_NEXT_ENCLOSING_CPC(C) TREE_CHAIN (C)
816 /* The DECL_TYPE node of the enclosing currently parsed
817 class. NULL_TREE if the currently parsed class isn't an inner
819 #define GET_ENCLOSING_CPC_CONTEXT() (GET_ENCLOSING_CPC () ? \
820 TREE_VALUE (GET_ENCLOSING_CPC ()) : \
823 /* Make sure that innerclass T sits in an appropriate enclosing
825 #define INNER_ENCLOSING_SCOPE_CHECK(T) \
826 (INNER_CLASS_TYPE_P ((T)) && !ANONYMOUS_CLASS_P ((T)) \
828 /* We have a this and it's not the right one */ \
829 && (DECL_CONTEXT (TYPE_NAME ((T))) \
830 != TYPE_NAME (TREE_TYPE (TREE_TYPE (current_this)))) \
831 && !inherits_from_p (TREE_TYPE (TREE_TYPE (current_this)), \
832 TREE_TYPE (DECL_CONTEXT (TYPE_NAME (T))))) \
833 /* We don't have a this. */ \
836 /* Push macro. First argument to PUSH_CPC is a DECL_TYPE, second
837 argument is the unqualified currently parsed class name. */
838 #define PUSH_CPC(C,R) { \
839 ctxp->current_parsed_class = \
840 tree_cons ((R), (C), GET_CPC_LIST ()); \
843 /* In case of an error, push an error. */
844 #define PUSH_ERROR() PUSH_CPC (error_mark_node, error_mark_node)
846 /* Pop macro. Before we pop, we link the current inner class decl (if any)
847 to its enclosing class. */
848 #define POP_CPC() { \
849 link_nested_class_to_enclosing (); \
850 ctxp->current_parsed_class = \
851 TREE_CHAIN (GET_CPC_LIST ()); \
854 #define DEBUG_CPC() \
857 tree tmp = ctxp->current_parsed_class; \
860 fprintf (stderr, "%s ", \
861 IDENTIFIER_POINTER (TREE_PURPOSE (tmp))); \
862 tmp = TREE_CHAIN (tmp); \
867 /* Access to the various initializer statement lists */
868 #define CPC_INITIALIZER_LIST(C) ((C)->non_static_initialized)
869 #define CPC_STATIC_INITIALIZER_LIST(C) ((C)->static_initialized)
870 #define CPC_INSTANCE_INITIALIZER_LIST(C) ((C)->instance_initializers)
872 /* Access to the various initializer statements */
873 #define CPC_INITIALIZER_STMT(C) (TREE_PURPOSE (CPC_INITIALIZER_LIST (C)))
874 #define CPC_STATIC_INITIALIZER_STMT(C) \
875 (TREE_PURPOSE (CPC_STATIC_INITIALIZER_LIST (C)))
876 #define CPC_INSTANCE_INITIALIZER_STMT(C) \
877 (TREE_PURPOSE (CPC_INSTANCE_INITIALIZER_LIST (C)))
879 /* Set various initializer statements */
880 #define SET_CPC_INITIALIZER_STMT(C,S) \
881 if (CPC_INITIALIZER_LIST (C)) \
882 TREE_PURPOSE (CPC_INITIALIZER_LIST (C)) = (S);
883 #define SET_CPC_STATIC_INITIALIZER_STMT(C,S) \
884 if (CPC_STATIC_INITIALIZER_LIST (C)) \
885 TREE_PURPOSE (CPC_STATIC_INITIALIZER_LIST (C)) = (S);
886 #define SET_CPC_INSTANCE_INITIALIZER_STMT(C,S) \
887 if (CPC_INSTANCE_INITIALIZER_LIST(C)) \
888 TREE_PURPOSE (CPC_INSTANCE_INITIALIZER_LIST (C)) = (S);
891 void java_complete_class PARAMS ((void));
892 void java_check_circular_reference PARAMS ((void));
893 void java_fix_constructors PARAMS ((void));
894 void java_layout_classes PARAMS ((void));
895 void java_reorder_fields PARAMS ((void));
896 tree java_method_add_stmt PARAMS ((tree, tree));
897 void java_expand_switch PARAMS ((tree));
898 int java_report_errors PARAMS ((void));
899 extern tree do_resolve_class PARAMS ((tree, tree, tree, tree));
901 char *java_get_line_col PARAMS ((char *, int, int));
902 extern void reset_report PARAMS ((void));
904 /* Always in use, no matter what you compile */
905 void java_push_parser_context PARAMS ((void));
906 void java_pop_parser_context PARAMS ((int));
907 void java_init_lex PARAMS ((void));
908 extern void java_parser_context_save_global PARAMS ((void));
909 extern void java_parser_context_restore_global PARAMS ((void));
910 int yyparse PARAMS ((void));
911 extern int java_parse PARAMS ((void));
912 void yyerror PARAMS ((const char *));
913 extern void java_expand_classes PARAMS ((void));