?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
2002-03-31 Segher Boessenkool <segher@koffie.nl>
[official-gcc.git] / gcc / java / parse.h
blob17806dc21a89a367b4f7ce532e9fe07cd1a5f9a0
1 /* Language parser definitions for the GNU compiler for the Java(TM) language.
2 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
3 Free Software Foundation, Inc.
4 Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com)
5
6 This file is part of GCC.
7
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA.
22
23 Java and all Java-based marks are trademarks or registered trademarks
24 of Sun Microsystems, Inc. in the United States and other countries.
25 The Free Software Foundation is independent of Sun Microsystems, Inc. */
26
27 #ifndef GCC_JAVA_PARSE_H
28 #define GCC_JAVA_PARSE_H
29
30 #include "lex.h"
31
32 /* Extern global variable declarations */
33 extern int java_error_count;
34 extern struct obstack temporary_obstack;
35 extern int quiet_flag;
36
37 #ifndef JC1_LITE
38 /* Function extern to java/ */
39 extern int int_fits_type_p (tree, tree);
40 extern tree stabilize_reference (tree);
41 #endif
42
43 /* Macros for verbose debug info */
44 #ifdef VERBOSE_SKELETON
45 #define RULE( rule ) printf ( "jv_yacc:%d: rule %s\n", lineno, rule )
46 #else
47 #define RULE( rule )
48 #endif
49
50 #ifdef VERBOSE_SKELETON
51 #undef SOURCE_FRONTEND_DEBUG
52 #define SOURCE_FRONTEND_DEBUG(X) \
53 {if (!quiet_flag) {printf ("* "); printf X; putchar ('\n');} }
54 #else
55 #define SOURCE_FRONTEND_DEBUG(X)
56 #endif
57
58 /* Macro for error recovering */
59 #ifdef YYDEBUG
60 #define RECOVERED \
61 { if (!quiet_flag) {printf ("** Recovered\n");} }
62 #define DRECOVERED(s) \
63 { if (!quiet_flag) {printf ("** Recovered (%s)\n", #s);}}
64 #else
65 #define RECOVERED
66 #define DRECOVERED(s)
67 #endif
68
69 #define DRECOVER(s) {yyerrok; DRECOVERED(s);}
70 #define RECOVER {yyerrok; RECOVERED;}
71
72 #define YYERROR_NOW ctxp->java_error_flag = 1
73 #define YYNOT_TWICE if (ctxp->prevent_ese != lineno)
74
75 /* Accepted modifiers */
76 #define CLASS_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT|ACC_FINAL|ACC_STRICT
77 #define FIELD_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_FINAL| \
78 ACC_STATIC|ACC_TRANSIENT|ACC_VOLATILE
79 #define METHOD_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_PRIVATE|ACC_ABSTRACT| \
80 ACC_STATIC|ACC_FINAL|ACC_SYNCHRONIZED|ACC_NATIVE| \
81 ACC_STRICT
82 #define INTERFACE_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT|ACC_STRICT
83 #define INTERFACE_INNER_MODIFIERS ACC_PUBLIC|ACC_PROTECTED|ACC_ABSTRACT| \
84 ACC_STATIC|ACC_PRIVATE
85 #define INTERFACE_METHOD_MODIFIERS ACC_PUBLIC|ACC_ABSTRACT
86 #define INTERFACE_FIELD_MODIFIERS ACC_PUBLIC|ACC_STATIC|ACC_FINAL
87
88 /* Getting a modifier WFL */
89 #define MODIFIER_WFL(M) (ctxp->modifier_ctx [(M) - PUBLIC_TK])
90
91 /* Check on modifiers */
92 #define THIS_MODIFIER_ONLY(f, m, v, count, l) \
93 if ((f) & (m)) \
94 { \
95 tree node = MODIFIER_WFL (v); \
96 if ((l) \
97 && ((EXPR_WFL_COLNO (node) > EXPR_WFL_COLNO (l)) \
98 || (EXPR_WFL_LINENO (node) > EXPR_WFL_LINENO (l)))) \
99 l = node; \
100 else if (!(l)) \
101 l = node; \
102 count++; \
103 }
104
105 #define ABSTRACT_CHECK(FLAG, V, CL, S) \
106 if ((FLAG) & (V)) \
107 parse_error_context ((CL), "%s method can't be abstract", (S));
108
109 #define JCONSTRUCTOR_CHECK(FLAG, V, CL, S) \
110 if ((FLAG) & (V)) \
111 parse_error_context ((CL), "Constructor can't be %s", (S)); \
112
113 /* Misc. */
114 #define exit_java_complete_class() \
115 { \
116 return; \
117 }
118
119 #define CLASS_OR_INTERFACE(decl, s1, s2) \
120 (decl ? \
121 ((get_access_flags_from_decl (TYPE_NAME (TREE_TYPE (decl))) \
122 & ACC_INTERFACE) ? \
123 s2 : s1) : ((s1 [0]=='S'|| s1 [0]=='s') ? \
124 (s1 [0]=='S' ? "Supertype" : "supertype") : \
125 (s1 [0] > 'A' ? "Type" : "type")))
126
127 #define GET_REAL_TYPE(TYPE) \
128 (TREE_CODE (TYPE) == TREE_LIST ? TREE_PURPOSE (TYPE) : TYPE)
129
130 /* Get TYPE name string, regardless whether TYPE is a class or an
131 array. */
132 #define GET_TYPE_NAME(TYPE) \
133 (TREE_CODE (TYPE_NAME (TYPE)) == IDENTIFIER_NODE ? \
134 IDENTIFIER_POINTER (TYPE_NAME (TYPE)) : \
135 IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (TYPE))))
136
137 /* Pedantic warning on obsolete modifiers. Note: when cl is NULL,
138 flags was set artificially, such as for a interface method */
139 #define OBSOLETE_MODIFIER_WARNING(cl, flags, __modifier, arg) \
140 { \
141 if (flag_redundant && (cl) && ((flags) & (__modifier))) \
142 parse_warning_context (cl, \
143 "Discouraged redundant use of `%s' modifier in declaration of %s", \
144 java_accstring_lookup (__modifier), arg); \
145 }
146 #define OBSOLETE_MODIFIER_WARNING2(cl, flags, __modifier, arg1, arg2) \
147 { \
148 if (flag_redundant && (cl) && ((flags) & (__modifier))) \
149 parse_warning_context (cl, \
150 "Discouraged redundant use of `%s' modifier in declaration of %s `%s'", \
151 java_accstring_lookup (__modifier), arg1, arg2);\
152 }
153
154 /* Quickly build a temporary pointer on hypothetical type NAME. */
155 #define BUILD_PTR_FROM_NAME(ptr, name) \
156 do { \
157 ptr = build (POINTER_TYPE, NULL_TREE); \
158 TYPE_NAME (ptr) = name; \
159 } while (0)
160
161 #define INCOMPLETE_TYPE_P(NODE) \
162 ((TREE_CODE (NODE) == POINTER_TYPE) \
163 && !TREE_TYPE (NODE) \
164 && TREE_CODE (TYPE_NAME (NODE)) == IDENTIFIER_NODE)
165
166 /* Set the EMIT_LINE_NOTE flag of a EXPR_WLF to 1 if debug information
167 are requested. Works in the context of a parser rule. */
168 #define JAVA_MAYBE_GENERATE_DEBUG_INFO(node) \
169 (debug_info_level != DINFO_LEVEL_NONE ? \
170 EXPR_WFL_EMIT_LINE_NOTE (node) = 1, node : node)
171
172 /* Types classification, according to the JLS, section 4.2 */
173 #define JFLOAT_TYPE_P(TYPE) (TYPE && TREE_CODE ((TYPE)) == REAL_TYPE)
174 #define JINTEGRAL_TYPE_P(TYPE) ((TYPE) \
175 && (TREE_CODE ((TYPE)) == INTEGER_TYPE \
176 || TREE_CODE ((TYPE)) == CHAR_TYPE))
177 #define JNUMERIC_TYPE_P(TYPE) ((TYPE) \
178 && (JFLOAT_TYPE_P ((TYPE)) \
179 || JINTEGRAL_TYPE_P ((TYPE))))
180 #define JPRIMITIVE_TYPE_P(TYPE) ((TYPE) \
181 && (JNUMERIC_TYPE_P ((TYPE)) \
182 || TREE_CODE ((TYPE)) == BOOLEAN_TYPE))
183
184 #define JBSC_TYPE_P(TYPE) ((TYPE) && (((TYPE) == byte_type_node) \
185 || ((TYPE) == short_type_node) \
186 || ((TYPE) == char_type_node)))
187
188 /* Not defined in the LRM */
189 #define JSTRING_TYPE_P(TYPE) ((TYPE) \
190 && ((TYPE) == string_type_node || \
191 (TREE_CODE (TYPE) == POINTER_TYPE && \
192 TREE_TYPE (TYPE) == string_type_node)))
193 #define JSTRING_P(NODE) ((NODE) \
194 && (TREE_CODE (NODE) == STRING_CST \
195 || IS_CRAFTED_STRING_BUFFER_P (NODE) \
196 || JSTRING_TYPE_P (TREE_TYPE (NODE))))
197
198 #define JREFERENCE_TYPE_P(TYPE) ((TYPE) \
199 && (TREE_CODE (TYPE) == RECORD_TYPE \
200 || (TREE_CODE (TYPE) == POINTER_TYPE \
201 && TREE_CODE (TREE_TYPE (TYPE)) == \
202 RECORD_TYPE)))
203 #define JNULLP_TYPE_P(TYPE) ((TYPE) && (TREE_CODE (TYPE) == POINTER_TYPE) \
204 && (TYPE) == TREE_TYPE (null_pointer_node))
205
206 /* Other predicates */
207 #define JDECL_P(NODE) (NODE && (TREE_CODE (NODE) == PARM_DECL \
208 || TREE_CODE (NODE) == VAR_DECL \
209 || TREE_CODE (NODE) == FIELD_DECL))
210
211 #define TYPE_INTERFACE_P(TYPE) \
212 (CLASS_P (TYPE) && CLASS_INTERFACE (TYPE_NAME (TYPE)))
213
214 #define TYPE_CLASS_P(TYPE) (CLASS_P (TYPE) \
215 && !CLASS_INTERFACE (TYPE_NAME (TYPE)))
216
217 /* Identifier business related to 1.1 language extensions. */
218
219 #define IDENTIFIER_INNER_CLASS_OUTER_FIELD_ACCESS(NODE) \
220 (TREE_CODE (NODE) == IDENTIFIER_NODE && \
221 IDENTIFIER_LENGTH (NODE) >= 8 && \
222 IDENTIFIER_POINTER (NODE)[7] != '0')
223
224 /* Build the string val$<O> and store it into N. The is used to
225 construct the name of inner class hidden fields used to alias outer
226 scope local variables. */
227 #define MANGLE_OUTER_LOCAL_VARIABLE_NAME(N, O) \
228 { \
229 char *mangled_name; \
230 obstack_grow (&temporary_obstack, "val$", 4); \
231 obstack_grow (&temporary_obstack, \
232 IDENTIFIER_POINTER ((O)), IDENTIFIER_LENGTH ((O))); \
233 obstack_1grow (&temporary_obstack, '\0'); \
234 mangled_name = obstack_finish (&temporary_obstack); \
235 (N) = get_identifier (mangled_name); \
236 obstack_free (&temporary_obstack, mangled_name); \
237 }
238
239 /* Build the string parm$<O> and store in into the identifier N. This
240 is used to construct the name of hidden parameters used to
241 initialize outer scope aliases. */
242 #define MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_ID(N, O) \
243 { \
244 char *mangled_name; \
245 obstack_grow (&temporary_obstack, "parm$", 5); \
246 obstack_grow (&temporary_obstack, \
247 IDENTIFIER_POINTER ((O)), IDENTIFIER_LENGTH ((O))); \
248 obstack_1grow (&temporary_obstack, '\0'); \
249 mangled_name = obstack_finish (&temporary_obstack); \
250 (N) = get_identifier (mangled_name); \
251 obstack_free (&temporary_obstack, mangled_name); \
252 }
253
254 #define MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR(N, S) \
255 { \
256 char *mangled_name; \
257 obstack_grow (&temporary_obstack, "parm$", 5); \
258 obstack_grow (&temporary_obstack, (S), strlen ((S))); \
259 obstack_1grow (&temporary_obstack, '\0'); \
260 mangled_name = obstack_finish (&temporary_obstack); \
261 (N) = get_identifier (mangled_name); \
262 obstack_free (&temporary_obstack, mangled_name); \
263 }
264
265 /* Skip THIS and artificial parameters found in function decl M and
266 assign the result to C. We don't do that for $finit$, since it's
267 knowingly called with artificial parms. */
268 #define SKIP_THIS_AND_ARTIFICIAL_PARMS(C,M) \
269 { \
270 int i; \
271 (C) = TYPE_ARG_TYPES (TREE_TYPE ((M))); \
272 if (!METHOD_STATIC ((M))) \
273 (C) = TREE_CHAIN (C); \
274 if (DECL_CONSTRUCTOR_P ((M)) \
275 && PURE_INNER_CLASS_TYPE_P (DECL_CONTEXT ((M)))) \
276 (C) = TREE_CHAIN (C); \
277 if (!DECL_FINIT_P ((M))) \
278 for (i = DECL_FUNCTION_NAP ((M)); i; i--) \
279 (C) = TREE_CHAIN (C); \
280 }
281
282 /* Mark final parameters in method M, by comparison of the argument
283 list L. This macro is used to set the flag once the method has been
284 build. */
285 #define MARK_FINAL_PARMS(M, L) \
286 { \
287 tree current = TYPE_ARG_TYPES (TREE_TYPE ((M))); \
288 tree list = (L); \
289 if (!METHOD_STATIC ((M))) \
290 current = TREE_CHAIN (current); \
291 for (; current != end_params_node; \
292 current = TREE_CHAIN (current), list = TREE_CHAIN (list)) \
293 ARG_FINAL_P (current) = ARG_FINAL_P (list); \
294 if (current != list) \
295 abort (); \
296 }
297
298 /* Reset the ARG_FINAL_P that might have been set in method M args. */
299 #define UNMARK_FINAL_PARMS(M) \
300 { \
301 tree current; \
302 for (current = TYPE_ARG_TYPES (TREE_TYPE ((M))); \
303 current != end_params_node; current = TREE_CHAIN (current)) \
304 ARG_FINAL_P (current) = 0; \
305 }
306
307 /* Reverse a crafted parameter list as required. */
308 #define CRAFTED_PARAM_LIST_FIXUP(P) \
309 { \
310 if ((P)) \
311 { \
312 tree last = (P); \
313 (P) = nreverse (P); \
314 TREE_CHAIN (last) = end_params_node; \
315 } \
316 else \
317 (P) = end_params_node; \
318 }
319
320 /* Modes governing the creation of a alias initializer parameter
321 lists. AIPL stands for Alias Initializer Parameter List. */
322 enum {
323 AIPL_FUNCTION_CREATION, /* Suitable for artificial method creation */
324 AIPL_FUNCTION_DECLARATION, /* Suitable for declared methods */
325 AIPL_FUNCTION_CTOR_INVOCATION, /* Invocation of constructors */
326 AIPL_FUNCTION_FINIT_INVOCATION /* Invocation of $finit$ */
327 };
328
329 /* Standard error messages */
330 #define ERROR_CANT_CONVERT_TO_BOOLEAN(OPERATOR, NODE, TYPE) \
331 parse_error_context ((OPERATOR), \
332 "Incompatible type for `%s'. Can't convert `%s' to boolean", \
333 operator_string ((NODE)), lang_printable_name ((TYPE),0))
334
335 #define ERROR_CANT_CONVERT_TO_NUMERIC(OPERATOR, NODE, TYPE) \
336 parse_error_context ((OPERATOR), \
337 "Incompatible type for `%s'. Can't convert `%s' to numeric type", \
338 operator_string ((NODE)), lang_printable_name ((TYPE), 0))
339
340 #define ERROR_CAST_NEEDED_TO_INTEGRAL(OPERATOR, NODE, TYPE) \
341 do { \
342 tree _operator = (OPERATOR), _node = (NODE), _type = (TYPE); \
343 if (JPRIMITIVE_TYPE_P (_type)) \
344 parse_error_context (_operator, \
345 "Incompatible type for `%s'. Explicit cast needed to convert `%s' to integral",\
346 operator_string(_node), \
347 lang_printable_name (_type, 0)); \
348 else \
349 parse_error_context (_operator, \
350 "Incompatible type for `%s'. Can't convert `%s' to integral", \
351 operator_string(_node), \
352 lang_printable_name (_type, 0)); \
353 } while (0)
354
355 #define ERROR_VARIABLE_NOT_INITIALIZED(WFL, V) \
356 parse_error_context \
357 ((WFL), "Variable `%s' may not have been initialized", \
358 IDENTIFIER_POINTER (V))
359
360 /* Definition for loop handling. This is Java's own definition of a
361 loop body. See parse.y for documentation. It's valid once you hold
362 a loop's body (LOOP_EXPR_BODY) */
363
364 /* The loop main block is the one hold the condition and the loop body */
365 #define LOOP_EXPR_BODY_MAIN_BLOCK(NODE) TREE_OPERAND (NODE, 0)
366 /* And then there is the loop update block */
367 #define LOOP_EXPR_BODY_UPDATE_BLOCK(NODE) TREE_OPERAND (NODE, 1)
368
369 /* Inside the loop main block, there is the loop condition and the
370 loop body. They may be reversed if the loop being described is a
371 do-while loop. NOTE: if you use a WFL around the EXIT_EXPR so you
372 can issue debug info for it, the EXIT_EXPR will be one operand
373 further. */
374 #define LOOP_EXPR_BODY_CONDITION_EXPR(NODE, R) \
375 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 1 : 0))
376
377 /* Here is the labeled block the loop real body is encapsulated in */
378 #define LOOP_EXPR_BODY_LABELED_BODY(NODE, R) \
379 TREE_OPERAND (LOOP_EXPR_BODY_MAIN_BLOCK (NODE), (R ? 0 : 1))
380 /* And here is the loop's real body */
381 #define LOOP_EXPR_BODY_BODY_EXPR(NODE, R) \
382 LABELED_BLOCK_BODY (LOOP_EXPR_BODY_LABELED_BODY(NODE, R))
383
384 #define PUSH_LABELED_BLOCK(B) \
385 { \
386 TREE_CHAIN (B) = ctxp->current_labeled_block; \
387 ctxp->current_labeled_block = (B); \
388 }
389 #define POP_LABELED_BLOCK() \
390 ctxp->current_labeled_block = TREE_CHAIN (ctxp->current_labeled_block)
391
392 #define PUSH_LOOP(L) \
393 { \
394 TREE_CHAIN (L) = ctxp->current_loop; \
395 ctxp->current_loop = (L); \
396 }
397 #define POP_LOOP() ctxp->current_loop = TREE_CHAIN (ctxp->current_loop)
398
399 #define PUSH_EXCEPTIONS(E) \
400 currently_caught_type_list = \
401 tree_cons (NULL_TREE, (E), currently_caught_type_list);
402
403 #define POP_EXCEPTIONS() \
404 currently_caught_type_list = TREE_CHAIN (currently_caught_type_list)
405
406 /* Check that we're inside a try block. */
407 #define IN_TRY_BLOCK_P() \
408 (currently_caught_type_list \
409 && ((TREE_VALUE (currently_caught_type_list) != \
410 DECL_FUNCTION_THROWS (current_function_decl)) \
411 || TREE_CHAIN (currently_caught_type_list)))
412
413 /* Check that we have exceptions in E. */
414 #define EXCEPTIONS_P(E) ((E) ? TREE_VALUE (E) : NULL_TREE)
415
416 /* Anonymous array access */
417 #define ANONYMOUS_ARRAY_BASE_TYPE(N) TREE_OPERAND ((N), 0)
418 #define ANONYMOUS_ARRAY_DIMS_SIG(N) TREE_OPERAND ((N), 1)
419 #define ANONYMOUS_ARRAY_INITIALIZER(N) TREE_OPERAND ((N), 2)
420
421 /* Invocation modes, as returned by invocation_mode (). */
422 enum {
423 INVOKE_STATIC,
424 INVOKE_NONVIRTUAL,
425 INVOKE_SUPER,
426 INVOKE_INTERFACE,
427 INVOKE_VIRTUAL
428 };
429
430 /* Unresolved type identifiers handling. When we process the source
431 code, we blindly accept an unknown type identifier and try to
432 resolve it later. When an unknown type identifier is encountered
433 and used, we record in a struct jdep element what the incomplete
434 type is and what it should patch. Later, java_complete_class will
435 process all classes known to have unresolved type
436 dependencies. Within each of these classes, this routine will
437 process unresolved type dependencies (JDEP_TO_RESOLVE), patch what
438 needs to be patched in the dependent tree node (JDEP_GET_PATCH,
439 JDEP_APPLY_PATCH) and perform other actions dictated by the context
440 of the patch (JDEP_KIND). The ideas are: we patch only what needs
441 to be patched, and with java_complete_class called at the right
442 time, we will start processing incomplete function bodies tree
443 nodes with everything external to function's bodies already
444 completed, it makes things much simpler. */
445
446 enum jdep_code {
447 JDEP_NO_PATCH, /* Must be first */
448 JDEP_SUPER, /* Patch the type of one type
449 supertype. Requires some check
450 before it's done */
451 JDEP_FIELD, /* Patch the type of a class field */
452
453 /* JDEP_{METHOD,METHOD_RETURN,METHOD_END} to be kept in order */
454 JDEP_METHOD, /* Mark the beginning of the patching
455 of a method declaration, including
456 it's arguments */
457 JDEP_METHOD_RETURN, /* Mark the beginning of the patching
458 of a method declaration. Arguments
459 aren't patched, only the returned
460 type is */
461 JDEP_METHOD_END, /* Mark the end of the patching of a
462 method declaration. It indicates
463 that it's time to compute and
464 install a new signature */
465
466 JDEP_INTERFACE, /* Patch the type of a Class/interface
467 extension */
468 JDEP_VARIABLE, /* Patch the type of a variable declaration */
469 JDEP_PARM, /* Patch the type of a parm declaration */
470 JDEP_TYPE, /* Patch a random tree node type,
471 without the need for any specific
472 actions */
473 JDEP_EXCEPTION, /* Patch exceptions specified by `throws' */
474 JDEP_ANONYMOUS /* Patch anonymous classes
475 (implementation or extension.) */
476
477 };
478
479 typedef struct _jdep {
480 ENUM_BITFIELD(jdep_code) kind : 8; /* Type of patch */
481
482 int flag0 : 1; /* Some flags */
483 tree decl; /* Tied decl/or WFL */
484 tree solv; /* What to solve */
485 tree wfl; /* Where thing to resolve where found */
486 tree misc; /* Miscellaneous info (optional). */
487 tree enclosing; /* The enclosing (current) class */
488 tree *patch; /* Address of a location to patch */
489 struct _jdep *next; /* Linked list */
490 } jdep;
491
492
493 #define JDEP_DECL(J) ((J)->decl)
494 #define JDEP_DECL_WFL(J) ((J)->decl)
495 #define JDEP_KIND(J) ((J)->kind)
496 #define JDEP_WFL(J) ((J)->wfl)
497 #define JDEP_MISC(J) ((J)->misc)
498 #define JDEP_ENCLOSING(J) ((J)->enclosing)
499 #define JDEP_CLASS(J) ((J)->class)
500 #define JDEP_APPLY_PATCH(J,P) (*(J)->patch = (P))
501 #define JDEP_GET_PATCH(J) ((J)->patch)
502 #define JDEP_CHAIN(J) ((J)->next)
503 #define JDEP_TO_RESOLVE(J) ((J)->solv)
504 #define JDEP_RESOLVED_DECL(J) ((J)->solv)
505 #define JDEP_RESOLVED(J, D) ((J)->solv = D)
506 #define JDEP_RESOLVED_P(J) \
507 (!(J)->solv || TREE_CODE ((J)->solv) != POINTER_TYPE)
508
509 struct jdeplist_s {
510 jdep *first;
511 jdep *last;
512 struct jdeplist_s *next;
513 };
514 typedef struct jdeplist_s jdeplist;
515
516 #define CLASSD_FIRST(CD) ((CD)->first)
517 #define CLASSD_LAST(CD) ((CD)->last)
518 #define CLASSD_CHAIN(CD) ((CD)->next)
519
520 #define JDEP_INSERT(L,J) \
521 { \
522 if (!(L)->first) \
523 (L)->last = (L)->first = (J); \
524 else \
525 { \
526 JDEP_CHAIN ((L)->last) = (J); \
527 (L)->last = (J); \
528 } \
529 }
530
531 /* if TYPE can't be resolved, obtain something suitable for its
532 resolution (TYPE is saved in SAVE before being changed). and set
533 CHAIN to 1. Otherwise, type is set to something usable. CHAIN is
534 usually used to determine that a new DEP must be installed on TYPE.
535 Note that when compiling java.lang.Object, references to Object are
536 java.lang.Object. */
537 #define SET_TYPE_FOR_RESOLUTION(TYPE, SAVE, CHAIN) \
538 { \
539 tree _returned_type; \
540 (CHAIN) = 0; \
541 if (TREE_TYPE (GET_CPC ()) == object_type_node \
542 && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION \
543 && EXPR_WFL_NODE (TYPE) == unqualified_object_id_node) \
544 (TYPE) = object_type_node; \
545 else \
546 { \
547 if (unresolved_type_p (type, &_returned_type)) \
548 { \
549 if (_returned_type) \
550 (TYPE) = _returned_type; \
551 else \
552 { \
553 tree _type; \
554 WFL_STRIP_BRACKET (_type, TYPE); \
555 (SAVE) = (_type); \
556 (TYPE) = obtain_incomplete_type (TYPE); \
557 CHAIN = 1; \
558 } \
559 } \
560 } \
561 }
562
563 #define WFL_STRIP_BRACKET(TARGET, TYPE) \
564 { \
565 tree __type = (TYPE); \
566 if (TYPE && TREE_CODE (TYPE) == EXPR_WITH_FILE_LOCATION) \
567 { \
568 tree _node; \
569 if (build_type_name_from_array_name (EXPR_WFL_NODE (TYPE), &_node)) \
570 { \
571 tree _new = copy_node (TYPE); \
572 EXPR_WFL_NODE (_new) = _node; \
573 __type = _new; \
574 } \
575 } \
576 (TARGET) = __type; \
577 }
578
579 /* If NAME contains one or more trailing []s, NAMELEN will be the
580 adjusted to be the index of the last non bracket character in
581 NAME. ARRAY_DIMS will contain the number of []s found. */
582
583 #define STRING_STRIP_BRACKETS(NAME, NAMELEN, ARRAY_DIMS) \
584 { \
585 ARRAY_DIMS = 0; \
586 while (NAMELEN >= 2 && (NAME)[NAMELEN - 1] == ']') \
587 { \
588 NAMELEN -= 2; \
589 (ARRAY_DIMS)++; \
590 } \
591 }
592
593 /* Promote a type if it won't be registered as a patch */
594 #define PROMOTE_RECORD_IF_COMPLETE(TYPE, IS_INCOMPLETE) \
595 { \
596 if (!(IS_INCOMPLETE) && TREE_CODE (TYPE) == RECORD_TYPE) \
597 (TYPE) = promote_type (TYPE); \
598 }
599
600 /* Insert a DECL in the current block */
601 #define BLOCK_CHAIN_DECL(NODE) \
602 { \
603 TREE_CHAIN ((NODE)) = \
604 BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)); \
605 BLOCK_EXPR_DECLS (GET_CURRENT_BLOCK (current_function_decl)) = (NODE); \
606 }
607
608 /* Return the current block, either found in the body of the currently
609 declared function or in the current static block being defined. */
610 #define GET_CURRENT_BLOCK(F) ((F) ? DECL_FUNCTION_BODY ((F)) : \
611 current_static_block)
612
613 /* Merge an other line to the source line number of a decl. Used to
614 remember function's end. */
615 #define DECL_SOURCE_LINE_MERGE(DECL,NO) DECL_SOURCE_LINE(DECL) |= (NO << 16)
616
617 /* Retrieve those two info separately. */
618 #define DECL_SOURCE_LINE_FIRST(DECL) (DECL_SOURCE_LINE(DECL) & 0x0000ffff)
619 #define DECL_SOURCE_LINE_LAST(DECL) (DECL_SOURCE_LINE(DECL) >> 16)
620
621 /* Retrieve line/column from a WFL. */
622 #define EXPR_WFL_GET_LINECOL(V,LINE,COL) \
623 { \
624 (LINE) = (V) >> 12; \
625 (COL) = (V) & 0xfff; \
626 }
627 /* Add X to the column number information */
628 #define EXPR_WFL_ADD_COL(V, X) \
629 (V) = (((V) & 0xfffff000) | ((((V) & 0xfff) + (X)) & 0xfff))
630
631 /* Build a WFL for expression nodes */
632 #define BUILD_EXPR_WFL(NODE, WFL) \
633 build_expr_wfl ((NODE), input_filename, EXPR_WFL_LINENO ((WFL)), \
634 EXPR_WFL_COLNO ((WFL)))
635
636 #define EXPR_WFL_QUALIFICATION(WFL) TREE_OPERAND ((WFL), 2)
637 #define QUAL_WFL(NODE) TREE_PURPOSE (NODE)
638 #define QUAL_RESOLUTION(NODE) TREE_VALUE (NODE)
639 #define QUAL_DECL_TYPE(NODE) GET_SKIP_TYPE (NODE)
640
641 #define GET_SKIP_TYPE(NODE) \
642 (TREE_CODE (TREE_TYPE (NODE)) == POINTER_TYPE ? \
643 TREE_TYPE (TREE_TYPE (NODE)): TREE_TYPE (NODE))
644
645 /* Handy macros for the walk operation */
646 #define COMPLETE_CHECK_OP(NODE, N) \
647 { \
648 TREE_OPERAND ((NODE), (N)) = \
649 java_complete_tree (TREE_OPERAND ((NODE), (N))); \
650 if (TREE_OPERAND ((NODE), (N)) == error_mark_node) \
651 return error_mark_node; \
652 }
653 #define COMPLETE_CHECK_OP_0(NODE) COMPLETE_CHECK_OP(NODE, 0)
654 #define COMPLETE_CHECK_OP_1(NODE) COMPLETE_CHECK_OP(NODE, 1)
655 #define COMPLETE_CHECK_OP_2(NODE) COMPLETE_CHECK_OP(NODE, 2)
656
657 /* Building invocations: append(ARG) and StringBuffer(ARG) */
658 #define BUILD_APPEND(ARG) \
659 ((JSTRING_TYPE_P (TREE_TYPE (ARG)) || JPRIMITIVE_TYPE_P (TREE_TYPE (ARG))) \
660 ? build_method_invocation (wfl_append, \
661 ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE)\
662 : build_method_invocation (wfl_append, \
663 ARG ? build_tree_list (NULL, \
664 build1 (CONVERT_EXPR, \
665 object_type_node,\
666 (ARG))) \
667 : NULL_TREE))
668 #define BUILD_STRING_BUFFER(ARG) \
669 build_new_invocation (wfl_string_buffer, \
670 (ARG ? build_tree_list (NULL, (ARG)) : NULL_TREE))
671
672 #define BUILD_THROW(WHERE, WHAT) \
673 { \
674 (WHERE) = \
675 build (CALL_EXPR, void_type_node, \
676 build_address_of (throw_node), \
677 build_tree_list (NULL_TREE, (WHAT)), NULL_TREE); \
678 TREE_SIDE_EFFECTS ((WHERE)) = 1; \
679 }
680
681 /* Set wfl_operator for the most accurate error location */
682 #define SET_WFL_OPERATOR(WHICH, NODE, WFL) \
683 EXPR_WFL_LINECOL (WHICH) = \
684 (TREE_CODE (WFL) == EXPR_WITH_FILE_LOCATION ? \
685 EXPR_WFL_LINECOL (WFL) : EXPR_WFL_LINECOL (NODE))
686
687 #define PATCH_METHOD_RETURN_ERROR() \
688 { \
689 if (ret_decl) \
690 *ret_decl = NULL_TREE; \
691 return error_mark_node; \
692 }
693
694 /* Convenient macro to check. Assumes that CLASS is a CLASS_DECL. */
695 #define CHECK_METHODS(CLASS) \
696 { \
697 if (CLASS_INTERFACE ((CLASS))) \
698 java_check_abstract_methods ((CLASS)); \
699 else \
700 java_check_regular_methods ((CLASS)); \
701 }
702
703 #define CLEAR_DEPRECATED ctxp->deprecated = 0
704
705 #define CHECK_DEPRECATED_NO_RESET(DECL) \
706 { \
707 if (ctxp->deprecated) \
708 DECL_DEPRECATED (DECL) = 1; \
709 }
710
711 /* Using and reseting the @deprecated tag flag */
712 #define CHECK_DEPRECATED(DECL) \
713 { \
714 if (ctxp->deprecated) \
715 DECL_DEPRECATED (DECL) = 1; \
716 ctxp->deprecated = 0; \
717 }
718
719 /* Register an import */
720 #define REGISTER_IMPORT(WHOLE, NAME) \
721 { \
722 IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P ((NAME)) = 1; \
723 ctxp->import_list = tree_cons ((WHOLE), (NAME), ctxp->import_list); \
724 }
725
726 /* Macro to access the osb (opening square bracket) count */
727 #define CURRENT_OSB(C) (C)->osb_number [(C)->osb_depth]
728
729 /* Macro for the xreferencer */
730 #define DECL_END_SOURCE_LINE(DECL) (DECL_CHECK (DECL)->decl.u1.i)
731 #define DECL_INHERITED_SOURCE_LINE(DECL) (DECL_CHECK (DECL)->decl.u2.i)
732
733 /* Parser context data structure. */
734 struct parser_ctxt GTY(()) {
735
736 const char *filename; /* Current filename */
737 struct parser_ctxt *next;
738
739 java_lexer * GTY((skip (""))) lexer; /* Current lexer state */
740 char marker_begining; /* Marker. Should be a sub-struct */
741 struct java_line * GTY ((skip (""))) p_line; /* Previous line */
742 struct java_line * GTY ((skip (""))) c_line; /* Current line */
743 java_lc elc; /* Error's line column info */
744 int ccb_indent; /* Keep track of {} indent, lexer */
745 int first_ccb_indent1; /* First { at ident level 1 */
746 int last_ccb_indent1; /* Last } at ident level 1 */
747 int parser_ccb_indent; /* Keep track of {} indent, parser */
748 int osb_depth; /* Current depth of [ in an expression */
749 int osb_limit; /* Limit of this depth */
750 int * GTY ((skip (""))) osb_number; /* Keep track of ['s */
751 int lineno; /* Current lineno */
752 char marker_end; /* End marker. Should be a sub-struct */
753
754 /* The flags section */
755
756 /* Indicates a context used for saving the parser status. The
757 context must be popped when the status is restored. */
758 unsigned saved_data_ctx:1;
759 /* Indicates that a context already contains saved data and that the
760 next save operation will require a new context to be created. */
761 unsigned saved_data:1;
762 /* Report error when true */
763 unsigned java_error_flag:1;
764 /* @deprecated tag seen */
765 unsigned deprecated:1;
766 /* Flag to report certain errors (fix this documentation. FIXME) */
767 unsigned class_err:1;
768
769 /* This section is used only if we compile jc1 */
770 tree modifier_ctx [12]; /* WFL of modifiers */
771 tree class_type; /* Current class */
772 tree function_decl; /* Current function decl, save/restore */
773
774 struct JCF * current_jcf; /* CU jcf */
775
776 int prevent_ese; /* Prevent expression statement error */
777
778 int formal_parameter_number; /* Number of parameters found */
779 int interface_number; /* # itfs declared to extend an itf def */
780
781 tree package; /* Defined package ID */
782
783 /* These two lists won't survive file traversal */
784 tree class_list; /* List of classes in a CU */
785 jdeplist * GTY((skip (""))) classd_list; /* Classe dependencies in a CU */
786
787 tree current_parsed_class; /* Class currently parsed */
788 tree current_parsed_class_un; /* Curr. parsed class unqualified name */
789
790 tree non_static_initialized; /* List of non static initialized fields */
791 tree static_initialized; /* List of static non final initialized */
792 tree instance_initializers; /* List of instance initializers stmts */
793
794 tree import_list; /* List of import */
795 tree import_demand_list; /* List of import on demand */
796
797 tree current_loop; /* List of the currently nested
798 loops/switches */
799 tree current_labeled_block; /* List of currently nested
800 labeled blocks. */
801
802 int pending_block; /* Pending block to close */
803
804 int explicit_constructor_p; /* >0 when processing an explicit
805 constructor. This flag is used to trap
806 illegal argument usage during an
807 explicit constructor invocation. */
808 };
809
810 /* A set of macros to push/pop/access the currently parsed class. */
811 #define GET_CPC_LIST() ctxp->current_parsed_class
812
813 /* Currently class being parsed is an inner class if an enclosing
814 class has been already pushed. This truth value is only valid prior
815 an inner class is pushed. After, use FIXME. */
816 #define CPC_INNER_P() GET_CPC_LIST ()
817
818 /* Get the currently parsed class DECL_TYPE node. */
819 #define GET_CPC() TREE_VALUE (GET_CPC_LIST ())
820
821 /* Get the currently parsed class unqualified IDENTIFIER_NODE. */
822 #define GET_CPC_UN() TREE_PURPOSE (GET_CPC_LIST ())
823
824 /* Get a parsed class unqualified IDENTIFIER_NODE from its CPC node. */
825 #define GET_CPC_UN_NODE(N) TREE_PURPOSE (N)
826
827 /* Get the currently parsed class DECL_TYPE from its CPC node. */
828 #define GET_CPC_DECL_NODE(N) TREE_VALUE (N)
829
830 /* The currently parsed enclosing currently parsed TREE_LIST node. */
831 #define GET_ENCLOSING_CPC() TREE_CHAIN (GET_CPC_LIST ())
832
833 /* Get the next enclosing context. */
834 #define GET_NEXT_ENCLOSING_CPC(C) TREE_CHAIN (C)
835
836 /* The DECL_TYPE node of the enclosing currently parsed
837 class. NULL_TREE if the currently parsed class isn't an inner
838 class. */
839 #define GET_ENCLOSING_CPC_CONTEXT() (GET_ENCLOSING_CPC () ? \
840 TREE_VALUE (GET_ENCLOSING_CPC ()) : \
841 NULL_TREE)
842
843 /* Make sure that innerclass T sits in an appropriate enclosing
844 context. */
845 #define INNER_ENCLOSING_SCOPE_CHECK(T) \
846 (INNER_CLASS_TYPE_P ((T)) && !ANONYMOUS_CLASS_P ((T)) \
847 && ((current_this \
848 /* We have a this and it's not the right one */ \
849 && (DECL_CONTEXT (TYPE_NAME ((T))) \
850 != TYPE_NAME (TREE_TYPE (TREE_TYPE (current_this)))) \
851 && !inherits_from_p (TREE_TYPE (TREE_TYPE (current_this)), \
852 TREE_TYPE (DECL_CONTEXT (TYPE_NAME (T)))) \
853 && !common_enclosing_context_p (TREE_TYPE (TREE_TYPE (current_this)), \
854 (T)) \
855 && INNER_CLASS_TYPE_P (TREE_TYPE (TREE_TYPE (current_this))) \
856 && !inherits_from_p \
857 (TREE_TYPE (DECL_CONTEXT \
858 (TYPE_NAME (TREE_TYPE (TREE_TYPE (current_this))))),\
859 TREE_TYPE (DECL_CONTEXT (TYPE_NAME (T))))) \
860 /* We don't have a this, which is OK if the current function is \
861 static. */ \
862 || (!current_this \
863 && current_function_decl \
864 && ! METHOD_STATIC (current_function_decl))))
865
866 /* Push macro. First argument to PUSH_CPC is a DECL_TYPE, second
867 argument is the unqualified currently parsed class name. */
868 #define PUSH_CPC(C,R) { \
869 ctxp->current_parsed_class = \
870 tree_cons ((R), (C), GET_CPC_LIST ()); \
871 }
872
873 /* In case of an error, push an error. */
874 #define PUSH_ERROR() PUSH_CPC (error_mark_node, error_mark_node)
875
876 /* Pop macro. Before we pop, we link the current inner class decl (if any)
877 to its enclosing class. */
878 #define POP_CPC() { \
879 link_nested_class_to_enclosing (); \
880 ctxp->current_parsed_class = \
881 TREE_CHAIN (GET_CPC_LIST ()); \
882 }
883
884 #define DEBUG_CPC() \
885 do \
886 { \
887 tree tmp = ctxp->current_parsed_class; \
888 while (tmp) \
889 { \
890 fprintf (stderr, "%s ", \
891 IDENTIFIER_POINTER (TREE_PURPOSE (tmp))); \
892 tmp = TREE_CHAIN (tmp); \
893 } \
894 } \
895 while (0);
896
897 /* Access to the various initializer statement lists */
898 #define CPC_INITIALIZER_LIST(C) ((C)->non_static_initialized)
899 #define CPC_STATIC_INITIALIZER_LIST(C) ((C)->static_initialized)
900 #define CPC_INSTANCE_INITIALIZER_LIST(C) ((C)->instance_initializers)
901
902 /* Access to the various initializer statements */
903 #define CPC_INITIALIZER_STMT(C) (TREE_PURPOSE (CPC_INITIALIZER_LIST (C)))
904 #define CPC_STATIC_INITIALIZER_STMT(C) \
905 (TREE_PURPOSE (CPC_STATIC_INITIALIZER_LIST (C)))
906 #define CPC_INSTANCE_INITIALIZER_STMT(C) \
907 (TREE_PURPOSE (CPC_INSTANCE_INITIALIZER_LIST (C)))
908
909 /* Set various initializer statements */
910 #define SET_CPC_INITIALIZER_STMT(C,S) \
911 if (CPC_INITIALIZER_LIST (C)) \
912 TREE_PURPOSE (CPC_INITIALIZER_LIST (C)) = (S);
913 #define SET_CPC_STATIC_INITIALIZER_STMT(C,S) \
914 if (CPC_STATIC_INITIALIZER_LIST (C)) \
915 TREE_PURPOSE (CPC_STATIC_INITIALIZER_LIST (C)) = (S);
916 #define SET_CPC_INSTANCE_INITIALIZER_STMT(C,S) \
917 if (CPC_INSTANCE_INITIALIZER_LIST(C)) \
918 TREE_PURPOSE (CPC_INSTANCE_INITIALIZER_LIST (C)) = (S);
919
920 /* This is used by the lexer to communicate with the parser. It is
921 set on an integer constant if the radix is 10, so that the parser
922 can correctly diagnose a numeric overflow. */
923 #define JAVA_RADIX10_FLAG(NODE) TREE_LANG_FLAG_0(NODE)
924
925 #ifndef JC1_LITE
926 void java_complete_class (void);
927 void java_check_circular_reference (void);
928 void java_fix_constructors (void);
929 void java_layout_classes (void);
930 void java_reorder_fields (void);
931 tree java_method_add_stmt (tree, tree);
932 int java_report_errors (void);
933 extern tree do_resolve_class (tree, tree, tree, tree);
934 #endif
935 char *java_get_line_col (const char *, int, int);
936 extern void reset_report (void);
937
938 /* Always in use, no matter what you compile */
939 void java_push_parser_context (void);
940 void java_pop_parser_context (int);
941 void java_init_lex (FILE *, const char *);
942 extern void java_parser_context_save_global (void);
943 extern void java_parser_context_restore_global (void);
944 int yyparse (void);
945 extern int java_parse (void);
946 extern void yyerror (const char *)
947 #ifdef JC1_LITE
948 ATTRIBUTE_NORETURN
949 #endif
950 ;
951 extern void java_expand_classes (void);
952
953 extern GTY(()) struct parser_ctxt *ctxp;
954 extern GTY(()) struct parser_ctxt *ctxp_for_generation;
955
956 #endif /* ! GCC_JAVA_PARSE_H */
Mirror of the offical gcc git repository hosted at gcc.gnu.org