1 /* YACC parser for C syntax and for Objective C. -*-c-*-
2 Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996,
3 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 /* This file defines the grammar of C and that of Objective C.
23 ifobjc ... end ifobjc conditionals contain code for Objective C only.
24 ifc ... end ifc conditionals contain code for C only.
25 Sed commands in Makefile.in are used to convert this file into
26 c-parse.y and into objc-parse.y. */
28 /* To whomever it may concern: I have heard that such a thing was once
29 written by AT&T, but I have never seen it. */
32 %expect 10 /* shift/reduce conflicts, and no reduce/reduce conflicts. */
38 #include "coretypes.h"
45 #include "c-pragma.h" /* For YYDEBUG definition, and parse_in. */
53 #ifdef MULTIBYTE_CHARS
61 /* Like YYERROR but do call yyerror. */
62 #define YYERROR1 { yyerror ("syntax error"); YYERROR; }
64 /* Like the default stack expander, except (1) use realloc when possible,
65 (2) impose no hard maxiumum on stack size, (3) REALLY do not use alloca.
67 Irritatingly, YYSTYPE is defined after this %{ %} block, so we cannot
68 give malloced_yyvs its proper type. This is ok since all we need from
69 it is to be able to free it. */
71 static short *malloced_yyss;
72 static void *malloced_yyvs;
74 #define yyoverflow(MSG, SS, SSSIZE, VS, VSSIZE, YYSSZ) \
79 newsize = *(YYSSZ) *= 2; \
83 really_call_realloc (*(SS), newsize * sizeof (short)); \
85 really_call_realloc (*(VS), newsize * sizeof (YYSTYPE)); \
89 newss = (short *) really_call_malloc (newsize * sizeof (short)); \
90 newvs = (YYSTYPE *) really_call_malloc (newsize * sizeof (YYSTYPE)); \
92 memcpy (newss, *(SS), (SSSIZE)); \
94 memcpy (newvs, *(VS), (VSSIZE)); \
96 if (!newss || !newvs) \
103 malloced_yyss = newss; \
104 malloced_yyvs = (void *) newvs; \
110 %union {long itype; tree ttype; enum tree_code code;
111 const char *filename; int lineno; }
113 /* All identifiers that are not reserved words
114 and are not declared typedefs in the current block */
117 /* All identifiers that are declared typedefs in the current block.
118 In some contexts, they are treated just like IDENTIFIER,
119 but they can also serve as typespecs in declarations. */
122 /* Reserved words that specify storage class.
123 yylval contains an IDENTIFIER_NODE which indicates which one. */
124 %token SCSPEC /* Storage class other than static. */
125 %token STATIC /* Static storage class. */
127 /* Reserved words that specify type.
128 yylval contains an IDENTIFIER_NODE which indicates which one. */
131 /* Reserved words that qualify type: "const", "volatile", or "restrict".
132 yylval contains an IDENTIFIER_NODE which indicates which one. */
135 /* Character or numeric constants.
136 yylval is the node for the constant. */
139 /* String constants in raw form.
140 yylval is a STRING_CST node. */
144 /* "...", used for functions with variable arglists. */
147 /* the reserved words */
148 /* SCO include files test "ASM", so use something else. */
149 %token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
150 %token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
151 %token ATTRIBUTE EXTENSION LABEL
152 %token REALPART IMAGPART VA_ARG CHOOSE_EXPR TYPES_COMPATIBLE_P
153 %token PTR_VALUE PTR_BASE PTR_EXTENT
155 /* function name can be a string const or a var decl. */
156 %token STRING_FUNC_NAME VAR_FUNC_NAME
158 /* Add precedence rules to solve dangling else s/r conflict */
162 /* Define the operator tokens and their precedences.
163 The value is an integer because, if used, it is the tree code
164 to use in the expression made from the operator. */
166 %right <code> ASSIGN '='
167 %right <code> '?' ':'
173 %left <code> EQCOMPARE
174 %left <code> ARITHCOMPARE
175 %left <code> LSHIFT RSHIFT
177 %left <code> '*' '/' '%'
178 %right <code> UNARY PLUSPLUS MINUSMINUS
180 %left <code> POINTSAT '.' '(' '['
182 /* The Objective-C keywords. These are included in C and in
183 Objective C, so that the token codes are the same in both. */
184 %token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
185 %token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
188 %type <ttype> ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
189 %type <ttype> BREAK CONTINUE RETURN GOTO ASM_KEYWORD SIZEOF TYPEOF ALIGNOF
191 %type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
192 %type <ttype> expr_no_commas cast_expr unary_expr primary STRING
193 %type <ttype> declspecs_nosc_nots_nosa_noea declspecs_nosc_nots_nosa_ea
194 %type <ttype> declspecs_nosc_nots_sa_noea declspecs_nosc_nots_sa_ea
195 %type <ttype> declspecs_nosc_ts_nosa_noea declspecs_nosc_ts_nosa_ea
196 %type <ttype> declspecs_nosc_ts_sa_noea declspecs_nosc_ts_sa_ea
197 %type <ttype> declspecs_sc_nots_nosa_noea declspecs_sc_nots_nosa_ea
198 %type <ttype> declspecs_sc_nots_sa_noea declspecs_sc_nots_sa_ea
199 %type <ttype> declspecs_sc_ts_nosa_noea declspecs_sc_ts_nosa_ea
200 %type <ttype> declspecs_sc_ts_sa_noea declspecs_sc_ts_sa_ea
201 %type <ttype> declspecs_ts declspecs_nots
202 %type <ttype> declspecs_ts_nosa declspecs_nots_nosa
203 %type <ttype> declspecs_nosc_ts declspecs_nosc_nots declspecs_nosc declspecs
204 %type <ttype> maybe_type_quals_attrs typespec_nonattr typespec_attr
205 %type <ttype> typespec_reserved_nonattr typespec_reserved_attr
206 %type <ttype> typespec_nonreserved_nonattr
208 %type <ttype> scspec SCSPEC STATIC TYPESPEC TYPE_QUAL maybe_type_qual
209 %type <ttype> initdecls notype_initdecls initdcl notype_initdcl
210 %type <ttype> init maybeasm
211 %type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
212 %type <ttype> maybe_attribute attributes attribute attribute_list attrib
213 %type <ttype> any_word extension
215 %type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
216 %type <ttype> do_stmt_start poplevel stmt label
218 %type <ttype> c99_block_start c99_block_end
219 %type <ttype> declarator
220 %type <ttype> notype_declarator after_type_declarator
221 %type <ttype> parm_declarator
222 %type <ttype> parm_declarator_starttypename parm_declarator_nostarttypename
223 %type <ttype> array_declarator
225 %type <ttype> structsp_attr structsp_nonattr
226 %type <ttype> component_decl_list component_decl_list2
227 %type <ttype> component_decl components components_notype component_declarator
228 %type <ttype> component_notype_declarator
229 %type <ttype> enumlist enumerator
230 %type <ttype> struct_head union_head enum_head
231 %type <ttype> typename absdcl absdcl1 absdcl1_ea absdcl1_noea
232 %type <ttype> direct_absdcl1 absdcl_maybe_attribute
233 %type <ttype> xexpr parms parm firstparm identifiers
235 %type <ttype> parmlist parmlist_1 parmlist_2
236 %type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
237 %type <ttype> identifiers_or_typenames
239 %type <itype> setspecs setspecs_fp
241 %type <filename> save_filename
242 %type <lineno> save_lineno
245 /* the Objective-C nonterminals */
247 %type <ttype> ivar_decl_list ivar_decls ivar_decl ivars ivar_declarator
248 %type <ttype> methoddecl unaryselector keywordselector selector
249 %type <ttype> keyworddecl receiver objcmessageexpr messageargs
250 %type <ttype> keywordexpr keywordarglist keywordarg
251 %type <ttype> myparms myparm optparmlist reservedwords objcselectorexpr
252 %type <ttype> selectorarg keywordnamelist keywordname objcencodeexpr
253 %type <ttype> objc_string non_empty_protocolrefs protocolrefs identifier_list objcprotocolexpr
255 %type <ttype> CLASSNAME OBJECTNAME
259 /* Number of statements (loosely speaking) and compound statements
261 static int stmt_count;
262 static int compstmt_count;
264 /* Input location of the end of the body of last simple_if;
265 used by the stmt-rule immediately after simple_if returns. */
266 static location_t if_stmt_locus;
269 /* List of types and structure classes of the current declaration. */
270 static GTY(()) tree current_declspecs;
271 static GTY(()) tree prefix_attributes;
273 /* List of all the attributes applying to the identifier currently being
274 declared; includes prefix_attributes and possibly some more attributes
275 just after a comma. */
276 static GTY(()) tree all_prefix_attributes;
278 /* Stack of saved values of current_declspecs, prefix_attributes and
279 all_prefix_attributes. */
280 static GTY(()) tree declspec_stack;
282 /* PUSH_DECLSPEC_STACK is called from setspecs; POP_DECLSPEC_STACK
283 should be called from the productions making use of setspecs. */
284 #define PUSH_DECLSPEC_STACK \
286 declspec_stack = tree_cons (build_tree_list (prefix_attributes, \
287 all_prefix_attributes), \
292 #define POP_DECLSPEC_STACK \
294 current_declspecs = TREE_VALUE (declspec_stack); \
295 prefix_attributes = TREE_PURPOSE (TREE_PURPOSE (declspec_stack)); \
296 all_prefix_attributes = TREE_VALUE (TREE_PURPOSE (declspec_stack)); \
297 declspec_stack = TREE_CHAIN (declspec_stack); \
300 /* For __extension__, save/restore the warning flags which are
301 controlled by __extension__. */
302 #define SAVE_EXT_FLAGS() \
304 | (warn_pointer_arith << 1) \
305 | (warn_traditional << 2) \
308 #define RESTORE_EXT_FLAGS(tval) \
310 int val = tree_low_cst (tval, 0); \
311 pedantic = val & 1; \
312 warn_pointer_arith = (val >> 1) & 1; \
313 warn_traditional = (val >> 2) & 1; \
314 flag_iso = (val >> 3) & 1; \
318 /* Objective-C specific parser/lexer information */
320 static enum tree_code objc_inherit_code;
321 static int objc_pq_context = 0, objc_public_flag = 0;
323 /* The following flag is needed to contextualize ObjC lexical analysis.
324 In some cases (e.g., 'int NSObject;'), it is undesirable to bind
325 an identifier to an ObjC class, even if a class with that name
327 static int objc_need_raw_identifier;
328 #define OBJC_NEED_RAW_IDENTIFIER(VAL) objc_need_raw_identifier = VAL
332 #define OBJC_NEED_RAW_IDENTIFIER(VAL) /* nothing */
335 static bool parsing_iso_function_signature;
337 /* Tell yyparse how to print a token's value, if yydebug is set. */
339 #define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
341 static void yyprint PARAMS ((FILE *, int, YYSTYPE));
342 static void yyerror PARAMS ((const char *));
343 static int yylexname PARAMS ((void));
344 static int yylexstring PARAMS ((void));
345 static inline int _yylex PARAMS ((void));
346 static int yylex PARAMS ((void));
347 static void init_reswords PARAMS ((void));
349 /* Initialisation routine for this file. */
361 pedwarn ("ISO C forbids an empty source file");
366 /* In case there were missing closebraces,
367 get us back to the global binding level. */
368 while (! global_bindings_p ())
370 /* __FUNCTION__ is defined at file scope (""). This
371 call may not be necessary as my tests indicate it
372 still works without it. */
373 finish_fname_decls ();
378 /* the reason for the strange actions in this rule
379 is so that notype_initdecls when reached via datadef
380 can find a valid list of type and sc specs in $0. */
383 {$<ttype>$ = NULL_TREE; } extdef
384 | extdefs {$<ttype>$ = NULL_TREE; ggc_collect(); } extdef
389 { parsing_iso_function_signature = false; } /* Reset after any external definition. */
398 | ASM_KEYWORD '(' expr ')' ';'
400 if ((TREE_CODE ($3) == ADDR_EXPR
401 && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
402 || TREE_CODE ($3) == STRING_CST)
405 error ("argument of `asm' is not a constant string"); }
407 { RESTORE_EXT_FLAGS ($1); }
411 setspecs notype_initdecls ';'
413 error ("ISO C forbids data definition with no type or storage class");
415 warning ("data definition has no type or storage class");
417 POP_DECLSPEC_STACK; }
418 | declspecs_nots setspecs notype_initdecls ';'
419 { POP_DECLSPEC_STACK; }
420 | declspecs_ts setspecs initdecls ';'
421 { POP_DECLSPEC_STACK; }
428 pedwarn ("ISO C does not allow extra `;' outside of a function"); }
432 declspecs_ts setspecs declarator
433 { if (! start_function (current_declspecs, $3,
434 all_prefix_attributes))
437 old_style_parm_decls save_filename save_lineno
438 { DECL_SOURCE_FILE (current_function_decl) = $6;
439 DECL_SOURCE_LINE (current_function_decl) = $7;
440 store_parm_decls (); }
442 { finish_function (0, 1);
443 POP_DECLSPEC_STACK; }
444 | declspecs_ts setspecs declarator error
445 { POP_DECLSPEC_STACK; }
446 | declspecs_nots setspecs notype_declarator
447 { if (! start_function (current_declspecs, $3,
448 all_prefix_attributes))
451 old_style_parm_decls save_filename save_lineno
452 { DECL_SOURCE_FILE (current_function_decl) = $6;
453 DECL_SOURCE_LINE (current_function_decl) = $7;
454 store_parm_decls (); }
456 { finish_function (0, 1);
457 POP_DECLSPEC_STACK; }
458 | declspecs_nots setspecs notype_declarator error
459 { POP_DECLSPEC_STACK; }
460 | setspecs notype_declarator
461 { if (! start_function (NULL_TREE, $2,
462 all_prefix_attributes))
465 old_style_parm_decls save_filename save_lineno
466 { DECL_SOURCE_FILE (current_function_decl) = $5;
467 DECL_SOURCE_LINE (current_function_decl) = $6;
468 store_parm_decls (); }
470 { finish_function (0, 1);
471 POP_DECLSPEC_STACK; }
472 | setspecs notype_declarator error
473 { POP_DECLSPEC_STACK; }
488 { $$ = NEGATE_EXPR; }
492 if (warn_traditional && !in_system_header)
493 warning ("traditional C rejects the unary plus operator");
497 { $$ = PREINCREMENT_EXPR; }
499 { $$ = PREDECREMENT_EXPR; }
501 { $$ = BIT_NOT_EXPR; }
503 { $$ = TRUTH_NOT_EXPR; }
506 expr: nonnull_exprlist
507 { $$ = build_compound_expr ($1); }
518 { $$ = build_tree_list (NULL_TREE, $1); }
519 | nonnull_exprlist ',' expr_no_commas
520 { chainon ($1, build_tree_list (NULL_TREE, $3)); }
525 | '*' cast_expr %prec UNARY
526 { $$ = build_indirect_ref ($2, "unary *"); }
527 /* __extension__ turns off -pedantic for following primary. */
528 | extension cast_expr %prec UNARY
530 RESTORE_EXT_FLAGS ($1); }
531 | unop cast_expr %prec UNARY
532 { $$ = build_unary_op ($1, $2, 0);
533 overflow_warning ($$); }
534 /* Refer to the address of a label as a pointer. */
536 { $$ = finish_label_address_expr ($2); }
537 | sizeof unary_expr %prec UNARY
539 if (TREE_CODE ($2) == COMPONENT_REF
540 && DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
541 error ("`sizeof' applied to a bit-field");
542 $$ = c_sizeof (TREE_TYPE ($2)); }
543 | sizeof '(' typename ')' %prec HYPERUNARY
545 $$ = c_sizeof (groktypename ($3)); }
546 | alignof unary_expr %prec UNARY
548 $$ = c_alignof_expr ($2); }
549 | alignof '(' typename ')' %prec HYPERUNARY
551 $$ = c_alignof (groktypename ($3)); }
552 | REALPART cast_expr %prec UNARY
553 { $$ = build_unary_op (REALPART_EXPR, $2, 0); }
554 | IMAGPART cast_expr %prec UNARY
555 { $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
559 SIZEOF { skip_evaluation++; }
563 ALIGNOF { skip_evaluation++; }
567 TYPEOF { skip_evaluation++; }
572 | '(' typename ')' cast_expr %prec UNARY
573 { $$ = c_cast_expr ($2, $4); }
578 | expr_no_commas '+' expr_no_commas
579 { $$ = parser_build_binary_op ($2, $1, $3); }
580 | expr_no_commas '-' expr_no_commas
581 { $$ = parser_build_binary_op ($2, $1, $3); }
582 | expr_no_commas '*' expr_no_commas
583 { $$ = parser_build_binary_op ($2, $1, $3); }
584 | expr_no_commas '/' expr_no_commas
585 { $$ = parser_build_binary_op ($2, $1, $3); }
586 | expr_no_commas '%' expr_no_commas
587 { $$ = parser_build_binary_op ($2, $1, $3); }
588 | expr_no_commas LSHIFT expr_no_commas
589 { $$ = parser_build_binary_op ($2, $1, $3); }
590 | expr_no_commas RSHIFT expr_no_commas
591 { $$ = parser_build_binary_op ($2, $1, $3); }
592 | expr_no_commas ARITHCOMPARE expr_no_commas
593 { $$ = parser_build_binary_op ($2, $1, $3); }
594 | expr_no_commas EQCOMPARE expr_no_commas
595 { $$ = parser_build_binary_op ($2, $1, $3); }
596 | expr_no_commas '&' expr_no_commas
597 { $$ = parser_build_binary_op ($2, $1, $3); }
598 | expr_no_commas '|' expr_no_commas
599 { $$ = parser_build_binary_op ($2, $1, $3); }
600 | expr_no_commas '^' expr_no_commas
601 { $$ = parser_build_binary_op ($2, $1, $3); }
602 | expr_no_commas ANDAND
603 { $1 = c_common_truthvalue_conversion
604 (default_conversion ($1));
605 skip_evaluation += $1 == boolean_false_node; }
607 { skip_evaluation -= $1 == boolean_false_node;
608 $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
609 | expr_no_commas OROR
610 { $1 = c_common_truthvalue_conversion
611 (default_conversion ($1));
612 skip_evaluation += $1 == boolean_true_node; }
614 { skip_evaluation -= $1 == boolean_true_node;
615 $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
617 { $1 = c_common_truthvalue_conversion
618 (default_conversion ($1));
619 skip_evaluation += $1 == boolean_false_node; }
621 { skip_evaluation += (($1 == boolean_true_node)
622 - ($1 == boolean_false_node)); }
624 { skip_evaluation -= $1 == boolean_true_node;
625 $$ = build_conditional_expr ($1, $4, $7); }
628 pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
629 /* Make sure first operand is calculated only once. */
630 $<ttype>2 = save_expr ($1);
631 $1 = c_common_truthvalue_conversion
632 (default_conversion ($<ttype>2));
633 skip_evaluation += $1 == boolean_true_node; }
635 { skip_evaluation -= $1 == boolean_true_node;
636 $$ = build_conditional_expr ($1, $<ttype>2, $5); }
637 | expr_no_commas '=' expr_no_commas
639 $$ = build_modify_expr ($1, NOP_EXPR, $3);
640 class = TREE_CODE_CLASS (TREE_CODE ($$));
641 if (IS_EXPR_CODE_CLASS (class))
642 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
644 | expr_no_commas ASSIGN expr_no_commas
646 $$ = build_modify_expr ($1, $2, $3);
647 /* This inhibits warnings in
648 c_common_truthvalue_conversion. */
649 class = TREE_CODE_CLASS (TREE_CODE ($$));
650 if (IS_EXPR_CODE_CLASS (class))
651 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
658 if (yychar == YYEMPTY)
660 $$ = build_external_ref ($1, yychar == '(');
664 { $$ = fix_string_type ($$); }
666 { $$ = fname_decl (C_RID_CODE ($$), $$); }
667 | '(' typename ')' '{'
668 { start_init (NULL_TREE, NULL, 0);
669 $2 = groktypename ($2);
670 really_start_incremental_init ($2); }
671 initlist_maybe_comma '}' %prec UNARY
672 { tree constructor = pop_init_level (0);
676 if (pedantic && ! flag_isoc99)
677 pedwarn ("ISO C89 forbids compound literals");
678 $$ = build_compound_literal (type, constructor);
681 { char class = TREE_CODE_CLASS (TREE_CODE ($2));
682 if (IS_EXPR_CODE_CLASS (class))
683 C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
686 { $$ = error_mark_node; }
687 | compstmt_primary_start compstmt_nostart ')'
688 { tree saved_last_tree;
691 pedwarn ("ISO C forbids braced-groups within expressions");
694 saved_last_tree = COMPOUND_BODY ($1);
695 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
696 last_tree = saved_last_tree;
697 TREE_CHAIN (last_tree) = NULL_TREE;
699 last_expr_type = void_type_node;
700 $$ = build1 (STMT_EXPR, last_expr_type, $1);
701 TREE_SIDE_EFFECTS ($$) = 1;
703 | compstmt_primary_start error ')'
706 last_tree = COMPOUND_BODY ($1);
707 TREE_CHAIN (last_tree) = NULL_TREE;
708 $$ = error_mark_node;
710 | primary '(' exprlist ')' %prec '.'
711 { $$ = build_function_call ($1, $3); }
712 | VA_ARG '(' expr_no_commas ',' typename ')'
713 { $$ = build_va_arg ($3, groktypename ($5)); }
715 | CHOOSE_EXPR '(' expr_no_commas ',' expr_no_commas ',' expr_no_commas ')'
721 if (TREE_CODE (c) != INTEGER_CST)
722 error ("first argument to __builtin_choose_expr not a constant");
723 $$ = integer_zerop (c) ? $7 : $5;
725 | TYPES_COMPATIBLE_P '(' typename ',' typename ')'
729 e1 = TYPE_MAIN_VARIANT (groktypename ($3));
730 e2 = TYPE_MAIN_VARIANT (groktypename ($5));
732 $$ = comptypes (e1, e2)
733 ? build_int_2 (1, 0) : build_int_2 (0, 0);
735 | primary '[' expr ']' %prec '.'
736 { $$ = build_array_ref ($1, $3); }
737 | primary '.' identifier
740 if (!is_public ($1, $3))
741 $$ = error_mark_node;
744 $$ = build_component_ref ($1, $3);
746 | primary POINTSAT identifier
748 tree expr = build_indirect_ref ($1, "->");
751 if (!is_public (expr, $3))
752 $$ = error_mark_node;
755 $$ = build_component_ref (expr, $3);
758 { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
760 { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
763 { $$ = build_message_expr ($1); }
765 { $$ = build_selector_expr ($1); }
767 { $$ = build_protocol_expr ($1); }
769 { $$ = build_encode_expr ($1); }
771 { $$ = build_objc_string_object ($1); }
776 /* Produces an STRING_CST with perhaps more STRING_CSTs chained
777 onto it, which is to be read as an ObjC string object. */
781 | objc_string '@' STRING
782 { $$ = chainon ($1, $3); }
786 old_style_parm_decls:
787 old_style_parm_decls_1
789 parsing_iso_function_signature = false; /* Reset after decls. */
793 old_style_parm_decls_1:
796 if (warn_traditional && !in_system_header
797 && parsing_iso_function_signature)
798 warning ("traditional C rejects ISO C style function definitions");
799 parsing_iso_function_signature = false; /* Reset after warning. */
804 /* The following are analogous to lineno_decl, decls and decl
805 except that they do not allow nested functions.
806 They are used for old-style parm decls. */
808 save_filename save_lineno datadecl
815 | datadecls lineno_datadecl
816 | lineno_datadecl errstmt
819 /* We don't allow prefix attributes here because they cause reduce/reduce
820 conflicts: we can't know whether we're parsing a function decl with
821 attribute suffix, or function defn with attribute prefix on first old
824 declspecs_ts_nosa setspecs initdecls ';'
825 { POP_DECLSPEC_STACK; }
826 | declspecs_nots_nosa setspecs notype_initdecls ';'
827 { POP_DECLSPEC_STACK; }
828 | declspecs_ts_nosa ';'
829 { shadow_tag_warned ($1, 1);
830 pedwarn ("empty declaration"); }
831 | declspecs_nots_nosa ';'
832 { pedwarn ("empty declaration"); }
835 /* This combination which saves a lineno before a decl
836 is the normal thing to use, rather than decl itself.
837 This is to avoid shift/reduce conflicts in contexts
838 where statement labels are allowed. */
840 save_filename save_lineno decl
844 /* records the type and storage class specs to use for processing
845 the declarators that follow.
846 Maintains a stack of outer-level values of current_declspecs,
847 for the sake of parm declarations nested in function declarators. */
848 setspecs: /* empty */
849 { pending_xref_error ();
851 split_specs_attrs ($<ttype>0,
852 ¤t_declspecs, &prefix_attributes);
853 all_prefix_attributes = prefix_attributes; }
856 /* Possibly attributes after a comma, which should reset all_prefix_attributes
857 to prefix_attributes with these ones chained on the front. */
860 { all_prefix_attributes = chainon ($1, prefix_attributes); }
864 declspecs_ts setspecs initdecls ';'
865 { POP_DECLSPEC_STACK; }
866 | declspecs_nots setspecs notype_initdecls ';'
867 { POP_DECLSPEC_STACK; }
868 | declspecs_ts setspecs nested_function
869 { POP_DECLSPEC_STACK; }
870 | declspecs_nots setspecs notype_nested_function
871 { POP_DECLSPEC_STACK; }
875 { RESTORE_EXT_FLAGS ($1); }
878 /* A list of declaration specifiers. These are:
880 - Storage class specifiers (scspec), which for GCC currently includes
881 function specifiers ("inline").
883 - Type specifiers (typespec_*).
885 - Type qualifiers (TYPE_QUAL).
887 - Attribute specifier lists (attributes).
889 These are stored as a TREE_LIST; the head of the list is the last
890 item in the specifier list. Each entry in the list has either a
891 TREE_PURPOSE that is an attribute specifier list, or a TREE_VALUE that
892 is a single other specifier or qualifier; and a TREE_CHAIN that is the
893 rest of the list. TREE_STATIC is set on the list if something other
894 than a storage class specifier or attribute has been seen; this is used
895 to warn for the obsolescent usage of storage class specifiers other than
896 at the start of the list. (Doing this properly would require function
897 specifiers to be handled separately from storage class specifiers.)
899 The various cases below are classified according to:
901 (a) Whether a storage class specifier is included or not; some
902 places in the grammar disallow storage class specifiers (_sc or _nosc).
904 (b) Whether a type specifier has been seen; after a type specifier,
905 a typedef name is an identifier to redeclare (_ts or _nots).
907 (c) Whether the list starts with an attribute; in certain places,
908 the grammar requires specifiers that don't start with an attribute
911 (d) Whether the list ends with an attribute (or a specifier such that
912 any following attribute would have been parsed as part of that specifier);
913 this avoids shift-reduce conflicts in the parsing of attributes
918 (i) Distinguish between function specifiers and storage class specifiers,
919 at least for the purpose of warnings about obsolescent usage.
921 (ii) Halve the number of productions here by eliminating the _sc/_nosc
922 distinction and instead checking where required that storage class
923 specifiers aren't present. */
925 /* Declspecs which contain at least one type specifier or typedef name.
926 (Just `const' or `volatile' is not enough.)
927 A typedef'd name following these is taken as a name to be declared.
928 Declspecs have a non-NULL TREE_VALUE, attributes do not. */
930 declspecs_nosc_nots_nosa_noea:
932 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
933 TREE_STATIC ($$) = 1; }
934 | declspecs_nosc_nots_nosa_noea TYPE_QUAL
935 { $$ = tree_cons (NULL_TREE, $2, $1);
936 TREE_STATIC ($$) = 1; }
937 | declspecs_nosc_nots_nosa_ea TYPE_QUAL
938 { $$ = tree_cons (NULL_TREE, $2, $1);
939 TREE_STATIC ($$) = 1; }
942 declspecs_nosc_nots_nosa_ea:
943 declspecs_nosc_nots_nosa_noea attributes
944 { $$ = tree_cons ($2, NULL_TREE, $1);
945 TREE_STATIC ($$) = TREE_STATIC ($1); }
948 declspecs_nosc_nots_sa_noea:
949 declspecs_nosc_nots_sa_noea TYPE_QUAL
950 { $$ = tree_cons (NULL_TREE, $2, $1);
951 TREE_STATIC ($$) = 1; }
952 | declspecs_nosc_nots_sa_ea TYPE_QUAL
953 { $$ = tree_cons (NULL_TREE, $2, $1);
954 TREE_STATIC ($$) = 1; }
957 declspecs_nosc_nots_sa_ea:
959 { $$ = tree_cons ($1, NULL_TREE, NULL_TREE);
960 TREE_STATIC ($$) = 0; }
961 | declspecs_nosc_nots_sa_noea attributes
962 { $$ = tree_cons ($2, NULL_TREE, $1);
963 TREE_STATIC ($$) = TREE_STATIC ($1); }
966 declspecs_nosc_ts_nosa_noea:
968 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
969 TREE_STATIC ($$) = 1; }
970 | declspecs_nosc_ts_nosa_noea TYPE_QUAL
971 { $$ = tree_cons (NULL_TREE, $2, $1);
972 TREE_STATIC ($$) = 1; }
973 | declspecs_nosc_ts_nosa_ea TYPE_QUAL
974 { $$ = tree_cons (NULL_TREE, $2, $1);
975 TREE_STATIC ($$) = 1; }
976 | declspecs_nosc_ts_nosa_noea typespec_reserved_nonattr
977 { $$ = tree_cons (NULL_TREE, $2, $1);
978 TREE_STATIC ($$) = 1; }
979 | declspecs_nosc_ts_nosa_ea typespec_reserved_nonattr
980 { $$ = tree_cons (NULL_TREE, $2, $1);
981 TREE_STATIC ($$) = 1; }
982 | declspecs_nosc_nots_nosa_noea typespec_nonattr
983 { $$ = tree_cons (NULL_TREE, $2, $1);
984 TREE_STATIC ($$) = 1; }
985 | declspecs_nosc_nots_nosa_ea typespec_nonattr
986 { $$ = tree_cons (NULL_TREE, $2, $1);
987 TREE_STATIC ($$) = 1; }
990 declspecs_nosc_ts_nosa_ea:
992 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
993 TREE_STATIC ($$) = 1; }
994 | declspecs_nosc_ts_nosa_noea attributes
995 { $$ = tree_cons ($2, NULL_TREE, $1);
996 TREE_STATIC ($$) = TREE_STATIC ($1); }
997 | declspecs_nosc_ts_nosa_noea typespec_reserved_attr
998 { $$ = tree_cons (NULL_TREE, $2, $1);
999 TREE_STATIC ($$) = 1; }
1000 | declspecs_nosc_ts_nosa_ea typespec_reserved_attr
1001 { $$ = tree_cons (NULL_TREE, $2, $1);
1002 TREE_STATIC ($$) = 1; }
1003 | declspecs_nosc_nots_nosa_noea typespec_attr
1004 { $$ = tree_cons (NULL_TREE, $2, $1);
1005 TREE_STATIC ($$) = 1; }
1006 | declspecs_nosc_nots_nosa_ea typespec_attr
1007 { $$ = tree_cons (NULL_TREE, $2, $1);
1008 TREE_STATIC ($$) = 1; }
1011 declspecs_nosc_ts_sa_noea:
1012 declspecs_nosc_ts_sa_noea TYPE_QUAL
1013 { $$ = tree_cons (NULL_TREE, $2, $1);
1014 TREE_STATIC ($$) = 1; }
1015 | declspecs_nosc_ts_sa_ea TYPE_QUAL
1016 { $$ = tree_cons (NULL_TREE, $2, $1);
1017 TREE_STATIC ($$) = 1; }
1018 | declspecs_nosc_ts_sa_noea typespec_reserved_nonattr
1019 { $$ = tree_cons (NULL_TREE, $2, $1);
1020 TREE_STATIC ($$) = 1; }
1021 | declspecs_nosc_ts_sa_ea typespec_reserved_nonattr
1022 { $$ = tree_cons (NULL_TREE, $2, $1);
1023 TREE_STATIC ($$) = 1; }
1024 | declspecs_nosc_nots_sa_noea typespec_nonattr
1025 { $$ = tree_cons (NULL_TREE, $2, $1);
1026 TREE_STATIC ($$) = 1; }
1027 | declspecs_nosc_nots_sa_ea typespec_nonattr
1028 { $$ = tree_cons (NULL_TREE, $2, $1);
1029 TREE_STATIC ($$) = 1; }
1032 declspecs_nosc_ts_sa_ea:
1033 declspecs_nosc_ts_sa_noea attributes
1034 { $$ = tree_cons ($2, NULL_TREE, $1);
1035 TREE_STATIC ($$) = TREE_STATIC ($1); }
1036 | declspecs_nosc_ts_sa_noea typespec_reserved_attr
1037 { $$ = tree_cons (NULL_TREE, $2, $1);
1038 TREE_STATIC ($$) = 1; }
1039 | declspecs_nosc_ts_sa_ea typespec_reserved_attr
1040 { $$ = tree_cons (NULL_TREE, $2, $1);
1041 TREE_STATIC ($$) = 1; }
1042 | declspecs_nosc_nots_sa_noea typespec_attr
1043 { $$ = tree_cons (NULL_TREE, $2, $1);
1044 TREE_STATIC ($$) = 1; }
1045 | declspecs_nosc_nots_sa_ea typespec_attr
1046 { $$ = tree_cons (NULL_TREE, $2, $1);
1047 TREE_STATIC ($$) = 1; }
1050 declspecs_sc_nots_nosa_noea:
1052 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
1053 TREE_STATIC ($$) = 0; }
1054 | declspecs_sc_nots_nosa_noea TYPE_QUAL
1055 { $$ = tree_cons (NULL_TREE, $2, $1);
1056 TREE_STATIC ($$) = 1; }
1057 | declspecs_sc_nots_nosa_ea TYPE_QUAL
1058 { $$ = tree_cons (NULL_TREE, $2, $1);
1059 TREE_STATIC ($$) = 1; }
1060 | declspecs_nosc_nots_nosa_noea scspec
1061 { if (extra_warnings && TREE_STATIC ($1))
1062 warning ("`%s' is not at beginning of declaration",
1063 IDENTIFIER_POINTER ($2));
1064 $$ = tree_cons (NULL_TREE, $2, $1);
1065 TREE_STATIC ($$) = TREE_STATIC ($1); }
1066 | declspecs_nosc_nots_nosa_ea scspec
1067 { if (extra_warnings && TREE_STATIC ($1))
1068 warning ("`%s' is not at beginning of declaration",
1069 IDENTIFIER_POINTER ($2));
1070 $$ = tree_cons (NULL_TREE, $2, $1);
1071 TREE_STATIC ($$) = TREE_STATIC ($1); }
1072 | declspecs_sc_nots_nosa_noea scspec
1073 { if (extra_warnings && TREE_STATIC ($1))
1074 warning ("`%s' is not at beginning of declaration",
1075 IDENTIFIER_POINTER ($2));
1076 $$ = tree_cons (NULL_TREE, $2, $1);
1077 TREE_STATIC ($$) = TREE_STATIC ($1); }
1078 | declspecs_sc_nots_nosa_ea scspec
1079 { if (extra_warnings && TREE_STATIC ($1))
1080 warning ("`%s' is not at beginning of declaration",
1081 IDENTIFIER_POINTER ($2));
1082 $$ = tree_cons (NULL_TREE, $2, $1);
1083 TREE_STATIC ($$) = TREE_STATIC ($1); }
1086 declspecs_sc_nots_nosa_ea:
1087 declspecs_sc_nots_nosa_noea attributes
1088 { $$ = tree_cons ($2, NULL_TREE, $1);
1089 TREE_STATIC ($$) = TREE_STATIC ($1); }
1092 declspecs_sc_nots_sa_noea:
1093 declspecs_sc_nots_sa_noea TYPE_QUAL
1094 { $$ = tree_cons (NULL_TREE, $2, $1);
1095 TREE_STATIC ($$) = 1; }
1096 | declspecs_sc_nots_sa_ea TYPE_QUAL
1097 { $$ = tree_cons (NULL_TREE, $2, $1);
1098 TREE_STATIC ($$) = 1; }
1099 | declspecs_nosc_nots_sa_noea scspec
1100 { if (extra_warnings && TREE_STATIC ($1))
1101 warning ("`%s' is not at beginning of declaration",
1102 IDENTIFIER_POINTER ($2));
1103 $$ = tree_cons (NULL_TREE, $2, $1);
1104 TREE_STATIC ($$) = TREE_STATIC ($1); }
1105 | declspecs_nosc_nots_sa_ea scspec
1106 { if (extra_warnings && TREE_STATIC ($1))
1107 warning ("`%s' is not at beginning of declaration",
1108 IDENTIFIER_POINTER ($2));
1109 $$ = tree_cons (NULL_TREE, $2, $1);
1110 TREE_STATIC ($$) = TREE_STATIC ($1); }
1111 | declspecs_sc_nots_sa_noea scspec
1112 { if (extra_warnings && TREE_STATIC ($1))
1113 warning ("`%s' is not at beginning of declaration",
1114 IDENTIFIER_POINTER ($2));
1115 $$ = tree_cons (NULL_TREE, $2, $1);
1116 TREE_STATIC ($$) = TREE_STATIC ($1); }
1117 | declspecs_sc_nots_sa_ea scspec
1118 { if (extra_warnings && TREE_STATIC ($1))
1119 warning ("`%s' is not at beginning of declaration",
1120 IDENTIFIER_POINTER ($2));
1121 $$ = tree_cons (NULL_TREE, $2, $1);
1122 TREE_STATIC ($$) = TREE_STATIC ($1); }
1125 declspecs_sc_nots_sa_ea:
1126 declspecs_sc_nots_sa_noea attributes
1127 { $$ = tree_cons ($2, NULL_TREE, $1);
1128 TREE_STATIC ($$) = TREE_STATIC ($1); }
1131 declspecs_sc_ts_nosa_noea:
1132 declspecs_sc_ts_nosa_noea TYPE_QUAL
1133 { $$ = tree_cons (NULL_TREE, $2, $1);
1134 TREE_STATIC ($$) = 1; }
1135 | declspecs_sc_ts_nosa_ea TYPE_QUAL
1136 { $$ = tree_cons (NULL_TREE, $2, $1);
1137 TREE_STATIC ($$) = 1; }
1138 | declspecs_sc_ts_nosa_noea typespec_reserved_nonattr
1139 { $$ = tree_cons (NULL_TREE, $2, $1);
1140 TREE_STATIC ($$) = 1; }
1141 | declspecs_sc_ts_nosa_ea typespec_reserved_nonattr
1142 { $$ = tree_cons (NULL_TREE, $2, $1);
1143 TREE_STATIC ($$) = 1; }
1144 | declspecs_sc_nots_nosa_noea typespec_nonattr
1145 { $$ = tree_cons (NULL_TREE, $2, $1);
1146 TREE_STATIC ($$) = 1; }
1147 | declspecs_sc_nots_nosa_ea typespec_nonattr
1148 { $$ = tree_cons (NULL_TREE, $2, $1);
1149 TREE_STATIC ($$) = 1; }
1150 | declspecs_nosc_ts_nosa_noea scspec
1151 { if (extra_warnings && TREE_STATIC ($1))
1152 warning ("`%s' is not at beginning of declaration",
1153 IDENTIFIER_POINTER ($2));
1154 $$ = tree_cons (NULL_TREE, $2, $1);
1155 TREE_STATIC ($$) = TREE_STATIC ($1); }
1156 | declspecs_nosc_ts_nosa_ea scspec
1157 { if (extra_warnings && TREE_STATIC ($1))
1158 warning ("`%s' is not at beginning of declaration",
1159 IDENTIFIER_POINTER ($2));
1160 $$ = tree_cons (NULL_TREE, $2, $1);
1161 TREE_STATIC ($$) = TREE_STATIC ($1); }
1162 | declspecs_sc_ts_nosa_noea scspec
1163 { if (extra_warnings && TREE_STATIC ($1))
1164 warning ("`%s' is not at beginning of declaration",
1165 IDENTIFIER_POINTER ($2));
1166 $$ = tree_cons (NULL_TREE, $2, $1);
1167 TREE_STATIC ($$) = TREE_STATIC ($1); }
1168 | declspecs_sc_ts_nosa_ea scspec
1169 { if (extra_warnings && TREE_STATIC ($1))
1170 warning ("`%s' is not at beginning of declaration",
1171 IDENTIFIER_POINTER ($2));
1172 $$ = tree_cons (NULL_TREE, $2, $1);
1173 TREE_STATIC ($$) = TREE_STATIC ($1); }
1176 declspecs_sc_ts_nosa_ea:
1177 declspecs_sc_ts_nosa_noea attributes
1178 { $$ = tree_cons ($2, NULL_TREE, $1);
1179 TREE_STATIC ($$) = TREE_STATIC ($1); }
1180 | declspecs_sc_ts_nosa_noea typespec_reserved_attr
1181 { $$ = tree_cons (NULL_TREE, $2, $1);
1182 TREE_STATIC ($$) = 1; }
1183 | declspecs_sc_ts_nosa_ea typespec_reserved_attr
1184 { $$ = tree_cons (NULL_TREE, $2, $1);
1185 TREE_STATIC ($$) = 1; }
1186 | declspecs_sc_nots_nosa_noea typespec_attr
1187 { $$ = tree_cons (NULL_TREE, $2, $1);
1188 TREE_STATIC ($$) = 1; }
1189 | declspecs_sc_nots_nosa_ea typespec_attr
1190 { $$ = tree_cons (NULL_TREE, $2, $1);
1191 TREE_STATIC ($$) = 1; }
1194 declspecs_sc_ts_sa_noea:
1195 declspecs_sc_ts_sa_noea TYPE_QUAL
1196 { $$ = tree_cons (NULL_TREE, $2, $1);
1197 TREE_STATIC ($$) = 1; }
1198 | declspecs_sc_ts_sa_ea TYPE_QUAL
1199 { $$ = tree_cons (NULL_TREE, $2, $1);
1200 TREE_STATIC ($$) = 1; }
1201 | declspecs_sc_ts_sa_noea typespec_reserved_nonattr
1202 { $$ = tree_cons (NULL_TREE, $2, $1);
1203 TREE_STATIC ($$) = 1; }
1204 | declspecs_sc_ts_sa_ea typespec_reserved_nonattr
1205 { $$ = tree_cons (NULL_TREE, $2, $1);
1206 TREE_STATIC ($$) = 1; }
1207 | declspecs_sc_nots_sa_noea typespec_nonattr
1208 { $$ = tree_cons (NULL_TREE, $2, $1);
1209 TREE_STATIC ($$) = 1; }
1210 | declspecs_sc_nots_sa_ea typespec_nonattr
1211 { $$ = tree_cons (NULL_TREE, $2, $1);
1212 TREE_STATIC ($$) = 1; }
1213 | declspecs_nosc_ts_sa_noea scspec
1214 { if (extra_warnings && TREE_STATIC ($1))
1215 warning ("`%s' is not at beginning of declaration",
1216 IDENTIFIER_POINTER ($2));
1217 $$ = tree_cons (NULL_TREE, $2, $1);
1218 TREE_STATIC ($$) = TREE_STATIC ($1); }
1219 | declspecs_nosc_ts_sa_ea scspec
1220 { if (extra_warnings && TREE_STATIC ($1))
1221 warning ("`%s' is not at beginning of declaration",
1222 IDENTIFIER_POINTER ($2));
1223 $$ = tree_cons (NULL_TREE, $2, $1);
1224 TREE_STATIC ($$) = TREE_STATIC ($1); }
1225 | declspecs_sc_ts_sa_noea scspec
1226 { if (extra_warnings && TREE_STATIC ($1))
1227 warning ("`%s' is not at beginning of declaration",
1228 IDENTIFIER_POINTER ($2));
1229 $$ = tree_cons (NULL_TREE, $2, $1);
1230 TREE_STATIC ($$) = TREE_STATIC ($1); }
1231 | declspecs_sc_ts_sa_ea scspec
1232 { if (extra_warnings && TREE_STATIC ($1))
1233 warning ("`%s' is not at beginning of declaration",
1234 IDENTIFIER_POINTER ($2));
1235 $$ = tree_cons (NULL_TREE, $2, $1);
1236 TREE_STATIC ($$) = TREE_STATIC ($1); }
1239 declspecs_sc_ts_sa_ea:
1240 declspecs_sc_ts_sa_noea attributes
1241 { $$ = tree_cons ($2, NULL_TREE, $1);
1242 TREE_STATIC ($$) = TREE_STATIC ($1); }
1243 | declspecs_sc_ts_sa_noea typespec_reserved_attr
1244 { $$ = tree_cons (NULL_TREE, $2, $1);
1245 TREE_STATIC ($$) = 1; }
1246 | declspecs_sc_ts_sa_ea typespec_reserved_attr
1247 { $$ = tree_cons (NULL_TREE, $2, $1);
1248 TREE_STATIC ($$) = 1; }
1249 | declspecs_sc_nots_sa_noea typespec_attr
1250 { $$ = tree_cons (NULL_TREE, $2, $1);
1251 TREE_STATIC ($$) = 1; }
1252 | declspecs_sc_nots_sa_ea typespec_attr
1253 { $$ = tree_cons (NULL_TREE, $2, $1);
1254 TREE_STATIC ($$) = 1; }
1257 /* Particular useful classes of declspecs. */
1259 declspecs_nosc_ts_nosa_noea
1260 | declspecs_nosc_ts_nosa_ea
1261 | declspecs_nosc_ts_sa_noea
1262 | declspecs_nosc_ts_sa_ea
1263 | declspecs_sc_ts_nosa_noea
1264 | declspecs_sc_ts_nosa_ea
1265 | declspecs_sc_ts_sa_noea
1266 | declspecs_sc_ts_sa_ea
1270 declspecs_nosc_nots_nosa_noea
1271 | declspecs_nosc_nots_nosa_ea
1272 | declspecs_nosc_nots_sa_noea
1273 | declspecs_nosc_nots_sa_ea
1274 | declspecs_sc_nots_nosa_noea
1275 | declspecs_sc_nots_nosa_ea
1276 | declspecs_sc_nots_sa_noea
1277 | declspecs_sc_nots_sa_ea
1281 declspecs_nosc_ts_nosa_noea
1282 | declspecs_nosc_ts_nosa_ea
1283 | declspecs_sc_ts_nosa_noea
1284 | declspecs_sc_ts_nosa_ea
1287 declspecs_nots_nosa:
1288 declspecs_nosc_nots_nosa_noea
1289 | declspecs_nosc_nots_nosa_ea
1290 | declspecs_sc_nots_nosa_noea
1291 | declspecs_sc_nots_nosa_ea
1295 declspecs_nosc_ts_nosa_noea
1296 | declspecs_nosc_ts_nosa_ea
1297 | declspecs_nosc_ts_sa_noea
1298 | declspecs_nosc_ts_sa_ea
1301 declspecs_nosc_nots:
1302 declspecs_nosc_nots_nosa_noea
1303 | declspecs_nosc_nots_nosa_ea
1304 | declspecs_nosc_nots_sa_noea
1305 | declspecs_nosc_nots_sa_ea
1309 declspecs_nosc_ts_nosa_noea
1310 | declspecs_nosc_ts_nosa_ea
1311 | declspecs_nosc_ts_sa_noea
1312 | declspecs_nosc_ts_sa_ea
1313 | declspecs_nosc_nots_nosa_noea
1314 | declspecs_nosc_nots_nosa_ea
1315 | declspecs_nosc_nots_sa_noea
1316 | declspecs_nosc_nots_sa_ea
1320 declspecs_nosc_nots_nosa_noea
1321 | declspecs_nosc_nots_nosa_ea
1322 | declspecs_nosc_nots_sa_noea
1323 | declspecs_nosc_nots_sa_ea
1324 | declspecs_nosc_ts_nosa_noea
1325 | declspecs_nosc_ts_nosa_ea
1326 | declspecs_nosc_ts_sa_noea
1327 | declspecs_nosc_ts_sa_ea
1328 | declspecs_sc_nots_nosa_noea
1329 | declspecs_sc_nots_nosa_ea
1330 | declspecs_sc_nots_sa_noea
1331 | declspecs_sc_nots_sa_ea
1332 | declspecs_sc_ts_nosa_noea
1333 | declspecs_sc_ts_nosa_ea
1334 | declspecs_sc_ts_sa_noea
1335 | declspecs_sc_ts_sa_ea
1338 /* A (possibly empty) sequence of type qualifiers and attributes. */
1339 maybe_type_quals_attrs:
1342 | declspecs_nosc_nots
1346 /* A type specifier (but not a type qualifier).
1347 Once we have seen one of these in a declaration,
1348 if a typedef name appears then it is being redeclared.
1350 The _reserved versions start with a reserved word and may appear anywhere
1351 in the declaration specifiers; the _nonreserved versions may only
1352 appear before any other type specifiers, and after that are (if names)
1355 FIXME: should the _nonreserved version be restricted to names being
1356 redeclared only? The other entries there relate only the GNU extensions
1357 and Objective C, and are historically parsed thus, and don't make sense
1358 after other type specifiers, but it might be cleaner to count them as
1361 _attr means: specifiers that either end with attributes,
1362 or are such that any following attributes would
1363 be parsed as part of the specifier.
1365 _nonattr: specifiers. */
1368 typespec_reserved_nonattr
1369 | typespec_nonreserved_nonattr
1373 typespec_reserved_attr
1376 typespec_reserved_nonattr:
1378 { OBJC_NEED_RAW_IDENTIFIER (1); }
1382 typespec_reserved_attr:
1386 typespec_nonreserved_nonattr:
1388 { /* For a typedef name, record the meaning, not the name.
1389 In case of `foo foo, bar;'. */
1390 $$ = lookup_name ($1); }
1392 | CLASSNAME protocolrefs
1393 { $$ = get_static_reference ($1, $2); }
1394 | OBJECTNAME protocolrefs
1395 { $$ = get_object_reference ($2); }
1397 /* Make "<SomeProtocol>" equivalent to "id <SomeProtocol>"
1398 - nisse@lysator.liu.se */
1399 | non_empty_protocolrefs
1400 { $$ = get_object_reference ($1); }
1402 | typeof '(' expr ')'
1403 { skip_evaluation--; $$ = TREE_TYPE ($3); }
1404 | typeof '(' typename ')'
1405 { skip_evaluation--; $$ = groktypename ($3); }
1408 /* typespec_nonreserved_attr does not exist. */
1412 | initdecls ',' maybe_resetattrs initdcl
1417 | notype_initdecls ',' maybe_resetattrs notype_initdcl
1423 | ASM_KEYWORD '(' STRING ')'
1428 declarator maybeasm maybe_attribute '='
1429 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1430 chainon ($3, all_prefix_attributes));
1431 start_init ($<ttype>$, $2, global_bindings_p ()); }
1433 /* Note how the declaration of the variable is in effect while its init is parsed! */
1435 finish_decl ($<ttype>5, $6, $2); }
1436 | declarator maybeasm maybe_attribute
1437 { tree d = start_decl ($1, current_declspecs, 0,
1438 chainon ($3, all_prefix_attributes));
1439 finish_decl (d, NULL_TREE, $2);
1444 notype_declarator maybeasm maybe_attribute '='
1445 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1446 chainon ($3, all_prefix_attributes));
1447 start_init ($<ttype>$, $2, global_bindings_p ()); }
1449 /* Note how the declaration of the variable is in effect while its init is parsed! */
1451 finish_decl ($<ttype>5, $6, $2); }
1452 | notype_declarator maybeasm maybe_attribute
1453 { tree d = start_decl ($1, current_declspecs, 0,
1454 chainon ($3, all_prefix_attributes));
1455 finish_decl (d, NULL_TREE, $2); }
1457 /* the * rules are dummies to accept the Apollo extended syntax
1458 so that the header files compile. */
1469 | attributes attribute
1470 { $$ = chainon ($1, $2); }
1474 ATTRIBUTE '(' '(' attribute_list ')' ')'
1481 | attribute_list ',' attrib
1482 { $$ = chainon ($1, $3); }
1489 { $$ = build_tree_list ($1, NULL_TREE); }
1490 | any_word '(' IDENTIFIER ')'
1491 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
1492 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
1493 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
1494 | any_word '(' exprlist ')'
1495 { $$ = build_tree_list ($1, $3); }
1498 /* This still leaves out most reserved keywords,
1499 shouldn't we include them? */
1513 /* Initializers. `init' is the entry point. */
1518 { really_start_incremental_init (NULL_TREE); }
1519 initlist_maybe_comma '}'
1520 { $$ = pop_init_level (0); }
1522 { $$ = error_mark_node; }
1525 /* `initlist_maybe_comma' is the guts of an initializer in braces. */
1526 initlist_maybe_comma:
1529 pedwarn ("ISO C forbids empty initializer braces"); }
1530 | initlist1 maybecomma
1535 | initlist1 ',' initelt
1538 /* `initelt' is a single element of an initializer.
1539 It may use braces. */
1541 designator_list '=' initval
1542 { if (pedantic && ! flag_isoc99)
1543 pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
1544 | designator initval
1546 pedwarn ("obsolete use of designated initializer without `='"); }
1548 { set_init_label ($1);
1550 pedwarn ("obsolete use of designated initializer with `:'"); }
1558 { push_init_level (0); }
1559 initlist_maybe_comma '}'
1560 { process_init_element (pop_init_level (0)); }
1562 { process_init_element ($1); }
1568 | designator_list designator
1573 { set_init_label ($2); }
1574 | '[' expr_no_commas ELLIPSIS expr_no_commas ']'
1575 { set_init_index ($2, $4);
1577 pedwarn ("ISO C forbids specifying range of elements to initialize"); }
1578 | '[' expr_no_commas ']'
1579 { set_init_index ($2, NULL_TREE); }
1585 pedwarn ("ISO C forbids nested functions");
1587 push_function_context ();
1588 if (! start_function (current_declspecs, $1,
1589 all_prefix_attributes))
1591 pop_function_context ();
1594 parsing_iso_function_signature = false; /* Don't warn about nested functions. */
1596 old_style_parm_decls save_filename save_lineno
1597 { tree decl = current_function_decl;
1598 DECL_SOURCE_FILE (decl) = $4;
1599 DECL_SOURCE_LINE (decl) = $5;
1600 store_parm_decls (); }
1601 /* This used to use compstmt_or_error.
1602 That caused a bug with input `f(g) int g {}',
1603 where the use of YYERROR1 above caused an error
1604 which then was handled by compstmt_or_error.
1605 There followed a repeated execution of that same rule,
1606 which called YYERROR1 again, and so on. */
1608 { tree decl = current_function_decl;
1609 finish_function (1, 1);
1610 pop_function_context ();
1611 add_decl_stmt (decl); }
1614 notype_nested_function:
1617 pedwarn ("ISO C forbids nested functions");
1619 push_function_context ();
1620 if (! start_function (current_declspecs, $1,
1621 all_prefix_attributes))
1623 pop_function_context ();
1626 parsing_iso_function_signature = false; /* Don't warn about nested functions. */
1628 old_style_parm_decls save_filename save_lineno
1629 { tree decl = current_function_decl;
1630 DECL_SOURCE_FILE (decl) = $4;
1631 DECL_SOURCE_LINE (decl) = $5;
1632 store_parm_decls (); }
1633 /* This used to use compstmt_or_error.
1634 That caused a bug with input `f(g) int g {}',
1635 where the use of YYERROR1 above caused an error
1636 which then was handled by compstmt_or_error.
1637 There followed a repeated execution of that same rule,
1638 which called YYERROR1 again, and so on. */
1640 { tree decl = current_function_decl;
1641 finish_function (1, 1);
1642 pop_function_context ();
1643 add_decl_stmt (decl); }
1646 /* Any kind of declarator (thus, all declarators allowed
1647 after an explicit typespec). */
1650 after_type_declarator
1654 /* A declarator that is allowed only after an explicit typespec. */
1656 after_type_declarator:
1657 '(' maybe_attribute after_type_declarator ')'
1658 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1659 | after_type_declarator '(' parmlist_or_identifiers %prec '.'
1660 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1661 /* | after_type_declarator '(' error ')' %prec '.'
1662 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1663 poplevel (0, 0, 0); } */
1664 | after_type_declarator array_declarator %prec '.'
1665 { $$ = set_array_declarator_type ($2, $1, 0); }
1666 | '*' maybe_type_quals_attrs after_type_declarator %prec UNARY
1667 { $$ = make_pointer_declarator ($2, $3); }
1674 /* Kinds of declarator that can appear in a parameter list
1675 in addition to notype_declarator. This is like after_type_declarator
1676 but does not allow a typedef name in parentheses as an identifier
1677 (because it would conflict with a function with that typedef as arg). */
1679 parm_declarator_starttypename
1680 | parm_declarator_nostarttypename
1683 parm_declarator_starttypename:
1684 parm_declarator_starttypename '(' parmlist_or_identifiers %prec '.'
1685 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1686 /* | parm_declarator_starttypename '(' error ')' %prec '.'
1687 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1688 poplevel (0, 0, 0); } */
1689 | parm_declarator_starttypename array_declarator %prec '.'
1690 { $$ = set_array_declarator_type ($2, $1, 0); }
1697 parm_declarator_nostarttypename:
1698 parm_declarator_nostarttypename '(' parmlist_or_identifiers %prec '.'
1699 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1700 /* | parm_declarator_nostarttypename '(' error ')' %prec '.'
1701 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1702 poplevel (0, 0, 0); } */
1703 | parm_declarator_nostarttypename array_declarator %prec '.'
1704 { $$ = set_array_declarator_type ($2, $1, 0); }
1705 | '*' maybe_type_quals_attrs parm_declarator_starttypename %prec UNARY
1706 { $$ = make_pointer_declarator ($2, $3); }
1707 | '*' maybe_type_quals_attrs parm_declarator_nostarttypename %prec UNARY
1708 { $$ = make_pointer_declarator ($2, $3); }
1709 | '(' maybe_attribute parm_declarator_nostarttypename ')'
1710 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1713 /* A declarator allowed whether or not there has been
1714 an explicit typespec. These cannot redeclare a typedef-name. */
1717 notype_declarator '(' parmlist_or_identifiers %prec '.'
1718 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1719 /* | notype_declarator '(' error ')' %prec '.'
1720 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1721 poplevel (0, 0, 0); } */
1722 | '(' maybe_attribute notype_declarator ')'
1723 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1724 | '*' maybe_type_quals_attrs notype_declarator %prec UNARY
1725 { $$ = make_pointer_declarator ($2, $3); }
1726 | notype_declarator array_declarator %prec '.'
1727 { $$ = set_array_declarator_type ($2, $1, 0); }
1752 /* structsp_attr: struct/union/enum specifiers that either
1753 end with attributes, or are such that any following attributes would
1754 be parsed as part of the struct/union/enum specifier.
1756 structsp_nonattr: other struct/union/enum specifiers. */
1759 struct_head identifier '{'
1760 { $$ = start_struct (RECORD_TYPE, $2);
1761 /* Start scope of tag before parsing components. */
1763 component_decl_list '}' maybe_attribute
1764 { $$ = finish_struct ($<ttype>4, nreverse ($5),
1765 chainon ($1, $7)); }
1766 | struct_head '{' component_decl_list '}' maybe_attribute
1767 { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
1768 nreverse ($3), chainon ($1, $5));
1770 | union_head identifier '{'
1771 { $$ = start_struct (UNION_TYPE, $2); }
1772 component_decl_list '}' maybe_attribute
1773 { $$ = finish_struct ($<ttype>4, nreverse ($5),
1774 chainon ($1, $7)); }
1775 | union_head '{' component_decl_list '}' maybe_attribute
1776 { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
1777 nreverse ($3), chainon ($1, $5));
1779 | enum_head identifier '{'
1780 { $$ = start_enum ($2); }
1781 enumlist maybecomma_warn '}' maybe_attribute
1782 { $$ = finish_enum ($<ttype>4, nreverse ($5),
1783 chainon ($1, $8)); }
1785 { $$ = start_enum (NULL_TREE); }
1786 enumlist maybecomma_warn '}' maybe_attribute
1787 { $$ = finish_enum ($<ttype>3, nreverse ($4),
1788 chainon ($1, $7)); }
1792 struct_head identifier
1793 { $$ = xref_tag (RECORD_TYPE, $2); }
1794 | union_head identifier
1795 { $$ = xref_tag (UNION_TYPE, $2); }
1796 | enum_head identifier
1797 { $$ = xref_tag (ENUMERAL_TYPE, $2);
1798 /* In ISO C, enumerated types can be referred to
1799 only if already defined. */
1800 if (pedantic && !COMPLETE_TYPE_P ($$))
1801 pedwarn ("ISO C forbids forward references to `enum' types"); }
1812 { if (pedantic && ! flag_isoc99)
1813 pedwarn ("comma at end of enumerator list"); }
1816 /* We chain the components in reverse order. They are put in forward
1817 order in structsp_attr.
1819 Note that component_declarator returns single decls, so components
1820 and components_notype can use TREE_CHAIN directly, wheras components
1821 and components_notype return lists (of comma separated decls), so
1822 component_decl_list and component_decl_list2 must use chainon.
1824 The theory behind all this is that there will be more semicolon
1825 separated fields than comma separated fields, and so we'll be
1826 minimizing the number of node traversals required by chainon. */
1828 component_decl_list:
1829 component_decl_list2
1831 | component_decl_list2 component_decl
1832 { $$ = chainon ($2, $1);
1833 pedwarn ("no semicolon at end of struct or union"); }
1836 component_decl_list2: /* empty */
1838 | component_decl_list2 component_decl ';'
1839 { $$ = chainon ($2, $1); }
1840 | component_decl_list2 ';'
1842 pedwarn ("extra semicolon in struct or union specified"); }
1844 /* foo(sizeof(struct{ @defs(ClassName)})); */
1845 | DEFS '(' CLASSNAME ')'
1847 tree interface = lookup_interface ($3);
1850 $$ = nreverse (get_class_ivars (interface));
1853 error ("cannot find interface declaration for `%s'",
1854 IDENTIFIER_POINTER ($3));
1862 declspecs_nosc_ts setspecs components
1864 POP_DECLSPEC_STACK; }
1865 | declspecs_nosc_ts setspecs save_filename save_lineno
1867 /* Support for unnamed structs or unions as members of
1868 structs or unions (which is [a] useful and [b] supports
1871 pedwarn ("ISO C doesn't support unnamed structs/unions");
1873 $$ = grokfield($3, $4, NULL, current_declspecs, NULL_TREE);
1874 POP_DECLSPEC_STACK; }
1875 | declspecs_nosc_nots setspecs components_notype
1877 POP_DECLSPEC_STACK; }
1878 | declspecs_nosc_nots
1880 pedwarn ("ISO C forbids member declarations with no members");
1885 | extension component_decl
1887 RESTORE_EXT_FLAGS ($1); }
1891 component_declarator
1892 | components ',' maybe_resetattrs component_declarator
1893 { TREE_CHAIN ($4) = $1; $$ = $4; }
1897 component_notype_declarator
1898 | components_notype ',' maybe_resetattrs component_notype_declarator
1899 { TREE_CHAIN ($4) = $1; $$ = $4; }
1902 component_declarator:
1903 save_filename save_lineno declarator maybe_attribute
1904 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1905 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1906 | save_filename save_lineno
1907 declarator ':' expr_no_commas maybe_attribute
1908 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1909 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1910 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1911 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1912 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1915 component_notype_declarator:
1916 save_filename save_lineno notype_declarator maybe_attribute
1917 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1918 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1919 | save_filename save_lineno
1920 notype_declarator ':' expr_no_commas maybe_attribute
1921 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1922 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1923 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1924 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1925 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1928 /* We chain the enumerators in reverse order.
1929 They are put in forward order in structsp_attr. */
1933 | enumlist ',' enumerator
1934 { if ($1 == error_mark_node)
1937 TREE_CHAIN ($3) = $1, $$ = $3; }
1939 { $$ = error_mark_node; }
1945 { $$ = build_enumerator ($1, NULL_TREE); }
1946 | identifier '=' expr_no_commas
1947 { $$ = build_enumerator ($1, $3); }
1952 { pending_xref_error ();
1955 { $$ = build_tree_list ($<ttype>2, $3); }
1958 absdcl: /* an absolute declarator */
1964 absdcl_maybe_attribute: /* absdcl maybe_attribute, but not just attributes */
1966 { $$ = build_tree_list (build_tree_list (current_declspecs,
1968 all_prefix_attributes); }
1970 { $$ = build_tree_list (build_tree_list (current_declspecs,
1972 all_prefix_attributes); }
1973 | absdcl1_noea attributes
1974 { $$ = build_tree_list (build_tree_list (current_declspecs,
1976 chainon ($2, all_prefix_attributes)); }
1979 absdcl1: /* a nonempty absolute declarator */
1986 | '*' maybe_type_quals_attrs absdcl1_noea
1987 { $$ = make_pointer_declarator ($2, $3); }
1991 '*' maybe_type_quals_attrs
1992 { $$ = make_pointer_declarator ($2, NULL_TREE); }
1993 | '*' maybe_type_quals_attrs absdcl1_ea
1994 { $$ = make_pointer_declarator ($2, $3); }
1998 '(' maybe_attribute absdcl1 ')'
1999 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
2000 | direct_absdcl1 '(' parmlist
2001 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
2002 | direct_absdcl1 array_declarator
2003 { $$ = set_array_declarator_type ($2, $1, 1); }
2005 { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
2007 { $$ = set_array_declarator_type ($1, NULL_TREE, 1); }
2010 /* The [...] part of a declarator for an array type. */
2013 '[' maybe_type_quals_attrs expr ']'
2014 { $$ = build_array_declarator ($3, $2, 0, 0); }
2015 | '[' maybe_type_quals_attrs ']'
2016 { $$ = build_array_declarator (NULL_TREE, $2, 0, 0); }
2017 | '[' maybe_type_quals_attrs '*' ']'
2018 { $$ = build_array_declarator (NULL_TREE, $2, 0, 1); }
2019 | '[' STATIC maybe_type_quals_attrs expr ']'
2020 { $$ = build_array_declarator ($4, $3, 1, 0); }
2021 /* declspecs_nosc_nots is a synonym for type_quals_attrs. */
2022 | '[' declspecs_nosc_nots STATIC expr ']'
2023 { $$ = build_array_declarator ($4, $2, 1, 0); }
2026 /* A nonempty series of declarations and statements (possibly followed by
2027 some labels) that can form the body of a compound statement.
2028 NOTE: we don't allow labels on declarations; this might seem like a
2029 natural extension, but there would be a conflict between attributes
2030 on the label and prefix attributes on the declaration. */
2033 lineno_stmt_decl_or_labels_ending_stmt
2034 | lineno_stmt_decl_or_labels_ending_decl
2035 | lineno_stmt_decl_or_labels_ending_label
2037 pedwarn ("deprecated use of label at end of compound statement");
2039 | lineno_stmt_decl_or_labels_ending_error
2042 lineno_stmt_decl_or_labels_ending_stmt:
2044 | lineno_stmt_decl_or_labels_ending_stmt lineno_stmt
2045 | lineno_stmt_decl_or_labels_ending_decl lineno_stmt
2046 | lineno_stmt_decl_or_labels_ending_label lineno_stmt
2047 | lineno_stmt_decl_or_labels_ending_error lineno_stmt
2050 lineno_stmt_decl_or_labels_ending_decl:
2052 | lineno_stmt_decl_or_labels_ending_stmt lineno_decl
2053 { if (pedantic && !flag_isoc99)
2054 pedwarn ("ISO C89 forbids mixed declarations and code"); }
2055 | lineno_stmt_decl_or_labels_ending_decl lineno_decl
2056 | lineno_stmt_decl_or_labels_ending_error lineno_decl
2059 lineno_stmt_decl_or_labels_ending_label:
2061 | lineno_stmt_decl_or_labels_ending_stmt lineno_label
2062 | lineno_stmt_decl_or_labels_ending_decl lineno_label
2063 | lineno_stmt_decl_or_labels_ending_label lineno_label
2064 | lineno_stmt_decl_or_labels_ending_error lineno_label
2067 lineno_stmt_decl_or_labels_ending_error:
2069 | lineno_stmt_decl_or_labels errstmt
2072 lineno_stmt_decl_or_labels:
2073 lineno_stmt_decl_or_labels_ending_stmt
2074 | lineno_stmt_decl_or_labels_ending_decl
2075 | lineno_stmt_decl_or_labels_ending_label
2076 | lineno_stmt_decl_or_labels_ending_error
2082 pushlevel: /* empty */
2085 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2087 if (objc_method_context)
2093 poplevel: /* empty */
2094 { $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
2097 /* Start and end blocks created for the new scopes of C99. */
2098 c99_block_start: /* empty */
2101 $$ = c_begin_compound_stmt ();
2104 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2106 if (objc_method_context)
2115 /* Productions using c99_block_start and c99_block_end will need to do what's
2116 in compstmt: RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); $$ = $2; where
2117 $1 is the value of c99_block_start and $2 of c99_block_end. */
2118 c99_block_end: /* empty */
2121 tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
2122 $$ = poplevel (kept_level_p (), 0, 0);
2123 SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
2124 = SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
2131 /* Read zero or more forward-declarations for labels
2132 that nested functions can jump to. */
2137 pedwarn ("ISO C forbids label declarations"); }
2142 | label_decls label_decl
2146 LABEL identifiers_or_typenames ';'
2148 for (link = $2; link; link = TREE_CHAIN (link))
2150 tree label = shadow_label (TREE_VALUE (link));
2151 C_DECLARED_LABEL_FLAG (label) = 1;
2152 add_decl_stmt (label);
2157 /* This is the body of a function definition.
2158 It causes syntax errors to ignore to the next openbrace. */
2165 compstmt_start: '{' { compstmt_count++;
2166 $$ = c_begin_compound_stmt (); }
2169 compstmt_nostart: '}'
2170 { $$ = convert (void_type_node, integer_zero_node); }
2171 | pushlevel maybe_label_decls compstmt_contents_nonempty '}' poplevel
2172 { $$ = poplevel (kept_level_p (), 1, 0);
2173 SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
2174 = SCOPE_STMT_BLOCK (TREE_VALUE ($5))
2178 compstmt_contents_nonempty:
2183 compstmt_primary_start:
2185 { if (current_function_decl == 0)
2187 error ("braced-group within expression allowed only inside a function");
2190 /* We must force a BLOCK for this level
2191 so that, if it is not expanded later,
2192 there is a way to turn off the entire subtree of blocks
2193 that are contained in it. */
2195 push_label_level ();
2197 $$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
2201 compstmt: compstmt_start compstmt_nostart
2202 { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2203 last_expr_type = NULL_TREE;
2207 /* Value is number of statements counted as of the closeparen. */
2209 if_prefix c99_block_lineno_labeled_stmt
2210 { c_finish_then (); }
2211 /* Make sure c_expand_end_cond is run once
2212 for each call to c_expand_start_cond.
2213 Otherwise a crash is likely. */
2218 /* We must build the IF_STMT node before parsing its
2219 condition so that STMT_LINENO refers to the line
2220 containing the "if", and not the line containing
2221 the close-parenthesis.
2223 c_begin_if_stmt returns the IF_STMT node, which
2224 we later pass to c_expand_start_cond to fill
2225 in the condition and other tidbits. */
2227 { $<ttype>$ = c_begin_if_stmt (); }
2229 { c_expand_start_cond (c_common_truthvalue_conversion ($4),
2230 compstmt_count,$<ttype>2);
2231 $<itype>$ = stmt_count;
2232 if_stmt_locus.file = $<filename>-2;
2233 if_stmt_locus.line = $<lineno>-1; }
2236 /* This is a subroutine of stmt.
2237 It is used twice, once for valid DO statements
2238 and once for catching errors in parsing the end test. */
2244 = add_stmt (build_stmt (DO_STMT, NULL_TREE,
2246 /* In the event that a parse error prevents
2247 parsing the complete do-statement, set the
2248 condition now. Otherwise, we can get crashes at
2249 RTL-generation time. */
2250 DO_COND ($<ttype>$) = error_mark_node; }
2251 c99_block_lineno_labeled_stmt WHILE
2253 RECHAIN_STMTS ($$, DO_BODY ($$)); }
2256 /* The forced readahead in here is because we might be at the end of a
2257 line, and the line and file won't be bumped until yylex absorbs the
2258 first token on the next line. */
2260 { if (yychar == YYEMPTY)
2262 $$ = input_filename; }
2266 { if (yychar == YYEMPTY)
2271 lineno_labeled_stmt:
2273 | lineno_label lineno_labeled_stmt
2276 /* Like lineno_labeled_stmt, but a block in C99. */
2277 c99_block_lineno_labeled_stmt:
2278 c99_block_start lineno_labeled_stmt c99_block_end
2280 RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); }
2284 save_filename save_lineno stmt
2287 STMT_LINENO ($3) = $2;
2288 /* ??? We currently have no way of recording
2289 the filename for a statement. This probably
2290 matters little in practice at the moment,
2291 but I suspect that problems will occur when
2292 doing inlining at the tree level. */
2298 save_filename save_lineno label
2301 STMT_LINENO ($3) = $2;
2306 select_or_iter_stmt:
2308 { c_expand_start_else ();
2309 $<itype>1 = stmt_count; }
2310 c99_block_lineno_labeled_stmt
2312 c_expand_end_cond ();
2313 if (extra_warnings && stmt_count == $<itype>1)
2314 warning ("empty body in an else-statement"); }
2315 | simple_if %prec IF
2316 { c_expand_end_cond ();
2317 /* This warning is here instead of in simple_if, because we
2318 do not want a warning if an empty if is followed by an
2319 else statement. Increment stmt_count so we don't
2320 give a second error if this is a nested `if'. */
2321 if (extra_warnings && stmt_count++ == $<itype>1)
2322 warning ("%Hempty body in an if-statement",
2324 /* Make sure c_expand_end_cond is run once
2325 for each call to c_expand_start_cond.
2326 Otherwise a crash is likely. */
2327 | simple_if ELSE error
2328 { c_expand_end_cond (); }
2329 /* We must build the WHILE_STMT node before parsing its
2330 condition so that STMT_LINENO refers to the line
2331 containing the "while", and not the line containing
2332 the close-parenthesis.
2334 c_begin_while_stmt returns the WHILE_STMT node, which
2335 we later pass to c_finish_while_stmt_cond to fill
2336 in the condition and other tidbits. */
2339 $<ttype>$ = c_begin_while_stmt (); }
2341 { $4 = c_common_truthvalue_conversion ($4);
2342 c_finish_while_stmt_cond
2343 (c_common_truthvalue_conversion ($4), $<ttype>2);
2344 $<ttype>$ = add_stmt ($<ttype>2); }
2345 c99_block_lineno_labeled_stmt
2346 { RECHAIN_STMTS ($<ttype>6, WHILE_BODY ($<ttype>6)); }
2349 { DO_COND ($1) = c_common_truthvalue_conversion ($3); }
2350 | do_stmt_start error
2353 { $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
2354 NULL_TREE, NULL_TREE);
2355 add_stmt ($<ttype>$); }
2358 RECHAIN_STMTS ($<ttype>2, FOR_INIT_STMT ($<ttype>2)); }
2361 FOR_COND ($<ttype>2)
2362 = c_common_truthvalue_conversion ($6); }
2364 { FOR_EXPR ($<ttype>2) = $9; }
2365 c99_block_lineno_labeled_stmt
2366 { RECHAIN_STMTS ($<ttype>2, FOR_BODY ($<ttype>2)); }
2367 | SWITCH '(' expr ')'
2369 $<ttype>$ = c_start_case ($3); }
2370 c99_block_lineno_labeled_stmt
2371 { c_finish_case (); }
2376 { add_stmt (build_stmt (EXPR_STMT, $1)); }
2378 { check_for_loop_decls (); }
2381 /* Parse a single real statement, not including any labels. */
2384 { stmt_count++; $$ = $1; }
2387 $$ = c_expand_expr_stmt ($1); }
2388 | c99_block_start select_or_iter_stmt c99_block_end
2390 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2394 $$ = add_stmt (build_break_stmt ()); }
2397 $$ = add_stmt (build_continue_stmt ()); }
2400 $$ = c_expand_return (NULL_TREE); }
2403 $$ = c_expand_return ($2); }
2404 | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
2406 $$ = simple_asm_stmt ($4); }
2407 /* This is the case with just output operands. */
2408 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
2410 $$ = build_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
2411 /* This is the case with input operands as well. */
2412 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2413 asm_operands ')' ';'
2415 $$ = build_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
2416 /* This is the case with clobbered registers as well. */
2417 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2418 asm_operands ':' asm_clobbers ')' ';'
2420 $$ = build_asm_stmt ($2, $4, $6, $8, $10); }
2421 | GOTO identifier ';'
2424 decl = lookup_label ($2);
2427 TREE_USED (decl) = 1;
2428 $$ = add_stmt (build_stmt (GOTO_STMT, decl));
2435 pedwarn ("ISO C forbids `goto *expr;'");
2437 $3 = convert (ptr_type_node, $3);
2438 $$ = add_stmt (build_stmt (GOTO_STMT, $3)); }
2443 /* Any kind of label, including jump labels and case labels.
2444 ANSI C accepts labels only before statements, but we allow them
2445 also at the end of a compound statement. */
2447 label: CASE expr_no_commas ':'
2449 $$ = do_case ($2, NULL_TREE); }
2450 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
2452 $$ = do_case ($2, $4); }
2455 $$ = do_case (NULL_TREE, NULL_TREE); }
2456 | identifier save_filename save_lineno ':' maybe_attribute
2457 { tree label = define_label ($2, $3, $1);
2461 decl_attributes (&label, $5, 0);
2462 $$ = add_stmt (build_stmt (LABEL_STMT, label));
2469 /* Either a type-qualifier or nothing. First thing in an `asm' statement. */
2473 { emit_line_note (input_filename, input_line);
2476 { emit_line_note (input_filename, input_line); }
2485 /* These are the operands other than the first string and colon
2486 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
2487 asm_operands: /* empty */
2489 | nonnull_asm_operands
2492 nonnull_asm_operands:
2494 | nonnull_asm_operands ',' asm_operand
2495 { $$ = chainon ($1, $3); }
2500 { $$ = build_tree_list (build_tree_list (NULL_TREE, $1), $3); }
2501 | '[' identifier ']' STRING '(' expr ')'
2502 { $2 = build_string (IDENTIFIER_LENGTH ($2),
2503 IDENTIFIER_POINTER ($2));
2504 $$ = build_tree_list (build_tree_list ($2, $4), $6); }
2509 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE); }
2510 | asm_clobbers ',' STRING
2511 { $$ = tree_cons (NULL_TREE, $3, $1); }
2514 /* This is what appears inside the parens in a function declarator.
2515 Its value is a list of ..._TYPE nodes. Attributes must appear here
2516 to avoid a conflict with their appearance after an open parenthesis
2517 in an abstract declarator, as in
2518 "void bar (int (__attribute__((__mode__(SI))) int foo));". */
2522 clear_parm_order ();
2523 declare_parm_level (0); }
2526 parmlist_tags_warning ();
2527 poplevel (0, 0, 0); }
2535 pedwarn ("ISO C forbids forward parameter declarations");
2536 /* Mark the forward decls as such. */
2537 for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
2538 TREE_ASM_WRITTEN (parm) = 1;
2539 clear_parm_order (); }
2541 { /* Dummy action so attributes are in known place
2542 on parser stack. */ }
2546 { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
2549 /* This is what appears inside the parens in a function declarator.
2550 Is value is represented in the format that grokdeclarator expects. */
2551 parmlist_2: /* empty */
2552 { $$ = get_parm_info (0); }
2554 { $$ = get_parm_info (0);
2555 /* Gcc used to allow this as an extension. However, it does
2556 not work for all targets, and thus has been disabled.
2557 Also, since func (...) and func () are indistinguishable,
2558 it caused problems with the code in expand_builtin which
2559 tries to verify that BUILT_IN_NEXT_ARG is being used
2561 error ("ISO C requires a named argument before `...'");
2564 { $$ = get_parm_info (1);
2565 parsing_iso_function_signature = true;
2567 | parms ',' ELLIPSIS
2568 { $$ = get_parm_info (0); }
2573 { push_parm_decl ($1); }
2575 { push_parm_decl ($3); }
2578 /* A single parameter declaration or parameter type name,
2579 as found in a parmlist. */
2581 declspecs_ts setspecs parm_declarator maybe_attribute
2582 { $$ = build_tree_list (build_tree_list (current_declspecs,
2584 chainon ($4, all_prefix_attributes));
2585 POP_DECLSPEC_STACK; }
2586 | declspecs_ts setspecs notype_declarator maybe_attribute
2587 { $$ = build_tree_list (build_tree_list (current_declspecs,
2589 chainon ($4, all_prefix_attributes));
2590 POP_DECLSPEC_STACK; }
2591 | declspecs_ts setspecs absdcl_maybe_attribute
2593 POP_DECLSPEC_STACK; }
2594 | declspecs_nots setspecs notype_declarator maybe_attribute
2595 { $$ = build_tree_list (build_tree_list (current_declspecs,
2597 chainon ($4, all_prefix_attributes));
2598 POP_DECLSPEC_STACK; }
2600 | declspecs_nots setspecs absdcl_maybe_attribute
2602 POP_DECLSPEC_STACK; }
2605 /* The first parm, which must suck attributes from off the top of the parser
2608 declspecs_ts_nosa setspecs_fp parm_declarator maybe_attribute
2609 { $$ = build_tree_list (build_tree_list (current_declspecs,
2611 chainon ($4, all_prefix_attributes));
2612 POP_DECLSPEC_STACK; }
2613 | declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
2614 { $$ = build_tree_list (build_tree_list (current_declspecs,
2616 chainon ($4, all_prefix_attributes));
2617 POP_DECLSPEC_STACK; }
2618 | declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
2620 POP_DECLSPEC_STACK; }
2621 | declspecs_nots_nosa setspecs_fp notype_declarator maybe_attribute
2622 { $$ = build_tree_list (build_tree_list (current_declspecs,
2624 chainon ($4, all_prefix_attributes));
2625 POP_DECLSPEC_STACK; }
2627 | declspecs_nots_nosa setspecs_fp absdcl_maybe_attribute
2629 POP_DECLSPEC_STACK; }
2634 { prefix_attributes = chainon (prefix_attributes, $<ttype>-2);
2635 all_prefix_attributes = prefix_attributes; }
2638 /* This is used in a function definition
2639 where either a parmlist or an identifier list is ok.
2640 Its value is a list of ..._TYPE nodes or a list of identifiers. */
2641 parmlist_or_identifiers:
2644 clear_parm_order ();
2645 declare_parm_level (1); }
2646 parmlist_or_identifiers_1
2648 parmlist_tags_warning ();
2649 poplevel (0, 0, 0); }
2652 parmlist_or_identifiers_1:
2656 for (t = $1; t; t = TREE_CHAIN (t))
2657 if (TREE_VALUE (t) == NULL_TREE)
2658 error ("`...' in old-style identifier list");
2659 $$ = tree_cons (NULL_TREE, NULL_TREE, $1);
2661 /* Make sure we have a parmlist after attributes. */
2663 && (TREE_CODE ($$) != TREE_LIST
2664 || TREE_PURPOSE ($$) == 0
2665 || TREE_CODE (TREE_PURPOSE ($$)) != PARM_DECL))
2670 /* A nonempty list of identifiers. */
2673 { $$ = build_tree_list (NULL_TREE, $1); }
2674 | identifiers ',' IDENTIFIER
2675 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2678 /* A nonempty list of identifiers, including typenames. */
2679 identifiers_or_typenames:
2681 { $$ = build_tree_list (NULL_TREE, $1); }
2682 | identifiers_or_typenames ',' identifier
2683 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2688 { $$ = SAVE_EXT_FLAGS();
2690 warn_pointer_arith = 0;
2691 warn_traditional = 0;
2696 /* Objective-C productions. */
2706 if (objc_implementation_context)
2708 finish_class (objc_implementation_context);
2709 objc_ivar_chain = NULL_TREE;
2710 objc_implementation_context = NULL_TREE;
2713 warning ("`@end' must appear in an implementation context");
2717 /* A nonempty list of identifiers. */
2720 { $$ = build_tree_list (NULL_TREE, $1); }
2721 | identifier_list ',' identifier
2722 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2726 CLASS identifier_list ';'
2728 objc_declare_class ($2);
2733 ALIAS identifier identifier ';'
2735 objc_declare_alias ($2, $3);
2740 INTERFACE identifier protocolrefs '{'
2742 objc_interface_context = objc_ivar_context
2743 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2744 objc_public_flag = 0;
2748 continue_class (objc_interface_context);
2753 finish_class (objc_interface_context);
2754 objc_interface_context = NULL_TREE;
2757 | INTERFACE identifier protocolrefs
2759 objc_interface_context
2760 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2761 continue_class (objc_interface_context);
2766 finish_class (objc_interface_context);
2767 objc_interface_context = NULL_TREE;
2770 | INTERFACE identifier ':' identifier protocolrefs '{'
2772 objc_interface_context = objc_ivar_context
2773 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2774 objc_public_flag = 0;
2778 continue_class (objc_interface_context);
2783 finish_class (objc_interface_context);
2784 objc_interface_context = NULL_TREE;
2787 | INTERFACE identifier ':' identifier protocolrefs
2789 objc_interface_context
2790 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2791 continue_class (objc_interface_context);
2796 finish_class (objc_interface_context);
2797 objc_interface_context = NULL_TREE;
2800 | IMPLEMENTATION identifier '{'
2802 objc_implementation_context = objc_ivar_context
2803 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2804 objc_public_flag = 0;
2809 = continue_class (objc_implementation_context);
2812 | IMPLEMENTATION identifier
2814 objc_implementation_context
2815 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2817 = continue_class (objc_implementation_context);
2820 | IMPLEMENTATION identifier ':' identifier '{'
2822 objc_implementation_context = objc_ivar_context
2823 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2824 objc_public_flag = 0;
2829 = continue_class (objc_implementation_context);
2832 | IMPLEMENTATION identifier ':' identifier
2834 objc_implementation_context
2835 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2837 = continue_class (objc_implementation_context);
2840 | INTERFACE identifier '(' identifier ')' protocolrefs
2842 objc_interface_context
2843 = start_class (CATEGORY_INTERFACE_TYPE, $2, $4, $6);
2844 continue_class (objc_interface_context);
2849 finish_class (objc_interface_context);
2850 objc_interface_context = NULL_TREE;
2853 | IMPLEMENTATION identifier '(' identifier ')'
2855 objc_implementation_context
2856 = start_class (CATEGORY_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2858 = continue_class (objc_implementation_context);
2863 PROTOCOL identifier protocolrefs
2865 objc_pq_context = 1;
2866 objc_interface_context
2867 = start_protocol(PROTOCOL_INTERFACE_TYPE, $2, $3);
2871 objc_pq_context = 0;
2872 finish_protocol(objc_interface_context);
2873 objc_interface_context = NULL_TREE;
2875 /* The @protocol forward-declaration production introduces a
2876 reduce/reduce conflict on ';', which should be resolved in
2877 favor of the production 'identifier_list -> identifier'. */
2878 | PROTOCOL identifier_list ';'
2880 objc_declare_protocols ($2);
2889 | non_empty_protocolrefs
2892 non_empty_protocolrefs:
2893 ARITHCOMPARE identifier_list ARITHCOMPARE
2895 if ($1 == LT_EXPR && $3 == GT_EXPR)
2903 ivar_decl_list visibility_spec ivar_decls
2908 PRIVATE { objc_public_flag = 2; }
2909 | PROTECTED { objc_public_flag = 0; }
2910 | PUBLIC { objc_public_flag = 1; }
2918 | ivar_decls ivar_decl ';'
2922 pedwarn ("extra semicolon in struct or union specified");
2927 /* There is a shift-reduce conflict here, because `components' may
2928 start with a `typename'. It happens that shifting (the default resolution)
2929 does the right thing, because it treats the `typename' as part of
2930 a `typed_typespecs'.
2932 It is possible that this same technique would allow the distinction
2933 between `notype_initdecls' and `initdecls' to be eliminated.
2934 But I am being cautious and not trying it. */
2937 declspecs_nosc_ts setspecs ivars
2939 POP_DECLSPEC_STACK; }
2940 | declspecs_nosc_nots setspecs ivars
2942 POP_DECLSPEC_STACK; }
2951 | ivars ',' maybe_resetattrs ivar_declarator
2957 $$ = add_instance_variable (objc_ivar_context,
2959 $1, current_declspecs,
2962 | declarator ':' expr_no_commas
2964 $$ = add_instance_variable (objc_ivar_context,
2966 $1, current_declspecs, $3);
2968 | ':' expr_no_commas
2970 $$ = add_instance_variable (objc_ivar_context,
2973 current_declspecs, $2);
2979 { objc_inherit_code = CLASS_METHOD_DECL; }
2981 { objc_inherit_code = INSTANCE_METHOD_DECL; }
2987 objc_pq_context = 1;
2988 if (!objc_implementation_context)
2989 fatal_error ("method definition not in class context");
2993 objc_pq_context = 0;
2994 if (objc_inherit_code == CLASS_METHOD_DECL)
2995 add_class_method (objc_implementation_context, $3);
2997 add_instance_method (objc_implementation_context, $3);
2998 start_method_def ($3);
3002 continue_method_def ();
3006 finish_method_def ();
3010 /* the reason for the strange actions in this rule
3011 is so that notype_initdecls when reached via datadef
3012 can find a valid list of type and sc specs in $0. */
3016 | {$<ttype>$ = NULL_TREE; } methodprotolist2
3019 methodprotolist2: /* eliminates a shift/reduce conflict */
3022 | methodprotolist2 methodproto
3023 | methodprotolist2 {$<ttype>$ = NULL_TREE; } datadef
3034 /* Remember protocol qualifiers in prototypes. */
3035 objc_pq_context = 1;
3039 /* Forget protocol qualifiers here. */
3040 objc_pq_context = 0;
3041 if (objc_inherit_code == CLASS_METHOD_DECL)
3042 add_class_method (objc_interface_context, $3);
3044 add_instance_method (objc_interface_context, $3);
3050 '(' typename ')' unaryselector
3052 $$ = build_method_decl (objc_inherit_code, $2, $4, NULL_TREE);
3057 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, NULL_TREE);
3060 | '(' typename ')' keywordselector optparmlist
3062 $$ = build_method_decl (objc_inherit_code, $2, $4, $5);
3065 | keywordselector optparmlist
3067 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, $2);
3071 /* "optarglist" assumes that start_method_def has already been called...
3072 if it is not, the "xdecls" will not be placed in the proper scope */
3079 /* to get around the following situation: "int foo (int a) int b; {}" that
3080 is synthesized when parsing "- a:a b:b; id c; id d; { ... }" */
3095 declspecs_ts setspecs myparms ';'
3096 { POP_DECLSPEC_STACK; }
3098 { shadow_tag ($1); }
3099 | declspecs_nots ';'
3100 { pedwarn ("empty declaration"); }
3105 { push_parm_decl ($1); }
3106 | myparms ',' myparm
3107 { push_parm_decl ($3); }
3110 /* A single parameter declaration or parameter type name,
3111 as found in a parmlist. DOES NOT ALLOW AN INITIALIZER OR ASMSPEC */
3114 parm_declarator maybe_attribute
3115 { $$ = build_tree_list (build_tree_list (current_declspecs,
3117 chainon ($2, all_prefix_attributes)); }
3118 | notype_declarator maybe_attribute
3119 { $$ = build_tree_list (build_tree_list (current_declspecs,
3121 chainon ($2, all_prefix_attributes)); }
3122 | absdcl_maybe_attribute
3133 /* oh what a kludge! */
3134 $$ = objc_ellipsis_node;
3142 /* returns a tree list node generated by get_parm_info */
3155 | keywordselector keyworddecl
3157 $$ = chainon ($1, $2);
3170 ENUM | STRUCT | UNION | IF | ELSE | WHILE | DO | FOR
3171 | SWITCH | CASE | DEFAULT | BREAK | CONTINUE | RETURN
3172 | GOTO | ASM_KEYWORD | SIZEOF | TYPEOF | ALIGNOF
3173 | TYPESPEC | TYPE_QUAL
3177 selector ':' '(' typename ')' identifier
3179 $$ = build_keyword_decl ($1, $4, $6);
3182 | selector ':' identifier
3184 $$ = build_keyword_decl ($1, NULL_TREE, $3);
3187 | ':' '(' typename ')' identifier
3189 $$ = build_keyword_decl (NULL_TREE, $3, $5);
3194 $$ = build_keyword_decl (NULL_TREE, NULL_TREE, $2);
3205 | keywordarglist keywordarg
3207 $$ = chainon ($1, $2);
3215 if (TREE_CHAIN ($1) == NULL_TREE)
3216 /* just return the expr., remove a level of indirection */
3217 $$ = TREE_VALUE ($1);
3219 /* we have a comma expr., we will collapse later */
3225 selector ':' keywordexpr
3227 $$ = build_tree_list ($1, $3);
3231 $$ = build_tree_list (NULL_TREE, $2);
3239 $$ = get_class_reference ($1);
3244 '[' receiver messageargs ']'
3245 { $$ = build_tree_list ($2, $3); }
3255 | keywordnamelist keywordname
3257 $$ = chainon ($1, $2);
3264 $$ = build_tree_list ($1, NULL_TREE);
3268 $$ = build_tree_list (NULL_TREE, NULL_TREE);
3273 SELECTOR '(' selectorarg ')'
3280 PROTOCOL '(' identifier ')'
3286 /* extension to support C-structures in the archiver */
3289 ENCODE '(' typename ')'
3291 $$ = groktypename ($3);
3298 /* yylex() is a thin wrapper around c_lex(), all it does is translate
3299 cpplib.h's token codes into yacc's token codes. */
3301 static enum cpp_ttype last_token;
3303 /* The reserved keyword table. */
3307 ENUM_BITFIELD(rid) rid : 16;
3308 unsigned int disable : 16;
3311 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
3313 #define D_C89 0x01 /* not in C89 */
3314 #define D_EXT 0x02 /* GCC extension */
3315 #define D_EXT89 0x04 /* GCC extension incorporated in C99 */
3316 #define D_OBJC 0x08 /* Objective C only */
3318 static const struct resword reswords[] =
3320 { "_Bool", RID_BOOL, 0 },
3321 { "_Complex", RID_COMPLEX, 0 },
3322 { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
3323 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
3324 { "__alignof", RID_ALIGNOF, 0 },
3325 { "__alignof__", RID_ALIGNOF, 0 },
3326 { "__asm", RID_ASM, 0 },
3327 { "__asm__", RID_ASM, 0 },
3328 { "__attribute", RID_ATTRIBUTE, 0 },
3329 { "__attribute__", RID_ATTRIBUTE, 0 },
3330 { "__builtin_choose_expr", RID_CHOOSE_EXPR, 0 },
3331 { "__builtin_types_compatible_p", RID_TYPES_COMPATIBLE_P, 0 },
3332 { "__builtin_va_arg", RID_VA_ARG, 0 },
3333 { "__complex", RID_COMPLEX, 0 },
3334 { "__complex__", RID_COMPLEX, 0 },
3335 { "__const", RID_CONST, 0 },
3336 { "__const__", RID_CONST, 0 },
3337 { "__extension__", RID_EXTENSION, 0 },
3338 { "__func__", RID_C99_FUNCTION_NAME, 0 },
3339 { "__imag", RID_IMAGPART, 0 },
3340 { "__imag__", RID_IMAGPART, 0 },
3341 { "__inline", RID_INLINE, 0 },
3342 { "__inline__", RID_INLINE, 0 },
3343 { "__label__", RID_LABEL, 0 },
3344 { "__ptrbase", RID_PTRBASE, 0 },
3345 { "__ptrbase__", RID_PTRBASE, 0 },
3346 { "__ptrextent", RID_PTREXTENT, 0 },
3347 { "__ptrextent__", RID_PTREXTENT, 0 },
3348 { "__ptrvalue", RID_PTRVALUE, 0 },
3349 { "__ptrvalue__", RID_PTRVALUE, 0 },
3350 { "__real", RID_REALPART, 0 },
3351 { "__real__", RID_REALPART, 0 },
3352 { "__restrict", RID_RESTRICT, 0 },
3353 { "__restrict__", RID_RESTRICT, 0 },
3354 { "__signed", RID_SIGNED, 0 },
3355 { "__signed__", RID_SIGNED, 0 },
3356 { "__thread", RID_THREAD, 0 },
3357 { "__typeof", RID_TYPEOF, 0 },
3358 { "__typeof__", RID_TYPEOF, 0 },
3359 { "__volatile", RID_VOLATILE, 0 },
3360 { "__volatile__", RID_VOLATILE, 0 },
3361 { "asm", RID_ASM, D_EXT },
3362 { "auto", RID_AUTO, 0 },
3363 { "break", RID_BREAK, 0 },
3364 { "case", RID_CASE, 0 },
3365 { "char", RID_CHAR, 0 },
3366 { "const", RID_CONST, 0 },
3367 { "continue", RID_CONTINUE, 0 },
3368 { "default", RID_DEFAULT, 0 },
3369 { "do", RID_DO, 0 },
3370 { "double", RID_DOUBLE, 0 },
3371 { "else", RID_ELSE, 0 },
3372 { "enum", RID_ENUM, 0 },
3373 { "extern", RID_EXTERN, 0 },
3374 { "float", RID_FLOAT, 0 },
3375 { "for", RID_FOR, 0 },
3376 { "goto", RID_GOTO, 0 },
3377 { "if", RID_IF, 0 },
3378 { "inline", RID_INLINE, D_EXT89 },
3379 { "int", RID_INT, 0 },
3380 { "long", RID_LONG, 0 },
3381 { "register", RID_REGISTER, 0 },
3382 { "restrict", RID_RESTRICT, D_C89 },
3383 { "return", RID_RETURN, 0 },
3384 { "short", RID_SHORT, 0 },
3385 { "signed", RID_SIGNED, 0 },
3386 { "sizeof", RID_SIZEOF, 0 },
3387 { "static", RID_STATIC, 0 },
3388 { "struct", RID_STRUCT, 0 },
3389 { "switch", RID_SWITCH, 0 },
3390 { "typedef", RID_TYPEDEF, 0 },
3391 { "typeof", RID_TYPEOF, D_EXT },
3392 { "union", RID_UNION, 0 },
3393 { "unsigned", RID_UNSIGNED, 0 },
3394 { "void", RID_VOID, 0 },
3395 { "volatile", RID_VOLATILE, 0 },
3396 { "while", RID_WHILE, 0 },
3398 { "id", RID_ID, D_OBJC },
3400 /* These objc keywords are recognized only immediately after
3402 { "class", RID_AT_CLASS, D_OBJC },
3403 { "compatibility_alias", RID_AT_ALIAS, D_OBJC },
3404 { "defs", RID_AT_DEFS, D_OBJC },
3405 { "encode", RID_AT_ENCODE, D_OBJC },
3406 { "end", RID_AT_END, D_OBJC },
3407 { "implementation", RID_AT_IMPLEMENTATION, D_OBJC },
3408 { "interface", RID_AT_INTERFACE, D_OBJC },
3409 { "private", RID_AT_PRIVATE, D_OBJC },
3410 { "protected", RID_AT_PROTECTED, D_OBJC },
3411 { "protocol", RID_AT_PROTOCOL, D_OBJC },
3412 { "public", RID_AT_PUBLIC, D_OBJC },
3413 { "selector", RID_AT_SELECTOR, D_OBJC },
3415 /* These are recognized only in protocol-qualifier context
3417 { "bycopy", RID_BYCOPY, D_OBJC },
3418 { "byref", RID_BYREF, D_OBJC },
3419 { "in", RID_IN, D_OBJC },
3420 { "inout", RID_INOUT, D_OBJC },
3421 { "oneway", RID_ONEWAY, D_OBJC },
3422 { "out", RID_OUT, D_OBJC },
3425 #define N_reswords (sizeof reswords / sizeof (struct resword))
3427 /* Table mapping from RID_* constants to yacc token numbers.
3428 Unfortunately we have to have entries for all the keywords in all
3430 static const short rid_to_yy[RID_MAX] =
3432 /* RID_STATIC */ STATIC,
3433 /* RID_UNSIGNED */ TYPESPEC,
3434 /* RID_LONG */ TYPESPEC,
3435 /* RID_CONST */ TYPE_QUAL,
3436 /* RID_EXTERN */ SCSPEC,
3437 /* RID_REGISTER */ SCSPEC,
3438 /* RID_TYPEDEF */ SCSPEC,
3439 /* RID_SHORT */ TYPESPEC,
3440 /* RID_INLINE */ SCSPEC,
3441 /* RID_VOLATILE */ TYPE_QUAL,
3442 /* RID_SIGNED */ TYPESPEC,
3443 /* RID_AUTO */ SCSPEC,
3444 /* RID_RESTRICT */ TYPE_QUAL,
3447 /* RID_COMPLEX */ TYPESPEC,
3448 /* RID_THREAD */ SCSPEC,
3452 /* RID_VIRTUAL */ 0,
3453 /* RID_EXPLICIT */ 0,
3455 /* RID_MUTABLE */ 0,
3458 /* RID_IN */ TYPE_QUAL,
3459 /* RID_OUT */ TYPE_QUAL,
3460 /* RID_INOUT */ TYPE_QUAL,
3461 /* RID_BYCOPY */ TYPE_QUAL,
3462 /* RID_BYREF */ TYPE_QUAL,
3463 /* RID_ONEWAY */ TYPE_QUAL,
3466 /* RID_INT */ TYPESPEC,
3467 /* RID_CHAR */ TYPESPEC,
3468 /* RID_FLOAT */ TYPESPEC,
3469 /* RID_DOUBLE */ TYPESPEC,
3470 /* RID_VOID */ TYPESPEC,
3471 /* RID_ENUM */ ENUM,
3472 /* RID_STRUCT */ STRUCT,
3473 /* RID_UNION */ UNION,
3475 /* RID_ELSE */ ELSE,
3476 /* RID_WHILE */ WHILE,
3479 /* RID_SWITCH */ SWITCH,
3480 /* RID_CASE */ CASE,
3481 /* RID_DEFAULT */ DEFAULT,
3482 /* RID_BREAK */ BREAK,
3483 /* RID_CONTINUE */ CONTINUE,
3484 /* RID_RETURN */ RETURN,
3485 /* RID_GOTO */ GOTO,
3486 /* RID_SIZEOF */ SIZEOF,
3489 /* RID_ASM */ ASM_KEYWORD,
3490 /* RID_TYPEOF */ TYPEOF,
3491 /* RID_ALIGNOF */ ALIGNOF,
3492 /* RID_ATTRIBUTE */ ATTRIBUTE,
3493 /* RID_VA_ARG */ VA_ARG,
3494 /* RID_EXTENSION */ EXTENSION,
3495 /* RID_IMAGPART */ IMAGPART,
3496 /* RID_REALPART */ REALPART,
3497 /* RID_LABEL */ LABEL,
3498 /* RID_PTRBASE */ PTR_BASE,
3499 /* RID_PTREXTENT */ PTR_EXTENT,
3500 /* RID_PTRVALUE */ PTR_VALUE,
3502 /* RID_CHOOSE_EXPR */ CHOOSE_EXPR,
3503 /* RID_TYPES_COMPATIBLE_P */ TYPES_COMPATIBLE_P,
3505 /* RID_FUNCTION_NAME */ STRING_FUNC_NAME,
3506 /* RID_PRETTY_FUNCTION_NAME */ STRING_FUNC_NAME,
3507 /* RID_C99_FUNCTION_NAME */ VAR_FUNC_NAME,
3510 /* RID_BOOL */ TYPESPEC,
3514 /* RID_PRIVATE */ 0,
3515 /* RID_PROTECTED */ 0,
3516 /* RID_TEMPLATE */ 0,
3521 /* RID_NAMESPACE */ 0,
3523 /* RID_OPERATOR */ 0,
3528 /* RID_TYPENAME */ 0,
3533 /* RID_CONSTCAST */ 0,
3534 /* RID_DYNCAST */ 0,
3535 /* RID_REINTCAST */ 0,
3536 /* RID_STATCAST */ 0,
3539 /* RID_ID */ OBJECTNAME,
3540 /* RID_AT_ENCODE */ ENCODE,
3541 /* RID_AT_END */ END,
3542 /* RID_AT_CLASS */ CLASS,
3543 /* RID_AT_ALIAS */ ALIAS,
3544 /* RID_AT_DEFS */ DEFS,
3545 /* RID_AT_PRIVATE */ PRIVATE,
3546 /* RID_AT_PROTECTED */ PROTECTED,
3547 /* RID_AT_PUBLIC */ PUBLIC,
3548 /* RID_AT_PROTOCOL */ PROTOCOL,
3549 /* RID_AT_SELECTOR */ SELECTOR,
3550 /* RID_AT_INTERFACE */ INTERFACE,
3551 /* RID_AT_IMPLEMENTATION */ IMPLEMENTATION
3559 int mask = (flag_isoc99 ? 0 : D_C89)
3560 | (flag_no_asm ? (flag_isoc99 ? D_EXT : D_EXT|D_EXT89) : 0);
3565 ridpointers = (tree *) ggc_calloc ((int) RID_MAX, sizeof (tree));
3566 for (i = 0; i < N_reswords; i++)
3568 /* If a keyword is disabled, do not enter it into the table
3569 and so create a canonical spelling that isn't a keyword. */
3570 if (reswords[i].disable & mask)
3573 id = get_identifier (reswords[i].word);
3574 C_RID_CODE (id) = reswords[i].rid;
3575 C_IS_RESERVED_WORD (id) = 1;
3576 ridpointers [(int) reswords[i].rid] = id;
3580 #define NAME(type) cpp_type2name (type)
3586 const char *string = _(msgid);
3588 if (last_token == CPP_EOF)
3589 error ("%s at end of input", string);
3590 else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
3592 unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
3593 const char *const ell = (last_token == CPP_CHAR) ? "" : "L";
3594 if (val <= UCHAR_MAX && ISGRAPH (val))
3595 error ("%s before %s'%c'", string, ell, val);
3597 error ("%s before %s'\\x%x'", string, ell, val);
3599 else if (last_token == CPP_STRING
3600 || last_token == CPP_WSTRING)
3601 error ("%s before string constant", string);
3602 else if (last_token == CPP_NUMBER)
3603 error ("%s before numeric constant", string);
3604 else if (last_token == CPP_NAME)
3605 error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
3607 error ("%s before '%s' token", string, NAME(last_token));
3616 int objc_force_identifier = objc_need_raw_identifier;
3617 OBJC_NEED_RAW_IDENTIFIER (0);
3620 if (C_IS_RESERVED_WORD (yylval.ttype))
3622 enum rid rid_code = C_RID_CODE (yylval.ttype);
3625 /* Turn non-typedefed refs to "id" into plain identifiers; this
3626 allows constructs like "void foo(id id);" to work. */
3627 if (rid_code == RID_ID)
3629 decl = lookup_name (yylval.ttype);
3630 if (decl == NULL_TREE || TREE_CODE (decl) != TYPE_DECL)
3634 if (!OBJC_IS_AT_KEYWORD (rid_code)
3635 && (!OBJC_IS_PQ_KEYWORD (rid_code) || objc_pq_context))
3638 int yycode = rid_to_yy[(int) rid_code];
3639 if (yycode == STRING_FUNC_NAME)
3641 /* __FUNCTION__ and __PRETTY_FUNCTION__ get converted
3642 to string constants. */
3643 const char *name = fname_string (rid_code);
3645 yylval.ttype = build_string (strlen (name) + 1, name);
3646 C_ARTIFICIAL_STRING_P (yylval.ttype) = 1;
3647 last_token = CPP_STRING; /* so yyerror won't choke */
3651 /* Return the canonical spelling for this keyword. */
3652 yylval.ttype = ridpointers[(int) rid_code];
3657 decl = lookup_name (yylval.ttype);
3660 if (TREE_CODE (decl) == TYPE_DECL)
3666 tree objc_interface_decl = is_class_name (yylval.ttype);
3667 /* ObjC class names are in the same namespace as variables and
3668 typedefs, and hence are shadowed by local declarations. */
3669 if (objc_interface_decl
3670 && (global_bindings_p ()
3671 || (!objc_force_identifier && !decl)))
3673 yylval.ttype = objc_interface_decl;
3682 /* Concatenate strings before returning them to the parser. This isn't quite
3683 as good as having it done in the lexer, but it's better than nothing. */
3688 enum cpp_ttype next_type;
3689 tree orig = yylval.ttype;
3691 next_type = c_lex (&yylval.ttype);
3692 if (next_type == CPP_STRING
3693 || next_type == CPP_WSTRING
3694 || (next_type == CPP_NAME && yylexname () == STRING))
3696 varray_type strings;
3699 static int last_lineno = 0;
3700 static const char *last_input_filename = 0;
3701 if (warn_traditional && !in_system_header
3702 && (input_line != last_lineno || !last_input_filename ||
3703 strcmp (last_input_filename, input_filename)))
3705 warning ("traditional C rejects string concatenation");
3706 last_lineno = input_line;
3707 last_input_filename = input_filename;
3711 VARRAY_TREE_INIT (strings, 32, "strings");
3712 VARRAY_PUSH_TREE (strings, orig);
3716 VARRAY_PUSH_TREE (strings, yylval.ttype);
3717 next_type = c_lex (&yylval.ttype);
3719 while (next_type == CPP_STRING
3720 || next_type == CPP_WSTRING
3721 || (next_type == CPP_NAME && yylexname () == STRING));
3723 yylval.ttype = combine_strings (strings);
3726 yylval.ttype = orig;
3728 /* We will have always read one token too many. */
3729 _cpp_backup_tokens (parse_in, 1);
3738 last_token = c_lex (&yylval.ttype);
3741 case CPP_EQ: return '=';
3742 case CPP_NOT: return '!';
3743 case CPP_GREATER: yylval.code = GT_EXPR; return ARITHCOMPARE;
3744 case CPP_LESS: yylval.code = LT_EXPR; return ARITHCOMPARE;
3745 case CPP_PLUS: yylval.code = PLUS_EXPR; return '+';
3746 case CPP_MINUS: yylval.code = MINUS_EXPR; return '-';
3747 case CPP_MULT: yylval.code = MULT_EXPR; return '*';
3748 case CPP_DIV: yylval.code = TRUNC_DIV_EXPR; return '/';
3749 case CPP_MOD: yylval.code = TRUNC_MOD_EXPR; return '%';
3750 case CPP_AND: yylval.code = BIT_AND_EXPR; return '&';
3751 case CPP_OR: yylval.code = BIT_IOR_EXPR; return '|';
3752 case CPP_XOR: yylval.code = BIT_XOR_EXPR; return '^';
3753 case CPP_RSHIFT: yylval.code = RSHIFT_EXPR; return RSHIFT;
3754 case CPP_LSHIFT: yylval.code = LSHIFT_EXPR; return LSHIFT;
3756 case CPP_COMPL: return '~';
3757 case CPP_AND_AND: return ANDAND;
3758 case CPP_OR_OR: return OROR;
3759 case CPP_QUERY: return '?';
3760 case CPP_OPEN_PAREN: return '(';
3761 case CPP_EQ_EQ: yylval.code = EQ_EXPR; return EQCOMPARE;
3762 case CPP_NOT_EQ: yylval.code = NE_EXPR; return EQCOMPARE;
3763 case CPP_GREATER_EQ:yylval.code = GE_EXPR; return ARITHCOMPARE;
3764 case CPP_LESS_EQ: yylval.code = LE_EXPR; return ARITHCOMPARE;
3766 case CPP_PLUS_EQ: yylval.code = PLUS_EXPR; return ASSIGN;
3767 case CPP_MINUS_EQ: yylval.code = MINUS_EXPR; return ASSIGN;
3768 case CPP_MULT_EQ: yylval.code = MULT_EXPR; return ASSIGN;
3769 case CPP_DIV_EQ: yylval.code = TRUNC_DIV_EXPR; return ASSIGN;
3770 case CPP_MOD_EQ: yylval.code = TRUNC_MOD_EXPR; return ASSIGN;
3771 case CPP_AND_EQ: yylval.code = BIT_AND_EXPR; return ASSIGN;
3772 case CPP_OR_EQ: yylval.code = BIT_IOR_EXPR; return ASSIGN;
3773 case CPP_XOR_EQ: yylval.code = BIT_XOR_EXPR; return ASSIGN;
3774 case CPP_RSHIFT_EQ: yylval.code = RSHIFT_EXPR; return ASSIGN;
3775 case CPP_LSHIFT_EQ: yylval.code = LSHIFT_EXPR; return ASSIGN;
3777 case CPP_OPEN_SQUARE: return '[';
3778 case CPP_CLOSE_SQUARE: return ']';
3779 case CPP_OPEN_BRACE: return '{';
3780 case CPP_CLOSE_BRACE: return '}';
3781 case CPP_ELLIPSIS: return ELLIPSIS;
3783 case CPP_PLUS_PLUS: return PLUSPLUS;
3784 case CPP_MINUS_MINUS: return MINUSMINUS;
3785 case CPP_DEREF: return POINTSAT;
3786 case CPP_DOT: return '.';
3788 /* The following tokens may affect the interpretation of any
3789 identifiers following, if doing Objective-C. */
3790 case CPP_COLON: OBJC_NEED_RAW_IDENTIFIER (0); return ':';
3791 case CPP_COMMA: OBJC_NEED_RAW_IDENTIFIER (0); return ',';
3792 case CPP_CLOSE_PAREN: OBJC_NEED_RAW_IDENTIFIER (0); return ')';
3793 case CPP_SEMICOLON: OBJC_NEED_RAW_IDENTIFIER (0); return ';';
3800 int ret = yylexname ();
3802 return yylexstring ();
3814 return yylexstring ();
3816 /* This token is Objective-C specific. It gives the next token
3817 special significance. */
3822 enum cpp_ttype after_at_type;
3824 after_at_type = c_lex (&after_at);
3826 if (after_at_type == CPP_NAME
3827 && C_IS_RESERVED_WORD (after_at)
3828 && OBJC_IS_AT_KEYWORD (C_RID_CODE (after_at)))
3830 yylval.ttype = after_at;
3831 last_token = after_at_type;
3832 return rid_to_yy [(int) C_RID_CODE (after_at)];
3834 _cpp_backup_tokens (parse_in, 1);
3839 /* These tokens are C++ specific (and will not be generated
3840 in C mode, but let's be cautious). */
3842 case CPP_DEREF_STAR:
3848 /* These tokens should not survive translation phase 4. */
3851 error ("syntax error at '%s' token", NAME(last_token));
3864 timevar_push (TV_LEX);
3866 timevar_pop (TV_LEX);
3870 /* Function used when yydebug is set, to print a token in more detail. */
3873 yyprint (file, yychar, yyl)
3880 fprintf (file, " [%s]", NAME(last_token));
3891 if (IDENTIFIER_POINTER (t))
3892 fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
3896 fprintf (file, " %s", GET_MODE_NAME (TYPE_MODE (TREE_TYPE (t))));
3897 if (TREE_CODE (t) == INTEGER_CST)
3900 fprintf (file, HOST_WIDE_INT_PRINT_DOUBLE_HEX,
3901 TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
3907 /* This is not the ideal place to put these, but we have to get them out
3908 of c-lex.c because cp/lex.c has its own versions. */
3910 /* Free malloced parser stacks if necessary. */
3913 free_parser_stacks ()
3917 free (malloced_yyss);
3918 free (malloced_yyvs);
3922 #include "gt-c-parse.h"