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 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 31 /* shift/reduce conflicts, and 1 reduce/reduce conflict. */
35 %expect 10 /* shift/reduce conflicts, and no reduce/reduce conflicts. */
54 #ifdef MULTIBYTE_CHARS
62 /* Like YYERROR but do call yyerror. */
63 #define YYERROR1 { yyerror ("syntax error"); YYERROR; }
65 /* Cause the "yydebug" variable to be defined. */
68 /* Rename the "yyparse" function so that we can override it elsewhere. */
69 #define yyparse yyparse_1
74 %union {long itype; tree ttype; enum tree_code code;
75 const char *filename; int lineno; }
77 /* All identifiers that are not reserved words
78 and are not declared typedefs in the current block */
81 /* All identifiers that are declared typedefs in the current block.
82 In some contexts, they are treated just like IDENTIFIER,
83 but they can also serve as typespecs in declarations. */
86 /* Reserved words that specify storage class.
87 yylval contains an IDENTIFIER_NODE which indicates which one. */
90 /* Reserved words that specify type.
91 yylval contains an IDENTIFIER_NODE which indicates which one. */
94 /* Reserved words that qualify type: "const", "volatile", or "restrict".
95 yylval contains an IDENTIFIER_NODE which indicates which one. */
98 /* Character or numeric constants.
99 yylval is the node for the constant. */
102 /* String constants in raw form.
103 yylval is a STRING_CST node. */
106 /* "...", used for functions with variable arglists. */
109 /* the reserved words */
110 /* SCO include files test "ASM", so use something else. */
111 %token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
112 %token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
113 %token ATTRIBUTE EXTENSION LABEL
114 %token REALPART IMAGPART VA_ARG CHOOSE_EXPR TYPES_COMPATIBLE_P
115 %token PTR_VALUE PTR_BASE PTR_EXTENT
117 /* function name can be a string const or a var decl. */
118 %token STRING_FUNC_NAME VAR_FUNC_NAME
120 /* Add precedence rules to solve dangling else s/r conflict */
124 /* Define the operator tokens and their precedences.
125 The value is an integer because, if used, it is the tree code
126 to use in the expression made from the operator. */
128 %right <code> ASSIGN '='
129 %right <code> '?' ':'
135 %left <code> EQCOMPARE
136 %left <code> ARITHCOMPARE
137 %left <code> LSHIFT RSHIFT
139 %left <code> '*' '/' '%'
140 %right <code> UNARY PLUSPLUS MINUSMINUS
142 %left <code> POINTSAT '.' '(' '['
144 /* The Objective-C keywords. These are included in C and in
145 Objective C, so that the token codes are the same in both. */
146 %token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
147 %token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
150 %type <ttype> ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
151 %type <ttype> BREAK CONTINUE RETURN GOTO ASM_KEYWORD SIZEOF TYPEOF ALIGNOF
153 %type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
154 %type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
155 %type <ttype> declspecs_nosc_nots_nosa_noea declspecs_nosc_nots_nosa_ea
156 %type <ttype> declspecs_nosc_nots_sa_noea declspecs_nosc_nots_sa_ea
157 %type <ttype> declspecs_nosc_ts_nosa_noea declspecs_nosc_ts_nosa_ea
158 %type <ttype> declspecs_nosc_ts_sa_noea declspecs_nosc_ts_sa_ea
159 %type <ttype> declspecs_sc_nots_nosa_noea declspecs_sc_nots_nosa_ea
160 %type <ttype> declspecs_sc_nots_sa_noea declspecs_sc_nots_sa_ea
161 %type <ttype> declspecs_sc_ts_nosa_noea declspecs_sc_ts_nosa_ea
162 %type <ttype> declspecs_sc_ts_sa_noea declspecs_sc_ts_sa_ea
163 %type <ttype> declspecs_ts declspecs_nots
164 %type <ttype> declspecs_ts_nosa declspecs_nots_nosa
165 %type <ttype> declspecs_nosc_ts declspecs_nosc_nots declspecs_nosc declspecs
166 %type <ttype> maybe_type_quals_attrs typespec_nonattr typespec_attr
167 %type <ttype> typespec_reserved_nonattr typespec_reserved_attr
168 %type <ttype> typespec_nonreserved_nonattr
170 %type <ttype> SCSPEC TYPESPEC TYPE_QUAL maybe_type_qual
171 %type <ttype> initdecls notype_initdecls initdcl notype_initdcl
172 %type <ttype> init maybeasm
173 %type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
174 %type <ttype> maybe_attribute attributes attribute attribute_list attrib
175 %type <ttype> any_word extension
177 %type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
178 %type <ttype> do_stmt_start poplevel stmt label
180 %type <ttype> c99_block_start c99_block_end
181 %type <ttype> declarator
182 %type <ttype> notype_declarator after_type_declarator
183 %type <ttype> parm_declarator
184 %type <ttype> parm_declarator_starttypename parm_declarator_nostarttypename
185 %type <ttype> array_declarator
187 %type <ttype> structsp_attr structsp_nonattr
188 %type <ttype> component_decl_list component_decl_list2
189 %type <ttype> component_decl components components_notype component_declarator
190 %type <ttype> component_notype_declarator
191 %type <ttype> enumlist enumerator
192 %type <ttype> struct_head union_head enum_head
193 %type <ttype> typename absdcl absdcl1 absdcl1_ea absdcl1_noea
194 %type <ttype> direct_absdcl1 absdcl_maybe_attribute
195 %type <ttype> xexpr parms parm firstparm identifiers
197 %type <ttype> parmlist parmlist_1 parmlist_2
198 %type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
199 %type <ttype> identifiers_or_typenames
201 %type <itype> setspecs setspecs_fp
203 %type <filename> save_filename
204 %type <lineno> save_lineno
207 /* the Objective-C nonterminals */
209 %type <ttype> ivar_decl_list ivar_decls ivar_decl ivars ivar_declarator
210 %type <ttype> methoddecl unaryselector keywordselector selector
211 %type <ttype> keyworddecl receiver objcmessageexpr messageargs
212 %type <ttype> keywordexpr keywordarglist keywordarg
213 %type <ttype> myparms myparm optparmlist reservedwords objcselectorexpr
214 %type <ttype> selectorarg keywordnamelist keywordname objcencodeexpr
215 %type <ttype> objc_string non_empty_protocolrefs protocolrefs identifier_list objcprotocolexpr
217 %type <ttype> CLASSNAME OBJECTNAME
221 /* Number of statements (loosely speaking) and compound statements
223 static int stmt_count;
224 static int compstmt_count;
226 /* Input file and line number of the end of the body of last simple_if;
227 used by the stmt-rule immediately after simple_if returns. */
228 static const char *if_stmt_file;
229 static int if_stmt_line;
231 /* List of types and structure classes of the current declaration. */
232 static tree current_declspecs = NULL_TREE;
233 static tree prefix_attributes = NULL_TREE;
235 /* List of all the attributes applying to the identifier currently being
236 declared; includes prefix_attributes and possibly some more attributes
237 just after a comma. */
238 static tree all_prefix_attributes = NULL_TREE;
240 /* Stack of saved values of current_declspecs, prefix_attributes and
241 all_prefix_attributes. */
242 static tree declspec_stack;
244 /* PUSH_DECLSPEC_STACK is called from setspecs; POP_DECLSPEC_STACK
245 should be called from the productions making use of setspecs. */
246 #define PUSH_DECLSPEC_STACK \
248 declspec_stack = tree_cons (build_tree_list (prefix_attributes, \
249 all_prefix_attributes), \
254 #define POP_DECLSPEC_STACK \
256 current_declspecs = TREE_VALUE (declspec_stack); \
257 prefix_attributes = TREE_PURPOSE (TREE_PURPOSE (declspec_stack)); \
258 all_prefix_attributes = TREE_VALUE (TREE_PURPOSE (declspec_stack)); \
259 declspec_stack = TREE_CHAIN (declspec_stack); \
262 /* For __extension__, save/restore the warning flags which are
263 controlled by __extension__. */
264 #define SAVE_WARN_FLAGS() \
265 size_int (pedantic | (warn_pointer_arith << 1))
266 #define RESTORE_WARN_FLAGS(tval) \
268 int val = tree_low_cst (tval, 0); \
269 pedantic = val & 1; \
270 warn_pointer_arith = (val >> 1) & 1; \
274 /* Objective-C specific parser/lexer information */
276 static enum tree_code objc_inherit_code;
277 static int objc_pq_context = 0, objc_public_flag = 0;
279 /* The following flag is needed to contextualize ObjC lexical analysis.
280 In some cases (e.g., 'int NSObject;'), it is undesirable to bind
281 an identifier to an ObjC class, even if a class with that name
283 static int objc_need_raw_identifier;
284 #define OBJC_NEED_RAW_IDENTIFIER(VAL) objc_need_raw_identifier = VAL
288 #define OBJC_NEED_RAW_IDENTIFIER(VAL) /* nothing */
291 /* Tell yyparse how to print a token's value, if yydebug is set. */
293 #define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
295 static void yyprint PARAMS ((FILE *, int, YYSTYPE));
296 static void yyerror PARAMS ((const char *));
297 static int yylexname PARAMS ((void));
298 static inline int _yylex PARAMS ((void));
299 static int yylex PARAMS ((void));
300 static void init_reswords PARAMS ((void));
302 /* Add GC roots for variables local to this file. */
308 ggc_add_tree_root (&declspec_stack, 1);
309 ggc_add_tree_root (¤t_declspecs, 1);
310 ggc_add_tree_root (&prefix_attributes, 1);
311 ggc_add_tree_root (&all_prefix_attributes, 1);
319 pedwarn ("ISO C forbids an empty source file");
324 /* In case there were missing closebraces,
325 get us back to the global binding level. */
326 while (! global_bindings_p ())
329 finish_fname_decls ();
335 /* the reason for the strange actions in this rule
336 is so that notype_initdecls when reached via datadef
337 can find a valid list of type and sc specs in $0. */
340 {$<ttype>$ = NULL_TREE; } extdef
341 | extdefs {$<ttype>$ = NULL_TREE; ggc_collect(); } extdef
350 | ASM_KEYWORD '(' expr ')' ';'
352 if ((TREE_CODE ($3) == ADDR_EXPR
353 && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
354 || TREE_CODE ($3) == STRING_CST)
357 error ("argument of `asm' is not a constant string"); }
359 { RESTORE_WARN_FLAGS ($1); }
363 setspecs notype_initdecls ';'
365 error ("ISO C forbids data definition with no type or storage class");
366 else if (!flag_traditional)
367 warning ("data definition has no type or storage class");
369 POP_DECLSPEC_STACK; }
370 | declspecs_nots setspecs notype_initdecls ';'
371 { POP_DECLSPEC_STACK; }
372 | declspecs_ts setspecs initdecls ';'
373 { POP_DECLSPEC_STACK; }
380 pedwarn ("ISO C does not allow extra `;' outside of a function"); }
384 declspecs_ts setspecs declarator
385 { if (! start_function (current_declspecs, $3,
386 all_prefix_attributes))
390 { store_parm_decls (); }
391 save_filename save_lineno compstmt_or_error
392 { DECL_SOURCE_FILE (current_function_decl) = $7;
393 DECL_SOURCE_LINE (current_function_decl) = $8;
395 POP_DECLSPEC_STACK; }
396 | declspecs_ts setspecs declarator error
397 { POP_DECLSPEC_STACK; }
398 | declspecs_nots setspecs notype_declarator
399 { if (! start_function (current_declspecs, $3,
400 all_prefix_attributes))
404 { store_parm_decls (); }
405 save_filename save_lineno compstmt_or_error
406 { DECL_SOURCE_FILE (current_function_decl) = $7;
407 DECL_SOURCE_LINE (current_function_decl) = $8;
409 POP_DECLSPEC_STACK; }
410 | declspecs_nots setspecs notype_declarator error
411 { POP_DECLSPEC_STACK; }
412 | setspecs notype_declarator
413 { if (! start_function (NULL_TREE, $2,
414 all_prefix_attributes))
418 { store_parm_decls (); }
419 save_filename save_lineno compstmt_or_error
420 { DECL_SOURCE_FILE (current_function_decl) = $6;
421 DECL_SOURCE_LINE (current_function_decl) = $7;
423 POP_DECLSPEC_STACK; }
424 | setspecs notype_declarator error
425 { POP_DECLSPEC_STACK; }
440 { $$ = NEGATE_EXPR; }
444 if (warn_traditional && !in_system_header)
445 warning ("traditional C rejects the unary plus operator");
449 { $$ = PREINCREMENT_EXPR; }
451 { $$ = PREDECREMENT_EXPR; }
453 { $$ = BIT_NOT_EXPR; }
455 { $$ = TRUTH_NOT_EXPR; }
458 expr: nonnull_exprlist
459 { $$ = build_compound_expr ($1); }
470 { $$ = build_tree_list (NULL_TREE, $1); }
471 | nonnull_exprlist ',' expr_no_commas
472 { chainon ($1, build_tree_list (NULL_TREE, $3)); }
477 | '*' cast_expr %prec UNARY
478 { $$ = build_indirect_ref ($2, "unary *"); }
479 /* __extension__ turns off -pedantic for following primary. */
480 | extension cast_expr %prec UNARY
482 RESTORE_WARN_FLAGS ($1); }
483 | unop cast_expr %prec UNARY
484 { $$ = build_unary_op ($1, $2, 0);
485 overflow_warning ($$); }
486 /* Refer to the address of a label as a pointer. */
488 { $$ = finish_label_address_expr ($2); }
489 /* This seems to be impossible on some machines, so let's turn it off.
490 You can use __builtin_next_arg to find the anonymous stack args.
492 { tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
493 $$ = error_mark_node;
494 if (TREE_VALUE (tree_last (types)) == void_type_node)
495 error ("`&...' used in function with fixed number of arguments");
499 pedwarn ("ISO C forbids `&...'");
500 $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
501 $$ = build_unary_op (ADDR_EXPR, $$, 0);
504 | sizeof unary_expr %prec UNARY
506 if (TREE_CODE ($2) == COMPONENT_REF
507 && DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
508 error ("`sizeof' applied to a bit-field");
509 $$ = c_sizeof (TREE_TYPE ($2)); }
510 | sizeof '(' typename ')' %prec HYPERUNARY
512 $$ = c_sizeof (groktypename ($3)); }
513 | alignof unary_expr %prec UNARY
515 $$ = c_alignof_expr ($2); }
516 | alignof '(' typename ')' %prec HYPERUNARY
518 $$ = c_alignof (groktypename ($3)); }
519 | REALPART cast_expr %prec UNARY
520 { $$ = build_unary_op (REALPART_EXPR, $2, 0); }
521 | IMAGPART cast_expr %prec UNARY
522 { $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
526 SIZEOF { skip_evaluation++; }
530 ALIGNOF { skip_evaluation++; }
535 | '(' typename ')' cast_expr %prec UNARY
536 { $$ = c_cast_expr ($2, $4); }
541 | expr_no_commas '+' expr_no_commas
542 { $$ = parser_build_binary_op ($2, $1, $3); }
543 | expr_no_commas '-' expr_no_commas
544 { $$ = parser_build_binary_op ($2, $1, $3); }
545 | expr_no_commas '*' expr_no_commas
546 { $$ = parser_build_binary_op ($2, $1, $3); }
547 | expr_no_commas '/' expr_no_commas
548 { $$ = parser_build_binary_op ($2, $1, $3); }
549 | expr_no_commas '%' expr_no_commas
550 { $$ = parser_build_binary_op ($2, $1, $3); }
551 | expr_no_commas LSHIFT expr_no_commas
552 { $$ = parser_build_binary_op ($2, $1, $3); }
553 | expr_no_commas RSHIFT expr_no_commas
554 { $$ = parser_build_binary_op ($2, $1, $3); }
555 | expr_no_commas ARITHCOMPARE expr_no_commas
556 { $$ = parser_build_binary_op ($2, $1, $3); }
557 | expr_no_commas EQCOMPARE expr_no_commas
558 { $$ = parser_build_binary_op ($2, $1, $3); }
559 | expr_no_commas '&' expr_no_commas
560 { $$ = parser_build_binary_op ($2, $1, $3); }
561 | expr_no_commas '|' expr_no_commas
562 { $$ = parser_build_binary_op ($2, $1, $3); }
563 | expr_no_commas '^' expr_no_commas
564 { $$ = parser_build_binary_op ($2, $1, $3); }
565 | expr_no_commas ANDAND
566 { $1 = truthvalue_conversion (default_conversion ($1));
567 skip_evaluation += $1 == boolean_false_node; }
569 { skip_evaluation -= $1 == boolean_false_node;
570 $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
571 | expr_no_commas OROR
572 { $1 = truthvalue_conversion (default_conversion ($1));
573 skip_evaluation += $1 == boolean_true_node; }
575 { skip_evaluation -= $1 == boolean_true_node;
576 $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
578 { $1 = truthvalue_conversion (default_conversion ($1));
579 skip_evaluation += $1 == boolean_false_node; }
581 { skip_evaluation += (($1 == boolean_true_node)
582 - ($1 == boolean_false_node)); }
584 { skip_evaluation -= $1 == boolean_true_node;
585 $$ = build_conditional_expr ($1, $4, $7); }
588 pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
589 /* Make sure first operand is calculated only once. */
590 $<ttype>2 = save_expr ($1);
591 $1 = truthvalue_conversion (default_conversion ($<ttype>2));
592 skip_evaluation += $1 == boolean_true_node; }
594 { skip_evaluation -= $1 == boolean_true_node;
595 $$ = build_conditional_expr ($1, $<ttype>2, $5); }
596 | expr_no_commas '=' expr_no_commas
598 $$ = build_modify_expr ($1, NOP_EXPR, $3);
599 class = TREE_CODE_CLASS (TREE_CODE ($$));
600 if (IS_EXPR_CODE_CLASS (class))
601 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
603 | expr_no_commas ASSIGN expr_no_commas
605 $$ = build_modify_expr ($1, $2, $3);
606 /* This inhibits warnings in truthvalue_conversion. */
607 class = TREE_CODE_CLASS (TREE_CODE ($$));
608 if (IS_EXPR_CODE_CLASS (class))
609 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
616 if (yychar == YYEMPTY)
618 $$ = build_external_ref ($1, yychar == '(');
622 { $$ = combine_strings ($1); }
624 { $$ = fname_decl (C_RID_CODE ($$), $$); }
625 | '(' typename ')' '{'
626 { start_init (NULL_TREE, NULL, 0);
627 $2 = groktypename ($2);
628 really_start_incremental_init ($2); }
629 initlist_maybe_comma '}' %prec UNARY
630 { tree constructor = pop_init_level (0);
634 if (pedantic && ! flag_isoc99)
635 pedwarn ("ISO C89 forbids compound literals");
636 $$ = build_compound_literal (type, constructor);
639 { char class = TREE_CODE_CLASS (TREE_CODE ($2));
640 if (IS_EXPR_CODE_CLASS (class))
641 C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
644 { $$ = error_mark_node; }
645 | compstmt_primary_start compstmt_nostart ')'
646 { tree saved_last_tree;
649 pedwarn ("ISO C forbids braced-groups within expressions");
652 saved_last_tree = COMPOUND_BODY ($1);
653 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
654 last_tree = saved_last_tree;
655 TREE_CHAIN (last_tree) = NULL_TREE;
657 last_expr_type = void_type_node;
658 $$ = build1 (STMT_EXPR, last_expr_type, $1);
659 TREE_SIDE_EFFECTS ($$) = 1;
661 | compstmt_primary_start error ')'
664 last_tree = COMPOUND_BODY ($1);
665 TREE_CHAIN (last_tree) = NULL_TREE;
666 $$ = error_mark_node;
668 | primary '(' exprlist ')' %prec '.'
669 { $$ = build_function_call ($1, $3); }
670 | VA_ARG '(' expr_no_commas ',' typename ')'
671 { $$ = build_va_arg ($3, groktypename ($5)); }
672 | CHOOSE_EXPR '(' expr_no_commas ',' expr_no_commas ',' expr_no_commas ')'
678 if (TREE_CODE (c) != INTEGER_CST)
679 error ("first argument to __builtin_choose_expr not a constant");
680 $$ = integer_zerop (c) ? $7 : $5;
682 | TYPES_COMPATIBLE_P '(' typename ',' typename ')'
686 e1 = TYPE_MAIN_VARIANT (groktypename ($3));
687 e2 = TYPE_MAIN_VARIANT (groktypename ($5));
689 $$ = comptypes (e1, e2)
690 ? build_int_2 (1, 0) : build_int_2 (0, 0);
692 | primary '[' expr ']' %prec '.'
693 { $$ = build_array_ref ($1, $3); }
694 | primary '.' identifier
697 if (!is_public ($1, $3))
698 $$ = error_mark_node;
701 $$ = build_component_ref ($1, $3);
703 | primary POINTSAT identifier
705 tree expr = build_indirect_ref ($1, "->");
708 if (!is_public (expr, $3))
709 $$ = error_mark_node;
712 $$ = build_component_ref (expr, $3);
715 { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
717 { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
720 { $$ = build_message_expr ($1); }
722 { $$ = build_selector_expr ($1); }
724 { $$ = build_protocol_expr ($1); }
726 { $$ = build_encode_expr ($1); }
728 { $$ = build_objc_string_object ($1); }
732 /* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
738 static int last_lineno = 0;
739 static const char *last_input_filename = 0;
741 $$ = chainon ($1, $2);
743 if (warn_traditional && !in_system_header
744 && (lineno != last_lineno || !last_input_filename ||
745 strcmp (last_input_filename, input_filename)))
747 warning ("traditional C rejects string concatenation");
748 last_lineno = lineno;
749 last_input_filename = input_filename;
756 /* Produces an STRING_CST with perhaps more STRING_CSTs chained
757 onto it, which is to be read as an ObjC string object. */
761 | objc_string '@' STRING
762 { $$ = chainon ($1, $3); }
766 old_style_parm_decls:
770 /* ... is used here to indicate a varargs function. */
773 pedwarn ("ISO C does not permit use of `varargs.h'"); }
776 /* The following are analogous to lineno_decl, decls and decl
777 except that they do not allow nested functions.
778 They are used for old-style parm decls. */
780 save_filename save_lineno datadecl
787 | datadecls lineno_datadecl
788 | lineno_datadecl errstmt
791 /* We don't allow prefix attributes here because they cause reduce/reduce
792 conflicts: we can't know whether we're parsing a function decl with
793 attribute suffix, or function defn with attribute prefix on first old
796 declspecs_ts_nosa setspecs initdecls ';'
797 { POP_DECLSPEC_STACK; }
798 | declspecs_nots_nosa setspecs notype_initdecls ';'
799 { POP_DECLSPEC_STACK; }
800 | declspecs_ts_nosa ';'
801 { shadow_tag_warned ($1, 1);
802 pedwarn ("empty declaration"); }
803 | declspecs_nots_nosa ';'
804 { pedwarn ("empty declaration"); }
807 /* This combination which saves a lineno before a decl
808 is the normal thing to use, rather than decl itself.
809 This is to avoid shift/reduce conflicts in contexts
810 where statement labels are allowed. */
812 save_filename save_lineno decl
816 /* records the type and storage class specs to use for processing
817 the declarators that follow.
818 Maintains a stack of outer-level values of current_declspecs,
819 for the sake of parm declarations nested in function declarators. */
820 setspecs: /* empty */
821 { pending_xref_error ();
823 split_specs_attrs ($<ttype>0,
824 ¤t_declspecs, &prefix_attributes);
825 all_prefix_attributes = prefix_attributes; }
828 /* Possibly attributes after a comma, which should reset all_prefix_attributes
829 to prefix_attributes with these ones chained on the front. */
832 { all_prefix_attributes = chainon ($1, prefix_attributes); }
836 declspecs_ts setspecs initdecls ';'
837 { POP_DECLSPEC_STACK; }
838 | declspecs_nots setspecs notype_initdecls ';'
839 { POP_DECLSPEC_STACK; }
840 | declspecs_ts setspecs nested_function
841 { POP_DECLSPEC_STACK; }
842 | declspecs_nots setspecs notype_nested_function
843 { POP_DECLSPEC_STACK; }
847 { RESTORE_WARN_FLAGS ($1); }
850 /* A list of declaration specifiers. These are:
852 - Storage class specifiers (SCSPEC), which for GCC currently include
853 function specifiers ("inline").
855 - Type specifiers (typespec_*).
857 - Type qualifiers (TYPE_QUAL).
859 - Attribute specifier lists (attributes).
861 These are stored as a TREE_LIST; the head of the list is the last
862 item in the specifier list. Each entry in the list has either a
863 TREE_PURPOSE that is an attribute specifier list, or a TREE_VALUE that
864 is a single other specifier or qualifier; and a TREE_CHAIN that is the
865 rest of the list. TREE_STATIC is set on the list if something other
866 than a storage class specifier or attribute has been seen; this is used
867 to warn for the obsolescent usage of storage class specifiers other than
868 at the start of the list. (Doing this properly would require function
869 specifiers to be handled separately from storage class specifiers.)
871 The various cases below are classified according to:
873 (a) Whether a storage class specifier is included or not; some
874 places in the grammar disallow storage class specifiers (_sc or _nosc).
876 (b) Whether a type specifier has been seen; after a type specifier,
877 a typedef name is an identifier to redeclare (_ts or _nots).
879 (c) Whether the list starts with an attribute; in certain places,
880 the grammar requires specifiers that don't start with an attribute
883 (d) Whether the list ends with an attribute (or a specifier such that
884 any following attribute would have been parsed as part of that specifier);
885 this avoids shift-reduce conflicts in the parsing of attributes
890 (i) Distinguish between function specifiers and storage class specifiers,
891 at least for the purpose of warnings about obsolescent usage.
893 (ii) Halve the number of productions here by eliminating the _sc/_nosc
894 distinction and instead checking where required that storage class
895 specifiers aren't present. */
897 /* Declspecs which contain at least one type specifier or typedef name.
898 (Just `const' or `volatile' is not enough.)
899 A typedef'd name following these is taken as a name to be declared.
900 Declspecs have a non-NULL TREE_VALUE, attributes do not. */
902 declspecs_nosc_nots_nosa_noea:
904 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
905 TREE_STATIC ($$) = 1; }
906 | declspecs_nosc_nots_nosa_noea TYPE_QUAL
907 { $$ = tree_cons (NULL_TREE, $2, $1);
908 TREE_STATIC ($$) = 1; }
909 | declspecs_nosc_nots_nosa_ea TYPE_QUAL
910 { $$ = tree_cons (NULL_TREE, $2, $1);
911 TREE_STATIC ($$) = 1; }
914 declspecs_nosc_nots_nosa_ea:
915 declspecs_nosc_nots_nosa_noea attributes
916 { $$ = tree_cons ($2, NULL_TREE, $1);
917 TREE_STATIC ($$) = TREE_STATIC ($1); }
920 declspecs_nosc_nots_sa_noea:
921 declspecs_nosc_nots_sa_noea TYPE_QUAL
922 { $$ = tree_cons (NULL_TREE, $2, $1);
923 TREE_STATIC ($$) = 1; }
924 | declspecs_nosc_nots_sa_ea TYPE_QUAL
925 { $$ = tree_cons (NULL_TREE, $2, $1);
926 TREE_STATIC ($$) = 1; }
929 declspecs_nosc_nots_sa_ea:
931 { $$ = tree_cons ($1, NULL_TREE, NULL_TREE);
932 TREE_STATIC ($$) = 0; }
933 | declspecs_nosc_nots_sa_noea attributes
934 { $$ = tree_cons ($2, NULL_TREE, $1);
935 TREE_STATIC ($$) = TREE_STATIC ($1); }
938 declspecs_nosc_ts_nosa_noea:
940 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
941 TREE_STATIC ($$) = 1; }
942 | declspecs_nosc_ts_nosa_noea TYPE_QUAL
943 { $$ = tree_cons (NULL_TREE, $2, $1);
944 TREE_STATIC ($$) = 1; }
945 | declspecs_nosc_ts_nosa_ea TYPE_QUAL
946 { $$ = tree_cons (NULL_TREE, $2, $1);
947 TREE_STATIC ($$) = 1; }
948 | declspecs_nosc_ts_nosa_noea typespec_reserved_nonattr
949 { $$ = tree_cons (NULL_TREE, $2, $1);
950 TREE_STATIC ($$) = 1; }
951 | declspecs_nosc_ts_nosa_ea typespec_reserved_nonattr
952 { $$ = tree_cons (NULL_TREE, $2, $1);
953 TREE_STATIC ($$) = 1; }
954 | declspecs_nosc_nots_nosa_noea typespec_nonattr
955 { $$ = tree_cons (NULL_TREE, $2, $1);
956 TREE_STATIC ($$) = 1; }
957 | declspecs_nosc_nots_nosa_ea typespec_nonattr
958 { $$ = tree_cons (NULL_TREE, $2, $1);
959 TREE_STATIC ($$) = 1; }
962 declspecs_nosc_ts_nosa_ea:
964 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
965 TREE_STATIC ($$) = 1; }
966 | declspecs_nosc_ts_nosa_noea attributes
967 { $$ = tree_cons ($2, NULL_TREE, $1);
968 TREE_STATIC ($$) = TREE_STATIC ($1); }
969 | declspecs_nosc_ts_nosa_noea typespec_reserved_attr
970 { $$ = tree_cons (NULL_TREE, $2, $1);
971 TREE_STATIC ($$) = 1; }
972 | declspecs_nosc_ts_nosa_ea typespec_reserved_attr
973 { $$ = tree_cons (NULL_TREE, $2, $1);
974 TREE_STATIC ($$) = 1; }
975 | declspecs_nosc_nots_nosa_noea typespec_attr
976 { $$ = tree_cons (NULL_TREE, $2, $1);
977 TREE_STATIC ($$) = 1; }
978 | declspecs_nosc_nots_nosa_ea typespec_attr
979 { $$ = tree_cons (NULL_TREE, $2, $1);
980 TREE_STATIC ($$) = 1; }
983 declspecs_nosc_ts_sa_noea:
984 declspecs_nosc_ts_sa_noea TYPE_QUAL
985 { $$ = tree_cons (NULL_TREE, $2, $1);
986 TREE_STATIC ($$) = 1; }
987 | declspecs_nosc_ts_sa_ea TYPE_QUAL
988 { $$ = tree_cons (NULL_TREE, $2, $1);
989 TREE_STATIC ($$) = 1; }
990 | declspecs_nosc_ts_sa_noea typespec_reserved_nonattr
991 { $$ = tree_cons (NULL_TREE, $2, $1);
992 TREE_STATIC ($$) = 1; }
993 | declspecs_nosc_ts_sa_ea typespec_reserved_nonattr
994 { $$ = tree_cons (NULL_TREE, $2, $1);
995 TREE_STATIC ($$) = 1; }
996 | declspecs_nosc_nots_sa_noea typespec_nonattr
997 { $$ = tree_cons (NULL_TREE, $2, $1);
998 TREE_STATIC ($$) = 1; }
999 | declspecs_nosc_nots_sa_ea typespec_nonattr
1000 { $$ = tree_cons (NULL_TREE, $2, $1);
1001 TREE_STATIC ($$) = 1; }
1004 declspecs_nosc_ts_sa_ea:
1005 declspecs_nosc_ts_sa_noea attributes
1006 { $$ = tree_cons ($2, NULL_TREE, $1);
1007 TREE_STATIC ($$) = TREE_STATIC ($1); }
1008 | declspecs_nosc_ts_sa_noea typespec_reserved_attr
1009 { $$ = tree_cons (NULL_TREE, $2, $1);
1010 TREE_STATIC ($$) = 1; }
1011 | declspecs_nosc_ts_sa_ea typespec_reserved_attr
1012 { $$ = tree_cons (NULL_TREE, $2, $1);
1013 TREE_STATIC ($$) = 1; }
1014 | declspecs_nosc_nots_sa_noea typespec_attr
1015 { $$ = tree_cons (NULL_TREE, $2, $1);
1016 TREE_STATIC ($$) = 1; }
1017 | declspecs_nosc_nots_sa_ea typespec_attr
1018 { $$ = tree_cons (NULL_TREE, $2, $1);
1019 TREE_STATIC ($$) = 1; }
1022 declspecs_sc_nots_nosa_noea:
1024 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
1025 TREE_STATIC ($$) = 0; }
1026 | declspecs_sc_nots_nosa_noea TYPE_QUAL
1027 { $$ = tree_cons (NULL_TREE, $2, $1);
1028 TREE_STATIC ($$) = 1; }
1029 | declspecs_sc_nots_nosa_ea TYPE_QUAL
1030 { $$ = tree_cons (NULL_TREE, $2, $1);
1031 TREE_STATIC ($$) = 1; }
1032 | declspecs_nosc_nots_nosa_noea SCSPEC
1033 { if (extra_warnings && TREE_STATIC ($1))
1034 warning ("`%s' is not at beginning of declaration",
1035 IDENTIFIER_POINTER ($2));
1036 $$ = tree_cons (NULL_TREE, $2, $1);
1037 TREE_STATIC ($$) = TREE_STATIC ($1); }
1038 | declspecs_nosc_nots_nosa_ea SCSPEC
1039 { if (extra_warnings && TREE_STATIC ($1))
1040 warning ("`%s' is not at beginning of declaration",
1041 IDENTIFIER_POINTER ($2));
1042 $$ = tree_cons (NULL_TREE, $2, $1);
1043 TREE_STATIC ($$) = TREE_STATIC ($1); }
1044 | declspecs_sc_nots_nosa_noea SCSPEC
1045 { if (extra_warnings && TREE_STATIC ($1))
1046 warning ("`%s' is not at beginning of declaration",
1047 IDENTIFIER_POINTER ($2));
1048 $$ = tree_cons (NULL_TREE, $2, $1);
1049 TREE_STATIC ($$) = TREE_STATIC ($1); }
1050 | declspecs_sc_nots_nosa_ea SCSPEC
1051 { if (extra_warnings && TREE_STATIC ($1))
1052 warning ("`%s' is not at beginning of declaration",
1053 IDENTIFIER_POINTER ($2));
1054 $$ = tree_cons (NULL_TREE, $2, $1);
1055 TREE_STATIC ($$) = TREE_STATIC ($1); }
1058 declspecs_sc_nots_nosa_ea:
1059 declspecs_sc_nots_nosa_noea attributes
1060 { $$ = tree_cons ($2, NULL_TREE, $1);
1061 TREE_STATIC ($$) = TREE_STATIC ($1); }
1064 declspecs_sc_nots_sa_noea:
1065 declspecs_sc_nots_sa_noea TYPE_QUAL
1066 { $$ = tree_cons (NULL_TREE, $2, $1);
1067 TREE_STATIC ($$) = 1; }
1068 | declspecs_sc_nots_sa_ea TYPE_QUAL
1069 { $$ = tree_cons (NULL_TREE, $2, $1);
1070 TREE_STATIC ($$) = 1; }
1071 | declspecs_nosc_nots_sa_noea SCSPEC
1072 { if (extra_warnings && TREE_STATIC ($1))
1073 warning ("`%s' is not at beginning of declaration",
1074 IDENTIFIER_POINTER ($2));
1075 $$ = tree_cons (NULL_TREE, $2, $1);
1076 TREE_STATIC ($$) = TREE_STATIC ($1); }
1077 | declspecs_nosc_nots_sa_ea SCSPEC
1078 { if (extra_warnings && TREE_STATIC ($1))
1079 warning ("`%s' is not at beginning of declaration",
1080 IDENTIFIER_POINTER ($2));
1081 $$ = tree_cons (NULL_TREE, $2, $1);
1082 TREE_STATIC ($$) = TREE_STATIC ($1); }
1083 | declspecs_sc_nots_sa_noea SCSPEC
1084 { if (extra_warnings && TREE_STATIC ($1))
1085 warning ("`%s' is not at beginning of declaration",
1086 IDENTIFIER_POINTER ($2));
1087 $$ = tree_cons (NULL_TREE, $2, $1);
1088 TREE_STATIC ($$) = TREE_STATIC ($1); }
1089 | declspecs_sc_nots_sa_ea SCSPEC
1090 { if (extra_warnings && TREE_STATIC ($1))
1091 warning ("`%s' is not at beginning of declaration",
1092 IDENTIFIER_POINTER ($2));
1093 $$ = tree_cons (NULL_TREE, $2, $1);
1094 TREE_STATIC ($$) = TREE_STATIC ($1); }
1097 declspecs_sc_nots_sa_ea:
1098 declspecs_sc_nots_sa_noea attributes
1099 { $$ = tree_cons ($2, NULL_TREE, $1);
1100 TREE_STATIC ($$) = TREE_STATIC ($1); }
1103 declspecs_sc_ts_nosa_noea:
1104 declspecs_sc_ts_nosa_noea TYPE_QUAL
1105 { $$ = tree_cons (NULL_TREE, $2, $1);
1106 TREE_STATIC ($$) = 1; }
1107 | declspecs_sc_ts_nosa_ea TYPE_QUAL
1108 { $$ = tree_cons (NULL_TREE, $2, $1);
1109 TREE_STATIC ($$) = 1; }
1110 | declspecs_sc_ts_nosa_noea typespec_reserved_nonattr
1111 { $$ = tree_cons (NULL_TREE, $2, $1);
1112 TREE_STATIC ($$) = 1; }
1113 | declspecs_sc_ts_nosa_ea typespec_reserved_nonattr
1114 { $$ = tree_cons (NULL_TREE, $2, $1);
1115 TREE_STATIC ($$) = 1; }
1116 | declspecs_sc_nots_nosa_noea typespec_nonattr
1117 { $$ = tree_cons (NULL_TREE, $2, $1);
1118 TREE_STATIC ($$) = 1; }
1119 | declspecs_sc_nots_nosa_ea typespec_nonattr
1120 { $$ = tree_cons (NULL_TREE, $2, $1);
1121 TREE_STATIC ($$) = 1; }
1122 | declspecs_nosc_ts_nosa_noea SCSPEC
1123 { if (extra_warnings && TREE_STATIC ($1))
1124 warning ("`%s' is not at beginning of declaration",
1125 IDENTIFIER_POINTER ($2));
1126 $$ = tree_cons (NULL_TREE, $2, $1);
1127 TREE_STATIC ($$) = TREE_STATIC ($1); }
1128 | declspecs_nosc_ts_nosa_ea SCSPEC
1129 { if (extra_warnings && TREE_STATIC ($1))
1130 warning ("`%s' is not at beginning of declaration",
1131 IDENTIFIER_POINTER ($2));
1132 $$ = tree_cons (NULL_TREE, $2, $1);
1133 TREE_STATIC ($$) = TREE_STATIC ($1); }
1134 | declspecs_sc_ts_nosa_noea SCSPEC
1135 { if (extra_warnings && TREE_STATIC ($1))
1136 warning ("`%s' is not at beginning of declaration",
1137 IDENTIFIER_POINTER ($2));
1138 $$ = tree_cons (NULL_TREE, $2, $1);
1139 TREE_STATIC ($$) = TREE_STATIC ($1); }
1140 | declspecs_sc_ts_nosa_ea SCSPEC
1141 { if (extra_warnings && TREE_STATIC ($1))
1142 warning ("`%s' is not at beginning of declaration",
1143 IDENTIFIER_POINTER ($2));
1144 $$ = tree_cons (NULL_TREE, $2, $1);
1145 TREE_STATIC ($$) = TREE_STATIC ($1); }
1148 declspecs_sc_ts_nosa_ea:
1149 declspecs_sc_ts_nosa_noea attributes
1150 { $$ = tree_cons ($2, NULL_TREE, $1);
1151 TREE_STATIC ($$) = TREE_STATIC ($1); }
1152 | declspecs_sc_ts_nosa_noea typespec_reserved_attr
1153 { $$ = tree_cons (NULL_TREE, $2, $1);
1154 TREE_STATIC ($$) = 1; }
1155 | declspecs_sc_ts_nosa_ea typespec_reserved_attr
1156 { $$ = tree_cons (NULL_TREE, $2, $1);
1157 TREE_STATIC ($$) = 1; }
1158 | declspecs_sc_nots_nosa_noea typespec_attr
1159 { $$ = tree_cons (NULL_TREE, $2, $1);
1160 TREE_STATIC ($$) = 1; }
1161 | declspecs_sc_nots_nosa_ea typespec_attr
1162 { $$ = tree_cons (NULL_TREE, $2, $1);
1163 TREE_STATIC ($$) = 1; }
1166 declspecs_sc_ts_sa_noea:
1167 declspecs_sc_ts_sa_noea TYPE_QUAL
1168 { $$ = tree_cons (NULL_TREE, $2, $1);
1169 TREE_STATIC ($$) = 1; }
1170 | declspecs_sc_ts_sa_ea TYPE_QUAL
1171 { $$ = tree_cons (NULL_TREE, $2, $1);
1172 TREE_STATIC ($$) = 1; }
1173 | declspecs_sc_ts_sa_noea typespec_reserved_nonattr
1174 { $$ = tree_cons (NULL_TREE, $2, $1);
1175 TREE_STATIC ($$) = 1; }
1176 | declspecs_sc_ts_sa_ea typespec_reserved_nonattr
1177 { $$ = tree_cons (NULL_TREE, $2, $1);
1178 TREE_STATIC ($$) = 1; }
1179 | declspecs_sc_nots_sa_noea typespec_nonattr
1180 { $$ = tree_cons (NULL_TREE, $2, $1);
1181 TREE_STATIC ($$) = 1; }
1182 | declspecs_sc_nots_sa_ea typespec_nonattr
1183 { $$ = tree_cons (NULL_TREE, $2, $1);
1184 TREE_STATIC ($$) = 1; }
1185 | declspecs_nosc_ts_sa_noea SCSPEC
1186 { if (extra_warnings && TREE_STATIC ($1))
1187 warning ("`%s' is not at beginning of declaration",
1188 IDENTIFIER_POINTER ($2));
1189 $$ = tree_cons (NULL_TREE, $2, $1);
1190 TREE_STATIC ($$) = TREE_STATIC ($1); }
1191 | declspecs_nosc_ts_sa_ea SCSPEC
1192 { if (extra_warnings && TREE_STATIC ($1))
1193 warning ("`%s' is not at beginning of declaration",
1194 IDENTIFIER_POINTER ($2));
1195 $$ = tree_cons (NULL_TREE, $2, $1);
1196 TREE_STATIC ($$) = TREE_STATIC ($1); }
1197 | declspecs_sc_ts_sa_noea SCSPEC
1198 { if (extra_warnings && TREE_STATIC ($1))
1199 warning ("`%s' is not at beginning of declaration",
1200 IDENTIFIER_POINTER ($2));
1201 $$ = tree_cons (NULL_TREE, $2, $1);
1202 TREE_STATIC ($$) = TREE_STATIC ($1); }
1203 | declspecs_sc_ts_sa_ea SCSPEC
1204 { if (extra_warnings && TREE_STATIC ($1))
1205 warning ("`%s' is not at beginning of declaration",
1206 IDENTIFIER_POINTER ($2));
1207 $$ = tree_cons (NULL_TREE, $2, $1);
1208 TREE_STATIC ($$) = TREE_STATIC ($1); }
1211 declspecs_sc_ts_sa_ea:
1212 declspecs_sc_ts_sa_noea attributes
1213 { $$ = tree_cons ($2, NULL_TREE, $1);
1214 TREE_STATIC ($$) = TREE_STATIC ($1); }
1215 | declspecs_sc_ts_sa_noea typespec_reserved_attr
1216 { $$ = tree_cons (NULL_TREE, $2, $1);
1217 TREE_STATIC ($$) = 1; }
1218 | declspecs_sc_ts_sa_ea typespec_reserved_attr
1219 { $$ = tree_cons (NULL_TREE, $2, $1);
1220 TREE_STATIC ($$) = 1; }
1221 | declspecs_sc_nots_sa_noea typespec_attr
1222 { $$ = tree_cons (NULL_TREE, $2, $1);
1223 TREE_STATIC ($$) = 1; }
1224 | declspecs_sc_nots_sa_ea typespec_attr
1225 { $$ = tree_cons (NULL_TREE, $2, $1);
1226 TREE_STATIC ($$) = 1; }
1229 /* Particular useful classes of declspecs. */
1231 declspecs_nosc_ts_nosa_noea
1232 | declspecs_nosc_ts_nosa_ea
1233 | declspecs_nosc_ts_sa_noea
1234 | declspecs_nosc_ts_sa_ea
1235 | declspecs_sc_ts_nosa_noea
1236 | declspecs_sc_ts_nosa_ea
1237 | declspecs_sc_ts_sa_noea
1238 | declspecs_sc_ts_sa_ea
1242 declspecs_nosc_nots_nosa_noea
1243 | declspecs_nosc_nots_nosa_ea
1244 | declspecs_nosc_nots_sa_noea
1245 | declspecs_nosc_nots_sa_ea
1246 | declspecs_sc_nots_nosa_noea
1247 | declspecs_sc_nots_nosa_ea
1248 | declspecs_sc_nots_sa_noea
1249 | declspecs_sc_nots_sa_ea
1253 declspecs_nosc_ts_nosa_noea
1254 | declspecs_nosc_ts_nosa_ea
1255 | declspecs_sc_ts_nosa_noea
1256 | declspecs_sc_ts_nosa_ea
1259 declspecs_nots_nosa:
1260 declspecs_nosc_nots_nosa_noea
1261 | declspecs_nosc_nots_nosa_ea
1262 | declspecs_sc_nots_nosa_noea
1263 | declspecs_sc_nots_nosa_ea
1267 declspecs_nosc_ts_nosa_noea
1268 | declspecs_nosc_ts_nosa_ea
1269 | declspecs_nosc_ts_sa_noea
1270 | declspecs_nosc_ts_sa_ea
1273 declspecs_nosc_nots:
1274 declspecs_nosc_nots_nosa_noea
1275 | declspecs_nosc_nots_nosa_ea
1276 | declspecs_nosc_nots_sa_noea
1277 | declspecs_nosc_nots_sa_ea
1281 declspecs_nosc_ts_nosa_noea
1282 | declspecs_nosc_ts_nosa_ea
1283 | declspecs_nosc_ts_sa_noea
1284 | declspecs_nosc_ts_sa_ea
1285 | declspecs_nosc_nots_nosa_noea
1286 | declspecs_nosc_nots_nosa_ea
1287 | declspecs_nosc_nots_sa_noea
1288 | declspecs_nosc_nots_sa_ea
1292 declspecs_nosc_nots_nosa_noea
1293 | declspecs_nosc_nots_nosa_ea
1294 | declspecs_nosc_nots_sa_noea
1295 | declspecs_nosc_nots_sa_ea
1296 | declspecs_nosc_ts_nosa_noea
1297 | declspecs_nosc_ts_nosa_ea
1298 | declspecs_nosc_ts_sa_noea
1299 | declspecs_nosc_ts_sa_ea
1300 | declspecs_sc_nots_nosa_noea
1301 | declspecs_sc_nots_nosa_ea
1302 | declspecs_sc_nots_sa_noea
1303 | declspecs_sc_nots_sa_ea
1304 | declspecs_sc_ts_nosa_noea
1305 | declspecs_sc_ts_nosa_ea
1306 | declspecs_sc_ts_sa_noea
1307 | declspecs_sc_ts_sa_ea
1310 /* A (possibly empty) sequence of type qualifiers and attributes. */
1311 maybe_type_quals_attrs:
1314 | declspecs_nosc_nots
1318 /* A type specifier (but not a type qualifier).
1319 Once we have seen one of these in a declaration,
1320 if a typedef name appears then it is being redeclared.
1322 The _reserved versions start with a reserved word and may appear anywhere
1323 in the declaration specifiers; the _nonreserved versions may only
1324 appear before any other type specifiers, and after that are (if names)
1327 FIXME: should the _nonreserved version be restricted to names being
1328 redeclared only? The other entries there relate only the GNU extensions
1329 and Objective C, and are historically parsed thus, and don't make sense
1330 after other type specifiers, but it might be cleaner to count them as
1333 _attr means: specifiers that either end with attributes,
1334 or are such that any following attributes would
1335 be parsed as part of the specifier.
1337 _nonattr: specifiers. */
1340 typespec_reserved_nonattr
1341 | typespec_nonreserved_nonattr
1345 typespec_reserved_attr
1348 typespec_reserved_nonattr:
1350 { OBJC_NEED_RAW_IDENTIFIER (1); }
1354 typespec_reserved_attr:
1358 typespec_nonreserved_nonattr:
1360 { /* For a typedef name, record the meaning, not the name.
1361 In case of `foo foo, bar;'. */
1362 $$ = lookup_name ($1); }
1364 | CLASSNAME protocolrefs
1365 { $$ = get_static_reference ($1, $2); }
1366 | OBJECTNAME protocolrefs
1367 { $$ = get_object_reference ($2); }
1369 /* Make "<SomeProtocol>" equivalent to "id <SomeProtocol>"
1370 - nisse@lysator.liu.se */
1371 | non_empty_protocolrefs
1372 { $$ = get_object_reference ($1); }
1374 | TYPEOF '(' expr ')'
1375 { $$ = TREE_TYPE ($3); }
1376 | TYPEOF '(' typename ')'
1377 { $$ = groktypename ($3); }
1380 /* typespec_nonreserved_attr does not exist. */
1384 | initdecls ',' maybe_resetattrs initdcl
1389 | notype_initdecls ',' maybe_resetattrs notype_initdcl
1395 | ASM_KEYWORD '(' string ')'
1396 { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
1402 declarator maybeasm maybe_attribute '='
1403 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1404 chainon ($3, all_prefix_attributes));
1405 start_init ($<ttype>$, $2, global_bindings_p ()); }
1407 /* Note how the declaration of the variable is in effect while its init is parsed! */
1409 finish_decl ($<ttype>5, $6, $2); }
1410 | declarator maybeasm maybe_attribute
1411 { tree d = start_decl ($1, current_declspecs, 0,
1412 chainon ($3, all_prefix_attributes));
1413 finish_decl (d, NULL_TREE, $2);
1418 notype_declarator maybeasm maybe_attribute '='
1419 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1420 chainon ($3, all_prefix_attributes));
1421 start_init ($<ttype>$, $2, global_bindings_p ()); }
1423 /* Note how the declaration of the variable is in effect while its init is parsed! */
1425 finish_decl ($<ttype>5, $6, $2); }
1426 | notype_declarator maybeasm maybe_attribute
1427 { tree d = start_decl ($1, current_declspecs, 0,
1428 chainon ($3, all_prefix_attributes));
1429 finish_decl (d, NULL_TREE, $2); }
1431 /* the * rules are dummies to accept the Apollo extended syntax
1432 so that the header files compile. */
1443 | attributes attribute
1444 { $$ = chainon ($1, $2); }
1448 ATTRIBUTE '(' '(' attribute_list ')' ')'
1455 | attribute_list ',' attrib
1456 { $$ = chainon ($1, $3); }
1463 { $$ = build_tree_list ($1, NULL_TREE); }
1464 | any_word '(' IDENTIFIER ')'
1465 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
1466 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
1467 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
1468 | any_word '(' exprlist ')'
1469 { $$ = build_tree_list ($1, $3); }
1472 /* This still leaves out most reserved keywords,
1473 shouldn't we include them? */
1482 /* Initializers. `init' is the entry point. */
1487 { really_start_incremental_init (NULL_TREE); }
1488 initlist_maybe_comma '}'
1489 { $$ = pop_init_level (0); }
1491 { $$ = error_mark_node; }
1494 /* `initlist_maybe_comma' is the guts of an initializer in braces. */
1495 initlist_maybe_comma:
1498 pedwarn ("ISO C forbids empty initializer braces"); }
1499 | initlist1 maybecomma
1504 | initlist1 ',' initelt
1507 /* `initelt' is a single element of an initializer.
1508 It may use braces. */
1510 designator_list '=' initval
1511 { if (pedantic && ! flag_isoc99)
1512 pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
1513 | designator initval
1515 pedwarn ("obsolete use of designated initializer without `='"); }
1517 { set_init_label ($1);
1519 pedwarn ("obsolete use of designated initializer with `:'"); }
1526 { push_init_level (0); }
1527 initlist_maybe_comma '}'
1528 { process_init_element (pop_init_level (0)); }
1530 { process_init_element ($1); }
1536 | designator_list designator
1541 { set_init_label ($2); }
1542 /* These are for labeled elements. The syntax for an array element
1543 initializer conflicts with the syntax for an Objective-C message,
1544 so don't include these productions in the Objective-C grammar. */
1546 | '[' expr_no_commas ELLIPSIS expr_no_commas ']'
1547 { set_init_index ($2, $4);
1549 pedwarn ("ISO C forbids specifying range of elements to initialize"); }
1550 | '[' expr_no_commas ']'
1551 { set_init_index ($2, NULL_TREE); }
1558 pedwarn ("ISO C forbids nested functions");
1560 push_function_context ();
1561 if (! start_function (current_declspecs, $1,
1562 all_prefix_attributes))
1564 pop_function_context ();
1568 old_style_parm_decls
1569 { store_parm_decls (); }
1570 /* This used to use compstmt_or_error.
1571 That caused a bug with input `f(g) int g {}',
1572 where the use of YYERROR1 above caused an error
1573 which then was handled by compstmt_or_error.
1574 There followed a repeated execution of that same rule,
1575 which called YYERROR1 again, and so on. */
1576 save_filename save_lineno compstmt
1577 { tree decl = current_function_decl;
1578 DECL_SOURCE_FILE (decl) = $5;
1579 DECL_SOURCE_LINE (decl) = $6;
1580 finish_function (1);
1581 pop_function_context ();
1582 add_decl_stmt (decl); }
1585 notype_nested_function:
1588 pedwarn ("ISO C forbids nested functions");
1590 push_function_context ();
1591 if (! start_function (current_declspecs, $1,
1592 all_prefix_attributes))
1594 pop_function_context ();
1598 old_style_parm_decls
1599 { store_parm_decls (); }
1600 /* This used to use compstmt_or_error.
1601 That caused a bug with input `f(g) int g {}',
1602 where the use of YYERROR1 above caused an error
1603 which then was handled by compstmt_or_error.
1604 There followed a repeated execution of that same rule,
1605 which called YYERROR1 again, and so on. */
1606 save_filename save_lineno compstmt
1607 { tree decl = current_function_decl;
1608 DECL_SOURCE_FILE (decl) = $5;
1609 DECL_SOURCE_LINE (decl) = $6;
1610 finish_function (1);
1611 pop_function_context ();
1612 add_decl_stmt (decl); }
1615 /* Any kind of declarator (thus, all declarators allowed
1616 after an explicit typespec). */
1619 after_type_declarator
1623 /* A declarator that is allowed only after an explicit typespec. */
1625 after_type_declarator:
1626 '(' maybe_attribute after_type_declarator ')'
1627 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1628 | after_type_declarator '(' parmlist_or_identifiers %prec '.'
1629 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1630 /* | after_type_declarator '(' error ')' %prec '.'
1631 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1632 poplevel (0, 0, 0); } */
1633 | after_type_declarator array_declarator %prec '.'
1634 { $$ = set_array_declarator_type ($2, $1, 0); }
1635 | '*' maybe_type_quals_attrs after_type_declarator %prec UNARY
1636 { $$ = make_pointer_declarator ($2, $3); }
1643 /* Kinds of declarator that can appear in a parameter list
1644 in addition to notype_declarator. This is like after_type_declarator
1645 but does not allow a typedef name in parentheses as an identifier
1646 (because it would conflict with a function with that typedef as arg). */
1648 parm_declarator_starttypename
1649 | parm_declarator_nostarttypename
1652 parm_declarator_starttypename:
1653 parm_declarator_starttypename '(' parmlist_or_identifiers %prec '.'
1654 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1655 /* | parm_declarator_starttypename '(' error ')' %prec '.'
1656 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1657 poplevel (0, 0, 0); } */
1658 | parm_declarator_starttypename array_declarator %prec '.'
1659 { $$ = set_array_declarator_type ($2, $1, 0); }
1666 parm_declarator_nostarttypename:
1667 parm_declarator_nostarttypename '(' parmlist_or_identifiers %prec '.'
1668 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1669 /* | parm_declarator_nostarttypename '(' error ')' %prec '.'
1670 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1671 poplevel (0, 0, 0); } */
1672 | parm_declarator_nostarttypename array_declarator %prec '.'
1673 { $$ = set_array_declarator_type ($2, $1, 0); }
1674 | '*' maybe_type_quals_attrs parm_declarator_starttypename %prec UNARY
1675 { $$ = make_pointer_declarator ($2, $3); }
1676 | '*' maybe_type_quals_attrs parm_declarator_nostarttypename %prec UNARY
1677 { $$ = make_pointer_declarator ($2, $3); }
1678 | '(' maybe_attribute parm_declarator_nostarttypename ')'
1679 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1682 /* A declarator allowed whether or not there has been
1683 an explicit typespec. These cannot redeclare a typedef-name. */
1686 notype_declarator '(' parmlist_or_identifiers %prec '.'
1687 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1688 /* | notype_declarator '(' error ')' %prec '.'
1689 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1690 poplevel (0, 0, 0); } */
1691 | '(' maybe_attribute notype_declarator ')'
1692 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1693 | '*' maybe_type_quals_attrs notype_declarator %prec UNARY
1694 { $$ = make_pointer_declarator ($2, $3); }
1695 | notype_declarator array_declarator %prec '.'
1696 { $$ = set_array_declarator_type ($2, $1, 0); }
1721 /* structsp_attr: struct/union/enum specifiers that either
1722 end with attributes, or are such that any following attributes would
1723 be parsed as part of the struct/union/enum specifier.
1725 structsp_nonattr: other struct/union/enum specifiers. */
1728 struct_head identifier '{'
1729 { $$ = start_struct (RECORD_TYPE, $2);
1730 /* Start scope of tag before parsing components. */
1732 component_decl_list '}' maybe_attribute
1733 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1734 | struct_head '{' component_decl_list '}' maybe_attribute
1735 { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
1736 $3, chainon ($1, $5));
1738 | union_head identifier '{'
1739 { $$ = start_struct (UNION_TYPE, $2); }
1740 component_decl_list '}' maybe_attribute
1741 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1742 | union_head '{' component_decl_list '}' maybe_attribute
1743 { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
1744 $3, chainon ($1, $5));
1746 | enum_head identifier '{'
1747 { $$ = start_enum ($2); }
1748 enumlist maybecomma_warn '}' maybe_attribute
1749 { $$ = finish_enum ($<ttype>4, nreverse ($5),
1750 chainon ($1, $8)); }
1752 { $$ = start_enum (NULL_TREE); }
1753 enumlist maybecomma_warn '}' maybe_attribute
1754 { $$ = finish_enum ($<ttype>3, nreverse ($4),
1755 chainon ($1, $7)); }
1759 struct_head identifier
1760 { $$ = xref_tag (RECORD_TYPE, $2); }
1761 | union_head identifier
1762 { $$ = xref_tag (UNION_TYPE, $2); }
1763 | enum_head identifier
1764 { $$ = xref_tag (ENUMERAL_TYPE, $2);
1765 /* In ISO C, enumerated types can be referred to
1766 only if already defined. */
1767 if (pedantic && !COMPLETE_TYPE_P ($$))
1768 pedwarn ("ISO C forbids forward references to `enum' types"); }
1779 { if (pedantic && ! flag_isoc99)
1780 pedwarn ("comma at end of enumerator list"); }
1783 component_decl_list:
1784 component_decl_list2
1786 | component_decl_list2 component_decl
1787 { $$ = chainon ($1, $2);
1788 pedwarn ("no semicolon at end of struct or union"); }
1791 component_decl_list2: /* empty */
1793 | component_decl_list2 component_decl ';'
1794 { $$ = chainon ($1, $2); }
1795 | component_decl_list2 ';'
1797 pedwarn ("extra semicolon in struct or union specified"); }
1799 /* foo(sizeof(struct{ @defs(ClassName)})); */
1800 | DEFS '(' CLASSNAME ')'
1802 tree interface = lookup_interface ($3);
1805 $$ = get_class_ivars (interface);
1808 error ("cannot find interface declaration for `%s'",
1809 IDENTIFIER_POINTER ($3));
1817 declspecs_nosc_ts setspecs components
1819 POP_DECLSPEC_STACK; }
1820 | declspecs_nosc_ts setspecs save_filename save_lineno
1822 /* Support for unnamed structs or unions as members of
1823 structs or unions (which is [a] useful and [b] supports
1826 pedwarn ("ISO C doesn't support unnamed structs/unions");
1828 $$ = grokfield($3, $4, NULL, current_declspecs, NULL_TREE);
1829 POP_DECLSPEC_STACK; }
1830 | declspecs_nosc_nots setspecs components_notype
1832 POP_DECLSPEC_STACK; }
1833 | declspecs_nosc_nots
1835 pedwarn ("ISO C forbids member declarations with no members");
1840 | extension component_decl
1842 RESTORE_WARN_FLAGS ($1); }
1846 component_declarator
1847 | components ',' maybe_resetattrs component_declarator
1848 { $$ = chainon ($1, $4); }
1852 component_notype_declarator
1853 | components_notype ',' maybe_resetattrs component_notype_declarator
1854 { $$ = chainon ($1, $4); }
1857 component_declarator:
1858 save_filename save_lineno declarator maybe_attribute
1859 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1860 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1861 | save_filename save_lineno
1862 declarator ':' expr_no_commas maybe_attribute
1863 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1864 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1865 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1866 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1867 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1870 component_notype_declarator:
1871 save_filename save_lineno notype_declarator maybe_attribute
1872 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1873 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1874 | save_filename save_lineno
1875 notype_declarator ':' expr_no_commas maybe_attribute
1876 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1877 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1878 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1879 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1880 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1883 /* We chain the enumerators in reverse order.
1884 They are put in forward order where enumlist is used.
1885 (The order used to be significant, but no longer is so.
1886 However, we still maintain the order, just to be clean.) */
1890 | enumlist ',' enumerator
1891 { if ($1 == error_mark_node)
1894 $$ = chainon ($3, $1); }
1896 { $$ = error_mark_node; }
1902 { $$ = build_enumerator ($1, NULL_TREE); }
1903 | identifier '=' expr_no_commas
1904 { $$ = build_enumerator ($1, $3); }
1909 { tree specs, attrs;
1910 pending_xref_error ();
1911 split_specs_attrs ($1, &specs, &attrs);
1912 /* We don't yet support attributes here. */
1913 if (attrs != NULL_TREE)
1914 warning ("attributes on type name ignored");
1915 $<ttype>$ = specs; }
1917 { $$ = build_tree_list ($<ttype>2, $3); }
1920 absdcl: /* an absolute declarator */
1926 absdcl_maybe_attribute: /* absdcl maybe_attribute, but not just attributes */
1928 { $$ = build_tree_list (build_tree_list (current_declspecs,
1930 all_prefix_attributes); }
1932 { $$ = build_tree_list (build_tree_list (current_declspecs,
1934 all_prefix_attributes); }
1935 | absdcl1_noea attributes
1936 { $$ = build_tree_list (build_tree_list (current_declspecs,
1938 chainon ($2, all_prefix_attributes)); }
1941 absdcl1: /* a nonempty absolute declarator */
1948 | '*' maybe_type_quals_attrs absdcl1_noea
1949 { $$ = make_pointer_declarator ($2, $3); }
1953 '*' maybe_type_quals_attrs
1954 { $$ = make_pointer_declarator ($2, NULL_TREE); }
1955 | '*' maybe_type_quals_attrs absdcl1_ea
1956 { $$ = make_pointer_declarator ($2, $3); }
1960 '(' maybe_attribute absdcl1 ')'
1961 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1962 | direct_absdcl1 '(' parmlist
1963 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1964 | direct_absdcl1 array_declarator
1965 { $$ = set_array_declarator_type ($2, $1, 1); }
1967 { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
1969 { $$ = set_array_declarator_type ($1, NULL_TREE, 1); }
1972 /* The [...] part of a declarator for an array type. */
1976 { $$ = build_array_declarator ($2, NULL_TREE, 0, 0); }
1977 | '[' declspecs_nosc expr ']'
1978 { $$ = build_array_declarator ($3, $2, 0, 0); }
1980 { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 0); }
1981 | '[' declspecs_nosc ']'
1982 { $$ = build_array_declarator (NULL_TREE, $2, 0, 0); }
1984 { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 1); }
1985 | '[' declspecs_nosc '*' ']'
1986 { $$ = build_array_declarator (NULL_TREE, $2, 0, 1); }
1987 | '[' SCSPEC expr ']'
1988 { if (C_RID_CODE ($2) != RID_STATIC)
1989 error ("storage class specifier in array declarator");
1990 $$ = build_array_declarator ($3, NULL_TREE, 1, 0); }
1991 | '[' SCSPEC declspecs_nosc expr ']'
1992 { if (C_RID_CODE ($2) != RID_STATIC)
1993 error ("storage class specifier in array declarator");
1994 $$ = build_array_declarator ($4, $3, 1, 0); }
1995 | '[' declspecs_nosc SCSPEC expr ']'
1996 { if (C_RID_CODE ($3) != RID_STATIC)
1997 error ("storage class specifier in array declarator");
1998 $$ = build_array_declarator ($4, $2, 1, 0); }
2001 /* A nonempty series of declarations and statements (possibly followed by
2002 some labels) that can form the body of a compound statement.
2003 NOTE: we don't allow labels on declarations; this might seem like a
2004 natural extension, but there would be a conflict between attributes
2005 on the label and prefix attributes on the declaration. */
2008 lineno_stmt_decl_or_labels_ending_stmt
2009 | lineno_stmt_decl_or_labels_ending_decl
2010 | lineno_stmt_decl_or_labels_ending_label
2012 pedwarn ("deprecated use of label at end of compound statement");
2014 | lineno_stmt_decl_or_labels_ending_error
2017 lineno_stmt_decl_or_labels_ending_stmt:
2019 | lineno_stmt_decl_or_labels_ending_stmt lineno_stmt
2020 | lineno_stmt_decl_or_labels_ending_decl lineno_stmt
2021 | lineno_stmt_decl_or_labels_ending_label lineno_stmt
2022 | lineno_stmt_decl_or_labels_ending_error lineno_stmt
2025 lineno_stmt_decl_or_labels_ending_decl:
2027 | lineno_stmt_decl_or_labels_ending_stmt lineno_decl
2028 { if (pedantic && !flag_isoc99)
2029 pedwarn ("ISO C89 forbids mixed declarations and code"); }
2030 | lineno_stmt_decl_or_labels_ending_decl lineno_decl
2031 | lineno_stmt_decl_or_labels_ending_error lineno_decl
2034 lineno_stmt_decl_or_labels_ending_label:
2036 | lineno_stmt_decl_or_labels_ending_stmt lineno_label
2037 | lineno_stmt_decl_or_labels_ending_decl lineno_label
2038 | lineno_stmt_decl_or_labels_ending_label lineno_label
2039 | lineno_stmt_decl_or_labels_ending_error lineno_label
2042 lineno_stmt_decl_or_labels_ending_error:
2044 | lineno_stmt_decl_or_labels errstmt
2047 lineno_stmt_decl_or_labels:
2048 lineno_stmt_decl_or_labels_ending_stmt
2049 | lineno_stmt_decl_or_labels_ending_decl
2050 | lineno_stmt_decl_or_labels_ending_label
2051 | lineno_stmt_decl_or_labels_ending_error
2057 pushlevel: /* empty */
2060 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2062 if (objc_method_context)
2068 poplevel: /* empty */
2069 { $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
2071 /* Start and end blocks created for the new scopes of C99. */
2072 c99_block_start: /* empty */
2075 $$ = c_begin_compound_stmt ();
2078 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2080 if (objc_method_context)
2089 /* Productions using c99_block_start and c99_block_end will need to do what's
2090 in compstmt: RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); $$ = $2; where
2091 $1 is the value of c99_block_start and $2 of c99_block_end. */
2092 c99_block_end: /* empty */
2095 tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
2096 $$ = poplevel (kept_level_p (), 0, 0);
2097 SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
2098 = SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
2105 /* Read zero or more forward-declarations for labels
2106 that nested functions can jump to. */
2111 pedwarn ("ISO C forbids label declarations"); }
2116 | label_decls label_decl
2120 LABEL identifiers_or_typenames ';'
2122 for (link = $2; link; link = TREE_CHAIN (link))
2124 tree label = shadow_label (TREE_VALUE (link));
2125 C_DECLARED_LABEL_FLAG (label) = 1;
2126 add_decl_stmt (label);
2131 /* This is the body of a function definition.
2132 It causes syntax errors to ignore to the next openbrace. */
2139 compstmt_start: '{' { compstmt_count++;
2140 $$ = c_begin_compound_stmt (); }
2142 compstmt_nostart: '}'
2143 { $$ = convert (void_type_node, integer_zero_node); }
2144 | pushlevel maybe_label_decls compstmt_contents_nonempty '}' poplevel
2145 { $$ = poplevel (kept_level_p (), 1, 0);
2146 SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
2147 = SCOPE_STMT_BLOCK (TREE_VALUE ($5))
2151 compstmt_contents_nonempty:
2156 compstmt_primary_start:
2158 { if (current_function_decl == 0)
2160 error ("braced-group within expression allowed only inside a function");
2163 /* We must force a BLOCK for this level
2164 so that, if it is not expanded later,
2165 there is a way to turn off the entire subtree of blocks
2166 that are contained in it. */
2168 push_label_level ();
2170 $$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
2173 compstmt: compstmt_start compstmt_nostart
2174 { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2178 /* Value is number of statements counted as of the closeparen. */
2180 if_prefix c99_block_lineno_labeled_stmt
2181 { c_finish_then (); }
2182 /* Make sure c_expand_end_cond is run once
2183 for each call to c_expand_start_cond.
2184 Otherwise a crash is likely. */
2190 { c_expand_start_cond (truthvalue_conversion ($3),
2192 $<itype>$ = stmt_count;
2193 if_stmt_file = $<filename>-2;
2194 if_stmt_line = $<lineno>-1; }
2197 /* This is a subroutine of stmt.
2198 It is used twice, once for valid DO statements
2199 and once for catching errors in parsing the end test. */
2205 = add_stmt (build_stmt (DO_STMT, NULL_TREE,
2207 /* In the event that a parse error prevents
2208 parsing the complete do-statement, set the
2209 condition now. Otherwise, we can get crashes at
2210 RTL-generation time. */
2211 DO_COND ($<ttype>$) = error_mark_node; }
2212 c99_block_lineno_labeled_stmt WHILE
2214 RECHAIN_STMTS ($$, DO_BODY ($$)); }
2217 /* The forced readahead in here is because we might be at the end of a
2218 line, and the line and file won't be bumped until yylex absorbs the
2219 first token on the next line. */
2221 { if (yychar == YYEMPTY)
2223 $$ = input_filename; }
2227 { if (yychar == YYEMPTY)
2232 lineno_labeled_stmt:
2234 | lineno_label lineno_labeled_stmt
2237 /* Like lineno_labeled_stmt, but a block in C99. */
2238 c99_block_lineno_labeled_stmt:
2239 c99_block_start lineno_labeled_stmt c99_block_end
2241 RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); }
2245 save_filename save_lineno stmt
2248 STMT_LINENO ($3) = $2;
2249 /* ??? We currently have no way of recording
2250 the filename for a statement. This probably
2251 matters little in practice at the moment,
2252 but I suspect that problems will occur when
2253 doing inlining at the tree level. */
2259 save_filename save_lineno label
2262 STMT_LINENO ($3) = $2;
2267 select_or_iter_stmt:
2269 { c_expand_start_else ();
2270 $<itype>1 = stmt_count; }
2271 c99_block_lineno_labeled_stmt
2273 c_expand_end_cond ();
2274 if (extra_warnings && stmt_count == $<itype>1)
2275 warning ("empty body in an else-statement"); }
2276 | simple_if %prec IF
2277 { c_expand_end_cond ();
2278 /* This warning is here instead of in simple_if, because we
2279 do not want a warning if an empty if is followed by an
2280 else statement. Increment stmt_count so we don't
2281 give a second error if this is a nested `if'. */
2282 if (extra_warnings && stmt_count++ == $<itype>1)
2283 warning_with_file_and_line (if_stmt_file, if_stmt_line,
2284 "empty body in an if-statement"); }
2285 /* Make sure c_expand_end_cond is run once
2286 for each call to c_expand_start_cond.
2287 Otherwise a crash is likely. */
2288 | simple_if ELSE error
2289 { c_expand_end_cond (); }
2293 { $4 = truthvalue_conversion ($4);
2295 = add_stmt (build_stmt (WHILE_STMT, $4, NULL_TREE)); }
2296 c99_block_lineno_labeled_stmt
2297 { RECHAIN_STMTS ($<ttype>6, WHILE_BODY ($<ttype>6)); }
2300 { DO_COND ($1) = truthvalue_conversion ($3); }
2301 | do_stmt_start error
2304 { $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
2305 NULL_TREE, NULL_TREE);
2306 add_stmt ($<ttype>$); }
2309 RECHAIN_STMTS ($<ttype>2, FOR_INIT_STMT ($<ttype>2)); }
2312 FOR_COND ($<ttype>2) = truthvalue_conversion ($6); }
2314 { FOR_EXPR ($<ttype>2) = $9; }
2315 c99_block_lineno_labeled_stmt
2316 { RECHAIN_STMTS ($<ttype>2, FOR_BODY ($<ttype>2)); }
2317 | SWITCH '(' expr ')'
2319 $<ttype>$ = c_start_case ($3); }
2320 c99_block_lineno_labeled_stmt
2321 { c_finish_case (); }
2326 { add_stmt (build_stmt (EXPR_STMT, $1)); }
2328 { check_for_loop_decls (); }
2331 /* Parse a single real statement, not including any labels. */
2334 { stmt_count++; $$ = $1; }
2337 $$ = c_expand_expr_stmt ($1); }
2338 | c99_block_start select_or_iter_stmt c99_block_end
2340 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2344 $$ = add_stmt (build_break_stmt ()); }
2347 $$ = add_stmt (build_continue_stmt ()); }
2350 $$ = c_expand_return (NULL_TREE); }
2353 $$ = c_expand_return ($2); }
2354 | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
2356 $$ = simple_asm_stmt ($4); }
2357 /* This is the case with just output operands. */
2358 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
2360 $$ = build_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
2361 /* This is the case with input operands as well. */
2362 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2363 asm_operands ')' ';'
2365 $$ = build_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
2366 /* This is the case with clobbered registers as well. */
2367 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2368 asm_operands ':' asm_clobbers ')' ';'
2370 $$ = build_asm_stmt ($2, $4, $6, $8, $10); }
2371 | GOTO identifier ';'
2374 decl = lookup_label ($2);
2377 TREE_USED (decl) = 1;
2378 $$ = add_stmt (build_stmt (GOTO_STMT, decl));
2385 pedwarn ("ISO C forbids `goto *expr;'");
2387 $3 = convert (ptr_type_node, $3);
2388 $$ = add_stmt (build_stmt (GOTO_STMT, $3)); }
2393 /* Any kind of label, including jump labels and case labels.
2394 ANSI C accepts labels only before statements, but we allow them
2395 also at the end of a compound statement. */
2397 label: CASE expr_no_commas ':'
2399 $$ = do_case ($2, NULL_TREE); }
2400 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
2402 $$ = do_case ($2, $4); }
2405 $$ = do_case (NULL_TREE, NULL_TREE); }
2406 | identifier save_filename save_lineno ':' maybe_attribute
2407 { tree label = define_label ($2, $3, $1);
2411 decl_attributes (&label, $5, 0);
2412 $$ = add_stmt (build_stmt (LABEL_STMT, label));
2419 /* Either a type-qualifier or nothing. First thing in an `asm' statement. */
2423 { emit_line_note (input_filename, lineno);
2426 { emit_line_note (input_filename, lineno); }
2435 /* These are the operands other than the first string and colon
2436 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
2437 asm_operands: /* empty */
2439 | nonnull_asm_operands
2442 nonnull_asm_operands:
2444 | nonnull_asm_operands ',' asm_operand
2445 { $$ = chainon ($1, $3); }
2450 { $$ = build_tree_list (build_tree_list (NULL_TREE, $1), $3); }
2451 | '[' identifier ']' STRING '(' expr ')'
2452 { $$ = build_tree_list (build_tree_list ($2, $4), $6); }
2457 { $$ = tree_cons (NULL_TREE, combine_strings ($1), NULL_TREE); }
2458 | asm_clobbers ',' string
2459 { $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
2462 /* This is what appears inside the parens in a function declarator.
2463 Its value is a list of ..._TYPE nodes. Attributes must appear here
2464 to avoid a conflict with their appearance after an open parenthesis
2465 in an abstract declarator, as in
2466 "void bar (int (__attribute__((__mode__(SI))) int foo));". */
2470 clear_parm_order ();
2471 declare_parm_level (0); }
2474 parmlist_tags_warning ();
2475 poplevel (0, 0, 0); }
2483 pedwarn ("ISO C forbids forward parameter declarations");
2484 /* Mark the forward decls as such. */
2485 for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
2486 TREE_ASM_WRITTEN (parm) = 1;
2487 clear_parm_order (); }
2489 { /* Dummy action so attributes are in known place
2490 on parser stack. */ }
2494 { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
2497 /* This is what appears inside the parens in a function declarator.
2498 Is value is represented in the format that grokdeclarator expects. */
2499 parmlist_2: /* empty */
2500 { $$ = get_parm_info (0); }
2502 { $$ = get_parm_info (0);
2503 /* Gcc used to allow this as an extension. However, it does
2504 not work for all targets, and thus has been disabled.
2505 Also, since func (...) and func () are indistinguishable,
2506 it caused problems with the code in expand_builtin which
2507 tries to verify that BUILT_IN_NEXT_ARG is being used
2509 error ("ISO C requires a named argument before `...'");
2512 { $$ = get_parm_info (1); }
2513 | parms ',' ELLIPSIS
2514 { $$ = get_parm_info (0); }
2519 { push_parm_decl ($1); }
2521 { push_parm_decl ($3); }
2524 /* A single parameter declaration or parameter type name,
2525 as found in a parmlist. */
2527 declspecs_ts setspecs parm_declarator maybe_attribute
2528 { $$ = build_tree_list (build_tree_list (current_declspecs,
2530 chainon ($4, all_prefix_attributes));
2531 POP_DECLSPEC_STACK; }
2532 | declspecs_ts setspecs notype_declarator maybe_attribute
2533 { $$ = build_tree_list (build_tree_list (current_declspecs,
2535 chainon ($4, all_prefix_attributes));
2536 POP_DECLSPEC_STACK; }
2537 | declspecs_ts setspecs absdcl_maybe_attribute
2539 POP_DECLSPEC_STACK; }
2540 | declspecs_nots setspecs notype_declarator maybe_attribute
2541 { $$ = build_tree_list (build_tree_list (current_declspecs,
2543 chainon ($4, all_prefix_attributes));
2544 POP_DECLSPEC_STACK; }
2546 | declspecs_nots setspecs absdcl_maybe_attribute
2548 POP_DECLSPEC_STACK; }
2551 /* The first parm, which must suck attributes from off the top of the parser
2554 declspecs_ts_nosa setspecs_fp parm_declarator maybe_attribute
2555 { $$ = build_tree_list (build_tree_list (current_declspecs,
2557 chainon ($4, all_prefix_attributes));
2558 POP_DECLSPEC_STACK; }
2559 | declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
2560 { $$ = build_tree_list (build_tree_list (current_declspecs,
2562 chainon ($4, all_prefix_attributes));
2563 POP_DECLSPEC_STACK; }
2564 | declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
2566 POP_DECLSPEC_STACK; }
2567 | declspecs_nots_nosa setspecs_fp notype_declarator maybe_attribute
2568 { $$ = build_tree_list (build_tree_list (current_declspecs,
2570 chainon ($4, all_prefix_attributes));
2571 POP_DECLSPEC_STACK; }
2573 | declspecs_nots_nosa setspecs_fp absdcl_maybe_attribute
2575 POP_DECLSPEC_STACK; }
2580 { prefix_attributes = chainon (prefix_attributes, $<ttype>-2);
2581 all_prefix_attributes = prefix_attributes; }
2584 /* This is used in a function definition
2585 where either a parmlist or an identifier list is ok.
2586 Its value is a list of ..._TYPE nodes or a list of identifiers. */
2587 parmlist_or_identifiers:
2589 clear_parm_order ();
2590 declare_parm_level (1); }
2591 parmlist_or_identifiers_1
2593 parmlist_tags_warning ();
2594 poplevel (0, 0, 0); }
2597 parmlist_or_identifiers_1:
2601 for (t = $1; t; t = TREE_CHAIN (t))
2602 if (TREE_VALUE (t) == NULL_TREE)
2603 error ("`...' in old-style identifier list");
2604 $$ = tree_cons (NULL_TREE, NULL_TREE, $1); }
2607 /* A nonempty list of identifiers. */
2610 { $$ = build_tree_list (NULL_TREE, $1); }
2611 | identifiers ',' IDENTIFIER
2612 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2615 /* A nonempty list of identifiers, including typenames. */
2616 identifiers_or_typenames:
2618 { $$ = build_tree_list (NULL_TREE, $1); }
2619 | identifiers_or_typenames ',' identifier
2620 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2625 { $$ = SAVE_WARN_FLAGS();
2627 warn_pointer_arith = 0; }
2631 /* Objective-C productions. */
2641 if (objc_implementation_context)
2643 finish_class (objc_implementation_context);
2644 objc_ivar_chain = NULL_TREE;
2645 objc_implementation_context = NULL_TREE;
2648 warning ("`@end' must appear in an implementation context");
2652 /* A nonempty list of identifiers. */
2655 { $$ = build_tree_list (NULL_TREE, $1); }
2656 | identifier_list ',' identifier
2657 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2661 CLASS identifier_list ';'
2663 objc_declare_class ($2);
2667 ALIAS identifier identifier ';'
2669 objc_declare_alias ($2, $3);
2673 INTERFACE identifier protocolrefs '{'
2675 objc_interface_context = objc_ivar_context
2676 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2677 objc_public_flag = 0;
2681 continue_class (objc_interface_context);
2686 finish_class (objc_interface_context);
2687 objc_interface_context = NULL_TREE;
2690 | INTERFACE identifier protocolrefs
2692 objc_interface_context
2693 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2694 continue_class (objc_interface_context);
2699 finish_class (objc_interface_context);
2700 objc_interface_context = NULL_TREE;
2703 | INTERFACE identifier ':' identifier protocolrefs '{'
2705 objc_interface_context = objc_ivar_context
2706 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2707 objc_public_flag = 0;
2711 continue_class (objc_interface_context);
2716 finish_class (objc_interface_context);
2717 objc_interface_context = NULL_TREE;
2720 | INTERFACE identifier ':' identifier protocolrefs
2722 objc_interface_context
2723 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2724 continue_class (objc_interface_context);
2729 finish_class (objc_interface_context);
2730 objc_interface_context = NULL_TREE;
2733 | IMPLEMENTATION identifier '{'
2735 objc_implementation_context = objc_ivar_context
2736 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2737 objc_public_flag = 0;
2742 = continue_class (objc_implementation_context);
2745 | IMPLEMENTATION identifier
2747 objc_implementation_context
2748 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2750 = continue_class (objc_implementation_context);
2753 | IMPLEMENTATION identifier ':' identifier '{'
2755 objc_implementation_context = objc_ivar_context
2756 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2757 objc_public_flag = 0;
2762 = continue_class (objc_implementation_context);
2765 | IMPLEMENTATION identifier ':' identifier
2767 objc_implementation_context
2768 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2770 = continue_class (objc_implementation_context);
2773 | INTERFACE identifier '(' identifier ')' protocolrefs
2775 objc_interface_context
2776 = start_class (CATEGORY_INTERFACE_TYPE, $2, $4, $6);
2777 continue_class (objc_interface_context);
2782 finish_class (objc_interface_context);
2783 objc_interface_context = NULL_TREE;
2786 | IMPLEMENTATION identifier '(' identifier ')'
2788 objc_implementation_context
2789 = start_class (CATEGORY_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2791 = continue_class (objc_implementation_context);
2796 PROTOCOL identifier protocolrefs
2798 objc_pq_context = 1;
2799 objc_interface_context
2800 = start_protocol(PROTOCOL_INTERFACE_TYPE, $2, $3);
2804 objc_pq_context = 0;
2805 finish_protocol(objc_interface_context);
2806 objc_interface_context = NULL_TREE;
2808 /* The @protocol forward-declaration production introduces a
2809 reduce/reduce conflict on ';', which should be resolved in
2810 favor of the production 'identifier_list -> identifier'. */
2811 | PROTOCOL identifier_list ';'
2813 objc_declare_protocols ($2);
2822 | non_empty_protocolrefs
2825 non_empty_protocolrefs:
2826 ARITHCOMPARE identifier_list ARITHCOMPARE
2828 if ($1 == LT_EXPR && $3 == GT_EXPR)
2836 ivar_decl_list visibility_spec ivar_decls
2841 PRIVATE { objc_public_flag = 2; }
2842 | PROTECTED { objc_public_flag = 0; }
2843 | PUBLIC { objc_public_flag = 1; }
2851 | ivar_decls ivar_decl ';'
2855 pedwarn ("extra semicolon in struct or union specified");
2860 /* There is a shift-reduce conflict here, because `components' may
2861 start with a `typename'. It happens that shifting (the default resolution)
2862 does the right thing, because it treats the `typename' as part of
2863 a `typed_typespecs'.
2865 It is possible that this same technique would allow the distinction
2866 between `notype_initdecls' and `initdecls' to be eliminated.
2867 But I am being cautious and not trying it. */
2870 declspecs_nosc_ts setspecs ivars
2872 POP_DECLSPEC_STACK; }
2873 | declspecs_nosc_nots setspecs ivars
2875 POP_DECLSPEC_STACK; }
2884 | ivars ',' maybe_resetattrs ivar_declarator
2890 $$ = add_instance_variable (objc_ivar_context,
2892 $1, current_declspecs,
2895 | declarator ':' expr_no_commas
2897 $$ = add_instance_variable (objc_ivar_context,
2899 $1, current_declspecs, $3);
2901 | ':' expr_no_commas
2903 $$ = add_instance_variable (objc_ivar_context,
2906 current_declspecs, $2);
2912 { objc_inherit_code = CLASS_METHOD_DECL; }
2914 { objc_inherit_code = INSTANCE_METHOD_DECL; }
2920 objc_pq_context = 1;
2921 if (!objc_implementation_context)
2922 fatal_error ("method definition not in class context");
2926 objc_pq_context = 0;
2927 if (objc_inherit_code == CLASS_METHOD_DECL)
2928 add_class_method (objc_implementation_context, $3);
2930 add_instance_method (objc_implementation_context, $3);
2931 start_method_def ($3);
2935 continue_method_def ();
2939 finish_method_def ();
2943 /* the reason for the strange actions in this rule
2944 is so that notype_initdecls when reached via datadef
2945 can find a valid list of type and sc specs in $0. */
2949 | {$<ttype>$ = NULL_TREE; } methodprotolist2
2952 methodprotolist2: /* eliminates a shift/reduce conflict */
2955 | methodprotolist2 methodproto
2956 | methodprotolist2 {$<ttype>$ = NULL_TREE; } datadef
2967 /* Remember protocol qualifiers in prototypes. */
2968 objc_pq_context = 1;
2972 /* Forget protocol qualifiers here. */
2973 objc_pq_context = 0;
2974 if (objc_inherit_code == CLASS_METHOD_DECL)
2975 add_class_method (objc_interface_context, $3);
2977 add_instance_method (objc_interface_context, $3);
2983 '(' typename ')' unaryselector
2985 $$ = build_method_decl (objc_inherit_code, $2, $4, NULL_TREE);
2990 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, NULL_TREE);
2993 | '(' typename ')' keywordselector optparmlist
2995 $$ = build_method_decl (objc_inherit_code, $2, $4, $5);
2998 | keywordselector optparmlist
3000 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, $2);
3004 /* "optarglist" assumes that start_method_def has already been called...
3005 if it is not, the "xdecls" will not be placed in the proper scope */
3012 /* to get around the following situation: "int foo (int a) int b; {}" that
3013 is synthesized when parsing "- a:a b:b; id c; id d; { ... }" */
3028 declspecs_ts setspecs myparms ';'
3029 { POP_DECLSPEC_STACK; }
3031 { shadow_tag ($1); }
3032 | declspecs_nots ';'
3033 { pedwarn ("empty declaration"); }
3038 { push_parm_decl ($1); }
3039 | myparms ',' myparm
3040 { push_parm_decl ($3); }
3043 /* A single parameter declaration or parameter type name,
3044 as found in a parmlist. DOES NOT ALLOW AN INITIALIZER OR ASMSPEC */
3047 parm_declarator maybe_attribute
3048 { $$ = build_tree_list (build_tree_list (current_declspecs,
3050 chainon ($2, all_prefix_attributes)); }
3051 | notype_declarator maybe_attribute
3052 { $$ = build_tree_list (build_tree_list (current_declspecs,
3054 chainon ($2, all_prefix_attributes)); }
3055 | absdcl_maybe_attribute
3066 /* oh what a kludge! */
3067 $$ = objc_ellipsis_node;
3075 /* returns a tree list node generated by get_parm_info */
3088 | keywordselector keyworddecl
3090 $$ = chainon ($1, $2);
3103 ENUM | STRUCT | UNION | IF | ELSE | WHILE | DO | FOR
3104 | SWITCH | CASE | DEFAULT | BREAK | CONTINUE | RETURN
3105 | GOTO | ASM_KEYWORD | SIZEOF | TYPEOF | ALIGNOF
3106 | TYPESPEC | TYPE_QUAL
3110 selector ':' '(' typename ')' identifier
3112 $$ = build_keyword_decl ($1, $4, $6);
3115 | selector ':' identifier
3117 $$ = build_keyword_decl ($1, NULL_TREE, $3);
3120 | ':' '(' typename ')' identifier
3122 $$ = build_keyword_decl (NULL_TREE, $3, $5);
3127 $$ = build_keyword_decl (NULL_TREE, NULL_TREE, $2);
3138 | keywordarglist keywordarg
3140 $$ = chainon ($1, $2);
3148 if (TREE_CHAIN ($1) == NULL_TREE)
3149 /* just return the expr., remove a level of indirection */
3150 $$ = TREE_VALUE ($1);
3152 /* we have a comma expr., we will collapse later */
3158 selector ':' keywordexpr
3160 $$ = build_tree_list ($1, $3);
3164 $$ = build_tree_list (NULL_TREE, $2);
3172 $$ = get_class_reference ($1);
3178 { objc_receiver_context = 1; }
3180 { objc_receiver_context = 0; }
3183 $$ = build_tree_list ($3, $5);
3194 | keywordnamelist keywordname
3196 $$ = chainon ($1, $2);
3203 $$ = build_tree_list ($1, NULL_TREE);
3207 $$ = build_tree_list (NULL_TREE, NULL_TREE);
3212 SELECTOR '(' selectorarg ')'
3219 PROTOCOL '(' identifier ')'
3225 /* extension to support C-structures in the archiver */
3228 ENCODE '(' typename ')'
3230 $$ = groktypename ($3);
3237 /* yylex() is a thin wrapper around c_lex(), all it does is translate
3238 cpplib.h's token codes into yacc's token codes. */
3240 static enum cpp_ttype last_token;
3242 /* The reserved keyword table. */
3246 ENUM_BITFIELD(rid) rid : 16;
3247 unsigned int disable : 16;
3250 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
3252 #define D_TRAD 0x01 /* not in traditional C */
3253 #define D_C89 0x02 /* not in C89 */
3254 #define D_EXT 0x04 /* GCC extension */
3255 #define D_EXT89 0x08 /* GCC extension incorporated in C99 */
3256 #define D_OBJC 0x10 /* Objective C only */
3258 static const struct resword reswords[] =
3260 { "_Bool", RID_BOOL, 0 },
3261 { "_Complex", RID_COMPLEX, 0 },
3262 { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
3263 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
3264 { "__alignof", RID_ALIGNOF, 0 },
3265 { "__alignof__", RID_ALIGNOF, 0 },
3266 { "__asm", RID_ASM, 0 },
3267 { "__asm__", RID_ASM, 0 },
3268 { "__attribute", RID_ATTRIBUTE, 0 },
3269 { "__attribute__", RID_ATTRIBUTE, 0 },
3270 { "__bounded", RID_BOUNDED, 0 },
3271 { "__bounded__", RID_BOUNDED, 0 },
3272 { "__builtin_choose_expr", RID_CHOOSE_EXPR, 0 },
3273 { "__builtin_types_compatible_p", RID_TYPES_COMPATIBLE_P, 0 },
3274 { "__builtin_va_arg", RID_VA_ARG, 0 },
3275 { "__complex", RID_COMPLEX, 0 },
3276 { "__complex__", RID_COMPLEX, 0 },
3277 { "__const", RID_CONST, 0 },
3278 { "__const__", RID_CONST, 0 },
3279 { "__extension__", RID_EXTENSION, 0 },
3280 { "__func__", RID_C99_FUNCTION_NAME, 0 },
3281 { "__imag", RID_IMAGPART, 0 },
3282 { "__imag__", RID_IMAGPART, 0 },
3283 { "__inline", RID_INLINE, 0 },
3284 { "__inline__", RID_INLINE, 0 },
3285 { "__label__", RID_LABEL, 0 },
3286 { "__ptrbase", RID_PTRBASE, 0 },
3287 { "__ptrbase__", RID_PTRBASE, 0 },
3288 { "__ptrextent", RID_PTREXTENT, 0 },
3289 { "__ptrextent__", RID_PTREXTENT, 0 },
3290 { "__ptrvalue", RID_PTRVALUE, 0 },
3291 { "__ptrvalue__", RID_PTRVALUE, 0 },
3292 { "__real", RID_REALPART, 0 },
3293 { "__real__", RID_REALPART, 0 },
3294 { "__restrict", RID_RESTRICT, 0 },
3295 { "__restrict__", RID_RESTRICT, 0 },
3296 { "__signed", RID_SIGNED, 0 },
3297 { "__signed__", RID_SIGNED, 0 },
3298 { "__typeof", RID_TYPEOF, 0 },
3299 { "__typeof__", RID_TYPEOF, 0 },
3300 { "__unbounded", RID_UNBOUNDED, 0 },
3301 { "__unbounded__", RID_UNBOUNDED, 0 },
3302 { "__volatile", RID_VOLATILE, 0 },
3303 { "__volatile__", RID_VOLATILE, 0 },
3304 { "asm", RID_ASM, D_EXT },
3305 { "auto", RID_AUTO, 0 },
3306 { "break", RID_BREAK, 0 },
3307 { "case", RID_CASE, 0 },
3308 { "char", RID_CHAR, 0 },
3309 { "const", RID_CONST, D_TRAD },
3310 { "continue", RID_CONTINUE, 0 },
3311 { "default", RID_DEFAULT, 0 },
3312 { "do", RID_DO, 0 },
3313 { "double", RID_DOUBLE, 0 },
3314 { "else", RID_ELSE, 0 },
3315 { "enum", RID_ENUM, 0 },
3316 { "extern", RID_EXTERN, 0 },
3317 { "float", RID_FLOAT, 0 },
3318 { "for", RID_FOR, 0 },
3319 { "goto", RID_GOTO, 0 },
3320 { "if", RID_IF, 0 },
3321 { "inline", RID_INLINE, D_TRAD|D_EXT89 },
3322 { "int", RID_INT, 0 },
3323 { "long", RID_LONG, 0 },
3324 { "register", RID_REGISTER, 0 },
3325 { "restrict", RID_RESTRICT, D_TRAD|D_C89 },
3326 { "return", RID_RETURN, 0 },
3327 { "short", RID_SHORT, 0 },
3328 { "signed", RID_SIGNED, D_TRAD },
3329 { "sizeof", RID_SIZEOF, 0 },
3330 { "static", RID_STATIC, 0 },
3331 { "struct", RID_STRUCT, 0 },
3332 { "switch", RID_SWITCH, 0 },
3333 { "typedef", RID_TYPEDEF, 0 },
3334 { "typeof", RID_TYPEOF, D_TRAD|D_EXT },
3335 { "union", RID_UNION, 0 },
3336 { "unsigned", RID_UNSIGNED, 0 },
3337 { "void", RID_VOID, 0 },
3338 { "volatile", RID_VOLATILE, D_TRAD },
3339 { "while", RID_WHILE, 0 },
3341 { "id", RID_ID, D_OBJC },
3343 /* These objc keywords are recognized only immediately after
3345 { "class", RID_AT_CLASS, D_OBJC },
3346 { "compatibility_alias", RID_AT_ALIAS, D_OBJC },
3347 { "defs", RID_AT_DEFS, D_OBJC },
3348 { "encode", RID_AT_ENCODE, D_OBJC },
3349 { "end", RID_AT_END, D_OBJC },
3350 { "implementation", RID_AT_IMPLEMENTATION, D_OBJC },
3351 { "interface", RID_AT_INTERFACE, D_OBJC },
3352 { "private", RID_AT_PRIVATE, D_OBJC },
3353 { "protected", RID_AT_PROTECTED, D_OBJC },
3354 { "protocol", RID_AT_PROTOCOL, D_OBJC },
3355 { "public", RID_AT_PUBLIC, D_OBJC },
3356 { "selector", RID_AT_SELECTOR, D_OBJC },
3358 /* These are recognized only in protocol-qualifier context
3360 { "bycopy", RID_BYCOPY, D_OBJC },
3361 { "byref", RID_BYREF, D_OBJC },
3362 { "in", RID_IN, D_OBJC },
3363 { "inout", RID_INOUT, D_OBJC },
3364 { "oneway", RID_ONEWAY, D_OBJC },
3365 { "out", RID_OUT, D_OBJC },
3368 #define N_reswords (sizeof reswords / sizeof (struct resword))
3370 /* Table mapping from RID_* constants to yacc token numbers.
3371 Unfortunately we have to have entries for all the keywords in all
3373 static const short rid_to_yy[RID_MAX] =
3375 /* RID_STATIC */ SCSPEC,
3376 /* RID_UNSIGNED */ TYPESPEC,
3377 /* RID_LONG */ TYPESPEC,
3378 /* RID_CONST */ TYPE_QUAL,
3379 /* RID_EXTERN */ SCSPEC,
3380 /* RID_REGISTER */ SCSPEC,
3381 /* RID_TYPEDEF */ SCSPEC,
3382 /* RID_SHORT */ TYPESPEC,
3383 /* RID_INLINE */ SCSPEC,
3384 /* RID_VOLATILE */ TYPE_QUAL,
3385 /* RID_SIGNED */ TYPESPEC,
3386 /* RID_AUTO */ SCSPEC,
3387 /* RID_RESTRICT */ TYPE_QUAL,
3390 /* RID_BOUNDED */ TYPE_QUAL,
3391 /* RID_UNBOUNDED */ TYPE_QUAL,
3392 /* RID_COMPLEX */ TYPESPEC,
3396 /* RID_VIRTUAL */ 0,
3397 /* RID_EXPLICIT */ 0,
3399 /* RID_MUTABLE */ 0,
3402 /* RID_IN */ TYPE_QUAL,
3403 /* RID_OUT */ TYPE_QUAL,
3404 /* RID_INOUT */ TYPE_QUAL,
3405 /* RID_BYCOPY */ TYPE_QUAL,
3406 /* RID_BYREF */ TYPE_QUAL,
3407 /* RID_ONEWAY */ TYPE_QUAL,
3410 /* RID_INT */ TYPESPEC,
3411 /* RID_CHAR */ TYPESPEC,
3412 /* RID_FLOAT */ TYPESPEC,
3413 /* RID_DOUBLE */ TYPESPEC,
3414 /* RID_VOID */ TYPESPEC,
3415 /* RID_ENUM */ ENUM,
3416 /* RID_STRUCT */ STRUCT,
3417 /* RID_UNION */ UNION,
3419 /* RID_ELSE */ ELSE,
3420 /* RID_WHILE */ WHILE,
3423 /* RID_SWITCH */ SWITCH,
3424 /* RID_CASE */ CASE,
3425 /* RID_DEFAULT */ DEFAULT,
3426 /* RID_BREAK */ BREAK,
3427 /* RID_CONTINUE */ CONTINUE,
3428 /* RID_RETURN */ RETURN,
3429 /* RID_GOTO */ GOTO,
3430 /* RID_SIZEOF */ SIZEOF,
3433 /* RID_ASM */ ASM_KEYWORD,
3434 /* RID_TYPEOF */ TYPEOF,
3435 /* RID_ALIGNOF */ ALIGNOF,
3436 /* RID_ATTRIBUTE */ ATTRIBUTE,
3437 /* RID_VA_ARG */ VA_ARG,
3438 /* RID_EXTENSION */ EXTENSION,
3439 /* RID_IMAGPART */ IMAGPART,
3440 /* RID_REALPART */ REALPART,
3441 /* RID_LABEL */ LABEL,
3442 /* RID_PTRBASE */ PTR_BASE,
3443 /* RID_PTREXTENT */ PTR_EXTENT,
3444 /* RID_PTRVALUE */ PTR_VALUE,
3446 /* RID_CHOOSE_EXPR */ CHOOSE_EXPR,
3447 /* RID_TYPES_COMPATIBLE_P */ TYPES_COMPATIBLE_P,
3449 /* RID_FUNCTION_NAME */ STRING_FUNC_NAME,
3450 /* RID_PRETTY_FUNCTION_NAME */ STRING_FUNC_NAME,
3451 /* RID_C99_FUNCTION_NAME */ VAR_FUNC_NAME,
3454 /* RID_BOOL */ TYPESPEC,
3458 /* RID_PRIVATE */ 0,
3459 /* RID_PROTECTED */ 0,
3460 /* RID_TEMPLATE */ 0,
3465 /* RID_NAMESPACE */ 0,
3467 /* RID_OPERATOR */ 0,
3472 /* RID_TYPENAME */ 0,
3477 /* RID_CONSTCAST */ 0,
3478 /* RID_DYNCAST */ 0,
3479 /* RID_REINTCAST */ 0,
3480 /* RID_STATCAST */ 0,
3482 /* alternate spellings */
3496 /* RID_ID */ OBJECTNAME,
3497 /* RID_AT_ENCODE */ ENCODE,
3498 /* RID_AT_END */ END,
3499 /* RID_AT_CLASS */ CLASS,
3500 /* RID_AT_ALIAS */ ALIAS,
3501 /* RID_AT_DEFS */ DEFS,
3502 /* RID_AT_PRIVATE */ PRIVATE,
3503 /* RID_AT_PROTECTED */ PROTECTED,
3504 /* RID_AT_PUBLIC */ PUBLIC,
3505 /* RID_AT_PROTOCOL */ PROTOCOL,
3506 /* RID_AT_SELECTOR */ SELECTOR,
3507 /* RID_AT_INTERFACE */ INTERFACE,
3508 /* RID_AT_IMPLEMENTATION */ IMPLEMENTATION
3516 int mask = (flag_isoc99 ? 0 : D_C89)
3517 | (flag_traditional ? D_TRAD : 0)
3518 | (flag_no_asm ? (flag_isoc99 ? D_EXT : D_EXT|D_EXT89) : 0);
3520 if (c_language != clk_objective_c)
3523 /* It is not necessary to register ridpointers as a GC root, because
3524 all the trees it points to are permanently interned in the
3525 get_identifier hash anyway. */
3526 ridpointers = (tree *) xcalloc ((int) RID_MAX, sizeof (tree));
3527 for (i = 0; i < N_reswords; i++)
3529 /* If a keyword is disabled, do not enter it into the table
3530 and so create a canonical spelling that isn't a keyword. */
3531 if (reswords[i].disable & mask)
3534 id = get_identifier (reswords[i].word);
3535 C_RID_CODE (id) = reswords[i].rid;
3536 C_IS_RESERVED_WORD (id) = 1;
3537 ridpointers [(int) reswords[i].rid] = id;
3541 #define NAME(type) cpp_type2name (type)
3547 const char *string = _(msgid);
3549 if (last_token == CPP_EOF)
3550 error ("%s at end of input", string);
3551 else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
3553 unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
3554 const char *const ell = (last_token == CPP_CHAR) ? "" : "L";
3555 if (val <= UCHAR_MAX && ISGRAPH (val))
3556 error ("%s before %s'%c'", string, ell, val);
3558 error ("%s before %s'\\x%x'", string, ell, val);
3560 else if (last_token == CPP_STRING
3561 || last_token == CPP_WSTRING)
3562 error ("%s before string constant", string);
3563 else if (last_token == CPP_NUMBER)
3564 error ("%s before numeric constant", string);
3565 else if (last_token == CPP_NAME)
3566 error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
3568 error ("%s before '%s' token", string, NAME(last_token));
3577 int objc_force_identifier = objc_need_raw_identifier;
3578 OBJC_NEED_RAW_IDENTIFIER (0);
3581 if (C_IS_RESERVED_WORD (yylval.ttype))
3583 enum rid rid_code = C_RID_CODE (yylval.ttype);
3586 /* Turn non-typedefed refs to "id" into plain identifiers; this
3587 allows constructs like "void foo(id id);" to work. */
3588 if (rid_code == RID_ID)
3590 decl = lookup_name (yylval.ttype);
3591 if (decl == NULL_TREE || TREE_CODE (decl) != TYPE_DECL)
3595 if (!OBJC_IS_AT_KEYWORD (rid_code)
3596 && (!OBJC_IS_PQ_KEYWORD (rid_code) || objc_pq_context))
3599 int yycode = rid_to_yy[(int) rid_code];
3600 if (yycode == STRING_FUNC_NAME)
3602 /* __FUNCTION__ and __PRETTY_FUNCTION__ get converted
3603 to string constants. */
3604 const char *name = fname_string (rid_code);
3606 yylval.ttype = build_string (strlen (name) + 1, name);
3607 last_token = CPP_STRING; /* so yyerror won't choke */
3611 /* Return the canonical spelling for this keyword. */
3612 yylval.ttype = ridpointers[(int) rid_code];
3617 decl = lookup_name (yylval.ttype);
3620 if (TREE_CODE (decl) == TYPE_DECL)
3626 tree objc_interface_decl = is_class_name (yylval.ttype);
3627 /* ObjC class names are in the same namespace as variables and
3628 typedefs, and hence are shadowed by local declarations. */
3629 if (objc_interface_decl
3630 && (global_bindings_p ()
3631 || (!objc_force_identifier && !decl)))
3633 yylval.ttype = objc_interface_decl;
3647 last_token = c_lex (&yylval.ttype);
3650 case CPP_EQ: return '=';
3651 case CPP_NOT: return '!';
3652 case CPP_GREATER: yylval.code = GT_EXPR; return ARITHCOMPARE;
3653 case CPP_LESS: yylval.code = LT_EXPR; return ARITHCOMPARE;
3654 case CPP_PLUS: yylval.code = PLUS_EXPR; return '+';
3655 case CPP_MINUS: yylval.code = MINUS_EXPR; return '-';
3656 case CPP_MULT: yylval.code = MULT_EXPR; return '*';
3657 case CPP_DIV: yylval.code = TRUNC_DIV_EXPR; return '/';
3658 case CPP_MOD: yylval.code = TRUNC_MOD_EXPR; return '%';
3659 case CPP_AND: yylval.code = BIT_AND_EXPR; return '&';
3660 case CPP_OR: yylval.code = BIT_IOR_EXPR; return '|';
3661 case CPP_XOR: yylval.code = BIT_XOR_EXPR; return '^';
3662 case CPP_RSHIFT: yylval.code = RSHIFT_EXPR; return RSHIFT;
3663 case CPP_LSHIFT: yylval.code = LSHIFT_EXPR; return LSHIFT;
3665 case CPP_COMPL: return '~';
3666 case CPP_AND_AND: return ANDAND;
3667 case CPP_OR_OR: return OROR;
3668 case CPP_QUERY: return '?';
3669 case CPP_OPEN_PAREN: return '(';
3670 case CPP_EQ_EQ: yylval.code = EQ_EXPR; return EQCOMPARE;
3671 case CPP_NOT_EQ: yylval.code = NE_EXPR; return EQCOMPARE;
3672 case CPP_GREATER_EQ:yylval.code = GE_EXPR; return ARITHCOMPARE;
3673 case CPP_LESS_EQ: yylval.code = LE_EXPR; return ARITHCOMPARE;
3675 case CPP_PLUS_EQ: yylval.code = PLUS_EXPR; return ASSIGN;
3676 case CPP_MINUS_EQ: yylval.code = MINUS_EXPR; return ASSIGN;
3677 case CPP_MULT_EQ: yylval.code = MULT_EXPR; return ASSIGN;
3678 case CPP_DIV_EQ: yylval.code = TRUNC_DIV_EXPR; return ASSIGN;
3679 case CPP_MOD_EQ: yylval.code = TRUNC_MOD_EXPR; return ASSIGN;
3680 case CPP_AND_EQ: yylval.code = BIT_AND_EXPR; return ASSIGN;
3681 case CPP_OR_EQ: yylval.code = BIT_IOR_EXPR; return ASSIGN;
3682 case CPP_XOR_EQ: yylval.code = BIT_XOR_EXPR; return ASSIGN;
3683 case CPP_RSHIFT_EQ: yylval.code = RSHIFT_EXPR; return ASSIGN;
3684 case CPP_LSHIFT_EQ: yylval.code = LSHIFT_EXPR; return ASSIGN;
3686 case CPP_OPEN_SQUARE: return '[';
3687 case CPP_CLOSE_SQUARE: return ']';
3688 case CPP_OPEN_BRACE: return '{';
3689 case CPP_CLOSE_BRACE: return '}';
3690 case CPP_ELLIPSIS: return ELLIPSIS;
3692 case CPP_PLUS_PLUS: return PLUSPLUS;
3693 case CPP_MINUS_MINUS: return MINUSMINUS;
3694 case CPP_DEREF: return POINTSAT;
3695 case CPP_DOT: return '.';
3697 /* The following tokens may affect the interpretation of any
3698 identifiers following, if doing Objective-C. */
3699 case CPP_COLON: OBJC_NEED_RAW_IDENTIFIER (0); return ':';
3700 case CPP_COMMA: OBJC_NEED_RAW_IDENTIFIER (0); return ',';
3701 case CPP_CLOSE_PAREN: OBJC_NEED_RAW_IDENTIFIER (0); return ')';
3702 case CPP_SEMICOLON: OBJC_NEED_RAW_IDENTIFIER (0); return ';';
3708 return yylexname ();
3719 /* This token is Objective-C specific. It gives the next token
3720 special significance. */
3725 enum cpp_ttype after_at_type;
3727 after_at_type = c_lex (&after_at);
3729 if (after_at_type == CPP_NAME
3730 && C_IS_RESERVED_WORD (after_at)
3731 && OBJC_IS_AT_KEYWORD (C_RID_CODE (after_at)))
3733 yylval.ttype = after_at;
3734 last_token = after_at_type;
3735 return rid_to_yy [(int) C_RID_CODE (after_at)];
3737 _cpp_backup_tokens (parse_in, 1);
3742 /* These tokens are C++ specific (and will not be generated
3743 in C mode, but let's be cautious). */
3745 case CPP_DEREF_STAR:
3751 /* These tokens should not survive translation phase 4. */
3754 error ("syntax error at '%s' token", NAME(last_token));
3767 timevar_push (TV_LEX);
3769 timevar_pop (TV_LEX);
3773 /* Sets the value of the 'yydebug' variable to VALUE.
3774 This is a function so we don't have to have YYDEBUG defined
3775 in order to build the compiler. */
3778 c_set_yydebug (value)
3784 warning ("YYDEBUG not defined");
3788 /* Function used when yydebug is set, to print a token in more detail. */
3791 yyprint (file, yychar, yyl)
3798 fprintf (file, " [%s]", NAME(last_token));
3808 if (IDENTIFIER_POINTER (t))
3809 fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
3813 fprintf (file, " %s", GET_MODE_NAME (TYPE_MODE (TREE_TYPE (t))));
3814 if (TREE_CODE (t) == INTEGER_CST)
3816 #if HOST_BITS_PER_WIDE_INT == 64
3817 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
3820 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
3827 #if HOST_BITS_PER_WIDE_INT != HOST_BITS_PER_INT
3833 TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
3838 /* This is not the ideal place to put these, but we have to get them out
3839 of c-lex.c because cp/lex.c has its own versions. */
3841 /* Return something to represent absolute declarators containing a *.
3842 TARGET is the absolute declarator that the * contains.
3843 TYPE_QUALS_ATTRS is a list of modifiers such as const or volatile
3844 to apply to the pointer type, represented as identifiers, possible mixed
3847 We return an INDIRECT_REF whose "contents" are TARGET (inside a TREE_LIST,
3848 if attributes are present) and whose type is the modifier list. */
3851 make_pointer_declarator (type_quals_attrs, target)
3852 tree type_quals_attrs, target;
3855 tree itarget = target;
3856 split_specs_attrs (type_quals_attrs, &quals, &attrs);
3857 if (attrs != NULL_TREE)
3858 itarget = tree_cons (attrs, target, NULL_TREE);
3859 return build1 (INDIRECT_REF, quals, itarget);