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. */
71 %union {long itype; tree ttype; enum tree_code code;
72 const char *filename; int lineno; }
74 /* All identifiers that are not reserved words
75 and are not declared typedefs in the current block */
78 /* All identifiers that are declared typedefs in the current block.
79 In some contexts, they are treated just like IDENTIFIER,
80 but they can also serve as typespecs in declarations. */
83 /* Reserved words that specify storage class.
84 yylval contains an IDENTIFIER_NODE which indicates which one. */
85 %token SCSPEC /* Storage class other than static. */
86 %token STATIC /* Static storage class. */
88 /* Reserved words that specify type.
89 yylval contains an IDENTIFIER_NODE which indicates which one. */
92 /* Reserved words that qualify type: "const", "volatile", or "restrict".
93 yylval contains an IDENTIFIER_NODE which indicates which one. */
96 /* Character or numeric constants.
97 yylval is the node for the constant. */
100 /* String constants in raw form.
101 yylval is a STRING_CST node. */
104 /* "...", used for functions with variable arglists. */
107 /* the reserved words */
108 /* SCO include files test "ASM", so use something else. */
109 %token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
110 %token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
111 %token ATTRIBUTE EXTENSION LABEL
112 %token REALPART IMAGPART VA_ARG CHOOSE_EXPR TYPES_COMPATIBLE_P
113 %token PTR_VALUE PTR_BASE PTR_EXTENT
115 /* function name can be a string const or a var decl. */
116 %token STRING_FUNC_NAME VAR_FUNC_NAME
118 /* Add precedence rules to solve dangling else s/r conflict */
122 /* Define the operator tokens and their precedences.
123 The value is an integer because, if used, it is the tree code
124 to use in the expression made from the operator. */
126 %right <code> ASSIGN '='
127 %right <code> '?' ':'
133 %left <code> EQCOMPARE
134 %left <code> ARITHCOMPARE
135 %left <code> LSHIFT RSHIFT
137 %left <code> '*' '/' '%'
138 %right <code> UNARY PLUSPLUS MINUSMINUS
140 %left <code> POINTSAT '.' '(' '['
142 /* The Objective-C keywords. These are included in C and in
143 Objective C, so that the token codes are the same in both. */
144 %token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
145 %token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
148 %type <ttype> ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
149 %type <ttype> BREAK CONTINUE RETURN GOTO ASM_KEYWORD SIZEOF TYPEOF ALIGNOF
151 %type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
152 %type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
153 %type <ttype> declspecs_nosc_nots_nosa_noea declspecs_nosc_nots_nosa_ea
154 %type <ttype> declspecs_nosc_nots_sa_noea declspecs_nosc_nots_sa_ea
155 %type <ttype> declspecs_nosc_ts_nosa_noea declspecs_nosc_ts_nosa_ea
156 %type <ttype> declspecs_nosc_ts_sa_noea declspecs_nosc_ts_sa_ea
157 %type <ttype> declspecs_sc_nots_nosa_noea declspecs_sc_nots_nosa_ea
158 %type <ttype> declspecs_sc_nots_sa_noea declspecs_sc_nots_sa_ea
159 %type <ttype> declspecs_sc_ts_nosa_noea declspecs_sc_ts_nosa_ea
160 %type <ttype> declspecs_sc_ts_sa_noea declspecs_sc_ts_sa_ea
161 %type <ttype> declspecs_ts declspecs_nots
162 %type <ttype> declspecs_ts_nosa declspecs_nots_nosa
163 %type <ttype> declspecs_nosc_ts declspecs_nosc_nots declspecs_nosc declspecs
164 %type <ttype> maybe_type_quals_attrs typespec_nonattr typespec_attr
165 %type <ttype> typespec_reserved_nonattr typespec_reserved_attr
166 %type <ttype> typespec_nonreserved_nonattr
168 %type <ttype> scspec SCSPEC STATIC TYPESPEC TYPE_QUAL maybe_type_qual
169 %type <ttype> initdecls notype_initdecls initdcl notype_initdcl
170 %type <ttype> init maybeasm
171 %type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
172 %type <ttype> maybe_attribute attributes attribute attribute_list attrib
173 %type <ttype> any_word extension
175 %type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
176 %type <ttype> do_stmt_start poplevel stmt label
178 %type <ttype> c99_block_start c99_block_end
179 %type <ttype> declarator
180 %type <ttype> notype_declarator after_type_declarator
181 %type <ttype> parm_declarator
182 %type <ttype> parm_declarator_starttypename parm_declarator_nostarttypename
183 %type <ttype> array_declarator
185 %type <ttype> structsp_attr structsp_nonattr
186 %type <ttype> component_decl_list component_decl_list2
187 %type <ttype> component_decl components components_notype component_declarator
188 %type <ttype> component_notype_declarator
189 %type <ttype> enumlist enumerator
190 %type <ttype> struct_head union_head enum_head
191 %type <ttype> typename absdcl absdcl1 absdcl1_ea absdcl1_noea
192 %type <ttype> direct_absdcl1 absdcl_maybe_attribute
193 %type <ttype> xexpr parms parm firstparm identifiers
195 %type <ttype> parmlist parmlist_1 parmlist_2
196 %type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
197 %type <ttype> identifiers_or_typenames
199 %type <itype> setspecs setspecs_fp
201 %type <filename> save_filename
202 %type <lineno> save_lineno
205 /* the Objective-C nonterminals */
207 %type <ttype> ivar_decl_list ivar_decls ivar_decl ivars ivar_declarator
208 %type <ttype> methoddecl unaryselector keywordselector selector
209 %type <ttype> keyworddecl receiver objcmessageexpr messageargs
210 %type <ttype> keywordexpr keywordarglist keywordarg
211 %type <ttype> myparms myparm optparmlist reservedwords objcselectorexpr
212 %type <ttype> selectorarg keywordnamelist keywordname objcencodeexpr
213 %type <ttype> objc_string non_empty_protocolrefs protocolrefs identifier_list objcprotocolexpr
215 %type <ttype> CLASSNAME OBJECTNAME
219 /* Number of statements (loosely speaking) and compound statements
221 static int stmt_count;
222 static int compstmt_count;
224 /* Input file and line number of the end of the body of last simple_if;
225 used by the stmt-rule immediately after simple_if returns. */
226 static const char *if_stmt_file;
227 static int if_stmt_line;
229 /* List of types and structure classes of the current declaration. */
230 static tree current_declspecs = NULL_TREE;
231 static tree prefix_attributes = NULL_TREE;
233 /* List of all the attributes applying to the identifier currently being
234 declared; includes prefix_attributes and possibly some more attributes
235 just after a comma. */
236 static tree all_prefix_attributes = NULL_TREE;
238 /* Stack of saved values of current_declspecs, prefix_attributes and
239 all_prefix_attributes. */
240 static tree declspec_stack;
242 /* PUSH_DECLSPEC_STACK is called from setspecs; POP_DECLSPEC_STACK
243 should be called from the productions making use of setspecs. */
244 #define PUSH_DECLSPEC_STACK \
246 declspec_stack = tree_cons (build_tree_list (prefix_attributes, \
247 all_prefix_attributes), \
252 #define POP_DECLSPEC_STACK \
254 current_declspecs = TREE_VALUE (declspec_stack); \
255 prefix_attributes = TREE_PURPOSE (TREE_PURPOSE (declspec_stack)); \
256 all_prefix_attributes = TREE_VALUE (TREE_PURPOSE (declspec_stack)); \
257 declspec_stack = TREE_CHAIN (declspec_stack); \
260 /* For __extension__, save/restore the warning flags which are
261 controlled by __extension__. */
262 #define SAVE_WARN_FLAGS() \
264 | (warn_pointer_arith << 1) \
265 | (warn_traditional << 2))
267 #define RESTORE_WARN_FLAGS(tval) \
269 int val = tree_low_cst (tval, 0); \
270 pedantic = val & 1; \
271 warn_pointer_arith = (val >> 1) & 1; \
272 warn_traditional = (val >> 2) & 1; \
276 /* Objective-C specific parser/lexer information */
278 static enum tree_code objc_inherit_code;
279 static int objc_pq_context = 0, objc_public_flag = 0;
281 /* The following flag is needed to contextualize ObjC lexical analysis.
282 In some cases (e.g., 'int NSObject;'), it is undesirable to bind
283 an identifier to an ObjC class, even if a class with that name
285 static int objc_need_raw_identifier;
286 #define OBJC_NEED_RAW_IDENTIFIER(VAL) objc_need_raw_identifier = VAL
290 #define OBJC_NEED_RAW_IDENTIFIER(VAL) /* nothing */
293 /* Tell yyparse how to print a token's value, if yydebug is set. */
295 #define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
297 static void yyprint PARAMS ((FILE *, int, YYSTYPE));
298 static void yyerror PARAMS ((const char *));
299 static int yylexname PARAMS ((void));
300 static inline int _yylex PARAMS ((void));
301 static int yylex PARAMS ((void));
302 static void init_reswords PARAMS ((void));
304 /* Add GC roots for variables local to this file. */
310 ggc_add_tree_root (&declspec_stack, 1);
311 ggc_add_tree_root (¤t_declspecs, 1);
312 ggc_add_tree_root (&prefix_attributes, 1);
313 ggc_add_tree_root (&all_prefix_attributes, 1);
321 pedwarn ("ISO C forbids an empty source file");
326 /* In case there were missing closebraces,
327 get us back to the global binding level. */
328 while (! global_bindings_p ())
330 /* __FUNCTION__ is defined at file scope (""). This
331 call may not be necessary as my tests indicate it
332 still works without it. */
333 finish_fname_decls ();
338 /* the reason for the strange actions in this rule
339 is so that notype_initdecls when reached via datadef
340 can find a valid list of type and sc specs in $0. */
343 {$<ttype>$ = NULL_TREE; } extdef
344 | extdefs {$<ttype>$ = NULL_TREE; ggc_collect(); } extdef
353 | ASM_KEYWORD '(' expr ')' ';'
355 if ((TREE_CODE ($3) == ADDR_EXPR
356 && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
357 || TREE_CODE ($3) == STRING_CST)
360 error ("argument of `asm' is not a constant string"); }
362 { RESTORE_WARN_FLAGS ($1); }
366 setspecs notype_initdecls ';'
368 error ("ISO C forbids data definition with no type or storage class");
370 warning ("data definition has no type or storage class");
372 POP_DECLSPEC_STACK; }
373 | declspecs_nots setspecs notype_initdecls ';'
374 { POP_DECLSPEC_STACK; }
375 | declspecs_ts setspecs initdecls ';'
376 { POP_DECLSPEC_STACK; }
383 pedwarn ("ISO C does not allow extra `;' outside of a function"); }
387 declspecs_ts setspecs declarator
388 { if (! start_function (current_declspecs, $3,
389 all_prefix_attributes))
393 { store_parm_decls (); }
394 save_filename save_lineno compstmt_or_error
395 { DECL_SOURCE_FILE (current_function_decl) = $7;
396 DECL_SOURCE_LINE (current_function_decl) = $8;
397 finish_function (0, 1);
398 POP_DECLSPEC_STACK; }
399 | declspecs_ts setspecs declarator error
400 { POP_DECLSPEC_STACK; }
401 | declspecs_nots setspecs notype_declarator
402 { if (! start_function (current_declspecs, $3,
403 all_prefix_attributes))
407 { store_parm_decls (); }
408 save_filename save_lineno compstmt_or_error
409 { DECL_SOURCE_FILE (current_function_decl) = $7;
410 DECL_SOURCE_LINE (current_function_decl) = $8;
411 finish_function (0, 1);
412 POP_DECLSPEC_STACK; }
413 | declspecs_nots setspecs notype_declarator error
414 { POP_DECLSPEC_STACK; }
415 | setspecs notype_declarator
416 { if (! start_function (NULL_TREE, $2,
417 all_prefix_attributes))
421 { store_parm_decls (); }
422 save_filename save_lineno compstmt_or_error
423 { DECL_SOURCE_FILE (current_function_decl) = $6;
424 DECL_SOURCE_LINE (current_function_decl) = $7;
425 finish_function (0, 1);
426 POP_DECLSPEC_STACK; }
427 | setspecs notype_declarator error
428 { POP_DECLSPEC_STACK; }
443 { $$ = NEGATE_EXPR; }
447 if (warn_traditional && !in_system_header)
448 warning ("traditional C rejects the unary plus operator");
452 { $$ = PREINCREMENT_EXPR; }
454 { $$ = PREDECREMENT_EXPR; }
456 { $$ = BIT_NOT_EXPR; }
458 { $$ = TRUTH_NOT_EXPR; }
461 expr: nonnull_exprlist
462 { $$ = build_compound_expr ($1); }
473 { $$ = build_tree_list (NULL_TREE, $1); }
474 | nonnull_exprlist ',' expr_no_commas
475 { chainon ($1, build_tree_list (NULL_TREE, $3)); }
480 | '*' cast_expr %prec UNARY
481 { $$ = build_indirect_ref ($2, "unary *"); }
482 /* __extension__ turns off -pedantic for following primary. */
483 | extension cast_expr %prec UNARY
485 RESTORE_WARN_FLAGS ($1); }
486 | unop cast_expr %prec UNARY
487 { $$ = build_unary_op ($1, $2, 0);
488 overflow_warning ($$); }
489 /* Refer to the address of a label as a pointer. */
491 { $$ = finish_label_address_expr ($2); }
492 /* This seems to be impossible on some machines, so let's turn it off.
493 You can use __builtin_next_arg to find the anonymous stack args.
495 { tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
496 $$ = error_mark_node;
497 if (TREE_VALUE (tree_last (types)) == void_type_node)
498 error ("`&...' used in function with fixed number of arguments");
502 pedwarn ("ISO C forbids `&...'");
503 $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
504 $$ = build_unary_op (ADDR_EXPR, $$, 0);
507 | sizeof unary_expr %prec UNARY
509 if (TREE_CODE ($2) == COMPONENT_REF
510 && DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
511 error ("`sizeof' applied to a bit-field");
512 $$ = c_sizeof (TREE_TYPE ($2)); }
513 | sizeof '(' typename ')' %prec HYPERUNARY
515 $$ = c_sizeof (groktypename ($3)); }
516 | alignof unary_expr %prec UNARY
518 $$ = c_alignof_expr ($2); }
519 | alignof '(' typename ')' %prec HYPERUNARY
521 $$ = c_alignof (groktypename ($3)); }
522 | REALPART cast_expr %prec UNARY
523 { $$ = build_unary_op (REALPART_EXPR, $2, 0); }
524 | IMAGPART cast_expr %prec UNARY
525 { $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
529 SIZEOF { skip_evaluation++; }
533 ALIGNOF { skip_evaluation++; }
538 | '(' typename ')' cast_expr %prec UNARY
539 { $$ = c_cast_expr ($2, $4); }
544 | expr_no_commas '+' expr_no_commas
545 { $$ = parser_build_binary_op ($2, $1, $3); }
546 | expr_no_commas '-' expr_no_commas
547 { $$ = parser_build_binary_op ($2, $1, $3); }
548 | expr_no_commas '*' expr_no_commas
549 { $$ = parser_build_binary_op ($2, $1, $3); }
550 | expr_no_commas '/' expr_no_commas
551 { $$ = parser_build_binary_op ($2, $1, $3); }
552 | expr_no_commas '%' expr_no_commas
553 { $$ = parser_build_binary_op ($2, $1, $3); }
554 | expr_no_commas LSHIFT expr_no_commas
555 { $$ = parser_build_binary_op ($2, $1, $3); }
556 | expr_no_commas RSHIFT expr_no_commas
557 { $$ = parser_build_binary_op ($2, $1, $3); }
558 | expr_no_commas ARITHCOMPARE expr_no_commas
559 { $$ = parser_build_binary_op ($2, $1, $3); }
560 | expr_no_commas EQCOMPARE expr_no_commas
561 { $$ = parser_build_binary_op ($2, $1, $3); }
562 | expr_no_commas '&' expr_no_commas
563 { $$ = parser_build_binary_op ($2, $1, $3); }
564 | expr_no_commas '|' expr_no_commas
565 { $$ = parser_build_binary_op ($2, $1, $3); }
566 | expr_no_commas '^' expr_no_commas
567 { $$ = parser_build_binary_op ($2, $1, $3); }
568 | expr_no_commas ANDAND
569 { $1 = truthvalue_conversion (default_conversion ($1));
570 skip_evaluation += $1 == boolean_false_node; }
572 { skip_evaluation -= $1 == boolean_false_node;
573 $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
574 | expr_no_commas OROR
575 { $1 = truthvalue_conversion (default_conversion ($1));
576 skip_evaluation += $1 == boolean_true_node; }
578 { skip_evaluation -= $1 == boolean_true_node;
579 $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
581 { $1 = truthvalue_conversion (default_conversion ($1));
582 skip_evaluation += $1 == boolean_false_node; }
584 { skip_evaluation += (($1 == boolean_true_node)
585 - ($1 == boolean_false_node)); }
587 { skip_evaluation -= $1 == boolean_true_node;
588 $$ = build_conditional_expr ($1, $4, $7); }
591 pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
592 /* Make sure first operand is calculated only once. */
593 $<ttype>2 = save_expr ($1);
594 $1 = truthvalue_conversion (default_conversion ($<ttype>2));
595 skip_evaluation += $1 == boolean_true_node; }
597 { skip_evaluation -= $1 == boolean_true_node;
598 $$ = build_conditional_expr ($1, $<ttype>2, $5); }
599 | expr_no_commas '=' expr_no_commas
601 $$ = build_modify_expr ($1, NOP_EXPR, $3);
602 class = TREE_CODE_CLASS (TREE_CODE ($$));
603 if (IS_EXPR_CODE_CLASS (class))
604 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
606 | expr_no_commas ASSIGN expr_no_commas
608 $$ = build_modify_expr ($1, $2, $3);
609 /* This inhibits warnings in truthvalue_conversion. */
610 class = TREE_CODE_CLASS (TREE_CODE ($$));
611 if (IS_EXPR_CODE_CLASS (class))
612 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
619 if (yychar == YYEMPTY)
621 $$ = build_external_ref ($1, yychar == '(');
625 { $$ = combine_strings ($1); }
627 { $$ = fname_decl (C_RID_CODE ($$), $$); }
628 | '(' typename ')' '{'
629 { start_init (NULL_TREE, NULL, 0);
630 $2 = groktypename ($2);
631 really_start_incremental_init ($2); }
632 initlist_maybe_comma '}' %prec UNARY
633 { tree constructor = pop_init_level (0);
637 if (pedantic && ! flag_isoc99)
638 pedwarn ("ISO C89 forbids compound literals");
639 $$ = build_compound_literal (type, constructor);
642 { char class = TREE_CODE_CLASS (TREE_CODE ($2));
643 if (IS_EXPR_CODE_CLASS (class))
644 C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
647 { $$ = error_mark_node; }
648 | compstmt_primary_start compstmt_nostart ')'
649 { tree saved_last_tree;
652 pedwarn ("ISO C forbids braced-groups within expressions");
655 saved_last_tree = COMPOUND_BODY ($1);
656 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
657 last_tree = saved_last_tree;
658 TREE_CHAIN (last_tree) = NULL_TREE;
660 last_expr_type = void_type_node;
661 $$ = build1 (STMT_EXPR, last_expr_type, $1);
662 TREE_SIDE_EFFECTS ($$) = 1;
664 | compstmt_primary_start error ')'
667 last_tree = COMPOUND_BODY ($1);
668 TREE_CHAIN (last_tree) = NULL_TREE;
669 $$ = error_mark_node;
671 | primary '(' exprlist ')' %prec '.'
672 { $$ = build_function_call ($1, $3); }
673 | VA_ARG '(' expr_no_commas ',' typename ')'
674 { $$ = build_va_arg ($3, groktypename ($5)); }
676 | CHOOSE_EXPR '(' expr_no_commas ',' expr_no_commas ',' expr_no_commas ')'
682 if (TREE_CODE (c) != INTEGER_CST)
683 error ("first argument to __builtin_choose_expr not a constant");
684 $$ = integer_zerop (c) ? $7 : $5;
686 | TYPES_COMPATIBLE_P '(' typename ',' typename ')'
690 e1 = TYPE_MAIN_VARIANT (groktypename ($3));
691 e2 = TYPE_MAIN_VARIANT (groktypename ($5));
693 $$ = comptypes (e1, e2)
694 ? build_int_2 (1, 0) : build_int_2 (0, 0);
696 | primary '[' expr ']' %prec '.'
697 { $$ = build_array_ref ($1, $3); }
698 | primary '.' identifier
701 if (!is_public ($1, $3))
702 $$ = error_mark_node;
705 $$ = build_component_ref ($1, $3);
707 | primary POINTSAT identifier
709 tree expr = build_indirect_ref ($1, "->");
712 if (!is_public (expr, $3))
713 $$ = error_mark_node;
716 $$ = build_component_ref (expr, $3);
719 { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
721 { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
724 { $$ = build_message_expr ($1); }
726 { $$ = build_selector_expr ($1); }
728 { $$ = build_protocol_expr ($1); }
730 { $$ = build_encode_expr ($1); }
732 { $$ = build_objc_string_object ($1); }
736 /* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
742 static int last_lineno = 0;
743 static const char *last_input_filename = 0;
745 $$ = chainon ($1, $2);
747 if (warn_traditional && !in_system_header
748 && (lineno != last_lineno || !last_input_filename ||
749 strcmp (last_input_filename, input_filename)))
751 warning ("traditional C rejects string concatenation");
752 last_lineno = lineno;
753 last_input_filename = input_filename;
760 /* Produces an STRING_CST with perhaps more STRING_CSTs chained
761 onto it, which is to be read as an ObjC string object. */
765 | objc_string '@' STRING
766 { $$ = chainon ($1, $3); }
770 old_style_parm_decls:
774 /* ... is used here to indicate a varargs function. */
777 pedwarn ("ISO C does not permit use of `varargs.h'"); }
780 /* The following are analogous to lineno_decl, decls and decl
781 except that they do not allow nested functions.
782 They are used for old-style parm decls. */
784 save_filename save_lineno datadecl
791 | datadecls lineno_datadecl
792 | lineno_datadecl errstmt
795 /* We don't allow prefix attributes here because they cause reduce/reduce
796 conflicts: we can't know whether we're parsing a function decl with
797 attribute suffix, or function defn with attribute prefix on first old
800 declspecs_ts_nosa setspecs initdecls ';'
801 { POP_DECLSPEC_STACK; }
802 | declspecs_nots_nosa setspecs notype_initdecls ';'
803 { POP_DECLSPEC_STACK; }
804 | declspecs_ts_nosa ';'
805 { shadow_tag_warned ($1, 1);
806 pedwarn ("empty declaration"); }
807 | declspecs_nots_nosa ';'
808 { pedwarn ("empty declaration"); }
811 /* This combination which saves a lineno before a decl
812 is the normal thing to use, rather than decl itself.
813 This is to avoid shift/reduce conflicts in contexts
814 where statement labels are allowed. */
816 save_filename save_lineno decl
820 /* records the type and storage class specs to use for processing
821 the declarators that follow.
822 Maintains a stack of outer-level values of current_declspecs,
823 for the sake of parm declarations nested in function declarators. */
824 setspecs: /* empty */
825 { pending_xref_error ();
827 split_specs_attrs ($<ttype>0,
828 ¤t_declspecs, &prefix_attributes);
829 all_prefix_attributes = prefix_attributes; }
832 /* Possibly attributes after a comma, which should reset all_prefix_attributes
833 to prefix_attributes with these ones chained on the front. */
836 { all_prefix_attributes = chainon ($1, prefix_attributes); }
840 declspecs_ts setspecs initdecls ';'
841 { POP_DECLSPEC_STACK; }
842 | declspecs_nots setspecs notype_initdecls ';'
843 { POP_DECLSPEC_STACK; }
844 | declspecs_ts setspecs nested_function
845 { POP_DECLSPEC_STACK; }
846 | declspecs_nots setspecs notype_nested_function
847 { POP_DECLSPEC_STACK; }
851 { RESTORE_WARN_FLAGS ($1); }
854 /* A list of declaration specifiers. These are:
856 - Storage class specifiers (scspec), which for GCC currently includes
857 function specifiers ("inline").
859 - Type specifiers (typespec_*).
861 - Type qualifiers (TYPE_QUAL).
863 - Attribute specifier lists (attributes).
865 These are stored as a TREE_LIST; the head of the list is the last
866 item in the specifier list. Each entry in the list has either a
867 TREE_PURPOSE that is an attribute specifier list, or a TREE_VALUE that
868 is a single other specifier or qualifier; and a TREE_CHAIN that is the
869 rest of the list. TREE_STATIC is set on the list if something other
870 than a storage class specifier or attribute has been seen; this is used
871 to warn for the obsolescent usage of storage class specifiers other than
872 at the start of the list. (Doing this properly would require function
873 specifiers to be handled separately from storage class specifiers.)
875 The various cases below are classified according to:
877 (a) Whether a storage class specifier is included or not; some
878 places in the grammar disallow storage class specifiers (_sc or _nosc).
880 (b) Whether a type specifier has been seen; after a type specifier,
881 a typedef name is an identifier to redeclare (_ts or _nots).
883 (c) Whether the list starts with an attribute; in certain places,
884 the grammar requires specifiers that don't start with an attribute
887 (d) Whether the list ends with an attribute (or a specifier such that
888 any following attribute would have been parsed as part of that specifier);
889 this avoids shift-reduce conflicts in the parsing of attributes
894 (i) Distinguish between function specifiers and storage class specifiers,
895 at least for the purpose of warnings about obsolescent usage.
897 (ii) Halve the number of productions here by eliminating the _sc/_nosc
898 distinction and instead checking where required that storage class
899 specifiers aren't present. */
901 /* Declspecs which contain at least one type specifier or typedef name.
902 (Just `const' or `volatile' is not enough.)
903 A typedef'd name following these is taken as a name to be declared.
904 Declspecs have a non-NULL TREE_VALUE, attributes do not. */
906 declspecs_nosc_nots_nosa_noea:
908 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
909 TREE_STATIC ($$) = 1; }
910 | declspecs_nosc_nots_nosa_noea TYPE_QUAL
911 { $$ = tree_cons (NULL_TREE, $2, $1);
912 TREE_STATIC ($$) = 1; }
913 | declspecs_nosc_nots_nosa_ea TYPE_QUAL
914 { $$ = tree_cons (NULL_TREE, $2, $1);
915 TREE_STATIC ($$) = 1; }
918 declspecs_nosc_nots_nosa_ea:
919 declspecs_nosc_nots_nosa_noea attributes
920 { $$ = tree_cons ($2, NULL_TREE, $1);
921 TREE_STATIC ($$) = TREE_STATIC ($1); }
924 declspecs_nosc_nots_sa_noea:
925 declspecs_nosc_nots_sa_noea TYPE_QUAL
926 { $$ = tree_cons (NULL_TREE, $2, $1);
927 TREE_STATIC ($$) = 1; }
928 | declspecs_nosc_nots_sa_ea TYPE_QUAL
929 { $$ = tree_cons (NULL_TREE, $2, $1);
930 TREE_STATIC ($$) = 1; }
933 declspecs_nosc_nots_sa_ea:
935 { $$ = tree_cons ($1, NULL_TREE, NULL_TREE);
936 TREE_STATIC ($$) = 0; }
937 | declspecs_nosc_nots_sa_noea attributes
938 { $$ = tree_cons ($2, NULL_TREE, $1);
939 TREE_STATIC ($$) = TREE_STATIC ($1); }
942 declspecs_nosc_ts_nosa_noea:
944 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
945 TREE_STATIC ($$) = 1; }
946 | declspecs_nosc_ts_nosa_noea TYPE_QUAL
947 { $$ = tree_cons (NULL_TREE, $2, $1);
948 TREE_STATIC ($$) = 1; }
949 | declspecs_nosc_ts_nosa_ea TYPE_QUAL
950 { $$ = tree_cons (NULL_TREE, $2, $1);
951 TREE_STATIC ($$) = 1; }
952 | declspecs_nosc_ts_nosa_noea typespec_reserved_nonattr
953 { $$ = tree_cons (NULL_TREE, $2, $1);
954 TREE_STATIC ($$) = 1; }
955 | declspecs_nosc_ts_nosa_ea typespec_reserved_nonattr
956 { $$ = tree_cons (NULL_TREE, $2, $1);
957 TREE_STATIC ($$) = 1; }
958 | declspecs_nosc_nots_nosa_noea typespec_nonattr
959 { $$ = tree_cons (NULL_TREE, $2, $1);
960 TREE_STATIC ($$) = 1; }
961 | declspecs_nosc_nots_nosa_ea typespec_nonattr
962 { $$ = tree_cons (NULL_TREE, $2, $1);
963 TREE_STATIC ($$) = 1; }
966 declspecs_nosc_ts_nosa_ea:
968 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
969 TREE_STATIC ($$) = 1; }
970 | declspecs_nosc_ts_nosa_noea attributes
971 { $$ = tree_cons ($2, NULL_TREE, $1);
972 TREE_STATIC ($$) = TREE_STATIC ($1); }
973 | declspecs_nosc_ts_nosa_noea typespec_reserved_attr
974 { $$ = tree_cons (NULL_TREE, $2, $1);
975 TREE_STATIC ($$) = 1; }
976 | declspecs_nosc_ts_nosa_ea typespec_reserved_attr
977 { $$ = tree_cons (NULL_TREE, $2, $1);
978 TREE_STATIC ($$) = 1; }
979 | declspecs_nosc_nots_nosa_noea typespec_attr
980 { $$ = tree_cons (NULL_TREE, $2, $1);
981 TREE_STATIC ($$) = 1; }
982 | declspecs_nosc_nots_nosa_ea typespec_attr
983 { $$ = tree_cons (NULL_TREE, $2, $1);
984 TREE_STATIC ($$) = 1; }
987 declspecs_nosc_ts_sa_noea:
988 declspecs_nosc_ts_sa_noea TYPE_QUAL
989 { $$ = tree_cons (NULL_TREE, $2, $1);
990 TREE_STATIC ($$) = 1; }
991 | declspecs_nosc_ts_sa_ea TYPE_QUAL
992 { $$ = tree_cons (NULL_TREE, $2, $1);
993 TREE_STATIC ($$) = 1; }
994 | declspecs_nosc_ts_sa_noea typespec_reserved_nonattr
995 { $$ = tree_cons (NULL_TREE, $2, $1);
996 TREE_STATIC ($$) = 1; }
997 | declspecs_nosc_ts_sa_ea typespec_reserved_nonattr
998 { $$ = tree_cons (NULL_TREE, $2, $1);
999 TREE_STATIC ($$) = 1; }
1000 | declspecs_nosc_nots_sa_noea typespec_nonattr
1001 { $$ = tree_cons (NULL_TREE, $2, $1);
1002 TREE_STATIC ($$) = 1; }
1003 | declspecs_nosc_nots_sa_ea typespec_nonattr
1004 { $$ = tree_cons (NULL_TREE, $2, $1);
1005 TREE_STATIC ($$) = 1; }
1008 declspecs_nosc_ts_sa_ea:
1009 declspecs_nosc_ts_sa_noea attributes
1010 { $$ = tree_cons ($2, NULL_TREE, $1);
1011 TREE_STATIC ($$) = TREE_STATIC ($1); }
1012 | declspecs_nosc_ts_sa_noea typespec_reserved_attr
1013 { $$ = tree_cons (NULL_TREE, $2, $1);
1014 TREE_STATIC ($$) = 1; }
1015 | declspecs_nosc_ts_sa_ea typespec_reserved_attr
1016 { $$ = tree_cons (NULL_TREE, $2, $1);
1017 TREE_STATIC ($$) = 1; }
1018 | declspecs_nosc_nots_sa_noea typespec_attr
1019 { $$ = tree_cons (NULL_TREE, $2, $1);
1020 TREE_STATIC ($$) = 1; }
1021 | declspecs_nosc_nots_sa_ea typespec_attr
1022 { $$ = tree_cons (NULL_TREE, $2, $1);
1023 TREE_STATIC ($$) = 1; }
1026 declspecs_sc_nots_nosa_noea:
1028 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
1029 TREE_STATIC ($$) = 0; }
1030 | declspecs_sc_nots_nosa_noea TYPE_QUAL
1031 { $$ = tree_cons (NULL_TREE, $2, $1);
1032 TREE_STATIC ($$) = 1; }
1033 | declspecs_sc_nots_nosa_ea TYPE_QUAL
1034 { $$ = tree_cons (NULL_TREE, $2, $1);
1035 TREE_STATIC ($$) = 1; }
1036 | declspecs_nosc_nots_nosa_noea scspec
1037 { if (extra_warnings && TREE_STATIC ($1))
1038 warning ("`%s' is not at beginning of declaration",
1039 IDENTIFIER_POINTER ($2));
1040 $$ = tree_cons (NULL_TREE, $2, $1);
1041 TREE_STATIC ($$) = TREE_STATIC ($1); }
1042 | declspecs_nosc_nots_nosa_ea scspec
1043 { if (extra_warnings && TREE_STATIC ($1))
1044 warning ("`%s' is not at beginning of declaration",
1045 IDENTIFIER_POINTER ($2));
1046 $$ = tree_cons (NULL_TREE, $2, $1);
1047 TREE_STATIC ($$) = TREE_STATIC ($1); }
1048 | declspecs_sc_nots_nosa_noea scspec
1049 { if (extra_warnings && TREE_STATIC ($1))
1050 warning ("`%s' is not at beginning of declaration",
1051 IDENTIFIER_POINTER ($2));
1052 $$ = tree_cons (NULL_TREE, $2, $1);
1053 TREE_STATIC ($$) = TREE_STATIC ($1); }
1054 | declspecs_sc_nots_nosa_ea scspec
1055 { if (extra_warnings && TREE_STATIC ($1))
1056 warning ("`%s' is not at beginning of declaration",
1057 IDENTIFIER_POINTER ($2));
1058 $$ = tree_cons (NULL_TREE, $2, $1);
1059 TREE_STATIC ($$) = TREE_STATIC ($1); }
1062 declspecs_sc_nots_nosa_ea:
1063 declspecs_sc_nots_nosa_noea attributes
1064 { $$ = tree_cons ($2, NULL_TREE, $1);
1065 TREE_STATIC ($$) = TREE_STATIC ($1); }
1068 declspecs_sc_nots_sa_noea:
1069 declspecs_sc_nots_sa_noea TYPE_QUAL
1070 { $$ = tree_cons (NULL_TREE, $2, $1);
1071 TREE_STATIC ($$) = 1; }
1072 | declspecs_sc_nots_sa_ea TYPE_QUAL
1073 { $$ = tree_cons (NULL_TREE, $2, $1);
1074 TREE_STATIC ($$) = 1; }
1075 | declspecs_nosc_nots_sa_noea scspec
1076 { if (extra_warnings && TREE_STATIC ($1))
1077 warning ("`%s' is not at beginning of declaration",
1078 IDENTIFIER_POINTER ($2));
1079 $$ = tree_cons (NULL_TREE, $2, $1);
1080 TREE_STATIC ($$) = TREE_STATIC ($1); }
1081 | declspecs_nosc_nots_sa_ea scspec
1082 { if (extra_warnings && TREE_STATIC ($1))
1083 warning ("`%s' is not at beginning of declaration",
1084 IDENTIFIER_POINTER ($2));
1085 $$ = tree_cons (NULL_TREE, $2, $1);
1086 TREE_STATIC ($$) = TREE_STATIC ($1); }
1087 | declspecs_sc_nots_sa_noea scspec
1088 { if (extra_warnings && TREE_STATIC ($1))
1089 warning ("`%s' is not at beginning of declaration",
1090 IDENTIFIER_POINTER ($2));
1091 $$ = tree_cons (NULL_TREE, $2, $1);
1092 TREE_STATIC ($$) = TREE_STATIC ($1); }
1093 | declspecs_sc_nots_sa_ea scspec
1094 { if (extra_warnings && TREE_STATIC ($1))
1095 warning ("`%s' is not at beginning of declaration",
1096 IDENTIFIER_POINTER ($2));
1097 $$ = tree_cons (NULL_TREE, $2, $1);
1098 TREE_STATIC ($$) = TREE_STATIC ($1); }
1101 declspecs_sc_nots_sa_ea:
1102 declspecs_sc_nots_sa_noea attributes
1103 { $$ = tree_cons ($2, NULL_TREE, $1);
1104 TREE_STATIC ($$) = TREE_STATIC ($1); }
1107 declspecs_sc_ts_nosa_noea:
1108 declspecs_sc_ts_nosa_noea TYPE_QUAL
1109 { $$ = tree_cons (NULL_TREE, $2, $1);
1110 TREE_STATIC ($$) = 1; }
1111 | declspecs_sc_ts_nosa_ea TYPE_QUAL
1112 { $$ = tree_cons (NULL_TREE, $2, $1);
1113 TREE_STATIC ($$) = 1; }
1114 | declspecs_sc_ts_nosa_noea typespec_reserved_nonattr
1115 { $$ = tree_cons (NULL_TREE, $2, $1);
1116 TREE_STATIC ($$) = 1; }
1117 | declspecs_sc_ts_nosa_ea typespec_reserved_nonattr
1118 { $$ = tree_cons (NULL_TREE, $2, $1);
1119 TREE_STATIC ($$) = 1; }
1120 | declspecs_sc_nots_nosa_noea typespec_nonattr
1121 { $$ = tree_cons (NULL_TREE, $2, $1);
1122 TREE_STATIC ($$) = 1; }
1123 | declspecs_sc_nots_nosa_ea typespec_nonattr
1124 { $$ = tree_cons (NULL_TREE, $2, $1);
1125 TREE_STATIC ($$) = 1; }
1126 | declspecs_nosc_ts_nosa_noea scspec
1127 { if (extra_warnings && TREE_STATIC ($1))
1128 warning ("`%s' is not at beginning of declaration",
1129 IDENTIFIER_POINTER ($2));
1130 $$ = tree_cons (NULL_TREE, $2, $1);
1131 TREE_STATIC ($$) = TREE_STATIC ($1); }
1132 | declspecs_nosc_ts_nosa_ea scspec
1133 { if (extra_warnings && TREE_STATIC ($1))
1134 warning ("`%s' is not at beginning of declaration",
1135 IDENTIFIER_POINTER ($2));
1136 $$ = tree_cons (NULL_TREE, $2, $1);
1137 TREE_STATIC ($$) = TREE_STATIC ($1); }
1138 | declspecs_sc_ts_nosa_noea scspec
1139 { if (extra_warnings && TREE_STATIC ($1))
1140 warning ("`%s' is not at beginning of declaration",
1141 IDENTIFIER_POINTER ($2));
1142 $$ = tree_cons (NULL_TREE, $2, $1);
1143 TREE_STATIC ($$) = TREE_STATIC ($1); }
1144 | declspecs_sc_ts_nosa_ea scspec
1145 { if (extra_warnings && TREE_STATIC ($1))
1146 warning ("`%s' is not at beginning of declaration",
1147 IDENTIFIER_POINTER ($2));
1148 $$ = tree_cons (NULL_TREE, $2, $1);
1149 TREE_STATIC ($$) = TREE_STATIC ($1); }
1152 declspecs_sc_ts_nosa_ea:
1153 declspecs_sc_ts_nosa_noea attributes
1154 { $$ = tree_cons ($2, NULL_TREE, $1);
1155 TREE_STATIC ($$) = TREE_STATIC ($1); }
1156 | declspecs_sc_ts_nosa_noea typespec_reserved_attr
1157 { $$ = tree_cons (NULL_TREE, $2, $1);
1158 TREE_STATIC ($$) = 1; }
1159 | declspecs_sc_ts_nosa_ea typespec_reserved_attr
1160 { $$ = tree_cons (NULL_TREE, $2, $1);
1161 TREE_STATIC ($$) = 1; }
1162 | declspecs_sc_nots_nosa_noea typespec_attr
1163 { $$ = tree_cons (NULL_TREE, $2, $1);
1164 TREE_STATIC ($$) = 1; }
1165 | declspecs_sc_nots_nosa_ea typespec_attr
1166 { $$ = tree_cons (NULL_TREE, $2, $1);
1167 TREE_STATIC ($$) = 1; }
1170 declspecs_sc_ts_sa_noea:
1171 declspecs_sc_ts_sa_noea TYPE_QUAL
1172 { $$ = tree_cons (NULL_TREE, $2, $1);
1173 TREE_STATIC ($$) = 1; }
1174 | declspecs_sc_ts_sa_ea TYPE_QUAL
1175 { $$ = tree_cons (NULL_TREE, $2, $1);
1176 TREE_STATIC ($$) = 1; }
1177 | declspecs_sc_ts_sa_noea typespec_reserved_nonattr
1178 { $$ = tree_cons (NULL_TREE, $2, $1);
1179 TREE_STATIC ($$) = 1; }
1180 | declspecs_sc_ts_sa_ea typespec_reserved_nonattr
1181 { $$ = tree_cons (NULL_TREE, $2, $1);
1182 TREE_STATIC ($$) = 1; }
1183 | declspecs_sc_nots_sa_noea typespec_nonattr
1184 { $$ = tree_cons (NULL_TREE, $2, $1);
1185 TREE_STATIC ($$) = 1; }
1186 | declspecs_sc_nots_sa_ea typespec_nonattr
1187 { $$ = tree_cons (NULL_TREE, $2, $1);
1188 TREE_STATIC ($$) = 1; }
1189 | declspecs_nosc_ts_sa_noea scspec
1190 { if (extra_warnings && TREE_STATIC ($1))
1191 warning ("`%s' is not at beginning of declaration",
1192 IDENTIFIER_POINTER ($2));
1193 $$ = tree_cons (NULL_TREE, $2, $1);
1194 TREE_STATIC ($$) = TREE_STATIC ($1); }
1195 | declspecs_nosc_ts_sa_ea scspec
1196 { if (extra_warnings && TREE_STATIC ($1))
1197 warning ("`%s' is not at beginning of declaration",
1198 IDENTIFIER_POINTER ($2));
1199 $$ = tree_cons (NULL_TREE, $2, $1);
1200 TREE_STATIC ($$) = TREE_STATIC ($1); }
1201 | declspecs_sc_ts_sa_noea scspec
1202 { if (extra_warnings && TREE_STATIC ($1))
1203 warning ("`%s' is not at beginning of declaration",
1204 IDENTIFIER_POINTER ($2));
1205 $$ = tree_cons (NULL_TREE, $2, $1);
1206 TREE_STATIC ($$) = TREE_STATIC ($1); }
1207 | declspecs_sc_ts_sa_ea scspec
1208 { if (extra_warnings && TREE_STATIC ($1))
1209 warning ("`%s' is not at beginning of declaration",
1210 IDENTIFIER_POINTER ($2));
1211 $$ = tree_cons (NULL_TREE, $2, $1);
1212 TREE_STATIC ($$) = TREE_STATIC ($1); }
1215 declspecs_sc_ts_sa_ea:
1216 declspecs_sc_ts_sa_noea attributes
1217 { $$ = tree_cons ($2, NULL_TREE, $1);
1218 TREE_STATIC ($$) = TREE_STATIC ($1); }
1219 | declspecs_sc_ts_sa_noea typespec_reserved_attr
1220 { $$ = tree_cons (NULL_TREE, $2, $1);
1221 TREE_STATIC ($$) = 1; }
1222 | declspecs_sc_ts_sa_ea typespec_reserved_attr
1223 { $$ = tree_cons (NULL_TREE, $2, $1);
1224 TREE_STATIC ($$) = 1; }
1225 | declspecs_sc_nots_sa_noea typespec_attr
1226 { $$ = tree_cons (NULL_TREE, $2, $1);
1227 TREE_STATIC ($$) = 1; }
1228 | declspecs_sc_nots_sa_ea typespec_attr
1229 { $$ = tree_cons (NULL_TREE, $2, $1);
1230 TREE_STATIC ($$) = 1; }
1233 /* Particular useful classes of declspecs. */
1235 declspecs_nosc_ts_nosa_noea
1236 | declspecs_nosc_ts_nosa_ea
1237 | declspecs_nosc_ts_sa_noea
1238 | declspecs_nosc_ts_sa_ea
1239 | declspecs_sc_ts_nosa_noea
1240 | declspecs_sc_ts_nosa_ea
1241 | declspecs_sc_ts_sa_noea
1242 | declspecs_sc_ts_sa_ea
1246 declspecs_nosc_nots_nosa_noea
1247 | declspecs_nosc_nots_nosa_ea
1248 | declspecs_nosc_nots_sa_noea
1249 | declspecs_nosc_nots_sa_ea
1250 | declspecs_sc_nots_nosa_noea
1251 | declspecs_sc_nots_nosa_ea
1252 | declspecs_sc_nots_sa_noea
1253 | declspecs_sc_nots_sa_ea
1257 declspecs_nosc_ts_nosa_noea
1258 | declspecs_nosc_ts_nosa_ea
1259 | declspecs_sc_ts_nosa_noea
1260 | declspecs_sc_ts_nosa_ea
1263 declspecs_nots_nosa:
1264 declspecs_nosc_nots_nosa_noea
1265 | declspecs_nosc_nots_nosa_ea
1266 | declspecs_sc_nots_nosa_noea
1267 | declspecs_sc_nots_nosa_ea
1271 declspecs_nosc_ts_nosa_noea
1272 | declspecs_nosc_ts_nosa_ea
1273 | declspecs_nosc_ts_sa_noea
1274 | declspecs_nosc_ts_sa_ea
1277 declspecs_nosc_nots:
1278 declspecs_nosc_nots_nosa_noea
1279 | declspecs_nosc_nots_nosa_ea
1280 | declspecs_nosc_nots_sa_noea
1281 | declspecs_nosc_nots_sa_ea
1285 declspecs_nosc_ts_nosa_noea
1286 | declspecs_nosc_ts_nosa_ea
1287 | declspecs_nosc_ts_sa_noea
1288 | declspecs_nosc_ts_sa_ea
1289 | declspecs_nosc_nots_nosa_noea
1290 | declspecs_nosc_nots_nosa_ea
1291 | declspecs_nosc_nots_sa_noea
1292 | declspecs_nosc_nots_sa_ea
1296 declspecs_nosc_nots_nosa_noea
1297 | declspecs_nosc_nots_nosa_ea
1298 | declspecs_nosc_nots_sa_noea
1299 | declspecs_nosc_nots_sa_ea
1300 | declspecs_nosc_ts_nosa_noea
1301 | declspecs_nosc_ts_nosa_ea
1302 | declspecs_nosc_ts_sa_noea
1303 | declspecs_nosc_ts_sa_ea
1304 | declspecs_sc_nots_nosa_noea
1305 | declspecs_sc_nots_nosa_ea
1306 | declspecs_sc_nots_sa_noea
1307 | declspecs_sc_nots_sa_ea
1308 | declspecs_sc_ts_nosa_noea
1309 | declspecs_sc_ts_nosa_ea
1310 | declspecs_sc_ts_sa_noea
1311 | declspecs_sc_ts_sa_ea
1314 /* A (possibly empty) sequence of type qualifiers and attributes. */
1315 maybe_type_quals_attrs:
1318 | declspecs_nosc_nots
1322 /* A type specifier (but not a type qualifier).
1323 Once we have seen one of these in a declaration,
1324 if a typedef name appears then it is being redeclared.
1326 The _reserved versions start with a reserved word and may appear anywhere
1327 in the declaration specifiers; the _nonreserved versions may only
1328 appear before any other type specifiers, and after that are (if names)
1331 FIXME: should the _nonreserved version be restricted to names being
1332 redeclared only? The other entries there relate only the GNU extensions
1333 and Objective C, and are historically parsed thus, and don't make sense
1334 after other type specifiers, but it might be cleaner to count them as
1337 _attr means: specifiers that either end with attributes,
1338 or are such that any following attributes would
1339 be parsed as part of the specifier.
1341 _nonattr: specifiers. */
1344 typespec_reserved_nonattr
1345 | typespec_nonreserved_nonattr
1349 typespec_reserved_attr
1352 typespec_reserved_nonattr:
1354 { OBJC_NEED_RAW_IDENTIFIER (1); }
1358 typespec_reserved_attr:
1362 typespec_nonreserved_nonattr:
1364 { /* For a typedef name, record the meaning, not the name.
1365 In case of `foo foo, bar;'. */
1366 $$ = lookup_name ($1); }
1368 | CLASSNAME protocolrefs
1369 { $$ = get_static_reference ($1, $2); }
1370 | OBJECTNAME protocolrefs
1371 { $$ = get_object_reference ($2); }
1373 /* Make "<SomeProtocol>" equivalent to "id <SomeProtocol>"
1374 - nisse@lysator.liu.se */
1375 | non_empty_protocolrefs
1376 { $$ = get_object_reference ($1); }
1378 | TYPEOF '(' expr ')'
1379 { $$ = TREE_TYPE ($3); }
1380 | TYPEOF '(' typename ')'
1381 { $$ = groktypename ($3); }
1384 /* typespec_nonreserved_attr does not exist. */
1388 | initdecls ',' maybe_resetattrs initdcl
1393 | notype_initdecls ',' maybe_resetattrs notype_initdcl
1399 | ASM_KEYWORD '(' string ')'
1400 { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
1406 declarator maybeasm maybe_attribute '='
1407 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1408 chainon ($3, all_prefix_attributes));
1409 start_init ($<ttype>$, $2, global_bindings_p ()); }
1411 /* Note how the declaration of the variable is in effect while its init is parsed! */
1413 finish_decl ($<ttype>5, $6, $2); }
1414 | declarator maybeasm maybe_attribute
1415 { tree d = start_decl ($1, current_declspecs, 0,
1416 chainon ($3, all_prefix_attributes));
1417 finish_decl (d, NULL_TREE, $2);
1422 notype_declarator maybeasm maybe_attribute '='
1423 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1424 chainon ($3, all_prefix_attributes));
1425 start_init ($<ttype>$, $2, global_bindings_p ()); }
1427 /* Note how the declaration of the variable is in effect while its init is parsed! */
1429 finish_decl ($<ttype>5, $6, $2); }
1430 | notype_declarator maybeasm maybe_attribute
1431 { tree d = start_decl ($1, current_declspecs, 0,
1432 chainon ($3, all_prefix_attributes));
1433 finish_decl (d, NULL_TREE, $2); }
1435 /* the * rules are dummies to accept the Apollo extended syntax
1436 so that the header files compile. */
1447 | attributes attribute
1448 { $$ = chainon ($1, $2); }
1452 ATTRIBUTE '(' '(' attribute_list ')' ')'
1459 | attribute_list ',' attrib
1460 { $$ = chainon ($1, $3); }
1467 { $$ = build_tree_list ($1, NULL_TREE); }
1468 | any_word '(' IDENTIFIER ')'
1469 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
1470 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
1471 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
1472 | any_word '(' exprlist ')'
1473 { $$ = build_tree_list ($1, $3); }
1476 /* This still leaves out most reserved keywords,
1477 shouldn't we include them? */
1491 /* Initializers. `init' is the entry point. */
1496 { really_start_incremental_init (NULL_TREE); }
1497 initlist_maybe_comma '}'
1498 { $$ = pop_init_level (0); }
1500 { $$ = error_mark_node; }
1503 /* `initlist_maybe_comma' is the guts of an initializer in braces. */
1504 initlist_maybe_comma:
1507 pedwarn ("ISO C forbids empty initializer braces"); }
1508 | initlist1 maybecomma
1513 | initlist1 ',' initelt
1516 /* `initelt' is a single element of an initializer.
1517 It may use braces. */
1519 designator_list '=' initval
1520 { if (pedantic && ! flag_isoc99)
1521 pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
1522 | designator initval
1524 pedwarn ("obsolete use of designated initializer without `='"); }
1526 { set_init_label ($1);
1528 pedwarn ("obsolete use of designated initializer with `:'"); }
1535 { push_init_level (0); }
1536 initlist_maybe_comma '}'
1537 { process_init_element (pop_init_level (0)); }
1539 { process_init_element ($1); }
1545 | designator_list designator
1550 { set_init_label ($2); }
1551 /* These are for labeled elements. The syntax for an array element
1552 initializer conflicts with the syntax for an Objective-C message,
1553 so don't include these productions in the Objective-C grammar. */
1555 | '[' expr_no_commas ELLIPSIS expr_no_commas ']'
1556 { set_init_index ($2, $4);
1558 pedwarn ("ISO C forbids specifying range of elements to initialize"); }
1559 | '[' expr_no_commas ']'
1560 { set_init_index ($2, NULL_TREE); }
1567 pedwarn ("ISO C forbids nested functions");
1569 push_function_context ();
1570 if (! start_function (current_declspecs, $1,
1571 all_prefix_attributes))
1573 pop_function_context ();
1577 old_style_parm_decls
1578 { store_parm_decls (); }
1579 /* This used to use compstmt_or_error.
1580 That caused a bug with input `f(g) int g {}',
1581 where the use of YYERROR1 above caused an error
1582 which then was handled by compstmt_or_error.
1583 There followed a repeated execution of that same rule,
1584 which called YYERROR1 again, and so on. */
1585 save_filename save_lineno compstmt
1586 { tree decl = current_function_decl;
1587 DECL_SOURCE_FILE (decl) = $5;
1588 DECL_SOURCE_LINE (decl) = $6;
1589 finish_function (1, 1);
1590 pop_function_context ();
1591 add_decl_stmt (decl); }
1594 notype_nested_function:
1597 pedwarn ("ISO C forbids nested functions");
1599 push_function_context ();
1600 if (! start_function (current_declspecs, $1,
1601 all_prefix_attributes))
1603 pop_function_context ();
1607 old_style_parm_decls
1608 { store_parm_decls (); }
1609 /* This used to use compstmt_or_error.
1610 That caused a bug with input `f(g) int g {}',
1611 where the use of YYERROR1 above caused an error
1612 which then was handled by compstmt_or_error.
1613 There followed a repeated execution of that same rule,
1614 which called YYERROR1 again, and so on. */
1615 save_filename save_lineno compstmt
1616 { tree decl = current_function_decl;
1617 DECL_SOURCE_FILE (decl) = $5;
1618 DECL_SOURCE_LINE (decl) = $6;
1619 finish_function (1, 1);
1620 pop_function_context ();
1621 add_decl_stmt (decl); }
1624 /* Any kind of declarator (thus, all declarators allowed
1625 after an explicit typespec). */
1628 after_type_declarator
1632 /* A declarator that is allowed only after an explicit typespec. */
1634 after_type_declarator:
1635 '(' maybe_attribute after_type_declarator ')'
1636 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1637 | after_type_declarator '(' parmlist_or_identifiers %prec '.'
1638 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1639 /* | after_type_declarator '(' error ')' %prec '.'
1640 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1641 poplevel (0, 0, 0); } */
1642 | after_type_declarator array_declarator %prec '.'
1643 { $$ = set_array_declarator_type ($2, $1, 0); }
1644 | '*' maybe_type_quals_attrs after_type_declarator %prec UNARY
1645 { $$ = make_pointer_declarator ($2, $3); }
1652 /* Kinds of declarator that can appear in a parameter list
1653 in addition to notype_declarator. This is like after_type_declarator
1654 but does not allow a typedef name in parentheses as an identifier
1655 (because it would conflict with a function with that typedef as arg). */
1657 parm_declarator_starttypename
1658 | parm_declarator_nostarttypename
1661 parm_declarator_starttypename:
1662 parm_declarator_starttypename '(' parmlist_or_identifiers %prec '.'
1663 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1664 /* | parm_declarator_starttypename '(' error ')' %prec '.'
1665 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1666 poplevel (0, 0, 0); } */
1667 | parm_declarator_starttypename array_declarator %prec '.'
1668 { $$ = set_array_declarator_type ($2, $1, 0); }
1675 parm_declarator_nostarttypename:
1676 parm_declarator_nostarttypename '(' parmlist_or_identifiers %prec '.'
1677 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1678 /* | parm_declarator_nostarttypename '(' error ')' %prec '.'
1679 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1680 poplevel (0, 0, 0); } */
1681 | parm_declarator_nostarttypename array_declarator %prec '.'
1682 { $$ = set_array_declarator_type ($2, $1, 0); }
1683 | '*' maybe_type_quals_attrs parm_declarator_starttypename %prec UNARY
1684 { $$ = make_pointer_declarator ($2, $3); }
1685 | '*' maybe_type_quals_attrs parm_declarator_nostarttypename %prec UNARY
1686 { $$ = make_pointer_declarator ($2, $3); }
1687 | '(' maybe_attribute parm_declarator_nostarttypename ')'
1688 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1691 /* A declarator allowed whether or not there has been
1692 an explicit typespec. These cannot redeclare a typedef-name. */
1695 notype_declarator '(' parmlist_or_identifiers %prec '.'
1696 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1697 /* | notype_declarator '(' error ')' %prec '.'
1698 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1699 poplevel (0, 0, 0); } */
1700 | '(' maybe_attribute notype_declarator ')'
1701 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1702 | '*' maybe_type_quals_attrs notype_declarator %prec UNARY
1703 { $$ = make_pointer_declarator ($2, $3); }
1704 | notype_declarator array_declarator %prec '.'
1705 { $$ = set_array_declarator_type ($2, $1, 0); }
1730 /* structsp_attr: struct/union/enum specifiers that either
1731 end with attributes, or are such that any following attributes would
1732 be parsed as part of the struct/union/enum specifier.
1734 structsp_nonattr: other struct/union/enum specifiers. */
1737 struct_head identifier '{'
1738 { $$ = start_struct (RECORD_TYPE, $2);
1739 /* Start scope of tag before parsing components. */
1741 component_decl_list '}' maybe_attribute
1742 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1743 | struct_head '{' component_decl_list '}' maybe_attribute
1744 { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
1745 $3, chainon ($1, $5));
1747 | union_head identifier '{'
1748 { $$ = start_struct (UNION_TYPE, $2); }
1749 component_decl_list '}' maybe_attribute
1750 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1751 | union_head '{' component_decl_list '}' maybe_attribute
1752 { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
1753 $3, chainon ($1, $5));
1755 | enum_head identifier '{'
1756 { $$ = start_enum ($2); }
1757 enumlist maybecomma_warn '}' maybe_attribute
1758 { $$ = finish_enum ($<ttype>4, nreverse ($5),
1759 chainon ($1, $8)); }
1761 { $$ = start_enum (NULL_TREE); }
1762 enumlist maybecomma_warn '}' maybe_attribute
1763 { $$ = finish_enum ($<ttype>3, nreverse ($4),
1764 chainon ($1, $7)); }
1768 struct_head identifier
1769 { $$ = xref_tag (RECORD_TYPE, $2); }
1770 | union_head identifier
1771 { $$ = xref_tag (UNION_TYPE, $2); }
1772 | enum_head identifier
1773 { $$ = xref_tag (ENUMERAL_TYPE, $2);
1774 /* In ISO C, enumerated types can be referred to
1775 only if already defined. */
1776 if (pedantic && !COMPLETE_TYPE_P ($$))
1777 pedwarn ("ISO C forbids forward references to `enum' types"); }
1788 { if (pedantic && ! flag_isoc99)
1789 pedwarn ("comma at end of enumerator list"); }
1792 component_decl_list:
1793 component_decl_list2
1795 | component_decl_list2 component_decl
1796 { $$ = chainon ($1, $2);
1797 pedwarn ("no semicolon at end of struct or union"); }
1800 component_decl_list2: /* empty */
1802 | component_decl_list2 component_decl ';'
1803 { $$ = chainon ($1, $2); }
1804 | component_decl_list2 ';'
1806 pedwarn ("extra semicolon in struct or union specified"); }
1808 /* foo(sizeof(struct{ @defs(ClassName)})); */
1809 | DEFS '(' CLASSNAME ')'
1811 tree interface = lookup_interface ($3);
1814 $$ = get_class_ivars (interface);
1817 error ("cannot find interface declaration for `%s'",
1818 IDENTIFIER_POINTER ($3));
1826 declspecs_nosc_ts setspecs components
1828 POP_DECLSPEC_STACK; }
1829 | declspecs_nosc_ts setspecs save_filename save_lineno
1831 /* Support for unnamed structs or unions as members of
1832 structs or unions (which is [a] useful and [b] supports
1835 pedwarn ("ISO C doesn't support unnamed structs/unions");
1837 $$ = grokfield($3, $4, NULL, current_declspecs, NULL_TREE);
1838 POP_DECLSPEC_STACK; }
1839 | declspecs_nosc_nots setspecs components_notype
1841 POP_DECLSPEC_STACK; }
1842 | declspecs_nosc_nots
1844 pedwarn ("ISO C forbids member declarations with no members");
1849 | extension component_decl
1851 RESTORE_WARN_FLAGS ($1); }
1855 component_declarator
1856 | components ',' maybe_resetattrs component_declarator
1857 { $$ = chainon ($1, $4); }
1861 component_notype_declarator
1862 | components_notype ',' maybe_resetattrs component_notype_declarator
1863 { $$ = chainon ($1, $4); }
1866 component_declarator:
1867 save_filename save_lineno declarator maybe_attribute
1868 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1869 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1870 | save_filename save_lineno
1871 declarator ':' expr_no_commas maybe_attribute
1872 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1873 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1874 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1875 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1876 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1879 component_notype_declarator:
1880 save_filename save_lineno notype_declarator maybe_attribute
1881 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1882 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1883 | save_filename save_lineno
1884 notype_declarator ':' expr_no_commas maybe_attribute
1885 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1886 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1887 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1888 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1889 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1892 /* We chain the enumerators in reverse order.
1893 They are put in forward order where enumlist is used.
1894 (The order used to be significant, but no longer is so.
1895 However, we still maintain the order, just to be clean.) */
1899 | enumlist ',' enumerator
1900 { if ($1 == error_mark_node)
1903 $$ = chainon ($3, $1); }
1905 { $$ = error_mark_node; }
1911 { $$ = build_enumerator ($1, NULL_TREE); }
1912 | identifier '=' expr_no_commas
1913 { $$ = build_enumerator ($1, $3); }
1918 { pending_xref_error ();
1921 { $$ = build_tree_list ($<ttype>2, $3); }
1924 absdcl: /* an absolute declarator */
1930 absdcl_maybe_attribute: /* absdcl maybe_attribute, but not just attributes */
1932 { $$ = build_tree_list (build_tree_list (current_declspecs,
1934 all_prefix_attributes); }
1936 { $$ = build_tree_list (build_tree_list (current_declspecs,
1938 all_prefix_attributes); }
1939 | absdcl1_noea attributes
1940 { $$ = build_tree_list (build_tree_list (current_declspecs,
1942 chainon ($2, all_prefix_attributes)); }
1945 absdcl1: /* a nonempty absolute declarator */
1952 | '*' maybe_type_quals_attrs absdcl1_noea
1953 { $$ = make_pointer_declarator ($2, $3); }
1957 '*' maybe_type_quals_attrs
1958 { $$ = make_pointer_declarator ($2, NULL_TREE); }
1959 | '*' maybe_type_quals_attrs absdcl1_ea
1960 { $$ = make_pointer_declarator ($2, $3); }
1964 '(' maybe_attribute absdcl1 ')'
1965 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1966 | direct_absdcl1 '(' parmlist
1967 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1968 | direct_absdcl1 array_declarator
1969 { $$ = set_array_declarator_type ($2, $1, 1); }
1971 { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
1973 { $$ = set_array_declarator_type ($1, NULL_TREE, 1); }
1976 /* The [...] part of a declarator for an array type. */
1979 '[' maybe_type_quals_attrs expr ']'
1980 { $$ = build_array_declarator ($3, $2, 0, 0); }
1981 | '[' maybe_type_quals_attrs ']'
1982 { $$ = build_array_declarator (NULL_TREE, $2, 0, 0); }
1983 | '[' maybe_type_quals_attrs '*' ']'
1984 { $$ = build_array_declarator (NULL_TREE, $2, 0, 1); }
1985 | '[' STATIC maybe_type_quals_attrs expr ']'
1986 { $$ = build_array_declarator ($4, $3, 1, 0); }
1987 /* declspecs_nosc_nots is a synonym for type_quals_attrs. */
1988 | '[' declspecs_nosc_nots STATIC expr ']'
1989 { $$ = build_array_declarator ($4, $2, 1, 0); }
1992 /* A nonempty series of declarations and statements (possibly followed by
1993 some labels) that can form the body of a compound statement.
1994 NOTE: we don't allow labels on declarations; this might seem like a
1995 natural extension, but there would be a conflict between attributes
1996 on the label and prefix attributes on the declaration. */
1999 lineno_stmt_decl_or_labels_ending_stmt
2000 | lineno_stmt_decl_or_labels_ending_decl
2001 | lineno_stmt_decl_or_labels_ending_label
2003 pedwarn ("deprecated use of label at end of compound statement");
2005 | lineno_stmt_decl_or_labels_ending_error
2008 lineno_stmt_decl_or_labels_ending_stmt:
2010 | lineno_stmt_decl_or_labels_ending_stmt lineno_stmt
2011 | lineno_stmt_decl_or_labels_ending_decl lineno_stmt
2012 | lineno_stmt_decl_or_labels_ending_label lineno_stmt
2013 | lineno_stmt_decl_or_labels_ending_error lineno_stmt
2016 lineno_stmt_decl_or_labels_ending_decl:
2018 | lineno_stmt_decl_or_labels_ending_stmt lineno_decl
2019 { if (pedantic && !flag_isoc99)
2020 pedwarn ("ISO C89 forbids mixed declarations and code"); }
2021 | lineno_stmt_decl_or_labels_ending_decl lineno_decl
2022 | lineno_stmt_decl_or_labels_ending_error lineno_decl
2025 lineno_stmt_decl_or_labels_ending_label:
2027 | lineno_stmt_decl_or_labels_ending_stmt lineno_label
2028 | lineno_stmt_decl_or_labels_ending_decl lineno_label
2029 | lineno_stmt_decl_or_labels_ending_label lineno_label
2030 | lineno_stmt_decl_or_labels_ending_error lineno_label
2033 lineno_stmt_decl_or_labels_ending_error:
2035 | lineno_stmt_decl_or_labels errstmt
2038 lineno_stmt_decl_or_labels:
2039 lineno_stmt_decl_or_labels_ending_stmt
2040 | lineno_stmt_decl_or_labels_ending_decl
2041 | lineno_stmt_decl_or_labels_ending_label
2042 | lineno_stmt_decl_or_labels_ending_error
2048 pushlevel: /* empty */
2051 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2053 if (objc_method_context)
2059 poplevel: /* empty */
2060 { $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
2062 /* Start and end blocks created for the new scopes of C99. */
2063 c99_block_start: /* empty */
2066 $$ = c_begin_compound_stmt ();
2069 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2071 if (objc_method_context)
2080 /* Productions using c99_block_start and c99_block_end will need to do what's
2081 in compstmt: RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); $$ = $2; where
2082 $1 is the value of c99_block_start and $2 of c99_block_end. */
2083 c99_block_end: /* empty */
2086 tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
2087 $$ = poplevel (kept_level_p (), 0, 0);
2088 SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
2089 = SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
2096 /* Read zero or more forward-declarations for labels
2097 that nested functions can jump to. */
2102 pedwarn ("ISO C forbids label declarations"); }
2107 | label_decls label_decl
2111 LABEL identifiers_or_typenames ';'
2113 for (link = $2; link; link = TREE_CHAIN (link))
2115 tree label = shadow_label (TREE_VALUE (link));
2116 C_DECLARED_LABEL_FLAG (label) = 1;
2117 add_decl_stmt (label);
2122 /* This is the body of a function definition.
2123 It causes syntax errors to ignore to the next openbrace. */
2130 compstmt_start: '{' { compstmt_count++;
2131 $$ = c_begin_compound_stmt (); }
2133 compstmt_nostart: '}'
2134 { $$ = convert (void_type_node, integer_zero_node); }
2135 | pushlevel maybe_label_decls compstmt_contents_nonempty '}' poplevel
2136 { $$ = poplevel (kept_level_p (), 1, 0);
2137 SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
2138 = SCOPE_STMT_BLOCK (TREE_VALUE ($5))
2142 compstmt_contents_nonempty:
2147 compstmt_primary_start:
2149 { if (current_function_decl == 0)
2151 error ("braced-group within expression allowed only inside a function");
2154 /* We must force a BLOCK for this level
2155 so that, if it is not expanded later,
2156 there is a way to turn off the entire subtree of blocks
2157 that are contained in it. */
2159 push_label_level ();
2161 $$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
2164 compstmt: compstmt_start compstmt_nostart
2165 { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2166 last_expr_type = NULL_TREE;
2170 /* Value is number of statements counted as of the closeparen. */
2172 if_prefix c99_block_lineno_labeled_stmt
2173 { c_finish_then (); }
2174 /* Make sure c_expand_end_cond is run once
2175 for each call to c_expand_start_cond.
2176 Otherwise a crash is likely. */
2181 /* We must build the IF_STMT node before parsing its
2182 condition so that STMT_LINENO refers to the line
2183 containing the "if", and not the line containing
2184 the close-parenthesis.
2186 c_begin_if_stmt returns the IF_STMT node, which
2187 we later pass to c_expand_start_cond to fill
2188 in the condition and other tidbits. */
2190 { $<ttype>$ = c_begin_if_stmt (); }
2192 { c_expand_start_cond (truthvalue_conversion ($4),
2193 compstmt_count,$<ttype>2);
2194 $<itype>$ = stmt_count;
2195 if_stmt_file = $<filename>-2;
2196 if_stmt_line = $<lineno>-1; }
2199 /* This is a subroutine of stmt.
2200 It is used twice, once for valid DO statements
2201 and once for catching errors in parsing the end test. */
2207 = add_stmt (build_stmt (DO_STMT, NULL_TREE,
2209 /* In the event that a parse error prevents
2210 parsing the complete do-statement, set the
2211 condition now. Otherwise, we can get crashes at
2212 RTL-generation time. */
2213 DO_COND ($<ttype>$) = error_mark_node; }
2214 c99_block_lineno_labeled_stmt WHILE
2216 RECHAIN_STMTS ($$, DO_BODY ($$)); }
2219 /* The forced readahead in here is because we might be at the end of a
2220 line, and the line and file won't be bumped until yylex absorbs the
2221 first token on the next line. */
2223 { if (yychar == YYEMPTY)
2225 $$ = input_filename; }
2229 { if (yychar == YYEMPTY)
2234 lineno_labeled_stmt:
2236 | lineno_label lineno_labeled_stmt
2239 /* Like lineno_labeled_stmt, but a block in C99. */
2240 c99_block_lineno_labeled_stmt:
2241 c99_block_start lineno_labeled_stmt c99_block_end
2243 RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); }
2247 save_filename save_lineno stmt
2250 STMT_LINENO ($3) = $2;
2251 /* ??? We currently have no way of recording
2252 the filename for a statement. This probably
2253 matters little in practice at the moment,
2254 but I suspect that problems will occur when
2255 doing inlining at the tree level. */
2261 save_filename save_lineno label
2264 STMT_LINENO ($3) = $2;
2269 select_or_iter_stmt:
2271 { c_expand_start_else ();
2272 $<itype>1 = stmt_count; }
2273 c99_block_lineno_labeled_stmt
2275 c_expand_end_cond ();
2276 if (extra_warnings && stmt_count == $<itype>1)
2277 warning ("empty body in an else-statement"); }
2278 | simple_if %prec IF
2279 { c_expand_end_cond ();
2280 /* This warning is here instead of in simple_if, because we
2281 do not want a warning if an empty if is followed by an
2282 else statement. Increment stmt_count so we don't
2283 give a second error if this is a nested `if'. */
2284 if (extra_warnings && stmt_count++ == $<itype>1)
2285 warning_with_file_and_line (if_stmt_file, if_stmt_line,
2286 "empty body in an if-statement"); }
2287 /* Make sure c_expand_end_cond is run once
2288 for each call to c_expand_start_cond.
2289 Otherwise a crash is likely. */
2290 | simple_if ELSE error
2291 { c_expand_end_cond (); }
2292 /* We must build the WHILE_STMT node before parsing its
2293 condition so that STMT_LINENO refers to the line
2294 containing the "while", and not the line containing
2295 the close-parenthesis.
2297 c_begin_while_stmt returns the WHILE_STMT node, which
2298 we later pass to c_finish_while_stmt_cond to fill
2299 in the condition and other tidbits. */
2302 $<ttype>$ = c_begin_while_stmt (); }
2304 { $4 = truthvalue_conversion ($4);
2305 c_finish_while_stmt_cond (truthvalue_conversion ($4),
2307 $<ttype>$ = add_stmt ($<ttype>2); }
2308 c99_block_lineno_labeled_stmt
2309 { RECHAIN_STMTS ($<ttype>6, WHILE_BODY ($<ttype>6)); }
2312 { DO_COND ($1) = truthvalue_conversion ($3); }
2313 | do_stmt_start error
2316 { $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
2317 NULL_TREE, NULL_TREE);
2318 add_stmt ($<ttype>$); }
2321 RECHAIN_STMTS ($<ttype>2, FOR_INIT_STMT ($<ttype>2)); }
2324 FOR_COND ($<ttype>2) = truthvalue_conversion ($6); }
2326 { FOR_EXPR ($<ttype>2) = $9; }
2327 c99_block_lineno_labeled_stmt
2328 { RECHAIN_STMTS ($<ttype>2, FOR_BODY ($<ttype>2)); }
2329 | SWITCH '(' expr ')'
2331 $<ttype>$ = c_start_case ($3); }
2332 c99_block_lineno_labeled_stmt
2333 { c_finish_case (); }
2338 { add_stmt (build_stmt (EXPR_STMT, $1)); }
2340 { check_for_loop_decls (); }
2343 /* Parse a single real statement, not including any labels. */
2346 { stmt_count++; $$ = $1; }
2349 $$ = c_expand_expr_stmt ($1); }
2350 | c99_block_start select_or_iter_stmt c99_block_end
2352 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2356 $$ = add_stmt (build_break_stmt ()); }
2359 $$ = add_stmt (build_continue_stmt ()); }
2362 $$ = c_expand_return (NULL_TREE); }
2365 $$ = c_expand_return ($2); }
2366 | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
2368 $$ = simple_asm_stmt ($4); }
2369 /* This is the case with just output operands. */
2370 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
2372 $$ = build_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
2373 /* This is the case with input operands as well. */
2374 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2375 asm_operands ')' ';'
2377 $$ = build_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
2378 /* This is the case with clobbered registers as well. */
2379 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2380 asm_operands ':' asm_clobbers ')' ';'
2382 $$ = build_asm_stmt ($2, $4, $6, $8, $10); }
2383 | GOTO identifier ';'
2386 decl = lookup_label ($2);
2389 TREE_USED (decl) = 1;
2390 $$ = add_stmt (build_stmt (GOTO_STMT, decl));
2397 pedwarn ("ISO C forbids `goto *expr;'");
2399 $3 = convert (ptr_type_node, $3);
2400 $$ = add_stmt (build_stmt (GOTO_STMT, $3)); }
2405 /* Any kind of label, including jump labels and case labels.
2406 ANSI C accepts labels only before statements, but we allow them
2407 also at the end of a compound statement. */
2409 label: CASE expr_no_commas ':'
2411 $$ = do_case ($2, NULL_TREE); }
2412 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
2414 $$ = do_case ($2, $4); }
2417 $$ = do_case (NULL_TREE, NULL_TREE); }
2418 | identifier save_filename save_lineno ':' maybe_attribute
2419 { tree label = define_label ($2, $3, $1);
2423 decl_attributes (&label, $5, 0);
2424 $$ = add_stmt (build_stmt (LABEL_STMT, label));
2431 /* Either a type-qualifier or nothing. First thing in an `asm' statement. */
2435 { emit_line_note (input_filename, lineno);
2438 { emit_line_note (input_filename, lineno); }
2447 /* These are the operands other than the first string and colon
2448 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
2449 asm_operands: /* empty */
2451 | nonnull_asm_operands
2454 nonnull_asm_operands:
2456 | nonnull_asm_operands ',' asm_operand
2457 { $$ = chainon ($1, $3); }
2462 { $$ = build_tree_list (build_tree_list (NULL_TREE, $1), $3); }
2463 | '[' identifier ']' STRING '(' expr ')'
2464 { $$ = build_tree_list (build_tree_list ($2, $4), $6); }
2469 { $$ = tree_cons (NULL_TREE, combine_strings ($1), NULL_TREE); }
2470 | asm_clobbers ',' string
2471 { $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
2474 /* This is what appears inside the parens in a function declarator.
2475 Its value is a list of ..._TYPE nodes. Attributes must appear here
2476 to avoid a conflict with their appearance after an open parenthesis
2477 in an abstract declarator, as in
2478 "void bar (int (__attribute__((__mode__(SI))) int foo));". */
2482 clear_parm_order ();
2483 declare_parm_level (0); }
2486 parmlist_tags_warning ();
2487 poplevel (0, 0, 0); }
2495 pedwarn ("ISO C forbids forward parameter declarations");
2496 /* Mark the forward decls as such. */
2497 for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
2498 TREE_ASM_WRITTEN (parm) = 1;
2499 clear_parm_order (); }
2501 { /* Dummy action so attributes are in known place
2502 on parser stack. */ }
2506 { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
2509 /* This is what appears inside the parens in a function declarator.
2510 Is value is represented in the format that grokdeclarator expects. */
2511 parmlist_2: /* empty */
2512 { $$ = get_parm_info (0); }
2514 { $$ = get_parm_info (0);
2515 /* Gcc used to allow this as an extension. However, it does
2516 not work for all targets, and thus has been disabled.
2517 Also, since func (...) and func () are indistinguishable,
2518 it caused problems with the code in expand_builtin which
2519 tries to verify that BUILT_IN_NEXT_ARG is being used
2521 error ("ISO C requires a named argument before `...'");
2524 { $$ = get_parm_info (1); }
2525 | parms ',' ELLIPSIS
2526 { $$ = get_parm_info (0); }
2531 { push_parm_decl ($1); }
2533 { push_parm_decl ($3); }
2536 /* A single parameter declaration or parameter type name,
2537 as found in a parmlist. */
2539 declspecs_ts setspecs parm_declarator maybe_attribute
2540 { $$ = build_tree_list (build_tree_list (current_declspecs,
2542 chainon ($4, all_prefix_attributes));
2543 POP_DECLSPEC_STACK; }
2544 | declspecs_ts setspecs notype_declarator maybe_attribute
2545 { $$ = build_tree_list (build_tree_list (current_declspecs,
2547 chainon ($4, all_prefix_attributes));
2548 POP_DECLSPEC_STACK; }
2549 | declspecs_ts setspecs absdcl_maybe_attribute
2551 POP_DECLSPEC_STACK; }
2552 | declspecs_nots setspecs notype_declarator maybe_attribute
2553 { $$ = build_tree_list (build_tree_list (current_declspecs,
2555 chainon ($4, all_prefix_attributes));
2556 POP_DECLSPEC_STACK; }
2558 | declspecs_nots setspecs absdcl_maybe_attribute
2560 POP_DECLSPEC_STACK; }
2563 /* The first parm, which must suck attributes from off the top of the parser
2566 declspecs_ts_nosa setspecs_fp parm_declarator maybe_attribute
2567 { $$ = build_tree_list (build_tree_list (current_declspecs,
2569 chainon ($4, all_prefix_attributes));
2570 POP_DECLSPEC_STACK; }
2571 | declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
2572 { $$ = build_tree_list (build_tree_list (current_declspecs,
2574 chainon ($4, all_prefix_attributes));
2575 POP_DECLSPEC_STACK; }
2576 | declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
2578 POP_DECLSPEC_STACK; }
2579 | declspecs_nots_nosa setspecs_fp notype_declarator maybe_attribute
2580 { $$ = build_tree_list (build_tree_list (current_declspecs,
2582 chainon ($4, all_prefix_attributes));
2583 POP_DECLSPEC_STACK; }
2585 | declspecs_nots_nosa setspecs_fp absdcl_maybe_attribute
2587 POP_DECLSPEC_STACK; }
2592 { prefix_attributes = chainon (prefix_attributes, $<ttype>-2);
2593 all_prefix_attributes = prefix_attributes; }
2596 /* This is used in a function definition
2597 where either a parmlist or an identifier list is ok.
2598 Its value is a list of ..._TYPE nodes or a list of identifiers. */
2599 parmlist_or_identifiers:
2602 clear_parm_order ();
2603 declare_parm_level (1); }
2604 parmlist_or_identifiers_1
2606 parmlist_tags_warning ();
2607 poplevel (0, 0, 0); }
2610 parmlist_or_identifiers_1:
2614 for (t = $1; t; t = TREE_CHAIN (t))
2615 if (TREE_VALUE (t) == NULL_TREE)
2616 error ("`...' in old-style identifier list");
2617 $$ = tree_cons (NULL_TREE, NULL_TREE, $1);
2619 /* Make sure we have a parmlist after attributes. */
2621 && (TREE_CODE ($$) != TREE_LIST
2622 || TREE_PURPOSE ($$) == 0
2623 || TREE_CODE (TREE_PURPOSE ($$)) != PARM_DECL))
2628 /* A nonempty list of identifiers. */
2631 { $$ = build_tree_list (NULL_TREE, $1); }
2632 | identifiers ',' IDENTIFIER
2633 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2636 /* A nonempty list of identifiers, including typenames. */
2637 identifiers_or_typenames:
2639 { $$ = build_tree_list (NULL_TREE, $1); }
2640 | identifiers_or_typenames ',' identifier
2641 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2646 { $$ = SAVE_WARN_FLAGS();
2648 warn_pointer_arith = 0;
2649 warn_traditional = 0; }
2653 /* Objective-C productions. */
2663 if (objc_implementation_context)
2665 finish_class (objc_implementation_context);
2666 objc_ivar_chain = NULL_TREE;
2667 objc_implementation_context = NULL_TREE;
2670 warning ("`@end' must appear in an implementation context");
2674 /* A nonempty list of identifiers. */
2677 { $$ = build_tree_list (NULL_TREE, $1); }
2678 | identifier_list ',' identifier
2679 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2683 CLASS identifier_list ';'
2685 objc_declare_class ($2);
2689 ALIAS identifier identifier ';'
2691 objc_declare_alias ($2, $3);
2695 INTERFACE identifier protocolrefs '{'
2697 objc_interface_context = objc_ivar_context
2698 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2699 objc_public_flag = 0;
2703 continue_class (objc_interface_context);
2708 finish_class (objc_interface_context);
2709 objc_interface_context = NULL_TREE;
2712 | INTERFACE identifier protocolrefs
2714 objc_interface_context
2715 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2716 continue_class (objc_interface_context);
2721 finish_class (objc_interface_context);
2722 objc_interface_context = NULL_TREE;
2725 | INTERFACE identifier ':' identifier protocolrefs '{'
2727 objc_interface_context = objc_ivar_context
2728 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2729 objc_public_flag = 0;
2733 continue_class (objc_interface_context);
2738 finish_class (objc_interface_context);
2739 objc_interface_context = NULL_TREE;
2742 | INTERFACE identifier ':' identifier protocolrefs
2744 objc_interface_context
2745 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2746 continue_class (objc_interface_context);
2751 finish_class (objc_interface_context);
2752 objc_interface_context = NULL_TREE;
2755 | IMPLEMENTATION identifier '{'
2757 objc_implementation_context = objc_ivar_context
2758 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2759 objc_public_flag = 0;
2764 = continue_class (objc_implementation_context);
2767 | IMPLEMENTATION identifier
2769 objc_implementation_context
2770 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2772 = continue_class (objc_implementation_context);
2775 | IMPLEMENTATION identifier ':' identifier '{'
2777 objc_implementation_context = objc_ivar_context
2778 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2779 objc_public_flag = 0;
2784 = continue_class (objc_implementation_context);
2787 | IMPLEMENTATION identifier ':' identifier
2789 objc_implementation_context
2790 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2792 = continue_class (objc_implementation_context);
2795 | INTERFACE identifier '(' identifier ')' protocolrefs
2797 objc_interface_context
2798 = start_class (CATEGORY_INTERFACE_TYPE, $2, $4, $6);
2799 continue_class (objc_interface_context);
2804 finish_class (objc_interface_context);
2805 objc_interface_context = NULL_TREE;
2808 | IMPLEMENTATION identifier '(' identifier ')'
2810 objc_implementation_context
2811 = start_class (CATEGORY_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2813 = continue_class (objc_implementation_context);
2818 PROTOCOL identifier protocolrefs
2820 objc_pq_context = 1;
2821 objc_interface_context
2822 = start_protocol(PROTOCOL_INTERFACE_TYPE, $2, $3);
2826 objc_pq_context = 0;
2827 finish_protocol(objc_interface_context);
2828 objc_interface_context = NULL_TREE;
2830 /* The @protocol forward-declaration production introduces a
2831 reduce/reduce conflict on ';', which should be resolved in
2832 favor of the production 'identifier_list -> identifier'. */
2833 | PROTOCOL identifier_list ';'
2835 objc_declare_protocols ($2);
2844 | non_empty_protocolrefs
2847 non_empty_protocolrefs:
2848 ARITHCOMPARE identifier_list ARITHCOMPARE
2850 if ($1 == LT_EXPR && $3 == GT_EXPR)
2858 ivar_decl_list visibility_spec ivar_decls
2863 PRIVATE { objc_public_flag = 2; }
2864 | PROTECTED { objc_public_flag = 0; }
2865 | PUBLIC { objc_public_flag = 1; }
2873 | ivar_decls ivar_decl ';'
2877 pedwarn ("extra semicolon in struct or union specified");
2882 /* There is a shift-reduce conflict here, because `components' may
2883 start with a `typename'. It happens that shifting (the default resolution)
2884 does the right thing, because it treats the `typename' as part of
2885 a `typed_typespecs'.
2887 It is possible that this same technique would allow the distinction
2888 between `notype_initdecls' and `initdecls' to be eliminated.
2889 But I am being cautious and not trying it. */
2892 declspecs_nosc_ts setspecs ivars
2894 POP_DECLSPEC_STACK; }
2895 | declspecs_nosc_nots setspecs ivars
2897 POP_DECLSPEC_STACK; }
2906 | ivars ',' maybe_resetattrs ivar_declarator
2912 $$ = add_instance_variable (objc_ivar_context,
2914 $1, current_declspecs,
2917 | declarator ':' expr_no_commas
2919 $$ = add_instance_variable (objc_ivar_context,
2921 $1, current_declspecs, $3);
2923 | ':' expr_no_commas
2925 $$ = add_instance_variable (objc_ivar_context,
2928 current_declspecs, $2);
2934 { objc_inherit_code = CLASS_METHOD_DECL; }
2936 { objc_inherit_code = INSTANCE_METHOD_DECL; }
2942 objc_pq_context = 1;
2943 if (!objc_implementation_context)
2944 fatal_error ("method definition not in class context");
2948 objc_pq_context = 0;
2949 if (objc_inherit_code == CLASS_METHOD_DECL)
2950 add_class_method (objc_implementation_context, $3);
2952 add_instance_method (objc_implementation_context, $3);
2953 start_method_def ($3);
2957 continue_method_def ();
2961 finish_method_def ();
2965 /* the reason for the strange actions in this rule
2966 is so that notype_initdecls when reached via datadef
2967 can find a valid list of type and sc specs in $0. */
2971 | {$<ttype>$ = NULL_TREE; } methodprotolist2
2974 methodprotolist2: /* eliminates a shift/reduce conflict */
2977 | methodprotolist2 methodproto
2978 | methodprotolist2 {$<ttype>$ = NULL_TREE; } datadef
2989 /* Remember protocol qualifiers in prototypes. */
2990 objc_pq_context = 1;
2994 /* Forget protocol qualifiers here. */
2995 objc_pq_context = 0;
2996 if (objc_inherit_code == CLASS_METHOD_DECL)
2997 add_class_method (objc_interface_context, $3);
2999 add_instance_method (objc_interface_context, $3);
3005 '(' typename ')' unaryselector
3007 $$ = build_method_decl (objc_inherit_code, $2, $4, NULL_TREE);
3012 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, NULL_TREE);
3015 | '(' typename ')' keywordselector optparmlist
3017 $$ = build_method_decl (objc_inherit_code, $2, $4, $5);
3020 | keywordselector optparmlist
3022 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, $2);
3026 /* "optarglist" assumes that start_method_def has already been called...
3027 if it is not, the "xdecls" will not be placed in the proper scope */
3034 /* to get around the following situation: "int foo (int a) int b; {}" that
3035 is synthesized when parsing "- a:a b:b; id c; id d; { ... }" */
3050 declspecs_ts setspecs myparms ';'
3051 { POP_DECLSPEC_STACK; }
3053 { shadow_tag ($1); }
3054 | declspecs_nots ';'
3055 { pedwarn ("empty declaration"); }
3060 { push_parm_decl ($1); }
3061 | myparms ',' myparm
3062 { push_parm_decl ($3); }
3065 /* A single parameter declaration or parameter type name,
3066 as found in a parmlist. DOES NOT ALLOW AN INITIALIZER OR ASMSPEC */
3069 parm_declarator maybe_attribute
3070 { $$ = build_tree_list (build_tree_list (current_declspecs,
3072 chainon ($2, all_prefix_attributes)); }
3073 | notype_declarator maybe_attribute
3074 { $$ = build_tree_list (build_tree_list (current_declspecs,
3076 chainon ($2, all_prefix_attributes)); }
3077 | absdcl_maybe_attribute
3088 /* oh what a kludge! */
3089 $$ = objc_ellipsis_node;
3097 /* returns a tree list node generated by get_parm_info */
3110 | keywordselector keyworddecl
3112 $$ = chainon ($1, $2);
3125 ENUM | STRUCT | UNION | IF | ELSE | WHILE | DO | FOR
3126 | SWITCH | CASE | DEFAULT | BREAK | CONTINUE | RETURN
3127 | GOTO | ASM_KEYWORD | SIZEOF | TYPEOF | ALIGNOF
3128 | TYPESPEC | TYPE_QUAL
3132 selector ':' '(' typename ')' identifier
3134 $$ = build_keyword_decl ($1, $4, $6);
3137 | selector ':' identifier
3139 $$ = build_keyword_decl ($1, NULL_TREE, $3);
3142 | ':' '(' typename ')' identifier
3144 $$ = build_keyword_decl (NULL_TREE, $3, $5);
3149 $$ = build_keyword_decl (NULL_TREE, NULL_TREE, $2);
3160 | keywordarglist keywordarg
3162 $$ = chainon ($1, $2);
3170 if (TREE_CHAIN ($1) == NULL_TREE)
3171 /* just return the expr., remove a level of indirection */
3172 $$ = TREE_VALUE ($1);
3174 /* we have a comma expr., we will collapse later */
3180 selector ':' keywordexpr
3182 $$ = build_tree_list ($1, $3);
3186 $$ = build_tree_list (NULL_TREE, $2);
3194 $$ = get_class_reference ($1);
3200 { objc_receiver_context = 1; }
3202 { objc_receiver_context = 0; }
3205 $$ = build_tree_list ($3, $5);
3216 | keywordnamelist keywordname
3218 $$ = chainon ($1, $2);
3225 $$ = build_tree_list ($1, NULL_TREE);
3229 $$ = build_tree_list (NULL_TREE, NULL_TREE);
3234 SELECTOR '(' selectorarg ')'
3241 PROTOCOL '(' identifier ')'
3247 /* extension to support C-structures in the archiver */
3250 ENCODE '(' typename ')'
3252 $$ = groktypename ($3);
3259 /* yylex() is a thin wrapper around c_lex(), all it does is translate
3260 cpplib.h's token codes into yacc's token codes. */
3262 static enum cpp_ttype last_token;
3264 /* The reserved keyword table. */
3268 ENUM_BITFIELD(rid) rid : 16;
3269 unsigned int disable : 16;
3272 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
3274 #define D_C89 0x01 /* not in C89 */
3275 #define D_EXT 0x02 /* GCC extension */
3276 #define D_EXT89 0x04 /* GCC extension incorporated in C99 */
3277 #define D_OBJC 0x08 /* Objective C only */
3279 static const struct resword reswords[] =
3281 { "_Bool", RID_BOOL, 0 },
3282 { "_Complex", RID_COMPLEX, 0 },
3283 { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
3284 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
3285 { "__alignof", RID_ALIGNOF, 0 },
3286 { "__alignof__", RID_ALIGNOF, 0 },
3287 { "__asm", RID_ASM, 0 },
3288 { "__asm__", RID_ASM, 0 },
3289 { "__attribute", RID_ATTRIBUTE, 0 },
3290 { "__attribute__", RID_ATTRIBUTE, 0 },
3291 { "__bounded", RID_BOUNDED, 0 },
3292 { "__bounded__", RID_BOUNDED, 0 },
3293 { "__builtin_choose_expr", RID_CHOOSE_EXPR, 0 },
3294 { "__builtin_types_compatible_p", RID_TYPES_COMPATIBLE_P, 0 },
3295 { "__builtin_va_arg", RID_VA_ARG, 0 },
3296 { "__complex", RID_COMPLEX, 0 },
3297 { "__complex__", RID_COMPLEX, 0 },
3298 { "__const", RID_CONST, 0 },
3299 { "__const__", RID_CONST, 0 },
3300 { "__extension__", RID_EXTENSION, 0 },
3301 { "__func__", RID_C99_FUNCTION_NAME, 0 },
3302 { "__imag", RID_IMAGPART, 0 },
3303 { "__imag__", RID_IMAGPART, 0 },
3304 { "__inline", RID_INLINE, 0 },
3305 { "__inline__", RID_INLINE, 0 },
3306 { "__label__", RID_LABEL, 0 },
3307 { "__ptrbase", RID_PTRBASE, 0 },
3308 { "__ptrbase__", RID_PTRBASE, 0 },
3309 { "__ptrextent", RID_PTREXTENT, 0 },
3310 { "__ptrextent__", RID_PTREXTENT, 0 },
3311 { "__ptrvalue", RID_PTRVALUE, 0 },
3312 { "__ptrvalue__", RID_PTRVALUE, 0 },
3313 { "__real", RID_REALPART, 0 },
3314 { "__real__", RID_REALPART, 0 },
3315 { "__restrict", RID_RESTRICT, 0 },
3316 { "__restrict__", RID_RESTRICT, 0 },
3317 { "__signed", RID_SIGNED, 0 },
3318 { "__signed__", RID_SIGNED, 0 },
3319 { "__typeof", RID_TYPEOF, 0 },
3320 { "__typeof__", RID_TYPEOF, 0 },
3321 { "__unbounded", RID_UNBOUNDED, 0 },
3322 { "__unbounded__", RID_UNBOUNDED, 0 },
3323 { "__volatile", RID_VOLATILE, 0 },
3324 { "__volatile__", RID_VOLATILE, 0 },
3325 { "asm", RID_ASM, D_EXT },
3326 { "auto", RID_AUTO, 0 },
3327 { "break", RID_BREAK, 0 },
3328 { "case", RID_CASE, 0 },
3329 { "char", RID_CHAR, 0 },
3330 { "const", RID_CONST, 0 },
3331 { "continue", RID_CONTINUE, 0 },
3332 { "default", RID_DEFAULT, 0 },
3333 { "do", RID_DO, 0 },
3334 { "double", RID_DOUBLE, 0 },
3335 { "else", RID_ELSE, 0 },
3336 { "enum", RID_ENUM, 0 },
3337 { "extern", RID_EXTERN, 0 },
3338 { "float", RID_FLOAT, 0 },
3339 { "for", RID_FOR, 0 },
3340 { "goto", RID_GOTO, 0 },
3341 { "if", RID_IF, 0 },
3342 { "inline", RID_INLINE, D_EXT89 },
3343 { "int", RID_INT, 0 },
3344 { "long", RID_LONG, 0 },
3345 { "register", RID_REGISTER, 0 },
3346 { "restrict", RID_RESTRICT, D_C89 },
3347 { "return", RID_RETURN, 0 },
3348 { "short", RID_SHORT, 0 },
3349 { "signed", RID_SIGNED, 0 },
3350 { "sizeof", RID_SIZEOF, 0 },
3351 { "static", RID_STATIC, 0 },
3352 { "struct", RID_STRUCT, 0 },
3353 { "switch", RID_SWITCH, 0 },
3354 { "typedef", RID_TYPEDEF, 0 },
3355 { "typeof", RID_TYPEOF, D_EXT },
3356 { "union", RID_UNION, 0 },
3357 { "unsigned", RID_UNSIGNED, 0 },
3358 { "void", RID_VOID, 0 },
3359 { "volatile", RID_VOLATILE, 0 },
3360 { "while", RID_WHILE, 0 },
3362 { "id", RID_ID, D_OBJC },
3364 /* These objc keywords are recognized only immediately after
3366 { "class", RID_AT_CLASS, D_OBJC },
3367 { "compatibility_alias", RID_AT_ALIAS, D_OBJC },
3368 { "defs", RID_AT_DEFS, D_OBJC },
3369 { "encode", RID_AT_ENCODE, D_OBJC },
3370 { "end", RID_AT_END, D_OBJC },
3371 { "implementation", RID_AT_IMPLEMENTATION, D_OBJC },
3372 { "interface", RID_AT_INTERFACE, D_OBJC },
3373 { "private", RID_AT_PRIVATE, D_OBJC },
3374 { "protected", RID_AT_PROTECTED, D_OBJC },
3375 { "protocol", RID_AT_PROTOCOL, D_OBJC },
3376 { "public", RID_AT_PUBLIC, D_OBJC },
3377 { "selector", RID_AT_SELECTOR, D_OBJC },
3379 /* These are recognized only in protocol-qualifier context
3381 { "bycopy", RID_BYCOPY, D_OBJC },
3382 { "byref", RID_BYREF, D_OBJC },
3383 { "in", RID_IN, D_OBJC },
3384 { "inout", RID_INOUT, D_OBJC },
3385 { "oneway", RID_ONEWAY, D_OBJC },
3386 { "out", RID_OUT, D_OBJC },
3389 #define N_reswords (sizeof reswords / sizeof (struct resword))
3391 /* Table mapping from RID_* constants to yacc token numbers.
3392 Unfortunately we have to have entries for all the keywords in all
3394 static const short rid_to_yy[RID_MAX] =
3396 /* RID_STATIC */ STATIC,
3397 /* RID_UNSIGNED */ TYPESPEC,
3398 /* RID_LONG */ TYPESPEC,
3399 /* RID_CONST */ TYPE_QUAL,
3400 /* RID_EXTERN */ SCSPEC,
3401 /* RID_REGISTER */ SCSPEC,
3402 /* RID_TYPEDEF */ SCSPEC,
3403 /* RID_SHORT */ TYPESPEC,
3404 /* RID_INLINE */ SCSPEC,
3405 /* RID_VOLATILE */ TYPE_QUAL,
3406 /* RID_SIGNED */ TYPESPEC,
3407 /* RID_AUTO */ SCSPEC,
3408 /* RID_RESTRICT */ TYPE_QUAL,
3411 /* RID_BOUNDED */ TYPE_QUAL,
3412 /* RID_UNBOUNDED */ TYPE_QUAL,
3413 /* RID_COMPLEX */ TYPESPEC,
3417 /* RID_VIRTUAL */ 0,
3418 /* RID_EXPLICIT */ 0,
3420 /* RID_MUTABLE */ 0,
3423 /* RID_IN */ TYPE_QUAL,
3424 /* RID_OUT */ TYPE_QUAL,
3425 /* RID_INOUT */ TYPE_QUAL,
3426 /* RID_BYCOPY */ TYPE_QUAL,
3427 /* RID_BYREF */ TYPE_QUAL,
3428 /* RID_ONEWAY */ TYPE_QUAL,
3431 /* RID_INT */ TYPESPEC,
3432 /* RID_CHAR */ TYPESPEC,
3433 /* RID_FLOAT */ TYPESPEC,
3434 /* RID_DOUBLE */ TYPESPEC,
3435 /* RID_VOID */ TYPESPEC,
3436 /* RID_ENUM */ ENUM,
3437 /* RID_STRUCT */ STRUCT,
3438 /* RID_UNION */ UNION,
3440 /* RID_ELSE */ ELSE,
3441 /* RID_WHILE */ WHILE,
3444 /* RID_SWITCH */ SWITCH,
3445 /* RID_CASE */ CASE,
3446 /* RID_DEFAULT */ DEFAULT,
3447 /* RID_BREAK */ BREAK,
3448 /* RID_CONTINUE */ CONTINUE,
3449 /* RID_RETURN */ RETURN,
3450 /* RID_GOTO */ GOTO,
3451 /* RID_SIZEOF */ SIZEOF,
3454 /* RID_ASM */ ASM_KEYWORD,
3455 /* RID_TYPEOF */ TYPEOF,
3456 /* RID_ALIGNOF */ ALIGNOF,
3457 /* RID_ATTRIBUTE */ ATTRIBUTE,
3458 /* RID_VA_ARG */ VA_ARG,
3459 /* RID_EXTENSION */ EXTENSION,
3460 /* RID_IMAGPART */ IMAGPART,
3461 /* RID_REALPART */ REALPART,
3462 /* RID_LABEL */ LABEL,
3463 /* RID_PTRBASE */ PTR_BASE,
3464 /* RID_PTREXTENT */ PTR_EXTENT,
3465 /* RID_PTRVALUE */ PTR_VALUE,
3467 /* RID_CHOOSE_EXPR */ CHOOSE_EXPR,
3468 /* RID_TYPES_COMPATIBLE_P */ TYPES_COMPATIBLE_P,
3470 /* RID_FUNCTION_NAME */ STRING_FUNC_NAME,
3471 /* RID_PRETTY_FUNCTION_NAME */ STRING_FUNC_NAME,
3472 /* RID_C99_FUNCTION_NAME */ VAR_FUNC_NAME,
3475 /* RID_BOOL */ TYPESPEC,
3479 /* RID_PRIVATE */ 0,
3480 /* RID_PROTECTED */ 0,
3481 /* RID_TEMPLATE */ 0,
3486 /* RID_NAMESPACE */ 0,
3488 /* RID_OPERATOR */ 0,
3493 /* RID_TYPENAME */ 0,
3498 /* RID_CONSTCAST */ 0,
3499 /* RID_DYNCAST */ 0,
3500 /* RID_REINTCAST */ 0,
3501 /* RID_STATCAST */ 0,
3503 /* alternate spellings */
3517 /* RID_ID */ OBJECTNAME,
3518 /* RID_AT_ENCODE */ ENCODE,
3519 /* RID_AT_END */ END,
3520 /* RID_AT_CLASS */ CLASS,
3521 /* RID_AT_ALIAS */ ALIAS,
3522 /* RID_AT_DEFS */ DEFS,
3523 /* RID_AT_PRIVATE */ PRIVATE,
3524 /* RID_AT_PROTECTED */ PROTECTED,
3525 /* RID_AT_PUBLIC */ PUBLIC,
3526 /* RID_AT_PROTOCOL */ PROTOCOL,
3527 /* RID_AT_SELECTOR */ SELECTOR,
3528 /* RID_AT_INTERFACE */ INTERFACE,
3529 /* RID_AT_IMPLEMENTATION */ IMPLEMENTATION
3537 int mask = (flag_isoc99 ? 0 : D_C89)
3538 | (flag_no_asm ? (flag_isoc99 ? D_EXT : D_EXT|D_EXT89) : 0);
3540 if (c_language != clk_objective_c)
3543 /* It is not necessary to register ridpointers as a GC root, because
3544 all the trees it points to are permanently interned in the
3545 get_identifier hash anyway. */
3546 ridpointers = (tree *) xcalloc ((int) RID_MAX, sizeof (tree));
3547 for (i = 0; i < N_reswords; i++)
3549 /* If a keyword is disabled, do not enter it into the table
3550 and so create a canonical spelling that isn't a keyword. */
3551 if (reswords[i].disable & mask)
3554 id = get_identifier (reswords[i].word);
3555 C_RID_CODE (id) = reswords[i].rid;
3556 C_IS_RESERVED_WORD (id) = 1;
3557 ridpointers [(int) reswords[i].rid] = id;
3561 #define NAME(type) cpp_type2name (type)
3567 const char *string = _(msgid);
3569 if (last_token == CPP_EOF)
3570 error ("%s at end of input", string);
3571 else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
3573 unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
3574 const char *const ell = (last_token == CPP_CHAR) ? "" : "L";
3575 if (val <= UCHAR_MAX && ISGRAPH (val))
3576 error ("%s before %s'%c'", string, ell, val);
3578 error ("%s before %s'\\x%x'", string, ell, val);
3580 else if (last_token == CPP_STRING
3581 || last_token == CPP_WSTRING)
3582 error ("%s before string constant", string);
3583 else if (last_token == CPP_NUMBER)
3584 error ("%s before numeric constant", string);
3585 else if (last_token == CPP_NAME)
3586 error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
3588 error ("%s before '%s' token", string, NAME(last_token));
3597 int objc_force_identifier = objc_need_raw_identifier;
3598 OBJC_NEED_RAW_IDENTIFIER (0);
3601 if (C_IS_RESERVED_WORD (yylval.ttype))
3603 enum rid rid_code = C_RID_CODE (yylval.ttype);
3606 /* Turn non-typedefed refs to "id" into plain identifiers; this
3607 allows constructs like "void foo(id id);" to work. */
3608 if (rid_code == RID_ID)
3610 decl = lookup_name (yylval.ttype);
3611 if (decl == NULL_TREE || TREE_CODE (decl) != TYPE_DECL)
3615 if (!OBJC_IS_AT_KEYWORD (rid_code)
3616 && (!OBJC_IS_PQ_KEYWORD (rid_code) || objc_pq_context))
3619 int yycode = rid_to_yy[(int) rid_code];
3620 if (yycode == STRING_FUNC_NAME)
3622 /* __FUNCTION__ and __PRETTY_FUNCTION__ get converted
3623 to string constants. */
3624 const char *name = fname_string (rid_code);
3626 yylval.ttype = build_string (strlen (name) + 1, name);
3627 C_ARTIFICIAL_STRING_P (yylval.ttype) = 1;
3628 last_token = CPP_STRING; /* so yyerror won't choke */
3632 /* Return the canonical spelling for this keyword. */
3633 yylval.ttype = ridpointers[(int) rid_code];
3638 decl = lookup_name (yylval.ttype);
3641 if (TREE_CODE (decl) == TYPE_DECL)
3647 tree objc_interface_decl = is_class_name (yylval.ttype);
3648 /* ObjC class names are in the same namespace as variables and
3649 typedefs, and hence are shadowed by local declarations. */
3650 if (objc_interface_decl
3651 && (global_bindings_p ()
3652 || (!objc_force_identifier && !decl)))
3654 yylval.ttype = objc_interface_decl;
3668 last_token = c_lex (&yylval.ttype);
3671 case CPP_EQ: return '=';
3672 case CPP_NOT: return '!';
3673 case CPP_GREATER: yylval.code = GT_EXPR; return ARITHCOMPARE;
3674 case CPP_LESS: yylval.code = LT_EXPR; return ARITHCOMPARE;
3675 case CPP_PLUS: yylval.code = PLUS_EXPR; return '+';
3676 case CPP_MINUS: yylval.code = MINUS_EXPR; return '-';
3677 case CPP_MULT: yylval.code = MULT_EXPR; return '*';
3678 case CPP_DIV: yylval.code = TRUNC_DIV_EXPR; return '/';
3679 case CPP_MOD: yylval.code = TRUNC_MOD_EXPR; return '%';
3680 case CPP_AND: yylval.code = BIT_AND_EXPR; return '&';
3681 case CPP_OR: yylval.code = BIT_IOR_EXPR; return '|';
3682 case CPP_XOR: yylval.code = BIT_XOR_EXPR; return '^';
3683 case CPP_RSHIFT: yylval.code = RSHIFT_EXPR; return RSHIFT;
3684 case CPP_LSHIFT: yylval.code = LSHIFT_EXPR; return LSHIFT;
3686 case CPP_COMPL: return '~';
3687 case CPP_AND_AND: return ANDAND;
3688 case CPP_OR_OR: return OROR;
3689 case CPP_QUERY: return '?';
3690 case CPP_OPEN_PAREN: return '(';
3691 case CPP_EQ_EQ: yylval.code = EQ_EXPR; return EQCOMPARE;
3692 case CPP_NOT_EQ: yylval.code = NE_EXPR; return EQCOMPARE;
3693 case CPP_GREATER_EQ:yylval.code = GE_EXPR; return ARITHCOMPARE;
3694 case CPP_LESS_EQ: yylval.code = LE_EXPR; return ARITHCOMPARE;
3696 case CPP_PLUS_EQ: yylval.code = PLUS_EXPR; return ASSIGN;
3697 case CPP_MINUS_EQ: yylval.code = MINUS_EXPR; return ASSIGN;
3698 case CPP_MULT_EQ: yylval.code = MULT_EXPR; return ASSIGN;
3699 case CPP_DIV_EQ: yylval.code = TRUNC_DIV_EXPR; return ASSIGN;
3700 case CPP_MOD_EQ: yylval.code = TRUNC_MOD_EXPR; return ASSIGN;
3701 case CPP_AND_EQ: yylval.code = BIT_AND_EXPR; return ASSIGN;
3702 case CPP_OR_EQ: yylval.code = BIT_IOR_EXPR; return ASSIGN;
3703 case CPP_XOR_EQ: yylval.code = BIT_XOR_EXPR; return ASSIGN;
3704 case CPP_RSHIFT_EQ: yylval.code = RSHIFT_EXPR; return ASSIGN;
3705 case CPP_LSHIFT_EQ: yylval.code = LSHIFT_EXPR; return ASSIGN;
3707 case CPP_OPEN_SQUARE: return '[';
3708 case CPP_CLOSE_SQUARE: return ']';
3709 case CPP_OPEN_BRACE: return '{';
3710 case CPP_CLOSE_BRACE: return '}';
3711 case CPP_ELLIPSIS: return ELLIPSIS;
3713 case CPP_PLUS_PLUS: return PLUSPLUS;
3714 case CPP_MINUS_MINUS: return MINUSMINUS;
3715 case CPP_DEREF: return POINTSAT;
3716 case CPP_DOT: return '.';
3718 /* The following tokens may affect the interpretation of any
3719 identifiers following, if doing Objective-C. */
3720 case CPP_COLON: OBJC_NEED_RAW_IDENTIFIER (0); return ':';
3721 case CPP_COMMA: OBJC_NEED_RAW_IDENTIFIER (0); return ',';
3722 case CPP_CLOSE_PAREN: OBJC_NEED_RAW_IDENTIFIER (0); return ')';
3723 case CPP_SEMICOLON: OBJC_NEED_RAW_IDENTIFIER (0); return ';';
3729 return yylexname ();
3740 /* This token is Objective-C specific. It gives the next token
3741 special significance. */
3746 enum cpp_ttype after_at_type;
3748 after_at_type = c_lex (&after_at);
3750 if (after_at_type == CPP_NAME
3751 && C_IS_RESERVED_WORD (after_at)
3752 && OBJC_IS_AT_KEYWORD (C_RID_CODE (after_at)))
3754 yylval.ttype = after_at;
3755 last_token = after_at_type;
3756 return rid_to_yy [(int) C_RID_CODE (after_at)];
3758 _cpp_backup_tokens (parse_in, 1);
3763 /* These tokens are C++ specific (and will not be generated
3764 in C mode, but let's be cautious). */
3766 case CPP_DEREF_STAR:
3772 /* These tokens should not survive translation phase 4. */
3775 error ("syntax error at '%s' token", NAME(last_token));
3788 timevar_push (TV_LEX);
3790 timevar_pop (TV_LEX);
3794 /* Sets the value of the 'yydebug' variable to VALUE.
3795 This is a function so we don't have to have YYDEBUG defined
3796 in order to build the compiler. */
3799 c_set_yydebug (value)
3805 warning ("YYDEBUG not defined");
3809 /* Function used when yydebug is set, to print a token in more detail. */
3812 yyprint (file, yychar, yyl)
3819 fprintf (file, " [%s]", NAME(last_token));
3830 if (IDENTIFIER_POINTER (t))
3831 fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
3835 fprintf (file, " %s", GET_MODE_NAME (TYPE_MODE (TREE_TYPE (t))));
3836 if (TREE_CODE (t) == INTEGER_CST)
3838 #if HOST_BITS_PER_WIDE_INT == 64
3839 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
3842 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
3849 #if HOST_BITS_PER_WIDE_INT != HOST_BITS_PER_INT
3855 TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
3860 /* This is not the ideal place to put these, but we have to get them out
3861 of c-lex.c because cp/lex.c has its own versions. */
3863 /* Return something to represent absolute declarators containing a *.
3864 TARGET is the absolute declarator that the * contains.
3865 TYPE_QUALS_ATTRS is a list of modifiers such as const or volatile
3866 to apply to the pointer type, represented as identifiers, possible mixed
3869 We return an INDIRECT_REF whose "contents" are TARGET (inside a TREE_LIST,
3870 if attributes are present) and whose type is the modifier list. */
3873 make_pointer_declarator (type_quals_attrs, target)
3874 tree type_quals_attrs, target;
3877 tree itarget = target;
3878 split_specs_attrs (type_quals_attrs, &quals, &attrs);
3879 if (attrs != NULL_TREE)
3880 itarget = tree_cons (attrs, target, NULL_TREE);
3881 return build1 (INDIRECT_REF, quals, itarget);