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 = c_common_truthvalue_conversion
570 (default_conversion ($1));
571 skip_evaluation += $1 == boolean_false_node; }
573 { skip_evaluation -= $1 == boolean_false_node;
574 $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
575 | expr_no_commas OROR
576 { $1 = c_common_truthvalue_conversion
577 (default_conversion ($1));
578 skip_evaluation += $1 == boolean_true_node; }
580 { skip_evaluation -= $1 == boolean_true_node;
581 $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
583 { $1 = c_common_truthvalue_conversion
584 (default_conversion ($1));
585 skip_evaluation += $1 == boolean_false_node; }
587 { skip_evaluation += (($1 == boolean_true_node)
588 - ($1 == boolean_false_node)); }
590 { skip_evaluation -= $1 == boolean_true_node;
591 $$ = build_conditional_expr ($1, $4, $7); }
594 pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
595 /* Make sure first operand is calculated only once. */
596 $<ttype>2 = save_expr ($1);
597 $1 = c_common_truthvalue_conversion
598 (default_conversion ($<ttype>2));
599 skip_evaluation += $1 == boolean_true_node; }
601 { skip_evaluation -= $1 == boolean_true_node;
602 $$ = build_conditional_expr ($1, $<ttype>2, $5); }
603 | expr_no_commas '=' expr_no_commas
605 $$ = build_modify_expr ($1, NOP_EXPR, $3);
606 class = TREE_CODE_CLASS (TREE_CODE ($$));
607 if (IS_EXPR_CODE_CLASS (class))
608 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
610 | expr_no_commas ASSIGN expr_no_commas
612 $$ = build_modify_expr ($1, $2, $3);
613 /* This inhibits warnings in
614 c_common_truthvalue_conversion. */
615 class = TREE_CODE_CLASS (TREE_CODE ($$));
616 if (IS_EXPR_CODE_CLASS (class))
617 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
624 if (yychar == YYEMPTY)
626 $$ = build_external_ref ($1, yychar == '(');
630 { $$ = combine_strings ($1); }
632 { $$ = fname_decl (C_RID_CODE ($$), $$); }
633 | '(' typename ')' '{'
634 { start_init (NULL_TREE, NULL, 0);
635 $2 = groktypename ($2);
636 really_start_incremental_init ($2); }
637 initlist_maybe_comma '}' %prec UNARY
638 { tree constructor = pop_init_level (0);
642 if (pedantic && ! flag_isoc99)
643 pedwarn ("ISO C89 forbids compound literals");
644 $$ = build_compound_literal (type, constructor);
647 { char class = TREE_CODE_CLASS (TREE_CODE ($2));
648 if (IS_EXPR_CODE_CLASS (class))
649 C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
652 { $$ = error_mark_node; }
653 | compstmt_primary_start compstmt_nostart ')'
654 { tree saved_last_tree;
657 pedwarn ("ISO C forbids braced-groups within expressions");
660 saved_last_tree = COMPOUND_BODY ($1);
661 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
662 last_tree = saved_last_tree;
663 TREE_CHAIN (last_tree) = NULL_TREE;
665 last_expr_type = void_type_node;
666 $$ = build1 (STMT_EXPR, last_expr_type, $1);
667 TREE_SIDE_EFFECTS ($$) = 1;
669 | compstmt_primary_start error ')'
672 last_tree = COMPOUND_BODY ($1);
673 TREE_CHAIN (last_tree) = NULL_TREE;
674 $$ = error_mark_node;
676 | primary '(' exprlist ')' %prec '.'
677 { $$ = build_function_call ($1, $3); }
678 | VA_ARG '(' expr_no_commas ',' typename ')'
679 { $$ = build_va_arg ($3, groktypename ($5)); }
681 | CHOOSE_EXPR '(' expr_no_commas ',' expr_no_commas ',' expr_no_commas ')'
687 if (TREE_CODE (c) != INTEGER_CST)
688 error ("first argument to __builtin_choose_expr not a constant");
689 $$ = integer_zerop (c) ? $7 : $5;
691 | TYPES_COMPATIBLE_P '(' typename ',' typename ')'
695 e1 = TYPE_MAIN_VARIANT (groktypename ($3));
696 e2 = TYPE_MAIN_VARIANT (groktypename ($5));
698 $$ = comptypes (e1, e2)
699 ? build_int_2 (1, 0) : build_int_2 (0, 0);
701 | primary '[' expr ']' %prec '.'
702 { $$ = build_array_ref ($1, $3); }
703 | primary '.' identifier
706 if (!is_public ($1, $3))
707 $$ = error_mark_node;
710 $$ = build_component_ref ($1, $3);
712 | primary POINTSAT identifier
714 tree expr = build_indirect_ref ($1, "->");
717 if (!is_public (expr, $3))
718 $$ = error_mark_node;
721 $$ = build_component_ref (expr, $3);
724 { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
726 { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
729 { $$ = build_message_expr ($1); }
731 { $$ = build_selector_expr ($1); }
733 { $$ = build_protocol_expr ($1); }
735 { $$ = build_encode_expr ($1); }
737 { $$ = build_objc_string_object ($1); }
741 /* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
747 static int last_lineno = 0;
748 static const char *last_input_filename = 0;
750 $$ = chainon ($1, $2);
752 if (warn_traditional && !in_system_header
753 && (lineno != last_lineno || !last_input_filename ||
754 strcmp (last_input_filename, input_filename)))
756 warning ("traditional C rejects string concatenation");
757 last_lineno = lineno;
758 last_input_filename = input_filename;
765 /* Produces an STRING_CST with perhaps more STRING_CSTs chained
766 onto it, which is to be read as an ObjC string object. */
770 | objc_string '@' STRING
771 { $$ = chainon ($1, $3); }
775 old_style_parm_decls:
779 /* ... is used here to indicate a varargs function. */
782 pedwarn ("ISO C does not permit use of `varargs.h'"); }
785 /* The following are analogous to lineno_decl, decls and decl
786 except that they do not allow nested functions.
787 They are used for old-style parm decls. */
789 save_filename save_lineno datadecl
796 | datadecls lineno_datadecl
797 | lineno_datadecl errstmt
800 /* We don't allow prefix attributes here because they cause reduce/reduce
801 conflicts: we can't know whether we're parsing a function decl with
802 attribute suffix, or function defn with attribute prefix on first old
805 declspecs_ts_nosa setspecs initdecls ';'
806 { POP_DECLSPEC_STACK; }
807 | declspecs_nots_nosa setspecs notype_initdecls ';'
808 { POP_DECLSPEC_STACK; }
809 | declspecs_ts_nosa ';'
810 { shadow_tag_warned ($1, 1);
811 pedwarn ("empty declaration"); }
812 | declspecs_nots_nosa ';'
813 { pedwarn ("empty declaration"); }
816 /* This combination which saves a lineno before a decl
817 is the normal thing to use, rather than decl itself.
818 This is to avoid shift/reduce conflicts in contexts
819 where statement labels are allowed. */
821 save_filename save_lineno decl
825 /* records the type and storage class specs to use for processing
826 the declarators that follow.
827 Maintains a stack of outer-level values of current_declspecs,
828 for the sake of parm declarations nested in function declarators. */
829 setspecs: /* empty */
830 { pending_xref_error ();
832 split_specs_attrs ($<ttype>0,
833 ¤t_declspecs, &prefix_attributes);
834 all_prefix_attributes = prefix_attributes; }
837 /* Possibly attributes after a comma, which should reset all_prefix_attributes
838 to prefix_attributes with these ones chained on the front. */
841 { all_prefix_attributes = chainon ($1, prefix_attributes); }
845 declspecs_ts setspecs initdecls ';'
846 { POP_DECLSPEC_STACK; }
847 | declspecs_nots setspecs notype_initdecls ';'
848 { POP_DECLSPEC_STACK; }
849 | declspecs_ts setspecs nested_function
850 { POP_DECLSPEC_STACK; }
851 | declspecs_nots setspecs notype_nested_function
852 { POP_DECLSPEC_STACK; }
856 { RESTORE_WARN_FLAGS ($1); }
859 /* A list of declaration specifiers. These are:
861 - Storage class specifiers (scspec), which for GCC currently includes
862 function specifiers ("inline").
864 - Type specifiers (typespec_*).
866 - Type qualifiers (TYPE_QUAL).
868 - Attribute specifier lists (attributes).
870 These are stored as a TREE_LIST; the head of the list is the last
871 item in the specifier list. Each entry in the list has either a
872 TREE_PURPOSE that is an attribute specifier list, or a TREE_VALUE that
873 is a single other specifier or qualifier; and a TREE_CHAIN that is the
874 rest of the list. TREE_STATIC is set on the list if something other
875 than a storage class specifier or attribute has been seen; this is used
876 to warn for the obsolescent usage of storage class specifiers other than
877 at the start of the list. (Doing this properly would require function
878 specifiers to be handled separately from storage class specifiers.)
880 The various cases below are classified according to:
882 (a) Whether a storage class specifier is included or not; some
883 places in the grammar disallow storage class specifiers (_sc or _nosc).
885 (b) Whether a type specifier has been seen; after a type specifier,
886 a typedef name is an identifier to redeclare (_ts or _nots).
888 (c) Whether the list starts with an attribute; in certain places,
889 the grammar requires specifiers that don't start with an attribute
892 (d) Whether the list ends with an attribute (or a specifier such that
893 any following attribute would have been parsed as part of that specifier);
894 this avoids shift-reduce conflicts in the parsing of attributes
899 (i) Distinguish between function specifiers and storage class specifiers,
900 at least for the purpose of warnings about obsolescent usage.
902 (ii) Halve the number of productions here by eliminating the _sc/_nosc
903 distinction and instead checking where required that storage class
904 specifiers aren't present. */
906 /* Declspecs which contain at least one type specifier or typedef name.
907 (Just `const' or `volatile' is not enough.)
908 A typedef'd name following these is taken as a name to be declared.
909 Declspecs have a non-NULL TREE_VALUE, attributes do not. */
911 declspecs_nosc_nots_nosa_noea:
913 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
914 TREE_STATIC ($$) = 1; }
915 | declspecs_nosc_nots_nosa_noea TYPE_QUAL
916 { $$ = tree_cons (NULL_TREE, $2, $1);
917 TREE_STATIC ($$) = 1; }
918 | declspecs_nosc_nots_nosa_ea TYPE_QUAL
919 { $$ = tree_cons (NULL_TREE, $2, $1);
920 TREE_STATIC ($$) = 1; }
923 declspecs_nosc_nots_nosa_ea:
924 declspecs_nosc_nots_nosa_noea attributes
925 { $$ = tree_cons ($2, NULL_TREE, $1);
926 TREE_STATIC ($$) = TREE_STATIC ($1); }
929 declspecs_nosc_nots_sa_noea:
930 declspecs_nosc_nots_sa_noea TYPE_QUAL
931 { $$ = tree_cons (NULL_TREE, $2, $1);
932 TREE_STATIC ($$) = 1; }
933 | declspecs_nosc_nots_sa_ea TYPE_QUAL
934 { $$ = tree_cons (NULL_TREE, $2, $1);
935 TREE_STATIC ($$) = 1; }
938 declspecs_nosc_nots_sa_ea:
940 { $$ = tree_cons ($1, NULL_TREE, NULL_TREE);
941 TREE_STATIC ($$) = 0; }
942 | declspecs_nosc_nots_sa_noea attributes
943 { $$ = tree_cons ($2, NULL_TREE, $1);
944 TREE_STATIC ($$) = TREE_STATIC ($1); }
947 declspecs_nosc_ts_nosa_noea:
949 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
950 TREE_STATIC ($$) = 1; }
951 | declspecs_nosc_ts_nosa_noea TYPE_QUAL
952 { $$ = tree_cons (NULL_TREE, $2, $1);
953 TREE_STATIC ($$) = 1; }
954 | declspecs_nosc_ts_nosa_ea TYPE_QUAL
955 { $$ = tree_cons (NULL_TREE, $2, $1);
956 TREE_STATIC ($$) = 1; }
957 | declspecs_nosc_ts_nosa_noea typespec_reserved_nonattr
958 { $$ = tree_cons (NULL_TREE, $2, $1);
959 TREE_STATIC ($$) = 1; }
960 | declspecs_nosc_ts_nosa_ea typespec_reserved_nonattr
961 { $$ = tree_cons (NULL_TREE, $2, $1);
962 TREE_STATIC ($$) = 1; }
963 | declspecs_nosc_nots_nosa_noea typespec_nonattr
964 { $$ = tree_cons (NULL_TREE, $2, $1);
965 TREE_STATIC ($$) = 1; }
966 | declspecs_nosc_nots_nosa_ea typespec_nonattr
967 { $$ = tree_cons (NULL_TREE, $2, $1);
968 TREE_STATIC ($$) = 1; }
971 declspecs_nosc_ts_nosa_ea:
973 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
974 TREE_STATIC ($$) = 1; }
975 | declspecs_nosc_ts_nosa_noea attributes
976 { $$ = tree_cons ($2, NULL_TREE, $1);
977 TREE_STATIC ($$) = TREE_STATIC ($1); }
978 | declspecs_nosc_ts_nosa_noea typespec_reserved_attr
979 { $$ = tree_cons (NULL_TREE, $2, $1);
980 TREE_STATIC ($$) = 1; }
981 | declspecs_nosc_ts_nosa_ea typespec_reserved_attr
982 { $$ = tree_cons (NULL_TREE, $2, $1);
983 TREE_STATIC ($$) = 1; }
984 | declspecs_nosc_nots_nosa_noea typespec_attr
985 { $$ = tree_cons (NULL_TREE, $2, $1);
986 TREE_STATIC ($$) = 1; }
987 | declspecs_nosc_nots_nosa_ea typespec_attr
988 { $$ = tree_cons (NULL_TREE, $2, $1);
989 TREE_STATIC ($$) = 1; }
992 declspecs_nosc_ts_sa_noea:
993 declspecs_nosc_ts_sa_noea TYPE_QUAL
994 { $$ = tree_cons (NULL_TREE, $2, $1);
995 TREE_STATIC ($$) = 1; }
996 | declspecs_nosc_ts_sa_ea TYPE_QUAL
997 { $$ = tree_cons (NULL_TREE, $2, $1);
998 TREE_STATIC ($$) = 1; }
999 | declspecs_nosc_ts_sa_noea typespec_reserved_nonattr
1000 { $$ = tree_cons (NULL_TREE, $2, $1);
1001 TREE_STATIC ($$) = 1; }
1002 | declspecs_nosc_ts_sa_ea typespec_reserved_nonattr
1003 { $$ = tree_cons (NULL_TREE, $2, $1);
1004 TREE_STATIC ($$) = 1; }
1005 | declspecs_nosc_nots_sa_noea typespec_nonattr
1006 { $$ = tree_cons (NULL_TREE, $2, $1);
1007 TREE_STATIC ($$) = 1; }
1008 | declspecs_nosc_nots_sa_ea typespec_nonattr
1009 { $$ = tree_cons (NULL_TREE, $2, $1);
1010 TREE_STATIC ($$) = 1; }
1013 declspecs_nosc_ts_sa_ea:
1014 declspecs_nosc_ts_sa_noea attributes
1015 { $$ = tree_cons ($2, NULL_TREE, $1);
1016 TREE_STATIC ($$) = TREE_STATIC ($1); }
1017 | declspecs_nosc_ts_sa_noea typespec_reserved_attr
1018 { $$ = tree_cons (NULL_TREE, $2, $1);
1019 TREE_STATIC ($$) = 1; }
1020 | declspecs_nosc_ts_sa_ea typespec_reserved_attr
1021 { $$ = tree_cons (NULL_TREE, $2, $1);
1022 TREE_STATIC ($$) = 1; }
1023 | declspecs_nosc_nots_sa_noea typespec_attr
1024 { $$ = tree_cons (NULL_TREE, $2, $1);
1025 TREE_STATIC ($$) = 1; }
1026 | declspecs_nosc_nots_sa_ea typespec_attr
1027 { $$ = tree_cons (NULL_TREE, $2, $1);
1028 TREE_STATIC ($$) = 1; }
1031 declspecs_sc_nots_nosa_noea:
1033 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
1034 TREE_STATIC ($$) = 0; }
1035 | declspecs_sc_nots_nosa_noea TYPE_QUAL
1036 { $$ = tree_cons (NULL_TREE, $2, $1);
1037 TREE_STATIC ($$) = 1; }
1038 | declspecs_sc_nots_nosa_ea TYPE_QUAL
1039 { $$ = tree_cons (NULL_TREE, $2, $1);
1040 TREE_STATIC ($$) = 1; }
1041 | declspecs_nosc_nots_nosa_noea scspec
1042 { if (extra_warnings && TREE_STATIC ($1))
1043 warning ("`%s' is not at beginning of declaration",
1044 IDENTIFIER_POINTER ($2));
1045 $$ = tree_cons (NULL_TREE, $2, $1);
1046 TREE_STATIC ($$) = TREE_STATIC ($1); }
1047 | declspecs_nosc_nots_nosa_ea scspec
1048 { if (extra_warnings && TREE_STATIC ($1))
1049 warning ("`%s' is not at beginning of declaration",
1050 IDENTIFIER_POINTER ($2));
1051 $$ = tree_cons (NULL_TREE, $2, $1);
1052 TREE_STATIC ($$) = TREE_STATIC ($1); }
1053 | declspecs_sc_nots_nosa_noea scspec
1054 { if (extra_warnings && TREE_STATIC ($1))
1055 warning ("`%s' is not at beginning of declaration",
1056 IDENTIFIER_POINTER ($2));
1057 $$ = tree_cons (NULL_TREE, $2, $1);
1058 TREE_STATIC ($$) = TREE_STATIC ($1); }
1059 | declspecs_sc_nots_nosa_ea scspec
1060 { if (extra_warnings && TREE_STATIC ($1))
1061 warning ("`%s' is not at beginning of declaration",
1062 IDENTIFIER_POINTER ($2));
1063 $$ = tree_cons (NULL_TREE, $2, $1);
1064 TREE_STATIC ($$) = TREE_STATIC ($1); }
1067 declspecs_sc_nots_nosa_ea:
1068 declspecs_sc_nots_nosa_noea attributes
1069 { $$ = tree_cons ($2, NULL_TREE, $1);
1070 TREE_STATIC ($$) = TREE_STATIC ($1); }
1073 declspecs_sc_nots_sa_noea:
1074 declspecs_sc_nots_sa_noea TYPE_QUAL
1075 { $$ = tree_cons (NULL_TREE, $2, $1);
1076 TREE_STATIC ($$) = 1; }
1077 | declspecs_sc_nots_sa_ea TYPE_QUAL
1078 { $$ = tree_cons (NULL_TREE, $2, $1);
1079 TREE_STATIC ($$) = 1; }
1080 | declspecs_nosc_nots_sa_noea scspec
1081 { if (extra_warnings && TREE_STATIC ($1))
1082 warning ("`%s' is not at beginning of declaration",
1083 IDENTIFIER_POINTER ($2));
1084 $$ = tree_cons (NULL_TREE, $2, $1);
1085 TREE_STATIC ($$) = TREE_STATIC ($1); }
1086 | declspecs_nosc_nots_sa_ea scspec
1087 { if (extra_warnings && TREE_STATIC ($1))
1088 warning ("`%s' is not at beginning of declaration",
1089 IDENTIFIER_POINTER ($2));
1090 $$ = tree_cons (NULL_TREE, $2, $1);
1091 TREE_STATIC ($$) = TREE_STATIC ($1); }
1092 | declspecs_sc_nots_sa_noea scspec
1093 { if (extra_warnings && TREE_STATIC ($1))
1094 warning ("`%s' is not at beginning of declaration",
1095 IDENTIFIER_POINTER ($2));
1096 $$ = tree_cons (NULL_TREE, $2, $1);
1097 TREE_STATIC ($$) = TREE_STATIC ($1); }
1098 | declspecs_sc_nots_sa_ea scspec
1099 { if (extra_warnings && TREE_STATIC ($1))
1100 warning ("`%s' is not at beginning of declaration",
1101 IDENTIFIER_POINTER ($2));
1102 $$ = tree_cons (NULL_TREE, $2, $1);
1103 TREE_STATIC ($$) = TREE_STATIC ($1); }
1106 declspecs_sc_nots_sa_ea:
1107 declspecs_sc_nots_sa_noea attributes
1108 { $$ = tree_cons ($2, NULL_TREE, $1);
1109 TREE_STATIC ($$) = TREE_STATIC ($1); }
1112 declspecs_sc_ts_nosa_noea:
1113 declspecs_sc_ts_nosa_noea TYPE_QUAL
1114 { $$ = tree_cons (NULL_TREE, $2, $1);
1115 TREE_STATIC ($$) = 1; }
1116 | declspecs_sc_ts_nosa_ea TYPE_QUAL
1117 { $$ = tree_cons (NULL_TREE, $2, $1);
1118 TREE_STATIC ($$) = 1; }
1119 | declspecs_sc_ts_nosa_noea typespec_reserved_nonattr
1120 { $$ = tree_cons (NULL_TREE, $2, $1);
1121 TREE_STATIC ($$) = 1; }
1122 | declspecs_sc_ts_nosa_ea typespec_reserved_nonattr
1123 { $$ = tree_cons (NULL_TREE, $2, $1);
1124 TREE_STATIC ($$) = 1; }
1125 | declspecs_sc_nots_nosa_noea typespec_nonattr
1126 { $$ = tree_cons (NULL_TREE, $2, $1);
1127 TREE_STATIC ($$) = 1; }
1128 | declspecs_sc_nots_nosa_ea typespec_nonattr
1129 { $$ = tree_cons (NULL_TREE, $2, $1);
1130 TREE_STATIC ($$) = 1; }
1131 | declspecs_nosc_ts_nosa_noea scspec
1132 { if (extra_warnings && TREE_STATIC ($1))
1133 warning ("`%s' is not at beginning of declaration",
1134 IDENTIFIER_POINTER ($2));
1135 $$ = tree_cons (NULL_TREE, $2, $1);
1136 TREE_STATIC ($$) = TREE_STATIC ($1); }
1137 | declspecs_nosc_ts_nosa_ea scspec
1138 { if (extra_warnings && TREE_STATIC ($1))
1139 warning ("`%s' is not at beginning of declaration",
1140 IDENTIFIER_POINTER ($2));
1141 $$ = tree_cons (NULL_TREE, $2, $1);
1142 TREE_STATIC ($$) = TREE_STATIC ($1); }
1143 | declspecs_sc_ts_nosa_noea scspec
1144 { if (extra_warnings && TREE_STATIC ($1))
1145 warning ("`%s' is not at beginning of declaration",
1146 IDENTIFIER_POINTER ($2));
1147 $$ = tree_cons (NULL_TREE, $2, $1);
1148 TREE_STATIC ($$) = TREE_STATIC ($1); }
1149 | declspecs_sc_ts_nosa_ea scspec
1150 { if (extra_warnings && TREE_STATIC ($1))
1151 warning ("`%s' is not at beginning of declaration",
1152 IDENTIFIER_POINTER ($2));
1153 $$ = tree_cons (NULL_TREE, $2, $1);
1154 TREE_STATIC ($$) = TREE_STATIC ($1); }
1157 declspecs_sc_ts_nosa_ea:
1158 declspecs_sc_ts_nosa_noea attributes
1159 { $$ = tree_cons ($2, NULL_TREE, $1);
1160 TREE_STATIC ($$) = TREE_STATIC ($1); }
1161 | declspecs_sc_ts_nosa_noea typespec_reserved_attr
1162 { $$ = tree_cons (NULL_TREE, $2, $1);
1163 TREE_STATIC ($$) = 1; }
1164 | declspecs_sc_ts_nosa_ea typespec_reserved_attr
1165 { $$ = tree_cons (NULL_TREE, $2, $1);
1166 TREE_STATIC ($$) = 1; }
1167 | declspecs_sc_nots_nosa_noea typespec_attr
1168 { $$ = tree_cons (NULL_TREE, $2, $1);
1169 TREE_STATIC ($$) = 1; }
1170 | declspecs_sc_nots_nosa_ea typespec_attr
1171 { $$ = tree_cons (NULL_TREE, $2, $1);
1172 TREE_STATIC ($$) = 1; }
1175 declspecs_sc_ts_sa_noea:
1176 declspecs_sc_ts_sa_noea TYPE_QUAL
1177 { $$ = tree_cons (NULL_TREE, $2, $1);
1178 TREE_STATIC ($$) = 1; }
1179 | declspecs_sc_ts_sa_ea TYPE_QUAL
1180 { $$ = tree_cons (NULL_TREE, $2, $1);
1181 TREE_STATIC ($$) = 1; }
1182 | declspecs_sc_ts_sa_noea typespec_reserved_nonattr
1183 { $$ = tree_cons (NULL_TREE, $2, $1);
1184 TREE_STATIC ($$) = 1; }
1185 | declspecs_sc_ts_sa_ea typespec_reserved_nonattr
1186 { $$ = tree_cons (NULL_TREE, $2, $1);
1187 TREE_STATIC ($$) = 1; }
1188 | declspecs_sc_nots_sa_noea typespec_nonattr
1189 { $$ = tree_cons (NULL_TREE, $2, $1);
1190 TREE_STATIC ($$) = 1; }
1191 | declspecs_sc_nots_sa_ea typespec_nonattr
1192 { $$ = tree_cons (NULL_TREE, $2, $1);
1193 TREE_STATIC ($$) = 1; }
1194 | declspecs_nosc_ts_sa_noea scspec
1195 { if (extra_warnings && TREE_STATIC ($1))
1196 warning ("`%s' is not at beginning of declaration",
1197 IDENTIFIER_POINTER ($2));
1198 $$ = tree_cons (NULL_TREE, $2, $1);
1199 TREE_STATIC ($$) = TREE_STATIC ($1); }
1200 | declspecs_nosc_ts_sa_ea scspec
1201 { if (extra_warnings && TREE_STATIC ($1))
1202 warning ("`%s' is not at beginning of declaration",
1203 IDENTIFIER_POINTER ($2));
1204 $$ = tree_cons (NULL_TREE, $2, $1);
1205 TREE_STATIC ($$) = TREE_STATIC ($1); }
1206 | declspecs_sc_ts_sa_noea scspec
1207 { if (extra_warnings && TREE_STATIC ($1))
1208 warning ("`%s' is not at beginning of declaration",
1209 IDENTIFIER_POINTER ($2));
1210 $$ = tree_cons (NULL_TREE, $2, $1);
1211 TREE_STATIC ($$) = TREE_STATIC ($1); }
1212 | declspecs_sc_ts_sa_ea scspec
1213 { if (extra_warnings && TREE_STATIC ($1))
1214 warning ("`%s' is not at beginning of declaration",
1215 IDENTIFIER_POINTER ($2));
1216 $$ = tree_cons (NULL_TREE, $2, $1);
1217 TREE_STATIC ($$) = TREE_STATIC ($1); }
1220 declspecs_sc_ts_sa_ea:
1221 declspecs_sc_ts_sa_noea attributes
1222 { $$ = tree_cons ($2, NULL_TREE, $1);
1223 TREE_STATIC ($$) = TREE_STATIC ($1); }
1224 | declspecs_sc_ts_sa_noea typespec_reserved_attr
1225 { $$ = tree_cons (NULL_TREE, $2, $1);
1226 TREE_STATIC ($$) = 1; }
1227 | declspecs_sc_ts_sa_ea typespec_reserved_attr
1228 { $$ = tree_cons (NULL_TREE, $2, $1);
1229 TREE_STATIC ($$) = 1; }
1230 | declspecs_sc_nots_sa_noea typespec_attr
1231 { $$ = tree_cons (NULL_TREE, $2, $1);
1232 TREE_STATIC ($$) = 1; }
1233 | declspecs_sc_nots_sa_ea typespec_attr
1234 { $$ = tree_cons (NULL_TREE, $2, $1);
1235 TREE_STATIC ($$) = 1; }
1238 /* Particular useful classes of declspecs. */
1240 declspecs_nosc_ts_nosa_noea
1241 | declspecs_nosc_ts_nosa_ea
1242 | declspecs_nosc_ts_sa_noea
1243 | declspecs_nosc_ts_sa_ea
1244 | declspecs_sc_ts_nosa_noea
1245 | declspecs_sc_ts_nosa_ea
1246 | declspecs_sc_ts_sa_noea
1247 | declspecs_sc_ts_sa_ea
1251 declspecs_nosc_nots_nosa_noea
1252 | declspecs_nosc_nots_nosa_ea
1253 | declspecs_nosc_nots_sa_noea
1254 | declspecs_nosc_nots_sa_ea
1255 | declspecs_sc_nots_nosa_noea
1256 | declspecs_sc_nots_nosa_ea
1257 | declspecs_sc_nots_sa_noea
1258 | declspecs_sc_nots_sa_ea
1262 declspecs_nosc_ts_nosa_noea
1263 | declspecs_nosc_ts_nosa_ea
1264 | declspecs_sc_ts_nosa_noea
1265 | declspecs_sc_ts_nosa_ea
1268 declspecs_nots_nosa:
1269 declspecs_nosc_nots_nosa_noea
1270 | declspecs_nosc_nots_nosa_ea
1271 | declspecs_sc_nots_nosa_noea
1272 | declspecs_sc_nots_nosa_ea
1276 declspecs_nosc_ts_nosa_noea
1277 | declspecs_nosc_ts_nosa_ea
1278 | declspecs_nosc_ts_sa_noea
1279 | declspecs_nosc_ts_sa_ea
1282 declspecs_nosc_nots:
1283 declspecs_nosc_nots_nosa_noea
1284 | declspecs_nosc_nots_nosa_ea
1285 | declspecs_nosc_nots_sa_noea
1286 | declspecs_nosc_nots_sa_ea
1290 declspecs_nosc_ts_nosa_noea
1291 | declspecs_nosc_ts_nosa_ea
1292 | declspecs_nosc_ts_sa_noea
1293 | declspecs_nosc_ts_sa_ea
1294 | declspecs_nosc_nots_nosa_noea
1295 | declspecs_nosc_nots_nosa_ea
1296 | declspecs_nosc_nots_sa_noea
1297 | declspecs_nosc_nots_sa_ea
1301 declspecs_nosc_nots_nosa_noea
1302 | declspecs_nosc_nots_nosa_ea
1303 | declspecs_nosc_nots_sa_noea
1304 | declspecs_nosc_nots_sa_ea
1305 | declspecs_nosc_ts_nosa_noea
1306 | declspecs_nosc_ts_nosa_ea
1307 | declspecs_nosc_ts_sa_noea
1308 | declspecs_nosc_ts_sa_ea
1309 | declspecs_sc_nots_nosa_noea
1310 | declspecs_sc_nots_nosa_ea
1311 | declspecs_sc_nots_sa_noea
1312 | declspecs_sc_nots_sa_ea
1313 | declspecs_sc_ts_nosa_noea
1314 | declspecs_sc_ts_nosa_ea
1315 | declspecs_sc_ts_sa_noea
1316 | declspecs_sc_ts_sa_ea
1319 /* A (possibly empty) sequence of type qualifiers and attributes. */
1320 maybe_type_quals_attrs:
1323 | declspecs_nosc_nots
1327 /* A type specifier (but not a type qualifier).
1328 Once we have seen one of these in a declaration,
1329 if a typedef name appears then it is being redeclared.
1331 The _reserved versions start with a reserved word and may appear anywhere
1332 in the declaration specifiers; the _nonreserved versions may only
1333 appear before any other type specifiers, and after that are (if names)
1336 FIXME: should the _nonreserved version be restricted to names being
1337 redeclared only? The other entries there relate only the GNU extensions
1338 and Objective C, and are historically parsed thus, and don't make sense
1339 after other type specifiers, but it might be cleaner to count them as
1342 _attr means: specifiers that either end with attributes,
1343 or are such that any following attributes would
1344 be parsed as part of the specifier.
1346 _nonattr: specifiers. */
1349 typespec_reserved_nonattr
1350 | typespec_nonreserved_nonattr
1354 typespec_reserved_attr
1357 typespec_reserved_nonattr:
1359 { OBJC_NEED_RAW_IDENTIFIER (1); }
1363 typespec_reserved_attr:
1367 typespec_nonreserved_nonattr:
1369 { /* For a typedef name, record the meaning, not the name.
1370 In case of `foo foo, bar;'. */
1371 $$ = lookup_name ($1); }
1373 | CLASSNAME protocolrefs
1374 { $$ = get_static_reference ($1, $2); }
1375 | OBJECTNAME protocolrefs
1376 { $$ = get_object_reference ($2); }
1378 /* Make "<SomeProtocol>" equivalent to "id <SomeProtocol>"
1379 - nisse@lysator.liu.se */
1380 | non_empty_protocolrefs
1381 { $$ = get_object_reference ($1); }
1383 | TYPEOF '(' expr ')'
1384 { $$ = TREE_TYPE ($3); }
1385 | TYPEOF '(' typename ')'
1386 { $$ = groktypename ($3); }
1389 /* typespec_nonreserved_attr does not exist. */
1393 | initdecls ',' maybe_resetattrs initdcl
1398 | notype_initdecls ',' maybe_resetattrs notype_initdcl
1404 | ASM_KEYWORD '(' string ')'
1405 { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
1411 declarator maybeasm maybe_attribute '='
1412 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1413 chainon ($3, all_prefix_attributes));
1414 start_init ($<ttype>$, $2, global_bindings_p ()); }
1416 /* Note how the declaration of the variable is in effect while its init is parsed! */
1418 finish_decl ($<ttype>5, $6, $2); }
1419 | declarator maybeasm maybe_attribute
1420 { tree d = start_decl ($1, current_declspecs, 0,
1421 chainon ($3, all_prefix_attributes));
1422 finish_decl (d, NULL_TREE, $2);
1427 notype_declarator maybeasm maybe_attribute '='
1428 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1429 chainon ($3, all_prefix_attributes));
1430 start_init ($<ttype>$, $2, global_bindings_p ()); }
1432 /* Note how the declaration of the variable is in effect while its init is parsed! */
1434 finish_decl ($<ttype>5, $6, $2); }
1435 | notype_declarator maybeasm maybe_attribute
1436 { tree d = start_decl ($1, current_declspecs, 0,
1437 chainon ($3, all_prefix_attributes));
1438 finish_decl (d, NULL_TREE, $2); }
1440 /* the * rules are dummies to accept the Apollo extended syntax
1441 so that the header files compile. */
1452 | attributes attribute
1453 { $$ = chainon ($1, $2); }
1457 ATTRIBUTE '(' '(' attribute_list ')' ')'
1464 | attribute_list ',' attrib
1465 { $$ = chainon ($1, $3); }
1472 { $$ = build_tree_list ($1, NULL_TREE); }
1473 | any_word '(' IDENTIFIER ')'
1474 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
1475 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
1476 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
1477 | any_word '(' exprlist ')'
1478 { $$ = build_tree_list ($1, $3); }
1481 /* This still leaves out most reserved keywords,
1482 shouldn't we include them? */
1496 /* Initializers. `init' is the entry point. */
1501 { really_start_incremental_init (NULL_TREE); }
1502 initlist_maybe_comma '}'
1503 { $$ = pop_init_level (0); }
1505 { $$ = error_mark_node; }
1508 /* `initlist_maybe_comma' is the guts of an initializer in braces. */
1509 initlist_maybe_comma:
1512 pedwarn ("ISO C forbids empty initializer braces"); }
1513 | initlist1 maybecomma
1518 | initlist1 ',' initelt
1521 /* `initelt' is a single element of an initializer.
1522 It may use braces. */
1524 designator_list '=' initval
1525 { if (pedantic && ! flag_isoc99)
1526 pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
1527 | designator initval
1529 pedwarn ("obsolete use of designated initializer without `='"); }
1531 { set_init_label ($1);
1533 pedwarn ("obsolete use of designated initializer with `:'"); }
1540 { push_init_level (0); }
1541 initlist_maybe_comma '}'
1542 { process_init_element (pop_init_level (0)); }
1544 { process_init_element ($1); }
1550 | designator_list designator
1555 { set_init_label ($2); }
1556 /* These are for labeled elements. The syntax for an array element
1557 initializer conflicts with the syntax for an Objective-C message,
1558 so don't include these productions in the Objective-C grammar. */
1560 | '[' expr_no_commas ELLIPSIS expr_no_commas ']'
1561 { set_init_index ($2, $4);
1563 pedwarn ("ISO C forbids specifying range of elements to initialize"); }
1564 | '[' expr_no_commas ']'
1565 { set_init_index ($2, NULL_TREE); }
1572 pedwarn ("ISO C forbids nested functions");
1574 push_function_context ();
1575 if (! start_function (current_declspecs, $1,
1576 all_prefix_attributes))
1578 pop_function_context ();
1582 old_style_parm_decls
1583 { store_parm_decls (); }
1584 /* This used to use compstmt_or_error.
1585 That caused a bug with input `f(g) int g {}',
1586 where the use of YYERROR1 above caused an error
1587 which then was handled by compstmt_or_error.
1588 There followed a repeated execution of that same rule,
1589 which called YYERROR1 again, and so on. */
1590 save_filename save_lineno compstmt
1591 { tree decl = current_function_decl;
1592 DECL_SOURCE_FILE (decl) = $5;
1593 DECL_SOURCE_LINE (decl) = $6;
1594 finish_function (1, 1);
1595 pop_function_context ();
1596 add_decl_stmt (decl); }
1599 notype_nested_function:
1602 pedwarn ("ISO C forbids nested functions");
1604 push_function_context ();
1605 if (! start_function (current_declspecs, $1,
1606 all_prefix_attributes))
1608 pop_function_context ();
1612 old_style_parm_decls
1613 { store_parm_decls (); }
1614 /* This used to use compstmt_or_error.
1615 That caused a bug with input `f(g) int g {}',
1616 where the use of YYERROR1 above caused an error
1617 which then was handled by compstmt_or_error.
1618 There followed a repeated execution of that same rule,
1619 which called YYERROR1 again, and so on. */
1620 save_filename save_lineno compstmt
1621 { tree decl = current_function_decl;
1622 DECL_SOURCE_FILE (decl) = $5;
1623 DECL_SOURCE_LINE (decl) = $6;
1624 finish_function (1, 1);
1625 pop_function_context ();
1626 add_decl_stmt (decl); }
1629 /* Any kind of declarator (thus, all declarators allowed
1630 after an explicit typespec). */
1633 after_type_declarator
1637 /* A declarator that is allowed only after an explicit typespec. */
1639 after_type_declarator:
1640 '(' maybe_attribute after_type_declarator ')'
1641 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1642 | after_type_declarator '(' parmlist_or_identifiers %prec '.'
1643 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1644 /* | after_type_declarator '(' error ')' %prec '.'
1645 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1646 poplevel (0, 0, 0); } */
1647 | after_type_declarator array_declarator %prec '.'
1648 { $$ = set_array_declarator_type ($2, $1, 0); }
1649 | '*' maybe_type_quals_attrs after_type_declarator %prec UNARY
1650 { $$ = make_pointer_declarator ($2, $3); }
1657 /* Kinds of declarator that can appear in a parameter list
1658 in addition to notype_declarator. This is like after_type_declarator
1659 but does not allow a typedef name in parentheses as an identifier
1660 (because it would conflict with a function with that typedef as arg). */
1662 parm_declarator_starttypename
1663 | parm_declarator_nostarttypename
1666 parm_declarator_starttypename:
1667 parm_declarator_starttypename '(' parmlist_or_identifiers %prec '.'
1668 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1669 /* | parm_declarator_starttypename '(' error ')' %prec '.'
1670 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1671 poplevel (0, 0, 0); } */
1672 | parm_declarator_starttypename array_declarator %prec '.'
1673 { $$ = set_array_declarator_type ($2, $1, 0); }
1680 parm_declarator_nostarttypename:
1681 parm_declarator_nostarttypename '(' parmlist_or_identifiers %prec '.'
1682 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1683 /* | parm_declarator_nostarttypename '(' error ')' %prec '.'
1684 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1685 poplevel (0, 0, 0); } */
1686 | parm_declarator_nostarttypename array_declarator %prec '.'
1687 { $$ = set_array_declarator_type ($2, $1, 0); }
1688 | '*' maybe_type_quals_attrs parm_declarator_starttypename %prec UNARY
1689 { $$ = make_pointer_declarator ($2, $3); }
1690 | '*' maybe_type_quals_attrs parm_declarator_nostarttypename %prec UNARY
1691 { $$ = make_pointer_declarator ($2, $3); }
1692 | '(' maybe_attribute parm_declarator_nostarttypename ')'
1693 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1696 /* A declarator allowed whether or not there has been
1697 an explicit typespec. These cannot redeclare a typedef-name. */
1700 notype_declarator '(' parmlist_or_identifiers %prec '.'
1701 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1702 /* | notype_declarator '(' error ')' %prec '.'
1703 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1704 poplevel (0, 0, 0); } */
1705 | '(' maybe_attribute notype_declarator ')'
1706 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1707 | '*' maybe_type_quals_attrs notype_declarator %prec UNARY
1708 { $$ = make_pointer_declarator ($2, $3); }
1709 | notype_declarator array_declarator %prec '.'
1710 { $$ = set_array_declarator_type ($2, $1, 0); }
1735 /* structsp_attr: struct/union/enum specifiers that either
1736 end with attributes, or are such that any following attributes would
1737 be parsed as part of the struct/union/enum specifier.
1739 structsp_nonattr: other struct/union/enum specifiers. */
1742 struct_head identifier '{'
1743 { $$ = start_struct (RECORD_TYPE, $2);
1744 /* Start scope of tag before parsing components. */
1746 component_decl_list '}' maybe_attribute
1747 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1748 | struct_head '{' component_decl_list '}' maybe_attribute
1749 { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
1750 $3, chainon ($1, $5));
1752 | union_head identifier '{'
1753 { $$ = start_struct (UNION_TYPE, $2); }
1754 component_decl_list '}' maybe_attribute
1755 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1756 | union_head '{' component_decl_list '}' maybe_attribute
1757 { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
1758 $3, chainon ($1, $5));
1760 | enum_head identifier '{'
1761 { $$ = start_enum ($2); }
1762 enumlist maybecomma_warn '}' maybe_attribute
1763 { $$ = finish_enum ($<ttype>4, nreverse ($5),
1764 chainon ($1, $8)); }
1766 { $$ = start_enum (NULL_TREE); }
1767 enumlist maybecomma_warn '}' maybe_attribute
1768 { $$ = finish_enum ($<ttype>3, nreverse ($4),
1769 chainon ($1, $7)); }
1773 struct_head identifier
1774 { $$ = xref_tag (RECORD_TYPE, $2); }
1775 | union_head identifier
1776 { $$ = xref_tag (UNION_TYPE, $2); }
1777 | enum_head identifier
1778 { $$ = xref_tag (ENUMERAL_TYPE, $2);
1779 /* In ISO C, enumerated types can be referred to
1780 only if already defined. */
1781 if (pedantic && !COMPLETE_TYPE_P ($$))
1782 pedwarn ("ISO C forbids forward references to `enum' types"); }
1793 { if (pedantic && ! flag_isoc99)
1794 pedwarn ("comma at end of enumerator list"); }
1797 component_decl_list:
1798 component_decl_list2
1800 | component_decl_list2 component_decl
1801 { $$ = chainon ($1, $2);
1802 pedwarn ("no semicolon at end of struct or union"); }
1805 component_decl_list2: /* empty */
1807 | component_decl_list2 component_decl ';'
1808 { $$ = chainon ($1, $2); }
1809 | component_decl_list2 ';'
1811 pedwarn ("extra semicolon in struct or union specified"); }
1813 /* foo(sizeof(struct{ @defs(ClassName)})); */
1814 | DEFS '(' CLASSNAME ')'
1816 tree interface = lookup_interface ($3);
1819 $$ = get_class_ivars (interface);
1822 error ("cannot find interface declaration for `%s'",
1823 IDENTIFIER_POINTER ($3));
1831 declspecs_nosc_ts setspecs components
1833 POP_DECLSPEC_STACK; }
1834 | declspecs_nosc_ts setspecs save_filename save_lineno
1836 /* Support for unnamed structs or unions as members of
1837 structs or unions (which is [a] useful and [b] supports
1840 pedwarn ("ISO C doesn't support unnamed structs/unions");
1842 $$ = grokfield($3, $4, NULL, current_declspecs, NULL_TREE);
1843 POP_DECLSPEC_STACK; }
1844 | declspecs_nosc_nots setspecs components_notype
1846 POP_DECLSPEC_STACK; }
1847 | declspecs_nosc_nots
1849 pedwarn ("ISO C forbids member declarations with no members");
1854 | extension component_decl
1856 RESTORE_WARN_FLAGS ($1); }
1860 component_declarator
1861 | components ',' maybe_resetattrs component_declarator
1862 { $$ = chainon ($1, $4); }
1866 component_notype_declarator
1867 | components_notype ',' maybe_resetattrs component_notype_declarator
1868 { $$ = chainon ($1, $4); }
1871 component_declarator:
1872 save_filename save_lineno declarator maybe_attribute
1873 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1874 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1875 | save_filename save_lineno
1876 declarator ':' expr_no_commas maybe_attribute
1877 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1878 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1879 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1880 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1881 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1884 component_notype_declarator:
1885 save_filename save_lineno notype_declarator maybe_attribute
1886 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1887 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1888 | save_filename save_lineno
1889 notype_declarator ':' expr_no_commas maybe_attribute
1890 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1891 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1892 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1893 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1894 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1897 /* We chain the enumerators in reverse order.
1898 They are put in forward order where enumlist is used.
1899 (The order used to be significant, but no longer is so.
1900 However, we still maintain the order, just to be clean.) */
1904 | enumlist ',' enumerator
1905 { if ($1 == error_mark_node)
1908 $$ = chainon ($3, $1); }
1910 { $$ = error_mark_node; }
1916 { $$ = build_enumerator ($1, NULL_TREE); }
1917 | identifier '=' expr_no_commas
1918 { $$ = build_enumerator ($1, $3); }
1923 { pending_xref_error ();
1926 { $$ = build_tree_list ($<ttype>2, $3); }
1929 absdcl: /* an absolute declarator */
1935 absdcl_maybe_attribute: /* absdcl maybe_attribute, but not just attributes */
1937 { $$ = build_tree_list (build_tree_list (current_declspecs,
1939 all_prefix_attributes); }
1941 { $$ = build_tree_list (build_tree_list (current_declspecs,
1943 all_prefix_attributes); }
1944 | absdcl1_noea attributes
1945 { $$ = build_tree_list (build_tree_list (current_declspecs,
1947 chainon ($2, all_prefix_attributes)); }
1950 absdcl1: /* a nonempty absolute declarator */
1957 | '*' maybe_type_quals_attrs absdcl1_noea
1958 { $$ = make_pointer_declarator ($2, $3); }
1962 '*' maybe_type_quals_attrs
1963 { $$ = make_pointer_declarator ($2, NULL_TREE); }
1964 | '*' maybe_type_quals_attrs absdcl1_ea
1965 { $$ = make_pointer_declarator ($2, $3); }
1969 '(' maybe_attribute absdcl1 ')'
1970 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1971 | direct_absdcl1 '(' parmlist
1972 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1973 | direct_absdcl1 array_declarator
1974 { $$ = set_array_declarator_type ($2, $1, 1); }
1976 { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
1978 { $$ = set_array_declarator_type ($1, NULL_TREE, 1); }
1981 /* The [...] part of a declarator for an array type. */
1984 '[' maybe_type_quals_attrs expr ']'
1985 { $$ = build_array_declarator ($3, $2, 0, 0); }
1986 | '[' maybe_type_quals_attrs ']'
1987 { $$ = build_array_declarator (NULL_TREE, $2, 0, 0); }
1988 | '[' maybe_type_quals_attrs '*' ']'
1989 { $$ = build_array_declarator (NULL_TREE, $2, 0, 1); }
1990 | '[' STATIC maybe_type_quals_attrs expr ']'
1991 { $$ = build_array_declarator ($4, $3, 1, 0); }
1992 /* declspecs_nosc_nots is a synonym for type_quals_attrs. */
1993 | '[' declspecs_nosc_nots STATIC expr ']'
1994 { $$ = build_array_declarator ($4, $2, 1, 0); }
1997 /* A nonempty series of declarations and statements (possibly followed by
1998 some labels) that can form the body of a compound statement.
1999 NOTE: we don't allow labels on declarations; this might seem like a
2000 natural extension, but there would be a conflict between attributes
2001 on the label and prefix attributes on the declaration. */
2004 lineno_stmt_decl_or_labels_ending_stmt
2005 | lineno_stmt_decl_or_labels_ending_decl
2006 | lineno_stmt_decl_or_labels_ending_label
2008 pedwarn ("deprecated use of label at end of compound statement");
2010 | lineno_stmt_decl_or_labels_ending_error
2013 lineno_stmt_decl_or_labels_ending_stmt:
2015 | lineno_stmt_decl_or_labels_ending_stmt lineno_stmt
2016 | lineno_stmt_decl_or_labels_ending_decl lineno_stmt
2017 | lineno_stmt_decl_or_labels_ending_label lineno_stmt
2018 | lineno_stmt_decl_or_labels_ending_error lineno_stmt
2021 lineno_stmt_decl_or_labels_ending_decl:
2023 | lineno_stmt_decl_or_labels_ending_stmt lineno_decl
2024 { if (pedantic && !flag_isoc99)
2025 pedwarn ("ISO C89 forbids mixed declarations and code"); }
2026 | lineno_stmt_decl_or_labels_ending_decl lineno_decl
2027 | lineno_stmt_decl_or_labels_ending_error lineno_decl
2030 lineno_stmt_decl_or_labels_ending_label:
2032 | lineno_stmt_decl_or_labels_ending_stmt lineno_label
2033 | lineno_stmt_decl_or_labels_ending_decl lineno_label
2034 | lineno_stmt_decl_or_labels_ending_label lineno_label
2035 | lineno_stmt_decl_or_labels_ending_error lineno_label
2038 lineno_stmt_decl_or_labels_ending_error:
2040 | lineno_stmt_decl_or_labels errstmt
2043 lineno_stmt_decl_or_labels:
2044 lineno_stmt_decl_or_labels_ending_stmt
2045 | lineno_stmt_decl_or_labels_ending_decl
2046 | lineno_stmt_decl_or_labels_ending_label
2047 | lineno_stmt_decl_or_labels_ending_error
2053 pushlevel: /* empty */
2056 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2058 if (objc_method_context)
2064 poplevel: /* empty */
2065 { $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
2067 /* Start and end blocks created for the new scopes of C99. */
2068 c99_block_start: /* empty */
2071 $$ = c_begin_compound_stmt ();
2074 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2076 if (objc_method_context)
2085 /* Productions using c99_block_start and c99_block_end will need to do what's
2086 in compstmt: RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); $$ = $2; where
2087 $1 is the value of c99_block_start and $2 of c99_block_end. */
2088 c99_block_end: /* empty */
2091 tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
2092 $$ = poplevel (kept_level_p (), 0, 0);
2093 SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
2094 = SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
2101 /* Read zero or more forward-declarations for labels
2102 that nested functions can jump to. */
2107 pedwarn ("ISO C forbids label declarations"); }
2112 | label_decls label_decl
2116 LABEL identifiers_or_typenames ';'
2118 for (link = $2; link; link = TREE_CHAIN (link))
2120 tree label = shadow_label (TREE_VALUE (link));
2121 C_DECLARED_LABEL_FLAG (label) = 1;
2122 add_decl_stmt (label);
2127 /* This is the body of a function definition.
2128 It causes syntax errors to ignore to the next openbrace. */
2135 compstmt_start: '{' { compstmt_count++;
2136 $$ = c_begin_compound_stmt (); }
2138 compstmt_nostart: '}'
2139 { $$ = convert (void_type_node, integer_zero_node); }
2140 | pushlevel maybe_label_decls compstmt_contents_nonempty '}' poplevel
2141 { $$ = poplevel (kept_level_p (), 1, 0);
2142 SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
2143 = SCOPE_STMT_BLOCK (TREE_VALUE ($5))
2147 compstmt_contents_nonempty:
2152 compstmt_primary_start:
2154 { if (current_function_decl == 0)
2156 error ("braced-group within expression allowed only inside a function");
2159 /* We must force a BLOCK for this level
2160 so that, if it is not expanded later,
2161 there is a way to turn off the entire subtree of blocks
2162 that are contained in it. */
2164 push_label_level ();
2166 $$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
2169 compstmt: compstmt_start compstmt_nostart
2170 { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2171 last_expr_type = NULL_TREE;
2175 /* Value is number of statements counted as of the closeparen. */
2177 if_prefix c99_block_lineno_labeled_stmt
2178 { c_finish_then (); }
2179 /* Make sure c_expand_end_cond is run once
2180 for each call to c_expand_start_cond.
2181 Otherwise a crash is likely. */
2186 /* We must build the IF_STMT node before parsing its
2187 condition so that STMT_LINENO refers to the line
2188 containing the "if", and not the line containing
2189 the close-parenthesis.
2191 c_begin_if_stmt returns the IF_STMT node, which
2192 we later pass to c_expand_start_cond to fill
2193 in the condition and other tidbits. */
2195 { $<ttype>$ = c_begin_if_stmt (); }
2197 { c_expand_start_cond (c_common_truthvalue_conversion ($4),
2198 compstmt_count,$<ttype>2);
2199 $<itype>$ = stmt_count;
2200 if_stmt_file = $<filename>-2;
2201 if_stmt_line = $<lineno>-1; }
2204 /* This is a subroutine of stmt.
2205 It is used twice, once for valid DO statements
2206 and once for catching errors in parsing the end test. */
2212 = add_stmt (build_stmt (DO_STMT, NULL_TREE,
2214 /* In the event that a parse error prevents
2215 parsing the complete do-statement, set the
2216 condition now. Otherwise, we can get crashes at
2217 RTL-generation time. */
2218 DO_COND ($<ttype>$) = error_mark_node; }
2219 c99_block_lineno_labeled_stmt WHILE
2221 RECHAIN_STMTS ($$, DO_BODY ($$)); }
2224 /* The forced readahead in here is because we might be at the end of a
2225 line, and the line and file won't be bumped until yylex absorbs the
2226 first token on the next line. */
2228 { if (yychar == YYEMPTY)
2230 $$ = input_filename; }
2234 { if (yychar == YYEMPTY)
2239 lineno_labeled_stmt:
2241 | lineno_label lineno_labeled_stmt
2244 /* Like lineno_labeled_stmt, but a block in C99. */
2245 c99_block_lineno_labeled_stmt:
2246 c99_block_start lineno_labeled_stmt c99_block_end
2248 RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); }
2252 save_filename save_lineno stmt
2255 STMT_LINENO ($3) = $2;
2256 /* ??? We currently have no way of recording
2257 the filename for a statement. This probably
2258 matters little in practice at the moment,
2259 but I suspect that problems will occur when
2260 doing inlining at the tree level. */
2266 save_filename save_lineno label
2269 STMT_LINENO ($3) = $2;
2274 select_or_iter_stmt:
2276 { c_expand_start_else ();
2277 $<itype>1 = stmt_count; }
2278 c99_block_lineno_labeled_stmt
2280 c_expand_end_cond ();
2281 if (extra_warnings && stmt_count == $<itype>1)
2282 warning ("empty body in an else-statement"); }
2283 | simple_if %prec IF
2284 { c_expand_end_cond ();
2285 /* This warning is here instead of in simple_if, because we
2286 do not want a warning if an empty if is followed by an
2287 else statement. Increment stmt_count so we don't
2288 give a second error if this is a nested `if'. */
2289 if (extra_warnings && stmt_count++ == $<itype>1)
2290 warning_with_file_and_line (if_stmt_file, if_stmt_line,
2291 "empty body in an if-statement"); }
2292 /* Make sure c_expand_end_cond is run once
2293 for each call to c_expand_start_cond.
2294 Otherwise a crash is likely. */
2295 | simple_if ELSE error
2296 { c_expand_end_cond (); }
2297 /* We must build the WHILE_STMT node before parsing its
2298 condition so that STMT_LINENO refers to the line
2299 containing the "while", and not the line containing
2300 the close-parenthesis.
2302 c_begin_while_stmt returns the WHILE_STMT node, which
2303 we later pass to c_finish_while_stmt_cond to fill
2304 in the condition and other tidbits. */
2307 $<ttype>$ = c_begin_while_stmt (); }
2309 { $4 = c_common_truthvalue_conversion ($4);
2310 c_finish_while_stmt_cond
2311 (c_common_truthvalue_conversion ($4), $<ttype>2);
2312 $<ttype>$ = add_stmt ($<ttype>2); }
2313 c99_block_lineno_labeled_stmt
2314 { RECHAIN_STMTS ($<ttype>6, WHILE_BODY ($<ttype>6)); }
2317 { DO_COND ($1) = c_common_truthvalue_conversion ($3); }
2318 | do_stmt_start error
2321 { $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
2322 NULL_TREE, NULL_TREE);
2323 add_stmt ($<ttype>$); }
2326 RECHAIN_STMTS ($<ttype>2, FOR_INIT_STMT ($<ttype>2)); }
2329 FOR_COND ($<ttype>2)
2330 = c_common_truthvalue_conversion ($6); }
2332 { FOR_EXPR ($<ttype>2) = $9; }
2333 c99_block_lineno_labeled_stmt
2334 { RECHAIN_STMTS ($<ttype>2, FOR_BODY ($<ttype>2)); }
2335 | SWITCH '(' expr ')'
2337 $<ttype>$ = c_start_case ($3); }
2338 c99_block_lineno_labeled_stmt
2339 { c_finish_case (); }
2344 { add_stmt (build_stmt (EXPR_STMT, $1)); }
2346 { check_for_loop_decls (); }
2349 /* Parse a single real statement, not including any labels. */
2352 { stmt_count++; $$ = $1; }
2355 $$ = c_expand_expr_stmt ($1); }
2356 | c99_block_start select_or_iter_stmt c99_block_end
2358 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2362 $$ = add_stmt (build_break_stmt ()); }
2365 $$ = add_stmt (build_continue_stmt ()); }
2368 $$ = c_expand_return (NULL_TREE); }
2371 $$ = c_expand_return ($2); }
2372 | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
2374 $$ = simple_asm_stmt ($4); }
2375 /* This is the case with just output operands. */
2376 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
2378 $$ = build_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
2379 /* This is the case with input operands as well. */
2380 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2381 asm_operands ')' ';'
2383 $$ = build_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
2384 /* This is the case with clobbered registers as well. */
2385 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2386 asm_operands ':' asm_clobbers ')' ';'
2388 $$ = build_asm_stmt ($2, $4, $6, $8, $10); }
2389 | GOTO identifier ';'
2392 decl = lookup_label ($2);
2395 TREE_USED (decl) = 1;
2396 $$ = add_stmt (build_stmt (GOTO_STMT, decl));
2403 pedwarn ("ISO C forbids `goto *expr;'");
2405 $3 = convert (ptr_type_node, $3);
2406 $$ = add_stmt (build_stmt (GOTO_STMT, $3)); }
2411 /* Any kind of label, including jump labels and case labels.
2412 ANSI C accepts labels only before statements, but we allow them
2413 also at the end of a compound statement. */
2415 label: CASE expr_no_commas ':'
2417 $$ = do_case ($2, NULL_TREE); }
2418 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
2420 $$ = do_case ($2, $4); }
2423 $$ = do_case (NULL_TREE, NULL_TREE); }
2424 | identifier save_filename save_lineno ':' maybe_attribute
2425 { tree label = define_label ($2, $3, $1);
2429 decl_attributes (&label, $5, 0);
2430 $$ = add_stmt (build_stmt (LABEL_STMT, label));
2437 /* Either a type-qualifier or nothing. First thing in an `asm' statement. */
2441 { emit_line_note (input_filename, lineno);
2444 { emit_line_note (input_filename, lineno); }
2453 /* These are the operands other than the first string and colon
2454 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
2455 asm_operands: /* empty */
2457 | nonnull_asm_operands
2460 nonnull_asm_operands:
2462 | nonnull_asm_operands ',' asm_operand
2463 { $$ = chainon ($1, $3); }
2468 { $$ = build_tree_list (build_tree_list (NULL_TREE, $1), $3); }
2469 | '[' identifier ']' STRING '(' expr ')'
2470 { $$ = build_tree_list (build_tree_list ($2, $4), $6); }
2475 { $$ = tree_cons (NULL_TREE, combine_strings ($1), NULL_TREE); }
2476 | asm_clobbers ',' string
2477 { $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
2480 /* This is what appears inside the parens in a function declarator.
2481 Its value is a list of ..._TYPE nodes. Attributes must appear here
2482 to avoid a conflict with their appearance after an open parenthesis
2483 in an abstract declarator, as in
2484 "void bar (int (__attribute__((__mode__(SI))) int foo));". */
2488 clear_parm_order ();
2489 declare_parm_level (0); }
2492 parmlist_tags_warning ();
2493 poplevel (0, 0, 0); }
2501 pedwarn ("ISO C forbids forward parameter declarations");
2502 /* Mark the forward decls as such. */
2503 for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
2504 TREE_ASM_WRITTEN (parm) = 1;
2505 clear_parm_order (); }
2507 { /* Dummy action so attributes are in known place
2508 on parser stack. */ }
2512 { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
2515 /* This is what appears inside the parens in a function declarator.
2516 Is value is represented in the format that grokdeclarator expects. */
2517 parmlist_2: /* empty */
2518 { $$ = get_parm_info (0); }
2520 { $$ = get_parm_info (0);
2521 /* Gcc used to allow this as an extension. However, it does
2522 not work for all targets, and thus has been disabled.
2523 Also, since func (...) and func () are indistinguishable,
2524 it caused problems with the code in expand_builtin which
2525 tries to verify that BUILT_IN_NEXT_ARG is being used
2527 error ("ISO C requires a named argument before `...'");
2530 { $$ = get_parm_info (1); }
2531 | parms ',' ELLIPSIS
2532 { $$ = get_parm_info (0); }
2537 { push_parm_decl ($1); }
2539 { push_parm_decl ($3); }
2542 /* A single parameter declaration or parameter type name,
2543 as found in a parmlist. */
2545 declspecs_ts setspecs parm_declarator maybe_attribute
2546 { $$ = build_tree_list (build_tree_list (current_declspecs,
2548 chainon ($4, all_prefix_attributes));
2549 POP_DECLSPEC_STACK; }
2550 | declspecs_ts setspecs notype_declarator maybe_attribute
2551 { $$ = build_tree_list (build_tree_list (current_declspecs,
2553 chainon ($4, all_prefix_attributes));
2554 POP_DECLSPEC_STACK; }
2555 | declspecs_ts setspecs absdcl_maybe_attribute
2557 POP_DECLSPEC_STACK; }
2558 | declspecs_nots setspecs notype_declarator maybe_attribute
2559 { $$ = build_tree_list (build_tree_list (current_declspecs,
2561 chainon ($4, all_prefix_attributes));
2562 POP_DECLSPEC_STACK; }
2564 | declspecs_nots setspecs absdcl_maybe_attribute
2566 POP_DECLSPEC_STACK; }
2569 /* The first parm, which must suck attributes from off the top of the parser
2572 declspecs_ts_nosa setspecs_fp parm_declarator maybe_attribute
2573 { $$ = build_tree_list (build_tree_list (current_declspecs,
2575 chainon ($4, all_prefix_attributes));
2576 POP_DECLSPEC_STACK; }
2577 | declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
2578 { $$ = build_tree_list (build_tree_list (current_declspecs,
2580 chainon ($4, all_prefix_attributes));
2581 POP_DECLSPEC_STACK; }
2582 | declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
2584 POP_DECLSPEC_STACK; }
2585 | declspecs_nots_nosa setspecs_fp notype_declarator maybe_attribute
2586 { $$ = build_tree_list (build_tree_list (current_declspecs,
2588 chainon ($4, all_prefix_attributes));
2589 POP_DECLSPEC_STACK; }
2591 | declspecs_nots_nosa setspecs_fp absdcl_maybe_attribute
2593 POP_DECLSPEC_STACK; }
2598 { prefix_attributes = chainon (prefix_attributes, $<ttype>-2);
2599 all_prefix_attributes = prefix_attributes; }
2602 /* This is used in a function definition
2603 where either a parmlist or an identifier list is ok.
2604 Its value is a list of ..._TYPE nodes or a list of identifiers. */
2605 parmlist_or_identifiers:
2608 clear_parm_order ();
2609 declare_parm_level (1); }
2610 parmlist_or_identifiers_1
2612 parmlist_tags_warning ();
2613 poplevel (0, 0, 0); }
2616 parmlist_or_identifiers_1:
2620 for (t = $1; t; t = TREE_CHAIN (t))
2621 if (TREE_VALUE (t) == NULL_TREE)
2622 error ("`...' in old-style identifier list");
2623 $$ = tree_cons (NULL_TREE, NULL_TREE, $1);
2625 /* Make sure we have a parmlist after attributes. */
2627 && (TREE_CODE ($$) != TREE_LIST
2628 || TREE_PURPOSE ($$) == 0
2629 || TREE_CODE (TREE_PURPOSE ($$)) != PARM_DECL))
2634 /* A nonempty list of identifiers. */
2637 { $$ = build_tree_list (NULL_TREE, $1); }
2638 | identifiers ',' IDENTIFIER
2639 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2642 /* A nonempty list of identifiers, including typenames. */
2643 identifiers_or_typenames:
2645 { $$ = build_tree_list (NULL_TREE, $1); }
2646 | identifiers_or_typenames ',' identifier
2647 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2652 { $$ = SAVE_WARN_FLAGS();
2654 warn_pointer_arith = 0;
2655 warn_traditional = 0; }
2659 /* Objective-C productions. */
2669 if (objc_implementation_context)
2671 finish_class (objc_implementation_context);
2672 objc_ivar_chain = NULL_TREE;
2673 objc_implementation_context = NULL_TREE;
2676 warning ("`@end' must appear in an implementation context");
2680 /* A nonempty list of identifiers. */
2683 { $$ = build_tree_list (NULL_TREE, $1); }
2684 | identifier_list ',' identifier
2685 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2689 CLASS identifier_list ';'
2691 objc_declare_class ($2);
2695 ALIAS identifier identifier ';'
2697 objc_declare_alias ($2, $3);
2701 INTERFACE identifier protocolrefs '{'
2703 objc_interface_context = objc_ivar_context
2704 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2705 objc_public_flag = 0;
2709 continue_class (objc_interface_context);
2714 finish_class (objc_interface_context);
2715 objc_interface_context = NULL_TREE;
2718 | INTERFACE identifier protocolrefs
2720 objc_interface_context
2721 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2722 continue_class (objc_interface_context);
2727 finish_class (objc_interface_context);
2728 objc_interface_context = NULL_TREE;
2731 | INTERFACE identifier ':' identifier protocolrefs '{'
2733 objc_interface_context = objc_ivar_context
2734 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2735 objc_public_flag = 0;
2739 continue_class (objc_interface_context);
2744 finish_class (objc_interface_context);
2745 objc_interface_context = NULL_TREE;
2748 | INTERFACE identifier ':' identifier protocolrefs
2750 objc_interface_context
2751 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2752 continue_class (objc_interface_context);
2757 finish_class (objc_interface_context);
2758 objc_interface_context = NULL_TREE;
2761 | IMPLEMENTATION identifier '{'
2763 objc_implementation_context = objc_ivar_context
2764 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2765 objc_public_flag = 0;
2770 = continue_class (objc_implementation_context);
2773 | IMPLEMENTATION identifier
2775 objc_implementation_context
2776 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2778 = continue_class (objc_implementation_context);
2781 | IMPLEMENTATION identifier ':' identifier '{'
2783 objc_implementation_context = objc_ivar_context
2784 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2785 objc_public_flag = 0;
2790 = continue_class (objc_implementation_context);
2793 | IMPLEMENTATION identifier ':' identifier
2795 objc_implementation_context
2796 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2798 = continue_class (objc_implementation_context);
2801 | INTERFACE identifier '(' identifier ')' protocolrefs
2803 objc_interface_context
2804 = start_class (CATEGORY_INTERFACE_TYPE, $2, $4, $6);
2805 continue_class (objc_interface_context);
2810 finish_class (objc_interface_context);
2811 objc_interface_context = NULL_TREE;
2814 | IMPLEMENTATION identifier '(' identifier ')'
2816 objc_implementation_context
2817 = start_class (CATEGORY_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2819 = continue_class (objc_implementation_context);
2824 PROTOCOL identifier protocolrefs
2826 objc_pq_context = 1;
2827 objc_interface_context
2828 = start_protocol(PROTOCOL_INTERFACE_TYPE, $2, $3);
2832 objc_pq_context = 0;
2833 finish_protocol(objc_interface_context);
2834 objc_interface_context = NULL_TREE;
2836 /* The @protocol forward-declaration production introduces a
2837 reduce/reduce conflict on ';', which should be resolved in
2838 favor of the production 'identifier_list -> identifier'. */
2839 | PROTOCOL identifier_list ';'
2841 objc_declare_protocols ($2);
2850 | non_empty_protocolrefs
2853 non_empty_protocolrefs:
2854 ARITHCOMPARE identifier_list ARITHCOMPARE
2856 if ($1 == LT_EXPR && $3 == GT_EXPR)
2864 ivar_decl_list visibility_spec ivar_decls
2869 PRIVATE { objc_public_flag = 2; }
2870 | PROTECTED { objc_public_flag = 0; }
2871 | PUBLIC { objc_public_flag = 1; }
2879 | ivar_decls ivar_decl ';'
2883 pedwarn ("extra semicolon in struct or union specified");
2888 /* There is a shift-reduce conflict here, because `components' may
2889 start with a `typename'. It happens that shifting (the default resolution)
2890 does the right thing, because it treats the `typename' as part of
2891 a `typed_typespecs'.
2893 It is possible that this same technique would allow the distinction
2894 between `notype_initdecls' and `initdecls' to be eliminated.
2895 But I am being cautious and not trying it. */
2898 declspecs_nosc_ts setspecs ivars
2900 POP_DECLSPEC_STACK; }
2901 | declspecs_nosc_nots setspecs ivars
2903 POP_DECLSPEC_STACK; }
2912 | ivars ',' maybe_resetattrs ivar_declarator
2918 $$ = add_instance_variable (objc_ivar_context,
2920 $1, current_declspecs,
2923 | declarator ':' expr_no_commas
2925 $$ = add_instance_variable (objc_ivar_context,
2927 $1, current_declspecs, $3);
2929 | ':' expr_no_commas
2931 $$ = add_instance_variable (objc_ivar_context,
2934 current_declspecs, $2);
2940 { objc_inherit_code = CLASS_METHOD_DECL; }
2942 { objc_inherit_code = INSTANCE_METHOD_DECL; }
2948 objc_pq_context = 1;
2949 if (!objc_implementation_context)
2950 fatal_error ("method definition not in class context");
2954 objc_pq_context = 0;
2955 if (objc_inherit_code == CLASS_METHOD_DECL)
2956 add_class_method (objc_implementation_context, $3);
2958 add_instance_method (objc_implementation_context, $3);
2959 start_method_def ($3);
2963 continue_method_def ();
2967 finish_method_def ();
2971 /* the reason for the strange actions in this rule
2972 is so that notype_initdecls when reached via datadef
2973 can find a valid list of type and sc specs in $0. */
2977 | {$<ttype>$ = NULL_TREE; } methodprotolist2
2980 methodprotolist2: /* eliminates a shift/reduce conflict */
2983 | methodprotolist2 methodproto
2984 | methodprotolist2 {$<ttype>$ = NULL_TREE; } datadef
2995 /* Remember protocol qualifiers in prototypes. */
2996 objc_pq_context = 1;
3000 /* Forget protocol qualifiers here. */
3001 objc_pq_context = 0;
3002 if (objc_inherit_code == CLASS_METHOD_DECL)
3003 add_class_method (objc_interface_context, $3);
3005 add_instance_method (objc_interface_context, $3);
3011 '(' typename ')' unaryselector
3013 $$ = build_method_decl (objc_inherit_code, $2, $4, NULL_TREE);
3018 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, NULL_TREE);
3021 | '(' typename ')' keywordselector optparmlist
3023 $$ = build_method_decl (objc_inherit_code, $2, $4, $5);
3026 | keywordselector optparmlist
3028 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, $2);
3032 /* "optarglist" assumes that start_method_def has already been called...
3033 if it is not, the "xdecls" will not be placed in the proper scope */
3040 /* to get around the following situation: "int foo (int a) int b; {}" that
3041 is synthesized when parsing "- a:a b:b; id c; id d; { ... }" */
3056 declspecs_ts setspecs myparms ';'
3057 { POP_DECLSPEC_STACK; }
3059 { shadow_tag ($1); }
3060 | declspecs_nots ';'
3061 { pedwarn ("empty declaration"); }
3066 { push_parm_decl ($1); }
3067 | myparms ',' myparm
3068 { push_parm_decl ($3); }
3071 /* A single parameter declaration or parameter type name,
3072 as found in a parmlist. DOES NOT ALLOW AN INITIALIZER OR ASMSPEC */
3075 parm_declarator maybe_attribute
3076 { $$ = build_tree_list (build_tree_list (current_declspecs,
3078 chainon ($2, all_prefix_attributes)); }
3079 | notype_declarator maybe_attribute
3080 { $$ = build_tree_list (build_tree_list (current_declspecs,
3082 chainon ($2, all_prefix_attributes)); }
3083 | absdcl_maybe_attribute
3094 /* oh what a kludge! */
3095 $$ = objc_ellipsis_node;
3103 /* returns a tree list node generated by get_parm_info */
3116 | keywordselector keyworddecl
3118 $$ = chainon ($1, $2);
3131 ENUM | STRUCT | UNION | IF | ELSE | WHILE | DO | FOR
3132 | SWITCH | CASE | DEFAULT | BREAK | CONTINUE | RETURN
3133 | GOTO | ASM_KEYWORD | SIZEOF | TYPEOF | ALIGNOF
3134 | TYPESPEC | TYPE_QUAL
3138 selector ':' '(' typename ')' identifier
3140 $$ = build_keyword_decl ($1, $4, $6);
3143 | selector ':' identifier
3145 $$ = build_keyword_decl ($1, NULL_TREE, $3);
3148 | ':' '(' typename ')' identifier
3150 $$ = build_keyword_decl (NULL_TREE, $3, $5);
3155 $$ = build_keyword_decl (NULL_TREE, NULL_TREE, $2);
3166 | keywordarglist keywordarg
3168 $$ = chainon ($1, $2);
3176 if (TREE_CHAIN ($1) == NULL_TREE)
3177 /* just return the expr., remove a level of indirection */
3178 $$ = TREE_VALUE ($1);
3180 /* we have a comma expr., we will collapse later */
3186 selector ':' keywordexpr
3188 $$ = build_tree_list ($1, $3);
3192 $$ = build_tree_list (NULL_TREE, $2);
3200 $$ = get_class_reference ($1);
3206 { objc_receiver_context = 1; }
3208 { objc_receiver_context = 0; }
3211 $$ = build_tree_list ($3, $5);
3222 | keywordnamelist keywordname
3224 $$ = chainon ($1, $2);
3231 $$ = build_tree_list ($1, NULL_TREE);
3235 $$ = build_tree_list (NULL_TREE, NULL_TREE);
3240 SELECTOR '(' selectorarg ')'
3247 PROTOCOL '(' identifier ')'
3253 /* extension to support C-structures in the archiver */
3256 ENCODE '(' typename ')'
3258 $$ = groktypename ($3);
3265 /* yylex() is a thin wrapper around c_lex(), all it does is translate
3266 cpplib.h's token codes into yacc's token codes. */
3268 static enum cpp_ttype last_token;
3270 /* The reserved keyword table. */
3274 ENUM_BITFIELD(rid) rid : 16;
3275 unsigned int disable : 16;
3278 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
3280 #define D_C89 0x01 /* not in C89 */
3281 #define D_EXT 0x02 /* GCC extension */
3282 #define D_EXT89 0x04 /* GCC extension incorporated in C99 */
3283 #define D_OBJC 0x08 /* Objective C only */
3285 static const struct resword reswords[] =
3287 { "_Bool", RID_BOOL, 0 },
3288 { "_Complex", RID_COMPLEX, 0 },
3289 { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
3290 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
3291 { "__alignof", RID_ALIGNOF, 0 },
3292 { "__alignof__", RID_ALIGNOF, 0 },
3293 { "__asm", RID_ASM, 0 },
3294 { "__asm__", RID_ASM, 0 },
3295 { "__attribute", RID_ATTRIBUTE, 0 },
3296 { "__attribute__", RID_ATTRIBUTE, 0 },
3297 { "__bounded", RID_BOUNDED, 0 },
3298 { "__bounded__", RID_BOUNDED, 0 },
3299 { "__builtin_choose_expr", RID_CHOOSE_EXPR, 0 },
3300 { "__builtin_types_compatible_p", RID_TYPES_COMPATIBLE_P, 0 },
3301 { "__builtin_va_arg", RID_VA_ARG, 0 },
3302 { "__complex", RID_COMPLEX, 0 },
3303 { "__complex__", RID_COMPLEX, 0 },
3304 { "__const", RID_CONST, 0 },
3305 { "__const__", RID_CONST, 0 },
3306 { "__extension__", RID_EXTENSION, 0 },
3307 { "__func__", RID_C99_FUNCTION_NAME, 0 },
3308 { "__imag", RID_IMAGPART, 0 },
3309 { "__imag__", RID_IMAGPART, 0 },
3310 { "__inline", RID_INLINE, 0 },
3311 { "__inline__", RID_INLINE, 0 },
3312 { "__label__", RID_LABEL, 0 },
3313 { "__ptrbase", RID_PTRBASE, 0 },
3314 { "__ptrbase__", RID_PTRBASE, 0 },
3315 { "__ptrextent", RID_PTREXTENT, 0 },
3316 { "__ptrextent__", RID_PTREXTENT, 0 },
3317 { "__ptrvalue", RID_PTRVALUE, 0 },
3318 { "__ptrvalue__", RID_PTRVALUE, 0 },
3319 { "__real", RID_REALPART, 0 },
3320 { "__real__", RID_REALPART, 0 },
3321 { "__restrict", RID_RESTRICT, 0 },
3322 { "__restrict__", RID_RESTRICT, 0 },
3323 { "__signed", RID_SIGNED, 0 },
3324 { "__signed__", RID_SIGNED, 0 },
3325 { "__typeof", RID_TYPEOF, 0 },
3326 { "__typeof__", RID_TYPEOF, 0 },
3327 { "__unbounded", RID_UNBOUNDED, 0 },
3328 { "__unbounded__", RID_UNBOUNDED, 0 },
3329 { "__volatile", RID_VOLATILE, 0 },
3330 { "__volatile__", RID_VOLATILE, 0 },
3331 { "asm", RID_ASM, D_EXT },
3332 { "auto", RID_AUTO, 0 },
3333 { "break", RID_BREAK, 0 },
3334 { "case", RID_CASE, 0 },
3335 { "char", RID_CHAR, 0 },
3336 { "const", RID_CONST, 0 },
3337 { "continue", RID_CONTINUE, 0 },
3338 { "default", RID_DEFAULT, 0 },
3339 { "do", RID_DO, 0 },
3340 { "double", RID_DOUBLE, 0 },
3341 { "else", RID_ELSE, 0 },
3342 { "enum", RID_ENUM, 0 },
3343 { "extern", RID_EXTERN, 0 },
3344 { "float", RID_FLOAT, 0 },
3345 { "for", RID_FOR, 0 },
3346 { "goto", RID_GOTO, 0 },
3347 { "if", RID_IF, 0 },
3348 { "inline", RID_INLINE, D_EXT89 },
3349 { "int", RID_INT, 0 },
3350 { "long", RID_LONG, 0 },
3351 { "register", RID_REGISTER, 0 },
3352 { "restrict", RID_RESTRICT, D_C89 },
3353 { "return", RID_RETURN, 0 },
3354 { "short", RID_SHORT, 0 },
3355 { "signed", RID_SIGNED, 0 },
3356 { "sizeof", RID_SIZEOF, 0 },
3357 { "static", RID_STATIC, 0 },
3358 { "struct", RID_STRUCT, 0 },
3359 { "switch", RID_SWITCH, 0 },
3360 { "typedef", RID_TYPEDEF, 0 },
3361 { "typeof", RID_TYPEOF, D_EXT },
3362 { "union", RID_UNION, 0 },
3363 { "unsigned", RID_UNSIGNED, 0 },
3364 { "void", RID_VOID, 0 },
3365 { "volatile", RID_VOLATILE, 0 },
3366 { "while", RID_WHILE, 0 },
3368 { "id", RID_ID, D_OBJC },
3370 /* These objc keywords are recognized only immediately after
3372 { "class", RID_AT_CLASS, D_OBJC },
3373 { "compatibility_alias", RID_AT_ALIAS, D_OBJC },
3374 { "defs", RID_AT_DEFS, D_OBJC },
3375 { "encode", RID_AT_ENCODE, D_OBJC },
3376 { "end", RID_AT_END, D_OBJC },
3377 { "implementation", RID_AT_IMPLEMENTATION, D_OBJC },
3378 { "interface", RID_AT_INTERFACE, D_OBJC },
3379 { "private", RID_AT_PRIVATE, D_OBJC },
3380 { "protected", RID_AT_PROTECTED, D_OBJC },
3381 { "protocol", RID_AT_PROTOCOL, D_OBJC },
3382 { "public", RID_AT_PUBLIC, D_OBJC },
3383 { "selector", RID_AT_SELECTOR, D_OBJC },
3385 /* These are recognized only in protocol-qualifier context
3387 { "bycopy", RID_BYCOPY, D_OBJC },
3388 { "byref", RID_BYREF, D_OBJC },
3389 { "in", RID_IN, D_OBJC },
3390 { "inout", RID_INOUT, D_OBJC },
3391 { "oneway", RID_ONEWAY, D_OBJC },
3392 { "out", RID_OUT, D_OBJC },
3395 #define N_reswords (sizeof reswords / sizeof (struct resword))
3397 /* Table mapping from RID_* constants to yacc token numbers.
3398 Unfortunately we have to have entries for all the keywords in all
3400 static const short rid_to_yy[RID_MAX] =
3402 /* RID_STATIC */ STATIC,
3403 /* RID_UNSIGNED */ TYPESPEC,
3404 /* RID_LONG */ TYPESPEC,
3405 /* RID_CONST */ TYPE_QUAL,
3406 /* RID_EXTERN */ SCSPEC,
3407 /* RID_REGISTER */ SCSPEC,
3408 /* RID_TYPEDEF */ SCSPEC,
3409 /* RID_SHORT */ TYPESPEC,
3410 /* RID_INLINE */ SCSPEC,
3411 /* RID_VOLATILE */ TYPE_QUAL,
3412 /* RID_SIGNED */ TYPESPEC,
3413 /* RID_AUTO */ SCSPEC,
3414 /* RID_RESTRICT */ TYPE_QUAL,
3417 /* RID_BOUNDED */ TYPE_QUAL,
3418 /* RID_UNBOUNDED */ TYPE_QUAL,
3419 /* RID_COMPLEX */ TYPESPEC,
3423 /* RID_VIRTUAL */ 0,
3424 /* RID_EXPLICIT */ 0,
3426 /* RID_MUTABLE */ 0,
3429 /* RID_IN */ TYPE_QUAL,
3430 /* RID_OUT */ TYPE_QUAL,
3431 /* RID_INOUT */ TYPE_QUAL,
3432 /* RID_BYCOPY */ TYPE_QUAL,
3433 /* RID_BYREF */ TYPE_QUAL,
3434 /* RID_ONEWAY */ TYPE_QUAL,
3437 /* RID_INT */ TYPESPEC,
3438 /* RID_CHAR */ TYPESPEC,
3439 /* RID_FLOAT */ TYPESPEC,
3440 /* RID_DOUBLE */ TYPESPEC,
3441 /* RID_VOID */ TYPESPEC,
3442 /* RID_ENUM */ ENUM,
3443 /* RID_STRUCT */ STRUCT,
3444 /* RID_UNION */ UNION,
3446 /* RID_ELSE */ ELSE,
3447 /* RID_WHILE */ WHILE,
3450 /* RID_SWITCH */ SWITCH,
3451 /* RID_CASE */ CASE,
3452 /* RID_DEFAULT */ DEFAULT,
3453 /* RID_BREAK */ BREAK,
3454 /* RID_CONTINUE */ CONTINUE,
3455 /* RID_RETURN */ RETURN,
3456 /* RID_GOTO */ GOTO,
3457 /* RID_SIZEOF */ SIZEOF,
3460 /* RID_ASM */ ASM_KEYWORD,
3461 /* RID_TYPEOF */ TYPEOF,
3462 /* RID_ALIGNOF */ ALIGNOF,
3463 /* RID_ATTRIBUTE */ ATTRIBUTE,
3464 /* RID_VA_ARG */ VA_ARG,
3465 /* RID_EXTENSION */ EXTENSION,
3466 /* RID_IMAGPART */ IMAGPART,
3467 /* RID_REALPART */ REALPART,
3468 /* RID_LABEL */ LABEL,
3469 /* RID_PTRBASE */ PTR_BASE,
3470 /* RID_PTREXTENT */ PTR_EXTENT,
3471 /* RID_PTRVALUE */ PTR_VALUE,
3473 /* RID_CHOOSE_EXPR */ CHOOSE_EXPR,
3474 /* RID_TYPES_COMPATIBLE_P */ TYPES_COMPATIBLE_P,
3476 /* RID_FUNCTION_NAME */ STRING_FUNC_NAME,
3477 /* RID_PRETTY_FUNCTION_NAME */ STRING_FUNC_NAME,
3478 /* RID_C99_FUNCTION_NAME */ VAR_FUNC_NAME,
3481 /* RID_BOOL */ TYPESPEC,
3485 /* RID_PRIVATE */ 0,
3486 /* RID_PROTECTED */ 0,
3487 /* RID_TEMPLATE */ 0,
3492 /* RID_NAMESPACE */ 0,
3494 /* RID_OPERATOR */ 0,
3499 /* RID_TYPENAME */ 0,
3504 /* RID_CONSTCAST */ 0,
3505 /* RID_DYNCAST */ 0,
3506 /* RID_REINTCAST */ 0,
3507 /* RID_STATCAST */ 0,
3509 /* alternate spellings */
3523 /* RID_ID */ OBJECTNAME,
3524 /* RID_AT_ENCODE */ ENCODE,
3525 /* RID_AT_END */ END,
3526 /* RID_AT_CLASS */ CLASS,
3527 /* RID_AT_ALIAS */ ALIAS,
3528 /* RID_AT_DEFS */ DEFS,
3529 /* RID_AT_PRIVATE */ PRIVATE,
3530 /* RID_AT_PROTECTED */ PROTECTED,
3531 /* RID_AT_PUBLIC */ PUBLIC,
3532 /* RID_AT_PROTOCOL */ PROTOCOL,
3533 /* RID_AT_SELECTOR */ SELECTOR,
3534 /* RID_AT_INTERFACE */ INTERFACE,
3535 /* RID_AT_IMPLEMENTATION */ IMPLEMENTATION
3543 int mask = (flag_isoc99 ? 0 : D_C89)
3544 | (flag_no_asm ? (flag_isoc99 ? D_EXT : D_EXT|D_EXT89) : 0);
3546 if (c_language != clk_objective_c)
3549 /* It is not necessary to register ridpointers as a GC root, because
3550 all the trees it points to are permanently interned in the
3551 get_identifier hash anyway. */
3552 ridpointers = (tree *) xcalloc ((int) RID_MAX, sizeof (tree));
3553 for (i = 0; i < N_reswords; i++)
3555 /* If a keyword is disabled, do not enter it into the table
3556 and so create a canonical spelling that isn't a keyword. */
3557 if (reswords[i].disable & mask)
3560 id = get_identifier (reswords[i].word);
3561 C_RID_CODE (id) = reswords[i].rid;
3562 C_IS_RESERVED_WORD (id) = 1;
3563 ridpointers [(int) reswords[i].rid] = id;
3567 #define NAME(type) cpp_type2name (type)
3573 const char *string = _(msgid);
3575 if (last_token == CPP_EOF)
3576 error ("%s at end of input", string);
3577 else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
3579 unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
3580 const char *const ell = (last_token == CPP_CHAR) ? "" : "L";
3581 if (val <= UCHAR_MAX && ISGRAPH (val))
3582 error ("%s before %s'%c'", string, ell, val);
3584 error ("%s before %s'\\x%x'", string, ell, val);
3586 else if (last_token == CPP_STRING
3587 || last_token == CPP_WSTRING)
3588 error ("%s before string constant", string);
3589 else if (last_token == CPP_NUMBER)
3590 error ("%s before numeric constant", string);
3591 else if (last_token == CPP_NAME)
3592 error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
3594 error ("%s before '%s' token", string, NAME(last_token));
3603 int objc_force_identifier = objc_need_raw_identifier;
3604 OBJC_NEED_RAW_IDENTIFIER (0);
3607 if (C_IS_RESERVED_WORD (yylval.ttype))
3609 enum rid rid_code = C_RID_CODE (yylval.ttype);
3612 /* Turn non-typedefed refs to "id" into plain identifiers; this
3613 allows constructs like "void foo(id id);" to work. */
3614 if (rid_code == RID_ID)
3616 decl = lookup_name (yylval.ttype);
3617 if (decl == NULL_TREE || TREE_CODE (decl) != TYPE_DECL)
3621 if (!OBJC_IS_AT_KEYWORD (rid_code)
3622 && (!OBJC_IS_PQ_KEYWORD (rid_code) || objc_pq_context))
3625 int yycode = rid_to_yy[(int) rid_code];
3626 if (yycode == STRING_FUNC_NAME)
3628 /* __FUNCTION__ and __PRETTY_FUNCTION__ get converted
3629 to string constants. */
3630 const char *name = fname_string (rid_code);
3632 yylval.ttype = build_string (strlen (name) + 1, name);
3633 C_ARTIFICIAL_STRING_P (yylval.ttype) = 1;
3634 last_token = CPP_STRING; /* so yyerror won't choke */
3638 /* Return the canonical spelling for this keyword. */
3639 yylval.ttype = ridpointers[(int) rid_code];
3644 decl = lookup_name (yylval.ttype);
3647 if (TREE_CODE (decl) == TYPE_DECL)
3653 tree objc_interface_decl = is_class_name (yylval.ttype);
3654 /* ObjC class names are in the same namespace as variables and
3655 typedefs, and hence are shadowed by local declarations. */
3656 if (objc_interface_decl
3657 && (global_bindings_p ()
3658 || (!objc_force_identifier && !decl)))
3660 yylval.ttype = objc_interface_decl;
3674 last_token = c_lex (&yylval.ttype);
3677 case CPP_EQ: return '=';
3678 case CPP_NOT: return '!';
3679 case CPP_GREATER: yylval.code = GT_EXPR; return ARITHCOMPARE;
3680 case CPP_LESS: yylval.code = LT_EXPR; return ARITHCOMPARE;
3681 case CPP_PLUS: yylval.code = PLUS_EXPR; return '+';
3682 case CPP_MINUS: yylval.code = MINUS_EXPR; return '-';
3683 case CPP_MULT: yylval.code = MULT_EXPR; return '*';
3684 case CPP_DIV: yylval.code = TRUNC_DIV_EXPR; return '/';
3685 case CPP_MOD: yylval.code = TRUNC_MOD_EXPR; return '%';
3686 case CPP_AND: yylval.code = BIT_AND_EXPR; return '&';
3687 case CPP_OR: yylval.code = BIT_IOR_EXPR; return '|';
3688 case CPP_XOR: yylval.code = BIT_XOR_EXPR; return '^';
3689 case CPP_RSHIFT: yylval.code = RSHIFT_EXPR; return RSHIFT;
3690 case CPP_LSHIFT: yylval.code = LSHIFT_EXPR; return LSHIFT;
3692 case CPP_COMPL: return '~';
3693 case CPP_AND_AND: return ANDAND;
3694 case CPP_OR_OR: return OROR;
3695 case CPP_QUERY: return '?';
3696 case CPP_OPEN_PAREN: return '(';
3697 case CPP_EQ_EQ: yylval.code = EQ_EXPR; return EQCOMPARE;
3698 case CPP_NOT_EQ: yylval.code = NE_EXPR; return EQCOMPARE;
3699 case CPP_GREATER_EQ:yylval.code = GE_EXPR; return ARITHCOMPARE;
3700 case CPP_LESS_EQ: yylval.code = LE_EXPR; return ARITHCOMPARE;
3702 case CPP_PLUS_EQ: yylval.code = PLUS_EXPR; return ASSIGN;
3703 case CPP_MINUS_EQ: yylval.code = MINUS_EXPR; return ASSIGN;
3704 case CPP_MULT_EQ: yylval.code = MULT_EXPR; return ASSIGN;
3705 case CPP_DIV_EQ: yylval.code = TRUNC_DIV_EXPR; return ASSIGN;
3706 case CPP_MOD_EQ: yylval.code = TRUNC_MOD_EXPR; return ASSIGN;
3707 case CPP_AND_EQ: yylval.code = BIT_AND_EXPR; return ASSIGN;
3708 case CPP_OR_EQ: yylval.code = BIT_IOR_EXPR; return ASSIGN;
3709 case CPP_XOR_EQ: yylval.code = BIT_XOR_EXPR; return ASSIGN;
3710 case CPP_RSHIFT_EQ: yylval.code = RSHIFT_EXPR; return ASSIGN;
3711 case CPP_LSHIFT_EQ: yylval.code = LSHIFT_EXPR; return ASSIGN;
3713 case CPP_OPEN_SQUARE: return '[';
3714 case CPP_CLOSE_SQUARE: return ']';
3715 case CPP_OPEN_BRACE: return '{';
3716 case CPP_CLOSE_BRACE: return '}';
3717 case CPP_ELLIPSIS: return ELLIPSIS;
3719 case CPP_PLUS_PLUS: return PLUSPLUS;
3720 case CPP_MINUS_MINUS: return MINUSMINUS;
3721 case CPP_DEREF: return POINTSAT;
3722 case CPP_DOT: return '.';
3724 /* The following tokens may affect the interpretation of any
3725 identifiers following, if doing Objective-C. */
3726 case CPP_COLON: OBJC_NEED_RAW_IDENTIFIER (0); return ':';
3727 case CPP_COMMA: OBJC_NEED_RAW_IDENTIFIER (0); return ',';
3728 case CPP_CLOSE_PAREN: OBJC_NEED_RAW_IDENTIFIER (0); return ')';
3729 case CPP_SEMICOLON: OBJC_NEED_RAW_IDENTIFIER (0); return ';';
3735 return yylexname ();
3746 /* This token is Objective-C specific. It gives the next token
3747 special significance. */
3752 enum cpp_ttype after_at_type;
3754 after_at_type = c_lex (&after_at);
3756 if (after_at_type == CPP_NAME
3757 && C_IS_RESERVED_WORD (after_at)
3758 && OBJC_IS_AT_KEYWORD (C_RID_CODE (after_at)))
3760 yylval.ttype = after_at;
3761 last_token = after_at_type;
3762 return rid_to_yy [(int) C_RID_CODE (after_at)];
3764 _cpp_backup_tokens (parse_in, 1);
3769 /* These tokens are C++ specific (and will not be generated
3770 in C mode, but let's be cautious). */
3772 case CPP_DEREF_STAR:
3778 /* These tokens should not survive translation phase 4. */
3781 error ("syntax error at '%s' token", NAME(last_token));
3794 timevar_push (TV_LEX);
3796 timevar_pop (TV_LEX);
3800 /* Sets the value of the 'yydebug' variable to VALUE.
3801 This is a function so we don't have to have YYDEBUG defined
3802 in order to build the compiler. */
3805 c_set_yydebug (value)
3811 warning ("YYDEBUG not defined");
3815 /* Function used when yydebug is set, to print a token in more detail. */
3818 yyprint (file, yychar, yyl)
3825 fprintf (file, " [%s]", NAME(last_token));
3836 if (IDENTIFIER_POINTER (t))
3837 fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
3841 fprintf (file, " %s", GET_MODE_NAME (TYPE_MODE (TREE_TYPE (t))));
3842 if (TREE_CODE (t) == INTEGER_CST)
3844 #if HOST_BITS_PER_WIDE_INT == 64
3845 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
3848 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
3855 #if HOST_BITS_PER_WIDE_INT != HOST_BITS_PER_INT
3861 TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
3866 /* This is not the ideal place to put these, but we have to get them out
3867 of c-lex.c because cp/lex.c has its own versions. */
3869 /* Return something to represent absolute declarators containing a *.
3870 TARGET is the absolute declarator that the * contains.
3871 TYPE_QUALS_ATTRS is a list of modifiers such as const or volatile
3872 to apply to the pointer type, represented as identifiers, possible mixed
3875 We return an INDIRECT_REF whose "contents" are TARGET (inside a TREE_LIST,
3876 if attributes are present) and whose type is the modifier list. */
3879 make_pointer_declarator (type_quals_attrs, target)
3880 tree type_quals_attrs, target;
3883 tree itarget = target;
3884 split_specs_attrs (type_quals_attrs, &quals, &attrs);
3885 if (attrs != NULL_TREE)
3886 itarget = tree_cons (attrs, target, NULL_TREE);
3887 return build1 (INDIRECT_REF, quals, itarget);