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 GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
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. */
54 #include "diagnostic.h"
56 #ifdef MULTIBYTE_CHARS
64 /* Since parsers are distinct for each language, put the language string
67 const char * const language_string = "GNU Objective-C";
70 const char * const language_string = "GNU C";
73 /* Like YYERROR but do call yyerror. */
74 #define YYERROR1 { yyerror ("syntax error"); YYERROR; }
76 /* Cause the "yydebug" variable to be defined. */
79 /* Rename the "yyparse" function so that we can override it elsewhere. */
80 #define yyparse yyparse_1
85 %union {long itype; tree ttype; enum tree_code code;
86 const char *filename; int lineno; }
88 /* All identifiers that are not reserved words
89 and are not declared typedefs in the current block */
92 /* All identifiers that are declared typedefs in the current block.
93 In some contexts, they are treated just like IDENTIFIER,
94 but they can also serve as typespecs in declarations. */
97 /* Reserved words that specify storage class.
98 yylval contains an IDENTIFIER_NODE which indicates which one. */
101 /* Reserved words that specify type.
102 yylval contains an IDENTIFIER_NODE which indicates which one. */
105 /* Reserved words that qualify type: "const", "volatile", or "restrict".
106 yylval contains an IDENTIFIER_NODE which indicates which one. */
109 /* Character or numeric constants.
110 yylval is the node for the constant. */
113 /* String constants in raw form.
114 yylval is a STRING_CST node. */
117 /* "...", used for functions with variable arglists. */
120 /* the reserved words */
121 /* SCO include files test "ASM", so use something else. */
122 %token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
123 %token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
124 %token ATTRIBUTE EXTENSION LABEL
125 %token REALPART IMAGPART VA_ARG
126 %token PTR_VALUE PTR_BASE PTR_EXTENT
128 /* function name can be a string const or a var decl. */
129 %token STRING_FUNC_NAME VAR_FUNC_NAME
131 /* Add precedence rules to solve dangling else s/r conflict */
135 /* Define the operator tokens and their precedences.
136 The value is an integer because, if used, it is the tree code
137 to use in the expression made from the operator. */
139 %right <code> ASSIGN '='
140 %right <code> '?' ':'
146 %left <code> EQCOMPARE
147 %left <code> ARITHCOMPARE
148 %left <code> LSHIFT RSHIFT
150 %left <code> '*' '/' '%'
151 %right <code> UNARY PLUSPLUS MINUSMINUS
153 %left <code> POINTSAT '.' '(' '['
155 /* The Objective-C keywords. These are included in C and in
156 Objective C, so that the token codes are the same in both. */
157 %token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
158 %token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
161 %type <ttype> ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
162 %type <ttype> BREAK CONTINUE RETURN GOTO ASM_KEYWORD SIZEOF TYPEOF ALIGNOF
164 %type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
165 %type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
166 %type <ttype> declspecs_nosc_nots_nosa_noea declspecs_nosc_nots_nosa_ea
167 %type <ttype> declspecs_nosc_nots_sa_noea declspecs_nosc_nots_sa_ea
168 %type <ttype> declspecs_nosc_ts_nosa_noea declspecs_nosc_ts_nosa_ea
169 %type <ttype> declspecs_nosc_ts_sa_noea declspecs_nosc_ts_sa_ea
170 %type <ttype> declspecs_sc_nots_nosa_noea declspecs_sc_nots_nosa_ea
171 %type <ttype> declspecs_sc_nots_sa_noea declspecs_sc_nots_sa_ea
172 %type <ttype> declspecs_sc_ts_nosa_noea declspecs_sc_ts_nosa_ea
173 %type <ttype> declspecs_sc_ts_sa_noea declspecs_sc_ts_sa_ea
174 %type <ttype> declspecs_ts declspecs_nots
175 %type <ttype> declspecs_ts_nosa declspecs_nots_nosa
176 %type <ttype> declspecs_nosc_ts declspecs_nosc_nots declspecs_nosc declspecs
177 %type <ttype> maybe_type_quals_setattrs typespec_nonattr typespec_attr
178 %type <ttype> typespec_reserved_nonattr typespec_reserved_attr
179 %type <ttype> typespec_nonreserved_nonattr
181 %type <ttype> SCSPEC TYPESPEC TYPE_QUAL maybe_type_qual
182 %type <ttype> initdecls notype_initdecls initdcl notype_initdcl
183 %type <ttype> init maybeasm
184 %type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
185 %type <ttype> maybe_attribute attributes attribute attribute_list attrib
186 %type <ttype> maybe_setattrs
187 %type <ttype> any_word extension
189 %type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
190 %type <ttype> do_stmt_start poplevel stmt label
192 %type <ttype> c99_block_start c99_block_end
193 %type <ttype> declarator
194 %type <ttype> notype_declarator after_type_declarator
195 %type <ttype> parm_declarator
196 %type <ttype> parm_declarator_starttypename parm_declarator_nostarttypename
197 %type <ttype> array_declarator
199 %type <ttype> structsp_attr structsp_nonattr
200 %type <ttype> component_decl_list component_decl_list2
201 %type <ttype> component_decl components components_notype component_declarator
202 %type <ttype> component_notype_declarator
203 %type <ttype> enumlist enumerator
204 %type <ttype> struct_head union_head enum_head
205 %type <ttype> typename absdcl absdcl1 absdcl1_ea absdcl1_noea
206 %type <ttype> direct_absdcl1 absdcl_maybe_attribute
207 %type <ttype> xexpr parms parm firstparm identifiers
209 %type <ttype> parmlist parmlist_1 parmlist_2
210 %type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
211 %type <ttype> identifiers_or_typenames
213 %type <itype> setspecs setspecs_fp
215 %type <filename> save_filename
216 %type <lineno> save_lineno
219 /* the Objective-C nonterminals */
221 %type <ttype> ivar_decl_list ivar_decls ivar_decl ivars ivar_declarator
222 %type <ttype> methoddecl unaryselector keywordselector selector
223 %type <ttype> keyworddecl receiver objcmessageexpr messageargs
224 %type <ttype> keywordexpr keywordarglist keywordarg
225 %type <ttype> myparms myparm optparmlist reservedwords objcselectorexpr
226 %type <ttype> selectorarg keywordnamelist keywordname objcencodeexpr
227 %type <ttype> objc_string non_empty_protocolrefs protocolrefs identifier_list objcprotocolexpr
229 %type <ttype> CLASSNAME OBJECTNAME
233 /* Number of statements (loosely speaking) and compound statements
235 static int stmt_count;
236 static int compstmt_count;
238 /* Input file and line number of the end of the body of last simple_if;
239 used by the stmt-rule immediately after simple_if returns. */
240 static const char *if_stmt_file;
241 static int if_stmt_line;
243 /* List of types and structure classes of the current declaration. */
244 static tree current_declspecs = NULL_TREE;
245 static tree prefix_attributes = NULL_TREE;
247 /* Stack of saved values of current_declspecs and prefix_attributes. */
248 static tree declspec_stack;
250 /* For __extension__, save/restore the warning flags which are
251 controlled by __extension__. */
252 #define SAVE_WARN_FLAGS() \
253 size_int (pedantic | (warn_pointer_arith << 1))
254 #define RESTORE_WARN_FLAGS(tval) \
256 int val = tree_low_cst (tval, 0); \
257 pedantic = val & 1; \
258 warn_pointer_arith = (val >> 1) & 1; \
262 /* Objective-C specific information */
264 tree objc_interface_context;
265 tree objc_implementation_context;
266 tree objc_method_context;
267 tree objc_ivar_chain;
268 tree objc_ivar_context;
269 enum tree_code objc_inherit_code;
270 int objc_receiver_context;
271 int objc_public_flag;
276 /* Tell yyparse how to print a token's value, if yydebug is set. */
278 #define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
280 static void yyprint PARAMS ((FILE *, int, YYSTYPE));
281 static void yyerror PARAMS ((const char *));
282 static int yylexname PARAMS ((void));
283 static inline int _yylex PARAMS ((void));
284 static int yylex PARAMS ((void));
285 static void init_reswords PARAMS ((void));
287 /* Add GC roots for variables local to this file. */
291 ggc_add_tree_root (&declspec_stack, 1);
292 ggc_add_tree_root (¤t_declspecs, 1);
293 ggc_add_tree_root (&prefix_attributes, 1);
295 ggc_add_tree_root (&objc_interface_context, 1);
296 ggc_add_tree_root (&objc_implementation_context, 1);
297 ggc_add_tree_root (&objc_method_context, 1);
298 ggc_add_tree_root (&objc_ivar_chain, 1);
299 ggc_add_tree_root (&objc_ivar_context, 1);
308 pedwarn ("ISO C forbids an empty source file");
313 /* In case there were missing closebraces,
314 get us back to the global binding level. */
315 while (! global_bindings_p ())
318 finish_fname_decls ();
324 /* the reason for the strange actions in this rule
325 is so that notype_initdecls when reached via datadef
326 can find a valid list of type and sc specs in $0. */
329 {$<ttype>$ = NULL_TREE; } extdef
330 | extdefs {$<ttype>$ = NULL_TREE; ggc_collect(); } extdef
339 | ASM_KEYWORD '(' expr ')' ';'
341 if ((TREE_CODE ($3) == ADDR_EXPR
342 && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
343 || TREE_CODE ($3) == STRING_CST)
346 error ("argument of `asm' is not a constant string"); }
348 { RESTORE_WARN_FLAGS ($1); }
352 setspecs notype_initdecls ';'
354 error ("ISO C forbids data definition with no type or storage class");
355 else if (!flag_traditional)
356 warning ("data definition has no type or storage class");
358 current_declspecs = TREE_VALUE (declspec_stack);
359 prefix_attributes = TREE_PURPOSE (declspec_stack);
360 declspec_stack = TREE_CHAIN (declspec_stack); }
361 | declspecs_nots setspecs notype_initdecls ';'
362 { current_declspecs = TREE_VALUE (declspec_stack);
363 prefix_attributes = TREE_PURPOSE (declspec_stack);
364 declspec_stack = TREE_CHAIN (declspec_stack); }
365 | declspecs_ts setspecs initdecls ';'
366 { current_declspecs = TREE_VALUE (declspec_stack);
367 prefix_attributes = TREE_PURPOSE (declspec_stack);
368 declspec_stack = TREE_CHAIN (declspec_stack); }
375 pedwarn ("ISO C does not allow extra `;' outside of a function"); }
379 declspecs_ts setspecs declarator
380 { if (! start_function (current_declspecs, $3,
381 prefix_attributes, NULL_TREE))
385 { store_parm_decls (); }
386 save_filename save_lineno compstmt_or_error
387 { DECL_SOURCE_FILE (current_function_decl) = $7;
388 DECL_SOURCE_LINE (current_function_decl) = $8;
390 current_declspecs = TREE_VALUE (declspec_stack);
391 prefix_attributes = TREE_PURPOSE (declspec_stack);
392 declspec_stack = TREE_CHAIN (declspec_stack); }
393 | declspecs_ts setspecs declarator error
394 { current_declspecs = TREE_VALUE (declspec_stack);
395 prefix_attributes = TREE_PURPOSE (declspec_stack);
396 declspec_stack = TREE_CHAIN (declspec_stack); }
397 | declspecs_nots setspecs notype_declarator
398 { if (! start_function (current_declspecs, $3,
399 prefix_attributes, NULL_TREE))
403 { store_parm_decls (); }
404 save_filename save_lineno compstmt_or_error
405 { DECL_SOURCE_FILE (current_function_decl) = $7;
406 DECL_SOURCE_LINE (current_function_decl) = $8;
408 current_declspecs = TREE_VALUE (declspec_stack);
409 prefix_attributes = TREE_PURPOSE (declspec_stack);
410 declspec_stack = TREE_CHAIN (declspec_stack); }
411 | declspecs_nots setspecs notype_declarator error
412 { current_declspecs = TREE_VALUE (declspec_stack);
413 prefix_attributes = TREE_PURPOSE (declspec_stack);
414 declspec_stack = TREE_CHAIN (declspec_stack); }
415 | setspecs notype_declarator
416 { if (! start_function (NULL_TREE, $2,
417 prefix_attributes, NULL_TREE))
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;
426 current_declspecs = TREE_VALUE (declspec_stack);
427 prefix_attributes = TREE_PURPOSE (declspec_stack);
428 declspec_stack = TREE_CHAIN (declspec_stack); }
429 | setspecs notype_declarator error
430 { current_declspecs = TREE_VALUE (declspec_stack);
431 prefix_attributes = TREE_PURPOSE (declspec_stack);
432 declspec_stack = TREE_CHAIN (declspec_stack); }
447 { $$ = NEGATE_EXPR; }
451 if (warn_traditional && !in_system_header)
452 warning ("traditional C rejects the unary plus operator");
456 { $$ = PREINCREMENT_EXPR; }
458 { $$ = PREDECREMENT_EXPR; }
460 { $$ = BIT_NOT_EXPR; }
462 { $$ = TRUTH_NOT_EXPR; }
465 expr: nonnull_exprlist
466 { $$ = build_compound_expr ($1); }
477 { $$ = build_tree_list (NULL_TREE, $1); }
478 | nonnull_exprlist ',' expr_no_commas
479 { chainon ($1, build_tree_list (NULL_TREE, $3)); }
484 | '*' cast_expr %prec UNARY
485 { $$ = build_indirect_ref ($2, "unary *"); }
486 /* __extension__ turns off -pedantic for following primary. */
487 | extension cast_expr %prec UNARY
489 RESTORE_WARN_FLAGS ($1); }
490 | unop cast_expr %prec UNARY
491 { $$ = build_unary_op ($1, $2, 0);
492 overflow_warning ($$); }
493 /* Refer to the address of a label as a pointer. */
495 { $$ = finish_label_address_expr ($2); }
496 /* This seems to be impossible on some machines, so let's turn it off.
497 You can use __builtin_next_arg to find the anonymous stack args.
499 { tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
500 $$ = error_mark_node;
501 if (TREE_VALUE (tree_last (types)) == void_type_node)
502 error ("`&...' used in function with fixed number of arguments");
506 pedwarn ("ISO C forbids `&...'");
507 $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
508 $$ = build_unary_op (ADDR_EXPR, $$, 0);
511 | sizeof unary_expr %prec UNARY
513 if (TREE_CODE ($2) == COMPONENT_REF
514 && DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
515 error ("`sizeof' applied to a bit-field");
516 $$ = c_sizeof (TREE_TYPE ($2)); }
517 | sizeof '(' typename ')' %prec HYPERUNARY
519 $$ = c_sizeof (groktypename ($3)); }
520 | alignof unary_expr %prec UNARY
522 $$ = c_alignof_expr ($2); }
523 | alignof '(' typename ')' %prec HYPERUNARY
525 $$ = c_alignof (groktypename ($3)); }
526 | REALPART cast_expr %prec UNARY
527 { $$ = build_unary_op (REALPART_EXPR, $2, 0); }
528 | IMAGPART cast_expr %prec UNARY
529 { $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
533 SIZEOF { skip_evaluation++; }
537 ALIGNOF { skip_evaluation++; }
542 | '(' typename ')' cast_expr %prec UNARY
543 { $$ = c_cast_expr ($2, $4); }
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 { $$ = parser_build_binary_op ($2, $1, $3); }
554 | expr_no_commas '/' expr_no_commas
555 { $$ = parser_build_binary_op ($2, $1, $3); }
556 | expr_no_commas '%' expr_no_commas
557 { $$ = parser_build_binary_op ($2, $1, $3); }
558 | expr_no_commas LSHIFT expr_no_commas
559 { $$ = parser_build_binary_op ($2, $1, $3); }
560 | expr_no_commas RSHIFT expr_no_commas
561 { $$ = parser_build_binary_op ($2, $1, $3); }
562 | expr_no_commas ARITHCOMPARE expr_no_commas
563 { $$ = parser_build_binary_op ($2, $1, $3); }
564 | expr_no_commas EQCOMPARE 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 '|' expr_no_commas
569 { $$ = parser_build_binary_op ($2, $1, $3); }
570 | expr_no_commas '^' expr_no_commas
571 { $$ = parser_build_binary_op ($2, $1, $3); }
572 | expr_no_commas ANDAND
573 { $1 = truthvalue_conversion (default_conversion ($1));
574 skip_evaluation += $1 == boolean_false_node; }
576 { skip_evaluation -= $1 == boolean_false_node;
577 $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
578 | expr_no_commas OROR
579 { $1 = truthvalue_conversion (default_conversion ($1));
580 skip_evaluation += $1 == boolean_true_node; }
582 { skip_evaluation -= $1 == boolean_true_node;
583 $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
585 { $1 = truthvalue_conversion (default_conversion ($1));
586 skip_evaluation += $1 == boolean_false_node; }
588 { skip_evaluation += (($1 == boolean_true_node)
589 - ($1 == boolean_false_node)); }
591 { skip_evaluation -= $1 == boolean_true_node;
592 $$ = build_conditional_expr ($1, $4, $7); }
595 pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
596 /* Make sure first operand is calculated only once. */
597 $<ttype>2 = save_expr ($1);
598 $1 = truthvalue_conversion (default_conversion ($<ttype>2));
599 skip_evaluation += $1 == boolean_true_node; }
601 { skip_evaluation -= $1 == boolean_true_node;
602 $$ = 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 (class == 'e' || class == '1'
608 || class == '2' || class == '<')
609 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
611 | expr_no_commas ASSIGN expr_no_commas
613 $$ = build_modify_expr ($1, $2, $3);
614 /* This inhibits warnings in truthvalue_conversion. */
615 class = TREE_CODE_CLASS (TREE_CODE ($$));
616 if (class == 'e' || class == '1'
617 || class == '2' || class == '<')
618 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
625 if (yychar == YYEMPTY)
627 $$ = build_external_ref ($1, yychar == '(');
631 { $$ = combine_strings ($1); }
633 { $$ = fname_decl (C_RID_CODE ($$), $$); }
634 | '(' typename ')' '{'
635 { start_init (NULL_TREE, NULL, 0);
636 $2 = groktypename ($2);
637 really_start_incremental_init ($2); }
638 initlist_maybe_comma '}' %prec UNARY
640 tree result = pop_init_level (0);
644 if (pedantic && ! flag_isoc99)
645 pedwarn ("ISO C89 forbids compound literals");
646 if (TYPE_NAME (type) != 0)
648 if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
649 name = IDENTIFIER_POINTER (TYPE_NAME (type));
651 name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
656 if (TREE_CODE (type) == ARRAY_TYPE && !COMPLETE_TYPE_P (type))
658 int failure = complete_array_type (type, $$, 1);
664 { char class = TREE_CODE_CLASS (TREE_CODE ($2));
665 if (class == 'e' || class == '1'
666 || class == '2' || class == '<')
667 C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
670 { $$ = error_mark_node; }
671 | compstmt_primary_start compstmt_nostart ')'
672 { tree saved_last_tree;
675 pedwarn ("ISO C forbids braced-groups within expressions");
678 saved_last_tree = COMPOUND_BODY ($1);
679 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
680 last_tree = saved_last_tree;
681 TREE_CHAIN (last_tree) = NULL_TREE;
683 last_expr_type = void_type_node;
684 $$ = build1 (STMT_EXPR, last_expr_type, $1);
685 TREE_SIDE_EFFECTS ($$) = 1;
687 | compstmt_primary_start error ')'
690 last_tree = COMPOUND_BODY ($1);
691 TREE_CHAIN (last_tree) = NULL_TREE;
692 $$ = error_mark_node;
694 | primary '(' exprlist ')' %prec '.'
695 { $$ = build_function_call ($1, $3); }
696 | VA_ARG '(' expr_no_commas ',' typename ')'
697 { $$ = build_va_arg ($3, groktypename ($5)); }
698 | primary '[' expr ']' %prec '.'
699 { $$ = build_array_ref ($1, $3); }
700 | primary '.' identifier
703 if (!is_public ($1, $3))
704 $$ = error_mark_node;
707 $$ = build_component_ref ($1, $3);
709 | primary POINTSAT identifier
711 tree expr = build_indirect_ref ($1, "->");
714 if (!is_public (expr, $3))
715 $$ = error_mark_node;
718 $$ = build_component_ref (expr, $3);
721 { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
723 { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
726 { $$ = build_message_expr ($1); }
728 { $$ = build_selector_expr ($1); }
730 { $$ = build_protocol_expr ($1); }
732 { $$ = build_encode_expr ($1); }
734 { $$ = build_objc_string_object ($1); }
738 /* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
744 static int last_lineno = 0;
745 static const char *last_input_filename = 0;
747 $$ = chainon ($1, $2);
749 if (warn_traditional && !in_system_header
750 && (lineno != last_lineno || !last_input_filename ||
751 strcmp (last_input_filename, input_filename)))
753 warning ("traditional C rejects string concatenation");
754 last_lineno = lineno;
755 last_input_filename = input_filename;
762 /* Produces an STRING_CST with perhaps more STRING_CSTs chained
763 onto it, which is to be read as an ObjC string object. */
767 | objc_string '@' STRING
768 { $$ = chainon ($1, $3); }
772 old_style_parm_decls:
776 /* ... is used here to indicate a varargs function. */
779 pedwarn ("ISO C does not permit use of `varargs.h'"); }
782 /* The following are analogous to lineno_decl, decls and decl
783 except that they do not allow nested functions.
784 They are used for old-style parm decls. */
786 save_filename save_lineno datadecl
793 | datadecls lineno_datadecl
794 | lineno_datadecl errstmt
797 /* We don't allow prefix attributes here because they cause reduce/reduce
798 conflicts: we can't know whether we're parsing a function decl with
799 attribute suffix, or function defn with attribute prefix on first old
802 declspecs_ts_nosa setspecs initdecls ';'
803 { current_declspecs = TREE_VALUE (declspec_stack);
804 prefix_attributes = TREE_PURPOSE (declspec_stack);
805 declspec_stack = TREE_CHAIN (declspec_stack); }
806 | declspecs_nots_nosa setspecs notype_initdecls ';'
807 { current_declspecs = TREE_VALUE (declspec_stack);
808 prefix_attributes = TREE_PURPOSE (declspec_stack);
809 declspec_stack = TREE_CHAIN (declspec_stack); }
810 | declspecs_ts_nosa ';'
811 { shadow_tag_warned ($1, 1);
812 pedwarn ("empty declaration"); }
813 | declspecs_nots_nosa ';'
814 { pedwarn ("empty declaration"); }
817 /* This combination which saves a lineno before a decl
818 is the normal thing to use, rather than decl itself.
819 This is to avoid shift/reduce conflicts in contexts
820 where statement labels are allowed. */
822 save_filename save_lineno decl
826 /* records the type and storage class specs to use for processing
827 the declarators that follow.
828 Maintains a stack of outer-level values of current_declspecs,
829 for the sake of parm declarations nested in function declarators. */
830 setspecs: /* empty */
831 { pending_xref_error ();
832 declspec_stack = tree_cons (prefix_attributes,
835 split_specs_attrs ($<ttype>0,
836 ¤t_declspecs, &prefix_attributes); }
839 /* ??? Yuck. See maybe_setattrs. */
840 setattrs: /* empty */
841 { prefix_attributes = chainon (prefix_attributes, $<ttype>0); }
845 /* ??? Yuck. setattrs is a quick hack. We can't use
846 prefix_attributes because $1 only applies to this
847 declarator. We assume setspecs has already been done.
848 setattrs also avoids 5 reduce/reduce conflicts (otherwise multiple
849 attributes could be recognized here or in `attributes').
850 Properly attributes ought to be able to apply to any level of
851 nested declarator, but the necessary compiler support isn't
852 present, so the attributes apply to a declaration (which may be
854 maybe_attribute setattrs
858 declspecs_ts setspecs initdecls ';'
859 { current_declspecs = TREE_VALUE (declspec_stack);
860 prefix_attributes = TREE_PURPOSE (declspec_stack);
861 declspec_stack = TREE_CHAIN (declspec_stack); }
862 | declspecs_nots setspecs notype_initdecls ';'
863 { current_declspecs = TREE_VALUE (declspec_stack);
864 prefix_attributes = TREE_PURPOSE (declspec_stack);
865 declspec_stack = TREE_CHAIN (declspec_stack); }
866 | declspecs_ts setspecs nested_function
867 { current_declspecs = TREE_VALUE (declspec_stack);
868 prefix_attributes = TREE_PURPOSE (declspec_stack);
869 declspec_stack = TREE_CHAIN (declspec_stack); }
870 | declspecs_nots setspecs notype_nested_function
871 { current_declspecs = TREE_VALUE (declspec_stack);
872 prefix_attributes = TREE_PURPOSE (declspec_stack);
873 declspec_stack = TREE_CHAIN (declspec_stack); }
877 { RESTORE_WARN_FLAGS ($1); }
880 /* A list of declaration specifiers. These are:
882 - Storage class specifiers (SCSPEC), which for GCC currently include
883 function specifiers ("inline").
885 - Type specifiers (typespec_*).
887 - Type qualifiers (TYPE_QUAL).
889 - Attribute specifier lists (attributes).
891 These are stored as a TREE_LIST; the head of the list is the last
892 item in the specifier list. Each entry in the list has either a
893 TREE_PURPOSE that is an attribute specifier list, or a TREE_VALUE that
894 is a single other specifier or qualifier; and a TREE_CHAIN that is the
895 rest of the list. TREE_STATIC is set on the list if something other
896 than a storage class specifier or attribute has been seen; this is used
897 to warn for the obsolescent usage of storage class specifiers other than
898 at the start of the list. (Doing this properly would require function
899 specifiers to be handled separately from storage class specifiers.)
901 The various cases below are classified according to:
903 (a) Whether a storage class specifier is included or not; some
904 places in the grammar disallow storage class specifiers (_sc or _nosc).
906 (b) Whether a type specifier has been seen; after a type specifier,
907 a typedef name is an identifier to redeclare (_ts or _nots).
909 (c) Whether the list starts with an attribute; in certain places,
910 the grammar requires specifiers that don't start with an attribute
913 (d) Whether the list ends with an attribute (or a specifier such that
914 any following attribute would have been parsed as part of that specifier);
915 this avoids shift-reduce conflicts in the parsing of attributes
920 (i) Distinguish between function specifiers and storage class specifiers,
921 at least for the purpose of warnings about obsolescent usage.
923 (ii) Halve the number of productions here by eliminating the _sc/_nosc
924 distinction and instead checking where required that storage class
925 specifiers aren't present. */
927 /* Declspecs which contain at least one type specifier or typedef name.
928 (Just `const' or `volatile' is not enough.)
929 A typedef'd name following these is taken as a name to be declared.
930 Declspecs have a non-NULL TREE_VALUE, attributes do not. */
932 declspecs_nosc_nots_nosa_noea:
934 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
935 TREE_STATIC ($$) = 1; }
936 | declspecs_nosc_nots_nosa_noea TYPE_QUAL
937 { $$ = tree_cons (NULL_TREE, $2, $1);
938 TREE_STATIC ($$) = 1; }
939 | declspecs_nosc_nots_nosa_ea TYPE_QUAL
940 { $$ = tree_cons (NULL_TREE, $2, $1);
941 TREE_STATIC ($$) = 1; }
944 declspecs_nosc_nots_nosa_ea:
945 declspecs_nosc_nots_nosa_noea attributes
946 { $$ = tree_cons ($2, NULL_TREE, $1);
947 TREE_STATIC ($$) = TREE_STATIC ($1); }
950 declspecs_nosc_nots_sa_noea:
951 declspecs_nosc_nots_sa_noea TYPE_QUAL
952 { $$ = tree_cons (NULL_TREE, $2, $1);
953 TREE_STATIC ($$) = 1; }
954 | declspecs_nosc_nots_sa_ea TYPE_QUAL
955 { $$ = tree_cons (NULL_TREE, $2, $1);
956 TREE_STATIC ($$) = 1; }
959 declspecs_nosc_nots_sa_ea:
961 { $$ = tree_cons ($1, NULL_TREE, NULL_TREE);
962 TREE_STATIC ($$) = 0; }
963 | declspecs_nosc_nots_sa_noea attributes
964 { $$ = tree_cons ($2, NULL_TREE, $1);
965 TREE_STATIC ($$) = TREE_STATIC ($1); }
968 declspecs_nosc_ts_nosa_noea:
970 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
971 TREE_STATIC ($$) = 1; }
972 | declspecs_nosc_ts_nosa_noea TYPE_QUAL
973 { $$ = tree_cons (NULL_TREE, $2, $1);
974 TREE_STATIC ($$) = 1; }
975 | declspecs_nosc_ts_nosa_ea TYPE_QUAL
976 { $$ = tree_cons (NULL_TREE, $2, $1);
977 TREE_STATIC ($$) = 1; }
978 | declspecs_nosc_ts_nosa_noea typespec_reserved_nonattr
979 { $$ = tree_cons (NULL_TREE, $2, $1);
980 TREE_STATIC ($$) = 1; }
981 | declspecs_nosc_ts_nosa_ea typespec_reserved_nonattr
982 { $$ = tree_cons (NULL_TREE, $2, $1);
983 TREE_STATIC ($$) = 1; }
984 | declspecs_nosc_nots_nosa_noea typespec_nonattr
985 { $$ = tree_cons (NULL_TREE, $2, $1);
986 TREE_STATIC ($$) = 1; }
987 | declspecs_nosc_nots_nosa_ea typespec_nonattr
988 { $$ = tree_cons (NULL_TREE, $2, $1);
989 TREE_STATIC ($$) = 1; }
992 declspecs_nosc_ts_nosa_ea:
994 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
995 TREE_STATIC ($$) = 1; }
996 | declspecs_nosc_ts_nosa_noea attributes
997 { $$ = tree_cons ($2, NULL_TREE, $1);
998 TREE_STATIC ($$) = TREE_STATIC ($1); }
999 | declspecs_nosc_ts_nosa_noea typespec_reserved_attr
1000 { $$ = tree_cons (NULL_TREE, $2, $1);
1001 TREE_STATIC ($$) = 1; }
1002 | declspecs_nosc_ts_nosa_ea typespec_reserved_attr
1003 { $$ = tree_cons (NULL_TREE, $2, $1);
1004 TREE_STATIC ($$) = 1; }
1005 | declspecs_nosc_nots_nosa_noea typespec_attr
1006 { $$ = tree_cons (NULL_TREE, $2, $1);
1007 TREE_STATIC ($$) = 1; }
1008 | declspecs_nosc_nots_nosa_ea typespec_attr
1009 { $$ = tree_cons (NULL_TREE, $2, $1);
1010 TREE_STATIC ($$) = 1; }
1013 declspecs_nosc_ts_sa_noea:
1014 declspecs_nosc_ts_sa_noea TYPE_QUAL
1015 { $$ = tree_cons (NULL_TREE, $2, $1);
1016 TREE_STATIC ($$) = 1; }
1017 | declspecs_nosc_ts_sa_ea TYPE_QUAL
1018 { $$ = tree_cons (NULL_TREE, $2, $1);
1019 TREE_STATIC ($$) = 1; }
1020 | declspecs_nosc_ts_sa_noea typespec_reserved_nonattr
1021 { $$ = tree_cons (NULL_TREE, $2, $1);
1022 TREE_STATIC ($$) = 1; }
1023 | declspecs_nosc_ts_sa_ea typespec_reserved_nonattr
1024 { $$ = tree_cons (NULL_TREE, $2, $1);
1025 TREE_STATIC ($$) = 1; }
1026 | declspecs_nosc_nots_sa_noea typespec_nonattr
1027 { $$ = tree_cons (NULL_TREE, $2, $1);
1028 TREE_STATIC ($$) = 1; }
1029 | declspecs_nosc_nots_sa_ea typespec_nonattr
1030 { $$ = tree_cons (NULL_TREE, $2, $1);
1031 TREE_STATIC ($$) = 1; }
1034 declspecs_nosc_ts_sa_ea:
1035 declspecs_nosc_ts_sa_noea attributes
1036 { $$ = tree_cons ($2, NULL_TREE, $1);
1037 TREE_STATIC ($$) = TREE_STATIC ($1); }
1038 | declspecs_nosc_ts_sa_noea typespec_reserved_attr
1039 { $$ = tree_cons (NULL_TREE, $2, $1);
1040 TREE_STATIC ($$) = 1; }
1041 | declspecs_nosc_ts_sa_ea typespec_reserved_attr
1042 { $$ = tree_cons (NULL_TREE, $2, $1);
1043 TREE_STATIC ($$) = 1; }
1044 | declspecs_nosc_nots_sa_noea typespec_attr
1045 { $$ = tree_cons (NULL_TREE, $2, $1);
1046 TREE_STATIC ($$) = 1; }
1047 | declspecs_nosc_nots_sa_ea typespec_attr
1048 { $$ = tree_cons (NULL_TREE, $2, $1);
1049 TREE_STATIC ($$) = 1; }
1052 declspecs_sc_nots_nosa_noea:
1054 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
1055 TREE_STATIC ($$) = 0; }
1056 | declspecs_sc_nots_nosa_noea TYPE_QUAL
1057 { $$ = tree_cons (NULL_TREE, $2, $1);
1058 TREE_STATIC ($$) = 1; }
1059 | declspecs_sc_nots_nosa_ea TYPE_QUAL
1060 { $$ = tree_cons (NULL_TREE, $2, $1);
1061 TREE_STATIC ($$) = 1; }
1062 | declspecs_nosc_nots_nosa_noea SCSPEC
1063 { if (extra_warnings && TREE_STATIC ($1))
1064 warning ("`%s' is not at beginning of declaration",
1065 IDENTIFIER_POINTER ($2));
1066 $$ = tree_cons (NULL_TREE, $2, $1);
1067 TREE_STATIC ($$) = TREE_STATIC ($1); }
1068 | declspecs_nosc_nots_nosa_ea SCSPEC
1069 { if (extra_warnings && TREE_STATIC ($1))
1070 warning ("`%s' is not at beginning of declaration",
1071 IDENTIFIER_POINTER ($2));
1072 $$ = tree_cons (NULL_TREE, $2, $1);
1073 TREE_STATIC ($$) = TREE_STATIC ($1); }
1074 | declspecs_sc_nots_nosa_noea SCSPEC
1075 { if (extra_warnings && TREE_STATIC ($1))
1076 warning ("`%s' is not at beginning of declaration",
1077 IDENTIFIER_POINTER ($2));
1078 $$ = tree_cons (NULL_TREE, $2, $1);
1079 TREE_STATIC ($$) = TREE_STATIC ($1); }
1080 | declspecs_sc_nots_nosa_ea 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); }
1088 declspecs_sc_nots_nosa_ea:
1089 declspecs_sc_nots_nosa_noea attributes
1090 { $$ = tree_cons ($2, NULL_TREE, $1);
1091 TREE_STATIC ($$) = TREE_STATIC ($1); }
1094 declspecs_sc_nots_sa_noea:
1095 declspecs_sc_nots_sa_noea TYPE_QUAL
1096 { $$ = tree_cons (NULL_TREE, $2, $1);
1097 TREE_STATIC ($$) = 1; }
1098 | declspecs_sc_nots_sa_ea TYPE_QUAL
1099 { $$ = tree_cons (NULL_TREE, $2, $1);
1100 TREE_STATIC ($$) = 1; }
1101 | declspecs_nosc_nots_sa_noea SCSPEC
1102 { if (extra_warnings && TREE_STATIC ($1))
1103 warning ("`%s' is not at beginning of declaration",
1104 IDENTIFIER_POINTER ($2));
1105 $$ = tree_cons (NULL_TREE, $2, $1);
1106 TREE_STATIC ($$) = TREE_STATIC ($1); }
1107 | declspecs_nosc_nots_sa_ea SCSPEC
1108 { if (extra_warnings && TREE_STATIC ($1))
1109 warning ("`%s' is not at beginning of declaration",
1110 IDENTIFIER_POINTER ($2));
1111 $$ = tree_cons (NULL_TREE, $2, $1);
1112 TREE_STATIC ($$) = TREE_STATIC ($1); }
1113 | declspecs_sc_nots_sa_noea SCSPEC
1114 { if (extra_warnings && TREE_STATIC ($1))
1115 warning ("`%s' is not at beginning of declaration",
1116 IDENTIFIER_POINTER ($2));
1117 $$ = tree_cons (NULL_TREE, $2, $1);
1118 TREE_STATIC ($$) = TREE_STATIC ($1); }
1119 | declspecs_sc_nots_sa_ea SCSPEC
1120 { if (extra_warnings && TREE_STATIC ($1))
1121 warning ("`%s' is not at beginning of declaration",
1122 IDENTIFIER_POINTER ($2));
1123 $$ = tree_cons (NULL_TREE, $2, $1);
1124 TREE_STATIC ($$) = TREE_STATIC ($1); }
1127 declspecs_sc_nots_sa_ea:
1128 declspecs_sc_nots_sa_noea attributes
1129 { $$ = tree_cons ($2, NULL_TREE, $1);
1130 TREE_STATIC ($$) = TREE_STATIC ($1); }
1133 declspecs_sc_ts_nosa_noea:
1134 declspecs_sc_ts_nosa_noea TYPE_QUAL
1135 { $$ = tree_cons (NULL_TREE, $2, $1);
1136 TREE_STATIC ($$) = 1; }
1137 | declspecs_sc_ts_nosa_ea TYPE_QUAL
1138 { $$ = tree_cons (NULL_TREE, $2, $1);
1139 TREE_STATIC ($$) = 1; }
1140 | declspecs_sc_ts_nosa_noea typespec_reserved_nonattr
1141 { $$ = tree_cons (NULL_TREE, $2, $1);
1142 TREE_STATIC ($$) = 1; }
1143 | declspecs_sc_ts_nosa_ea typespec_reserved_nonattr
1144 { $$ = tree_cons (NULL_TREE, $2, $1);
1145 TREE_STATIC ($$) = 1; }
1146 | declspecs_sc_nots_nosa_noea typespec_nonattr
1147 { $$ = tree_cons (NULL_TREE, $2, $1);
1148 TREE_STATIC ($$) = 1; }
1149 | declspecs_sc_nots_nosa_ea typespec_nonattr
1150 { $$ = tree_cons (NULL_TREE, $2, $1);
1151 TREE_STATIC ($$) = 1; }
1152 | declspecs_nosc_ts_nosa_noea SCSPEC
1153 { if (extra_warnings && TREE_STATIC ($1))
1154 warning ("`%s' is not at beginning of declaration",
1155 IDENTIFIER_POINTER ($2));
1156 $$ = tree_cons (NULL_TREE, $2, $1);
1157 TREE_STATIC ($$) = TREE_STATIC ($1); }
1158 | declspecs_nosc_ts_nosa_ea SCSPEC
1159 { if (extra_warnings && TREE_STATIC ($1))
1160 warning ("`%s' is not at beginning of declaration",
1161 IDENTIFIER_POINTER ($2));
1162 $$ = tree_cons (NULL_TREE, $2, $1);
1163 TREE_STATIC ($$) = TREE_STATIC ($1); }
1164 | declspecs_sc_ts_nosa_noea SCSPEC
1165 { if (extra_warnings && TREE_STATIC ($1))
1166 warning ("`%s' is not at beginning of declaration",
1167 IDENTIFIER_POINTER ($2));
1168 $$ = tree_cons (NULL_TREE, $2, $1);
1169 TREE_STATIC ($$) = TREE_STATIC ($1); }
1170 | declspecs_sc_ts_nosa_ea SCSPEC
1171 { if (extra_warnings && TREE_STATIC ($1))
1172 warning ("`%s' is not at beginning of declaration",
1173 IDENTIFIER_POINTER ($2));
1174 $$ = tree_cons (NULL_TREE, $2, $1);
1175 TREE_STATIC ($$) = TREE_STATIC ($1); }
1178 declspecs_sc_ts_nosa_ea:
1179 declspecs_sc_ts_nosa_noea attributes
1180 { $$ = tree_cons ($2, NULL_TREE, $1);
1181 TREE_STATIC ($$) = TREE_STATIC ($1); }
1182 | declspecs_sc_ts_nosa_noea typespec_reserved_attr
1183 { $$ = tree_cons (NULL_TREE, $2, $1);
1184 TREE_STATIC ($$) = 1; }
1185 | declspecs_sc_ts_nosa_ea typespec_reserved_attr
1186 { $$ = tree_cons (NULL_TREE, $2, $1);
1187 TREE_STATIC ($$) = 1; }
1188 | declspecs_sc_nots_nosa_noea typespec_attr
1189 { $$ = tree_cons (NULL_TREE, $2, $1);
1190 TREE_STATIC ($$) = 1; }
1191 | declspecs_sc_nots_nosa_ea typespec_attr
1192 { $$ = tree_cons (NULL_TREE, $2, $1);
1193 TREE_STATIC ($$) = 1; }
1196 declspecs_sc_ts_sa_noea:
1197 declspecs_sc_ts_sa_noea TYPE_QUAL
1198 { $$ = tree_cons (NULL_TREE, $2, $1);
1199 TREE_STATIC ($$) = 1; }
1200 | declspecs_sc_ts_sa_ea TYPE_QUAL
1201 { $$ = tree_cons (NULL_TREE, $2, $1);
1202 TREE_STATIC ($$) = 1; }
1203 | declspecs_sc_ts_sa_noea typespec_reserved_nonattr
1204 { $$ = tree_cons (NULL_TREE, $2, $1);
1205 TREE_STATIC ($$) = 1; }
1206 | declspecs_sc_ts_sa_ea typespec_reserved_nonattr
1207 { $$ = tree_cons (NULL_TREE, $2, $1);
1208 TREE_STATIC ($$) = 1; }
1209 | declspecs_sc_nots_sa_noea typespec_nonattr
1210 { $$ = tree_cons (NULL_TREE, $2, $1);
1211 TREE_STATIC ($$) = 1; }
1212 | declspecs_sc_nots_sa_ea typespec_nonattr
1213 { $$ = tree_cons (NULL_TREE, $2, $1);
1214 TREE_STATIC ($$) = 1; }
1215 | declspecs_nosc_ts_sa_noea SCSPEC
1216 { if (extra_warnings && TREE_STATIC ($1))
1217 warning ("`%s' is not at beginning of declaration",
1218 IDENTIFIER_POINTER ($2));
1219 $$ = tree_cons (NULL_TREE, $2, $1);
1220 TREE_STATIC ($$) = TREE_STATIC ($1); }
1221 | declspecs_nosc_ts_sa_ea SCSPEC
1222 { if (extra_warnings && TREE_STATIC ($1))
1223 warning ("`%s' is not at beginning of declaration",
1224 IDENTIFIER_POINTER ($2));
1225 $$ = tree_cons (NULL_TREE, $2, $1);
1226 TREE_STATIC ($$) = TREE_STATIC ($1); }
1227 | declspecs_sc_ts_sa_noea SCSPEC
1228 { if (extra_warnings && TREE_STATIC ($1))
1229 warning ("`%s' is not at beginning of declaration",
1230 IDENTIFIER_POINTER ($2));
1231 $$ = tree_cons (NULL_TREE, $2, $1);
1232 TREE_STATIC ($$) = TREE_STATIC ($1); }
1233 | declspecs_sc_ts_sa_ea SCSPEC
1234 { if (extra_warnings && TREE_STATIC ($1))
1235 warning ("`%s' is not at beginning of declaration",
1236 IDENTIFIER_POINTER ($2));
1237 $$ = tree_cons (NULL_TREE, $2, $1);
1238 TREE_STATIC ($$) = TREE_STATIC ($1); }
1241 declspecs_sc_ts_sa_ea:
1242 declspecs_sc_ts_sa_noea attributes
1243 { $$ = tree_cons ($2, NULL_TREE, $1);
1244 TREE_STATIC ($$) = TREE_STATIC ($1); }
1245 | declspecs_sc_ts_sa_noea typespec_reserved_attr
1246 { $$ = tree_cons (NULL_TREE, $2, $1);
1247 TREE_STATIC ($$) = 1; }
1248 | declspecs_sc_ts_sa_ea typespec_reserved_attr
1249 { $$ = tree_cons (NULL_TREE, $2, $1);
1250 TREE_STATIC ($$) = 1; }
1251 | declspecs_sc_nots_sa_noea typespec_attr
1252 { $$ = tree_cons (NULL_TREE, $2, $1);
1253 TREE_STATIC ($$) = 1; }
1254 | declspecs_sc_nots_sa_ea typespec_attr
1255 { $$ = tree_cons (NULL_TREE, $2, $1);
1256 TREE_STATIC ($$) = 1; }
1259 /* Particular useful classes of declspecs. */
1261 declspecs_nosc_ts_nosa_noea
1262 | declspecs_nosc_ts_nosa_ea
1263 | declspecs_nosc_ts_sa_noea
1264 | declspecs_nosc_ts_sa_ea
1265 | declspecs_sc_ts_nosa_noea
1266 | declspecs_sc_ts_nosa_ea
1267 | declspecs_sc_ts_sa_noea
1268 | declspecs_sc_ts_sa_ea
1272 declspecs_nosc_nots_nosa_noea
1273 | declspecs_nosc_nots_nosa_ea
1274 | declspecs_nosc_nots_sa_noea
1275 | declspecs_nosc_nots_sa_ea
1276 | declspecs_sc_nots_nosa_noea
1277 | declspecs_sc_nots_nosa_ea
1278 | declspecs_sc_nots_sa_noea
1279 | declspecs_sc_nots_sa_ea
1283 declspecs_nosc_ts_nosa_noea
1284 | declspecs_nosc_ts_nosa_ea
1285 | declspecs_sc_ts_nosa_noea
1286 | declspecs_sc_ts_nosa_ea
1289 declspecs_nots_nosa:
1290 declspecs_nosc_nots_nosa_noea
1291 | declspecs_nosc_nots_nosa_ea
1292 | declspecs_sc_nots_nosa_noea
1293 | declspecs_sc_nots_nosa_ea
1297 declspecs_nosc_ts_nosa_noea
1298 | declspecs_nosc_ts_nosa_ea
1299 | declspecs_nosc_ts_sa_noea
1300 | declspecs_nosc_ts_sa_ea
1303 declspecs_nosc_nots:
1304 declspecs_nosc_nots_nosa_noea
1305 | declspecs_nosc_nots_nosa_ea
1306 | declspecs_nosc_nots_sa_noea
1307 | declspecs_nosc_nots_sa_ea
1311 declspecs_nosc_ts_nosa_noea
1312 | declspecs_nosc_ts_nosa_ea
1313 | declspecs_nosc_ts_sa_noea
1314 | declspecs_nosc_ts_sa_ea
1315 | declspecs_nosc_nots_nosa_noea
1316 | declspecs_nosc_nots_nosa_ea
1317 | declspecs_nosc_nots_sa_noea
1318 | declspecs_nosc_nots_sa_ea
1322 declspecs_nosc_nots_nosa_noea
1323 | declspecs_nosc_nots_nosa_ea
1324 | declspecs_nosc_nots_sa_noea
1325 | declspecs_nosc_nots_sa_ea
1326 | declspecs_nosc_ts_nosa_noea
1327 | declspecs_nosc_ts_nosa_ea
1328 | declspecs_nosc_ts_sa_noea
1329 | declspecs_nosc_ts_sa_ea
1330 | declspecs_sc_nots_nosa_noea
1331 | declspecs_sc_nots_nosa_ea
1332 | declspecs_sc_nots_sa_noea
1333 | declspecs_sc_nots_sa_ea
1334 | declspecs_sc_ts_nosa_noea
1335 | declspecs_sc_ts_nosa_ea
1336 | declspecs_sc_ts_sa_noea
1337 | declspecs_sc_ts_sa_ea
1340 /* A (possibly empty) sequence of type qualifiers and attributes, to be
1341 followed by the effect of setattrs if any attributes were present. */
1342 maybe_type_quals_setattrs:
1345 | declspecs_nosc_nots
1346 { tree specs, attrs;
1347 split_specs_attrs ($1, &specs, &attrs);
1348 /* ??? Yuck. See maybe_setattrs. */
1349 if (attrs != NULL_TREE)
1350 prefix_attributes = chainon (prefix_attributes, attrs);
1354 /* A type specifier (but not a type qualifier).
1355 Once we have seen one of these in a declaration,
1356 if a typedef name appears then it is being redeclared.
1358 The _reserved versions start with a reserved word and may appear anywhere
1359 in the declaration specifiers; the _nonreserved versions may only
1360 appear before any other type specifiers, and after that are (if names)
1363 FIXME: should the _nonreserved version be restricted to names being
1364 redeclared only? The other entries there relate only the GNU extensions
1365 and Objective C, and are historically parsed thus, and don't make sense
1366 after other type specifiers, but it might be cleaner to count them as
1369 _attr means: specifiers that either end with attributes,
1370 or are such that any following attributes would
1371 be parsed as part of the specifier.
1373 _nonattr: specifiers. */
1376 typespec_reserved_nonattr
1377 | typespec_nonreserved_nonattr
1381 typespec_reserved_attr
1384 typespec_reserved_nonattr:
1389 typespec_reserved_attr:
1393 typespec_nonreserved_nonattr:
1395 { /* For a typedef name, record the meaning, not the name.
1396 In case of `foo foo, bar;'. */
1397 $$ = lookup_name ($1); }
1399 | CLASSNAME protocolrefs
1400 { $$ = get_static_reference ($1, $2); }
1401 | OBJECTNAME protocolrefs
1402 { $$ = get_object_reference ($2); }
1404 /* Make "<SomeProtocol>" equivalent to "id <SomeProtocol>"
1405 - nisse@lysator.liu.se */
1406 | non_empty_protocolrefs
1407 { $$ = get_object_reference ($1); }
1409 | TYPEOF '(' expr ')'
1410 { $$ = TREE_TYPE ($3); }
1411 | TYPEOF '(' typename ')'
1412 { $$ = groktypename ($3); }
1415 /* typespec_nonreserved_attr does not exist. */
1419 | initdecls ',' maybe_setattrs initdcl
1424 | notype_initdecls ',' maybe_setattrs notype_initdcl
1430 | ASM_KEYWORD '(' string ')'
1431 { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
1437 declarator maybeasm maybe_attribute '='
1438 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1439 $3, prefix_attributes);
1440 start_init ($<ttype>$, $2, global_bindings_p ()); }
1442 /* Note how the declaration of the variable is in effect while its init is parsed! */
1444 finish_decl ($<ttype>5, $6, $2); }
1445 | declarator maybeasm maybe_attribute
1446 { tree d = start_decl ($1, current_declspecs, 0,
1447 $3, prefix_attributes);
1448 finish_decl (d, NULL_TREE, $2);
1453 notype_declarator maybeasm maybe_attribute '='
1454 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1455 $3, prefix_attributes);
1456 start_init ($<ttype>$, $2, global_bindings_p ()); }
1458 /* Note how the declaration of the variable is in effect while its init is parsed! */
1460 finish_decl ($<ttype>5, $6, $2); }
1461 | notype_declarator maybeasm maybe_attribute
1462 { tree d = start_decl ($1, current_declspecs, 0,
1463 $3, prefix_attributes);
1464 finish_decl (d, NULL_TREE, $2); }
1466 /* the * rules are dummies to accept the Apollo extended syntax
1467 so that the header files compile. */
1478 | attributes attribute
1479 { $$ = chainon ($1, $2); }
1483 ATTRIBUTE '(' '(' attribute_list ')' ')'
1490 | attribute_list ',' attrib
1491 { $$ = chainon ($1, $3); }
1498 { $$ = build_tree_list ($1, NULL_TREE); }
1499 | any_word '(' IDENTIFIER ')'
1500 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
1501 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
1502 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
1503 | any_word '(' exprlist ')'
1504 { $$ = build_tree_list ($1, $3); }
1507 /* This still leaves out most reserved keywords,
1508 shouldn't we include them? */
1517 /* Initializers. `init' is the entry point. */
1522 { really_start_incremental_init (NULL_TREE); }
1523 initlist_maybe_comma '}'
1524 { $$ = pop_init_level (0); }
1526 { $$ = error_mark_node; }
1529 /* `initlist_maybe_comma' is the guts of an initializer in braces. */
1530 initlist_maybe_comma:
1533 pedwarn ("ISO C forbids empty initializer braces"); }
1534 | initlist1 maybecomma
1539 | initlist1 ',' initelt
1542 /* `initelt' is a single element of an initializer.
1543 It may use braces. */
1545 designator_list '=' initval
1546 { if (pedantic && ! flag_isoc99)
1547 pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
1548 | designator initval
1550 pedwarn ("obsolete use of designated initializer without `='"); }
1552 { set_init_label ($1);
1554 pedwarn ("obsolete use of designated initializer with `:'"); }
1561 { push_init_level (0); }
1562 initlist_maybe_comma '}'
1563 { process_init_element (pop_init_level (0)); }
1565 { process_init_element ($1); }
1571 | designator_list designator
1576 { set_init_label ($2); }
1577 /* These are for labeled elements. The syntax for an array element
1578 initializer conflicts with the syntax for an Objective-C message,
1579 so don't include these productions in the Objective-C grammar. */
1581 | '[' expr_no_commas ELLIPSIS expr_no_commas ']'
1582 { set_init_index ($2, $4);
1584 pedwarn ("ISO C forbids specifying range of elements to initialize"); }
1585 | '[' expr_no_commas ']'
1586 { set_init_index ($2, NULL_TREE); }
1593 pedwarn ("ISO C forbids nested functions");
1595 push_function_context ();
1596 if (! start_function (current_declspecs, $1,
1597 prefix_attributes, NULL_TREE))
1599 pop_function_context ();
1603 old_style_parm_decls
1604 { store_parm_decls (); }
1605 /* This used to use compstmt_or_error.
1606 That caused a bug with input `f(g) int g {}',
1607 where the use of YYERROR1 above caused an error
1608 which then was handled by compstmt_or_error.
1609 There followed a repeated execution of that same rule,
1610 which called YYERROR1 again, and so on. */
1611 save_filename save_lineno compstmt
1612 { tree decl = current_function_decl;
1613 DECL_SOURCE_FILE (decl) = $5;
1614 DECL_SOURCE_LINE (decl) = $6;
1615 finish_function (1);
1616 pop_function_context ();
1617 add_decl_stmt (decl); }
1620 notype_nested_function:
1623 pedwarn ("ISO C forbids nested functions");
1625 push_function_context ();
1626 if (! start_function (current_declspecs, $1,
1627 prefix_attributes, NULL_TREE))
1629 pop_function_context ();
1633 old_style_parm_decls
1634 { store_parm_decls (); }
1635 /* This used to use compstmt_or_error.
1636 That caused a bug with input `f(g) int g {}',
1637 where the use of YYERROR1 above caused an error
1638 which then was handled by compstmt_or_error.
1639 There followed a repeated execution of that same rule,
1640 which called YYERROR1 again, and so on. */
1641 save_filename save_lineno compstmt
1642 { tree decl = current_function_decl;
1643 DECL_SOURCE_FILE (decl) = $5;
1644 DECL_SOURCE_LINE (decl) = $6;
1645 finish_function (1);
1646 pop_function_context ();
1647 add_decl_stmt (decl); }
1650 /* Any kind of declarator (thus, all declarators allowed
1651 after an explicit typespec). */
1654 after_type_declarator
1658 /* A declarator that is allowed only after an explicit typespec. */
1660 after_type_declarator:
1661 '(' maybe_setattrs after_type_declarator ')'
1663 | after_type_declarator '(' parmlist_or_identifiers %prec '.'
1664 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1665 /* | after_type_declarator '(' error ')' %prec '.'
1666 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1667 poplevel (0, 0, 0); } */
1668 | after_type_declarator array_declarator %prec '.'
1669 { $$ = set_array_declarator_type ($2, $1, 0); }
1670 | '*' maybe_type_quals_setattrs after_type_declarator %prec UNARY
1671 { $$ = make_pointer_declarator ($2, $3); }
1678 /* Kinds of declarator that can appear in a parameter list
1679 in addition to notype_declarator. This is like after_type_declarator
1680 but does not allow a typedef name in parentheses as an identifier
1681 (because it would conflict with a function with that typedef as arg). */
1683 parm_declarator_starttypename
1684 | parm_declarator_nostarttypename
1687 parm_declarator_starttypename:
1688 parm_declarator_starttypename '(' parmlist_or_identifiers %prec '.'
1689 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1690 /* | parm_declarator_starttypename '(' error ')' %prec '.'
1691 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1692 poplevel (0, 0, 0); } */
1693 | parm_declarator_starttypename array_declarator %prec '.'
1694 { $$ = set_array_declarator_type ($2, $1, 0); }
1698 parm_declarator_nostarttypename:
1699 parm_declarator_nostarttypename '(' parmlist_or_identifiers %prec '.'
1700 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1701 /* | parm_declarator_nostarttypename '(' error ')' %prec '.'
1702 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1703 poplevel (0, 0, 0); } */
1704 | parm_declarator_nostarttypename array_declarator %prec '.'
1705 { $$ = set_array_declarator_type ($2, $1, 0); }
1706 | '*' maybe_type_quals_setattrs parm_declarator_starttypename %prec UNARY
1707 { $$ = make_pointer_declarator ($2, $3); }
1708 | '*' maybe_type_quals_setattrs parm_declarator_nostarttypename %prec UNARY
1709 { $$ = make_pointer_declarator ($2, $3); }
1710 | '(' maybe_setattrs parm_declarator_nostarttypename ')'
1714 /* A declarator allowed whether or not there has been
1715 an explicit typespec. These cannot redeclare a typedef-name. */
1718 notype_declarator '(' parmlist_or_identifiers %prec '.'
1719 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1720 /* | notype_declarator '(' error ')' %prec '.'
1721 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1722 poplevel (0, 0, 0); } */
1723 | '(' maybe_setattrs notype_declarator ')'
1725 | '*' maybe_type_quals_setattrs notype_declarator %prec UNARY
1726 { $$ = make_pointer_declarator ($2, $3); }
1727 | notype_declarator array_declarator %prec '.'
1728 { $$ = set_array_declarator_type ($2, $1, 0); }
1753 /* structsp_attr: struct/union/enum specifiers that either
1754 end with attributes, or are such that any following attributes would
1755 be parsed as part of the struct/union/enum specifier.
1757 structsp_nonattr: other struct/union/enum specifiers. */
1760 struct_head identifier '{'
1761 { $$ = start_struct (RECORD_TYPE, $2);
1762 /* Start scope of tag before parsing components. */
1764 component_decl_list '}' maybe_attribute
1765 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1766 | struct_head '{' component_decl_list '}' maybe_attribute
1767 { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
1768 $3, chainon ($1, $5));
1770 | union_head identifier '{'
1771 { $$ = start_struct (UNION_TYPE, $2); }
1772 component_decl_list '}' maybe_attribute
1773 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1774 | union_head '{' component_decl_list '}' maybe_attribute
1775 { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
1776 $3, chainon ($1, $5));
1778 | enum_head identifier '{'
1779 { $$ = start_enum ($2); }
1780 enumlist maybecomma_warn '}' maybe_attribute
1781 { $$ = finish_enum ($<ttype>4, nreverse ($5),
1782 chainon ($1, $8)); }
1784 { $$ = start_enum (NULL_TREE); }
1785 enumlist maybecomma_warn '}' maybe_attribute
1786 { $$ = finish_enum ($<ttype>3, nreverse ($4),
1787 chainon ($1, $7)); }
1791 struct_head identifier
1792 { $$ = xref_tag (RECORD_TYPE, $2); }
1793 | union_head identifier
1794 { $$ = xref_tag (UNION_TYPE, $2); }
1795 | enum_head identifier
1796 { $$ = xref_tag (ENUMERAL_TYPE, $2);
1797 /* In ISO C, enumerated types can be referred to
1798 only if already defined. */
1799 if (pedantic && !COMPLETE_TYPE_P ($$))
1800 pedwarn ("ISO C forbids forward references to `enum' types"); }
1811 { if (pedantic && ! flag_isoc99)
1812 pedwarn ("comma at end of enumerator list"); }
1815 component_decl_list:
1816 component_decl_list2
1818 | component_decl_list2 component_decl
1819 { $$ = chainon ($1, $2);
1820 pedwarn ("no semicolon at end of struct or union"); }
1823 component_decl_list2: /* empty */
1825 | component_decl_list2 component_decl ';'
1826 { $$ = chainon ($1, $2); }
1827 | component_decl_list2 ';'
1829 pedwarn ("extra semicolon in struct or union specified"); }
1831 /* foo(sizeof(struct{ @defs(ClassName)})); */
1832 | DEFS '(' CLASSNAME ')'
1834 tree interface = lookup_interface ($3);
1837 $$ = get_class_ivars (interface);
1840 error ("Cannot find interface declaration for `%s'",
1841 IDENTIFIER_POINTER ($3));
1849 declspecs_nosc_ts setspecs components
1851 current_declspecs = TREE_VALUE (declspec_stack);
1852 prefix_attributes = TREE_PURPOSE (declspec_stack);
1853 declspec_stack = TREE_CHAIN (declspec_stack); }
1854 | declspecs_nosc_ts setspecs save_filename save_lineno
1856 /* Support for unnamed structs or unions as members of
1857 structs or unions (which is [a] useful and [b] supports
1860 pedwarn ("ISO C doesn't support unnamed structs/unions");
1862 $$ = grokfield($3, $4, NULL, current_declspecs, NULL_TREE);
1863 current_declspecs = TREE_VALUE (declspec_stack);
1864 prefix_attributes = TREE_PURPOSE (declspec_stack);
1865 declspec_stack = TREE_CHAIN (declspec_stack);
1867 | declspecs_nosc_nots setspecs components_notype
1869 current_declspecs = TREE_VALUE (declspec_stack);
1870 prefix_attributes = TREE_PURPOSE (declspec_stack);
1871 declspec_stack = TREE_CHAIN (declspec_stack); }
1872 | declspecs_nosc_nots
1874 pedwarn ("ISO C forbids member declarations with no members");
1879 | extension component_decl
1881 RESTORE_WARN_FLAGS ($1); }
1885 component_declarator
1886 | components ',' maybe_setattrs component_declarator
1887 { $$ = chainon ($1, $4); }
1891 component_notype_declarator
1892 | components_notype ',' maybe_setattrs component_notype_declarator
1893 { $$ = chainon ($1, $4); }
1896 component_declarator:
1897 save_filename save_lineno declarator maybe_attribute
1898 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1899 decl_attributes ($$, $4, prefix_attributes); }
1900 | save_filename save_lineno
1901 declarator ':' expr_no_commas maybe_attribute
1902 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1903 decl_attributes ($$, $6, prefix_attributes); }
1904 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1905 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1906 decl_attributes ($$, $5, prefix_attributes); }
1909 component_notype_declarator:
1910 save_filename save_lineno notype_declarator maybe_attribute
1911 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1912 decl_attributes ($$, $4, prefix_attributes); }
1913 | save_filename save_lineno
1914 notype_declarator ':' expr_no_commas maybe_attribute
1915 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1916 decl_attributes ($$, $6, prefix_attributes); }
1917 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1918 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1919 decl_attributes ($$, $5, prefix_attributes); }
1922 /* We chain the enumerators in reverse order.
1923 They are put in forward order where enumlist is used.
1924 (The order used to be significant, but no longer is so.
1925 However, we still maintain the order, just to be clean.) */
1929 | enumlist ',' enumerator
1930 { if ($1 == error_mark_node)
1933 $$ = chainon ($3, $1); }
1935 { $$ = error_mark_node; }
1941 { $$ = build_enumerator ($1, NULL_TREE); }
1942 | identifier '=' expr_no_commas
1943 { $$ = build_enumerator ($1, $3); }
1948 { tree specs, attrs;
1949 pending_xref_error ();
1950 split_specs_attrs ($1, &specs, &attrs);
1951 /* We don't yet support attributes here. */
1952 if (attrs != NULL_TREE)
1953 warning ("attributes on type name ignored");
1954 $<ttype>$ = specs; }
1956 { $$ = build_tree_list ($<ttype>2, $3); }
1959 absdcl: /* an absolute declarator */
1965 absdcl_maybe_attribute: /* absdcl maybe_attribute, but not just attributes */
1967 { $$ = build_tree_list (build_tree_list (current_declspecs,
1969 build_tree_list (prefix_attributes,
1972 { $$ = build_tree_list (build_tree_list (current_declspecs,
1974 build_tree_list (prefix_attributes,
1976 | absdcl1_noea attributes
1977 { $$ = build_tree_list (build_tree_list (current_declspecs,
1979 build_tree_list (prefix_attributes,
1983 absdcl1: /* a nonempty absolute declarator */
1990 | '*' maybe_type_quals_setattrs absdcl1_noea
1991 { $$ = make_pointer_declarator ($2, $3); }
1995 '*' maybe_type_quals_setattrs
1996 { $$ = make_pointer_declarator ($2, NULL_TREE); }
1997 | '*' maybe_type_quals_setattrs absdcl1_ea
1998 { $$ = make_pointer_declarator ($2, $3); }
2002 '(' maybe_setattrs absdcl1 ')'
2004 | direct_absdcl1 '(' parmlist
2005 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
2006 | direct_absdcl1 array_declarator
2007 { $$ = set_array_declarator_type ($2, $1, 1); }
2009 { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
2011 { $$ = set_array_declarator_type ($1, NULL_TREE, 1); }
2014 /* The [...] part of a declarator for an array type. */
2018 { $$ = build_array_declarator ($2, NULL_TREE, 0, 0); }
2019 | '[' declspecs_nosc expr ']'
2020 { $$ = build_array_declarator ($3, $2, 0, 0); }
2022 { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 0); }
2023 | '[' declspecs_nosc ']'
2024 { $$ = build_array_declarator (NULL_TREE, $2, 0, 0); }
2026 { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 1); }
2027 | '[' declspecs_nosc '*' ']'
2028 { $$ = build_array_declarator (NULL_TREE, $2, 0, 1); }
2029 | '[' SCSPEC expr ']'
2030 { if (C_RID_CODE ($2) != RID_STATIC)
2031 error ("storage class specifier in array declarator");
2032 $$ = build_array_declarator ($3, NULL_TREE, 1, 0); }
2033 | '[' SCSPEC declspecs_nosc expr ']'
2034 { if (C_RID_CODE ($2) != RID_STATIC)
2035 error ("storage class specifier in array declarator");
2036 $$ = build_array_declarator ($4, $3, 1, 0); }
2037 | '[' declspecs_nosc SCSPEC expr ']'
2038 { if (C_RID_CODE ($3) != RID_STATIC)
2039 error ("storage class specifier in array declarator");
2040 $$ = build_array_declarator ($4, $2, 1, 0); }
2043 /* A nonempty series of declarations and statements (possibly followed by
2044 some labels) that can form the body of a compound statement.
2045 NOTE: we don't allow labels on declarations; this might seem like a
2046 natural extension, but there would be a conflict between attributes
2047 on the label and prefix attributes on the declaration. */
2050 lineno_stmt_decl_or_labels_ending_stmt
2051 | lineno_stmt_decl_or_labels_ending_decl
2052 | lineno_stmt_decl_or_labels_ending_label
2054 pedwarn ("deprecated use of label at end of compound statement");
2056 | lineno_stmt_decl_or_labels_ending_error
2059 lineno_stmt_decl_or_labels_ending_stmt:
2061 | lineno_stmt_decl_or_labels_ending_stmt lineno_stmt
2062 | lineno_stmt_decl_or_labels_ending_decl lineno_stmt
2063 | lineno_stmt_decl_or_labels_ending_label lineno_stmt
2064 | lineno_stmt_decl_or_labels_ending_error lineno_stmt
2067 lineno_stmt_decl_or_labels_ending_decl:
2069 | lineno_stmt_decl_or_labels_ending_stmt lineno_decl
2070 { if (pedantic && !flag_isoc99)
2071 pedwarn ("ISO C89 forbids mixed declarations and code"); }
2072 | lineno_stmt_decl_or_labels_ending_decl lineno_decl
2073 | lineno_stmt_decl_or_labels_ending_error lineno_decl
2076 lineno_stmt_decl_or_labels_ending_label:
2078 | lineno_stmt_decl_or_labels_ending_stmt lineno_label
2079 | lineno_stmt_decl_or_labels_ending_decl lineno_label
2080 | lineno_stmt_decl_or_labels_ending_label lineno_label
2081 | lineno_stmt_decl_or_labels_ending_error lineno_label
2084 lineno_stmt_decl_or_labels_ending_error:
2086 | lineno_stmt_decl_or_labels errstmt
2089 lineno_stmt_decl_or_labels:
2090 lineno_stmt_decl_or_labels_ending_stmt
2091 | lineno_stmt_decl_or_labels_ending_decl
2092 | lineno_stmt_decl_or_labels_ending_label
2093 | lineno_stmt_decl_or_labels_ending_error
2099 pushlevel: /* empty */
2102 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2104 if (objc_method_context)
2110 poplevel: /* empty */
2111 { $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
2113 /* Start and end blocks created for the new scopes of C99. */
2114 c99_block_start: /* empty */
2117 $$ = c_begin_compound_stmt ();
2120 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2122 if (objc_method_context)
2131 /* Productions using c99_block_start and c99_block_end will need to do what's
2132 in compstmt: RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); $$ = $2; where
2133 $1 is the value of c99_block_start and $2 of c99_block_end. */
2134 c99_block_end: /* empty */
2137 tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
2138 $$ = poplevel (kept_level_p (), 0, 0);
2139 SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
2140 = SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
2147 /* Read zero or more forward-declarations for labels
2148 that nested functions can jump to. */
2153 pedwarn ("ISO C forbids label declarations"); }
2158 | label_decls label_decl
2162 LABEL identifiers_or_typenames ';'
2164 for (link = $2; link; link = TREE_CHAIN (link))
2166 tree label = shadow_label (TREE_VALUE (link));
2167 C_DECLARED_LABEL_FLAG (label) = 1;
2168 add_decl_stmt (label);
2173 /* This is the body of a function definition.
2174 It causes syntax errors to ignore to the next openbrace. */
2181 compstmt_start: '{' { compstmt_count++;
2182 $$ = c_begin_compound_stmt (); }
2184 compstmt_nostart: '}'
2185 { $$ = convert (void_type_node, integer_zero_node); }
2186 | pushlevel maybe_label_decls compstmt_contents_nonempty '}' poplevel
2187 { $$ = poplevel (kept_level_p (), 1, 0);
2188 SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
2189 = SCOPE_STMT_BLOCK (TREE_VALUE ($5))
2193 compstmt_contents_nonempty:
2198 compstmt_primary_start:
2200 { if (current_function_decl == 0)
2202 error ("braced-group within expression allowed only inside a function");
2205 /* We must force a BLOCK for this level
2206 so that, if it is not expanded later,
2207 there is a way to turn off the entire subtree of blocks
2208 that are contained in it. */
2210 push_label_level ();
2212 $$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
2215 compstmt: compstmt_start compstmt_nostart
2216 { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2220 /* Value is number of statements counted as of the closeparen. */
2222 if_prefix c99_block_lineno_labeled_stmt
2223 { c_finish_then (); }
2224 /* Make sure c_expand_end_cond is run once
2225 for each call to c_expand_start_cond.
2226 Otherwise a crash is likely. */
2232 { c_expand_start_cond (truthvalue_conversion ($3),
2234 $<itype>$ = stmt_count;
2235 if_stmt_file = $<filename>-2;
2236 if_stmt_line = $<lineno>-1; }
2239 /* This is a subroutine of stmt.
2240 It is used twice, once for valid DO statements
2241 and once for catching errors in parsing the end test. */
2247 = add_stmt (build_stmt (DO_STMT, NULL_TREE,
2249 /* In the event that a parse error prevents
2250 parsing the complete do-statement, set the
2251 condition now. Otherwise, we can get crashes at
2252 RTL-generation time. */
2253 DO_COND ($<ttype>$) = error_mark_node; }
2254 c99_block_lineno_labeled_stmt WHILE
2256 RECHAIN_STMTS ($$, DO_BODY ($$)); }
2259 /* The forced readahead in here is because we might be at the end of a
2260 line, and the line and file won't be bumped until yylex absorbs the
2261 first token on the next line. */
2263 { if (yychar == YYEMPTY)
2265 $$ = input_filename; }
2269 { if (yychar == YYEMPTY)
2274 lineno_labeled_stmt:
2276 | lineno_label lineno_labeled_stmt
2279 /* Like lineno_labeled_stmt, but a block in C99. */
2280 c99_block_lineno_labeled_stmt:
2281 c99_block_start lineno_labeled_stmt c99_block_end
2283 RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); }
2287 save_filename save_lineno stmt
2290 STMT_LINENO ($3) = $2;
2291 /* ??? We currently have no way of recording
2292 the filename for a statement. This probably
2293 matters little in practice at the moment,
2294 but I suspect that problems will ocurr when
2295 doing inlining at the tree level. */
2301 save_filename save_lineno label
2304 STMT_LINENO ($3) = $2;
2309 select_or_iter_stmt:
2311 { c_expand_start_else ();
2312 $<itype>1 = stmt_count; }
2313 c99_block_lineno_labeled_stmt
2315 c_expand_end_cond ();
2316 if (extra_warnings && stmt_count == $<itype>1)
2317 warning ("empty body in an else-statement"); }
2318 | simple_if %prec IF
2319 { c_expand_end_cond ();
2320 /* This warning is here instead of in simple_if, because we
2321 do not want a warning if an empty if is followed by an
2322 else statement. Increment stmt_count so we don't
2323 give a second error if this is a nested `if'. */
2324 if (extra_warnings && stmt_count++ == $<itype>1)
2325 warning_with_file_and_line (if_stmt_file, if_stmt_line,
2326 "empty body in an if-statement"); }
2327 /* Make sure c_expand_end_cond is run once
2328 for each call to c_expand_start_cond.
2329 Otherwise a crash is likely. */
2330 | simple_if ELSE error
2331 { c_expand_end_cond (); }
2335 { $4 = truthvalue_conversion ($4);
2337 = add_stmt (build_stmt (WHILE_STMT, $4, NULL_TREE)); }
2338 c99_block_lineno_labeled_stmt
2339 { RECHAIN_STMTS ($<ttype>6, WHILE_BODY ($<ttype>6)); }
2342 { DO_COND ($1) = truthvalue_conversion ($3); }
2343 | do_stmt_start error
2346 { $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
2347 NULL_TREE, NULL_TREE);
2348 add_stmt ($<ttype>$); }
2351 RECHAIN_STMTS ($<ttype>2, FOR_INIT_STMT ($<ttype>2)); }
2354 FOR_COND ($<ttype>2) = truthvalue_conversion ($6); }
2356 { FOR_EXPR ($<ttype>2) = $9; }
2357 c99_block_lineno_labeled_stmt
2358 { RECHAIN_STMTS ($<ttype>2, FOR_BODY ($<ttype>2)); }
2359 | SWITCH '(' expr ')'
2361 $<ttype>$ = c_start_case ($3); }
2362 c99_block_lineno_labeled_stmt
2363 { c_finish_case (); }
2368 { add_stmt (build_stmt (EXPR_STMT, $1)); }
2370 { check_for_loop_decls (); }
2373 /* Parse a single real statement, not including any labels. */
2376 { stmt_count++; $$ = $1; }
2379 $$ = c_expand_expr_stmt ($1); }
2380 | c99_block_start select_or_iter_stmt c99_block_end
2382 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2386 $$ = add_stmt (build_break_stmt ()); }
2389 $$ = add_stmt (build_continue_stmt ()); }
2392 $$ = c_expand_return (NULL_TREE); }
2395 $$ = c_expand_return ($2); }
2396 | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
2398 $$ = simple_asm_stmt ($4); }
2399 /* This is the case with just output operands. */
2400 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
2402 $$ = build_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
2403 /* This is the case with input operands as well. */
2404 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2405 asm_operands ')' ';'
2407 $$ = build_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
2408 /* This is the case with clobbered registers as well. */
2409 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2410 asm_operands ':' asm_clobbers ')' ';'
2412 $$ = build_asm_stmt ($2, $4, $6, $8, $10); }
2413 | GOTO identifier ';'
2416 decl = lookup_label ($2);
2419 TREE_USED (decl) = 1;
2420 $$ = add_stmt (build_stmt (GOTO_STMT, decl));
2427 pedwarn ("ISO C forbids `goto *expr;'");
2429 $3 = convert (ptr_type_node, $3);
2430 $$ = add_stmt (build_stmt (GOTO_STMT, $3)); }
2435 /* Any kind of label, including jump labels and case labels.
2436 ANSI C accepts labels only before statements, but we allow them
2437 also at the end of a compound statement. */
2439 label: CASE expr_no_commas ':'
2441 $$ = do_case ($2, NULL_TREE); }
2442 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
2444 $$ = do_case ($2, $4); }
2447 $$ = do_case (NULL_TREE, NULL_TREE); }
2448 | identifier save_filename save_lineno ':' maybe_attribute
2449 { tree label = define_label ($2, $3, $1);
2453 decl_attributes (label, $5, NULL_TREE);
2454 $$ = add_stmt (build_stmt (LABEL_STMT, label));
2461 /* Either a type-qualifier or nothing. First thing in an `asm' statement. */
2465 { emit_line_note (input_filename, lineno);
2468 { emit_line_note (input_filename, lineno); }
2477 /* These are the operands other than the first string and colon
2478 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
2479 asm_operands: /* empty */
2481 | nonnull_asm_operands
2484 nonnull_asm_operands:
2486 | nonnull_asm_operands ',' asm_operand
2487 { $$ = chainon ($1, $3); }
2492 { $$ = build_tree_list ($1, $3); }
2497 { $$ = tree_cons (NULL_TREE, combine_strings ($1), NULL_TREE); }
2498 | asm_clobbers ',' string
2499 { $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
2502 /* This is what appears inside the parens in a function declarator.
2503 Its value is a list of ..._TYPE nodes. Attributes must appear here
2504 to avoid a conflict with their appearance after an open parenthesis
2505 in an abstract declarator, as in
2506 "void bar (int (__attribute__((__mode__(SI))) int foo));". */
2510 clear_parm_order ();
2511 declare_parm_level (0); }
2514 parmlist_tags_warning ();
2515 poplevel (0, 0, 0); }
2523 pedwarn ("ISO C forbids forward parameter declarations");
2524 /* Mark the forward decls as such. */
2525 for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
2526 TREE_ASM_WRITTEN (parm) = 1;
2527 clear_parm_order (); }
2529 { /* Dummy action so attributes are in known place
2530 on parser stack. */ }
2534 { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
2537 /* This is what appears inside the parens in a function declarator.
2538 Is value is represented in the format that grokdeclarator expects. */
2539 parmlist_2: /* empty */
2540 { $$ = get_parm_info (0); }
2542 { $$ = get_parm_info (0);
2543 /* Gcc used to allow this as an extension. However, it does
2544 not work for all targets, and thus has been disabled.
2545 Also, since func (...) and func () are indistinguishable,
2546 it caused problems with the code in expand_builtin which
2547 tries to verify that BUILT_IN_NEXT_ARG is being used
2549 error ("ISO C requires a named argument before `...'");
2552 { $$ = get_parm_info (1); }
2553 | parms ',' ELLIPSIS
2554 { $$ = get_parm_info (0); }
2559 { push_parm_decl ($1); }
2561 { push_parm_decl ($3); }
2564 /* A single parameter declaration or parameter type name,
2565 as found in a parmlist. */
2567 declspecs_ts setspecs parm_declarator maybe_attribute
2568 { $$ = build_tree_list (build_tree_list (current_declspecs,
2570 build_tree_list (prefix_attributes,
2572 current_declspecs = TREE_VALUE (declspec_stack);
2573 prefix_attributes = TREE_PURPOSE (declspec_stack);
2574 declspec_stack = TREE_CHAIN (declspec_stack); }
2575 | declspecs_ts setspecs notype_declarator maybe_attribute
2576 { $$ = build_tree_list (build_tree_list (current_declspecs,
2578 build_tree_list (prefix_attributes,
2580 current_declspecs = TREE_VALUE (declspec_stack);
2581 prefix_attributes = TREE_PURPOSE (declspec_stack);
2582 declspec_stack = TREE_CHAIN (declspec_stack); }
2583 | declspecs_ts setspecs absdcl_maybe_attribute
2585 current_declspecs = TREE_VALUE (declspec_stack);
2586 prefix_attributes = TREE_PURPOSE (declspec_stack);
2587 declspec_stack = TREE_CHAIN (declspec_stack); }
2588 | declspecs_nots setspecs notype_declarator maybe_attribute
2589 { $$ = build_tree_list (build_tree_list (current_declspecs,
2591 build_tree_list (prefix_attributes,
2593 current_declspecs = TREE_VALUE (declspec_stack);
2594 prefix_attributes = TREE_PURPOSE (declspec_stack);
2595 declspec_stack = TREE_CHAIN (declspec_stack); }
2597 | declspecs_nots setspecs absdcl_maybe_attribute
2599 current_declspecs = TREE_VALUE (declspec_stack);
2600 prefix_attributes = TREE_PURPOSE (declspec_stack);
2601 declspec_stack = TREE_CHAIN (declspec_stack); }
2604 /* The first parm, which must suck attributes from off the top of the parser
2607 declspecs_ts_nosa setspecs_fp parm_declarator maybe_attribute
2608 { $$ = build_tree_list (build_tree_list (current_declspecs,
2610 build_tree_list (prefix_attributes,
2612 current_declspecs = TREE_VALUE (declspec_stack);
2613 prefix_attributes = TREE_PURPOSE (declspec_stack);
2614 declspec_stack = TREE_CHAIN (declspec_stack); }
2615 | declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
2616 { $$ = build_tree_list (build_tree_list (current_declspecs,
2618 build_tree_list (prefix_attributes,
2620 current_declspecs = TREE_VALUE (declspec_stack);
2621 prefix_attributes = TREE_PURPOSE (declspec_stack);
2622 declspec_stack = TREE_CHAIN (declspec_stack); }
2623 | declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
2625 current_declspecs = TREE_VALUE (declspec_stack);
2626 prefix_attributes = TREE_PURPOSE (declspec_stack);
2627 declspec_stack = TREE_CHAIN (declspec_stack); }
2628 | declspecs_nots_nosa setspecs_fp notype_declarator maybe_attribute
2629 { $$ = build_tree_list (build_tree_list (current_declspecs,
2631 build_tree_list (prefix_attributes,
2633 current_declspecs = TREE_VALUE (declspec_stack);
2634 prefix_attributes = TREE_PURPOSE (declspec_stack);
2635 declspec_stack = TREE_CHAIN (declspec_stack); }
2637 | declspecs_nots_nosa setspecs_fp absdcl_maybe_attribute
2639 current_declspecs = TREE_VALUE (declspec_stack);
2640 prefix_attributes = TREE_PURPOSE (declspec_stack);
2641 declspec_stack = TREE_CHAIN (declspec_stack); }
2646 { prefix_attributes = chainon (prefix_attributes, $<ttype>-2); }
2649 /* This is used in a function definition
2650 where either a parmlist or an identifier list is ok.
2651 Its value is a list of ..._TYPE nodes or a list of identifiers. */
2652 parmlist_or_identifiers:
2654 clear_parm_order ();
2655 declare_parm_level (1); }
2656 parmlist_or_identifiers_1
2658 parmlist_tags_warning ();
2659 poplevel (0, 0, 0); }
2662 parmlist_or_identifiers_1:
2666 for (t = $1; t; t = TREE_CHAIN (t))
2667 if (TREE_VALUE (t) == NULL_TREE)
2668 error ("`...' in old-style identifier list");
2669 $$ = tree_cons (NULL_TREE, NULL_TREE, $1); }
2672 /* A nonempty list of identifiers. */
2675 { $$ = build_tree_list (NULL_TREE, $1); }
2676 | identifiers ',' IDENTIFIER
2677 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2680 /* A nonempty list of identifiers, including typenames. */
2681 identifiers_or_typenames:
2683 { $$ = build_tree_list (NULL_TREE, $1); }
2684 | identifiers_or_typenames ',' identifier
2685 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2690 { $$ = SAVE_WARN_FLAGS();
2692 warn_pointer_arith = 0; }
2696 /* Objective-C productions. */
2706 if (objc_implementation_context)
2708 finish_class (objc_implementation_context);
2709 objc_ivar_chain = NULL_TREE;
2710 objc_implementation_context = NULL_TREE;
2713 warning ("`@end' must appear in an implementation context");
2717 /* A nonempty list of identifiers. */
2720 { $$ = build_tree_list (NULL_TREE, $1); }
2721 | identifier_list ',' identifier
2722 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2726 CLASS identifier_list ';'
2728 objc_declare_class ($2);
2732 ALIAS identifier identifier ';'
2734 objc_declare_alias ($2, $3);
2738 INTERFACE identifier protocolrefs '{'
2740 objc_interface_context = objc_ivar_context
2741 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2742 objc_public_flag = 0;
2746 continue_class (objc_interface_context);
2751 finish_class (objc_interface_context);
2752 objc_interface_context = NULL_TREE;
2755 | INTERFACE identifier protocolrefs
2757 objc_interface_context
2758 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2759 continue_class (objc_interface_context);
2764 finish_class (objc_interface_context);
2765 objc_interface_context = NULL_TREE;
2768 | INTERFACE identifier ':' identifier protocolrefs '{'
2770 objc_interface_context = objc_ivar_context
2771 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2772 objc_public_flag = 0;
2776 continue_class (objc_interface_context);
2781 finish_class (objc_interface_context);
2782 objc_interface_context = NULL_TREE;
2785 | INTERFACE identifier ':' identifier protocolrefs
2787 objc_interface_context
2788 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2789 continue_class (objc_interface_context);
2794 finish_class (objc_interface_context);
2795 objc_interface_context = NULL_TREE;
2798 | IMPLEMENTATION identifier '{'
2800 objc_implementation_context = objc_ivar_context
2801 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2802 objc_public_flag = 0;
2807 = continue_class (objc_implementation_context);
2810 | IMPLEMENTATION identifier
2812 objc_implementation_context
2813 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2815 = continue_class (objc_implementation_context);
2818 | IMPLEMENTATION identifier ':' identifier '{'
2820 objc_implementation_context = objc_ivar_context
2821 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2822 objc_public_flag = 0;
2827 = continue_class (objc_implementation_context);
2830 | IMPLEMENTATION identifier ':' identifier
2832 objc_implementation_context
2833 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2835 = continue_class (objc_implementation_context);
2838 | INTERFACE identifier '(' identifier ')' protocolrefs
2840 objc_interface_context
2841 = start_class (CATEGORY_INTERFACE_TYPE, $2, $4, $6);
2842 continue_class (objc_interface_context);
2847 finish_class (objc_interface_context);
2848 objc_interface_context = NULL_TREE;
2851 | IMPLEMENTATION identifier '(' identifier ')'
2853 objc_implementation_context
2854 = start_class (CATEGORY_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2856 = continue_class (objc_implementation_context);
2861 PROTOCOL identifier protocolrefs
2863 objc_pq_context = 1;
2864 objc_interface_context
2865 = start_protocol(PROTOCOL_INTERFACE_TYPE, $2, $3);
2869 objc_pq_context = 0;
2870 finish_protocol(objc_interface_context);
2871 objc_interface_context = NULL_TREE;
2880 | non_empty_protocolrefs
2883 non_empty_protocolrefs:
2884 ARITHCOMPARE identifier_list ARITHCOMPARE
2886 if ($1 == LT_EXPR && $3 == GT_EXPR)
2894 ivar_decl_list visibility_spec ivar_decls
2899 PRIVATE { objc_public_flag = 2; }
2900 | PROTECTED { objc_public_flag = 0; }
2901 | PUBLIC { objc_public_flag = 1; }
2909 | ivar_decls ivar_decl ';'
2913 pedwarn ("extra semicolon in struct or union specified");
2918 /* There is a shift-reduce conflict here, because `components' may
2919 start with a `typename'. It happens that shifting (the default resolution)
2920 does the right thing, because it treats the `typename' as part of
2921 a `typed_typespecs'.
2923 It is possible that this same technique would allow the distinction
2924 between `notype_initdecls' and `initdecls' to be eliminated.
2925 But I am being cautious and not trying it. */
2928 declspecs_nosc_ts setspecs ivars
2930 current_declspecs = TREE_VALUE (declspec_stack);
2931 prefix_attributes = TREE_PURPOSE (declspec_stack);
2932 declspec_stack = TREE_CHAIN (declspec_stack); }
2933 | declspecs_nosc_nots setspecs ivars
2935 current_declspecs = TREE_VALUE (declspec_stack);
2936 prefix_attributes = TREE_PURPOSE (declspec_stack);
2937 declspec_stack = TREE_CHAIN (declspec_stack); }
2946 | ivars ',' maybe_setattrs ivar_declarator
2952 $$ = add_instance_variable (objc_ivar_context,
2954 $1, current_declspecs,
2957 | declarator ':' expr_no_commas
2959 $$ = add_instance_variable (objc_ivar_context,
2961 $1, current_declspecs, $3);
2963 | ':' expr_no_commas
2965 $$ = add_instance_variable (objc_ivar_context,
2968 current_declspecs, $2);
2974 { objc_inherit_code = CLASS_METHOD_DECL; }
2976 { objc_inherit_code = INSTANCE_METHOD_DECL; }
2982 objc_pq_context = 1;
2983 if (!objc_implementation_context)
2984 fatal_error ("method definition not in class context");
2988 objc_pq_context = 0;
2989 if (objc_inherit_code == CLASS_METHOD_DECL)
2990 add_class_method (objc_implementation_context, $3);
2992 add_instance_method (objc_implementation_context, $3);
2993 start_method_def ($3);
2994 objc_method_context = $3;
2998 continue_method_def ();
3002 finish_method_def ();
3003 objc_method_context = NULL_TREE;
3007 /* the reason for the strange actions in this rule
3008 is so that notype_initdecls when reached via datadef
3009 can find a valid list of type and sc specs in $0. */
3013 | {$<ttype>$ = NULL_TREE; } methodprotolist2
3016 methodprotolist2: /* eliminates a shift/reduce conflict */
3019 | methodprotolist2 methodproto
3020 | methodprotolist2 {$<ttype>$ = NULL_TREE; } datadef
3031 /* Remember protocol qualifiers in prototypes. */
3032 objc_pq_context = 1;
3036 /* Forget protocol qualifiers here. */
3037 objc_pq_context = 0;
3038 if (objc_inherit_code == CLASS_METHOD_DECL)
3039 add_class_method (objc_interface_context, $3);
3041 add_instance_method (objc_interface_context, $3);
3047 '(' typename ')' unaryselector
3049 $$ = build_method_decl (objc_inherit_code, $2, $4, NULL_TREE);
3054 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, NULL_TREE);
3057 | '(' typename ')' keywordselector optparmlist
3059 $$ = build_method_decl (objc_inherit_code, $2, $4, $5);
3062 | keywordselector optparmlist
3064 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, $2);
3068 /* "optarglist" assumes that start_method_def has already been called...
3069 if it is not, the "xdecls" will not be placed in the proper scope */
3076 /* to get around the following situation: "int foo (int a) int b; {}" that
3077 is synthesized when parsing "- a:a b:b; id c; id d; { ... }" */
3092 declspecs_ts setspecs myparms ';'
3093 { current_declspecs = TREE_VALUE (declspec_stack);
3094 prefix_attributes = TREE_PURPOSE (declspec_stack);
3095 declspec_stack = TREE_CHAIN (declspec_stack); }
3097 { shadow_tag ($1); }
3098 | declspecs_nots ';'
3099 { pedwarn ("empty declaration"); }
3104 { push_parm_decl ($1); }
3105 | myparms ',' myparm
3106 { push_parm_decl ($3); }
3109 /* A single parameter declaration or parameter type name,
3110 as found in a parmlist. DOES NOT ALLOW AN INITIALIZER OR ASMSPEC */
3113 parm_declarator maybe_attribute
3114 { $$ = build_tree_list (build_tree_list (current_declspecs,
3116 build_tree_list (prefix_attributes,
3118 | notype_declarator maybe_attribute
3119 { $$ = build_tree_list (build_tree_list (current_declspecs,
3121 build_tree_list (prefix_attributes,
3123 | absdcl_maybe_attribute
3134 /* oh what a kludge! */
3135 $$ = objc_ellipsis_node;
3143 /* returns a tree list node generated by get_parm_info */
3156 | keywordselector keyworddecl
3158 $$ = chainon ($1, $2);
3170 ENUM | STRUCT | UNION | IF | ELSE | WHILE | DO | FOR
3171 | SWITCH | CASE | DEFAULT | BREAK | CONTINUE | RETURN
3172 | GOTO | ASM_KEYWORD | SIZEOF | TYPEOF | ALIGNOF
3173 | TYPESPEC | TYPE_QUAL
3177 selector ':' '(' typename ')' identifier
3179 $$ = build_keyword_decl ($1, $4, $6);
3182 | selector ':' identifier
3184 $$ = build_keyword_decl ($1, NULL_TREE, $3);
3187 | ':' '(' typename ')' identifier
3189 $$ = build_keyword_decl (NULL_TREE, $3, $5);
3194 $$ = build_keyword_decl (NULL_TREE, NULL_TREE, $2);
3205 | keywordarglist keywordarg
3207 $$ = chainon ($1, $2);
3215 if (TREE_CHAIN ($1) == NULL_TREE)
3216 /* just return the expr., remove a level of indirection */
3217 $$ = TREE_VALUE ($1);
3219 /* we have a comma expr., we will collapse later */
3225 selector ':' keywordexpr
3227 $$ = build_tree_list ($1, $3);
3231 $$ = build_tree_list (NULL_TREE, $2);
3239 $$ = get_class_reference ($1);
3245 { objc_receiver_context = 1; }
3247 { objc_receiver_context = 0; }
3250 $$ = build_tree_list ($3, $5);
3261 | keywordnamelist keywordname
3263 $$ = chainon ($1, $2);
3270 $$ = build_tree_list ($1, NULL_TREE);
3274 $$ = build_tree_list (NULL_TREE, NULL_TREE);
3279 SELECTOR '(' selectorarg ')'
3286 PROTOCOL '(' identifier ')'
3292 /* extension to support C-structures in the archiver */
3295 ENCODE '(' typename ')'
3297 $$ = groktypename ($3);
3304 /* yylex() is a thin wrapper around c_lex(), all it does is translate
3305 cpplib.h's token codes into yacc's token codes. */
3307 static enum cpp_ttype last_token;
3309 /* The reserved keyword table. */
3313 ENUM_BITFIELD(rid) rid : 16;
3314 unsigned int disable : 16;
3317 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
3319 #define D_TRAD 0x01 /* not in traditional C */
3320 #define D_C89 0x02 /* not in C89 */
3321 #define D_EXT 0x04 /* GCC extension */
3322 #define D_EXT89 0x08 /* GCC extension incorporated in C99 */
3323 #define D_OBJC 0x10 /* Objective C only */
3325 static const struct resword reswords[] =
3327 { "_Bool", RID_BOOL, 0 },
3328 { "_Complex", RID_COMPLEX, 0 },
3329 { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
3330 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
3331 { "__alignof", RID_ALIGNOF, 0 },
3332 { "__alignof__", RID_ALIGNOF, 0 },
3333 { "__asm", RID_ASM, 0 },
3334 { "__asm__", RID_ASM, 0 },
3335 { "__attribute", RID_ATTRIBUTE, 0 },
3336 { "__attribute__", RID_ATTRIBUTE, 0 },
3337 { "__bounded", RID_BOUNDED, 0 },
3338 { "__bounded__", RID_BOUNDED, 0 },
3339 { "__builtin_va_arg", RID_VA_ARG, 0 },
3340 { "__complex", RID_COMPLEX, 0 },
3341 { "__complex__", RID_COMPLEX, 0 },
3342 { "__const", RID_CONST, 0 },
3343 { "__const__", RID_CONST, 0 },
3344 { "__extension__", RID_EXTENSION, 0 },
3345 { "__func__", RID_C99_FUNCTION_NAME, 0 },
3346 { "__imag", RID_IMAGPART, 0 },
3347 { "__imag__", RID_IMAGPART, 0 },
3348 { "__inline", RID_INLINE, 0 },
3349 { "__inline__", RID_INLINE, 0 },
3350 { "__label__", RID_LABEL, 0 },
3351 { "__ptrbase", RID_PTRBASE, 0 },
3352 { "__ptrbase__", RID_PTRBASE, 0 },
3353 { "__ptrextent", RID_PTREXTENT, 0 },
3354 { "__ptrextent__", RID_PTREXTENT, 0 },
3355 { "__ptrvalue", RID_PTRVALUE, 0 },
3356 { "__ptrvalue__", RID_PTRVALUE, 0 },
3357 { "__real", RID_REALPART, 0 },
3358 { "__real__", RID_REALPART, 0 },
3359 { "__restrict", RID_RESTRICT, 0 },
3360 { "__restrict__", RID_RESTRICT, 0 },
3361 { "__signed", RID_SIGNED, 0 },
3362 { "__signed__", RID_SIGNED, 0 },
3363 { "__typeof", RID_TYPEOF, 0 },
3364 { "__typeof__", RID_TYPEOF, 0 },
3365 { "__unbounded", RID_UNBOUNDED, 0 },
3366 { "__unbounded__", RID_UNBOUNDED, 0 },
3367 { "__volatile", RID_VOLATILE, 0 },
3368 { "__volatile__", RID_VOLATILE, 0 },
3369 { "asm", RID_ASM, D_EXT },
3370 { "auto", RID_AUTO, 0 },
3371 { "break", RID_BREAK, 0 },
3372 { "case", RID_CASE, 0 },
3373 { "char", RID_CHAR, 0 },
3374 { "const", RID_CONST, D_TRAD },
3375 { "continue", RID_CONTINUE, 0 },
3376 { "default", RID_DEFAULT, 0 },
3377 { "do", RID_DO, 0 },
3378 { "double", RID_DOUBLE, 0 },
3379 { "else", RID_ELSE, 0 },
3380 { "enum", RID_ENUM, 0 },
3381 { "extern", RID_EXTERN, 0 },
3382 { "float", RID_FLOAT, 0 },
3383 { "for", RID_FOR, 0 },
3384 { "goto", RID_GOTO, 0 },
3385 { "if", RID_IF, 0 },
3386 { "inline", RID_INLINE, D_TRAD|D_EXT89 },
3387 { "int", RID_INT, 0 },
3388 { "long", RID_LONG, 0 },
3389 { "register", RID_REGISTER, 0 },
3390 { "restrict", RID_RESTRICT, D_TRAD|D_C89 },
3391 { "return", RID_RETURN, 0 },
3392 { "short", RID_SHORT, 0 },
3393 { "signed", RID_SIGNED, D_TRAD },
3394 { "sizeof", RID_SIZEOF, 0 },
3395 { "static", RID_STATIC, 0 },
3396 { "struct", RID_STRUCT, 0 },
3397 { "switch", RID_SWITCH, 0 },
3398 { "typedef", RID_TYPEDEF, 0 },
3399 { "typeof", RID_TYPEOF, D_TRAD|D_EXT },
3400 { "union", RID_UNION, 0 },
3401 { "unsigned", RID_UNSIGNED, 0 },
3402 { "void", RID_VOID, 0 },
3403 { "volatile", RID_VOLATILE, D_TRAD },
3404 { "while", RID_WHILE, 0 },
3406 { "id", RID_ID, D_OBJC },
3408 /* These objc keywords are recognized only immediately after
3410 { "class", RID_AT_CLASS, D_OBJC },
3411 { "compatibility_alias", RID_AT_ALIAS, D_OBJC },
3412 { "defs", RID_AT_DEFS, D_OBJC },
3413 { "encode", RID_AT_ENCODE, D_OBJC },
3414 { "end", RID_AT_END, D_OBJC },
3415 { "implementation", RID_AT_IMPLEMENTATION, D_OBJC },
3416 { "interface", RID_AT_INTERFACE, D_OBJC },
3417 { "private", RID_AT_PRIVATE, D_OBJC },
3418 { "protected", RID_AT_PROTECTED, D_OBJC },
3419 { "protocol", RID_AT_PROTOCOL, D_OBJC },
3420 { "public", RID_AT_PUBLIC, D_OBJC },
3421 { "selector", RID_AT_SELECTOR, D_OBJC },
3423 /* These are recognized only in protocol-qualifier context
3425 { "bycopy", RID_BYCOPY, D_OBJC },
3426 { "byref", RID_BYREF, D_OBJC },
3427 { "in", RID_IN, D_OBJC },
3428 { "inout", RID_INOUT, D_OBJC },
3429 { "oneway", RID_ONEWAY, D_OBJC },
3430 { "out", RID_OUT, D_OBJC },
3433 #define N_reswords (sizeof reswords / sizeof (struct resword))
3435 /* Table mapping from RID_* constants to yacc token numbers.
3436 Unfortunately we have to have entries for all the keywords in all
3438 static const short rid_to_yy[RID_MAX] =
3440 /* RID_STATIC */ SCSPEC,
3441 /* RID_UNSIGNED */ TYPESPEC,
3442 /* RID_LONG */ TYPESPEC,
3443 /* RID_CONST */ TYPE_QUAL,
3444 /* RID_EXTERN */ SCSPEC,
3445 /* RID_REGISTER */ SCSPEC,
3446 /* RID_TYPEDEF */ SCSPEC,
3447 /* RID_SHORT */ TYPESPEC,
3448 /* RID_INLINE */ SCSPEC,
3449 /* RID_VOLATILE */ TYPE_QUAL,
3450 /* RID_SIGNED */ TYPESPEC,
3451 /* RID_AUTO */ SCSPEC,
3452 /* RID_RESTRICT */ TYPE_QUAL,
3455 /* RID_BOUNDED */ TYPE_QUAL,
3456 /* RID_UNBOUNDED */ TYPE_QUAL,
3457 /* RID_COMPLEX */ TYPESPEC,
3461 /* RID_VIRTUAL */ 0,
3462 /* RID_EXPLICIT */ 0,
3464 /* RID_MUTABLE */ 0,
3467 /* RID_IN */ TYPE_QUAL,
3468 /* RID_OUT */ TYPE_QUAL,
3469 /* RID_INOUT */ TYPE_QUAL,
3470 /* RID_BYCOPY */ TYPE_QUAL,
3471 /* RID_BYREF */ TYPE_QUAL,
3472 /* RID_ONEWAY */ TYPE_QUAL,
3475 /* RID_INT */ TYPESPEC,
3476 /* RID_CHAR */ TYPESPEC,
3477 /* RID_FLOAT */ TYPESPEC,
3478 /* RID_DOUBLE */ TYPESPEC,
3479 /* RID_VOID */ TYPESPEC,
3480 /* RID_ENUM */ ENUM,
3481 /* RID_STRUCT */ STRUCT,
3482 /* RID_UNION */ UNION,
3484 /* RID_ELSE */ ELSE,
3485 /* RID_WHILE */ WHILE,
3488 /* RID_SWITCH */ SWITCH,
3489 /* RID_CASE */ CASE,
3490 /* RID_DEFAULT */ DEFAULT,
3491 /* RID_BREAK */ BREAK,
3492 /* RID_CONTINUE */ CONTINUE,
3493 /* RID_RETURN */ RETURN,
3494 /* RID_GOTO */ GOTO,
3495 /* RID_SIZEOF */ SIZEOF,
3498 /* RID_ASM */ ASM_KEYWORD,
3499 /* RID_TYPEOF */ TYPEOF,
3500 /* RID_ALIGNOF */ ALIGNOF,
3501 /* RID_ATTRIBUTE */ ATTRIBUTE,
3502 /* RID_VA_ARG */ VA_ARG,
3503 /* RID_EXTENSION */ EXTENSION,
3504 /* RID_IMAGPART */ IMAGPART,
3505 /* RID_REALPART */ REALPART,
3506 /* RID_LABEL */ LABEL,
3507 /* RID_PTRBASE */ PTR_BASE,
3508 /* RID_PTREXTENT */ PTR_EXTENT,
3509 /* RID_PTRVALUE */ PTR_VALUE,
3511 /* RID_FUNCTION_NAME */ STRING_FUNC_NAME,
3512 /* RID_PRETTY_FUNCTION_NAME */ STRING_FUNC_NAME,
3513 /* RID_C99_FUNCTION_NAME */ VAR_FUNC_NAME,
3516 /* RID_BOOL */ TYPESPEC,
3520 /* RID_PRIVATE */ 0,
3521 /* RID_PROTECTED */ 0,
3522 /* RID_TEMPLATE */ 0,
3527 /* RID_NAMESPACE */ 0,
3529 /* RID_OPERATOR */ 0,
3534 /* RID_TYPENAME */ 0,
3539 /* RID_CONSTCAST */ 0,
3540 /* RID_DYNCAST */ 0,
3541 /* RID_REINTCAST */ 0,
3542 /* RID_STATCAST */ 0,
3544 /* alternate spellings */
3558 /* RID_ID */ OBJECTNAME,
3559 /* RID_AT_ENCODE */ ENCODE,
3560 /* RID_AT_END */ END,
3561 /* RID_AT_CLASS */ CLASS,
3562 /* RID_AT_ALIAS */ ALIAS,
3563 /* RID_AT_DEFS */ DEFS,
3564 /* RID_AT_PRIVATE */ PRIVATE,
3565 /* RID_AT_PROTECTED */ PROTECTED,
3566 /* RID_AT_PUBLIC */ PUBLIC,
3567 /* RID_AT_PROTOCOL */ PROTOCOL,
3568 /* RID_AT_SELECTOR */ SELECTOR,
3569 /* RID_AT_INTERFACE */ INTERFACE,
3570 /* RID_AT_IMPLEMENTATION */ IMPLEMENTATION
3578 int mask = (flag_isoc99 ? 0 : D_C89)
3579 | (flag_traditional ? D_TRAD : 0)
3580 | (flag_no_asm ? (flag_isoc99 ? D_EXT : D_EXT|D_EXT89) : 0);
3582 if (c_language != clk_objective_c)
3585 /* It is not necessary to register ridpointers as a GC root, because
3586 all the trees it points to are permanently interned in the
3587 get_identifier hash anyway. */
3588 ridpointers = (tree *) xcalloc ((int) RID_MAX, sizeof (tree));
3589 for (i = 0; i < N_reswords; i++)
3591 /* If a keyword is disabled, do not enter it into the table
3592 and so create a canonical spelling that isn't a keyword. */
3593 if (reswords[i].disable & mask)
3596 id = get_identifier (reswords[i].word);
3597 C_RID_CODE (id) = reswords[i].rid;
3598 C_IS_RESERVED_WORD (id) = 1;
3599 ridpointers [(int) reswords[i].rid] = id;
3604 init_parse (filename)
3605 const char *filename;
3607 add_c_tree_codes ();
3609 /* Make identifier nodes long enough for the language-specific slots. */
3610 set_identifier_size (sizeof (struct lang_identifier));
3615 return init_c_lex (filename);
3621 cpp_finish (parse_in);
3622 /* Call to cpp_destroy () omitted for performance reasons. */
3623 errorcount += cpp_errors (parse_in);
3626 #define NAME(type) cpp_type2name (type)
3632 const char *string = _(msgid);
3634 if (last_token == CPP_EOF)
3635 error ("%s at end of input", string);
3636 else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
3638 unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
3639 const char *ell = (last_token == CPP_CHAR) ? "" : "L";
3640 if (val <= UCHAR_MAX && ISGRAPH (val))
3641 error ("%s before %s'%c'", string, ell, val);
3643 error ("%s before %s'\\x%x'", string, ell, val);
3645 else if (last_token == CPP_STRING
3646 || last_token == CPP_WSTRING)
3647 error ("%s before string constant", string);
3648 else if (last_token == CPP_NUMBER
3649 || last_token == CPP_INT
3650 || last_token == CPP_FLOAT)
3651 error ("%s before numeric constant", string);
3652 else if (last_token == CPP_NAME)
3653 error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
3655 error ("%s before '%s' token", string, NAME(last_token));
3663 if (C_IS_RESERVED_WORD (yylval.ttype))
3665 enum rid rid_code = C_RID_CODE (yylval.ttype);
3668 if (!OBJC_IS_AT_KEYWORD (rid_code)
3669 && (!OBJC_IS_PQ_KEYWORD (rid_code) || objc_pq_context))
3672 int yycode = rid_to_yy[(int) rid_code];
3673 if (yycode == STRING_FUNC_NAME)
3675 /* __FUNCTION__ and __PRETTY_FUNCTION__ get converted
3676 to string constants. */
3677 const char *name = fname_string (rid_code);
3679 yylval.ttype = build_string (strlen (name) + 1, name);
3680 last_token = CPP_STRING; /* so yyerror won't choke */
3684 /* Return the canonical spelling for this keyword. */
3685 yylval.ttype = ridpointers[(int) rid_code];
3690 decl = lookup_name (yylval.ttype);
3693 if (TREE_CODE (decl) == TYPE_DECL)
3699 tree objc_interface_decl = is_class_name (yylval.ttype);
3701 if (objc_interface_decl)
3703 yylval.ttype = objc_interface_decl;
3717 last_token = c_lex (&yylval.ttype);
3720 case CPP_EQ: return '=';
3721 case CPP_NOT: return '!';
3722 case CPP_GREATER: yylval.code = GT_EXPR; return ARITHCOMPARE;
3723 case CPP_LESS: yylval.code = LT_EXPR; return ARITHCOMPARE;
3724 case CPP_PLUS: yylval.code = PLUS_EXPR; return '+';
3725 case CPP_MINUS: yylval.code = MINUS_EXPR; return '-';
3726 case CPP_MULT: yylval.code = MULT_EXPR; return '*';
3727 case CPP_DIV: yylval.code = TRUNC_DIV_EXPR; return '/';
3728 case CPP_MOD: yylval.code = TRUNC_MOD_EXPR; return '%';
3729 case CPP_AND: yylval.code = BIT_AND_EXPR; return '&';
3730 case CPP_OR: yylval.code = BIT_IOR_EXPR; return '|';
3731 case CPP_XOR: yylval.code = BIT_XOR_EXPR; return '^';
3732 case CPP_RSHIFT: yylval.code = RSHIFT_EXPR; return RSHIFT;
3733 case CPP_LSHIFT: yylval.code = LSHIFT_EXPR; return LSHIFT;
3735 case CPP_COMPL: return '~';
3736 case CPP_AND_AND: return ANDAND;
3737 case CPP_OR_OR: return OROR;
3738 case CPP_QUERY: return '?';
3739 case CPP_COLON: return ':';
3740 case CPP_COMMA: return ',';
3741 case CPP_OPEN_PAREN: return '(';
3742 case CPP_CLOSE_PAREN: return ')';
3743 case CPP_EQ_EQ: yylval.code = EQ_EXPR; return EQCOMPARE;
3744 case CPP_NOT_EQ: yylval.code = NE_EXPR; return EQCOMPARE;
3745 case CPP_GREATER_EQ:yylval.code = GE_EXPR; return ARITHCOMPARE;
3746 case CPP_LESS_EQ: yylval.code = LE_EXPR; return ARITHCOMPARE;
3748 case CPP_PLUS_EQ: yylval.code = PLUS_EXPR; return ASSIGN;
3749 case CPP_MINUS_EQ: yylval.code = MINUS_EXPR; return ASSIGN;
3750 case CPP_MULT_EQ: yylval.code = MULT_EXPR; return ASSIGN;
3751 case CPP_DIV_EQ: yylval.code = TRUNC_DIV_EXPR; return ASSIGN;
3752 case CPP_MOD_EQ: yylval.code = TRUNC_MOD_EXPR; return ASSIGN;
3753 case CPP_AND_EQ: yylval.code = BIT_AND_EXPR; return ASSIGN;
3754 case CPP_OR_EQ: yylval.code = BIT_IOR_EXPR; return ASSIGN;
3755 case CPP_XOR_EQ: yylval.code = BIT_XOR_EXPR; return ASSIGN;
3756 case CPP_RSHIFT_EQ: yylval.code = RSHIFT_EXPR; return ASSIGN;
3757 case CPP_LSHIFT_EQ: yylval.code = LSHIFT_EXPR; return ASSIGN;
3759 case CPP_OPEN_SQUARE: return '[';
3760 case CPP_CLOSE_SQUARE: return ']';
3761 case CPP_OPEN_BRACE: return '{';
3762 case CPP_CLOSE_BRACE: return '}';
3763 case CPP_SEMICOLON: return ';';
3764 case CPP_ELLIPSIS: return ELLIPSIS;
3766 case CPP_PLUS_PLUS: return PLUSPLUS;
3767 case CPP_MINUS_MINUS: return MINUSMINUS;
3768 case CPP_DEREF: return POINTSAT;
3769 case CPP_DOT: return '.';
3772 if (cpp_pop_buffer (parse_in) == 0)
3777 return yylexname ();
3790 /* This token is Objective-C specific. It gives the next
3791 token special significance. */
3796 enum cpp_ttype after_at_type;
3798 cpp_start_lookahead (parse_in);
3799 after_at_type = c_lex (&after_at);
3801 if (after_at_type == CPP_NAME
3802 && C_IS_RESERVED_WORD (after_at)
3803 && OBJC_IS_AT_KEYWORD (C_RID_CODE (after_at)))
3805 cpp_stop_lookahead (parse_in, 1); /* accept this token */
3806 yylval.ttype = after_at;
3807 last_token = after_at_type;
3808 return rid_to_yy [(int) C_RID_CODE (after_at)];
3810 cpp_stop_lookahead (parse_in, 0); /* put back this token */
3815 /* These tokens are C++ specific (and will not be generated
3816 in C mode, but let's be cautious). */
3818 case CPP_DEREF_STAR:
3824 /* These tokens should not survive translation phase 4. */
3827 error ("syntax error at '%s' token", NAME(last_token));
3840 timevar_push (TV_LEX);
3842 timevar_pop (TV_LEX);
3846 /* Sets the value of the 'yydebug' variable to VALUE.
3847 This is a function so we don't have to have YYDEBUG defined
3848 in order to build the compiler. */
3857 warning ("YYDEBUG not defined.");
3861 /* Function used when yydebug is set, to print a token in more detail. */
3864 yyprint (file, yychar, yyl)
3871 fprintf (file, " [%s]", NAME(last_token));
3881 if (IDENTIFIER_POINTER (t))
3882 fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
3886 fprintf (file, " %s", GET_MODE_NAME (TYPE_MODE (TREE_TYPE (t))));
3887 if (TREE_CODE (t) == INTEGER_CST)
3889 #if HOST_BITS_PER_WIDE_INT == 64
3890 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
3893 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
3900 #if HOST_BITS_PER_WIDE_INT != HOST_BITS_PER_INT
3906 TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
3911 /* This is not the ideal place to put these, but we have to get them out
3912 of c-lex.c because cp/lex.c has its own versions. */
3914 /* Return something to represent absolute declarators containing a *.
3915 TARGET is the absolute declarator that the * contains.
3916 TYPE_QUALS is a list of modifiers such as const or volatile
3917 to apply to the pointer type, represented as identifiers.
3919 We return an INDIRECT_REF whose "contents" are TARGET
3920 and whose type is the modifier list. */
3923 make_pointer_declarator (type_quals, target)
3924 tree type_quals, target;
3926 return build1 (INDIRECT_REF, type_quals, target);