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. */
55 #ifdef MULTIBYTE_CHARS
63 /* Since parsers are distinct for each language, put the language string
66 const char * const language_string = "GNU Objective-C";
69 const char * const language_string = "GNU C";
72 /* Like YYERROR but do call yyerror. */
73 #define YYERROR1 { yyerror ("syntax error"); YYERROR; }
75 /* Cause the "yydebug" variable to be defined. */
78 /* Rename the "yyparse" function so that we can override it elsewhere. */
79 #define yyparse yyparse_1
84 %union {long itype; tree ttype; enum tree_code code;
85 const char *filename; int lineno; }
87 /* All identifiers that are not reserved words
88 and are not declared typedefs in the current block */
91 /* All identifiers that are declared typedefs in the current block.
92 In some contexts, they are treated just like IDENTIFIER,
93 but they can also serve as typespecs in declarations. */
96 /* Reserved words that specify storage class.
97 yylval contains an IDENTIFIER_NODE which indicates which one. */
100 /* Reserved words that specify type.
101 yylval contains an IDENTIFIER_NODE which indicates which one. */
104 /* Reserved words that qualify type: "const", "volatile", or "restrict".
105 yylval contains an IDENTIFIER_NODE which indicates which one. */
108 /* Character or numeric constants.
109 yylval is the node for the constant. */
112 /* String constants in raw form.
113 yylval is a STRING_CST node. */
116 /* "...", used for functions with variable arglists. */
119 /* the reserved words */
120 /* SCO include files test "ASM", so use something else. */
121 %token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
122 %token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
123 %token ATTRIBUTE EXTENSION LABEL
124 %token REALPART IMAGPART VA_ARG
125 %token PTR_VALUE PTR_BASE PTR_EXTENT
127 /* function name can be a string const or a var decl. */
128 %token STRING_FUNC_NAME VAR_FUNC_NAME
130 /* Add precedence rules to solve dangling else s/r conflict */
134 /* Define the operator tokens and their precedences.
135 The value is an integer because, if used, it is the tree code
136 to use in the expression made from the operator. */
138 %right <code> ASSIGN '='
139 %right <code> '?' ':'
145 %left <code> EQCOMPARE
146 %left <code> ARITHCOMPARE
147 %left <code> LSHIFT RSHIFT
149 %left <code> '*' '/' '%'
150 %right <code> UNARY PLUSPLUS MINUSMINUS
152 %left <code> POINTSAT '.' '(' '['
154 /* The Objective-C keywords. These are included in C and in
155 Objective C, so that the token codes are the same in both. */
156 %token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
157 %token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
159 /* Objective-C string constants in raw form.
160 yylval is an STRING_CST node. */
165 %type <ttype> ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
166 %type <ttype> BREAK CONTINUE RETURN GOTO ASM_KEYWORD SIZEOF TYPEOF ALIGNOF
168 %type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
169 %type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
170 %type <ttype> declspecs_nosc_nots_nosa_noea declspecs_nosc_nots_nosa_ea
171 %type <ttype> declspecs_nosc_nots_sa_noea declspecs_nosc_nots_sa_ea
172 %type <ttype> declspecs_nosc_ts_nosa_noea declspecs_nosc_ts_nosa_ea
173 %type <ttype> declspecs_nosc_ts_sa_noea declspecs_nosc_ts_sa_ea
174 %type <ttype> declspecs_sc_nots_nosa_noea declspecs_sc_nots_nosa_ea
175 %type <ttype> declspecs_sc_nots_sa_noea declspecs_sc_nots_sa_ea
176 %type <ttype> declspecs_sc_ts_nosa_noea declspecs_sc_ts_nosa_ea
177 %type <ttype> declspecs_sc_ts_sa_noea declspecs_sc_ts_sa_ea
178 %type <ttype> declspecs_ts declspecs_nots
179 %type <ttype> declspecs_ts_nosa declspecs_nots_nosa
180 %type <ttype> declspecs_nosc_ts declspecs_nosc_nots declspecs_nosc declspecs
181 %type <ttype> maybe_type_quals_setattrs typespec_nonattr typespec_attr
182 %type <ttype> typespec_reserved_nonattr typespec_reserved_attr
183 %type <ttype> typespec_nonreserved_nonattr
185 %type <ttype> SCSPEC TYPESPEC TYPE_QUAL maybe_type_qual
186 %type <ttype> initdecls notype_initdecls initdcl notype_initdcl
187 %type <ttype> init maybeasm
188 %type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
189 %type <ttype> maybe_attribute attributes attribute attribute_list attrib
190 %type <ttype> maybe_setattrs
191 %type <ttype> any_word extension
193 %type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
194 %type <ttype> do_stmt_start poplevel stmt label
196 %type <ttype> c99_block_start c99_block_end
197 %type <ttype> declarator
198 %type <ttype> notype_declarator after_type_declarator
199 %type <ttype> parm_declarator
201 %type <ttype> structsp_attr structsp_nonattr
202 %type <ttype> component_decl_list component_decl_list2
203 %type <ttype> component_decl components components_notype component_declarator
204 %type <ttype> component_notype_declarator
205 %type <ttype> enumlist enumerator
206 %type <ttype> struct_head union_head enum_head
207 %type <ttype> typename absdcl absdcl1 absdcl1_ea absdcl1_noea
208 %type <ttype> direct_absdcl1 absdcl_maybe_attribute
209 %type <ttype> xexpr parms parm firstparm identifiers
211 %type <ttype> parmlist parmlist_1 parmlist_2
212 %type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
213 %type <ttype> identifiers_or_typenames
215 %type <itype> setspecs setspecs_fp
217 %type <filename> save_filename
218 %type <lineno> save_lineno
221 /* the Objective-C nonterminals */
223 %type <ttype> ivar_decl_list ivar_decls ivar_decl ivars ivar_declarator
224 %type <ttype> methoddecl unaryselector keywordselector selector
225 %type <ttype> keyworddecl receiver objcmessageexpr messageargs
226 %type <ttype> keywordexpr keywordarglist keywordarg
227 %type <ttype> myparms myparm optparmlist reservedwords objcselectorexpr
228 %type <ttype> selectorarg keywordnamelist keywordname objcencodeexpr
229 %type <ttype> objc_string non_empty_protocolrefs protocolrefs identifier_list objcprotocolexpr
231 %type <ttype> CLASSNAME OBJC_STRING OBJECTNAME
235 /* Number of statements (loosely speaking) and compound statements
237 static int stmt_count;
238 static int compstmt_count;
240 /* Input file and line number of the end of the body of last simple_if;
241 used by the stmt-rule immediately after simple_if returns. */
242 static const char *if_stmt_file;
243 static int if_stmt_line;
245 /* List of types and structure classes of the current declaration. */
246 static tree current_declspecs = NULL_TREE;
247 static tree prefix_attributes = NULL_TREE;
249 /* Stack of saved values of current_declspecs and prefix_attributes. */
250 static tree declspec_stack;
252 /* For __extension__, save/restore the warning flags which are
253 controlled by __extension__. */
254 #define SAVE_WARN_FLAGS() \
255 size_int (pedantic | (warn_pointer_arith << 1))
256 #define RESTORE_WARN_FLAGS(tval) \
258 int val = tree_low_cst (tval, 0); \
259 pedantic = val & 1; \
260 warn_pointer_arith = (val >> 1) & 1; \
264 /* Objective-C specific information */
266 tree objc_interface_context;
267 tree objc_implementation_context;
268 tree objc_method_context;
269 tree objc_ivar_chain;
270 tree objc_ivar_context;
271 enum tree_code objc_inherit_code;
272 int objc_receiver_context;
273 int objc_public_flag;
277 /* Tell yyparse how to print a token's value, if yydebug is set. */
279 #define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
281 static void yyprint PARAMS ((FILE *, int, YYSTYPE));
282 static void yyerror PARAMS ((const char *));
283 static int yylexname PARAMS ((void));
284 static inline int _yylex PARAMS ((void));
285 static int yylex PARAMS ((void));
286 static void init_reswords PARAMS ((void));
288 /* Add GC roots for variables local to this file. */
292 ggc_add_tree_root (&declspec_stack, 1);
293 ggc_add_tree_root (¤t_declspecs, 1);
294 ggc_add_tree_root (&prefix_attributes, 1);
296 ggc_add_tree_root (&objc_interface_context, 1);
297 ggc_add_tree_root (&objc_implementation_context, 1);
298 ggc_add_tree_root (&objc_method_context, 1);
299 ggc_add_tree_root (&objc_ivar_chain, 1);
300 ggc_add_tree_root (&objc_ivar_context, 1);
309 pedwarn ("ISO C forbids an empty source file");
314 /* In case there were missing closebraces,
315 get us back to the global binding level. */
316 while (! global_bindings_p ())
319 finish_fname_decls ();
325 /* the reason for the strange actions in this rule
326 is so that notype_initdecls when reached via datadef
327 can find a valid list of type and sc specs in $0. */
330 {$<ttype>$ = NULL_TREE; } extdef
331 | extdefs {$<ttype>$ = NULL_TREE; ggc_collect(); } extdef
340 | ASM_KEYWORD '(' expr ')' ';'
342 if ((TREE_CODE ($3) == ADDR_EXPR
343 && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
344 || TREE_CODE ($3) == STRING_CST)
347 error ("argument of `asm' is not a constant string"); }
349 { RESTORE_WARN_FLAGS ($1); }
353 setspecs notype_initdecls ';'
355 error ("ISO C forbids data definition with no type or storage class");
356 else if (!flag_traditional)
357 warning ("data definition has no type or storage class");
359 current_declspecs = TREE_VALUE (declspec_stack);
360 prefix_attributes = TREE_PURPOSE (declspec_stack);
361 declspec_stack = TREE_CHAIN (declspec_stack); }
362 | declspecs_nots setspecs notype_initdecls ';'
363 { current_declspecs = TREE_VALUE (declspec_stack);
364 prefix_attributes = TREE_PURPOSE (declspec_stack);
365 declspec_stack = TREE_CHAIN (declspec_stack); }
366 | declspecs_ts setspecs initdecls ';'
367 { current_declspecs = TREE_VALUE (declspec_stack);
368 prefix_attributes = TREE_PURPOSE (declspec_stack);
369 declspec_stack = TREE_CHAIN (declspec_stack); }
376 pedwarn ("ISO C does not allow extra `;' outside of a function"); }
380 declspecs_ts setspecs declarator
381 { if (! start_function (current_declspecs, $3,
382 prefix_attributes, NULL_TREE))
386 { store_parm_decls (); }
387 save_filename save_lineno compstmt_or_error
388 { DECL_SOURCE_FILE (current_function_decl) = $7;
389 DECL_SOURCE_LINE (current_function_decl) = $8;
391 current_declspecs = TREE_VALUE (declspec_stack);
392 prefix_attributes = TREE_PURPOSE (declspec_stack);
393 declspec_stack = TREE_CHAIN (declspec_stack); }
394 | declspecs_ts setspecs declarator error
395 { current_declspecs = TREE_VALUE (declspec_stack);
396 prefix_attributes = TREE_PURPOSE (declspec_stack);
397 declspec_stack = TREE_CHAIN (declspec_stack); }
398 | declspecs_nots setspecs notype_declarator
399 { if (! start_function (current_declspecs, $3,
400 prefix_attributes, NULL_TREE))
404 { store_parm_decls (); }
405 save_filename save_lineno compstmt_or_error
406 { DECL_SOURCE_FILE (current_function_decl) = $7;
407 DECL_SOURCE_LINE (current_function_decl) = $8;
409 current_declspecs = TREE_VALUE (declspec_stack);
410 prefix_attributes = TREE_PURPOSE (declspec_stack);
411 declspec_stack = TREE_CHAIN (declspec_stack); }
412 | declspecs_nots setspecs notype_declarator error
413 { current_declspecs = TREE_VALUE (declspec_stack);
414 prefix_attributes = TREE_PURPOSE (declspec_stack);
415 declspec_stack = TREE_CHAIN (declspec_stack); }
416 | setspecs notype_declarator
417 { if (! start_function (NULL_TREE, $2,
418 prefix_attributes, NULL_TREE))
422 { store_parm_decls (); }
423 save_filename save_lineno compstmt_or_error
424 { DECL_SOURCE_FILE (current_function_decl) = $6;
425 DECL_SOURCE_LINE (current_function_decl) = $7;
427 current_declspecs = TREE_VALUE (declspec_stack);
428 prefix_attributes = TREE_PURPOSE (declspec_stack);
429 declspec_stack = TREE_CHAIN (declspec_stack); }
430 | setspecs notype_declarator error
431 { current_declspecs = TREE_VALUE (declspec_stack);
432 prefix_attributes = TREE_PURPOSE (declspec_stack);
433 declspec_stack = TREE_CHAIN (declspec_stack); }
448 { $$ = NEGATE_EXPR; }
452 if (warn_traditional && !in_system_header)
453 warning ("traditional C rejects the unary plus operator");
457 { $$ = PREINCREMENT_EXPR; }
459 { $$ = PREDECREMENT_EXPR; }
461 { $$ = BIT_NOT_EXPR; }
463 { $$ = TRUTH_NOT_EXPR; }
466 expr: nonnull_exprlist
467 { $$ = build_compound_expr ($1); }
478 { $$ = build_tree_list (NULL_TREE, $1); }
479 | nonnull_exprlist ',' expr_no_commas
480 { chainon ($1, build_tree_list (NULL_TREE, $3)); }
485 | '*' cast_expr %prec UNARY
486 { $$ = build_indirect_ref ($2, "unary *"); }
487 /* __extension__ turns off -pedantic for following primary. */
488 | extension cast_expr %prec UNARY
490 RESTORE_WARN_FLAGS ($1); }
491 | unop cast_expr %prec UNARY
492 { $$ = build_unary_op ($1, $2, 0);
493 overflow_warning ($$); }
494 /* Refer to the address of a label as a pointer. */
496 { $$ = finish_label_address_expr ($2); }
497 /* This seems to be impossible on some machines, so let's turn it off.
498 You can use __builtin_next_arg to find the anonymous stack args.
500 { tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
501 $$ = error_mark_node;
502 if (TREE_VALUE (tree_last (types)) == void_type_node)
503 error ("`&...' used in function with fixed number of arguments");
507 pedwarn ("ISO C forbids `&...'");
508 $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
509 $$ = build_unary_op (ADDR_EXPR, $$, 0);
512 | sizeof unary_expr %prec UNARY
514 if (TREE_CODE ($2) == COMPONENT_REF
515 && DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
516 error ("`sizeof' applied to a bit-field");
517 $$ = c_sizeof (TREE_TYPE ($2)); }
518 | sizeof '(' typename ')' %prec HYPERUNARY
520 $$ = c_sizeof (groktypename ($3)); }
521 | alignof unary_expr %prec UNARY
523 $$ = c_alignof_expr ($2); }
524 | alignof '(' typename ')' %prec HYPERUNARY
526 $$ = c_alignof (groktypename ($3)); }
527 | REALPART cast_expr %prec UNARY
528 { $$ = build_unary_op (REALPART_EXPR, $2, 0); }
529 | IMAGPART cast_expr %prec UNARY
530 { $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
534 SIZEOF { skip_evaluation++; }
538 ALIGNOF { skip_evaluation++; }
543 | '(' typename ')' cast_expr %prec UNARY
544 { $$ = c_cast_expr ($2, $4); }
549 | expr_no_commas '+' expr_no_commas
550 { $$ = parser_build_binary_op ($2, $1, $3); }
551 | expr_no_commas '-' expr_no_commas
552 { $$ = parser_build_binary_op ($2, $1, $3); }
553 | expr_no_commas '*' expr_no_commas
554 { $$ = parser_build_binary_op ($2, $1, $3); }
555 | expr_no_commas '/' expr_no_commas
556 { $$ = parser_build_binary_op ($2, $1, $3); }
557 | expr_no_commas '%' expr_no_commas
558 { $$ = parser_build_binary_op ($2, $1, $3); }
559 | expr_no_commas LSHIFT expr_no_commas
560 { $$ = parser_build_binary_op ($2, $1, $3); }
561 | expr_no_commas RSHIFT expr_no_commas
562 { $$ = parser_build_binary_op ($2, $1, $3); }
563 | expr_no_commas ARITHCOMPARE expr_no_commas
564 { $$ = parser_build_binary_op ($2, $1, $3); }
565 | expr_no_commas EQCOMPARE expr_no_commas
566 { $$ = parser_build_binary_op ($2, $1, $3); }
567 | expr_no_commas '&' expr_no_commas
568 { $$ = parser_build_binary_op ($2, $1, $3); }
569 | expr_no_commas '|' expr_no_commas
570 { $$ = parser_build_binary_op ($2, $1, $3); }
571 | expr_no_commas '^' expr_no_commas
572 { $$ = parser_build_binary_op ($2, $1, $3); }
573 | expr_no_commas ANDAND
574 { $1 = truthvalue_conversion (default_conversion ($1));
575 skip_evaluation += $1 == boolean_false_node; }
577 { skip_evaluation -= $1 == boolean_false_node;
578 $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
579 | expr_no_commas OROR
580 { $1 = truthvalue_conversion (default_conversion ($1));
581 skip_evaluation += $1 == boolean_true_node; }
583 { skip_evaluation -= $1 == boolean_true_node;
584 $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
586 { $1 = truthvalue_conversion (default_conversion ($1));
587 skip_evaluation += $1 == boolean_false_node; }
589 { skip_evaluation += (($1 == boolean_true_node)
590 - ($1 == boolean_false_node)); }
592 { skip_evaluation -= $1 == boolean_true_node;
593 $$ = build_conditional_expr ($1, $4, $7); }
596 pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
597 /* Make sure first operand is calculated only once. */
598 $<ttype>2 = save_expr ($1);
599 $1 = truthvalue_conversion (default_conversion ($<ttype>2));
600 skip_evaluation += $1 == boolean_true_node; }
602 { skip_evaluation -= $1 == boolean_true_node;
603 $$ = build_conditional_expr ($1, $<ttype>2, $5); }
604 | expr_no_commas '=' expr_no_commas
606 $$ = build_modify_expr ($1, NOP_EXPR, $3);
607 class = TREE_CODE_CLASS (TREE_CODE ($$));
608 if (class == 'e' || class == '1'
609 || class == '2' || class == '<')
610 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
612 | expr_no_commas ASSIGN expr_no_commas
614 $$ = build_modify_expr ($1, $2, $3);
615 /* This inhibits warnings in truthvalue_conversion. */
616 class = TREE_CODE_CLASS (TREE_CODE ($$));
617 if (class == 'e' || class == '1'
618 || class == '2' || class == '<')
619 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
626 if (yychar == YYEMPTY)
628 $$ = build_external_ref ($1, yychar == '(');
632 { $$ = combine_strings ($1); }
634 { $$ = fname_decl (C_RID_CODE ($$), $$); }
635 | '(' typename ')' '{'
636 { start_init (NULL_TREE, NULL, 0);
637 $2 = groktypename ($2);
638 really_start_incremental_init ($2); }
639 initlist_maybe_comma '}' %prec UNARY
641 tree result = pop_init_level (0);
645 if (pedantic && ! flag_isoc99)
646 pedwarn ("ISO C89 forbids compound literals");
647 if (TYPE_NAME (type) != 0)
649 if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
650 name = IDENTIFIER_POINTER (TYPE_NAME (type));
652 name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
657 if (TREE_CODE (type) == ARRAY_TYPE && !COMPLETE_TYPE_P (type))
659 int failure = complete_array_type (type, $$, 1);
665 { char class = TREE_CODE_CLASS (TREE_CODE ($2));
666 if (class == 'e' || class == '1'
667 || class == '2' || class == '<')
668 C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
671 { $$ = error_mark_node; }
672 | compstmt_primary_start compstmt_nostart ')'
673 { tree saved_last_tree;
676 pedwarn ("ISO C forbids braced-groups within expressions");
679 saved_last_tree = COMPOUND_BODY ($1);
680 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
681 last_tree = saved_last_tree;
682 TREE_CHAIN (last_tree) = NULL_TREE;
684 last_expr_type = void_type_node;
685 $$ = build1 (STMT_EXPR, last_expr_type, $1);
686 TREE_SIDE_EFFECTS ($$) = 1;
688 | compstmt_primary_start error ')'
691 last_tree = COMPOUND_BODY ($1);
692 TREE_CHAIN (last_tree) = NULL_TREE;
693 $$ = error_mark_node;
695 | primary '(' exprlist ')' %prec '.'
696 { $$ = build_function_call ($1, $3); }
697 | VA_ARG '(' expr_no_commas ',' typename ')'
698 { $$ = build_va_arg ($3, groktypename ($5)); }
699 | primary '[' expr ']' %prec '.'
700 { $$ = build_array_ref ($1, $3); }
701 | primary '.' identifier
704 if (!is_public ($1, $3))
705 $$ = error_mark_node;
708 $$ = build_component_ref ($1, $3);
710 | primary POINTSAT identifier
712 tree expr = build_indirect_ref ($1, "->");
715 if (!is_public (expr, $3))
716 $$ = error_mark_node;
719 $$ = build_component_ref (expr, $3);
722 { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
724 { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
727 { $$ = build_message_expr ($1); }
729 { $$ = build_selector_expr ($1); }
731 { $$ = build_protocol_expr ($1); }
733 { $$ = build_encode_expr ($1); }
735 { $$ = build_objc_string_object ($1); }
739 /* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
745 static int last_lineno = 0;
746 static const char *last_input_filename = 0;
748 $$ = chainon ($1, $2);
750 if (warn_traditional && !in_system_header
751 && (lineno != last_lineno || !last_input_filename ||
752 strcmp (last_input_filename, input_filename)))
754 warning ("traditional C rejects string concatenation");
755 last_lineno = lineno;
756 last_input_filename = input_filename;
763 /* Produces an STRING_CST with perhaps more STRING_CSTs chained
764 onto it, which is to be read as an ObjC string object. */
767 | objc_string OBJC_STRING
768 { $$ = chainon ($1, $2); }
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>$, $2, global_bindings_p ()); }
1458 /* Note how the declaration of the variable is in effect while its init is parsed! */
1460 decl_attributes ($<ttype>5, $3, prefix_attributes);
1461 finish_decl ($<ttype>5, $6, $2); }
1462 | notype_declarator maybeasm maybe_attribute
1463 { tree d = start_decl ($1, current_declspecs, 0,
1464 $3, prefix_attributes);
1465 finish_decl (d, NULL_TREE, $2); }
1467 /* the * rules are dummies to accept the Apollo extended syntax
1468 so that the header files compile. */
1479 | attributes attribute
1480 { $$ = chainon ($1, $2); }
1484 ATTRIBUTE '(' '(' attribute_list ')' ')'
1491 | attribute_list ',' attrib
1492 { $$ = chainon ($1, $3); }
1499 { $$ = build_tree_list ($1, NULL_TREE); }
1500 | any_word '(' IDENTIFIER ')'
1501 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
1502 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
1503 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
1504 | any_word '(' exprlist ')'
1505 { $$ = build_tree_list ($1, $3); }
1508 /* This still leaves out most reserved keywords,
1509 shouldn't we include them? */
1518 /* Initializers. `init' is the entry point. */
1523 { really_start_incremental_init (NULL_TREE); }
1524 initlist_maybe_comma '}'
1525 { $$ = pop_init_level (0); }
1527 { $$ = error_mark_node; }
1530 /* `initlist_maybe_comma' is the guts of an initializer in braces. */
1531 initlist_maybe_comma:
1534 pedwarn ("ISO C forbids empty initializer braces"); }
1535 | initlist1 maybecomma
1540 | initlist1 ',' initelt
1543 /* `initelt' is a single element of an initializer.
1544 It may use braces. */
1546 designator_list '=' initval
1547 { if (pedantic && ! flag_isoc99)
1548 pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
1549 | designator initval
1551 pedwarn ("obsolete use of designated initializer without `='"); }
1553 { set_init_label ($1);
1555 pedwarn ("obsolete use of designated initializer with `:'"); }
1562 { push_init_level (0); }
1563 initlist_maybe_comma '}'
1564 { process_init_element (pop_init_level (0)); }
1566 { process_init_element ($1); }
1572 | designator_list designator
1577 { set_init_label ($2); }
1578 /* These are for labeled elements. The syntax for an array element
1579 initializer conflicts with the syntax for an Objective-C message,
1580 so don't include these productions in the Objective-C grammar. */
1582 | '[' expr_no_commas ELLIPSIS expr_no_commas ']'
1583 { set_init_index ($2, $4);
1585 pedwarn ("ISO C forbids specifying range of elements to initialize"); }
1586 | '[' expr_no_commas ']'
1587 { set_init_index ($2, NULL_TREE); }
1594 pedwarn ("ISO C forbids nested functions");
1596 push_function_context ();
1597 if (! start_function (current_declspecs, $1,
1598 prefix_attributes, NULL_TREE))
1600 pop_function_context ();
1604 old_style_parm_decls
1605 { store_parm_decls (); }
1606 /* This used to use compstmt_or_error.
1607 That caused a bug with input `f(g) int g {}',
1608 where the use of YYERROR1 above caused an error
1609 which then was handled by compstmt_or_error.
1610 There followed a repeated execution of that same rule,
1611 which called YYERROR1 again, and so on. */
1612 save_filename save_lineno compstmt
1613 { tree decl = current_function_decl;
1614 DECL_SOURCE_FILE (decl) = $5;
1615 DECL_SOURCE_LINE (decl) = $6;
1616 finish_function (1);
1617 pop_function_context ();
1618 add_decl_stmt (decl); }
1621 notype_nested_function:
1624 pedwarn ("ISO C forbids nested functions");
1626 push_function_context ();
1627 if (! start_function (current_declspecs, $1,
1628 prefix_attributes, NULL_TREE))
1630 pop_function_context ();
1634 old_style_parm_decls
1635 { store_parm_decls (); }
1636 /* This used to use compstmt_or_error.
1637 That caused a bug with input `f(g) int g {}',
1638 where the use of YYERROR1 above caused an error
1639 which then was handled by compstmt_or_error.
1640 There followed a repeated execution of that same rule,
1641 which called YYERROR1 again, and so on. */
1642 save_filename save_lineno compstmt
1643 { tree decl = current_function_decl;
1644 DECL_SOURCE_FILE (decl) = $5;
1645 DECL_SOURCE_LINE (decl) = $6;
1646 finish_function (1);
1647 pop_function_context ();
1648 add_decl_stmt (decl); }
1651 /* Any kind of declarator (thus, all declarators allowed
1652 after an explicit typespec). */
1655 after_type_declarator
1659 /* A declarator that is allowed only after an explicit typespec. */
1661 after_type_declarator:
1662 '(' maybe_setattrs after_type_declarator ')'
1664 | after_type_declarator '(' parmlist_or_identifiers %prec '.'
1665 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1666 /* | after_type_declarator '(' error ')' %prec '.'
1667 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1668 poplevel (0, 0, 0); } */
1669 | after_type_declarator '[' expr ']' %prec '.'
1670 { $$ = build_nt (ARRAY_REF, $1, $3); }
1671 | after_type_declarator '[' ']' %prec '.'
1672 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
1673 | '*' maybe_type_quals_setattrs after_type_declarator %prec UNARY
1674 { $$ = make_pointer_declarator ($2, $3); }
1681 /* Kinds of declarator that can appear in a parameter list
1682 in addition to notype_declarator. This is like after_type_declarator
1683 but does not allow a typedef name in parentheses as an identifier
1684 (because it would conflict with a function with that typedef as arg). */
1687 parm_declarator '(' parmlist_or_identifiers %prec '.'
1688 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1689 /* | parm_declarator '(' error ')' %prec '.'
1690 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1691 poplevel (0, 0, 0); } */
1693 | parm_declarator '[' '*' ']' %prec '.'
1694 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE);
1696 error ("`[*]' in parameter declaration only allowed in ISO C 99");
1699 | parm_declarator '[' expr ']' %prec '.'
1700 { $$ = build_nt (ARRAY_REF, $1, $3); }
1701 | parm_declarator '[' ']' %prec '.'
1702 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
1703 | '*' maybe_type_quals_setattrs parm_declarator %prec UNARY
1704 { $$ = make_pointer_declarator ($2, $3); }
1708 /* A declarator allowed whether or not there has been
1709 an explicit typespec. These cannot redeclare a typedef-name. */
1712 notype_declarator '(' parmlist_or_identifiers %prec '.'
1713 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1714 /* | notype_declarator '(' error ')' %prec '.'
1715 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1716 poplevel (0, 0, 0); } */
1717 | '(' maybe_setattrs notype_declarator ')'
1719 | '*' maybe_type_quals_setattrs notype_declarator %prec UNARY
1720 { $$ = make_pointer_declarator ($2, $3); }
1722 | notype_declarator '[' '*' ']' %prec '.'
1723 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE);
1725 error ("`[*]' in parameter declaration only allowed in ISO C 99");
1728 | notype_declarator '[' expr ']' %prec '.'
1729 { $$ = build_nt (ARRAY_REF, $1, $3); }
1730 | notype_declarator '[' ']' %prec '.'
1731 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
1756 /* structsp_attr: struct/union/enum specifiers that either
1757 end with attributes, or are such that any following attributes would
1758 be parsed as part of the struct/union/enum specifier.
1760 structsp_nonattr: other struct/union/enum specifiers. */
1763 struct_head identifier '{'
1764 { $$ = start_struct (RECORD_TYPE, $2);
1765 /* Start scope of tag before parsing components. */
1767 component_decl_list '}' maybe_attribute
1768 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1769 | struct_head '{' component_decl_list '}' maybe_attribute
1770 { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
1771 $3, chainon ($1, $5));
1773 | union_head identifier '{'
1774 { $$ = start_struct (UNION_TYPE, $2); }
1775 component_decl_list '}' maybe_attribute
1776 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1777 | union_head '{' component_decl_list '}' maybe_attribute
1778 { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
1779 $3, chainon ($1, $5));
1781 | enum_head identifier '{'
1782 { $$ = start_enum ($2); }
1783 enumlist maybecomma_warn '}' maybe_attribute
1784 { $$ = finish_enum ($<ttype>4, nreverse ($5),
1785 chainon ($1, $8)); }
1787 { $$ = start_enum (NULL_TREE); }
1788 enumlist maybecomma_warn '}' maybe_attribute
1789 { $$ = finish_enum ($<ttype>3, nreverse ($4),
1790 chainon ($1, $7)); }
1794 struct_head identifier
1795 { $$ = xref_tag (RECORD_TYPE, $2); }
1796 | union_head identifier
1797 { $$ = xref_tag (UNION_TYPE, $2); }
1798 | enum_head identifier
1799 { $$ = xref_tag (ENUMERAL_TYPE, $2);
1800 /* In ISO C, enumerated types can be referred to
1801 only if already defined. */
1802 if (pedantic && !COMPLETE_TYPE_P ($$))
1803 pedwarn ("ISO C forbids forward references to `enum' types"); }
1814 { if (pedantic && ! flag_isoc99)
1815 pedwarn ("comma at end of enumerator list"); }
1818 component_decl_list:
1819 component_decl_list2
1821 | component_decl_list2 component_decl
1822 { $$ = chainon ($1, $2);
1823 pedwarn ("no semicolon at end of struct or union"); }
1826 component_decl_list2: /* empty */
1828 | component_decl_list2 component_decl ';'
1829 { $$ = chainon ($1, $2); }
1830 | component_decl_list2 ';'
1832 pedwarn ("extra semicolon in struct or union specified"); }
1834 /* foo(sizeof(struct{ @defs(ClassName)})); */
1835 | DEFS '(' CLASSNAME ')'
1837 tree interface = lookup_interface ($3);
1840 $$ = get_class_ivars (interface);
1843 error ("Cannot find interface declaration for `%s'",
1844 IDENTIFIER_POINTER ($3));
1852 declspecs_nosc_ts setspecs components
1854 current_declspecs = TREE_VALUE (declspec_stack);
1855 prefix_attributes = TREE_PURPOSE (declspec_stack);
1856 declspec_stack = TREE_CHAIN (declspec_stack); }
1857 | declspecs_nosc_ts setspecs save_filename save_lineno
1859 /* Support for unnamed structs or unions as members of
1860 structs or unions (which is [a] useful and [b] supports
1863 pedwarn ("ISO C doesn't support unnamed structs/unions");
1865 $$ = grokfield($3, $4, NULL, current_declspecs, NULL_TREE);
1866 current_declspecs = TREE_VALUE (declspec_stack);
1867 prefix_attributes = TREE_PURPOSE (declspec_stack);
1868 declspec_stack = TREE_CHAIN (declspec_stack);
1870 | declspecs_nosc_nots setspecs components_notype
1872 current_declspecs = TREE_VALUE (declspec_stack);
1873 prefix_attributes = TREE_PURPOSE (declspec_stack);
1874 declspec_stack = TREE_CHAIN (declspec_stack); }
1875 | declspecs_nosc_nots
1877 pedwarn ("ISO C forbids member declarations with no members");
1882 | extension component_decl
1884 RESTORE_WARN_FLAGS ($1); }
1888 component_declarator
1889 | components ',' maybe_setattrs component_declarator
1890 { $$ = chainon ($1, $4); }
1894 component_notype_declarator
1895 | components_notype ',' maybe_setattrs component_notype_declarator
1896 { $$ = chainon ($1, $4); }
1899 component_declarator:
1900 save_filename save_lineno declarator maybe_attribute
1901 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1902 decl_attributes ($$, $4, prefix_attributes); }
1903 | save_filename save_lineno
1904 declarator ':' expr_no_commas maybe_attribute
1905 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1906 decl_attributes ($$, $6, prefix_attributes); }
1907 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1908 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1909 decl_attributes ($$, $5, prefix_attributes); }
1912 component_notype_declarator:
1913 save_filename save_lineno notype_declarator maybe_attribute
1914 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1915 decl_attributes ($$, $4, prefix_attributes); }
1916 | save_filename save_lineno
1917 notype_declarator ':' expr_no_commas maybe_attribute
1918 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1919 decl_attributes ($$, $6, prefix_attributes); }
1920 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1921 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1922 decl_attributes ($$, $5, prefix_attributes); }
1925 /* We chain the enumerators in reverse order.
1926 They are put in forward order where enumlist is used.
1927 (The order used to be significant, but no longer is so.
1928 However, we still maintain the order, just to be clean.) */
1932 | enumlist ',' enumerator
1933 { if ($1 == error_mark_node)
1936 $$ = chainon ($3, $1); }
1938 { $$ = error_mark_node; }
1944 { $$ = build_enumerator ($1, NULL_TREE); }
1945 | identifier '=' expr_no_commas
1946 { $$ = build_enumerator ($1, $3); }
1951 { tree specs, attrs;
1952 pending_xref_error ();
1953 split_specs_attrs ($1, &specs, &attrs);
1954 /* We don't yet support attributes here. */
1955 if (attrs != NULL_TREE)
1956 warning ("attributes on type name ignored");
1957 $<ttype>$ = specs; }
1959 { $$ = build_tree_list ($<ttype>2, $3); }
1962 absdcl: /* an absolute declarator */
1968 absdcl_maybe_attribute: /* absdcl maybe_attribute, but not just attributes */
1970 { $$ = build_tree_list (build_tree_list (current_declspecs,
1972 build_tree_list (prefix_attributes,
1975 { $$ = build_tree_list (build_tree_list (current_declspecs,
1977 build_tree_list (prefix_attributes,
1979 | absdcl1_noea attributes
1980 { $$ = build_tree_list (build_tree_list (current_declspecs,
1982 build_tree_list (prefix_attributes,
1986 absdcl1: /* a nonempty absolute declarator */
1993 | '*' maybe_type_quals_setattrs absdcl1_noea
1994 { $$ = make_pointer_declarator ($2, $3); }
1998 '*' maybe_type_quals_setattrs
1999 { $$ = make_pointer_declarator ($2, NULL_TREE); }
2000 | '*' maybe_type_quals_setattrs absdcl1_ea
2001 { $$ = make_pointer_declarator ($2, $3); }
2005 '(' maybe_setattrs absdcl1 ')'
2007 | direct_absdcl1 '(' parmlist
2008 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
2009 | direct_absdcl1 '[' expr ']'
2010 { $$ = build_nt (ARRAY_REF, $1, $3); }
2011 | direct_absdcl1 '[' ']'
2012 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
2014 { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
2016 { $$ = build_nt (ARRAY_REF, NULL_TREE, $2); }
2018 { $$ = build_nt (ARRAY_REF, NULL_TREE, NULL_TREE); }
2020 /* A nonempty series of declarations and statements (possibly followed by
2021 some labels) that can form the body of a compound statement.
2022 NOTE: we don't allow labels on declarations; this might seem like a
2023 natural extension, but there would be a conflict between attributes
2024 on the label and prefix attributes on the declaration. */
2027 lineno_stmt_decl_or_labels_ending_stmt
2028 | lineno_stmt_decl_or_labels_ending_decl
2029 | lineno_stmt_decl_or_labels_ending_label
2031 pedwarn ("deprecated use of label at end of compound statement");
2033 | lineno_stmt_decl_or_labels_ending_error
2036 lineno_stmt_decl_or_labels_ending_stmt:
2038 | lineno_stmt_decl_or_labels_ending_stmt lineno_stmt
2039 | lineno_stmt_decl_or_labels_ending_decl lineno_stmt
2040 | lineno_stmt_decl_or_labels_ending_label lineno_stmt
2041 | lineno_stmt_decl_or_labels_ending_error lineno_stmt
2044 lineno_stmt_decl_or_labels_ending_decl:
2046 | lineno_stmt_decl_or_labels_ending_stmt lineno_decl
2047 { if (pedantic && !flag_isoc99)
2048 pedwarn ("ISO C89 forbids mixed declarations and code"); }
2049 | lineno_stmt_decl_or_labels_ending_decl lineno_decl
2050 | lineno_stmt_decl_or_labels_ending_error lineno_decl
2053 lineno_stmt_decl_or_labels_ending_label:
2055 | lineno_stmt_decl_or_labels_ending_stmt lineno_label
2056 | lineno_stmt_decl_or_labels_ending_decl lineno_label
2057 | lineno_stmt_decl_or_labels_ending_label lineno_label
2058 | lineno_stmt_decl_or_labels_ending_error lineno_label
2061 lineno_stmt_decl_or_labels_ending_error:
2063 | lineno_stmt_decl_or_labels errstmt
2066 lineno_stmt_decl_or_labels:
2067 lineno_stmt_decl_or_labels_ending_stmt
2068 | lineno_stmt_decl_or_labels_ending_decl
2069 | lineno_stmt_decl_or_labels_ending_label
2070 | lineno_stmt_decl_or_labels_ending_error
2076 pushlevel: /* empty */
2079 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2081 if (objc_method_context)
2087 poplevel: /* empty */
2088 { $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
2090 /* Start and end blocks created for the new scopes of C99. */
2091 c99_block_start: /* empty */
2094 $$ = c_begin_compound_stmt ();
2097 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2099 if (objc_method_context)
2108 /* Productions using c99_block_start and c99_block_end will need to do what's
2109 in compstmt: RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); $$ = $2; where
2110 $1 is the value of c99_block_start and $2 of c99_block_end. */
2111 c99_block_end: /* empty */
2114 tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
2115 $$ = poplevel (kept_level_p (), 0, 0);
2116 SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
2117 = SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
2124 /* Read zero or more forward-declarations for labels
2125 that nested functions can jump to. */
2130 pedwarn ("ISO C forbids label declarations"); }
2135 | label_decls label_decl
2139 LABEL identifiers_or_typenames ';'
2141 for (link = $2; link; link = TREE_CHAIN (link))
2143 tree label = shadow_label (TREE_VALUE (link));
2144 C_DECLARED_LABEL_FLAG (label) = 1;
2145 add_decl_stmt (label);
2150 /* This is the body of a function definition.
2151 It causes syntax errors to ignore to the next openbrace. */
2158 compstmt_start: '{' { compstmt_count++;
2159 $$ = c_begin_compound_stmt (); }
2161 compstmt_nostart: '}'
2162 { $$ = convert (void_type_node, integer_zero_node); }
2163 | pushlevel maybe_label_decls compstmt_contents_nonempty '}' poplevel
2164 { $$ = poplevel (kept_level_p (), 1, 0);
2165 SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
2166 = SCOPE_STMT_BLOCK (TREE_VALUE ($5))
2170 compstmt_contents_nonempty:
2175 compstmt_primary_start:
2177 { if (current_function_decl == 0)
2179 error ("braced-group within expression allowed only inside a function");
2182 /* We must force a BLOCK for this level
2183 so that, if it is not expanded later,
2184 there is a way to turn off the entire subtree of blocks
2185 that are contained in it. */
2187 push_label_level ();
2189 $$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
2192 compstmt: compstmt_start compstmt_nostart
2193 { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2197 /* Value is number of statements counted as of the closeparen. */
2199 if_prefix c99_block_lineno_labeled_stmt
2200 { c_finish_then (); }
2201 /* Make sure c_expand_end_cond is run once
2202 for each call to c_expand_start_cond.
2203 Otherwise a crash is likely. */
2209 { c_expand_start_cond (truthvalue_conversion ($3),
2211 $<itype>$ = stmt_count;
2212 if_stmt_file = $<filename>-2;
2213 if_stmt_line = $<lineno>-1; }
2216 /* This is a subroutine of stmt.
2217 It is used twice, once for valid DO statements
2218 and once for catching errors in parsing the end test. */
2224 = add_stmt (build_stmt (DO_STMT, NULL_TREE,
2226 /* In the event that a parse error prevents
2227 parsing the complete do-statement, set the
2228 condition now. Otherwise, we can get crashes at
2229 RTL-generation time. */
2230 DO_COND ($<ttype>$) = error_mark_node; }
2231 c99_block_lineno_labeled_stmt WHILE
2233 RECHAIN_STMTS ($$, DO_BODY ($$)); }
2236 /* The forced readahead in here is because we might be at the end of a
2237 line, and the line and file won't be bumped until yylex absorbs the
2238 first token on the next line. */
2240 { if (yychar == YYEMPTY)
2242 $$ = input_filename; }
2246 { if (yychar == YYEMPTY)
2251 lineno_labeled_stmt:
2253 | lineno_label lineno_labeled_stmt
2256 /* Like lineno_labeled_stmt, but a block in C99. */
2257 c99_block_lineno_labeled_stmt:
2258 c99_block_start lineno_labeled_stmt c99_block_end
2260 RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); }
2264 save_filename save_lineno stmt
2267 STMT_LINENO ($3) = $2;
2268 /* ??? We currently have no way of recording
2269 the filename for a statement. This probably
2270 matters little in practice at the moment,
2271 but I suspect that problems will ocurr when
2272 doing inlining at the tree level. */
2278 save_filename save_lineno label
2281 STMT_LINENO ($3) = $2;
2286 select_or_iter_stmt:
2288 { c_expand_start_else ();
2289 $<itype>1 = stmt_count; }
2290 c99_block_lineno_labeled_stmt
2292 c_expand_end_cond ();
2293 if (extra_warnings && stmt_count == $<itype>1)
2294 warning ("empty body in an else-statement"); }
2295 | simple_if %prec IF
2296 { c_expand_end_cond ();
2297 /* This warning is here instead of in simple_if, because we
2298 do not want a warning if an empty if is followed by an
2299 else statement. Increment stmt_count so we don't
2300 give a second error if this is a nested `if'. */
2301 if (extra_warnings && stmt_count++ == $<itype>1)
2302 warning_with_file_and_line (if_stmt_file, if_stmt_line,
2303 "empty body in an if-statement"); }
2304 /* Make sure c_expand_end_cond is run once
2305 for each call to c_expand_start_cond.
2306 Otherwise a crash is likely. */
2307 | simple_if ELSE error
2308 { c_expand_end_cond (); }
2312 { $4 = truthvalue_conversion ($4);
2314 = add_stmt (build_stmt (WHILE_STMT, $4, NULL_TREE)); }
2315 c99_block_lineno_labeled_stmt
2316 { RECHAIN_STMTS ($<ttype>6, WHILE_BODY ($<ttype>6)); }
2319 { DO_COND ($1) = truthvalue_conversion ($3); }
2320 | do_stmt_start error
2323 { $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
2324 NULL_TREE, NULL_TREE);
2325 add_stmt ($<ttype>$); }
2328 RECHAIN_STMTS ($<ttype>2, FOR_INIT_STMT ($<ttype>2)); }
2331 FOR_COND ($<ttype>2) = truthvalue_conversion ($6); }
2333 { FOR_EXPR ($<ttype>2) = $9; }
2334 c99_block_lineno_labeled_stmt
2335 { RECHAIN_STMTS ($<ttype>2, FOR_BODY ($<ttype>2)); }
2336 | SWITCH '(' expr ')'
2338 $<ttype>$ = c_start_case ($3); }
2339 c99_block_lineno_labeled_stmt
2340 { c_finish_case (); }
2345 { add_stmt (build_stmt (EXPR_STMT, $1)); }
2347 { check_for_loop_decls (); }
2350 /* Parse a single real statement, not including any labels. */
2353 { stmt_count++; $$ = $1; }
2356 $$ = c_expand_expr_stmt ($1); }
2357 | c99_block_start select_or_iter_stmt c99_block_end
2359 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2363 $$ = add_stmt (build_break_stmt ()); }
2366 $$ = add_stmt (build_continue_stmt ()); }
2369 $$ = c_expand_return (NULL_TREE); }
2372 $$ = c_expand_return ($2); }
2373 | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
2375 $$ = simple_asm_stmt ($4); }
2376 /* This is the case with just output operands. */
2377 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
2379 $$ = build_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
2380 /* This is the case with input operands as well. */
2381 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2382 asm_operands ')' ';'
2384 $$ = build_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
2385 /* This is the case with clobbered registers as well. */
2386 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2387 asm_operands ':' asm_clobbers ')' ';'
2389 $$ = build_asm_stmt ($2, $4, $6, $8, $10); }
2390 | GOTO identifier ';'
2393 decl = lookup_label ($2);
2396 TREE_USED (decl) = 1;
2397 $$ = add_stmt (build_stmt (GOTO_STMT, decl));
2404 pedwarn ("ISO C forbids `goto *expr;'");
2406 $3 = convert (ptr_type_node, $3);
2407 $$ = add_stmt (build_stmt (GOTO_STMT, $3)); }
2412 /* Any kind of label, including jump labels and case labels.
2413 ANSI C accepts labels only before statements, but we allow them
2414 also at the end of a compound statement. */
2416 label: CASE expr_no_commas ':'
2418 $$ = do_case ($2, NULL_TREE); }
2419 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
2421 $$ = do_case ($2, $4); }
2424 $$ = do_case (NULL_TREE, NULL_TREE); }
2425 | identifier save_filename save_lineno ':' maybe_attribute
2426 { tree label = define_label ($2, $3, $1);
2430 decl_attributes (label, $5, NULL_TREE);
2431 $$ = add_stmt (build_stmt (LABEL_STMT, label));
2438 /* Either a type-qualifier or nothing. First thing in an `asm' statement. */
2442 { emit_line_note (input_filename, lineno);
2445 { emit_line_note (input_filename, lineno); }
2454 /* These are the operands other than the first string and colon
2455 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
2456 asm_operands: /* empty */
2458 | nonnull_asm_operands
2461 nonnull_asm_operands:
2463 | nonnull_asm_operands ',' asm_operand
2464 { $$ = chainon ($1, $3); }
2469 { $$ = build_tree_list ($1, $3); }
2474 { $$ = tree_cons (NULL_TREE, combine_strings ($1), NULL_TREE); }
2475 | asm_clobbers ',' string
2476 { $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
2479 /* This is what appears inside the parens in a function declarator.
2480 Its value is a list of ..._TYPE nodes. Attributes must appear here
2481 to avoid a conflict with their appearance after an open parenthesis
2482 in an abstract declarator, as in
2483 "void bar (int (__attribute__((__mode__(SI))) int foo));". */
2487 clear_parm_order ();
2488 declare_parm_level (0); }
2491 parmlist_tags_warning ();
2492 poplevel (0, 0, 0); }
2500 pedwarn ("ISO C forbids forward parameter declarations");
2501 /* Mark the forward decls as such. */
2502 for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
2503 TREE_ASM_WRITTEN (parm) = 1;
2504 clear_parm_order (); }
2506 { /* Dummy action so attributes are in known place
2507 on parser stack. */ }
2511 { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
2514 /* This is what appears inside the parens in a function declarator.
2515 Is value is represented in the format that grokdeclarator expects. */
2516 parmlist_2: /* empty */
2517 { $$ = get_parm_info (0); }
2519 { $$ = get_parm_info (0);
2520 /* Gcc used to allow this as an extension. However, it does
2521 not work for all targets, and thus has been disabled.
2522 Also, since func (...) and func () are indistinguishable,
2523 it caused problems with the code in expand_builtin which
2524 tries to verify that BUILT_IN_NEXT_ARG is being used
2526 error ("ISO C requires a named argument before `...'");
2529 { $$ = get_parm_info (1); }
2530 | parms ',' ELLIPSIS
2531 { $$ = get_parm_info (0); }
2536 { push_parm_decl ($1); }
2538 { push_parm_decl ($3); }
2541 /* A single parameter declaration or parameter type name,
2542 as found in a parmlist. */
2544 declspecs_ts setspecs parm_declarator maybe_attribute
2545 { $$ = build_tree_list (build_tree_list (current_declspecs,
2547 build_tree_list (prefix_attributes,
2549 current_declspecs = TREE_VALUE (declspec_stack);
2550 prefix_attributes = TREE_PURPOSE (declspec_stack);
2551 declspec_stack = TREE_CHAIN (declspec_stack); }
2552 | declspecs_ts setspecs notype_declarator maybe_attribute
2553 { $$ = build_tree_list (build_tree_list (current_declspecs,
2555 build_tree_list (prefix_attributes,
2557 current_declspecs = TREE_VALUE (declspec_stack);
2558 prefix_attributes = TREE_PURPOSE (declspec_stack);
2559 declspec_stack = TREE_CHAIN (declspec_stack); }
2560 | declspecs_ts setspecs absdcl_maybe_attribute
2562 current_declspecs = TREE_VALUE (declspec_stack);
2563 prefix_attributes = TREE_PURPOSE (declspec_stack);
2564 declspec_stack = TREE_CHAIN (declspec_stack); }
2565 | declspecs_nots setspecs notype_declarator maybe_attribute
2566 { $$ = build_tree_list (build_tree_list (current_declspecs,
2568 build_tree_list (prefix_attributes,
2570 current_declspecs = TREE_VALUE (declspec_stack);
2571 prefix_attributes = TREE_PURPOSE (declspec_stack);
2572 declspec_stack = TREE_CHAIN (declspec_stack); }
2574 | declspecs_nots setspecs absdcl_maybe_attribute
2576 current_declspecs = TREE_VALUE (declspec_stack);
2577 prefix_attributes = TREE_PURPOSE (declspec_stack);
2578 declspec_stack = TREE_CHAIN (declspec_stack); }
2581 /* The first parm, which must suck attributes from off the top of the parser
2584 declspecs_ts_nosa setspecs_fp parm_declarator maybe_attribute
2585 { $$ = build_tree_list (build_tree_list (current_declspecs,
2587 build_tree_list (prefix_attributes,
2589 current_declspecs = TREE_VALUE (declspec_stack);
2590 prefix_attributes = TREE_PURPOSE (declspec_stack);
2591 declspec_stack = TREE_CHAIN (declspec_stack); }
2592 | declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
2593 { $$ = build_tree_list (build_tree_list (current_declspecs,
2595 build_tree_list (prefix_attributes,
2597 current_declspecs = TREE_VALUE (declspec_stack);
2598 prefix_attributes = TREE_PURPOSE (declspec_stack);
2599 declspec_stack = TREE_CHAIN (declspec_stack); }
2600 | declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
2602 current_declspecs = TREE_VALUE (declspec_stack);
2603 prefix_attributes = TREE_PURPOSE (declspec_stack);
2604 declspec_stack = TREE_CHAIN (declspec_stack); }
2605 | declspecs_nots_nosa setspecs_fp notype_declarator maybe_attribute
2606 { $$ = build_tree_list (build_tree_list (current_declspecs,
2608 build_tree_list (prefix_attributes,
2610 current_declspecs = TREE_VALUE (declspec_stack);
2611 prefix_attributes = TREE_PURPOSE (declspec_stack);
2612 declspec_stack = TREE_CHAIN (declspec_stack); }
2614 | declspecs_nots_nosa setspecs_fp absdcl_maybe_attribute
2616 current_declspecs = TREE_VALUE (declspec_stack);
2617 prefix_attributes = TREE_PURPOSE (declspec_stack);
2618 declspec_stack = TREE_CHAIN (declspec_stack); }
2623 { prefix_attributes = chainon (prefix_attributes, $<ttype>-2); }
2626 /* This is used in a function definition
2627 where either a parmlist or an identifier list is ok.
2628 Its value is a list of ..._TYPE nodes or a list of identifiers. */
2629 parmlist_or_identifiers:
2631 clear_parm_order ();
2632 declare_parm_level (1); }
2633 parmlist_or_identifiers_1
2635 parmlist_tags_warning ();
2636 poplevel (0, 0, 0); }
2639 parmlist_or_identifiers_1:
2643 for (t = $1; t; t = TREE_CHAIN (t))
2644 if (TREE_VALUE (t) == NULL_TREE)
2645 error ("`...' in old-style identifier list");
2646 $$ = tree_cons (NULL_TREE, NULL_TREE, $1); }
2649 /* A nonempty list of identifiers. */
2652 { $$ = build_tree_list (NULL_TREE, $1); }
2653 | identifiers ',' IDENTIFIER
2654 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2657 /* A nonempty list of identifiers, including typenames. */
2658 identifiers_or_typenames:
2660 { $$ = build_tree_list (NULL_TREE, $1); }
2661 | identifiers_or_typenames ',' identifier
2662 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2667 { $$ = SAVE_WARN_FLAGS();
2669 warn_pointer_arith = 0; }
2673 /* Objective-C productions. */
2683 if (objc_implementation_context)
2685 finish_class (objc_implementation_context);
2686 objc_ivar_chain = NULL_TREE;
2687 objc_implementation_context = NULL_TREE;
2690 warning ("`@end' must appear in an implementation context");
2694 /* A nonempty list of identifiers. */
2697 { $$ = build_tree_list (NULL_TREE, $1); }
2698 | identifier_list ',' identifier
2699 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2703 CLASS identifier_list ';'
2705 objc_declare_class ($2);
2709 ALIAS identifier identifier ';'
2711 objc_declare_alias ($2, $3);
2715 INTERFACE identifier protocolrefs '{'
2717 objc_interface_context = objc_ivar_context
2718 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2719 objc_public_flag = 0;
2723 continue_class (objc_interface_context);
2728 finish_class (objc_interface_context);
2729 objc_interface_context = NULL_TREE;
2732 | INTERFACE identifier protocolrefs
2734 objc_interface_context
2735 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2736 continue_class (objc_interface_context);
2741 finish_class (objc_interface_context);
2742 objc_interface_context = NULL_TREE;
2745 | INTERFACE identifier ':' identifier protocolrefs '{'
2747 objc_interface_context = objc_ivar_context
2748 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2749 objc_public_flag = 0;
2753 continue_class (objc_interface_context);
2758 finish_class (objc_interface_context);
2759 objc_interface_context = NULL_TREE;
2762 | INTERFACE identifier ':' identifier protocolrefs
2764 objc_interface_context
2765 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2766 continue_class (objc_interface_context);
2771 finish_class (objc_interface_context);
2772 objc_interface_context = NULL_TREE;
2775 | IMPLEMENTATION identifier '{'
2777 objc_implementation_context = objc_ivar_context
2778 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2779 objc_public_flag = 0;
2784 = continue_class (objc_implementation_context);
2787 | IMPLEMENTATION identifier
2789 objc_implementation_context
2790 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2792 = continue_class (objc_implementation_context);
2795 | IMPLEMENTATION identifier ':' identifier '{'
2797 objc_implementation_context = objc_ivar_context
2798 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2799 objc_public_flag = 0;
2804 = continue_class (objc_implementation_context);
2807 | IMPLEMENTATION identifier ':' identifier
2809 objc_implementation_context
2810 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2812 = continue_class (objc_implementation_context);
2815 | INTERFACE identifier '(' identifier ')' protocolrefs
2817 objc_interface_context
2818 = start_class (CATEGORY_INTERFACE_TYPE, $2, $4, $6);
2819 continue_class (objc_interface_context);
2824 finish_class (objc_interface_context);
2825 objc_interface_context = NULL_TREE;
2828 | IMPLEMENTATION identifier '(' identifier ')'
2830 objc_implementation_context
2831 = start_class (CATEGORY_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2833 = continue_class (objc_implementation_context);
2838 PROTOCOL identifier protocolrefs
2840 remember_protocol_qualifiers ();
2841 objc_interface_context
2842 = start_protocol(PROTOCOL_INTERFACE_TYPE, $2, $3);
2846 forget_protocol_qualifiers();
2847 finish_protocol(objc_interface_context);
2848 objc_interface_context = NULL_TREE;
2857 | non_empty_protocolrefs
2860 non_empty_protocolrefs:
2861 ARITHCOMPARE identifier_list ARITHCOMPARE
2863 if ($1 == LT_EXPR && $3 == GT_EXPR)
2871 ivar_decl_list visibility_spec ivar_decls
2876 PRIVATE { objc_public_flag = 2; }
2877 | PROTECTED { objc_public_flag = 0; }
2878 | PUBLIC { objc_public_flag = 1; }
2886 | ivar_decls ivar_decl ';'
2890 pedwarn ("extra semicolon in struct or union specified");
2895 /* There is a shift-reduce conflict here, because `components' may
2896 start with a `typename'. It happens that shifting (the default resolution)
2897 does the right thing, because it treats the `typename' as part of
2898 a `typed_typespecs'.
2900 It is possible that this same technique would allow the distinction
2901 between `notype_initdecls' and `initdecls' to be eliminated.
2902 But I am being cautious and not trying it. */
2905 declspecs_nosc_ts setspecs ivars
2907 current_declspecs = TREE_VALUE (declspec_stack);
2908 prefix_attributes = TREE_PURPOSE (declspec_stack);
2909 declspec_stack = TREE_CHAIN (declspec_stack); }
2910 | declspecs_nosc_nots setspecs ivars
2912 current_declspecs = TREE_VALUE (declspec_stack);
2913 prefix_attributes = TREE_PURPOSE (declspec_stack);
2914 declspec_stack = TREE_CHAIN (declspec_stack); }
2923 | ivars ',' maybe_setattrs ivar_declarator
2929 $$ = add_instance_variable (objc_ivar_context,
2931 $1, current_declspecs,
2934 | declarator ':' expr_no_commas
2936 $$ = add_instance_variable (objc_ivar_context,
2938 $1, current_declspecs, $3);
2940 | ':' expr_no_commas
2942 $$ = add_instance_variable (objc_ivar_context,
2945 current_declspecs, $2);
2952 remember_protocol_qualifiers ();
2953 if (objc_implementation_context)
2954 objc_inherit_code = CLASS_METHOD_DECL;
2956 fatal_error ("method definition not in class context");
2960 forget_protocol_qualifiers ();
2961 add_class_method (objc_implementation_context, $3);
2962 start_method_def ($3);
2963 objc_method_context = $3;
2967 continue_method_def ();
2971 finish_method_def ();
2972 objc_method_context = NULL_TREE;
2977 remember_protocol_qualifiers ();
2978 if (objc_implementation_context)
2979 objc_inherit_code = INSTANCE_METHOD_DECL;
2981 fatal_error ("method definition not in class context");
2985 forget_protocol_qualifiers ();
2986 add_instance_method (objc_implementation_context, $3);
2987 start_method_def ($3);
2988 objc_method_context = $3;
2992 continue_method_def ();
2996 finish_method_def ();
2997 objc_method_context = NULL_TREE;
3001 /* the reason for the strange actions in this rule
3002 is so that notype_initdecls when reached via datadef
3003 can find a valid list of type and sc specs in $0. */
3007 | {$<ttype>$ = NULL_TREE; } methodprotolist2
3010 methodprotolist2: /* eliminates a shift/reduce conflict */
3013 | methodprotolist2 methodproto
3014 | methodprotolist2 {$<ttype>$ = NULL_TREE; } datadef
3025 /* Remember protocol qualifiers in prototypes. */
3026 remember_protocol_qualifiers ();
3027 objc_inherit_code = CLASS_METHOD_DECL;
3031 /* Forget protocol qualifiers here. */
3032 forget_protocol_qualifiers ();
3033 add_class_method (objc_interface_context, $3);
3039 /* Remember protocol qualifiers in prototypes. */
3040 remember_protocol_qualifiers ();
3041 objc_inherit_code = INSTANCE_METHOD_DECL;
3045 /* Forget protocol qualifiers here. */
3046 forget_protocol_qualifiers ();
3047 add_instance_method (objc_interface_context, $3);
3053 '(' typename ')' unaryselector
3055 $$ = build_method_decl (objc_inherit_code, $2, $4, NULL_TREE);
3060 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, NULL_TREE);
3063 | '(' typename ')' keywordselector optparmlist
3065 $$ = build_method_decl (objc_inherit_code, $2, $4, $5);
3068 | keywordselector optparmlist
3070 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, $2);
3074 /* "optarglist" assumes that start_method_def has already been called...
3075 if it is not, the "xdecls" will not be placed in the proper scope */
3082 /* to get around the following situation: "int foo (int a) int b; {}" that
3083 is synthesized when parsing "- a:a b:b; id c; id d; { ... }" */
3098 declspecs_ts setspecs myparms ';'
3099 { current_declspecs = TREE_VALUE (declspec_stack);
3100 prefix_attributes = TREE_PURPOSE (declspec_stack);
3101 declspec_stack = TREE_CHAIN (declspec_stack); }
3103 { shadow_tag ($1); }
3104 | declspecs_nots ';'
3105 { pedwarn ("empty declaration"); }
3110 { push_parm_decl ($1); }
3111 | myparms ',' myparm
3112 { push_parm_decl ($3); }
3115 /* A single parameter declaration or parameter type name,
3116 as found in a parmlist. DOES NOT ALLOW AN INITIALIZER OR ASMSPEC */
3119 parm_declarator maybe_attribute
3120 { $$ = build_tree_list (build_tree_list (current_declspecs,
3122 build_tree_list (prefix_attributes,
3124 | notype_declarator maybe_attribute
3125 { $$ = build_tree_list (build_tree_list (current_declspecs,
3127 build_tree_list (prefix_attributes,
3129 | absdcl_maybe_attribute
3140 /* oh what a kludge! */
3141 $$ = objc_ellipsis_node;
3149 /* returns a tree list node generated by get_parm_info */
3162 | keywordselector keyworddecl
3164 $$ = chainon ($1, $2);
3176 ENUM | STRUCT | UNION | IF | ELSE | WHILE | DO | FOR
3177 | SWITCH | CASE | DEFAULT | BREAK | CONTINUE | RETURN
3178 | GOTO | ASM_KEYWORD | SIZEOF | TYPEOF | ALIGNOF
3179 | TYPESPEC | TYPE_QUAL
3183 selector ':' '(' typename ')' identifier
3185 $$ = build_keyword_decl ($1, $4, $6);
3188 | selector ':' identifier
3190 $$ = build_keyword_decl ($1, NULL_TREE, $3);
3193 | ':' '(' typename ')' identifier
3195 $$ = build_keyword_decl (NULL_TREE, $3, $5);
3200 $$ = build_keyword_decl (NULL_TREE, NULL_TREE, $2);
3211 | keywordarglist keywordarg
3213 $$ = chainon ($1, $2);
3221 if (TREE_CHAIN ($1) == NULL_TREE)
3222 /* just return the expr., remove a level of indirection */
3223 $$ = TREE_VALUE ($1);
3225 /* we have a comma expr., we will collapse later */
3231 selector ':' keywordexpr
3233 $$ = build_tree_list ($1, $3);
3237 $$ = build_tree_list (NULL_TREE, $2);
3245 $$ = get_class_reference ($1);
3251 { objc_receiver_context = 1; }
3253 { objc_receiver_context = 0; }
3256 $$ = build_tree_list ($3, $5);
3267 | keywordnamelist keywordname
3269 $$ = chainon ($1, $2);
3276 $$ = build_tree_list ($1, NULL_TREE);
3280 $$ = build_tree_list (NULL_TREE, NULL_TREE);
3285 SELECTOR '(' selectorarg ')'
3292 PROTOCOL '(' identifier ')'
3298 /* extension to support C-structures in the archiver */
3301 ENCODE '(' typename ')'
3303 $$ = groktypename ($3);
3310 /* yylex() is a thin wrapper around c_lex(), all it does is translate
3311 cpplib.h's token codes into yacc's token codes. */
3313 static enum cpp_ttype last_token;
3315 /* The reserved keyword table. */
3319 ENUM_BITFIELD(rid) rid : 16;
3320 unsigned int disable : 16;
3323 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
3325 #define D_TRAD 0x01 /* not in traditional C */
3326 #define D_C89 0x02 /* not in C89 */
3327 #define D_EXT 0x04 /* GCC extension */
3328 #define D_EXT89 0x08 /* GCC extension incorporated in C99 */
3329 #define D_OBJC 0x10 /* Objective C only */
3331 static const struct resword reswords[] =
3333 { "_Bool", RID_BOOL, 0 },
3334 { "_Complex", RID_COMPLEX, 0 },
3335 { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
3336 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
3337 { "__alignof", RID_ALIGNOF, 0 },
3338 { "__alignof__", RID_ALIGNOF, 0 },
3339 { "__asm", RID_ASM, 0 },
3340 { "__asm__", RID_ASM, 0 },
3341 { "__attribute", RID_ATTRIBUTE, 0 },
3342 { "__attribute__", RID_ATTRIBUTE, 0 },
3343 { "__bounded", RID_BOUNDED, 0 },
3344 { "__bounded__", RID_BOUNDED, 0 },
3345 { "__builtin_va_arg", RID_VA_ARG, 0 },
3346 { "__complex", RID_COMPLEX, 0 },
3347 { "__complex__", RID_COMPLEX, 0 },
3348 { "__const", RID_CONST, 0 },
3349 { "__const__", RID_CONST, 0 },
3350 { "__extension__", RID_EXTENSION, 0 },
3351 { "__func__", RID_C99_FUNCTION_NAME, 0 },
3352 { "__imag", RID_IMAGPART, 0 },
3353 { "__imag__", RID_IMAGPART, 0 },
3354 { "__inline", RID_INLINE, 0 },
3355 { "__inline__", RID_INLINE, 0 },
3356 { "__label__", RID_LABEL, 0 },
3357 { "__ptrbase", RID_PTRBASE, 0 },
3358 { "__ptrbase__", RID_PTRBASE, 0 },
3359 { "__ptrextent", RID_PTREXTENT, 0 },
3360 { "__ptrextent__", RID_PTREXTENT, 0 },
3361 { "__ptrvalue", RID_PTRVALUE, 0 },
3362 { "__ptrvalue__", RID_PTRVALUE, 0 },
3363 { "__real", RID_REALPART, 0 },
3364 { "__real__", RID_REALPART, 0 },
3365 { "__restrict", RID_RESTRICT, 0 },
3366 { "__restrict__", RID_RESTRICT, 0 },
3367 { "__signed", RID_SIGNED, 0 },
3368 { "__signed__", RID_SIGNED, 0 },
3369 { "__typeof", RID_TYPEOF, 0 },
3370 { "__typeof__", RID_TYPEOF, 0 },
3371 { "__unbounded", RID_UNBOUNDED, 0 },
3372 { "__unbounded__", RID_UNBOUNDED, 0 },
3373 { "__volatile", RID_VOLATILE, 0 },
3374 { "__volatile__", RID_VOLATILE, 0 },
3375 { "asm", RID_ASM, D_EXT },
3376 { "auto", RID_AUTO, 0 },
3377 { "break", RID_BREAK, 0 },
3378 { "case", RID_CASE, 0 },
3379 { "char", RID_CHAR, 0 },
3380 { "const", RID_CONST, D_TRAD },
3381 { "continue", RID_CONTINUE, 0 },
3382 { "default", RID_DEFAULT, 0 },
3383 { "do", RID_DO, 0 },
3384 { "double", RID_DOUBLE, 0 },
3385 { "else", RID_ELSE, 0 },
3386 { "enum", RID_ENUM, 0 },
3387 { "extern", RID_EXTERN, 0 },
3388 { "float", RID_FLOAT, 0 },
3389 { "for", RID_FOR, 0 },
3390 { "goto", RID_GOTO, 0 },
3391 { "if", RID_IF, 0 },
3392 { "inline", RID_INLINE, D_TRAD|D_EXT89 },
3393 { "int", RID_INT, 0 },
3394 { "long", RID_LONG, 0 },
3395 { "register", RID_REGISTER, 0 },
3396 { "restrict", RID_RESTRICT, D_TRAD|D_C89 },
3397 { "return", RID_RETURN, 0 },
3398 { "short", RID_SHORT, 0 },
3399 { "signed", RID_SIGNED, D_TRAD },
3400 { "sizeof", RID_SIZEOF, 0 },
3401 { "static", RID_STATIC, 0 },
3402 { "struct", RID_STRUCT, 0 },
3403 { "switch", RID_SWITCH, 0 },
3404 { "typedef", RID_TYPEDEF, 0 },
3405 { "typeof", RID_TYPEOF, D_TRAD|D_EXT },
3406 { "union", RID_UNION, 0 },
3407 { "unsigned", RID_UNSIGNED, 0 },
3408 { "void", RID_VOID, 0 },
3409 { "volatile", RID_VOLATILE, D_TRAD },
3410 { "while", RID_WHILE, 0 },
3412 { "@class", RID_AT_CLASS, D_OBJC },
3413 { "@compatibility_alias", RID_AT_ALIAS, D_OBJC },
3414 { "@defs", RID_AT_DEFS, D_OBJC },
3415 { "@encode", RID_AT_ENCODE, D_OBJC },
3416 { "@end", RID_AT_END, D_OBJC },
3417 { "@implementation", RID_AT_IMPLEMENTATION, D_OBJC },
3418 { "@interface", RID_AT_INTERFACE, D_OBJC },
3419 { "@private", RID_AT_PRIVATE, D_OBJC },
3420 { "@protected", RID_AT_PROTECTED, D_OBJC },
3421 { "@protocol", RID_AT_PROTOCOL, D_OBJC },
3422 { "@public", RID_AT_PUBLIC, D_OBJC },
3423 { "@selector", RID_AT_SELECTOR, D_OBJC },
3424 { "id", RID_ID, D_OBJC },
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
3574 /* Lookup table for ObjC keywords beginning with '@'. Crude but
3575 hopefully effective. */
3576 #define N_at_reswords ((int) RID_AT_IMPLEMENTATION - (int)RID_AT_ENCODE + 1)
3577 static tree objc_rid_sans_at[N_at_reswords];
3585 int mask = (flag_isoc99 ? 0 : D_C89)
3586 | (flag_traditional ? D_TRAD : 0)
3587 | (flag_no_asm ? (flag_isoc99 ? D_EXT : D_EXT|D_EXT89) : 0);
3589 if (c_language != clk_objective_c)
3592 /* It is not necessary to register ridpointers as a GC root, because
3593 all the trees it points to are permanently interned in the
3594 get_identifier hash anyway. */
3595 ridpointers = (tree *) xcalloc ((int) RID_MAX, sizeof (tree));
3596 for (i = 0; i < N_reswords; i++)
3598 /* If a keyword is disabled, do not enter it into the table
3599 and so create a canonical spelling that isn't a keyword. */
3600 if (reswords[i].disable & mask)
3603 id = get_identifier (reswords[i].word);
3604 C_RID_CODE (id) = reswords[i].rid;
3605 C_IS_RESERVED_WORD (id) = 1;
3606 ridpointers [(int) reswords[i].rid] = id;
3609 /* Enter ObjC @-prefixed keywords into the "sans" table
3610 _without_ their leading at-sign. Again, all these
3611 identifiers are reachable by the get_identifer table, so it's
3612 not necessary to make objc_rid_sans_at a GC root. */
3613 if (reswords[i].word[0] == '@')
3614 objc_rid_sans_at[(int) reswords[i].rid - (int) RID_AT_ENCODE]
3615 = get_identifier (reswords[i].word + 1);
3619 save_and_forget_protocol_qualifiers ();
3624 init_parse (filename)
3625 const char *filename;
3627 add_c_tree_codes ();
3629 /* Make identifier nodes long enough for the language-specific slots. */
3630 set_identifier_size (sizeof (struct lang_identifier));
3635 return init_c_lex (filename);
3641 cpp_finish (parse_in);
3642 /* Call to cpp_destroy () omitted for performance reasons. */
3643 errorcount += cpp_errors (parse_in);
3646 #define NAME(type) cpp_type2name (type)
3652 const char *string = _(msgid);
3654 if (last_token == CPP_EOF)
3655 error ("%s at end of input", string);
3656 else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
3658 unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
3659 const char *ell = (last_token == CPP_CHAR) ? "" : "L";
3660 if (val <= UCHAR_MAX && ISGRAPH (val))
3661 error ("%s before %s'%c'", string, ell, val);
3663 error ("%s before %s'\\x%x'", string, ell, val);
3665 else if (last_token == CPP_STRING
3666 || last_token == CPP_WSTRING)
3667 error ("%s before string constant", string);
3668 else if (last_token == CPP_NUMBER
3669 || last_token == CPP_INT
3670 || last_token == CPP_FLOAT)
3671 error ("%s before numeric constant", string);
3672 else if (last_token == CPP_NAME)
3673 error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
3675 error ("%s before '%s' token", string, NAME(last_token));
3683 if (C_IS_RESERVED_WORD (yylval.ttype))
3685 enum rid rid_code = C_RID_CODE (yylval.ttype);
3686 int yycode = rid_to_yy[(int) rid_code];
3688 if (yycode == STRING_FUNC_NAME)
3690 /* __FUNCTION__ and __PRETTY_FUNCTION__ get converted
3691 to string constants. */
3692 const char *name = fname_string (rid_code);
3694 yylval.ttype = build_string (strlen (name) + 1, name);
3695 last_token = CPP_STRING; /* so yyerror won't choke */
3699 /* Return the canonical spelling for this keyword. */
3700 yylval.ttype = ridpointers[(int) rid_code];
3704 decl = lookup_name (yylval.ttype);
3707 if (TREE_CODE (decl) == TYPE_DECL)
3713 tree objc_interface_decl = is_class_name (yylval.ttype);
3715 if (objc_interface_decl)
3717 yylval.ttype = objc_interface_decl;
3731 last_token = c_lex (&yylval.ttype);
3737 case CPP_EQ: return '=';
3738 case CPP_NOT: return '!';
3739 case CPP_GREATER: yylval.code = GT_EXPR; return ARITHCOMPARE;
3740 case CPP_LESS: yylval.code = LT_EXPR; return ARITHCOMPARE;
3741 case CPP_PLUS: yylval.code = PLUS_EXPR; return '+';
3742 case CPP_MINUS: yylval.code = MINUS_EXPR; return '-';
3743 case CPP_MULT: yylval.code = MULT_EXPR; return '*';
3744 case CPP_DIV: yylval.code = TRUNC_DIV_EXPR; return '/';
3745 case CPP_MOD: yylval.code = TRUNC_MOD_EXPR; return '%';
3746 case CPP_AND: yylval.code = BIT_AND_EXPR; return '&';
3747 case CPP_OR: yylval.code = BIT_IOR_EXPR; return '|';
3748 case CPP_XOR: yylval.code = BIT_XOR_EXPR; return '^';
3749 case CPP_RSHIFT: yylval.code = RSHIFT_EXPR; return RSHIFT;
3750 case CPP_LSHIFT: yylval.code = LSHIFT_EXPR; return LSHIFT;
3752 case CPP_COMPL: return '~';
3753 case CPP_AND_AND: return ANDAND;
3754 case CPP_OR_OR: return OROR;
3755 case CPP_QUERY: return '?';
3756 case CPP_COLON: return ':';
3757 case CPP_COMMA: return ',';
3758 case CPP_OPEN_PAREN: return '(';
3759 case CPP_CLOSE_PAREN: return ')';
3760 case CPP_EQ_EQ: yylval.code = EQ_EXPR; return EQCOMPARE;
3761 case CPP_NOT_EQ: yylval.code = NE_EXPR; return EQCOMPARE;
3762 case CPP_GREATER_EQ:yylval.code = GE_EXPR; return ARITHCOMPARE;
3763 case CPP_LESS_EQ: yylval.code = LE_EXPR; return ARITHCOMPARE;
3765 case CPP_PLUS_EQ: yylval.code = PLUS_EXPR; return ASSIGN;
3766 case CPP_MINUS_EQ: yylval.code = MINUS_EXPR; return ASSIGN;
3767 case CPP_MULT_EQ: yylval.code = MULT_EXPR; return ASSIGN;
3768 case CPP_DIV_EQ: yylval.code = TRUNC_DIV_EXPR; return ASSIGN;
3769 case CPP_MOD_EQ: yylval.code = TRUNC_MOD_EXPR; return ASSIGN;
3770 case CPP_AND_EQ: yylval.code = BIT_AND_EXPR; return ASSIGN;
3771 case CPP_OR_EQ: yylval.code = BIT_IOR_EXPR; return ASSIGN;
3772 case CPP_XOR_EQ: yylval.code = BIT_XOR_EXPR; return ASSIGN;
3773 case CPP_RSHIFT_EQ: yylval.code = RSHIFT_EXPR; return ASSIGN;
3774 case CPP_LSHIFT_EQ: yylval.code = LSHIFT_EXPR; return ASSIGN;
3776 case CPP_OPEN_SQUARE: return '[';
3777 case CPP_CLOSE_SQUARE: return ']';
3778 case CPP_OPEN_BRACE: return '{';
3779 case CPP_CLOSE_BRACE: return '}';
3780 case CPP_SEMICOLON: return ';';
3781 case CPP_ELLIPSIS: return ELLIPSIS;
3783 case CPP_PLUS_PLUS: return PLUSPLUS;
3784 case CPP_MINUS_MINUS: return MINUSMINUS;
3785 case CPP_DEREF: return POINTSAT;
3786 case CPP_DOT: return '.';
3789 if (cpp_pop_buffer (parse_in) == 0)
3794 return yylexname ();
3807 /* This token is Objective-C specific. It gives the next
3808 token special significance. */
3811 last_token = c_lex (&yylval.ttype);
3812 if (last_token == CPP_STRING)
3814 else if (last_token == CPP_NAME)
3817 for (i = 0; i < N_at_reswords; i++)
3818 if (objc_rid_sans_at[i] == yylval.ttype)
3820 int rid_code = i + (int) RID_AT_ENCODE;
3821 yylval.ttype = ridpointers[rid_code];
3822 return rid_to_yy[rid_code];
3825 error ("syntax error at '@' token");
3828 /* These tokens are C++ specific (and will not be generated
3829 in C mode, but let's be cautious). */
3831 case CPP_DEREF_STAR:
3837 /* These tokens should not survive translation phase 4. */
3840 error ("syntax error at '%s' token", NAME(last_token));
3853 timevar_push (TV_LEX);
3855 timevar_pop (TV_LEX);
3859 /* Sets the value of the 'yydebug' variable to VALUE.
3860 This is a function so we don't have to have YYDEBUG defined
3861 in order to build the compiler. */
3870 warning ("YYDEBUG not defined.");
3874 /* Function used when yydebug is set, to print a token in more detail. */
3877 yyprint (file, yychar, yyl)
3884 fprintf (file, " [%s]", NAME(last_token));
3894 if (IDENTIFIER_POINTER (t))
3895 fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
3899 fprintf (file, " %s", GET_MODE_NAME (TYPE_MODE (TREE_TYPE (t))));
3900 if (TREE_CODE (t) == INTEGER_CST)
3902 #if HOST_BITS_PER_WIDE_INT == 64
3903 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
3906 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
3913 #if HOST_BITS_PER_WIDE_INT != HOST_BITS_PER_INT
3919 TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
3924 /* This is not the ideal place to put these, but we have to get them out
3925 of c-lex.c because cp/lex.c has its own versions. */
3927 /* Return something to represent absolute declarators containing a *.
3928 TARGET is the absolute declarator that the * contains.
3929 TYPE_QUALS is a list of modifiers such as const or volatile
3930 to apply to the pointer type, represented as identifiers.
3932 We return an INDIRECT_REF whose "contents" are TARGET
3933 and whose type is the modifier list. */
3936 make_pointer_declarator (type_quals, target)
3937 tree type_quals, target;
3939 return build1 (INDIRECT_REF, type_quals, target);