1 /* YACC parser for C syntax and for Objective C. -*-c-*-
2 Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996,
3 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 /* This file defines the grammar of C and that of Objective C.
23 ifobjc ... end ifobjc conditionals contain code for Objective C only.
24 ifc ... end ifc conditionals contain code for C only.
25 Sed commands in Makefile.in are used to convert this file into
26 c-parse.y and into objc-parse.y. */
28 /* To whomever it may concern: I have heard that such a thing was once
29 written by AT&T, but I have never seen it. */
32 %expect 31 /* shift/reduce conflicts, and 1 reduce/reduce conflict. */
35 %expect 10 /* shift/reduce conflicts, and no reduce/reduce conflicts. */
54 #ifdef MULTIBYTE_CHARS
62 /* Like YYERROR but do call yyerror. */
63 #define YYERROR1 { yyerror ("syntax error"); YYERROR; }
65 /* Cause the "yydebug" variable to be defined. */
68 /* Rename the "yyparse" function so that we can override it elsewhere. */
69 #define yyparse yyparse_1
74 %union {long itype; tree ttype; enum tree_code code;
75 const char *filename; int lineno; }
77 /* All identifiers that are not reserved words
78 and are not declared typedefs in the current block */
81 /* All identifiers that are declared typedefs in the current block.
82 In some contexts, they are treated just like IDENTIFIER,
83 but they can also serve as typespecs in declarations. */
86 /* Reserved words that specify storage class.
87 yylval contains an IDENTIFIER_NODE which indicates which one. */
90 /* Reserved words that specify type.
91 yylval contains an IDENTIFIER_NODE which indicates which one. */
94 /* Reserved words that qualify type: "const", "volatile", or "restrict".
95 yylval contains an IDENTIFIER_NODE which indicates which one. */
98 /* Character or numeric constants.
99 yylval is the node for the constant. */
102 /* String constants in raw form.
103 yylval is a STRING_CST node. */
106 /* "...", used for functions with variable arglists. */
109 /* the reserved words */
110 /* SCO include files test "ASM", so use something else. */
111 %token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
112 %token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
113 %token ATTRIBUTE EXTENSION LABEL
114 %token REALPART IMAGPART VA_ARG CHOOSE_EXPR TYPES_COMPATIBLE_P
115 %token PTR_VALUE PTR_BASE PTR_EXTENT
117 /* function name can be a string const or a var decl. */
118 %token STRING_FUNC_NAME VAR_FUNC_NAME
120 /* Add precedence rules to solve dangling else s/r conflict */
124 /* Define the operator tokens and their precedences.
125 The value is an integer because, if used, it is the tree code
126 to use in the expression made from the operator. */
128 %right <code> ASSIGN '='
129 %right <code> '?' ':'
135 %left <code> EQCOMPARE
136 %left <code> ARITHCOMPARE
137 %left <code> LSHIFT RSHIFT
139 %left <code> '*' '/' '%'
140 %right <code> UNARY PLUSPLUS MINUSMINUS
142 %left <code> POINTSAT '.' '(' '['
144 /* The Objective-C keywords. These are included in C and in
145 Objective C, so that the token codes are the same in both. */
146 %token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
147 %token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
150 %type <ttype> ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
151 %type <ttype> BREAK CONTINUE RETURN GOTO ASM_KEYWORD SIZEOF TYPEOF ALIGNOF
153 %type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
154 %type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
155 %type <ttype> declspecs_nosc_nots_nosa_noea declspecs_nosc_nots_nosa_ea
156 %type <ttype> declspecs_nosc_nots_sa_noea declspecs_nosc_nots_sa_ea
157 %type <ttype> declspecs_nosc_ts_nosa_noea declspecs_nosc_ts_nosa_ea
158 %type <ttype> declspecs_nosc_ts_sa_noea declspecs_nosc_ts_sa_ea
159 %type <ttype> declspecs_sc_nots_nosa_noea declspecs_sc_nots_nosa_ea
160 %type <ttype> declspecs_sc_nots_sa_noea declspecs_sc_nots_sa_ea
161 %type <ttype> declspecs_sc_ts_nosa_noea declspecs_sc_ts_nosa_ea
162 %type <ttype> declspecs_sc_ts_sa_noea declspecs_sc_ts_sa_ea
163 %type <ttype> declspecs_ts declspecs_nots
164 %type <ttype> declspecs_ts_nosa declspecs_nots_nosa
165 %type <ttype> declspecs_nosc_ts declspecs_nosc_nots declspecs_nosc declspecs
166 %type <ttype> maybe_type_quals_attrs typespec_nonattr typespec_attr
167 %type <ttype> typespec_reserved_nonattr typespec_reserved_attr
168 %type <ttype> typespec_nonreserved_nonattr
170 %type <ttype> SCSPEC TYPESPEC TYPE_QUAL maybe_type_qual
171 %type <ttype> initdecls notype_initdecls initdcl notype_initdcl
172 %type <ttype> init maybeasm
173 %type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
174 %type <ttype> maybe_attribute attributes attribute attribute_list attrib
175 %type <ttype> any_word extension
177 %type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
178 %type <ttype> do_stmt_start poplevel stmt label
180 %type <ttype> c99_block_start c99_block_end
181 %type <ttype> declarator
182 %type <ttype> notype_declarator after_type_declarator
183 %type <ttype> parm_declarator
184 %type <ttype> parm_declarator_starttypename parm_declarator_nostarttypename
185 %type <ttype> array_declarator
187 %type <ttype> structsp_attr structsp_nonattr
188 %type <ttype> component_decl_list component_decl_list2
189 %type <ttype> component_decl components components_notype component_declarator
190 %type <ttype> component_notype_declarator
191 %type <ttype> enumlist enumerator
192 %type <ttype> struct_head union_head enum_head
193 %type <ttype> typename absdcl absdcl1 absdcl1_ea absdcl1_noea
194 %type <ttype> direct_absdcl1 absdcl_maybe_attribute
195 %type <ttype> xexpr parms parm firstparm identifiers
197 %type <ttype> parmlist parmlist_1 parmlist_2
198 %type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
199 %type <ttype> identifiers_or_typenames
201 %type <itype> setspecs setspecs_fp
203 %type <filename> save_filename
204 %type <lineno> save_lineno
207 /* the Objective-C nonterminals */
209 %type <ttype> ivar_decl_list ivar_decls ivar_decl ivars ivar_declarator
210 %type <ttype> methoddecl unaryselector keywordselector selector
211 %type <ttype> keyworddecl receiver objcmessageexpr messageargs
212 %type <ttype> keywordexpr keywordarglist keywordarg
213 %type <ttype> myparms myparm optparmlist reservedwords objcselectorexpr
214 %type <ttype> selectorarg keywordnamelist keywordname objcencodeexpr
215 %type <ttype> objc_string non_empty_protocolrefs protocolrefs identifier_list objcprotocolexpr
217 %type <ttype> CLASSNAME OBJECTNAME
221 /* Number of statements (loosely speaking) and compound statements
223 static int stmt_count;
224 static int compstmt_count;
226 /* Input file and line number of the end of the body of last simple_if;
227 used by the stmt-rule immediately after simple_if returns. */
228 static const char *if_stmt_file;
229 static int if_stmt_line;
231 /* List of types and structure classes of the current declaration. */
232 static tree current_declspecs = NULL_TREE;
233 static tree prefix_attributes = NULL_TREE;
235 /* List of all the attributes applying to the identifier currently being
236 declared; includes prefix_attributes and possibly some more attributes
237 just after a comma. */
238 static tree all_prefix_attributes = NULL_TREE;
240 /* Stack of saved values of current_declspecs, prefix_attributes and
241 all_prefix_attributes. */
242 static tree declspec_stack;
244 /* PUSH_DECLSPEC_STACK is called from setspecs; POP_DECLSPEC_STACK
245 should be called from the productions making use of setspecs. */
246 #define PUSH_DECLSPEC_STACK \
248 declspec_stack = tree_cons (build_tree_list (prefix_attributes, \
249 all_prefix_attributes), \
254 #define POP_DECLSPEC_STACK \
256 current_declspecs = TREE_VALUE (declspec_stack); \
257 prefix_attributes = TREE_PURPOSE (TREE_PURPOSE (declspec_stack)); \
258 all_prefix_attributes = TREE_VALUE (TREE_PURPOSE (declspec_stack)); \
259 declspec_stack = TREE_CHAIN (declspec_stack); \
262 /* For __extension__, save/restore the warning flags which are
263 controlled by __extension__. */
264 #define SAVE_WARN_FLAGS() \
265 size_int (pedantic | (warn_pointer_arith << 1))
266 #define RESTORE_WARN_FLAGS(tval) \
268 int val = tree_low_cst (tval, 0); \
269 pedantic = val & 1; \
270 warn_pointer_arith = (val >> 1) & 1; \
274 /* Objective-C specific parser/lexer information */
276 static enum tree_code objc_inherit_code;
277 static int objc_pq_context = 0, objc_public_flag = 0;
279 /* The following flag is needed to contextualize ObjC lexical analysis.
280 In some cases (e.g., 'int NSObject;'), it is undesirable to bind
281 an identifier to an ObjC class, even if a class with that name
283 static int objc_need_raw_identifier;
284 #define OBJC_NEED_RAW_IDENTIFIER(VAL) objc_need_raw_identifier = VAL
288 #define OBJC_NEED_RAW_IDENTIFIER(VAL) /* nothing */
291 /* Tell yyparse how to print a token's value, if yydebug is set. */
293 #define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
295 static void yyprint PARAMS ((FILE *, int, YYSTYPE));
296 static void yyerror PARAMS ((const char *));
297 static int yylexname PARAMS ((void));
298 static inline int _yylex PARAMS ((void));
299 static int yylex PARAMS ((void));
300 static void init_reswords PARAMS ((void));
302 /* Add GC roots for variables local to this file. */
308 ggc_add_tree_root (&declspec_stack, 1);
309 ggc_add_tree_root (¤t_declspecs, 1);
310 ggc_add_tree_root (&prefix_attributes, 1);
311 ggc_add_tree_root (&all_prefix_attributes, 1);
319 pedwarn ("ISO C forbids an empty source file");
324 /* In case there were missing closebraces,
325 get us back to the global binding level. */
326 while (! global_bindings_p ())
329 finish_fname_decls ();
335 /* the reason for the strange actions in this rule
336 is so that notype_initdecls when reached via datadef
337 can find a valid list of type and sc specs in $0. */
340 {$<ttype>$ = NULL_TREE; } extdef
341 | extdefs {$<ttype>$ = NULL_TREE; ggc_collect(); } extdef
350 | ASM_KEYWORD '(' expr ')' ';'
352 if ((TREE_CODE ($3) == ADDR_EXPR
353 && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
354 || TREE_CODE ($3) == STRING_CST)
357 error ("argument of `asm' is not a constant string"); }
359 { RESTORE_WARN_FLAGS ($1); }
363 setspecs notype_initdecls ';'
365 error ("ISO C forbids data definition with no type or storage class");
366 else if (!flag_traditional)
367 warning ("data definition has no type or storage class");
369 POP_DECLSPEC_STACK; }
370 | declspecs_nots setspecs notype_initdecls ';'
371 { POP_DECLSPEC_STACK; }
372 | declspecs_ts setspecs initdecls ';'
373 { POP_DECLSPEC_STACK; }
380 pedwarn ("ISO C does not allow extra `;' outside of a function"); }
384 declspecs_ts setspecs declarator
385 { if (! start_function (current_declspecs, $3,
386 all_prefix_attributes))
390 { store_parm_decls (); }
391 save_filename save_lineno compstmt_or_error
392 { DECL_SOURCE_FILE (current_function_decl) = $7;
393 DECL_SOURCE_LINE (current_function_decl) = $8;
395 POP_DECLSPEC_STACK; }
396 | declspecs_ts setspecs declarator error
397 { POP_DECLSPEC_STACK; }
398 | declspecs_nots setspecs notype_declarator
399 { if (! start_function (current_declspecs, $3,
400 all_prefix_attributes))
404 { store_parm_decls (); }
405 save_filename save_lineno compstmt_or_error
406 { DECL_SOURCE_FILE (current_function_decl) = $7;
407 DECL_SOURCE_LINE (current_function_decl) = $8;
409 POP_DECLSPEC_STACK; }
410 | declspecs_nots setspecs notype_declarator error
411 { POP_DECLSPEC_STACK; }
412 | setspecs notype_declarator
413 { if (! start_function (NULL_TREE, $2,
414 all_prefix_attributes))
418 { store_parm_decls (); }
419 save_filename save_lineno compstmt_or_error
420 { DECL_SOURCE_FILE (current_function_decl) = $6;
421 DECL_SOURCE_LINE (current_function_decl) = $7;
423 POP_DECLSPEC_STACK; }
424 | setspecs notype_declarator error
425 { POP_DECLSPEC_STACK; }
440 { $$ = NEGATE_EXPR; }
444 if (warn_traditional && !in_system_header)
445 warning ("traditional C rejects the unary plus operator");
449 { $$ = PREINCREMENT_EXPR; }
451 { $$ = PREDECREMENT_EXPR; }
453 { $$ = BIT_NOT_EXPR; }
455 { $$ = TRUTH_NOT_EXPR; }
458 expr: nonnull_exprlist
459 { $$ = build_compound_expr ($1); }
470 { $$ = build_tree_list (NULL_TREE, $1); }
471 | nonnull_exprlist ',' expr_no_commas
472 { chainon ($1, build_tree_list (NULL_TREE, $3)); }
477 | '*' cast_expr %prec UNARY
478 { $$ = build_indirect_ref ($2, "unary *"); }
479 /* __extension__ turns off -pedantic for following primary. */
480 | extension cast_expr %prec UNARY
482 RESTORE_WARN_FLAGS ($1); }
483 | unop cast_expr %prec UNARY
484 { $$ = build_unary_op ($1, $2, 0);
485 overflow_warning ($$); }
486 /* Refer to the address of a label as a pointer. */
488 { $$ = finish_label_address_expr ($2); }
489 /* This seems to be impossible on some machines, so let's turn it off.
490 You can use __builtin_next_arg to find the anonymous stack args.
492 { tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
493 $$ = error_mark_node;
494 if (TREE_VALUE (tree_last (types)) == void_type_node)
495 error ("`&...' used in function with fixed number of arguments");
499 pedwarn ("ISO C forbids `&...'");
500 $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
501 $$ = build_unary_op (ADDR_EXPR, $$, 0);
504 | sizeof unary_expr %prec UNARY
506 if (TREE_CODE ($2) == COMPONENT_REF
507 && DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
508 error ("`sizeof' applied to a bit-field");
509 $$ = c_sizeof (TREE_TYPE ($2)); }
510 | sizeof '(' typename ')' %prec HYPERUNARY
512 $$ = c_sizeof (groktypename ($3)); }
513 | alignof unary_expr %prec UNARY
515 $$ = c_alignof_expr ($2); }
516 | alignof '(' typename ')' %prec HYPERUNARY
518 $$ = c_alignof (groktypename ($3)); }
519 | REALPART cast_expr %prec UNARY
520 { $$ = build_unary_op (REALPART_EXPR, $2, 0); }
521 | IMAGPART cast_expr %prec UNARY
522 { $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
526 SIZEOF { skip_evaluation++; }
530 ALIGNOF { skip_evaluation++; }
535 | '(' typename ')' cast_expr %prec UNARY
536 { $$ = c_cast_expr ($2, $4); }
541 | expr_no_commas '+' expr_no_commas
542 { $$ = parser_build_binary_op ($2, $1, $3); }
543 | expr_no_commas '-' expr_no_commas
544 { $$ = parser_build_binary_op ($2, $1, $3); }
545 | expr_no_commas '*' expr_no_commas
546 { $$ = parser_build_binary_op ($2, $1, $3); }
547 | expr_no_commas '/' expr_no_commas
548 { $$ = parser_build_binary_op ($2, $1, $3); }
549 | expr_no_commas '%' expr_no_commas
550 { $$ = parser_build_binary_op ($2, $1, $3); }
551 | expr_no_commas LSHIFT expr_no_commas
552 { $$ = parser_build_binary_op ($2, $1, $3); }
553 | expr_no_commas RSHIFT expr_no_commas
554 { $$ = parser_build_binary_op ($2, $1, $3); }
555 | expr_no_commas ARITHCOMPARE expr_no_commas
556 { $$ = parser_build_binary_op ($2, $1, $3); }
557 | expr_no_commas EQCOMPARE expr_no_commas
558 { $$ = parser_build_binary_op ($2, $1, $3); }
559 | expr_no_commas '&' expr_no_commas
560 { $$ = parser_build_binary_op ($2, $1, $3); }
561 | expr_no_commas '|' expr_no_commas
562 { $$ = parser_build_binary_op ($2, $1, $3); }
563 | expr_no_commas '^' expr_no_commas
564 { $$ = parser_build_binary_op ($2, $1, $3); }
565 | expr_no_commas ANDAND
566 { $1 = truthvalue_conversion (default_conversion ($1));
567 skip_evaluation += $1 == boolean_false_node; }
569 { skip_evaluation -= $1 == boolean_false_node;
570 $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
571 | expr_no_commas OROR
572 { $1 = truthvalue_conversion (default_conversion ($1));
573 skip_evaluation += $1 == boolean_true_node; }
575 { skip_evaluation -= $1 == boolean_true_node;
576 $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
578 { $1 = truthvalue_conversion (default_conversion ($1));
579 skip_evaluation += $1 == boolean_false_node; }
581 { skip_evaluation += (($1 == boolean_true_node)
582 - ($1 == boolean_false_node)); }
584 { skip_evaluation -= $1 == boolean_true_node;
585 $$ = build_conditional_expr ($1, $4, $7); }
588 pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
589 /* Make sure first operand is calculated only once. */
590 $<ttype>2 = save_expr ($1);
591 $1 = truthvalue_conversion (default_conversion ($<ttype>2));
592 skip_evaluation += $1 == boolean_true_node; }
594 { skip_evaluation -= $1 == boolean_true_node;
595 $$ = build_conditional_expr ($1, $<ttype>2, $5); }
596 | expr_no_commas '=' expr_no_commas
598 $$ = build_modify_expr ($1, NOP_EXPR, $3);
599 class = TREE_CODE_CLASS (TREE_CODE ($$));
600 if (IS_EXPR_CODE_CLASS (class))
601 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
603 | expr_no_commas ASSIGN expr_no_commas
605 $$ = build_modify_expr ($1, $2, $3);
606 /* This inhibits warnings in truthvalue_conversion. */
607 class = TREE_CODE_CLASS (TREE_CODE ($$));
608 if (IS_EXPR_CODE_CLASS (class))
609 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
616 if (yychar == YYEMPTY)
618 $$ = build_external_ref ($1, yychar == '(');
622 { $$ = combine_strings ($1); }
624 { $$ = fname_decl (C_RID_CODE ($$), $$); }
625 | '(' typename ')' '{'
626 { start_init (NULL_TREE, NULL, 0);
627 $2 = groktypename ($2);
628 really_start_incremental_init ($2); }
629 initlist_maybe_comma '}' %prec UNARY
630 { tree constructor = pop_init_level (0);
634 if (pedantic && ! flag_isoc99)
635 pedwarn ("ISO C89 forbids compound literals");
636 $$ = build_compound_literal (type, constructor);
639 { char class = TREE_CODE_CLASS (TREE_CODE ($2));
640 if (IS_EXPR_CODE_CLASS (class))
641 C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
644 { $$ = error_mark_node; }
645 | compstmt_primary_start compstmt_nostart ')'
646 { tree saved_last_tree;
649 pedwarn ("ISO C forbids braced-groups within expressions");
652 saved_last_tree = COMPOUND_BODY ($1);
653 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
654 last_tree = saved_last_tree;
655 TREE_CHAIN (last_tree) = NULL_TREE;
657 last_expr_type = void_type_node;
658 $$ = build1 (STMT_EXPR, last_expr_type, $1);
659 TREE_SIDE_EFFECTS ($$) = 1;
661 | compstmt_primary_start error ')'
664 last_tree = COMPOUND_BODY ($1);
665 TREE_CHAIN (last_tree) = NULL_TREE;
666 $$ = error_mark_node;
668 | primary '(' exprlist ')' %prec '.'
669 { $$ = build_function_call ($1, $3); }
670 | VA_ARG '(' expr_no_commas ',' typename ')'
671 { $$ = build_va_arg ($3, groktypename ($5)); }
673 | CHOOSE_EXPR '(' expr_no_commas ',' expr_no_commas ',' expr_no_commas ')'
679 if (TREE_CODE (c) != INTEGER_CST)
680 error ("first argument to __builtin_choose_expr not a constant");
681 $$ = integer_zerop (c) ? $7 : $5;
683 | TYPES_COMPATIBLE_P '(' typename ',' typename ')'
687 e1 = TYPE_MAIN_VARIANT (groktypename ($3));
688 e2 = TYPE_MAIN_VARIANT (groktypename ($5));
690 $$ = comptypes (e1, e2)
691 ? build_int_2 (1, 0) : build_int_2 (0, 0);
693 | primary '[' expr ']' %prec '.'
694 { $$ = build_array_ref ($1, $3); }
695 | primary '.' identifier
698 if (!is_public ($1, $3))
699 $$ = error_mark_node;
702 $$ = build_component_ref ($1, $3);
704 | primary POINTSAT identifier
706 tree expr = build_indirect_ref ($1, "->");
709 if (!is_public (expr, $3))
710 $$ = error_mark_node;
713 $$ = build_component_ref (expr, $3);
716 { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
718 { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
721 { $$ = build_message_expr ($1); }
723 { $$ = build_selector_expr ($1); }
725 { $$ = build_protocol_expr ($1); }
727 { $$ = build_encode_expr ($1); }
729 { $$ = build_objc_string_object ($1); }
733 /* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
739 static int last_lineno = 0;
740 static const char *last_input_filename = 0;
742 $$ = chainon ($1, $2);
744 if (warn_traditional && !in_system_header
745 && (lineno != last_lineno || !last_input_filename ||
746 strcmp (last_input_filename, input_filename)))
748 warning ("traditional C rejects string concatenation");
749 last_lineno = lineno;
750 last_input_filename = input_filename;
757 /* Produces an STRING_CST with perhaps more STRING_CSTs chained
758 onto it, which is to be read as an ObjC string object. */
762 | objc_string '@' STRING
763 { $$ = chainon ($1, $3); }
767 old_style_parm_decls:
771 /* ... is used here to indicate a varargs function. */
774 pedwarn ("ISO C does not permit use of `varargs.h'"); }
777 /* The following are analogous to lineno_decl, decls and decl
778 except that they do not allow nested functions.
779 They are used for old-style parm decls. */
781 save_filename save_lineno datadecl
788 | datadecls lineno_datadecl
789 | lineno_datadecl errstmt
792 /* We don't allow prefix attributes here because they cause reduce/reduce
793 conflicts: we can't know whether we're parsing a function decl with
794 attribute suffix, or function defn with attribute prefix on first old
797 declspecs_ts_nosa setspecs initdecls ';'
798 { POP_DECLSPEC_STACK; }
799 | declspecs_nots_nosa setspecs notype_initdecls ';'
800 { POP_DECLSPEC_STACK; }
801 | declspecs_ts_nosa ';'
802 { shadow_tag_warned ($1, 1);
803 pedwarn ("empty declaration"); }
804 | declspecs_nots_nosa ';'
805 { pedwarn ("empty declaration"); }
808 /* This combination which saves a lineno before a decl
809 is the normal thing to use, rather than decl itself.
810 This is to avoid shift/reduce conflicts in contexts
811 where statement labels are allowed. */
813 save_filename save_lineno decl
817 /* records the type and storage class specs to use for processing
818 the declarators that follow.
819 Maintains a stack of outer-level values of current_declspecs,
820 for the sake of parm declarations nested in function declarators. */
821 setspecs: /* empty */
822 { pending_xref_error ();
824 split_specs_attrs ($<ttype>0,
825 ¤t_declspecs, &prefix_attributes);
826 all_prefix_attributes = prefix_attributes; }
829 /* Possibly attributes after a comma, which should reset all_prefix_attributes
830 to prefix_attributes with these ones chained on the front. */
833 { all_prefix_attributes = chainon ($1, prefix_attributes); }
837 declspecs_ts setspecs initdecls ';'
838 { POP_DECLSPEC_STACK; }
839 | declspecs_nots setspecs notype_initdecls ';'
840 { POP_DECLSPEC_STACK; }
841 | declspecs_ts setspecs nested_function
842 { POP_DECLSPEC_STACK; }
843 | declspecs_nots setspecs notype_nested_function
844 { POP_DECLSPEC_STACK; }
848 { RESTORE_WARN_FLAGS ($1); }
851 /* A list of declaration specifiers. These are:
853 - Storage class specifiers (SCSPEC), which for GCC currently include
854 function specifiers ("inline").
856 - Type specifiers (typespec_*).
858 - Type qualifiers (TYPE_QUAL).
860 - Attribute specifier lists (attributes).
862 These are stored as a TREE_LIST; the head of the list is the last
863 item in the specifier list. Each entry in the list has either a
864 TREE_PURPOSE that is an attribute specifier list, or a TREE_VALUE that
865 is a single other specifier or qualifier; and a TREE_CHAIN that is the
866 rest of the list. TREE_STATIC is set on the list if something other
867 than a storage class specifier or attribute has been seen; this is used
868 to warn for the obsolescent usage of storage class specifiers other than
869 at the start of the list. (Doing this properly would require function
870 specifiers to be handled separately from storage class specifiers.)
872 The various cases below are classified according to:
874 (a) Whether a storage class specifier is included or not; some
875 places in the grammar disallow storage class specifiers (_sc or _nosc).
877 (b) Whether a type specifier has been seen; after a type specifier,
878 a typedef name is an identifier to redeclare (_ts or _nots).
880 (c) Whether the list starts with an attribute; in certain places,
881 the grammar requires specifiers that don't start with an attribute
884 (d) Whether the list ends with an attribute (or a specifier such that
885 any following attribute would have been parsed as part of that specifier);
886 this avoids shift-reduce conflicts in the parsing of attributes
891 (i) Distinguish between function specifiers and storage class specifiers,
892 at least for the purpose of warnings about obsolescent usage.
894 (ii) Halve the number of productions here by eliminating the _sc/_nosc
895 distinction and instead checking where required that storage class
896 specifiers aren't present. */
898 /* Declspecs which contain at least one type specifier or typedef name.
899 (Just `const' or `volatile' is not enough.)
900 A typedef'd name following these is taken as a name to be declared.
901 Declspecs have a non-NULL TREE_VALUE, attributes do not. */
903 declspecs_nosc_nots_nosa_noea:
905 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
906 TREE_STATIC ($$) = 1; }
907 | declspecs_nosc_nots_nosa_noea TYPE_QUAL
908 { $$ = tree_cons (NULL_TREE, $2, $1);
909 TREE_STATIC ($$) = 1; }
910 | declspecs_nosc_nots_nosa_ea TYPE_QUAL
911 { $$ = tree_cons (NULL_TREE, $2, $1);
912 TREE_STATIC ($$) = 1; }
915 declspecs_nosc_nots_nosa_ea:
916 declspecs_nosc_nots_nosa_noea attributes
917 { $$ = tree_cons ($2, NULL_TREE, $1);
918 TREE_STATIC ($$) = TREE_STATIC ($1); }
921 declspecs_nosc_nots_sa_noea:
922 declspecs_nosc_nots_sa_noea TYPE_QUAL
923 { $$ = tree_cons (NULL_TREE, $2, $1);
924 TREE_STATIC ($$) = 1; }
925 | declspecs_nosc_nots_sa_ea TYPE_QUAL
926 { $$ = tree_cons (NULL_TREE, $2, $1);
927 TREE_STATIC ($$) = 1; }
930 declspecs_nosc_nots_sa_ea:
932 { $$ = tree_cons ($1, NULL_TREE, NULL_TREE);
933 TREE_STATIC ($$) = 0; }
934 | declspecs_nosc_nots_sa_noea attributes
935 { $$ = tree_cons ($2, NULL_TREE, $1);
936 TREE_STATIC ($$) = TREE_STATIC ($1); }
939 declspecs_nosc_ts_nosa_noea:
941 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
942 TREE_STATIC ($$) = 1; }
943 | declspecs_nosc_ts_nosa_noea TYPE_QUAL
944 { $$ = tree_cons (NULL_TREE, $2, $1);
945 TREE_STATIC ($$) = 1; }
946 | declspecs_nosc_ts_nosa_ea TYPE_QUAL
947 { $$ = tree_cons (NULL_TREE, $2, $1);
948 TREE_STATIC ($$) = 1; }
949 | declspecs_nosc_ts_nosa_noea typespec_reserved_nonattr
950 { $$ = tree_cons (NULL_TREE, $2, $1);
951 TREE_STATIC ($$) = 1; }
952 | declspecs_nosc_ts_nosa_ea typespec_reserved_nonattr
953 { $$ = tree_cons (NULL_TREE, $2, $1);
954 TREE_STATIC ($$) = 1; }
955 | declspecs_nosc_nots_nosa_noea typespec_nonattr
956 { $$ = tree_cons (NULL_TREE, $2, $1);
957 TREE_STATIC ($$) = 1; }
958 | declspecs_nosc_nots_nosa_ea typespec_nonattr
959 { $$ = tree_cons (NULL_TREE, $2, $1);
960 TREE_STATIC ($$) = 1; }
963 declspecs_nosc_ts_nosa_ea:
965 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
966 TREE_STATIC ($$) = 1; }
967 | declspecs_nosc_ts_nosa_noea attributes
968 { $$ = tree_cons ($2, NULL_TREE, $1);
969 TREE_STATIC ($$) = TREE_STATIC ($1); }
970 | declspecs_nosc_ts_nosa_noea typespec_reserved_attr
971 { $$ = tree_cons (NULL_TREE, $2, $1);
972 TREE_STATIC ($$) = 1; }
973 | declspecs_nosc_ts_nosa_ea typespec_reserved_attr
974 { $$ = tree_cons (NULL_TREE, $2, $1);
975 TREE_STATIC ($$) = 1; }
976 | declspecs_nosc_nots_nosa_noea typespec_attr
977 { $$ = tree_cons (NULL_TREE, $2, $1);
978 TREE_STATIC ($$) = 1; }
979 | declspecs_nosc_nots_nosa_ea typespec_attr
980 { $$ = tree_cons (NULL_TREE, $2, $1);
981 TREE_STATIC ($$) = 1; }
984 declspecs_nosc_ts_sa_noea:
985 declspecs_nosc_ts_sa_noea TYPE_QUAL
986 { $$ = tree_cons (NULL_TREE, $2, $1);
987 TREE_STATIC ($$) = 1; }
988 | declspecs_nosc_ts_sa_ea TYPE_QUAL
989 { $$ = tree_cons (NULL_TREE, $2, $1);
990 TREE_STATIC ($$) = 1; }
991 | declspecs_nosc_ts_sa_noea typespec_reserved_nonattr
992 { $$ = tree_cons (NULL_TREE, $2, $1);
993 TREE_STATIC ($$) = 1; }
994 | declspecs_nosc_ts_sa_ea typespec_reserved_nonattr
995 { $$ = tree_cons (NULL_TREE, $2, $1);
996 TREE_STATIC ($$) = 1; }
997 | declspecs_nosc_nots_sa_noea typespec_nonattr
998 { $$ = tree_cons (NULL_TREE, $2, $1);
999 TREE_STATIC ($$) = 1; }
1000 | declspecs_nosc_nots_sa_ea typespec_nonattr
1001 { $$ = tree_cons (NULL_TREE, $2, $1);
1002 TREE_STATIC ($$) = 1; }
1005 declspecs_nosc_ts_sa_ea:
1006 declspecs_nosc_ts_sa_noea attributes
1007 { $$ = tree_cons ($2, NULL_TREE, $1);
1008 TREE_STATIC ($$) = TREE_STATIC ($1); }
1009 | declspecs_nosc_ts_sa_noea typespec_reserved_attr
1010 { $$ = tree_cons (NULL_TREE, $2, $1);
1011 TREE_STATIC ($$) = 1; }
1012 | declspecs_nosc_ts_sa_ea typespec_reserved_attr
1013 { $$ = tree_cons (NULL_TREE, $2, $1);
1014 TREE_STATIC ($$) = 1; }
1015 | declspecs_nosc_nots_sa_noea typespec_attr
1016 { $$ = tree_cons (NULL_TREE, $2, $1);
1017 TREE_STATIC ($$) = 1; }
1018 | declspecs_nosc_nots_sa_ea typespec_attr
1019 { $$ = tree_cons (NULL_TREE, $2, $1);
1020 TREE_STATIC ($$) = 1; }
1023 declspecs_sc_nots_nosa_noea:
1025 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
1026 TREE_STATIC ($$) = 0; }
1027 | declspecs_sc_nots_nosa_noea TYPE_QUAL
1028 { $$ = tree_cons (NULL_TREE, $2, $1);
1029 TREE_STATIC ($$) = 1; }
1030 | declspecs_sc_nots_nosa_ea TYPE_QUAL
1031 { $$ = tree_cons (NULL_TREE, $2, $1);
1032 TREE_STATIC ($$) = 1; }
1033 | declspecs_nosc_nots_nosa_noea SCSPEC
1034 { if (extra_warnings && TREE_STATIC ($1))
1035 warning ("`%s' is not at beginning of declaration",
1036 IDENTIFIER_POINTER ($2));
1037 $$ = tree_cons (NULL_TREE, $2, $1);
1038 TREE_STATIC ($$) = TREE_STATIC ($1); }
1039 | declspecs_nosc_nots_nosa_ea SCSPEC
1040 { if (extra_warnings && TREE_STATIC ($1))
1041 warning ("`%s' is not at beginning of declaration",
1042 IDENTIFIER_POINTER ($2));
1043 $$ = tree_cons (NULL_TREE, $2, $1);
1044 TREE_STATIC ($$) = TREE_STATIC ($1); }
1045 | declspecs_sc_nots_nosa_noea SCSPEC
1046 { if (extra_warnings && TREE_STATIC ($1))
1047 warning ("`%s' is not at beginning of declaration",
1048 IDENTIFIER_POINTER ($2));
1049 $$ = tree_cons (NULL_TREE, $2, $1);
1050 TREE_STATIC ($$) = TREE_STATIC ($1); }
1051 | declspecs_sc_nots_nosa_ea SCSPEC
1052 { if (extra_warnings && TREE_STATIC ($1))
1053 warning ("`%s' is not at beginning of declaration",
1054 IDENTIFIER_POINTER ($2));
1055 $$ = tree_cons (NULL_TREE, $2, $1);
1056 TREE_STATIC ($$) = TREE_STATIC ($1); }
1059 declspecs_sc_nots_nosa_ea:
1060 declspecs_sc_nots_nosa_noea attributes
1061 { $$ = tree_cons ($2, NULL_TREE, $1);
1062 TREE_STATIC ($$) = TREE_STATIC ($1); }
1065 declspecs_sc_nots_sa_noea:
1066 declspecs_sc_nots_sa_noea TYPE_QUAL
1067 { $$ = tree_cons (NULL_TREE, $2, $1);
1068 TREE_STATIC ($$) = 1; }
1069 | declspecs_sc_nots_sa_ea TYPE_QUAL
1070 { $$ = tree_cons (NULL_TREE, $2, $1);
1071 TREE_STATIC ($$) = 1; }
1072 | declspecs_nosc_nots_sa_noea SCSPEC
1073 { if (extra_warnings && TREE_STATIC ($1))
1074 warning ("`%s' is not at beginning of declaration",
1075 IDENTIFIER_POINTER ($2));
1076 $$ = tree_cons (NULL_TREE, $2, $1);
1077 TREE_STATIC ($$) = TREE_STATIC ($1); }
1078 | declspecs_nosc_nots_sa_ea SCSPEC
1079 { if (extra_warnings && TREE_STATIC ($1))
1080 warning ("`%s' is not at beginning of declaration",
1081 IDENTIFIER_POINTER ($2));
1082 $$ = tree_cons (NULL_TREE, $2, $1);
1083 TREE_STATIC ($$) = TREE_STATIC ($1); }
1084 | declspecs_sc_nots_sa_noea SCSPEC
1085 { if (extra_warnings && TREE_STATIC ($1))
1086 warning ("`%s' is not at beginning of declaration",
1087 IDENTIFIER_POINTER ($2));
1088 $$ = tree_cons (NULL_TREE, $2, $1);
1089 TREE_STATIC ($$) = TREE_STATIC ($1); }
1090 | declspecs_sc_nots_sa_ea SCSPEC
1091 { if (extra_warnings && TREE_STATIC ($1))
1092 warning ("`%s' is not at beginning of declaration",
1093 IDENTIFIER_POINTER ($2));
1094 $$ = tree_cons (NULL_TREE, $2, $1);
1095 TREE_STATIC ($$) = TREE_STATIC ($1); }
1098 declspecs_sc_nots_sa_ea:
1099 declspecs_sc_nots_sa_noea attributes
1100 { $$ = tree_cons ($2, NULL_TREE, $1);
1101 TREE_STATIC ($$) = TREE_STATIC ($1); }
1104 declspecs_sc_ts_nosa_noea:
1105 declspecs_sc_ts_nosa_noea TYPE_QUAL
1106 { $$ = tree_cons (NULL_TREE, $2, $1);
1107 TREE_STATIC ($$) = 1; }
1108 | declspecs_sc_ts_nosa_ea TYPE_QUAL
1109 { $$ = tree_cons (NULL_TREE, $2, $1);
1110 TREE_STATIC ($$) = 1; }
1111 | declspecs_sc_ts_nosa_noea typespec_reserved_nonattr
1112 { $$ = tree_cons (NULL_TREE, $2, $1);
1113 TREE_STATIC ($$) = 1; }
1114 | declspecs_sc_ts_nosa_ea typespec_reserved_nonattr
1115 { $$ = tree_cons (NULL_TREE, $2, $1);
1116 TREE_STATIC ($$) = 1; }
1117 | declspecs_sc_nots_nosa_noea typespec_nonattr
1118 { $$ = tree_cons (NULL_TREE, $2, $1);
1119 TREE_STATIC ($$) = 1; }
1120 | declspecs_sc_nots_nosa_ea typespec_nonattr
1121 { $$ = tree_cons (NULL_TREE, $2, $1);
1122 TREE_STATIC ($$) = 1; }
1123 | declspecs_nosc_ts_nosa_noea SCSPEC
1124 { if (extra_warnings && TREE_STATIC ($1))
1125 warning ("`%s' is not at beginning of declaration",
1126 IDENTIFIER_POINTER ($2));
1127 $$ = tree_cons (NULL_TREE, $2, $1);
1128 TREE_STATIC ($$) = TREE_STATIC ($1); }
1129 | declspecs_nosc_ts_nosa_ea SCSPEC
1130 { if (extra_warnings && TREE_STATIC ($1))
1131 warning ("`%s' is not at beginning of declaration",
1132 IDENTIFIER_POINTER ($2));
1133 $$ = tree_cons (NULL_TREE, $2, $1);
1134 TREE_STATIC ($$) = TREE_STATIC ($1); }
1135 | declspecs_sc_ts_nosa_noea SCSPEC
1136 { if (extra_warnings && TREE_STATIC ($1))
1137 warning ("`%s' is not at beginning of declaration",
1138 IDENTIFIER_POINTER ($2));
1139 $$ = tree_cons (NULL_TREE, $2, $1);
1140 TREE_STATIC ($$) = TREE_STATIC ($1); }
1141 | declspecs_sc_ts_nosa_ea SCSPEC
1142 { if (extra_warnings && TREE_STATIC ($1))
1143 warning ("`%s' is not at beginning of declaration",
1144 IDENTIFIER_POINTER ($2));
1145 $$ = tree_cons (NULL_TREE, $2, $1);
1146 TREE_STATIC ($$) = TREE_STATIC ($1); }
1149 declspecs_sc_ts_nosa_ea:
1150 declspecs_sc_ts_nosa_noea attributes
1151 { $$ = tree_cons ($2, NULL_TREE, $1);
1152 TREE_STATIC ($$) = TREE_STATIC ($1); }
1153 | declspecs_sc_ts_nosa_noea typespec_reserved_attr
1154 { $$ = tree_cons (NULL_TREE, $2, $1);
1155 TREE_STATIC ($$) = 1; }
1156 | declspecs_sc_ts_nosa_ea typespec_reserved_attr
1157 { $$ = tree_cons (NULL_TREE, $2, $1);
1158 TREE_STATIC ($$) = 1; }
1159 | declspecs_sc_nots_nosa_noea typespec_attr
1160 { $$ = tree_cons (NULL_TREE, $2, $1);
1161 TREE_STATIC ($$) = 1; }
1162 | declspecs_sc_nots_nosa_ea typespec_attr
1163 { $$ = tree_cons (NULL_TREE, $2, $1);
1164 TREE_STATIC ($$) = 1; }
1167 declspecs_sc_ts_sa_noea:
1168 declspecs_sc_ts_sa_noea TYPE_QUAL
1169 { $$ = tree_cons (NULL_TREE, $2, $1);
1170 TREE_STATIC ($$) = 1; }
1171 | declspecs_sc_ts_sa_ea TYPE_QUAL
1172 { $$ = tree_cons (NULL_TREE, $2, $1);
1173 TREE_STATIC ($$) = 1; }
1174 | declspecs_sc_ts_sa_noea typespec_reserved_nonattr
1175 { $$ = tree_cons (NULL_TREE, $2, $1);
1176 TREE_STATIC ($$) = 1; }
1177 | declspecs_sc_ts_sa_ea typespec_reserved_nonattr
1178 { $$ = tree_cons (NULL_TREE, $2, $1);
1179 TREE_STATIC ($$) = 1; }
1180 | declspecs_sc_nots_sa_noea typespec_nonattr
1181 { $$ = tree_cons (NULL_TREE, $2, $1);
1182 TREE_STATIC ($$) = 1; }
1183 | declspecs_sc_nots_sa_ea typespec_nonattr
1184 { $$ = tree_cons (NULL_TREE, $2, $1);
1185 TREE_STATIC ($$) = 1; }
1186 | declspecs_nosc_ts_sa_noea SCSPEC
1187 { if (extra_warnings && TREE_STATIC ($1))
1188 warning ("`%s' is not at beginning of declaration",
1189 IDENTIFIER_POINTER ($2));
1190 $$ = tree_cons (NULL_TREE, $2, $1);
1191 TREE_STATIC ($$) = TREE_STATIC ($1); }
1192 | declspecs_nosc_ts_sa_ea SCSPEC
1193 { if (extra_warnings && TREE_STATIC ($1))
1194 warning ("`%s' is not at beginning of declaration",
1195 IDENTIFIER_POINTER ($2));
1196 $$ = tree_cons (NULL_TREE, $2, $1);
1197 TREE_STATIC ($$) = TREE_STATIC ($1); }
1198 | declspecs_sc_ts_sa_noea SCSPEC
1199 { if (extra_warnings && TREE_STATIC ($1))
1200 warning ("`%s' is not at beginning of declaration",
1201 IDENTIFIER_POINTER ($2));
1202 $$ = tree_cons (NULL_TREE, $2, $1);
1203 TREE_STATIC ($$) = TREE_STATIC ($1); }
1204 | declspecs_sc_ts_sa_ea SCSPEC
1205 { if (extra_warnings && TREE_STATIC ($1))
1206 warning ("`%s' is not at beginning of declaration",
1207 IDENTIFIER_POINTER ($2));
1208 $$ = tree_cons (NULL_TREE, $2, $1);
1209 TREE_STATIC ($$) = TREE_STATIC ($1); }
1212 declspecs_sc_ts_sa_ea:
1213 declspecs_sc_ts_sa_noea attributes
1214 { $$ = tree_cons ($2, NULL_TREE, $1);
1215 TREE_STATIC ($$) = TREE_STATIC ($1); }
1216 | declspecs_sc_ts_sa_noea typespec_reserved_attr
1217 { $$ = tree_cons (NULL_TREE, $2, $1);
1218 TREE_STATIC ($$) = 1; }
1219 | declspecs_sc_ts_sa_ea typespec_reserved_attr
1220 { $$ = tree_cons (NULL_TREE, $2, $1);
1221 TREE_STATIC ($$) = 1; }
1222 | declspecs_sc_nots_sa_noea typespec_attr
1223 { $$ = tree_cons (NULL_TREE, $2, $1);
1224 TREE_STATIC ($$) = 1; }
1225 | declspecs_sc_nots_sa_ea typespec_attr
1226 { $$ = tree_cons (NULL_TREE, $2, $1);
1227 TREE_STATIC ($$) = 1; }
1230 /* Particular useful classes of declspecs. */
1232 declspecs_nosc_ts_nosa_noea
1233 | declspecs_nosc_ts_nosa_ea
1234 | declspecs_nosc_ts_sa_noea
1235 | declspecs_nosc_ts_sa_ea
1236 | declspecs_sc_ts_nosa_noea
1237 | declspecs_sc_ts_nosa_ea
1238 | declspecs_sc_ts_sa_noea
1239 | declspecs_sc_ts_sa_ea
1243 declspecs_nosc_nots_nosa_noea
1244 | declspecs_nosc_nots_nosa_ea
1245 | declspecs_nosc_nots_sa_noea
1246 | declspecs_nosc_nots_sa_ea
1247 | declspecs_sc_nots_nosa_noea
1248 | declspecs_sc_nots_nosa_ea
1249 | declspecs_sc_nots_sa_noea
1250 | declspecs_sc_nots_sa_ea
1254 declspecs_nosc_ts_nosa_noea
1255 | declspecs_nosc_ts_nosa_ea
1256 | declspecs_sc_ts_nosa_noea
1257 | declspecs_sc_ts_nosa_ea
1260 declspecs_nots_nosa:
1261 declspecs_nosc_nots_nosa_noea
1262 | declspecs_nosc_nots_nosa_ea
1263 | declspecs_sc_nots_nosa_noea
1264 | declspecs_sc_nots_nosa_ea
1268 declspecs_nosc_ts_nosa_noea
1269 | declspecs_nosc_ts_nosa_ea
1270 | declspecs_nosc_ts_sa_noea
1271 | declspecs_nosc_ts_sa_ea
1274 declspecs_nosc_nots:
1275 declspecs_nosc_nots_nosa_noea
1276 | declspecs_nosc_nots_nosa_ea
1277 | declspecs_nosc_nots_sa_noea
1278 | declspecs_nosc_nots_sa_ea
1282 declspecs_nosc_ts_nosa_noea
1283 | declspecs_nosc_ts_nosa_ea
1284 | declspecs_nosc_ts_sa_noea
1285 | declspecs_nosc_ts_sa_ea
1286 | declspecs_nosc_nots_nosa_noea
1287 | declspecs_nosc_nots_nosa_ea
1288 | declspecs_nosc_nots_sa_noea
1289 | declspecs_nosc_nots_sa_ea
1293 declspecs_nosc_nots_nosa_noea
1294 | declspecs_nosc_nots_nosa_ea
1295 | declspecs_nosc_nots_sa_noea
1296 | declspecs_nosc_nots_sa_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
1301 | declspecs_sc_nots_nosa_noea
1302 | declspecs_sc_nots_nosa_ea
1303 | declspecs_sc_nots_sa_noea
1304 | declspecs_sc_nots_sa_ea
1305 | declspecs_sc_ts_nosa_noea
1306 | declspecs_sc_ts_nosa_ea
1307 | declspecs_sc_ts_sa_noea
1308 | declspecs_sc_ts_sa_ea
1311 /* A (possibly empty) sequence of type qualifiers and attributes. */
1312 maybe_type_quals_attrs:
1315 | declspecs_nosc_nots
1319 /* A type specifier (but not a type qualifier).
1320 Once we have seen one of these in a declaration,
1321 if a typedef name appears then it is being redeclared.
1323 The _reserved versions start with a reserved word and may appear anywhere
1324 in the declaration specifiers; the _nonreserved versions may only
1325 appear before any other type specifiers, and after that are (if names)
1328 FIXME: should the _nonreserved version be restricted to names being
1329 redeclared only? The other entries there relate only the GNU extensions
1330 and Objective C, and are historically parsed thus, and don't make sense
1331 after other type specifiers, but it might be cleaner to count them as
1334 _attr means: specifiers that either end with attributes,
1335 or are such that any following attributes would
1336 be parsed as part of the specifier.
1338 _nonattr: specifiers. */
1341 typespec_reserved_nonattr
1342 | typespec_nonreserved_nonattr
1346 typespec_reserved_attr
1349 typespec_reserved_nonattr:
1351 { OBJC_NEED_RAW_IDENTIFIER (1); }
1355 typespec_reserved_attr:
1359 typespec_nonreserved_nonattr:
1361 { /* For a typedef name, record the meaning, not the name.
1362 In case of `foo foo, bar;'. */
1363 $$ = lookup_name ($1); }
1365 | CLASSNAME protocolrefs
1366 { $$ = get_static_reference ($1, $2); }
1367 | OBJECTNAME protocolrefs
1368 { $$ = get_object_reference ($2); }
1370 /* Make "<SomeProtocol>" equivalent to "id <SomeProtocol>"
1371 - nisse@lysator.liu.se */
1372 | non_empty_protocolrefs
1373 { $$ = get_object_reference ($1); }
1375 | TYPEOF '(' expr ')'
1376 { $$ = TREE_TYPE ($3); }
1377 | TYPEOF '(' typename ')'
1378 { $$ = groktypename ($3); }
1381 /* typespec_nonreserved_attr does not exist. */
1385 | initdecls ',' maybe_resetattrs initdcl
1390 | notype_initdecls ',' maybe_resetattrs notype_initdcl
1396 | ASM_KEYWORD '(' string ')'
1397 { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
1403 declarator maybeasm maybe_attribute '='
1404 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1405 chainon ($3, all_prefix_attributes));
1406 start_init ($<ttype>$, $2, global_bindings_p ()); }
1408 /* Note how the declaration of the variable is in effect while its init is parsed! */
1410 finish_decl ($<ttype>5, $6, $2); }
1411 | declarator maybeasm maybe_attribute
1412 { tree d = start_decl ($1, current_declspecs, 0,
1413 chainon ($3, all_prefix_attributes));
1414 finish_decl (d, NULL_TREE, $2);
1419 notype_declarator maybeasm maybe_attribute '='
1420 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1421 chainon ($3, all_prefix_attributes));
1422 start_init ($<ttype>$, $2, global_bindings_p ()); }
1424 /* Note how the declaration of the variable is in effect while its init is parsed! */
1426 finish_decl ($<ttype>5, $6, $2); }
1427 | notype_declarator maybeasm maybe_attribute
1428 { tree d = start_decl ($1, current_declspecs, 0,
1429 chainon ($3, all_prefix_attributes));
1430 finish_decl (d, NULL_TREE, $2); }
1432 /* the * rules are dummies to accept the Apollo extended syntax
1433 so that the header files compile. */
1444 | attributes attribute
1445 { $$ = chainon ($1, $2); }
1449 ATTRIBUTE '(' '(' attribute_list ')' ')'
1456 | attribute_list ',' attrib
1457 { $$ = chainon ($1, $3); }
1464 { $$ = build_tree_list ($1, NULL_TREE); }
1465 | any_word '(' IDENTIFIER ')'
1466 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
1467 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
1468 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
1469 | any_word '(' exprlist ')'
1470 { $$ = build_tree_list ($1, $3); }
1473 /* This still leaves out most reserved keywords,
1474 shouldn't we include them? */
1483 /* Initializers. `init' is the entry point. */
1488 { really_start_incremental_init (NULL_TREE); }
1489 initlist_maybe_comma '}'
1490 { $$ = pop_init_level (0); }
1492 { $$ = error_mark_node; }
1495 /* `initlist_maybe_comma' is the guts of an initializer in braces. */
1496 initlist_maybe_comma:
1499 pedwarn ("ISO C forbids empty initializer braces"); }
1500 | initlist1 maybecomma
1505 | initlist1 ',' initelt
1508 /* `initelt' is a single element of an initializer.
1509 It may use braces. */
1511 designator_list '=' initval
1512 { if (pedantic && ! flag_isoc99)
1513 pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
1514 | designator initval
1516 pedwarn ("obsolete use of designated initializer without `='"); }
1518 { set_init_label ($1);
1520 pedwarn ("obsolete use of designated initializer with `:'"); }
1527 { push_init_level (0); }
1528 initlist_maybe_comma '}'
1529 { process_init_element (pop_init_level (0)); }
1531 { process_init_element ($1); }
1537 | designator_list designator
1542 { set_init_label ($2); }
1543 /* These are for labeled elements. The syntax for an array element
1544 initializer conflicts with the syntax for an Objective-C message,
1545 so don't include these productions in the Objective-C grammar. */
1547 | '[' expr_no_commas ELLIPSIS expr_no_commas ']'
1548 { set_init_index ($2, $4);
1550 pedwarn ("ISO C forbids specifying range of elements to initialize"); }
1551 | '[' expr_no_commas ']'
1552 { set_init_index ($2, NULL_TREE); }
1559 pedwarn ("ISO C forbids nested functions");
1561 push_function_context ();
1562 if (! start_function (current_declspecs, $1,
1563 all_prefix_attributes))
1565 pop_function_context ();
1569 old_style_parm_decls
1570 { store_parm_decls (); }
1571 /* This used to use compstmt_or_error.
1572 That caused a bug with input `f(g) int g {}',
1573 where the use of YYERROR1 above caused an error
1574 which then was handled by compstmt_or_error.
1575 There followed a repeated execution of that same rule,
1576 which called YYERROR1 again, and so on. */
1577 save_filename save_lineno compstmt
1578 { tree decl = current_function_decl;
1579 DECL_SOURCE_FILE (decl) = $5;
1580 DECL_SOURCE_LINE (decl) = $6;
1581 finish_function (1);
1582 pop_function_context ();
1583 add_decl_stmt (decl); }
1586 notype_nested_function:
1589 pedwarn ("ISO C forbids nested functions");
1591 push_function_context ();
1592 if (! start_function (current_declspecs, $1,
1593 all_prefix_attributes))
1595 pop_function_context ();
1599 old_style_parm_decls
1600 { store_parm_decls (); }
1601 /* This used to use compstmt_or_error.
1602 That caused a bug with input `f(g) int g {}',
1603 where the use of YYERROR1 above caused an error
1604 which then was handled by compstmt_or_error.
1605 There followed a repeated execution of that same rule,
1606 which called YYERROR1 again, and so on. */
1607 save_filename save_lineno compstmt
1608 { tree decl = current_function_decl;
1609 DECL_SOURCE_FILE (decl) = $5;
1610 DECL_SOURCE_LINE (decl) = $6;
1611 finish_function (1);
1612 pop_function_context ();
1613 add_decl_stmt (decl); }
1616 /* Any kind of declarator (thus, all declarators allowed
1617 after an explicit typespec). */
1620 after_type_declarator
1624 /* A declarator that is allowed only after an explicit typespec. */
1626 after_type_declarator:
1627 '(' maybe_attribute after_type_declarator ')'
1628 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1629 | after_type_declarator '(' parmlist_or_identifiers %prec '.'
1630 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1631 /* | after_type_declarator '(' error ')' %prec '.'
1632 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1633 poplevel (0, 0, 0); } */
1634 | after_type_declarator array_declarator %prec '.'
1635 { $$ = set_array_declarator_type ($2, $1, 0); }
1636 | '*' maybe_type_quals_attrs after_type_declarator %prec UNARY
1637 { $$ = make_pointer_declarator ($2, $3); }
1644 /* Kinds of declarator that can appear in a parameter list
1645 in addition to notype_declarator. This is like after_type_declarator
1646 but does not allow a typedef name in parentheses as an identifier
1647 (because it would conflict with a function with that typedef as arg). */
1649 parm_declarator_starttypename
1650 | parm_declarator_nostarttypename
1653 parm_declarator_starttypename:
1654 parm_declarator_starttypename '(' parmlist_or_identifiers %prec '.'
1655 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1656 /* | parm_declarator_starttypename '(' error ')' %prec '.'
1657 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1658 poplevel (0, 0, 0); } */
1659 | parm_declarator_starttypename array_declarator %prec '.'
1660 { $$ = set_array_declarator_type ($2, $1, 0); }
1667 parm_declarator_nostarttypename:
1668 parm_declarator_nostarttypename '(' parmlist_or_identifiers %prec '.'
1669 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1670 /* | parm_declarator_nostarttypename '(' error ')' %prec '.'
1671 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1672 poplevel (0, 0, 0); } */
1673 | parm_declarator_nostarttypename array_declarator %prec '.'
1674 { $$ = set_array_declarator_type ($2, $1, 0); }
1675 | '*' maybe_type_quals_attrs parm_declarator_starttypename %prec UNARY
1676 { $$ = make_pointer_declarator ($2, $3); }
1677 | '*' maybe_type_quals_attrs parm_declarator_nostarttypename %prec UNARY
1678 { $$ = make_pointer_declarator ($2, $3); }
1679 | '(' maybe_attribute parm_declarator_nostarttypename ')'
1680 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1683 /* A declarator allowed whether or not there has been
1684 an explicit typespec. These cannot redeclare a typedef-name. */
1687 notype_declarator '(' parmlist_or_identifiers %prec '.'
1688 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1689 /* | notype_declarator '(' error ')' %prec '.'
1690 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1691 poplevel (0, 0, 0); } */
1692 | '(' maybe_attribute notype_declarator ')'
1693 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1694 | '*' maybe_type_quals_attrs notype_declarator %prec UNARY
1695 { $$ = make_pointer_declarator ($2, $3); }
1696 | notype_declarator array_declarator %prec '.'
1697 { $$ = set_array_declarator_type ($2, $1, 0); }
1722 /* structsp_attr: struct/union/enum specifiers that either
1723 end with attributes, or are such that any following attributes would
1724 be parsed as part of the struct/union/enum specifier.
1726 structsp_nonattr: other struct/union/enum specifiers. */
1729 struct_head identifier '{'
1730 { $$ = start_struct (RECORD_TYPE, $2);
1731 /* Start scope of tag before parsing components. */
1733 component_decl_list '}' maybe_attribute
1734 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1735 | struct_head '{' component_decl_list '}' maybe_attribute
1736 { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
1737 $3, chainon ($1, $5));
1739 | union_head identifier '{'
1740 { $$ = start_struct (UNION_TYPE, $2); }
1741 component_decl_list '}' maybe_attribute
1742 { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
1743 | union_head '{' component_decl_list '}' maybe_attribute
1744 { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
1745 $3, chainon ($1, $5));
1747 | enum_head identifier '{'
1748 { $$ = start_enum ($2); }
1749 enumlist maybecomma_warn '}' maybe_attribute
1750 { $$ = finish_enum ($<ttype>4, nreverse ($5),
1751 chainon ($1, $8)); }
1753 { $$ = start_enum (NULL_TREE); }
1754 enumlist maybecomma_warn '}' maybe_attribute
1755 { $$ = finish_enum ($<ttype>3, nreverse ($4),
1756 chainon ($1, $7)); }
1760 struct_head identifier
1761 { $$ = xref_tag (RECORD_TYPE, $2); }
1762 | union_head identifier
1763 { $$ = xref_tag (UNION_TYPE, $2); }
1764 | enum_head identifier
1765 { $$ = xref_tag (ENUMERAL_TYPE, $2);
1766 /* In ISO C, enumerated types can be referred to
1767 only if already defined. */
1768 if (pedantic && !COMPLETE_TYPE_P ($$))
1769 pedwarn ("ISO C forbids forward references to `enum' types"); }
1780 { if (pedantic && ! flag_isoc99)
1781 pedwarn ("comma at end of enumerator list"); }
1784 component_decl_list:
1785 component_decl_list2
1787 | component_decl_list2 component_decl
1788 { $$ = chainon ($1, $2);
1789 pedwarn ("no semicolon at end of struct or union"); }
1792 component_decl_list2: /* empty */
1794 | component_decl_list2 component_decl ';'
1795 { $$ = chainon ($1, $2); }
1796 | component_decl_list2 ';'
1798 pedwarn ("extra semicolon in struct or union specified"); }
1800 /* foo(sizeof(struct{ @defs(ClassName)})); */
1801 | DEFS '(' CLASSNAME ')'
1803 tree interface = lookup_interface ($3);
1806 $$ = get_class_ivars (interface);
1809 error ("cannot find interface declaration for `%s'",
1810 IDENTIFIER_POINTER ($3));
1818 declspecs_nosc_ts setspecs components
1820 POP_DECLSPEC_STACK; }
1821 | declspecs_nosc_ts setspecs save_filename save_lineno
1823 /* Support for unnamed structs or unions as members of
1824 structs or unions (which is [a] useful and [b] supports
1827 pedwarn ("ISO C doesn't support unnamed structs/unions");
1829 $$ = grokfield($3, $4, NULL, current_declspecs, NULL_TREE);
1830 POP_DECLSPEC_STACK; }
1831 | declspecs_nosc_nots setspecs components_notype
1833 POP_DECLSPEC_STACK; }
1834 | declspecs_nosc_nots
1836 pedwarn ("ISO C forbids member declarations with no members");
1841 | extension component_decl
1843 RESTORE_WARN_FLAGS ($1); }
1847 component_declarator
1848 | components ',' maybe_resetattrs component_declarator
1849 { $$ = chainon ($1, $4); }
1853 component_notype_declarator
1854 | components_notype ',' maybe_resetattrs component_notype_declarator
1855 { $$ = chainon ($1, $4); }
1858 component_declarator:
1859 save_filename save_lineno declarator maybe_attribute
1860 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1861 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1862 | save_filename save_lineno
1863 declarator ':' expr_no_commas maybe_attribute
1864 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1865 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1866 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1867 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1868 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1871 component_notype_declarator:
1872 save_filename save_lineno notype_declarator maybe_attribute
1873 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1874 decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
1875 | save_filename save_lineno
1876 notype_declarator ':' expr_no_commas maybe_attribute
1877 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1878 decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
1879 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1880 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1881 decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
1884 /* We chain the enumerators in reverse order.
1885 They are put in forward order where enumlist is used.
1886 (The order used to be significant, but no longer is so.
1887 However, we still maintain the order, just to be clean.) */
1891 | enumlist ',' enumerator
1892 { if ($1 == error_mark_node)
1895 $$ = chainon ($3, $1); }
1897 { $$ = error_mark_node; }
1903 { $$ = build_enumerator ($1, NULL_TREE); }
1904 | identifier '=' expr_no_commas
1905 { $$ = build_enumerator ($1, $3); }
1910 { pending_xref_error ();
1913 { $$ = build_tree_list ($<ttype>2, $3); }
1916 absdcl: /* an absolute declarator */
1922 absdcl_maybe_attribute: /* absdcl maybe_attribute, but not just attributes */
1924 { $$ = build_tree_list (build_tree_list (current_declspecs,
1926 all_prefix_attributes); }
1928 { $$ = build_tree_list (build_tree_list (current_declspecs,
1930 all_prefix_attributes); }
1931 | absdcl1_noea attributes
1932 { $$ = build_tree_list (build_tree_list (current_declspecs,
1934 chainon ($2, all_prefix_attributes)); }
1937 absdcl1: /* a nonempty absolute declarator */
1944 | '*' maybe_type_quals_attrs absdcl1_noea
1945 { $$ = make_pointer_declarator ($2, $3); }
1949 '*' maybe_type_quals_attrs
1950 { $$ = make_pointer_declarator ($2, NULL_TREE); }
1951 | '*' maybe_type_quals_attrs absdcl1_ea
1952 { $$ = make_pointer_declarator ($2, $3); }
1956 '(' maybe_attribute absdcl1 ')'
1957 { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
1958 | direct_absdcl1 '(' parmlist
1959 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1960 | direct_absdcl1 array_declarator
1961 { $$ = set_array_declarator_type ($2, $1, 1); }
1963 { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
1965 { $$ = set_array_declarator_type ($1, NULL_TREE, 1); }
1968 /* The [...] part of a declarator for an array type. */
1972 { $$ = build_array_declarator ($2, NULL_TREE, 0, 0); }
1973 | '[' declspecs_nosc expr ']'
1974 { $$ = build_array_declarator ($3, $2, 0, 0); }
1976 { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 0); }
1977 | '[' declspecs_nosc ']'
1978 { $$ = build_array_declarator (NULL_TREE, $2, 0, 0); }
1980 { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 1); }
1981 | '[' declspecs_nosc '*' ']'
1982 { $$ = build_array_declarator (NULL_TREE, $2, 0, 1); }
1983 | '[' SCSPEC expr ']'
1984 { if (C_RID_CODE ($2) != RID_STATIC)
1985 error ("storage class specifier in array declarator");
1986 $$ = build_array_declarator ($3, NULL_TREE, 1, 0); }
1987 | '[' SCSPEC declspecs_nosc expr ']'
1988 { if (C_RID_CODE ($2) != RID_STATIC)
1989 error ("storage class specifier in array declarator");
1990 $$ = build_array_declarator ($4, $3, 1, 0); }
1991 | '[' declspecs_nosc SCSPEC expr ']'
1992 { if (C_RID_CODE ($3) != RID_STATIC)
1993 error ("storage class specifier in array declarator");
1994 $$ = build_array_declarator ($4, $2, 1, 0); }
1997 /* A nonempty series of declarations and statements (possibly followed by
1998 some labels) that can form the body of a compound statement.
1999 NOTE: we don't allow labels on declarations; this might seem like a
2000 natural extension, but there would be a conflict between attributes
2001 on the label and prefix attributes on the declaration. */
2004 lineno_stmt_decl_or_labels_ending_stmt
2005 | lineno_stmt_decl_or_labels_ending_decl
2006 | lineno_stmt_decl_or_labels_ending_label
2008 pedwarn ("deprecated use of label at end of compound statement");
2010 | lineno_stmt_decl_or_labels_ending_error
2013 lineno_stmt_decl_or_labels_ending_stmt:
2015 | lineno_stmt_decl_or_labels_ending_stmt lineno_stmt
2016 | lineno_stmt_decl_or_labels_ending_decl lineno_stmt
2017 | lineno_stmt_decl_or_labels_ending_label lineno_stmt
2018 | lineno_stmt_decl_or_labels_ending_error lineno_stmt
2021 lineno_stmt_decl_or_labels_ending_decl:
2023 | lineno_stmt_decl_or_labels_ending_stmt lineno_decl
2024 { if (pedantic && !flag_isoc99)
2025 pedwarn ("ISO C89 forbids mixed declarations and code"); }
2026 | lineno_stmt_decl_or_labels_ending_decl lineno_decl
2027 | lineno_stmt_decl_or_labels_ending_error lineno_decl
2030 lineno_stmt_decl_or_labels_ending_label:
2032 | lineno_stmt_decl_or_labels_ending_stmt lineno_label
2033 | lineno_stmt_decl_or_labels_ending_decl lineno_label
2034 | lineno_stmt_decl_or_labels_ending_label lineno_label
2035 | lineno_stmt_decl_or_labels_ending_error lineno_label
2038 lineno_stmt_decl_or_labels_ending_error:
2040 | lineno_stmt_decl_or_labels errstmt
2043 lineno_stmt_decl_or_labels:
2044 lineno_stmt_decl_or_labels_ending_stmt
2045 | lineno_stmt_decl_or_labels_ending_decl
2046 | lineno_stmt_decl_or_labels_ending_label
2047 | lineno_stmt_decl_or_labels_ending_error
2053 pushlevel: /* empty */
2056 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2058 if (objc_method_context)
2064 poplevel: /* empty */
2065 { $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
2067 /* Start and end blocks created for the new scopes of C99. */
2068 c99_block_start: /* empty */
2071 $$ = c_begin_compound_stmt ();
2074 add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
2076 if (objc_method_context)
2085 /* Productions using c99_block_start and c99_block_end will need to do what's
2086 in compstmt: RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); $$ = $2; where
2087 $1 is the value of c99_block_start and $2 of c99_block_end. */
2088 c99_block_end: /* empty */
2091 tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
2092 $$ = poplevel (kept_level_p (), 0, 0);
2093 SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
2094 = SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
2101 /* Read zero or more forward-declarations for labels
2102 that nested functions can jump to. */
2107 pedwarn ("ISO C forbids label declarations"); }
2112 | label_decls label_decl
2116 LABEL identifiers_or_typenames ';'
2118 for (link = $2; link; link = TREE_CHAIN (link))
2120 tree label = shadow_label (TREE_VALUE (link));
2121 C_DECLARED_LABEL_FLAG (label) = 1;
2122 add_decl_stmt (label);
2127 /* This is the body of a function definition.
2128 It causes syntax errors to ignore to the next openbrace. */
2135 compstmt_start: '{' { compstmt_count++;
2136 $$ = c_begin_compound_stmt (); }
2138 compstmt_nostart: '}'
2139 { $$ = convert (void_type_node, integer_zero_node); }
2140 | pushlevel maybe_label_decls compstmt_contents_nonempty '}' poplevel
2141 { $$ = poplevel (kept_level_p (), 1, 0);
2142 SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
2143 = SCOPE_STMT_BLOCK (TREE_VALUE ($5))
2147 compstmt_contents_nonempty:
2152 compstmt_primary_start:
2154 { if (current_function_decl == 0)
2156 error ("braced-group within expression allowed only inside a function");
2159 /* We must force a BLOCK for this level
2160 so that, if it is not expanded later,
2161 there is a way to turn off the entire subtree of blocks
2162 that are contained in it. */
2164 push_label_level ();
2166 $$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
2169 compstmt: compstmt_start compstmt_nostart
2170 { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2174 /* Value is number of statements counted as of the closeparen. */
2176 if_prefix c99_block_lineno_labeled_stmt
2177 { c_finish_then (); }
2178 /* Make sure c_expand_end_cond is run once
2179 for each call to c_expand_start_cond.
2180 Otherwise a crash is likely. */
2186 { c_expand_start_cond (truthvalue_conversion ($3),
2188 $<itype>$ = stmt_count;
2189 if_stmt_file = $<filename>-2;
2190 if_stmt_line = $<lineno>-1; }
2193 /* This is a subroutine of stmt.
2194 It is used twice, once for valid DO statements
2195 and once for catching errors in parsing the end test. */
2201 = add_stmt (build_stmt (DO_STMT, NULL_TREE,
2203 /* In the event that a parse error prevents
2204 parsing the complete do-statement, set the
2205 condition now. Otherwise, we can get crashes at
2206 RTL-generation time. */
2207 DO_COND ($<ttype>$) = error_mark_node; }
2208 c99_block_lineno_labeled_stmt WHILE
2210 RECHAIN_STMTS ($$, DO_BODY ($$)); }
2213 /* The forced readahead in here is because we might be at the end of a
2214 line, and the line and file won't be bumped until yylex absorbs the
2215 first token on the next line. */
2217 { if (yychar == YYEMPTY)
2219 $$ = input_filename; }
2223 { if (yychar == YYEMPTY)
2228 lineno_labeled_stmt:
2230 | lineno_label lineno_labeled_stmt
2233 /* Like lineno_labeled_stmt, but a block in C99. */
2234 c99_block_lineno_labeled_stmt:
2235 c99_block_start lineno_labeled_stmt c99_block_end
2237 RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); }
2241 save_filename save_lineno stmt
2244 STMT_LINENO ($3) = $2;
2245 /* ??? We currently have no way of recording
2246 the filename for a statement. This probably
2247 matters little in practice at the moment,
2248 but I suspect that problems will occur when
2249 doing inlining at the tree level. */
2255 save_filename save_lineno label
2258 STMT_LINENO ($3) = $2;
2263 select_or_iter_stmt:
2265 { c_expand_start_else ();
2266 $<itype>1 = stmt_count; }
2267 c99_block_lineno_labeled_stmt
2269 c_expand_end_cond ();
2270 if (extra_warnings && stmt_count == $<itype>1)
2271 warning ("empty body in an else-statement"); }
2272 | simple_if %prec IF
2273 { c_expand_end_cond ();
2274 /* This warning is here instead of in simple_if, because we
2275 do not want a warning if an empty if is followed by an
2276 else statement. Increment stmt_count so we don't
2277 give a second error if this is a nested `if'. */
2278 if (extra_warnings && stmt_count++ == $<itype>1)
2279 warning_with_file_and_line (if_stmt_file, if_stmt_line,
2280 "empty body in an if-statement"); }
2281 /* Make sure c_expand_end_cond is run once
2282 for each call to c_expand_start_cond.
2283 Otherwise a crash is likely. */
2284 | simple_if ELSE error
2285 { c_expand_end_cond (); }
2289 { $4 = truthvalue_conversion ($4);
2291 = add_stmt (build_stmt (WHILE_STMT, $4, NULL_TREE)); }
2292 c99_block_lineno_labeled_stmt
2293 { RECHAIN_STMTS ($<ttype>6, WHILE_BODY ($<ttype>6)); }
2296 { DO_COND ($1) = truthvalue_conversion ($3); }
2297 | do_stmt_start error
2300 { $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
2301 NULL_TREE, NULL_TREE);
2302 add_stmt ($<ttype>$); }
2305 RECHAIN_STMTS ($<ttype>2, FOR_INIT_STMT ($<ttype>2)); }
2308 FOR_COND ($<ttype>2) = truthvalue_conversion ($6); }
2310 { FOR_EXPR ($<ttype>2) = $9; }
2311 c99_block_lineno_labeled_stmt
2312 { RECHAIN_STMTS ($<ttype>2, FOR_BODY ($<ttype>2)); }
2313 | SWITCH '(' expr ')'
2315 $<ttype>$ = c_start_case ($3); }
2316 c99_block_lineno_labeled_stmt
2317 { c_finish_case (); }
2322 { add_stmt (build_stmt (EXPR_STMT, $1)); }
2324 { check_for_loop_decls (); }
2327 /* Parse a single real statement, not including any labels. */
2330 { stmt_count++; $$ = $1; }
2333 $$ = c_expand_expr_stmt ($1); }
2334 | c99_block_start select_or_iter_stmt c99_block_end
2336 RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
2340 $$ = add_stmt (build_break_stmt ()); }
2343 $$ = add_stmt (build_continue_stmt ()); }
2346 $$ = c_expand_return (NULL_TREE); }
2349 $$ = c_expand_return ($2); }
2350 | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
2352 $$ = simple_asm_stmt ($4); }
2353 /* This is the case with just output operands. */
2354 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
2356 $$ = build_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
2357 /* This is the case with input operands as well. */
2358 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2359 asm_operands ')' ';'
2361 $$ = build_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
2362 /* This is the case with clobbered registers as well. */
2363 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
2364 asm_operands ':' asm_clobbers ')' ';'
2366 $$ = build_asm_stmt ($2, $4, $6, $8, $10); }
2367 | GOTO identifier ';'
2370 decl = lookup_label ($2);
2373 TREE_USED (decl) = 1;
2374 $$ = add_stmt (build_stmt (GOTO_STMT, decl));
2381 pedwarn ("ISO C forbids `goto *expr;'");
2383 $3 = convert (ptr_type_node, $3);
2384 $$ = add_stmt (build_stmt (GOTO_STMT, $3)); }
2389 /* Any kind of label, including jump labels and case labels.
2390 ANSI C accepts labels only before statements, but we allow them
2391 also at the end of a compound statement. */
2393 label: CASE expr_no_commas ':'
2395 $$ = do_case ($2, NULL_TREE); }
2396 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
2398 $$ = do_case ($2, $4); }
2401 $$ = do_case (NULL_TREE, NULL_TREE); }
2402 | identifier save_filename save_lineno ':' maybe_attribute
2403 { tree label = define_label ($2, $3, $1);
2407 decl_attributes (&label, $5, 0);
2408 $$ = add_stmt (build_stmt (LABEL_STMT, label));
2415 /* Either a type-qualifier or nothing. First thing in an `asm' statement. */
2419 { emit_line_note (input_filename, lineno);
2422 { emit_line_note (input_filename, lineno); }
2431 /* These are the operands other than the first string and colon
2432 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
2433 asm_operands: /* empty */
2435 | nonnull_asm_operands
2438 nonnull_asm_operands:
2440 | nonnull_asm_operands ',' asm_operand
2441 { $$ = chainon ($1, $3); }
2446 { $$ = build_tree_list (build_tree_list (NULL_TREE, $1), $3); }
2447 | '[' identifier ']' STRING '(' expr ')'
2448 { $$ = build_tree_list (build_tree_list ($2, $4), $6); }
2453 { $$ = tree_cons (NULL_TREE, combine_strings ($1), NULL_TREE); }
2454 | asm_clobbers ',' string
2455 { $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
2458 /* This is what appears inside the parens in a function declarator.
2459 Its value is a list of ..._TYPE nodes. Attributes must appear here
2460 to avoid a conflict with their appearance after an open parenthesis
2461 in an abstract declarator, as in
2462 "void bar (int (__attribute__((__mode__(SI))) int foo));". */
2466 clear_parm_order ();
2467 declare_parm_level (0); }
2470 parmlist_tags_warning ();
2471 poplevel (0, 0, 0); }
2479 pedwarn ("ISO C forbids forward parameter declarations");
2480 /* Mark the forward decls as such. */
2481 for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
2482 TREE_ASM_WRITTEN (parm) = 1;
2483 clear_parm_order (); }
2485 { /* Dummy action so attributes are in known place
2486 on parser stack. */ }
2490 { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
2493 /* This is what appears inside the parens in a function declarator.
2494 Is value is represented in the format that grokdeclarator expects. */
2495 parmlist_2: /* empty */
2496 { $$ = get_parm_info (0); }
2498 { $$ = get_parm_info (0);
2499 /* Gcc used to allow this as an extension. However, it does
2500 not work for all targets, and thus has been disabled.
2501 Also, since func (...) and func () are indistinguishable,
2502 it caused problems with the code in expand_builtin which
2503 tries to verify that BUILT_IN_NEXT_ARG is being used
2505 error ("ISO C requires a named argument before `...'");
2508 { $$ = get_parm_info (1); }
2509 | parms ',' ELLIPSIS
2510 { $$ = get_parm_info (0); }
2515 { push_parm_decl ($1); }
2517 { push_parm_decl ($3); }
2520 /* A single parameter declaration or parameter type name,
2521 as found in a parmlist. */
2523 declspecs_ts setspecs parm_declarator maybe_attribute
2524 { $$ = build_tree_list (build_tree_list (current_declspecs,
2526 chainon ($4, all_prefix_attributes));
2527 POP_DECLSPEC_STACK; }
2528 | declspecs_ts setspecs notype_declarator maybe_attribute
2529 { $$ = build_tree_list (build_tree_list (current_declspecs,
2531 chainon ($4, all_prefix_attributes));
2532 POP_DECLSPEC_STACK; }
2533 | declspecs_ts setspecs absdcl_maybe_attribute
2535 POP_DECLSPEC_STACK; }
2536 | declspecs_nots setspecs notype_declarator maybe_attribute
2537 { $$ = build_tree_list (build_tree_list (current_declspecs,
2539 chainon ($4, all_prefix_attributes));
2540 POP_DECLSPEC_STACK; }
2542 | declspecs_nots setspecs absdcl_maybe_attribute
2544 POP_DECLSPEC_STACK; }
2547 /* The first parm, which must suck attributes from off the top of the parser
2550 declspecs_ts_nosa setspecs_fp parm_declarator maybe_attribute
2551 { $$ = build_tree_list (build_tree_list (current_declspecs,
2553 chainon ($4, all_prefix_attributes));
2554 POP_DECLSPEC_STACK; }
2555 | declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
2556 { $$ = build_tree_list (build_tree_list (current_declspecs,
2558 chainon ($4, all_prefix_attributes));
2559 POP_DECLSPEC_STACK; }
2560 | declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
2562 POP_DECLSPEC_STACK; }
2563 | declspecs_nots_nosa setspecs_fp notype_declarator maybe_attribute
2564 { $$ = build_tree_list (build_tree_list (current_declspecs,
2566 chainon ($4, all_prefix_attributes));
2567 POP_DECLSPEC_STACK; }
2569 | declspecs_nots_nosa setspecs_fp absdcl_maybe_attribute
2571 POP_DECLSPEC_STACK; }
2576 { prefix_attributes = chainon (prefix_attributes, $<ttype>-2);
2577 all_prefix_attributes = prefix_attributes; }
2580 /* This is used in a function definition
2581 where either a parmlist or an identifier list is ok.
2582 Its value is a list of ..._TYPE nodes or a list of identifiers. */
2583 parmlist_or_identifiers:
2585 clear_parm_order ();
2586 declare_parm_level (1); }
2587 parmlist_or_identifiers_1
2589 parmlist_tags_warning ();
2590 poplevel (0, 0, 0); }
2593 parmlist_or_identifiers_1:
2597 for (t = $1; t; t = TREE_CHAIN (t))
2598 if (TREE_VALUE (t) == NULL_TREE)
2599 error ("`...' in old-style identifier list");
2600 $$ = tree_cons (NULL_TREE, NULL_TREE, $1); }
2603 /* A nonempty list of identifiers. */
2606 { $$ = build_tree_list (NULL_TREE, $1); }
2607 | identifiers ',' IDENTIFIER
2608 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2611 /* A nonempty list of identifiers, including typenames. */
2612 identifiers_or_typenames:
2614 { $$ = build_tree_list (NULL_TREE, $1); }
2615 | identifiers_or_typenames ',' identifier
2616 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2621 { $$ = SAVE_WARN_FLAGS();
2623 warn_pointer_arith = 0; }
2627 /* Objective-C productions. */
2637 if (objc_implementation_context)
2639 finish_class (objc_implementation_context);
2640 objc_ivar_chain = NULL_TREE;
2641 objc_implementation_context = NULL_TREE;
2644 warning ("`@end' must appear in an implementation context");
2648 /* A nonempty list of identifiers. */
2651 { $$ = build_tree_list (NULL_TREE, $1); }
2652 | identifier_list ',' identifier
2653 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2657 CLASS identifier_list ';'
2659 objc_declare_class ($2);
2663 ALIAS identifier identifier ';'
2665 objc_declare_alias ($2, $3);
2669 INTERFACE identifier protocolrefs '{'
2671 objc_interface_context = objc_ivar_context
2672 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2673 objc_public_flag = 0;
2677 continue_class (objc_interface_context);
2682 finish_class (objc_interface_context);
2683 objc_interface_context = NULL_TREE;
2686 | INTERFACE identifier protocolrefs
2688 objc_interface_context
2689 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2690 continue_class (objc_interface_context);
2695 finish_class (objc_interface_context);
2696 objc_interface_context = NULL_TREE;
2699 | INTERFACE identifier ':' identifier protocolrefs '{'
2701 objc_interface_context = objc_ivar_context
2702 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2703 objc_public_flag = 0;
2707 continue_class (objc_interface_context);
2712 finish_class (objc_interface_context);
2713 objc_interface_context = NULL_TREE;
2716 | INTERFACE identifier ':' identifier protocolrefs
2718 objc_interface_context
2719 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2720 continue_class (objc_interface_context);
2725 finish_class (objc_interface_context);
2726 objc_interface_context = NULL_TREE;
2729 | IMPLEMENTATION identifier '{'
2731 objc_implementation_context = objc_ivar_context
2732 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2733 objc_public_flag = 0;
2738 = continue_class (objc_implementation_context);
2741 | IMPLEMENTATION identifier
2743 objc_implementation_context
2744 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2746 = continue_class (objc_implementation_context);
2749 | IMPLEMENTATION identifier ':' identifier '{'
2751 objc_implementation_context = objc_ivar_context
2752 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2753 objc_public_flag = 0;
2758 = continue_class (objc_implementation_context);
2761 | IMPLEMENTATION identifier ':' identifier
2763 objc_implementation_context
2764 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2766 = continue_class (objc_implementation_context);
2769 | INTERFACE identifier '(' identifier ')' protocolrefs
2771 objc_interface_context
2772 = start_class (CATEGORY_INTERFACE_TYPE, $2, $4, $6);
2773 continue_class (objc_interface_context);
2778 finish_class (objc_interface_context);
2779 objc_interface_context = NULL_TREE;
2782 | IMPLEMENTATION identifier '(' identifier ')'
2784 objc_implementation_context
2785 = start_class (CATEGORY_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2787 = continue_class (objc_implementation_context);
2792 PROTOCOL identifier protocolrefs
2794 objc_pq_context = 1;
2795 objc_interface_context
2796 = start_protocol(PROTOCOL_INTERFACE_TYPE, $2, $3);
2800 objc_pq_context = 0;
2801 finish_protocol(objc_interface_context);
2802 objc_interface_context = NULL_TREE;
2804 /* The @protocol forward-declaration production introduces a
2805 reduce/reduce conflict on ';', which should be resolved in
2806 favor of the production 'identifier_list -> identifier'. */
2807 | PROTOCOL identifier_list ';'
2809 objc_declare_protocols ($2);
2818 | non_empty_protocolrefs
2821 non_empty_protocolrefs:
2822 ARITHCOMPARE identifier_list ARITHCOMPARE
2824 if ($1 == LT_EXPR && $3 == GT_EXPR)
2832 ivar_decl_list visibility_spec ivar_decls
2837 PRIVATE { objc_public_flag = 2; }
2838 | PROTECTED { objc_public_flag = 0; }
2839 | PUBLIC { objc_public_flag = 1; }
2847 | ivar_decls ivar_decl ';'
2851 pedwarn ("extra semicolon in struct or union specified");
2856 /* There is a shift-reduce conflict here, because `components' may
2857 start with a `typename'. It happens that shifting (the default resolution)
2858 does the right thing, because it treats the `typename' as part of
2859 a `typed_typespecs'.
2861 It is possible that this same technique would allow the distinction
2862 between `notype_initdecls' and `initdecls' to be eliminated.
2863 But I am being cautious and not trying it. */
2866 declspecs_nosc_ts setspecs ivars
2868 POP_DECLSPEC_STACK; }
2869 | declspecs_nosc_nots setspecs ivars
2871 POP_DECLSPEC_STACK; }
2880 | ivars ',' maybe_resetattrs ivar_declarator
2886 $$ = add_instance_variable (objc_ivar_context,
2888 $1, current_declspecs,
2891 | declarator ':' expr_no_commas
2893 $$ = add_instance_variable (objc_ivar_context,
2895 $1, current_declspecs, $3);
2897 | ':' expr_no_commas
2899 $$ = add_instance_variable (objc_ivar_context,
2902 current_declspecs, $2);
2908 { objc_inherit_code = CLASS_METHOD_DECL; }
2910 { objc_inherit_code = INSTANCE_METHOD_DECL; }
2916 objc_pq_context = 1;
2917 if (!objc_implementation_context)
2918 fatal_error ("method definition not in class context");
2922 objc_pq_context = 0;
2923 if (objc_inherit_code == CLASS_METHOD_DECL)
2924 add_class_method (objc_implementation_context, $3);
2926 add_instance_method (objc_implementation_context, $3);
2927 start_method_def ($3);
2931 continue_method_def ();
2935 finish_method_def ();
2939 /* the reason for the strange actions in this rule
2940 is so that notype_initdecls when reached via datadef
2941 can find a valid list of type and sc specs in $0. */
2945 | {$<ttype>$ = NULL_TREE; } methodprotolist2
2948 methodprotolist2: /* eliminates a shift/reduce conflict */
2951 | methodprotolist2 methodproto
2952 | methodprotolist2 {$<ttype>$ = NULL_TREE; } datadef
2963 /* Remember protocol qualifiers in prototypes. */
2964 objc_pq_context = 1;
2968 /* Forget protocol qualifiers here. */
2969 objc_pq_context = 0;
2970 if (objc_inherit_code == CLASS_METHOD_DECL)
2971 add_class_method (objc_interface_context, $3);
2973 add_instance_method (objc_interface_context, $3);
2979 '(' typename ')' unaryselector
2981 $$ = build_method_decl (objc_inherit_code, $2, $4, NULL_TREE);
2986 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, NULL_TREE);
2989 | '(' typename ')' keywordselector optparmlist
2991 $$ = build_method_decl (objc_inherit_code, $2, $4, $5);
2994 | keywordselector optparmlist
2996 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, $2);
3000 /* "optarglist" assumes that start_method_def has already been called...
3001 if it is not, the "xdecls" will not be placed in the proper scope */
3008 /* to get around the following situation: "int foo (int a) int b; {}" that
3009 is synthesized when parsing "- a:a b:b; id c; id d; { ... }" */
3024 declspecs_ts setspecs myparms ';'
3025 { POP_DECLSPEC_STACK; }
3027 { shadow_tag ($1); }
3028 | declspecs_nots ';'
3029 { pedwarn ("empty declaration"); }
3034 { push_parm_decl ($1); }
3035 | myparms ',' myparm
3036 { push_parm_decl ($3); }
3039 /* A single parameter declaration or parameter type name,
3040 as found in a parmlist. DOES NOT ALLOW AN INITIALIZER OR ASMSPEC */
3043 parm_declarator maybe_attribute
3044 { $$ = build_tree_list (build_tree_list (current_declspecs,
3046 chainon ($2, all_prefix_attributes)); }
3047 | notype_declarator maybe_attribute
3048 { $$ = build_tree_list (build_tree_list (current_declspecs,
3050 chainon ($2, all_prefix_attributes)); }
3051 | absdcl_maybe_attribute
3062 /* oh what a kludge! */
3063 $$ = objc_ellipsis_node;
3071 /* returns a tree list node generated by get_parm_info */
3084 | keywordselector keyworddecl
3086 $$ = chainon ($1, $2);
3099 ENUM | STRUCT | UNION | IF | ELSE | WHILE | DO | FOR
3100 | SWITCH | CASE | DEFAULT | BREAK | CONTINUE | RETURN
3101 | GOTO | ASM_KEYWORD | SIZEOF | TYPEOF | ALIGNOF
3102 | TYPESPEC | TYPE_QUAL
3106 selector ':' '(' typename ')' identifier
3108 $$ = build_keyword_decl ($1, $4, $6);
3111 | selector ':' identifier
3113 $$ = build_keyword_decl ($1, NULL_TREE, $3);
3116 | ':' '(' typename ')' identifier
3118 $$ = build_keyword_decl (NULL_TREE, $3, $5);
3123 $$ = build_keyword_decl (NULL_TREE, NULL_TREE, $2);
3134 | keywordarglist keywordarg
3136 $$ = chainon ($1, $2);
3144 if (TREE_CHAIN ($1) == NULL_TREE)
3145 /* just return the expr., remove a level of indirection */
3146 $$ = TREE_VALUE ($1);
3148 /* we have a comma expr., we will collapse later */
3154 selector ':' keywordexpr
3156 $$ = build_tree_list ($1, $3);
3160 $$ = build_tree_list (NULL_TREE, $2);
3168 $$ = get_class_reference ($1);
3174 { objc_receiver_context = 1; }
3176 { objc_receiver_context = 0; }
3179 $$ = build_tree_list ($3, $5);
3190 | keywordnamelist keywordname
3192 $$ = chainon ($1, $2);
3199 $$ = build_tree_list ($1, NULL_TREE);
3203 $$ = build_tree_list (NULL_TREE, NULL_TREE);
3208 SELECTOR '(' selectorarg ')'
3215 PROTOCOL '(' identifier ')'
3221 /* extension to support C-structures in the archiver */
3224 ENCODE '(' typename ')'
3226 $$ = groktypename ($3);
3233 /* yylex() is a thin wrapper around c_lex(), all it does is translate
3234 cpplib.h's token codes into yacc's token codes. */
3236 static enum cpp_ttype last_token;
3238 /* The reserved keyword table. */
3242 ENUM_BITFIELD(rid) rid : 16;
3243 unsigned int disable : 16;
3246 /* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
3248 #define D_TRAD 0x01 /* not in traditional C */
3249 #define D_C89 0x02 /* not in C89 */
3250 #define D_EXT 0x04 /* GCC extension */
3251 #define D_EXT89 0x08 /* GCC extension incorporated in C99 */
3252 #define D_OBJC 0x10 /* Objective C only */
3254 static const struct resword reswords[] =
3256 { "_Bool", RID_BOOL, 0 },
3257 { "_Complex", RID_COMPLEX, 0 },
3258 { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
3259 { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
3260 { "__alignof", RID_ALIGNOF, 0 },
3261 { "__alignof__", RID_ALIGNOF, 0 },
3262 { "__asm", RID_ASM, 0 },
3263 { "__asm__", RID_ASM, 0 },
3264 { "__attribute", RID_ATTRIBUTE, 0 },
3265 { "__attribute__", RID_ATTRIBUTE, 0 },
3266 { "__bounded", RID_BOUNDED, 0 },
3267 { "__bounded__", RID_BOUNDED, 0 },
3268 { "__builtin_choose_expr", RID_CHOOSE_EXPR, 0 },
3269 { "__builtin_types_compatible_p", RID_TYPES_COMPATIBLE_P, 0 },
3270 { "__builtin_va_arg", RID_VA_ARG, 0 },
3271 { "__complex", RID_COMPLEX, 0 },
3272 { "__complex__", RID_COMPLEX, 0 },
3273 { "__const", RID_CONST, 0 },
3274 { "__const__", RID_CONST, 0 },
3275 { "__extension__", RID_EXTENSION, 0 },
3276 { "__func__", RID_C99_FUNCTION_NAME, 0 },
3277 { "__imag", RID_IMAGPART, 0 },
3278 { "__imag__", RID_IMAGPART, 0 },
3279 { "__inline", RID_INLINE, 0 },
3280 { "__inline__", RID_INLINE, 0 },
3281 { "__label__", RID_LABEL, 0 },
3282 { "__ptrbase", RID_PTRBASE, 0 },
3283 { "__ptrbase__", RID_PTRBASE, 0 },
3284 { "__ptrextent", RID_PTREXTENT, 0 },
3285 { "__ptrextent__", RID_PTREXTENT, 0 },
3286 { "__ptrvalue", RID_PTRVALUE, 0 },
3287 { "__ptrvalue__", RID_PTRVALUE, 0 },
3288 { "__real", RID_REALPART, 0 },
3289 { "__real__", RID_REALPART, 0 },
3290 { "__restrict", RID_RESTRICT, 0 },
3291 { "__restrict__", RID_RESTRICT, 0 },
3292 { "__signed", RID_SIGNED, 0 },
3293 { "__signed__", RID_SIGNED, 0 },
3294 { "__typeof", RID_TYPEOF, 0 },
3295 { "__typeof__", RID_TYPEOF, 0 },
3296 { "__unbounded", RID_UNBOUNDED, 0 },
3297 { "__unbounded__", RID_UNBOUNDED, 0 },
3298 { "__volatile", RID_VOLATILE, 0 },
3299 { "__volatile__", RID_VOLATILE, 0 },
3300 { "asm", RID_ASM, D_EXT },
3301 { "auto", RID_AUTO, 0 },
3302 { "break", RID_BREAK, 0 },
3303 { "case", RID_CASE, 0 },
3304 { "char", RID_CHAR, 0 },
3305 { "const", RID_CONST, D_TRAD },
3306 { "continue", RID_CONTINUE, 0 },
3307 { "default", RID_DEFAULT, 0 },
3308 { "do", RID_DO, 0 },
3309 { "double", RID_DOUBLE, 0 },
3310 { "else", RID_ELSE, 0 },
3311 { "enum", RID_ENUM, 0 },
3312 { "extern", RID_EXTERN, 0 },
3313 { "float", RID_FLOAT, 0 },
3314 { "for", RID_FOR, 0 },
3315 { "goto", RID_GOTO, 0 },
3316 { "if", RID_IF, 0 },
3317 { "inline", RID_INLINE, D_TRAD|D_EXT89 },
3318 { "int", RID_INT, 0 },
3319 { "long", RID_LONG, 0 },
3320 { "register", RID_REGISTER, 0 },
3321 { "restrict", RID_RESTRICT, D_TRAD|D_C89 },
3322 { "return", RID_RETURN, 0 },
3323 { "short", RID_SHORT, 0 },
3324 { "signed", RID_SIGNED, D_TRAD },
3325 { "sizeof", RID_SIZEOF, 0 },
3326 { "static", RID_STATIC, 0 },
3327 { "struct", RID_STRUCT, 0 },
3328 { "switch", RID_SWITCH, 0 },
3329 { "typedef", RID_TYPEDEF, 0 },
3330 { "typeof", RID_TYPEOF, D_TRAD|D_EXT },
3331 { "union", RID_UNION, 0 },
3332 { "unsigned", RID_UNSIGNED, 0 },
3333 { "void", RID_VOID, 0 },
3334 { "volatile", RID_VOLATILE, D_TRAD },
3335 { "while", RID_WHILE, 0 },
3337 { "id", RID_ID, D_OBJC },
3339 /* These objc keywords are recognized only immediately after
3341 { "class", RID_AT_CLASS, D_OBJC },
3342 { "compatibility_alias", RID_AT_ALIAS, D_OBJC },
3343 { "defs", RID_AT_DEFS, D_OBJC },
3344 { "encode", RID_AT_ENCODE, D_OBJC },
3345 { "end", RID_AT_END, D_OBJC },
3346 { "implementation", RID_AT_IMPLEMENTATION, D_OBJC },
3347 { "interface", RID_AT_INTERFACE, D_OBJC },
3348 { "private", RID_AT_PRIVATE, D_OBJC },
3349 { "protected", RID_AT_PROTECTED, D_OBJC },
3350 { "protocol", RID_AT_PROTOCOL, D_OBJC },
3351 { "public", RID_AT_PUBLIC, D_OBJC },
3352 { "selector", RID_AT_SELECTOR, D_OBJC },
3354 /* These are recognized only in protocol-qualifier context
3356 { "bycopy", RID_BYCOPY, D_OBJC },
3357 { "byref", RID_BYREF, D_OBJC },
3358 { "in", RID_IN, D_OBJC },
3359 { "inout", RID_INOUT, D_OBJC },
3360 { "oneway", RID_ONEWAY, D_OBJC },
3361 { "out", RID_OUT, D_OBJC },
3364 #define N_reswords (sizeof reswords / sizeof (struct resword))
3366 /* Table mapping from RID_* constants to yacc token numbers.
3367 Unfortunately we have to have entries for all the keywords in all
3369 static const short rid_to_yy[RID_MAX] =
3371 /* RID_STATIC */ SCSPEC,
3372 /* RID_UNSIGNED */ TYPESPEC,
3373 /* RID_LONG */ TYPESPEC,
3374 /* RID_CONST */ TYPE_QUAL,
3375 /* RID_EXTERN */ SCSPEC,
3376 /* RID_REGISTER */ SCSPEC,
3377 /* RID_TYPEDEF */ SCSPEC,
3378 /* RID_SHORT */ TYPESPEC,
3379 /* RID_INLINE */ SCSPEC,
3380 /* RID_VOLATILE */ TYPE_QUAL,
3381 /* RID_SIGNED */ TYPESPEC,
3382 /* RID_AUTO */ SCSPEC,
3383 /* RID_RESTRICT */ TYPE_QUAL,
3386 /* RID_BOUNDED */ TYPE_QUAL,
3387 /* RID_UNBOUNDED */ TYPE_QUAL,
3388 /* RID_COMPLEX */ TYPESPEC,
3392 /* RID_VIRTUAL */ 0,
3393 /* RID_EXPLICIT */ 0,
3395 /* RID_MUTABLE */ 0,
3398 /* RID_IN */ TYPE_QUAL,
3399 /* RID_OUT */ TYPE_QUAL,
3400 /* RID_INOUT */ TYPE_QUAL,
3401 /* RID_BYCOPY */ TYPE_QUAL,
3402 /* RID_BYREF */ TYPE_QUAL,
3403 /* RID_ONEWAY */ TYPE_QUAL,
3406 /* RID_INT */ TYPESPEC,
3407 /* RID_CHAR */ TYPESPEC,
3408 /* RID_FLOAT */ TYPESPEC,
3409 /* RID_DOUBLE */ TYPESPEC,
3410 /* RID_VOID */ TYPESPEC,
3411 /* RID_ENUM */ ENUM,
3412 /* RID_STRUCT */ STRUCT,
3413 /* RID_UNION */ UNION,
3415 /* RID_ELSE */ ELSE,
3416 /* RID_WHILE */ WHILE,
3419 /* RID_SWITCH */ SWITCH,
3420 /* RID_CASE */ CASE,
3421 /* RID_DEFAULT */ DEFAULT,
3422 /* RID_BREAK */ BREAK,
3423 /* RID_CONTINUE */ CONTINUE,
3424 /* RID_RETURN */ RETURN,
3425 /* RID_GOTO */ GOTO,
3426 /* RID_SIZEOF */ SIZEOF,
3429 /* RID_ASM */ ASM_KEYWORD,
3430 /* RID_TYPEOF */ TYPEOF,
3431 /* RID_ALIGNOF */ ALIGNOF,
3432 /* RID_ATTRIBUTE */ ATTRIBUTE,
3433 /* RID_VA_ARG */ VA_ARG,
3434 /* RID_EXTENSION */ EXTENSION,
3435 /* RID_IMAGPART */ IMAGPART,
3436 /* RID_REALPART */ REALPART,
3437 /* RID_LABEL */ LABEL,
3438 /* RID_PTRBASE */ PTR_BASE,
3439 /* RID_PTREXTENT */ PTR_EXTENT,
3440 /* RID_PTRVALUE */ PTR_VALUE,
3442 /* RID_CHOOSE_EXPR */ CHOOSE_EXPR,
3443 /* RID_TYPES_COMPATIBLE_P */ TYPES_COMPATIBLE_P,
3445 /* RID_FUNCTION_NAME */ STRING_FUNC_NAME,
3446 /* RID_PRETTY_FUNCTION_NAME */ STRING_FUNC_NAME,
3447 /* RID_C99_FUNCTION_NAME */ VAR_FUNC_NAME,
3450 /* RID_BOOL */ TYPESPEC,
3454 /* RID_PRIVATE */ 0,
3455 /* RID_PROTECTED */ 0,
3456 /* RID_TEMPLATE */ 0,
3461 /* RID_NAMESPACE */ 0,
3463 /* RID_OPERATOR */ 0,
3468 /* RID_TYPENAME */ 0,
3473 /* RID_CONSTCAST */ 0,
3474 /* RID_DYNCAST */ 0,
3475 /* RID_REINTCAST */ 0,
3476 /* RID_STATCAST */ 0,
3478 /* alternate spellings */
3492 /* RID_ID */ OBJECTNAME,
3493 /* RID_AT_ENCODE */ ENCODE,
3494 /* RID_AT_END */ END,
3495 /* RID_AT_CLASS */ CLASS,
3496 /* RID_AT_ALIAS */ ALIAS,
3497 /* RID_AT_DEFS */ DEFS,
3498 /* RID_AT_PRIVATE */ PRIVATE,
3499 /* RID_AT_PROTECTED */ PROTECTED,
3500 /* RID_AT_PUBLIC */ PUBLIC,
3501 /* RID_AT_PROTOCOL */ PROTOCOL,
3502 /* RID_AT_SELECTOR */ SELECTOR,
3503 /* RID_AT_INTERFACE */ INTERFACE,
3504 /* RID_AT_IMPLEMENTATION */ IMPLEMENTATION
3512 int mask = (flag_isoc99 ? 0 : D_C89)
3513 | (flag_traditional ? D_TRAD : 0)
3514 | (flag_no_asm ? (flag_isoc99 ? D_EXT : D_EXT|D_EXT89) : 0);
3516 if (c_language != clk_objective_c)
3519 /* It is not necessary to register ridpointers as a GC root, because
3520 all the trees it points to are permanently interned in the
3521 get_identifier hash anyway. */
3522 ridpointers = (tree *) xcalloc ((int) RID_MAX, sizeof (tree));
3523 for (i = 0; i < N_reswords; i++)
3525 /* If a keyword is disabled, do not enter it into the table
3526 and so create a canonical spelling that isn't a keyword. */
3527 if (reswords[i].disable & mask)
3530 id = get_identifier (reswords[i].word);
3531 C_RID_CODE (id) = reswords[i].rid;
3532 C_IS_RESERVED_WORD (id) = 1;
3533 ridpointers [(int) reswords[i].rid] = id;
3537 #define NAME(type) cpp_type2name (type)
3543 const char *string = _(msgid);
3545 if (last_token == CPP_EOF)
3546 error ("%s at end of input", string);
3547 else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
3549 unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
3550 const char *const ell = (last_token == CPP_CHAR) ? "" : "L";
3551 if (val <= UCHAR_MAX && ISGRAPH (val))
3552 error ("%s before %s'%c'", string, ell, val);
3554 error ("%s before %s'\\x%x'", string, ell, val);
3556 else if (last_token == CPP_STRING
3557 || last_token == CPP_WSTRING)
3558 error ("%s before string constant", string);
3559 else if (last_token == CPP_NUMBER)
3560 error ("%s before numeric constant", string);
3561 else if (last_token == CPP_NAME)
3562 error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
3564 error ("%s before '%s' token", string, NAME(last_token));
3573 int objc_force_identifier = objc_need_raw_identifier;
3574 OBJC_NEED_RAW_IDENTIFIER (0);
3577 if (C_IS_RESERVED_WORD (yylval.ttype))
3579 enum rid rid_code = C_RID_CODE (yylval.ttype);
3582 /* Turn non-typedefed refs to "id" into plain identifiers; this
3583 allows constructs like "void foo(id id);" to work. */
3584 if (rid_code == RID_ID)
3586 decl = lookup_name (yylval.ttype);
3587 if (decl == NULL_TREE || TREE_CODE (decl) != TYPE_DECL)
3591 if (!OBJC_IS_AT_KEYWORD (rid_code)
3592 && (!OBJC_IS_PQ_KEYWORD (rid_code) || objc_pq_context))
3595 int yycode = rid_to_yy[(int) rid_code];
3596 if (yycode == STRING_FUNC_NAME)
3598 /* __FUNCTION__ and __PRETTY_FUNCTION__ get converted
3599 to string constants. */
3600 const char *name = fname_string (rid_code);
3602 yylval.ttype = build_string (strlen (name) + 1, name);
3603 C_ARTIFICIAL_STRING_P (yylval.ttype) = 1;
3604 last_token = CPP_STRING; /* so yyerror won't choke */
3608 /* Return the canonical spelling for this keyword. */
3609 yylval.ttype = ridpointers[(int) rid_code];
3614 decl = lookup_name (yylval.ttype);
3617 if (TREE_CODE (decl) == TYPE_DECL)
3623 tree objc_interface_decl = is_class_name (yylval.ttype);
3624 /* ObjC class names are in the same namespace as variables and
3625 typedefs, and hence are shadowed by local declarations. */
3626 if (objc_interface_decl
3627 && (global_bindings_p ()
3628 || (!objc_force_identifier && !decl)))
3630 yylval.ttype = objc_interface_decl;
3644 last_token = c_lex (&yylval.ttype);
3647 case CPP_EQ: return '=';
3648 case CPP_NOT: return '!';
3649 case CPP_GREATER: yylval.code = GT_EXPR; return ARITHCOMPARE;
3650 case CPP_LESS: yylval.code = LT_EXPR; return ARITHCOMPARE;
3651 case CPP_PLUS: yylval.code = PLUS_EXPR; return '+';
3652 case CPP_MINUS: yylval.code = MINUS_EXPR; return '-';
3653 case CPP_MULT: yylval.code = MULT_EXPR; return '*';
3654 case CPP_DIV: yylval.code = TRUNC_DIV_EXPR; return '/';
3655 case CPP_MOD: yylval.code = TRUNC_MOD_EXPR; return '%';
3656 case CPP_AND: yylval.code = BIT_AND_EXPR; return '&';
3657 case CPP_OR: yylval.code = BIT_IOR_EXPR; return '|';
3658 case CPP_XOR: yylval.code = BIT_XOR_EXPR; return '^';
3659 case CPP_RSHIFT: yylval.code = RSHIFT_EXPR; return RSHIFT;
3660 case CPP_LSHIFT: yylval.code = LSHIFT_EXPR; return LSHIFT;
3662 case CPP_COMPL: return '~';
3663 case CPP_AND_AND: return ANDAND;
3664 case CPP_OR_OR: return OROR;
3665 case CPP_QUERY: return '?';
3666 case CPP_OPEN_PAREN: return '(';
3667 case CPP_EQ_EQ: yylval.code = EQ_EXPR; return EQCOMPARE;
3668 case CPP_NOT_EQ: yylval.code = NE_EXPR; return EQCOMPARE;
3669 case CPP_GREATER_EQ:yylval.code = GE_EXPR; return ARITHCOMPARE;
3670 case CPP_LESS_EQ: yylval.code = LE_EXPR; return ARITHCOMPARE;
3672 case CPP_PLUS_EQ: yylval.code = PLUS_EXPR; return ASSIGN;
3673 case CPP_MINUS_EQ: yylval.code = MINUS_EXPR; return ASSIGN;
3674 case CPP_MULT_EQ: yylval.code = MULT_EXPR; return ASSIGN;
3675 case CPP_DIV_EQ: yylval.code = TRUNC_DIV_EXPR; return ASSIGN;
3676 case CPP_MOD_EQ: yylval.code = TRUNC_MOD_EXPR; return ASSIGN;
3677 case CPP_AND_EQ: yylval.code = BIT_AND_EXPR; return ASSIGN;
3678 case CPP_OR_EQ: yylval.code = BIT_IOR_EXPR; return ASSIGN;
3679 case CPP_XOR_EQ: yylval.code = BIT_XOR_EXPR; return ASSIGN;
3680 case CPP_RSHIFT_EQ: yylval.code = RSHIFT_EXPR; return ASSIGN;
3681 case CPP_LSHIFT_EQ: yylval.code = LSHIFT_EXPR; return ASSIGN;
3683 case CPP_OPEN_SQUARE: return '[';
3684 case CPP_CLOSE_SQUARE: return ']';
3685 case CPP_OPEN_BRACE: return '{';
3686 case CPP_CLOSE_BRACE: return '}';
3687 case CPP_ELLIPSIS: return ELLIPSIS;
3689 case CPP_PLUS_PLUS: return PLUSPLUS;
3690 case CPP_MINUS_MINUS: return MINUSMINUS;
3691 case CPP_DEREF: return POINTSAT;
3692 case CPP_DOT: return '.';
3694 /* The following tokens may affect the interpretation of any
3695 identifiers following, if doing Objective-C. */
3696 case CPP_COLON: OBJC_NEED_RAW_IDENTIFIER (0); return ':';
3697 case CPP_COMMA: OBJC_NEED_RAW_IDENTIFIER (0); return ',';
3698 case CPP_CLOSE_PAREN: OBJC_NEED_RAW_IDENTIFIER (0); return ')';
3699 case CPP_SEMICOLON: OBJC_NEED_RAW_IDENTIFIER (0); return ';';
3705 return yylexname ();
3716 /* This token is Objective-C specific. It gives the next token
3717 special significance. */
3722 enum cpp_ttype after_at_type;
3724 after_at_type = c_lex (&after_at);
3726 if (after_at_type == CPP_NAME
3727 && C_IS_RESERVED_WORD (after_at)
3728 && OBJC_IS_AT_KEYWORD (C_RID_CODE (after_at)))
3730 yylval.ttype = after_at;
3731 last_token = after_at_type;
3732 return rid_to_yy [(int) C_RID_CODE (after_at)];
3734 _cpp_backup_tokens (parse_in, 1);
3739 /* These tokens are C++ specific (and will not be generated
3740 in C mode, but let's be cautious). */
3742 case CPP_DEREF_STAR:
3748 /* These tokens should not survive translation phase 4. */
3751 error ("syntax error at '%s' token", NAME(last_token));
3764 timevar_push (TV_LEX);
3766 timevar_pop (TV_LEX);
3770 /* Sets the value of the 'yydebug' variable to VALUE.
3771 This is a function so we don't have to have YYDEBUG defined
3772 in order to build the compiler. */
3775 c_set_yydebug (value)
3781 warning ("YYDEBUG not defined");
3785 /* Function used when yydebug is set, to print a token in more detail. */
3788 yyprint (file, yychar, yyl)
3795 fprintf (file, " [%s]", NAME(last_token));
3805 if (IDENTIFIER_POINTER (t))
3806 fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
3810 fprintf (file, " %s", GET_MODE_NAME (TYPE_MODE (TREE_TYPE (t))));
3811 if (TREE_CODE (t) == INTEGER_CST)
3813 #if HOST_BITS_PER_WIDE_INT == 64
3814 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
3817 #if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
3824 #if HOST_BITS_PER_WIDE_INT != HOST_BITS_PER_INT
3830 TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
3835 /* This is not the ideal place to put these, but we have to get them out
3836 of c-lex.c because cp/lex.c has its own versions. */
3838 /* Return something to represent absolute declarators containing a *.
3839 TARGET is the absolute declarator that the * contains.
3840 TYPE_QUALS_ATTRS is a list of modifiers such as const or volatile
3841 to apply to the pointer type, represented as identifiers, possible mixed
3844 We return an INDIRECT_REF whose "contents" are TARGET (inside a TREE_LIST,
3845 if attributes are present) and whose type is the modifier list. */
3848 make_pointer_declarator (type_quals_attrs, target)
3849 tree type_quals_attrs, target;
3852 tree itarget = target;
3853 split_specs_attrs (type_quals_attrs, &quals, &attrs);
3854 if (attrs != NULL_TREE)
3855 itarget = tree_cons (attrs, target, NULL_TREE);
3856 return build1 (INDIRECT_REF, quals, itarget);