1 /* YACC parser for C syntax and for Objective C. -*-c-*-
2 Copyright (C) 1987, 88, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
20 /* This file defines the grammar of C and that of Objective C.
21 ifobjc ... end ifobjc conditionals contain code for Objective C only.
22 ifc ... end ifc conditionals contain code for C only.
23 Sed commands in Makefile.in are used to convert this file into
24 c-parse.y and into objc-parse.y. */
26 /* To whomever it may concern: I have heard that such a thing was once
27 written by AT&T, but I have never seen it. */
35 /* These are the 23 conflicts you should get in parse.output;
36 the state numbers may vary if minor changes in the grammar are made.
38 State 42 contains 1 shift/reduce conflict. (Two ways to parse ATTRIBUTE.)
39 State 44 contains 1 shift/reduce conflict. (Two ways to recover from error.)
40 State 103 contains 1 shift/reduce conflict. (Two ways to recover from error.)
41 State 110 contains 1 shift/reduce conflict. (Two ways to parse ATTRIBUTE.)
42 State 111 contains 1 shift/reduce conflict. (Two ways to recover from error.)
43 State 115 contains 1 shift/reduce conflict. (Two ways to recover from error.)
44 State 132 contains 1 shift/reduce conflict. (See comment at component_decl.)
45 State 180 contains 1 shift/reduce conflict. (Two ways to parse ATTRIBUTE.)
46 State 194 contains 2 shift/reduce conflict. (Four ways to parse this.)
47 State 202 contains 1 shift/reduce conflict. (Two ways to recover from error.)
48 State 214 contains 1 shift/reduce conflict. (Two ways to recover from error.)
49 State 220 contains 1 shift/reduce conflict. (Two ways to recover from error.)
50 State 304 contains 2 shift/reduce conflicts. (Four ways to parse this.)
51 State 335 contains 2 shift/reduce conflicts. (Four ways to parse this.)
52 State 347 contains 1 shift/reduce conflict. (Two ways to parse ATTRIBUTES.)
53 State 352 contains 1 shift/reduce conflict. (Two ways to parse ATTRIBUTES.)
54 State 383 contains 2 shift/reduce conflicts. (Four ways to parse this.)
55 State 434 contains 2 shift/reduce conflicts. (Four ways to parse this.) */
71 #ifdef MULTIBYTE_CHARS
80 /* Since parsers are distinct for each language, put the language string
83 char *language_string = "GNU Obj-C";
86 char *language_string = "GNU C";
95 /* Like YYERROR but do call yyerror. */
96 #define YYERROR1 { yyerror ("syntax error"); YYERROR; }
98 /* Cause the `yydebug' variable to be defined. */
104 %union {long itype; tree ttype; enum tree_code code;
105 char *filename; int lineno; }
107 /* All identifiers that are not reserved words
108 and are not declared typedefs in the current block */
111 /* All identifiers that are declared typedefs in the current block.
112 In some contexts, they are treated just like IDENTIFIER,
113 but they can also serve as typespecs in declarations. */
116 /* Reserved words that specify storage class.
117 yylval contains an IDENTIFIER_NODE which indicates which one. */
120 /* Reserved words that specify type.
121 yylval contains an IDENTIFIER_NODE which indicates which one. */
124 /* Reserved words that qualify type: "const" or "volatile".
125 yylval contains an IDENTIFIER_NODE which indicates which one. */
128 /* Character or numeric constants.
129 yylval is the node for the constant. */
132 /* String constants in raw form.
133 yylval is a STRING_CST node. */
136 /* "...", used for functions with variable arglists. */
139 /* the reserved words */
140 /* SCO include files test "ASM", so use something else. */
141 %token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
142 %token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
143 %token ATTRIBUTE EXTENSION LABEL
144 %token REALPART IMAGPART
146 /* Add precedence rules to solve dangling else s/r conflict */
150 /* Define the operator tokens and their precedences.
151 The value is an integer because, if used, it is the tree code
152 to use in the expression made from the operator. */
154 %right <code> ASSIGN '='
155 %right <code> '?' ':'
161 %left <code> EQCOMPARE
162 %left <code> ARITHCOMPARE
163 %left <code> LSHIFT RSHIFT
165 %left <code> '*' '/' '%'
166 %right <code> UNARY PLUSPLUS MINUSMINUS
168 %left <code> POINTSAT '.' '(' '['
170 /* The Objective-C keywords. These are included in C and in
171 Objective C, so that the token codes are the same in both. */
172 %token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
173 %token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
175 /* Objective-C string constants in raw form.
176 yylval is an OBJC_STRING_CST node. */
182 %type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
183 %type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
184 %type <ttype> typed_declspecs reserved_declspecs
185 %type <ttype> typed_typespecs reserved_typespecquals
186 %type <ttype> declmods typespec typespecqual_reserved
187 %type <ttype> SCSPEC TYPESPEC TYPE_QUAL nonempty_type_quals maybe_type_qual
188 %type <ttype> initdecls notype_initdecls initdcl notype_initdcl
189 %type <ttype> init maybeasm
190 %type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
191 %type <ttype> maybe_attribute attributes attribute attribute_list attrib
192 %type <ttype> any_word
194 %type <ttype> compstmt
196 %type <ttype> declarator
197 %type <ttype> notype_declarator after_type_declarator
198 %type <ttype> parm_declarator
200 %type <ttype> structsp component_decl_list component_decl_list2
201 %type <ttype> component_decl components component_declarator
202 %type <ttype> enumlist enumerator
203 %type <ttype> typename absdcl absdcl1 type_quals
204 %type <ttype> xexpr parms parm identifiers
206 %type <ttype> parmlist parmlist_1 parmlist_2
207 %type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
208 %type <ttype> identifiers_or_typenames
210 %type <itype> setspecs
212 %type <filename> save_filename
213 %type <lineno> save_lineno
216 /* the Objective-C nonterminals */
218 %type <ttype> ivar_decl_list ivar_decls ivar_decl ivars ivar_declarator
219 %type <ttype> methoddecl unaryselector keywordselector selector
220 %type <ttype> keyworddecl receiver objcmessageexpr messageargs
221 %type <ttype> keywordexpr keywordarglist keywordarg
222 %type <ttype> myparms myparm optparmlist reservedwords objcselectorexpr
223 %type <ttype> selectorarg keywordnamelist keywordname objcencodeexpr
224 %type <ttype> objc_string protocolrefs identifier_list objcprotocolexpr
225 %type <ttype> CLASSNAME OBJC_STRING OBJECTNAME
229 /* Number of statements (loosely speaking) seen so far. */
230 static int stmt_count;
232 /* Input file and line number of the end of the body of last simple_if;
233 used by the stmt-rule immediately after simple_if returns. */
234 static char *if_stmt_file;
235 static int if_stmt_line;
237 /* List of types and structure classes of the current declaration. */
238 static tree current_declspecs;
239 static tree prefix_attributes = NULL_TREE;
241 /* Stack of saved values of current_declspecs and prefix_attributes. */
242 static tree declspec_stack;
244 /* 1 if we explained undeclared var errors. */
245 static int undeclared_variable_notice;
248 /* Objective-C specific information */
250 tree objc_interface_context;
251 tree objc_implementation_context;
252 tree objc_method_context;
253 tree objc_ivar_chain;
254 tree objc_ivar_context;
255 enum tree_code objc_inherit_code;
256 int objc_receiver_context;
257 int objc_public_flag;
261 /* Tell yyparse how to print a token's value, if yydebug is set. */
263 #define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
264 extern void yyprint ();
270 pedwarn ("ANSI C forbids an empty source file");
275 /* In case there were missing closebraces,
276 get us back to the global binding level. */
277 while (! global_bindings_p ())
283 /* the reason for the strange actions in this rule
284 is so that notype_initdecls when reached via datadef
285 can find a valid list of type and sc specs in $0. */
288 {$<ttype>$ = NULL_TREE; } extdef
289 | extdefs {$<ttype>$ = NULL_TREE; } extdef
298 | ASM_KEYWORD '(' expr ')' ';'
300 if ((TREE_CODE ($3) == ADDR_EXPR
301 && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
302 || TREE_CODE ($3) == STRING_CST)
305 error ("argument of `asm' is not a constant string"); }
309 setspecs notype_initdecls ';'
311 error ("ANSI C forbids data definition with no type or storage class");
312 else if (!flag_traditional)
313 warning ("data definition has no type or storage class"); }
314 | declmods setspecs notype_initdecls ';'
316 | typed_declspecs setspecs initdecls ';'
319 { pedwarn ("empty declaration"); }
320 | typed_declspecs ';'
326 pedwarn ("ANSI C does not allow extra `;' outside of a function"); }
330 typed_declspecs setspecs declarator
331 { if (! start_function ($1, $3, prefix_attributes, 0))
333 reinit_parse_for_function (); }
335 { store_parm_decls (); }
337 { finish_function (0); }
338 | typed_declspecs setspecs declarator error
340 | declmods setspecs notype_declarator
341 { if (! start_function ($1, $3, prefix_attributes, 0))
343 reinit_parse_for_function (); }
345 { store_parm_decls (); }
347 { finish_function (0); }
348 | declmods setspecs notype_declarator error
350 | setspecs notype_declarator
351 { if (! start_function (NULL_TREE, $2, prefix_attributes, 0))
353 reinit_parse_for_function (); }
355 { store_parm_decls (); }
357 { finish_function (0); }
358 | setspecs notype_declarator error
374 { $$ = NEGATE_EXPR; }
376 { $$ = CONVERT_EXPR; }
378 { $$ = PREINCREMENT_EXPR; }
380 { $$ = PREDECREMENT_EXPR; }
382 { $$ = BIT_NOT_EXPR; }
384 { $$ = TRUTH_NOT_EXPR; }
387 expr: nonnull_exprlist
388 { $$ = build_compound_expr ($1); }
399 { $$ = build_tree_list (NULL_TREE, $1); }
400 | nonnull_exprlist ',' expr_no_commas
401 { chainon ($1, build_tree_list (NULL_TREE, $3)); }
406 | '*' cast_expr %prec UNARY
407 { $$ = build_indirect_ref ($2, "unary *"); }
408 /* __extension__ turns off -pedantic for following primary. */
410 { $<itype>1 = pedantic;
412 cast_expr %prec UNARY
414 pedantic = $<itype>1; }
415 | unop cast_expr %prec UNARY
416 { $$ = build_unary_op ($1, $2, 0);
417 overflow_warning ($$); }
418 /* Refer to the address of a label as a pointer. */
420 { tree label = lookup_label ($2);
422 pedwarn ("ANSI C forbids `&&'");
424 $$ = null_pointer_node;
427 TREE_USED (label) = 1;
428 $$ = build1 (ADDR_EXPR, ptr_type_node, label);
429 TREE_CONSTANT ($$) = 1;
432 /* This seems to be impossible on some machines, so let's turn it off.
433 You can use __builtin_next_arg to find the anonymous stack args.
435 { tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
436 $$ = error_mark_node;
437 if (TREE_VALUE (tree_last (types)) == void_type_node)
438 error ("`&...' used in function with fixed number of arguments");
442 pedwarn ("ANSI C forbids `&...'");
443 $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
444 $$ = build_unary_op (ADDR_EXPR, $$, 0);
447 | SIZEOF unary_expr %prec UNARY
448 { if (TREE_CODE ($2) == COMPONENT_REF
449 && DECL_BIT_FIELD (TREE_OPERAND ($2, 1)))
450 error ("`sizeof' applied to a bit-field");
451 $$ = c_sizeof (TREE_TYPE ($2)); }
452 | SIZEOF '(' typename ')' %prec HYPERUNARY
453 { $$ = c_sizeof (groktypename ($3)); }
454 | ALIGNOF unary_expr %prec UNARY
455 { $$ = c_alignof_expr ($2); }
456 | ALIGNOF '(' typename ')' %prec HYPERUNARY
457 { $$ = c_alignof (groktypename ($3)); }
458 | REALPART cast_expr %prec UNARY
459 { $$ = build_unary_op (REALPART_EXPR, $2, 0); }
460 | IMAGPART cast_expr %prec UNARY
461 { $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
466 | '(' typename ')' cast_expr %prec UNARY
467 { tree type = groktypename ($2);
468 $$ = build_c_cast (type, $4); }
469 | '(' typename ')' '{'
470 { start_init (NULL_TREE, NULL, 0);
471 $2 = groktypename ($2);
472 really_start_incremental_init ($2); }
473 initlist_maybe_comma '}' %prec UNARY
475 tree result = pop_init_level (0);
480 pedwarn ("ANSI C forbids constructor expressions");
481 if (TYPE_NAME (type) != 0)
483 if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
484 name = IDENTIFIER_POINTER (TYPE_NAME (type));
486 name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
491 if (TREE_CODE (type) == ARRAY_TYPE && TYPE_SIZE (type) == 0)
493 int failure = complete_array_type (type, $$, 1);
502 | expr_no_commas '+' expr_no_commas
503 { $$ = parser_build_binary_op ($2, $1, $3); }
504 | expr_no_commas '-' expr_no_commas
505 { $$ = parser_build_binary_op ($2, $1, $3); }
506 | expr_no_commas '*' expr_no_commas
507 { $$ = parser_build_binary_op ($2, $1, $3); }
508 | expr_no_commas '/' expr_no_commas
509 { $$ = parser_build_binary_op ($2, $1, $3); }
510 | expr_no_commas '%' expr_no_commas
511 { $$ = parser_build_binary_op ($2, $1, $3); }
512 | expr_no_commas LSHIFT expr_no_commas
513 { $$ = parser_build_binary_op ($2, $1, $3); }
514 | expr_no_commas RSHIFT expr_no_commas
515 { $$ = parser_build_binary_op ($2, $1, $3); }
516 | expr_no_commas ARITHCOMPARE expr_no_commas
517 { $$ = parser_build_binary_op ($2, $1, $3); }
518 | expr_no_commas EQCOMPARE expr_no_commas
519 { $$ = parser_build_binary_op ($2, $1, $3); }
520 | expr_no_commas '&' expr_no_commas
521 { $$ = parser_build_binary_op ($2, $1, $3); }
522 | expr_no_commas '|' expr_no_commas
523 { $$ = parser_build_binary_op ($2, $1, $3); }
524 | expr_no_commas '^' expr_no_commas
525 { $$ = parser_build_binary_op ($2, $1, $3); }
526 | expr_no_commas ANDAND expr_no_commas
527 { $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $3); }
528 | expr_no_commas OROR expr_no_commas
529 { $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $3); }
530 | expr_no_commas '?' xexpr ':' expr_no_commas
531 { $$ = build_conditional_expr ($1, $3, $5); }
532 | expr_no_commas '=' expr_no_commas
533 { $$ = build_modify_expr ($1, NOP_EXPR, $3);
534 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR); }
535 | expr_no_commas ASSIGN expr_no_commas
536 { $$ = build_modify_expr ($1, $2, $3);
537 /* This inhibits warnings in truthvalue_conversion. */
538 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK); }
545 if (!$$ || $$ == error_mark_node)
547 if (yychar == YYEMPTY)
554 if (objc_receiver_context
555 && ! (objc_receiver_context
556 && strcmp (IDENTIFIER_POINTER ($1), "super")))
557 /* we have a message to super */
558 $$ = get_super_receiver ();
559 else if (objc_method_context
560 && (decl = is_ivar (objc_ivar_chain, $1)))
562 if (is_private (decl))
563 $$ = error_mark_node;
565 $$ = build_ivar_reference ($1);
570 /* Ordinary implicit function declaration. */
571 $$ = implicitly_declare ($1);
572 assemble_external ($$);
576 else if (current_function_decl == 0)
578 error ("`%s' undeclared here (not in a function)",
579 IDENTIFIER_POINTER ($1));
580 $$ = error_mark_node;
587 if (objc_receiver_context
588 && ! strcmp (IDENTIFIER_POINTER ($1), "super"))
589 /* we have a message to super */
590 $$ = get_super_receiver ();
591 else if (objc_method_context
592 && (decl = is_ivar (objc_ivar_chain, $1)))
594 if (is_private (decl))
595 $$ = error_mark_node;
597 $$ = build_ivar_reference ($1);
602 if (IDENTIFIER_GLOBAL_VALUE ($1) != error_mark_node
603 || IDENTIFIER_ERROR_LOCUS ($1) != current_function_decl)
605 error ("`%s' undeclared (first use this function)",
606 IDENTIFIER_POINTER ($1));
608 if (! undeclared_variable_notice)
610 error ("(Each undeclared identifier is reported only once");
611 error ("for each function it appears in.)");
612 undeclared_variable_notice = 1;
615 $$ = error_mark_node;
616 /* Prevent repeated error messages. */
617 IDENTIFIER_GLOBAL_VALUE ($1) = error_mark_node;
618 IDENTIFIER_ERROR_LOCUS ($1) = current_function_decl;
622 else if (TREE_TYPE ($$) == error_mark_node)
623 $$ = error_mark_node;
624 else if (C_DECL_ANTICIPATED ($$))
626 /* The first time we see a build-in function used,
627 if it has not been declared. */
628 C_DECL_ANTICIPATED ($$) = 0;
629 if (yychar == YYEMPTY)
633 /* Omit the implicit declaration we
634 would ordinarily do, so we don't lose
635 the actual built in type.
636 But print a diagnostic for the mismatch. */
638 if (objc_method_context
639 && is_ivar (objc_ivar_chain, $1))
640 error ("Instance variable `%s' implicitly declared as function",
641 IDENTIFIER_POINTER (DECL_NAME ($$)));
644 if (TREE_CODE ($$) != FUNCTION_DECL)
645 error ("`%s' implicitly declared as function",
646 IDENTIFIER_POINTER (DECL_NAME ($$)));
647 else if ((TYPE_MODE (TREE_TYPE (TREE_TYPE ($$)))
648 != TYPE_MODE (integer_type_node))
649 && (TREE_TYPE (TREE_TYPE ($$))
651 pedwarn ("type mismatch in implicit declaration for built-in function `%s'",
652 IDENTIFIER_POINTER (DECL_NAME ($$)));
653 /* If it really returns void, change that to int. */
654 if (TREE_TYPE (TREE_TYPE ($$)) == void_type_node)
656 = build_function_type (integer_type_node,
657 TYPE_ARG_TYPES (TREE_TYPE ($$)));
660 pedwarn ("built-in function `%s' used without declaration",
661 IDENTIFIER_POINTER (DECL_NAME ($$)));
663 /* Do what we would ordinarily do when a fn is used. */
664 assemble_external ($$);
669 assemble_external ($$);
672 /* we have a definition - still check if iVariable */
674 if (!objc_receiver_context
675 || (objc_receiver_context
676 && strcmp (IDENTIFIER_POINTER ($1), "super")))
680 if (objc_method_context
681 && (decl = is_ivar (objc_ivar_chain, $1)))
683 if (IDENTIFIER_LOCAL_VALUE ($1))
684 warning ("local declaration of `%s' hides instance variable",
685 IDENTIFIER_POINTER ($1));
688 if (is_private (decl))
689 $$ = error_mark_node;
691 $$ = build_ivar_reference ($1);
695 else /* we have a message to super */
696 $$ = get_super_receiver ();
700 if (TREE_CODE ($$) == CONST_DECL)
702 $$ = DECL_INITIAL ($$);
703 /* This is to prevent an enum whose value is 0
704 from being considered a null pointer constant. */
705 $$ = build1 (NOP_EXPR, TREE_TYPE ($$), $$);
706 TREE_CONSTANT ($$) = 1;
711 { $$ = combine_strings ($1); }
713 { char class = TREE_CODE_CLASS (TREE_CODE ($2));
714 if (class == 'e' || class == '1'
715 || class == '2' || class == '<')
716 C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
719 { $$ = error_mark_node; }
721 { if (current_function_decl == 0)
723 error ("braced-group within expression allowed only inside a function");
726 /* We must force a BLOCK for this level
727 so that, if it is not expanded later,
728 there is a way to turn off the entire subtree of blocks
729 that are contained in it. */
731 push_iterator_stack ();
733 $<ttype>$ = expand_start_stmt_expr (); }
737 pedwarn ("ANSI C forbids braced-groups within expressions");
738 pop_iterator_stack ();
740 rtl_exp = expand_end_stmt_expr ($<ttype>2);
741 /* The statements have side effects, so the group does. */
742 TREE_SIDE_EFFECTS (rtl_exp) = 1;
744 if (TREE_CODE ($3) == BLOCK)
746 /* Make a BIND_EXPR for the BLOCK already made. */
747 $$ = build (BIND_EXPR, TREE_TYPE (rtl_exp),
748 NULL_TREE, rtl_exp, $3);
749 /* Remove the block from the tree at this point.
750 It gets put back at the proper place
751 when the BIND_EXPR is expanded. */
757 | primary '(' exprlist ')' %prec '.'
758 { $$ = build_function_call ($1, $3); }
759 | primary '[' expr ']' %prec '.'
760 { $$ = build_array_ref ($1, $3); }
761 | primary '.' identifier
764 if (doing_objc_thang)
766 if (is_public ($1, $3))
767 $$ = build_component_ref ($1, $3);
769 $$ = error_mark_node;
773 $$ = build_component_ref ($1, $3);
775 | primary POINTSAT identifier
777 tree expr = build_indirect_ref ($1, "->");
780 if (doing_objc_thang)
782 if (is_public (expr, $3))
783 $$ = build_component_ref (expr, $3);
785 $$ = error_mark_node;
789 $$ = build_component_ref (expr, $3);
792 { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
794 { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
797 { $$ = build_message_expr ($1); }
799 { $$ = build_selector_expr ($1); }
801 { $$ = build_protocol_expr ($1); }
803 { $$ = build_encode_expr ($1); }
805 { $$ = build_objc_string_object ($1); }
809 /* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
813 { $$ = chainon ($1, $2); }
817 /* Produces an OBJC_STRING_CST with prehaps more OBJC_STRING_CSTs chained
821 | objc_string OBJC_STRING
822 { $$ = chainon ($1, $2); }
830 /* ... is used here to indicate a varargs function. */
833 pedwarn ("ANSI C does not permit use of `varargs.h'"); }
836 /* The following are analogous to lineno_decl, decls and decl
837 except that they do not allow nested functions.
838 They are used for old-style parm decls. */
840 save_filename save_lineno datadecl
847 | datadecls lineno_datadecl
848 | lineno_datadecl errstmt
852 typed_declspecs setspecs initdecls ';'
853 { current_declspecs = TREE_VALUE (declspec_stack);
854 prefix_attributes = TREE_PURPOSE (declspec_stack);
855 declspec_stack = TREE_CHAIN (declspec_stack);
856 resume_momentary ($2); }
857 | declmods setspecs notype_initdecls ';'
858 { current_declspecs = TREE_VALUE (declspec_stack);
859 prefix_attributes = TREE_PURPOSE (declspec_stack);
860 declspec_stack = TREE_CHAIN (declspec_stack);
861 resume_momentary ($2); }
862 | typed_declspecs ';'
863 { shadow_tag_warned ($1, 1);
864 pedwarn ("empty declaration"); }
866 { pedwarn ("empty declaration"); }
869 /* This combination which saves a lineno before a decl
870 is the normal thing to use, rather than decl itself.
871 This is to avoid shift/reduce conflicts in contexts
872 where statement labels are allowed. */
874 save_filename save_lineno decl
882 | lineno_decl errstmt
885 /* records the type and storage class specs to use for processing
886 the declarators that follow.
887 Maintains a stack of outer-level values of current_declspecs,
888 for the sake of parm declarations nested in function declarators. */
889 setspecs: /* empty */
890 { $$ = suspend_momentary ();
891 pending_xref_error ();
892 declspec_stack = tree_cons (prefix_attributes,
895 current_declspecs = $<ttype>0;
896 prefix_attributes = NULL_TREE; }
899 setattrs: /* empty */
900 { prefix_attributes = chainon (prefix_attributes, $<ttype>0); }
904 typed_declspecs setspecs initdecls ';'
905 { current_declspecs = TREE_VALUE (declspec_stack);
906 prefix_attributes = TREE_PURPOSE (declspec_stack);
907 declspec_stack = TREE_CHAIN (declspec_stack);
908 resume_momentary ($2); }
909 | declmods setspecs notype_initdecls ';'
910 { current_declspecs = TREE_VALUE (declspec_stack);
911 prefix_attributes = TREE_PURPOSE (declspec_stack);
912 declspec_stack = TREE_CHAIN (declspec_stack);
913 resume_momentary ($2); }
914 | typed_declspecs setspecs nested_function
915 { current_declspecs = TREE_VALUE (declspec_stack);
916 prefix_attributes = TREE_PURPOSE (declspec_stack);
917 declspec_stack = TREE_CHAIN (declspec_stack);
918 resume_momentary ($2); }
919 | declmods setspecs notype_nested_function
920 { current_declspecs = TREE_VALUE (declspec_stack);
921 prefix_attributes = TREE_PURPOSE (declspec_stack);
922 declspec_stack = TREE_CHAIN (declspec_stack);
923 resume_momentary ($2); }
924 | typed_declspecs ';'
927 { pedwarn ("empty declaration"); }
930 /* Declspecs which contain at least one type specifier or typedef name.
931 (Just `const' or `volatile' is not enough.)
932 A typedef'd name following these is taken as a name to be declared. */
935 typespec reserved_declspecs
936 { $$ = tree_cons (NULL_TREE, $1, $2); }
937 | declmods typespec reserved_declspecs
938 { $$ = chainon ($3, tree_cons (NULL_TREE, $2, $1)); }
941 reserved_declspecs: /* empty */
943 | reserved_declspecs typespecqual_reserved
944 { $$ = tree_cons (NULL_TREE, $2, $1); }
945 | reserved_declspecs SCSPEC
946 { if (extra_warnings)
947 warning ("`%s' is not at beginning of declaration",
948 IDENTIFIER_POINTER ($2));
949 $$ = tree_cons (NULL_TREE, $2, $1); }
952 /* List of just storage classes and type modifiers.
953 A declaration can start with just this, but then it cannot be used
954 to redeclare a typedef-name. */
958 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
959 TREE_STATIC ($$) = 1; }
961 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE); }
963 { $$ = tree_cons (NULL_TREE, $2, $1);
964 TREE_STATIC ($$) = 1; }
966 { if (extra_warnings && TREE_STATIC ($1))
967 warning ("`%s' is not at beginning of declaration",
968 IDENTIFIER_POINTER ($2));
969 $$ = tree_cons (NULL_TREE, $2, $1);
970 TREE_STATIC ($$) = TREE_STATIC ($1); }
974 /* Used instead of declspecs where storage classes are not allowed
975 (that is, for typenames and structure components).
976 Don't accept a typedef-name if anything but a modifier precedes it. */
979 typespec reserved_typespecquals
980 { $$ = tree_cons (NULL_TREE, $1, $2); }
981 | nonempty_type_quals typespec reserved_typespecquals
982 { $$ = chainon ($3, tree_cons (NULL_TREE, $2, $1)); }
985 reserved_typespecquals: /* empty */
987 | reserved_typespecquals typespecqual_reserved
988 { $$ = tree_cons (NULL_TREE, $2, $1); }
991 /* A typespec (but not a type qualifier).
992 Once we have seen one of these in a declaration,
993 if a typedef name appears then it is being redeclared. */
998 { /* For a typedef name, record the meaning, not the name.
999 In case of `foo foo, bar;'. */
1000 $$ = lookup_name ($1); }
1002 | CLASSNAME protocolrefs
1003 { $$ = get_static_reference ($1, $2); }
1004 | OBJECTNAME protocolrefs
1005 { $$ = get_object_reference ($2); }
1007 | TYPEOF '(' expr ')'
1008 { $$ = TREE_TYPE ($3); }
1009 | TYPEOF '(' typename ')'
1010 { $$ = groktypename ($3); }
1013 /* A typespec that is a reserved word, or a type qualifier. */
1015 typespecqual_reserved: TYPESPEC
1022 | initdecls ',' initdcl
1027 | notype_initdecls ',' initdcl
1033 | ASM_KEYWORD '(' string ')'
1034 { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
1040 declarator maybeasm maybe_attribute '='
1041 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1042 $3, prefix_attributes);
1043 start_init ($<ttype>$, $2, global_bindings_p ()); }
1045 /* Note how the declaration of the variable is in effect while its init is parsed! */
1047 finish_decl ($<ttype>5, $6, $2); }
1048 | declarator maybeasm maybe_attribute
1049 { tree d = start_decl ($1, current_declspecs, 0,
1050 $3, prefix_attributes);
1051 finish_decl (d, NULL_TREE, $2);
1056 notype_declarator maybeasm maybe_attribute '='
1057 { $<ttype>$ = start_decl ($1, current_declspecs, 1,
1058 $3, prefix_attributes);
1059 start_init ($<ttype>$, $2, global_bindings_p ()); }
1061 /* Note how the declaration of the variable is in effect while its init is parsed! */
1063 decl_attributes ($<ttype>5, $3, prefix_attributes);
1064 finish_decl ($<ttype>5, $6, $2); }
1065 | notype_declarator maybeasm maybe_attribute
1066 { tree d = start_decl ($1, current_declspecs, 0,
1067 $3, prefix_attributes);
1068 finish_decl (d, NULL_TREE, $2); }
1070 /* the * rules are dummies to accept the Apollo extended syntax
1071 so that the header files compile. */
1082 | attributes attribute
1083 { $$ = chainon ($1, $2); }
1087 ATTRIBUTE '(' '(' attribute_list ')' ')'
1094 | attribute_list ',' attrib
1095 { $$ = chainon ($1, $3); }
1102 { $$ = build_tree_list ($1, NULL_TREE); }
1103 | any_word '(' IDENTIFIER ')'
1104 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
1105 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
1106 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
1107 | any_word '(' exprlist ')'
1108 { $$ = build_tree_list ($1, $3); }
1111 /* This still leaves out most reserved keywords,
1112 shouldn't we include them? */
1121 /* Initializers. `init' is the entry point. */
1126 { really_start_incremental_init (NULL_TREE);
1127 /* Note that the call to clear_momentary
1128 is in process_init_element. */
1129 push_momentary (); }
1130 initlist_maybe_comma '}'
1131 { $$ = pop_init_level (0);
1132 if ($$ == error_mark_node
1133 && ! (yychar == STRING || yychar == CONSTANT))
1136 pop_momentary_nofree (); }
1139 { $$ = error_mark_node; }
1142 /* `initlist_maybe_comma' is the guts of an initializer in braces. */
1143 initlist_maybe_comma:
1146 pedwarn ("ANSI C forbids empty initializer braces"); }
1147 | initlist1 maybecomma
1152 | initlist1 ',' initelt
1155 /* `initelt' is a single element of an initializer.
1156 It may use braces. */
1159 { process_init_element ($1); }
1161 { push_init_level (0); }
1162 initlist_maybe_comma '}'
1163 { process_init_element (pop_init_level (0)); }
1165 /* These are for labeled elements. The syntax for an array element
1166 initializer conflicts with the syntax for an Objective-C message,
1167 so don't include these productions in the Objective-C grammer. */
1169 | '[' expr_no_commas ELLIPSIS expr_no_commas ']' '='
1170 { set_init_index ($2, $4); }
1172 | '[' expr_no_commas ']' '='
1173 { set_init_index ($2, NULL_TREE); }
1175 | '[' expr_no_commas ']'
1176 { set_init_index ($2, NULL_TREE); }
1180 { set_init_label ($1); }
1182 | '.' identifier '='
1183 { set_init_label ($2); }
1189 { push_c_function_context ();
1190 if (! start_function (current_declspecs, $1,
1191 prefix_attributes, 1))
1193 pop_c_function_context ();
1196 reinit_parse_for_function (); }
1198 { store_parm_decls (); }
1199 /* This used to use compstmt_or_error.
1200 That caused a bug with input `f(g) int g {}',
1201 where the use of YYERROR1 above caused an error
1202 which then was handled by compstmt_or_error.
1203 There followed a repeated execution of that same rule,
1204 which called YYERROR1 again, and so on. */
1206 { finish_function (1);
1207 pop_c_function_context (); }
1210 notype_nested_function:
1212 { push_c_function_context ();
1213 if (! start_function (current_declspecs, $1,
1214 prefix_attributes, 1))
1216 pop_c_function_context ();
1219 reinit_parse_for_function (); }
1221 { store_parm_decls (); }
1222 /* This used to use compstmt_or_error.
1223 That caused a bug with input `f(g) int g {}',
1224 where the use of YYERROR1 above caused an error
1225 which then was handled by compstmt_or_error.
1226 There followed a repeated execution of that same rule,
1227 which called YYERROR1 again, and so on. */
1229 { finish_function (1);
1230 pop_c_function_context (); }
1233 /* Any kind of declarator (thus, all declarators allowed
1234 after an explicit typespec). */
1237 after_type_declarator
1241 /* A declarator that is allowed only after an explicit typespec. */
1243 after_type_declarator:
1244 '(' after_type_declarator ')'
1246 | after_type_declarator '(' parmlist_or_identifiers %prec '.'
1247 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1248 /* | after_type_declarator '(' error ')' %prec '.'
1249 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1250 poplevel (0, 0, 0); } */
1251 | after_type_declarator '[' expr ']' %prec '.'
1252 { $$ = build_nt (ARRAY_REF, $1, $3); }
1253 | after_type_declarator '[' ']' %prec '.'
1254 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
1255 | '*' type_quals after_type_declarator %prec UNARY
1256 { $$ = make_pointer_declarator ($2, $3); }
1257 | attributes setattrs after_type_declarator
1265 /* Kinds of declarator that can appear in a parameter list
1266 in addition to notype_declarator. This is like after_type_declarator
1267 but does not allow a typedef name in parentheses as an identifier
1268 (because it would conflict with a function with that typedef as arg). */
1271 parm_declarator '(' parmlist_or_identifiers %prec '.'
1272 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1273 /* | parm_declarator '(' error ')' %prec '.'
1274 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1275 poplevel (0, 0, 0); } */
1276 | parm_declarator '[' expr ']' %prec '.'
1277 { $$ = build_nt (ARRAY_REF, $1, $3); }
1278 | parm_declarator '[' ']' %prec '.'
1279 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
1280 | '*' type_quals parm_declarator %prec UNARY
1281 { $$ = make_pointer_declarator ($2, $3); }
1282 | attributes setattrs parm_declarator
1287 /* A declarator allowed whether or not there has been
1288 an explicit typespec. These cannot redeclare a typedef-name. */
1291 notype_declarator '(' parmlist_or_identifiers %prec '.'
1292 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1293 /* | notype_declarator '(' error ')' %prec '.'
1294 { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
1295 poplevel (0, 0, 0); } */
1296 | '(' notype_declarator ')'
1298 | '*' type_quals notype_declarator %prec UNARY
1299 { $$ = make_pointer_declarator ($2, $3); }
1300 | notype_declarator '[' expr ']' %prec '.'
1301 { $$ = build_nt (ARRAY_REF, $1, $3); }
1302 | notype_declarator '[' ']' %prec '.'
1303 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
1304 | attributes setattrs notype_declarator
1310 STRUCT identifier '{'
1311 { $$ = start_struct (RECORD_TYPE, $2);
1312 /* Start scope of tag before parsing components. */
1314 component_decl_list '}' maybe_attribute
1315 { $$ = finish_struct ($<ttype>4, $5, $7); }
1316 | STRUCT '{' component_decl_list '}' maybe_attribute
1317 { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
1321 { $$ = xref_tag (RECORD_TYPE, $2); }
1322 | UNION identifier '{'
1323 { $$ = start_struct (UNION_TYPE, $2); }
1324 component_decl_list '}' maybe_attribute
1325 { $$ = finish_struct ($<ttype>4, $5, $7); }
1326 | UNION '{' component_decl_list '}' maybe_attribute
1327 { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
1331 { $$ = xref_tag (UNION_TYPE, $2); }
1332 | ENUM identifier '{'
1333 { $<itype>3 = suspend_momentary ();
1334 $$ = start_enum ($2); }
1335 enumlist maybecomma_warn '}' maybe_attribute
1336 { $$ = finish_enum ($<ttype>4, nreverse ($5), $8);
1337 resume_momentary ($<itype>3); }
1339 { $<itype>2 = suspend_momentary ();
1340 $$ = start_enum (NULL_TREE); }
1341 enumlist maybecomma_warn '}' maybe_attribute
1342 { $$ = finish_enum ($<ttype>3, nreverse ($4), $7);
1343 resume_momentary ($<itype>2); }
1345 { $$ = xref_tag (ENUMERAL_TYPE, $2); }
1356 { if (pedantic) pedwarn ("comma at end of enumerator list"); }
1359 component_decl_list:
1360 component_decl_list2
1362 | component_decl_list2 component_decl
1363 { $$ = chainon ($1, $2);
1364 pedwarn ("no semicolon at end of struct or union"); }
1367 component_decl_list2: /* empty */
1369 | component_decl_list2 component_decl ';'
1370 { $$ = chainon ($1, $2); }
1371 | component_decl_list2 ';'
1373 pedwarn ("extra semicolon in struct or union specified"); }
1375 /* foo(sizeof(struct{ @defs(ClassName)})); */
1376 | DEFS '(' CLASSNAME ')'
1378 tree interface = lookup_interface ($3);
1381 $$ = get_class_ivars (interface);
1384 error ("Cannot find interface declaration for `%s'",
1385 IDENTIFIER_POINTER ($3));
1392 /* There is a shift-reduce conflict here, because `components' may
1393 start with a `typename'. It happens that shifting (the default resolution)
1394 does the right thing, because it treats the `typename' as part of
1395 a `typed_typespecs'.
1397 It is possible that this same technique would allow the distinction
1398 between `notype_initdecls' and `initdecls' to be eliminated.
1399 But I am being cautious and not trying it. */
1402 typed_typespecs setspecs components
1404 current_declspecs = TREE_VALUE (declspec_stack);
1405 prefix_attributes = TREE_PURPOSE (declspec_stack);
1406 declspec_stack = TREE_CHAIN (declspec_stack);
1407 resume_momentary ($2); }
1410 pedwarn ("ANSI C forbids member declarations with no members");
1413 | nonempty_type_quals setspecs components
1415 current_declspecs = TREE_VALUE (declspec_stack);
1416 prefix_attributes = TREE_PURPOSE (declspec_stack);
1417 declspec_stack = TREE_CHAIN (declspec_stack);
1418 resume_momentary ($2); }
1419 | nonempty_type_quals
1421 pedwarn ("ANSI C forbids member declarations with no members");
1429 component_declarator
1430 | components ',' component_declarator
1431 { $$ = chainon ($1, $3); }
1434 component_declarator:
1435 save_filename save_lineno declarator maybe_attribute
1436 { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
1437 decl_attributes ($$, $4, prefix_attributes); }
1438 | save_filename save_lineno
1439 declarator ':' expr_no_commas maybe_attribute
1440 { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
1441 decl_attributes ($$, $6, prefix_attributes); }
1442 | save_filename save_lineno ':' expr_no_commas maybe_attribute
1443 { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
1444 decl_attributes ($$, $5, prefix_attributes); }
1447 /* We chain the enumerators in reverse order.
1448 They are put in forward order where enumlist is used.
1449 (The order used to be significant, but no longer is so.
1450 However, we still maintain the order, just to be clean.) */
1454 | enumlist ',' enumerator
1455 { $$ = chainon ($3, $1); }
1457 { $$ = error_mark_node; }
1463 { $$ = build_enumerator ($1, NULL_TREE); }
1464 | identifier '=' expr_no_commas
1465 { $$ = build_enumerator ($1, $3); }
1469 typed_typespecs absdcl
1470 { $$ = build_tree_list ($1, $2); }
1471 | nonempty_type_quals absdcl
1472 { $$ = build_tree_list ($1, $2); }
1475 absdcl: /* an absolute declarator */
1481 nonempty_type_quals:
1483 { $$ = tree_cons (NULL_TREE, $1, NULL_TREE); }
1484 | nonempty_type_quals TYPE_QUAL
1485 { $$ = tree_cons (NULL_TREE, $2, $1); }
1491 | type_quals TYPE_QUAL
1492 { $$ = tree_cons (NULL_TREE, $2, $1); }
1495 absdcl1: /* a nonempty absolute declarator */
1498 /* `(typedef)1' is `int'. */
1499 | '*' type_quals absdcl1 %prec UNARY
1500 { $$ = make_pointer_declarator ($2, $3); }
1501 | '*' type_quals %prec UNARY
1502 { $$ = make_pointer_declarator ($2, NULL_TREE); }
1503 | absdcl1 '(' parmlist %prec '.'
1504 { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
1505 | absdcl1 '[' expr ']' %prec '.'
1506 { $$ = build_nt (ARRAY_REF, $1, $3); }
1507 | absdcl1 '[' ']' %prec '.'
1508 { $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
1509 | '(' parmlist %prec '.'
1510 { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
1511 | '[' expr ']' %prec '.'
1512 { $$ = build_nt (ARRAY_REF, NULL_TREE, $2); }
1514 { $$ = build_nt (ARRAY_REF, NULL_TREE, NULL_TREE); }
1515 | attributes setattrs absdcl1
1519 /* at least one statement, the first of which parses without error. */
1520 /* stmts is used only after decls, so an invalid first statement
1521 is actually regarded as an invalid decl and part of the decls. */
1524 lineno_stmt_or_label
1525 | stmts lineno_stmt_or_label
1537 pushlevel: /* empty */
1538 { emit_line_note (input_filename, lineno);
1542 expand_start_bindings (0);
1544 if (objc_method_context)
1550 /* Read zero or more forward-declarations for labels
1551 that nested functions can jump to. */
1556 pedwarn ("ANSI C forbids label declarations"); }
1561 | label_decls label_decl
1565 LABEL identifiers_or_typenames ';'
1567 for (link = $2; link; link = TREE_CHAIN (link))
1569 tree label = shadow_label (TREE_VALUE (link));
1570 C_DECLARED_LABEL_FLAG (label) = 1;
1571 declare_nonlocal_label (label);
1576 /* This is the body of a function definition.
1577 It causes syntax errors to ignore to the next openbrace. */
1585 { $$ = convert (void_type_node, integer_zero_node); }
1586 | '{' pushlevel maybe_label_decls decls xstmts '}'
1587 { emit_line_note (input_filename, lineno);
1588 expand_end_bindings (getdecls (), 1, 0);
1589 $$ = poplevel (1, 1, 0);
1590 if (yychar == CONSTANT || yychar == STRING)
1591 pop_momentary_nofree ();
1594 | '{' pushlevel maybe_label_decls error '}'
1595 { emit_line_note (input_filename, lineno);
1596 expand_end_bindings (getdecls (), kept_level_p (), 0);
1597 $$ = poplevel (kept_level_p (), 0, 0);
1598 if (yychar == CONSTANT || yychar == STRING)
1599 pop_momentary_nofree ();
1602 | '{' pushlevel maybe_label_decls stmts '}'
1603 { emit_line_note (input_filename, lineno);
1604 expand_end_bindings (getdecls (), kept_level_p (), 0);
1605 $$ = poplevel (kept_level_p (), 0, 0);
1606 if (yychar == CONSTANT || yychar == STRING)
1607 pop_momentary_nofree ();
1612 /* Value is number of statements counted as of the closeparen. */
1614 if_prefix lineno_labeled_stmt
1615 /* Make sure expand_end_cond is run once
1616 for each call to expand_start_cond.
1617 Otherwise a crash is likely. */
1623 { emit_line_note ($<filename>-1, $<lineno>0);
1624 expand_start_cond (truthvalue_conversion ($3), 0);
1625 $<itype>$ = stmt_count;
1626 if_stmt_file = $<filename>-1;
1627 if_stmt_line = $<lineno>0;
1628 position_after_white_space (); }
1631 /* This is a subroutine of stmt.
1632 It is used twice, once for valid DO statements
1633 and once for catching errors in parsing the end test. */
1637 emit_line_note ($<filename>-1, $<lineno>0);
1638 /* See comment in `while' alternative, above. */
1640 expand_start_loop_continue_elsewhere (1);
1641 position_after_white_space (); }
1642 lineno_labeled_stmt WHILE
1643 { expand_loop_continue_here (); }
1647 { $$ = input_filename; }
1654 lineno_labeled_stmt:
1655 save_filename save_lineno stmt
1657 /* | save_filename save_lineno error
1660 | save_filename save_lineno label lineno_labeled_stmt
1664 lineno_stmt_or_label:
1665 save_filename save_lineno stmt_or_label
1673 position_after_white_space ();
1674 next = getc (finput);
1675 ungetc (next, finput);
1676 if (pedantic && next == '}')
1677 pedwarn ("ANSI C forbids label at end of compound statement");
1681 /* Parse a single real statement, not including any labels. */
1688 emit_line_note ($<filename>-1, $<lineno>0);
1689 /* It appears that this should not be done--that a non-lvalue array
1690 shouldn't get an error if the value isn't used.
1691 Section 3.2.2.1 says that an array lvalue gets converted to a pointer
1692 if it appears as a top-level expression,
1693 but says nothing about non-lvalue arrays. */
1695 /* Call default_conversion to get an error
1696 on referring to a register array if pedantic. */
1697 if (TREE_CODE (TREE_TYPE ($1)) == ARRAY_TYPE
1698 || TREE_CODE (TREE_TYPE ($1)) == FUNCTION_TYPE)
1699 $1 = default_conversion ($1);
1701 iterator_expand ($1);
1702 clear_momentary (); }
1704 { expand_start_else ();
1705 $<itype>1 = stmt_count;
1706 position_after_white_space (); }
1708 { expand_end_cond ();
1709 if (extra_warnings && stmt_count == $<itype>1)
1710 warning ("empty body in an else-statement"); }
1711 | simple_if %prec IF
1712 { expand_end_cond ();
1713 /* This warning is here instead of in simple_if, because we
1714 do not want a warning if an empty if is followed by an
1715 else statement. Increment stmt_count so we don't
1716 give a second error if this is a nested `if'. */
1717 if (extra_warnings && stmt_count++ == $<itype>1)
1718 warning_with_file_and_line (if_stmt_file, if_stmt_line,
1719 "empty body in an if-statement"); }
1720 /* Make sure expand_end_cond is run once
1721 for each call to expand_start_cond.
1722 Otherwise a crash is likely. */
1723 | simple_if ELSE error
1724 { expand_end_cond (); }
1727 emit_line_note ($<filename>-1, $<lineno>0);
1728 /* The emit_nop used to come before emit_line_note,
1729 but that made the nop seem like part of the preceding line.
1730 And that was confusing when the preceding line was
1731 inside of an if statement and was not really executed.
1732 I think it ought to work to put the nop after the line number.
1733 We will see. --rms, July 15, 1991. */
1736 { /* Don't start the loop till we have succeeded
1737 in parsing the end test. This is to make sure
1738 that we end every loop we start. */
1739 expand_start_loop (1);
1740 emit_line_note (input_filename, lineno);
1741 expand_exit_loop_if_false (NULL_PTR,
1742 truthvalue_conversion ($4));
1743 position_after_white_space (); }
1745 { expand_end_loop (); }
1748 { emit_line_note (input_filename, lineno);
1749 expand_exit_loop_if_false (NULL_PTR,
1750 truthvalue_conversion ($3));
1752 clear_momentary (); }
1753 /* This rule is needed to make sure we end every loop we start. */
1754 | do_stmt_start error
1755 { expand_end_loop ();
1756 clear_momentary (); }
1760 emit_line_note ($<filename>-1, $<lineno>0);
1761 /* See comment in `while' alternative, above. */
1763 if ($3) c_expand_expr_stmt ($3);
1764 /* Next step is to call expand_start_loop_continue_elsewhere,
1765 but wait till after we parse the entire for (...).
1766 Otherwise, invalid input might cause us to call that
1767 fn without calling expand_end_loop. */
1770 /* Can't emit now; wait till after expand_start_loop... */
1771 { $<lineno>7 = lineno;
1772 $<filename>$ = input_filename; }
1775 /* Start the loop. Doing this after parsing
1776 all the expressions ensures we will end the loop. */
1777 expand_start_loop_continue_elsewhere (1);
1778 /* Emit the end-test, with a line number. */
1779 emit_line_note ($<filename>8, $<lineno>7);
1781 expand_exit_loop_if_false (NULL_PTR,
1782 truthvalue_conversion ($6));
1783 /* Don't let the tree nodes for $9 be discarded by
1784 clear_momentary during the parsing of the next stmt. */
1786 $<lineno>7 = lineno;
1787 $<filename>8 = input_filename;
1788 position_after_white_space (); }
1790 { /* Emit the increment expression, with a line number. */
1791 emit_line_note ($<filename>8, $<lineno>7);
1792 expand_loop_continue_here ();
1794 c_expand_expr_stmt ($9);
1795 if (yychar == CONSTANT || yychar == STRING)
1796 pop_momentary_nofree ();
1799 expand_end_loop (); }
1800 | SWITCH '(' expr ')'
1802 emit_line_note ($<filename>-1, $<lineno>0);
1803 c_expand_start_case ($3);
1804 /* Don't let the tree nodes for $3 be discarded by
1805 clear_momentary during the parsing of the next stmt. */
1807 position_after_white_space (); }
1809 { expand_end_case ($3);
1810 if (yychar == CONSTANT || yychar == STRING)
1811 pop_momentary_nofree ();
1816 emit_line_note ($<filename>-1, $<lineno>0);
1817 if ( ! expand_exit_something ())
1818 error ("break statement not within loop or switch"); }
1821 emit_line_note ($<filename>-1, $<lineno>0);
1822 if (! expand_continue_loop (NULL_PTR))
1823 error ("continue statement not within a loop"); }
1826 emit_line_note ($<filename>-1, $<lineno>0);
1827 c_expand_return (NULL_TREE); }
1830 emit_line_note ($<filename>-1, $<lineno>0);
1831 c_expand_return ($2); }
1832 | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
1834 emit_line_note ($<filename>-1, $<lineno>0);
1836 if ((TREE_CODE ($4) == ADDR_EXPR
1837 && TREE_CODE (TREE_OPERAND ($4, 0)) == STRING_CST)
1838 || TREE_CODE ($4) == STRING_CST)
1841 error ("argument of `asm' is not a constant string"); }
1842 /* This is the case with just output operands. */
1843 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
1845 emit_line_note ($<filename>-1, $<lineno>0);
1846 c_expand_asm_operands ($4, $6, NULL_TREE, NULL_TREE,
1847 $2 == ridpointers[(int)RID_VOLATILE],
1848 input_filename, lineno); }
1849 /* This is the case with input operands as well. */
1850 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':' asm_operands ')' ';'
1852 emit_line_note ($<filename>-1, $<lineno>0);
1853 c_expand_asm_operands ($4, $6, $8, NULL_TREE,
1854 $2 == ridpointers[(int)RID_VOLATILE],
1855 input_filename, lineno); }
1856 /* This is the case with clobbered registers as well. */
1857 | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
1858 asm_operands ':' asm_clobbers ')' ';'
1860 emit_line_note ($<filename>-1, $<lineno>0);
1861 c_expand_asm_operands ($4, $6, $8, $10,
1862 $2 == ridpointers[(int)RID_VOLATILE],
1863 input_filename, lineno); }
1864 | GOTO identifier ';'
1867 emit_line_note ($<filename>-1, $<lineno>0);
1868 decl = lookup_label ($2);
1871 TREE_USED (decl) = 1;
1877 emit_line_note ($<filename>-1, $<lineno>0);
1878 expand_computed_goto (convert (ptr_type_node, $3)); }
1883 all_iter_stmt_simple
1884 /* | all_iter_stmt_with_decl */
1887 all_iter_stmt_simple:
1890 /* The value returned by this action is */
1891 /* 1 if everything is OK */
1892 /* 0 in case of error or already bound iterator */
1895 if (TREE_CODE ($3) != VAR_DECL)
1896 error ("invalid `for (ITERATOR)' syntax");
1897 else if (! ITERATOR_P ($3))
1898 error ("`%s' is not an iterator",
1899 IDENTIFIER_POINTER (DECL_NAME ($3)));
1900 else if (ITERATOR_BOUND_P ($3))
1901 error ("`for (%s)' inside expansion of same iterator",
1902 IDENTIFIER_POINTER (DECL_NAME ($3)));
1906 iterator_for_loop_start ($3);
1912 iterator_for_loop_end ($3);
1915 /* This really should allow any kind of declaration,
1916 for generality. Fix it before turning it back on.
1918 all_iter_stmt_with_decl:
1919 FOR '(' ITERATOR pushlevel setspecs iterator_spec ')'
1921 */ /* The value returned by this action is */
1922 /* 1 if everything is OK */
1923 /* 0 in case of error or already bound iterator */
1925 iterator_for_loop_start ($6);
1929 iterator_for_loop_end ($6);
1930 emit_line_note (input_filename, lineno);
1931 expand_end_bindings (getdecls (), 1, 0);
1932 $<ttype>$ = poplevel (1, 1, 0);
1933 if (yychar == CONSTANT || yychar == STRING)
1934 pop_momentary_nofree ();
1940 /* Any kind of label, including jump labels and case labels.
1941 ANSI C accepts labels only before statements, but we allow them
1942 also at the end of a compound statement. */
1944 label: CASE expr_no_commas ':'
1945 { register tree value = check_case_value ($2);
1947 = build_decl (LABEL_DECL, NULL_TREE, NULL_TREE);
1951 if (value != error_mark_node)
1954 int success = pushcase (value, convert_and_check,
1957 error ("case label not within a switch statement");
1958 else if (success == 2)
1960 error ("duplicate case value");
1961 error_with_decl (duplicate, "this is the first entry for that value");
1963 else if (success == 3)
1964 warning ("case value out of range");
1965 else if (success == 5)
1966 error ("case label within scope of cleanup or variable array");
1968 position_after_white_space (); }
1969 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
1970 { register tree value1 = check_case_value ($2);
1971 register tree value2 = check_case_value ($4);
1973 = build_decl (LABEL_DECL, NULL_TREE, NULL_TREE);
1977 if (value1 != error_mark_node && value2 != error_mark_node)
1980 int success = pushcase_range (value1, value2,
1981 convert_and_check, label,
1984 error ("case label not within a switch statement");
1985 else if (success == 2)
1987 error ("duplicate case value");
1988 error_with_decl (duplicate, "this is the first entry for that value");
1990 else if (success == 3)
1991 warning ("case value out of range");
1992 else if (success == 4)
1993 warning ("empty case range");
1994 else if (success == 5)
1995 error ("case label within scope of cleanup or variable array");
1997 position_after_white_space (); }
2002 = build_decl (LABEL_DECL, NULL_TREE, NULL_TREE);
2003 int success = pushcase (NULL_TREE, 0, label, &duplicate);
2006 error ("default label not within a switch statement");
2007 else if (success == 2)
2009 error ("multiple default labels in one switch");
2010 error_with_decl (duplicate, "this is the first default label");
2012 position_after_white_space (); }
2014 { tree label = define_label (input_filename, lineno, $1);
2018 expand_label (label);
2019 position_after_white_space (); }
2022 /* Either a type-qualifier or nothing. First thing in an `asm' statement. */
2026 { emit_line_note (input_filename, lineno);
2029 { emit_line_note (input_filename, lineno); }
2038 /* These are the operands other than the first string and colon
2039 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
2040 asm_operands: /* empty */
2042 | nonnull_asm_operands
2045 nonnull_asm_operands:
2047 | nonnull_asm_operands ',' asm_operand
2048 { $$ = chainon ($1, $3); }
2053 { $$ = build_tree_list ($1, $3); }
2058 { $$ = tree_cons (NULL_TREE, combine_strings ($1), NULL_TREE); }
2059 | asm_clobbers ',' string
2060 { $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
2063 /* This is what appears inside the parens in a function declarator.
2064 Its value is a list of ..._TYPE nodes. */
2067 clear_parm_order ();
2068 declare_parm_level (0); }
2071 parmlist_tags_warning ();
2072 poplevel (0, 0, 0); }
2080 pedwarn ("ANSI C forbids forward parameter declarations");
2081 /* Mark the forward decls as such. */
2082 for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
2083 TREE_ASM_WRITTEN (parm) = 1;
2084 clear_parm_order (); }
2088 { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
2091 /* This is what appears inside the parens in a function declarator.
2092 Is value is represented in the format that grokdeclarator expects. */
2093 parmlist_2: /* empty */
2094 { $$ = get_parm_info (0); }
2096 { $$ = get_parm_info (0);
2097 /* Gcc used to allow this as an extension. However, it does
2098 not work for all targets, and thus has been disabled.
2099 Also, since func (...) and func () are indistinguishable,
2100 it caused problems with the code in expand_builtin which
2101 tries to verify that BUILT_IN_NEXT_ARG is being used
2103 error ("ANSI C requires a named argument before `...'");
2106 { $$ = get_parm_info (1); }
2107 | parms ',' ELLIPSIS
2108 { $$ = get_parm_info (0); }
2113 { push_parm_decl ($1); }
2115 { push_parm_decl ($3); }
2118 /* A single parameter declaration or parameter type name,
2119 as found in a parmlist. */
2121 typed_declspecs parm_declarator maybe_attribute
2122 { $$ = build_tree_list (build_tree_list ($1, $2),
2123 build_tree_list (prefix_attributes,
2125 | typed_declspecs notype_declarator maybe_attribute
2126 { $$ = build_tree_list (build_tree_list ($1, $2),
2127 build_tree_list (prefix_attributes,
2129 | typed_declspecs absdcl maybe_attribute
2130 { $$ = build_tree_list (build_tree_list ($1, $2),
2131 build_tree_list (prefix_attributes,
2133 | declmods notype_declarator maybe_attribute
2134 { $$ = build_tree_list (build_tree_list ($1, $2),
2135 build_tree_list (prefix_attributes,
2138 | declmods absdcl maybe_attribute
2139 { $$ = build_tree_list (build_tree_list ($1, $2),
2140 build_tree_list (prefix_attributes,
2144 /* This is used in a function definition
2145 where either a parmlist or an identifier list is ok.
2146 Its value is a list of ..._TYPE nodes or a list of identifiers. */
2147 parmlist_or_identifiers:
2149 clear_parm_order ();
2150 declare_parm_level (1); }
2151 parmlist_or_identifiers_1
2153 parmlist_tags_warning ();
2154 poplevel (0, 0, 0); }
2157 parmlist_or_identifiers_1:
2161 for (t = $1; t; t = TREE_CHAIN (t))
2162 if (TREE_VALUE (t) == NULL_TREE)
2163 error ("`...' in old-style identifier list");
2164 $$ = tree_cons (NULL_TREE, NULL_TREE, $1); }
2167 /* A nonempty list of identifiers. */
2170 { $$ = build_tree_list (NULL_TREE, $1); }
2171 | identifiers ',' IDENTIFIER
2172 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2175 /* A nonempty list of identifiers, including typenames. */
2176 identifiers_or_typenames:
2178 { $$ = build_tree_list (NULL_TREE, $1); }
2179 | identifiers_or_typenames ',' identifier
2180 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2184 /* Objective-C productions. */
2194 if (objc_implementation_context)
2196 finish_class (objc_implementation_context);
2197 objc_ivar_chain = NULL_TREE;
2198 objc_implementation_context = NULL_TREE;
2201 warning ("`@end' must appear in an implementation context");
2205 /* A nonempty list of identifiers. */
2208 { $$ = build_tree_list (NULL_TREE, $1); }
2209 | identifier_list ',' identifier
2210 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2214 CLASS identifier_list ';'
2216 objc_declare_class ($2);
2220 ALIAS identifier identifier ';'
2222 objc_declare_alias ($2, $3);
2226 INTERFACE identifier protocolrefs '{'
2228 objc_interface_context = objc_ivar_context
2229 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2230 objc_public_flag = 0;
2234 continue_class (objc_interface_context);
2239 finish_class (objc_interface_context);
2240 objc_interface_context = NULL_TREE;
2243 | INTERFACE identifier protocolrefs
2245 objc_interface_context
2246 = start_class (CLASS_INTERFACE_TYPE, $2, NULL_TREE, $3);
2247 continue_class (objc_interface_context);
2252 finish_class (objc_interface_context);
2253 objc_interface_context = NULL_TREE;
2256 | INTERFACE identifier ':' identifier protocolrefs '{'
2258 objc_interface_context = objc_ivar_context
2259 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2260 objc_public_flag = 0;
2264 continue_class (objc_interface_context);
2269 finish_class (objc_interface_context);
2270 objc_interface_context = NULL_TREE;
2273 | INTERFACE identifier ':' identifier protocolrefs
2275 objc_interface_context
2276 = start_class (CLASS_INTERFACE_TYPE, $2, $4, $5);
2277 continue_class (objc_interface_context);
2282 finish_class (objc_interface_context);
2283 objc_interface_context = NULL_TREE;
2286 | IMPLEMENTATION identifier '{'
2288 objc_implementation_context = objc_ivar_context
2289 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2290 objc_public_flag = 0;
2295 = continue_class (objc_implementation_context);
2298 | IMPLEMENTATION identifier
2300 objc_implementation_context
2301 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, NULL_TREE, NULL_TREE);
2303 = continue_class (objc_implementation_context);
2306 | IMPLEMENTATION identifier ':' identifier '{'
2308 objc_implementation_context = objc_ivar_context
2309 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2310 objc_public_flag = 0;
2315 = continue_class (objc_implementation_context);
2318 | IMPLEMENTATION identifier ':' identifier
2320 objc_implementation_context
2321 = start_class (CLASS_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2323 = continue_class (objc_implementation_context);
2326 | INTERFACE identifier '(' identifier ')' protocolrefs
2328 objc_interface_context
2329 = start_class (CATEGORY_INTERFACE_TYPE, $2, $4, $6);
2330 continue_class (objc_interface_context);
2335 finish_class (objc_interface_context);
2336 objc_interface_context = NULL_TREE;
2339 | IMPLEMENTATION identifier '(' identifier ')'
2341 objc_implementation_context
2342 = start_class (CATEGORY_IMPLEMENTATION_TYPE, $2, $4, NULL_TREE);
2344 = continue_class (objc_implementation_context);
2349 PROTOCOL identifier protocolrefs
2351 remember_protocol_qualifiers ();
2352 objc_interface_context
2353 = start_protocol(PROTOCOL_INTERFACE_TYPE, $2, $3);
2357 forget_protocol_qualifiers();
2358 finish_protocol(objc_interface_context);
2359 objc_interface_context = NULL_TREE;
2368 | ARITHCOMPARE identifier_list ARITHCOMPARE
2370 if ($1 == LT_EXPR && $3 == GT_EXPR)
2378 ivar_decl_list visibility_spec ivar_decls
2383 PRIVATE { objc_public_flag = 2; }
2384 | PROTECTED { objc_public_flag = 0; }
2385 | PUBLIC { objc_public_flag = 1; }
2393 | ivar_decls ivar_decl ';'
2397 pedwarn ("extra semicolon in struct or union specified");
2402 /* There is a shift-reduce conflict here, because `components' may
2403 start with a `typename'. It happens that shifting (the default resolution)
2404 does the right thing, because it treats the `typename' as part of
2405 a `typed_typespecs'.
2407 It is possible that this same technique would allow the distinction
2408 between `notype_initdecls' and `initdecls' to be eliminated.
2409 But I am being cautious and not trying it. */
2412 typed_typespecs setspecs ivars
2415 resume_momentary ($2);
2417 | nonempty_type_quals setspecs ivars
2420 resume_momentary ($2);
2430 | ivars ',' ivar_declarator
2436 $$ = add_instance_variable (objc_ivar_context,
2438 $1, current_declspecs,
2441 | declarator ':' expr_no_commas
2443 $$ = add_instance_variable (objc_ivar_context,
2445 $1, current_declspecs, $3);
2447 | ':' expr_no_commas
2449 $$ = add_instance_variable (objc_ivar_context,
2452 current_declspecs, $2);
2459 remember_protocol_qualifiers ();
2460 if (objc_implementation_context)
2461 objc_inherit_code = CLASS_METHOD_DECL;
2463 fatal ("method definition not in class context");
2467 forget_protocol_qualifiers ();
2468 add_class_method (objc_implementation_context, $3);
2469 start_method_def ($3);
2470 objc_method_context = $3;
2474 continue_method_def ();
2478 finish_method_def ();
2479 objc_method_context = NULL_TREE;
2484 remember_protocol_qualifiers ();
2485 if (objc_implementation_context)
2486 objc_inherit_code = INSTANCE_METHOD_DECL;
2488 fatal ("method definition not in class context");
2492 forget_protocol_qualifiers ();
2493 add_instance_method (objc_implementation_context, $3);
2494 start_method_def ($3);
2495 objc_method_context = $3;
2499 continue_method_def ();
2503 finish_method_def ();
2504 objc_method_context = NULL_TREE;
2508 /* the reason for the strange actions in this rule
2509 is so that notype_initdecls when reached via datadef
2510 can find a valid list of type and sc specs in $0. */
2514 | {$<ttype>$ = NULL_TREE; } methodprotolist2
2517 methodprotolist2: /* eliminates a shift/reduce conflict */
2520 | methodprotolist2 methodproto
2521 | methodprotolist2 {$<ttype>$ = NULL_TREE; } datadef
2532 objc_inherit_code = CLASS_METHOD_DECL;
2536 add_class_method (objc_interface_context, $3);
2542 objc_inherit_code = INSTANCE_METHOD_DECL;
2546 add_instance_method (objc_interface_context, $3);
2552 '(' typename ')' unaryselector
2554 $$ = build_method_decl (objc_inherit_code, $2, $4, NULL_TREE);
2559 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, NULL_TREE);
2562 | '(' typename ')' keywordselector optparmlist
2564 $$ = build_method_decl (objc_inherit_code, $2, $4, $5);
2567 | keywordselector optparmlist
2569 $$ = build_method_decl (objc_inherit_code, NULL_TREE, $1, $2);
2573 /* "optarglist" assumes that start_method_def has already been called...
2574 if it is not, the "xdecls" will not be placed in the proper scope */
2581 /* to get around the following situation: "int foo (int a) int b; {}" that
2582 is synthesized when parsing "- a:a b:b; id c; id d; { ... }" */
2597 typed_declspecs setspecs myparms ';'
2598 { resume_momentary ($2); }
2599 | typed_declspecs ';'
2600 { shadow_tag ($1); }
2602 { pedwarn ("empty declaration"); }
2607 { push_parm_decl ($1); }
2608 | myparms ',' myparm
2609 { push_parm_decl ($3); }
2612 /* A single parameter declaration or parameter type name,
2613 as found in a parmlist. DOES NOT ALLOW AN INITIALIZER OR ASMSPEC */
2616 parm_declarator maybe_attribute
2617 { $$ = build_tree_list (build_tree_list (current_declspecs,
2619 build_tree_list (prefix_attributes,
2621 | notype_declarator maybe_attribute
2622 { $$ = build_tree_list (build_tree_list (current_declspecs,
2624 build_tree_list (prefix_attributes,
2626 | absdcl maybe_attribute
2627 { $$ = build_tree_list (build_tree_list (current_declspecs,
2629 build_tree_list (prefix_attributes,
2640 /* oh what a kludge! */
2649 /* returns a tree list node generated by get_parm_info */
2662 | keywordselector keyworddecl
2664 $$ = chainon ($1, $2);
2676 ENUM { $$ = get_identifier (token_buffer); }
2677 | STRUCT { $$ = get_identifier (token_buffer); }
2678 | UNION { $$ = get_identifier (token_buffer); }
2679 | IF { $$ = get_identifier (token_buffer); }
2680 | ELSE { $$ = get_identifier (token_buffer); }
2681 | WHILE { $$ = get_identifier (token_buffer); }
2682 | DO { $$ = get_identifier (token_buffer); }
2683 | FOR { $$ = get_identifier (token_buffer); }
2684 | SWITCH { $$ = get_identifier (token_buffer); }
2685 | CASE { $$ = get_identifier (token_buffer); }
2686 | DEFAULT { $$ = get_identifier (token_buffer); }
2687 | BREAK { $$ = get_identifier (token_buffer); }
2688 | CONTINUE { $$ = get_identifier (token_buffer); }
2689 | RETURN { $$ = get_identifier (token_buffer); }
2690 | GOTO { $$ = get_identifier (token_buffer); }
2691 | ASM_KEYWORD { $$ = get_identifier (token_buffer); }
2692 | SIZEOF { $$ = get_identifier (token_buffer); }
2693 | TYPEOF { $$ = get_identifier (token_buffer); }
2694 | ALIGNOF { $$ = get_identifier (token_buffer); }
2695 | TYPESPEC | TYPE_QUAL
2699 selector ':' '(' typename ')' identifier
2701 $$ = build_keyword_decl ($1, $4, $6);
2704 | selector ':' identifier
2706 $$ = build_keyword_decl ($1, NULL_TREE, $3);
2709 | ':' '(' typename ')' identifier
2711 $$ = build_keyword_decl (NULL_TREE, $3, $5);
2716 $$ = build_keyword_decl (NULL_TREE, NULL_TREE, $2);
2727 | keywordarglist keywordarg
2729 $$ = chainon ($1, $2);
2737 if (TREE_CHAIN ($1) == NULL_TREE)
2738 /* just return the expr., remove a level of indirection */
2739 $$ = TREE_VALUE ($1);
2741 /* we have a comma expr., we will collapse later */
2747 selector ':' keywordexpr
2749 $$ = build_tree_list ($1, $3);
2753 $$ = build_tree_list (NULL_TREE, $2);
2761 $$ = get_class_reference ($1);
2767 { objc_receiver_context = 1; }
2769 { objc_receiver_context = 0; }
2772 $$ = build_tree_list ($3, $5);
2783 | keywordnamelist keywordname
2785 $$ = chainon ($1, $2);
2792 $$ = build_tree_list ($1, NULL_TREE);
2796 $$ = build_tree_list (NULL_TREE, NULL_TREE);
2801 SELECTOR '(' selectorarg ')'
2808 PROTOCOL '(' identifier ')'
2814 /* extension to support C-structures in the archiver */
2817 ENCODE '(' typename ')'
2819 $$ = groktypename ($3);