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  19. <h1 style="margin:8px;" id="f1">objc-parse.y&nbsp;&nbsp;&nbsp;<span style="font-weight: normal; font-size: 0.5em;">[<a href="?txt">plain text</a>]</span></h1>
    20. 

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    21. 

  21. <div></div>
    22. 

  22. <pre>
    23. 

  23. /*WARNING: This file is automatically generated!*/
    24. 

  24. /*WARNING: This file is automatically generated!*/
    25. 

  25. /* YACC parser for C syntax and for Objective C.  -*-c-*-
    26. 

  26.    Copyright (C) 1987, 88, 89, 92-98, 1999 Free Software Foundation, Inc.
    27. 

    28. 

  28. This file is part of GNU CC.
    29. 

    30. 

  30. GNU CC is free software; you can redistribute it and/or modify
    31. 

  31. it under the terms of the GNU General Public License as published by
    32. 

  32. the Free Software Foundation; either version 2, or (at your option)
    33. 

  33. any later version.
    34. 

    35. 

  35. GNU CC is distributed in the hope that it will be useful,
    36. 

  36. but WITHOUT ANY WARRANTY; without even the implied warranty of
    37. 

  37. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    38. 

  38. GNU General Public License for more details.
    39. 

    40. 

  40. You should have received a copy of the GNU General Public License
    41. 

  41. along with GNU CC; see the file COPYING.  If not, write to
    42. 

  42. the Free Software Foundation, 59 Temple Place - Suite 330,
    43. 

  43. Boston, MA 02111-1307, USA.  */
    44. 

  44. 

  45. /* This file defines the grammar of C and that of Objective C.
    46. 

  46.    ifobjc ... end ifobjc  conditionals contain code for Objective C only.
    47. 

  47.    ifc ... end ifc  conditionals contain code for C only.
    48. 

  48.    Sed commands in Makefile.in are used to convert this file into
    49. 

  49.    c-parse.y and into objc-parse.y.  */
    50. 

  50. 

  51. /* To whomever it may concern: I have heard that such a thing was once
    52. 

  52.    written by AT&amp;T, but I have never seen it.  */
    53. 

  53. 

  54. %expect 66
    55. 

  55. 

  56. /* These are the 23 conflicts you should get in parse.output;
    57. 

  57.    the state numbers may vary if minor changes in the grammar are made.
    58. 

    59. 

  59. State 42 contains 1 shift/reduce conflict.  (Two ways to parse ATTRIBUTE.)
    60. 

  60. State 44 contains 1 shift/reduce conflict.  (Two ways to recover from error.)
    61. 

  61. State 103 contains 1 shift/reduce conflict.  (Two ways to recover from error.)
    62. 

  62. State 110 contains 1 shift/reduce conflict.  (Two ways to parse ATTRIBUTE.)
    63. 

  63. State 111 contains 1 shift/reduce conflict.  (Two ways to recover from error.)
    64. 

  64. State 115 contains 1 shift/reduce conflict.  (Two ways to recover from error.)
    65. 

  65. State 132 contains 1 shift/reduce conflict.  (See comment at component_decl.)
    66. 

  66. State 180 contains 1 shift/reduce conflict.  (Two ways to parse ATTRIBUTE.)
    67. 

  67. State 194 contains 2 shift/reduce conflict.  (Four ways to parse this.)
    68. 

  68. State 202 contains 1 shift/reduce conflict.  (Two ways to recover from error.)
    69. 

  69. State 214 contains 1 shift/reduce conflict.  (Two ways to recover from error.)
    70. 

  70. State 220 contains 1 shift/reduce conflict.  (Two ways to recover from error.)
    71. 

  71. State 304 contains 2 shift/reduce conflicts.  (Four ways to parse this.)
    72. 

  72. State 335 contains 2 shift/reduce conflicts.  (Four ways to parse this.)
    73. 

  73. State 347 contains 1 shift/reduce conflict.  (Two ways to parse ATTRIBUTES.)
    74. 

  74. State 352 contains 1 shift/reduce conflict.  (Two ways to parse ATTRIBUTES.)
    75. 

  75. State 383 contains 2 shift/reduce conflicts.  (Four ways to parse this.)
    76. 

  76. State 434 contains 2 shift/reduce conflicts.  (Four ways to parse this.)  */
    77. 

  77. 

  78. %{
    79. 

  79. #include &quot;config.h&quot;
    80. 

  80. #include &quot;system.h&quot;
    81. 

  81. #include &lt;setjmp.h&gt;
    82. 

  82. 

  83. #include &quot;tree.h&quot;
    84. 

  84. #include &quot;input.h&quot;
    85. 

  85. #include &quot;c-lex.h&quot;
    86. 

  86. #include &quot;c-tree.h&quot;
    87. 

  87. #include &quot;flags.h&quot;
    88. 

  88. #include &quot;output.h&quot;
    89. 

  89. #include &quot;toplev.h&quot;
    90. 

  90. 

  91. #ifdef MULTIBYTE_CHARS
    92. 

  92. #include &lt;locale.h&gt;
    93. 

  93. #endif
    94. 

  94. 

  95. #include &quot;objc-act.h&quot;
    96. 

  96. 

  97. /* Since parsers are distinct for each language, put the language string
    98. 

  98.    definition here.  */
    99. 

  99. char *language_string = &quot;GNU Obj-C&quot;;
    100. 

  100. 

  101. static tree last_compound_expr, last_compound_list;
    102. 

  102. 

  103. #ifndef errno
    104. 

  104. extern int errno;
    105. 

  105. #endif
    106. 

  106. 

  107. void yyerror ();
    108. 

  108. 

  109. /* Like YYERROR but do call yyerror.  */
    110. 

  110. #define YYERROR1 { yyerror (&quot;syntax error&quot;); YYERROR; }
    111. 

  111. 

  112. /* Cause the `yydebug' variable to be defined.  */
    113. 

  113. #define YYDEBUG 1
    114. 

  114. %}
    115. 

  115. 

  116. %start program
    117. 

  117. 

  118. %union {long itype; tree ttype; enum tree_code code;
    119. 

  119. 	char *filename; int lineno; int ends_in_label; }
    120. 

  120. 

  121. /* All identifiers that are not reserved words
    122. 

  122.    and are not declared typedefs in the current block */
    123. 

  123. %token IDENTIFIER
    124. 

  124. 

  125. /* All identifiers that are declared typedefs in the current block.
    126. 

  126.    In some contexts, they are treated just like IDENTIFIER,
    127. 

  127.    but they can also serve as typespecs in declarations.  */
    128. 

  128. %token TYPENAME
    129. 

  129. 

  130. /* Reserved words that specify storage class.
    131. 

  131.    yylval contains an IDENTIFIER_NODE which indicates which one.  */
    132. 

  132. %token SCSPEC
    133. 

  133. 

  134. /* Reserved words that specify type.
    135. 

  135.    yylval contains an IDENTIFIER_NODE which indicates which one.  */
    136. 

  136. %token TYPESPEC
    137. 

  137. 

  138. /* Reserved words that qualify type: &quot;const&quot;, &quot;volatile&quot;, or &quot;restrict&quot;.
    139. 

  139.    yylval contains an IDENTIFIER_NODE which indicates which one.  */
    140. 

  140. %token TYPE_QUAL
    141. 

  141. 

  142. /* Character or numeric constants.
    143. 

  143.    yylval is the node for the constant.  */
    144. 

  144. %token CONSTANT
    145. 

  145. 

  146. /* String constants in raw form.
    147. 

  147.    yylval is a STRING_CST node.  */
    148. 

  148. %token STRING
    149. 

  149. 

  150. /* &quot;...&quot;, used for functions with variable arglists.  */
    151. 

  151. %token ELLIPSIS
    152. 

  152. 

  153. /* the reserved words */
    154. 

  154. /* SCO include files test &quot;ASM&quot;, so use something else. */
    155. 

  155. %token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
    156. 

  156. %token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
    157. 

  157. %token ATTRIBUTE EXTENSION LABEL
    158. 

  158. %token REALPART IMAGPART
    159. 

  159. 

  160. %token VEC_STEP
    161. 

  161. 

  162. /* Add precedence rules to solve dangling else s/r conflict */
    163. 

  163. %nonassoc IF
    164. 

  164. %nonassoc ELSE
    165. 

  165. 

  166. /* Define the operator tokens and their precedences.
    167. 

  167.    The value is an integer because, if used, it is the tree code
    168. 

  168.    to use in the expression made from the operator.  */
    169. 

  169. 

  170. %right &lt;code&gt; ASSIGN '='
    171. 

  171. %right &lt;code&gt; '?' ':'
    172. 

  172. %left &lt;code&gt; OROR
    173. 

  173. %left &lt;code&gt; ANDAND
    174. 

  174. %left &lt;code&gt; '|'
    175. 

  175. %left &lt;code&gt; '^'
    176. 

  176. %left &lt;code&gt; '&amp;'
    177. 

  177. %left &lt;code&gt; EQCOMPARE
    178. 

  178. %left &lt;code&gt; ARITHCOMPARE
    179. 

  179. %left &lt;code&gt; LSHIFT RSHIFT
    180. 

  180. %left &lt;code&gt; '+' '-'
    181. 

  181. %left &lt;code&gt; '*' '/' '%'
    182. 

  182. %right &lt;code&gt; UNARY PLUSPLUS MINUSMINUS
    183. 

  183. %left HYPERUNARY
    184. 

  184. %left &lt;code&gt; POINTSAT '.' '(' '['
    185. 

  185. 

  186. 

  187. /* The Objective-C keywords.  These are included in C and in
    188. 

  188.    Objective C, so that the token codes are the same in both.  */
    189. 

  189. %token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
    190. 

  190. %token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
    191. 

  191. 

  192. /* Objective-C string constants in raw form.
    193. 

  193.    yylval is an OBJC_STRING_CST node.  */
    194. 

  194. %token OBJC_STRING
    195. 

  195. 

  196. 

  197. %type &lt;code&gt; unop
    198. 

  198. 

  199. %type &lt;ttype&gt; identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
    200. 

  200. %type &lt;ttype&gt; expr_no_commas cast_expr unary_expr primary string STRING
    201. 

  201. %type &lt;ttype&gt; typed_declspecs reserved_declspecs
    202. 

  202. %type &lt;ttype&gt; typed_typespecs reserved_typespecquals
    203. 

  203. %type &lt;ttype&gt; declmods typespec typespecqual_reserved
    204. 

  204. %type &lt;ttype&gt; typed_declspecs_no_prefix_attr reserved_declspecs_no_prefix_attr
    205. 

  205. %type &lt;ttype&gt; declmods_no_prefix_attr
    206. 

  206. %type &lt;ttype&gt; SCSPEC TYPESPEC TYPE_QUAL nonempty_type_quals maybe_type_qual
    207. 

  207. %type &lt;ttype&gt; initdecls notype_initdecls initdcl notype_initdcl
    208. 

  208. %type &lt;ttype&gt; init maybeasm
    209. 

  209. %type &lt;ttype&gt; asm_operands nonnull_asm_operands asm_operand asm_clobbers
    210. 

  210. %type &lt;ttype&gt; maybe_attribute attributes attribute attribute_list attrib
    211. 

  211. %type &lt;ttype&gt; any_word
    212. 

  212. 

  213. %type &lt;ttype&gt; compstmt
    214. 

  214. 

  215. %type &lt;ttype&gt; declarator
    216. 

  216. %type &lt;ttype&gt; notype_declarator after_type_declarator
    217. 

  217. %type &lt;ttype&gt; parm_declarator
    218. 

  218. 

  219. %type &lt;ttype&gt; structsp component_decl_list component_decl_list2
    220. 

  220. %type &lt;ttype&gt; component_decl components component_declarator
    221. 

  221. %type &lt;ttype&gt; enumlist enumerator
    222. 

  222. %type &lt;ttype&gt; struct_head union_head enum_head
    223. 

  223. %type &lt;ttype&gt; typename absdcl absdcl1 type_quals
    224. 

  224. %type &lt;ttype&gt; xexpr parms parm identifiers
    225. 

  225. 

  226. %type &lt;ttype&gt; parmlist parmlist_1 parmlist_2
    227. 

  227. %type &lt;ttype&gt; parmlist_or_identifiers parmlist_or_identifiers_1
    228. 

  228. %type &lt;ttype&gt; identifiers_or_typenames
    229. 

  229. 

  230. %type &lt;itype&gt; setspecs
    231. 

  231. 

  232. %type &lt;ends_in_label&gt; lineno_stmt_or_label lineno_stmt_or_labels stmt_or_label
    233. 

  233. 

  234. %type &lt;filename&gt; save_filename
    235. 

  235. %type &lt;lineno&gt; save_lineno
    236. 

  236. 
    237. 

  237. /* the Objective-C nonterminals */
    238. 

  238. 

  239. %type &lt;ttype&gt; ivar_decl_list ivar_decls ivar_decl ivars ivar_declarator
    240. 

  240. %type &lt;ttype&gt; methoddecl unaryselector keywordselector selector
    241. 

  241. %type &lt;ttype&gt; keyworddecl receiver objcmessageexpr messageargs
    242. 

  242. %type &lt;ttype&gt; keywordexpr keywordarglist keywordarg
    243. 

  243. %type &lt;ttype&gt; myparms myparm optparmlist reservedwords objcselectorexpr
    244. 

  244. %type &lt;ttype&gt; selectorarg keywordnamelist keywordname objcencodeexpr
    245. 

  245. %type &lt;ttype&gt; objc_string non_empty_protocolrefs protocolrefs identifier_list objcprotocolexpr
    246. 

  246. 

  247. %type &lt;ttype&gt; CLASSNAME OBJC_STRING OBJECTNAME
    248. 

  248. %type &lt;ttype&gt; objc_openbracket.expr_no_commas
    249. 

  249. %type &lt;ttype&gt; objc_return_type_mods
    250. 

  250. 
    251. 

  251. %{
    252. 

  252. /* Number of statements (loosely speaking) and compound statements 
    253. 

  253.    seen so far.  */
    254. 

  254. static int stmt_count;
    255. 

  255. static int compstmt_count;
    256. 

  256.   
    257. 

  257. /* Input file and line number of the end of the body of last simple_if;
    258. 

  258.    used by the stmt-rule immediately after simple_if returns.  */
    259. 

  259. static char *if_stmt_file;
    260. 

  260. static int if_stmt_line;
    261. 

  261. 

  262. /* List of types and structure classes of the current declaration.  */
    263. 

  263. static tree current_declspecs = NULL_TREE;
    264. 

  264. static tree prefix_attributes = NULL_TREE;
    265. 

  265. 

  266. /* Stack of saved values of current_declspecs and prefix_attributes.  */
    267. 

  267. static tree declspec_stack;
    268. 

  268. 

  269. /* 1 if we explained undeclared var errors.  */
    270. 

  270. static int undeclared_variable_notice;
    271. 

  271. 

  272. /* Objective-C specific information */
    273. 

  273. 

  274. tree objc_interface_context;
    275. 

  275. tree objc_implementation_context;
    276. 

  276. tree objc_method_context;
    277. 

  277. tree objc_ivar_chain;
    278. 

  278. tree objc_ivar_context;
    279. 

  279. enum tree_code objc_inherit_code;
    280. 

  280. int objc_receiver_context;
    281. 

  281. int objc_public_flag;
    282. 

  282. #ifdef MODERN_OBJC_SYNTAX
    283. 

  283. extern flag_modern_objc_syntax;
    284. 

  284. #endif
    285. 

  285. 

  286. 

  287. /* Tell yyparse how to print a token's value, if yydebug is set.  */
    288. 

  288. 

  289. #define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
    290. 

  290. extern void yyprint			PROTO ((FILE *, int, YYSTYPE));
    291. 

  291. %}
    292. 

  292. 
    293. 

  293. %%
    294. 

  294. program: /* empty */
    295. 

  295. 		{ if (pedantic)
    296. 

  296. 		    pedwarn (&quot;ANSI C forbids an empty source file&quot;);
    297. 

  297. 		  finish_file ();
    298. 

  298. 		}
    299. 

  299. 	| extdefs
    300. 

  300. 		{
    301. 

  301. 		  /* In case there were missing closebraces,
    302. 

  302. 		     get us back to the global binding level.  */
    303. 

  303. 		  while (! global_bindings_p ())
    304. 

  304. 		    poplevel (0, 0, 0);
    305. 

  305. 		  finish_file ();
    306. 

  306. 		}
    307. 

  307. 	;
    308. 

  308. 

  309. /* the reason for the strange actions in this rule
    310. 

  310.  is so that notype_initdecls when reached via datadef
    311. 

  311.  can find a valid list of type and sc specs in $0. */
    312. 

  312. 

  313. extdefs:
    314. 

  314. 	{$&lt;ttype&gt;$ = NULL_TREE; } extdef
    315. 

  315. 	| extdefs {$&lt;ttype&gt;$ = NULL_TREE; } extdef
    316. 

  316. 	;
    317. 

  317. 

  318. extdef:
    319. 

  319. 	fndef
    320. 

  320. 	| datadef
    321. 

  321. 	| objcdef
    322. 

  322. 	| ASM_KEYWORD '(' expr ')' ';'
    323. 

  323. 		{ STRIP_NOPS ($3);
    324. 

  324. 		  if ((TREE_CODE ($3) == ADDR_EXPR
    325. 

  325. 		       &amp;&amp; TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
    326. 

  326. 		      || TREE_CODE ($3) == STRING_CST)
    327. 

  327. 		    assemble_asm ($3);
    328. 

  328. 		  else
    329. 

  329. 		    error (&quot;argument of `asm' is not a constant string&quot;); }
    330. 

  330. 	| extension extdef
    331. 

  331. 		{ pedantic = $&lt;itype&gt;1; }
    332. 

  332. 	;
    333. 

    334. 

    335. 

  335. datadef:
    336. 

  336. 	  setspecs notype_initdecls ';'
    337. 

  337. 		{ if (pedantic)
    338. 

  338. 		    error (&quot;ANSI C forbids data definition with no type or storage class&quot;);
    339. 

  339. 		  else if (!flag_traditional)
    340. 

  340. 		    warning (&quot;data definition has no type or storage class&quot;); 
    341. 

    342. 

  342. 		  current_declspecs = TREE_VALUE (declspec_stack);
    343. 

  343. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    344. 

  344. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    345. 

  345. 		  resume_momentary ($1); }
    346. 

  346.         | declmods setspecs notype_initdecls ';'
    347. 

  347. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    348. 

  348. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    349. 

  349. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    350. 

  350. 		  resume_momentary ($2); }
    351. 

  351. 	| typed_declspecs setspecs initdecls ';'
    352. 

  352. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    353. 

  353. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    354. 

  354. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    355. 

  355. 		  resume_momentary ($2);  }
    356. 

  356.         | declmods ';'
    357. 

  357. 	  { pedwarn (&quot;empty declaration&quot;); }
    358. 

  358. 	| typed_declspecs ';'
    359. 

  359. 	  { shadow_tag ($1); }
    360. 

  360. 	| error ';'
    361. 

  361. 	| error '}'
    362. 

  362. 	| ';'
    363. 

  363. 		{ if (pedantic)
    364. 

  364. 		    pedwarn (&quot;ANSI C does not allow extra `;' outside of a function&quot;); }
    365. 

  365. 	;
    366. 

  366. 
    367. 

  367. fndef:
    368. 

  368. 	  typed_declspecs setspecs declarator
    369. 

  369. 		{
    370. 

  370. #ifdef MODERN_OBJC_SYNTAX
    371. 

  371.                   if (flag_modern_objc_syntax &amp;&amp; objc_implementation_context) 
    372. 

  372.                     { 
    373. 

  373.                     tree md = build_method_decl_from_ansiproto($3, $1,
    374. 

  374.                                         objc_implementation_context);
    375. 

  375.                     start_method_def(md);
    376. 

  376.                     objc_method_context = md;
    377. 

  377.                     objc_receiver_context = 1;
    378. 

  378.                     } 
    379. 

  379.                   else 
    380. 

  380.                     {
    381. 

  381. #endif
    382. 

  382. 		  if (! start_function (current_declspecs, $3,
    383. 

  383. 					prefix_attributes, NULL_TREE, 0))
    384. 

  384. 		    YYERROR1;
    385. 

  385. 		  reinit_parse_for_function ();
    386. 

  386. #ifdef MODERN_OBJC_SYNTAX
    387. 

  387.                     }
    388. 

  388. #endif
    389. 

  389. 		}
    390. 

  390. 	  old_style_parm_decls
    391. 

  391. 		{
    392. 

  392. #ifdef MODERN_OBJC_SYNTAX
    393. 

  393.                    if (objc_implementation_context &amp;&amp; objc_method_context) 
    394. 

  394.                      continue_method_def();
    395. 

  395.                    else
    396. 

  396. #endif
    397. 

  397.                      store_parm_decls (); 
    398. 

  398.                 }
    399. 

  399. 	  compstmt_or_error
    400. 

  400. 		{ 
    401. 

  401. #ifdef MODERN_OBJC_SYNTAX
    402. 

  402.                   if (objc_implementation_context &amp;&amp; objc_method_context) 
    403. 

  403.                     {
    404. 

  404.                       finish_method_def();
    405. 

  405.                       objc_method_context = NULL_TREE;
    406. 

  406.                       objc_receiver_context = 0;
    407. 

  407.                     } 
    408. 

  408.                   else 
    409. 

  409.                     {
    410. 

  410. #endif
    411. 

  411.                       finish_function (0); 
    412. 

  412. 		      current_declspecs = TREE_VALUE (declspec_stack);
    413. 

  413. 		      prefix_attributes = TREE_PURPOSE (declspec_stack);
    414. 

  414. 		      declspec_stack = TREE_CHAIN (declspec_stack);
    415. 

  415. 		      resume_momentary ($2); 
    416. 

  416. #ifdef MODERN_OBJC_SYNTAX
    417. 

  417.                     }
    418. 

  418. #endif
    419. 

  419.                   }
    420. 

  420. 	| typed_declspecs setspecs declarator error
    421. 

  421. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    422. 

  422. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    423. 

  423. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    424. 

  424. 		  resume_momentary ($2); }
    425. 

  425. 	| declmods setspecs notype_declarator
    426. 

  426. 		{ if (! start_function (current_declspecs, $3,
    427. 

  427. 					prefix_attributes, NULL_TREE, 0))
    428. 

  428. 		    YYERROR1;
    429. 

  429. 		  reinit_parse_for_function (); }
    430. 

  430. 	  old_style_parm_decls
    431. 

  431. 		{ store_parm_decls (); }
    432. 

  432. 	  compstmt_or_error
    433. 

  433. 		{ finish_function (0); 
    434. 

  434. 		  current_declspecs = TREE_VALUE (declspec_stack);
    435. 

  435. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    436. 

  436. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    437. 

  437. 		  resume_momentary ($2); }
    438. 

  438. 	| declmods setspecs notype_declarator error
    439. 

  439. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    440. 

  440. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    441. 

  441. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    442. 

  442. 		  resume_momentary ($2); }
    443. 

  443. 	| setspecs notype_declarator
    444. 

  444. 		{ if (! start_function (NULL_TREE, $2,
    445. 

  445. 					prefix_attributes, NULL_TREE, 0))
    446. 

  446. 		    YYERROR1;
    447. 

  447. 		  reinit_parse_for_function (); }
    448. 

  448. 	  old_style_parm_decls
    449. 

  449. 		{ store_parm_decls (); }
    450. 

  450. 	  compstmt_or_error
    451. 

  451. 		{ finish_function (0); 
    452. 

  452. 		  current_declspecs = TREE_VALUE (declspec_stack);
    453. 

  453. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    454. 

  454. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    455. 

  455. 		  resume_momentary ($1); }
    456. 

  456. 	| setspecs notype_declarator error
    457. 

  457. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    458. 

  458. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    459. 

  459. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    460. 

  460. 		  resume_momentary ($1); }
    461. 

  461. 	;
    462. 

  462. 

  463. identifier:
    464. 

  464. 	IDENTIFIER
    465. 

  465. 	| TYPENAME
    466. 

  466. 	| OBJECTNAME
    467. 

  467.         | CLASSNAME
    468. 

  468. 	;
    469. 

  469. 

  470. unop:     '&amp;'
    471. 

  471. 		{ $$ = ADDR_EXPR; }
    472. 

  472. 	| '-'
    473. 

  473. 		{ $$ = NEGATE_EXPR; }
    474. 

  474. 	| '+'
    475. 

  475. 		{ $$ = CONVERT_EXPR; }
    476. 

  476. 	| PLUSPLUS
    477. 

  477. 		{ $$ = PREINCREMENT_EXPR; }
    478. 

  478. 	| MINUSMINUS
    479. 

  479. 		{ $$ = PREDECREMENT_EXPR; }
    480. 

  480. 	| '~'
    481. 

  481. 		{ $$ = BIT_NOT_EXPR; }
    482. 

  482. 	| '!'
    483. 

  483. 		{ $$ = TRUTH_NOT_EXPR; }
    484. 

  484. 	;
    485. 

  485. 

  486. expr:	nonnull_exprlist
    487. 

  487. 		{ $$ = last_compound_expr
    488. 

  488. 		    = build_compound_expr (last_compound_list = $1); }
    489. 

  489. 	;
    490. 

  490. 

  491. exprlist:
    492. 

  492. 	  /* empty */
    493. 

  493. 		{ $$ = NULL_TREE; }
    494. 

  494. 	| nonnull_exprlist
    495. 

  495. 	;
    496. 

  496. 

  497. nonnull_exprlist:
    498. 

  498. 	expr_no_commas
    499. 

  499. 		{ $$ = build_tree_list (NULL_TREE, $1); }
    500. 

  500. 	| nonnull_exprlist ',' expr_no_commas
    501. 

  501. 		{ chainon ($1, build_tree_list (NULL_TREE, $3)); }
    502. 

  502. 	;
    503. 

  503. 

  504. unary_expr:
    505. 

  505. 	primary
    506. 

  506. 	| '*' cast_expr   %prec UNARY
    507. 

  507. 		{ $$ = build_indirect_ref ($2, &quot;unary *&quot;); }
    508. 

  508. 	/* __extension__ turns off -pedantic for following primary.  */
    509. 

  509. 	| extension cast_expr	  %prec UNARY
    510. 

  510. 		{ $$ = $2;
    511. 

  511. 		  pedantic = $&lt;itype&gt;1; }
    512. 

  512. 	| unop cast_expr  %prec UNARY
    513. 

  513. 		{ $$ = build_unary_op ($1, $2, 0);
    514. 

  514. 		  overflow_warning ($$); }
    515. 

  515. 	/* Refer to the address of a label as a pointer.  */
    516. 

  516. 	| ANDAND identifier
    517. 

  517. 		{ tree label = lookup_label ($2);
    518. 

  518. 		  if (pedantic)
    519. 

  519. 		    pedwarn (&quot;ANSI C forbids `&amp;&amp;'&quot;);
    520. 

  520. 		  if (label == 0)
    521. 

  521. 		    $$ = null_pointer_node;
    522. 

  522. 		  else
    523. 

  523. 		    {
    524. 

  524. 		      TREE_USED (label) = 1;
    525. 

  525. 		      $$ = build1 (ADDR_EXPR, ptr_type_node, label);
    526. 

  526. 		      TREE_CONSTANT ($$) = 1;
    527. 

  527. 		    }
    528. 

  528. 		}
    529. 

  529. /* This seems to be impossible on some machines, so let's turn it off.
    530. 

  530.    You can use __builtin_next_arg to find the anonymous stack args.
    531. 

  531. 	| '&amp;' ELLIPSIS
    532. 

  532. 		{ tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
    533. 

  533. 		  $$ = error_mark_node;
    534. 

  534. 		  if (TREE_VALUE (tree_last (types)) == void_type_node)
    535. 

  535. 		    error (&quot;`&amp;...' used in function with fixed number of arguments&quot;);
    536. 

  536. 		  else
    537. 

  537. 		    {
    538. 

  538. 		      if (pedantic)
    539. 

  539. 			pedwarn (&quot;ANSI C forbids `&amp;...'&quot;);
    540. 

  540. 		      $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
    541. 

  541. 		      $$ = build_unary_op (ADDR_EXPR, $$, 0);
    542. 

  542. 		    } }
    543. 

  543. */
    544. 

  544. 	| sizeof unary_expr  %prec UNARY
    545. 

  545. 		{ skip_evaluation--;
    546. 

  546. 		  if (TREE_CODE ($2) == COMPONENT_REF
    547. 

  547. 		      &amp;&amp; DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
    548. 

  548. 		    error (&quot;`sizeof' applied to a bit-field&quot;);
    549. 

  549. 		  $$ = c_sizeof (TREE_TYPE ($2)); }
    550. 

  550. 	| sizeof '(' typename ')'  %prec HYPERUNARY
    551. 

  551. 		{ skip_evaluation--;
    552. 

  552. 		  $$ = c_sizeof (groktypename ($3)); }
    553. 

  553. 	| alignof unary_expr  %prec UNARY
    554. 

  554. 		{ skip_evaluation--;
    555. 

  555. 		  $$ = c_alignof_expr ($2); }
    556. 

  556. 	| alignof '(' typename ')'  %prec HYPERUNARY
    557. 

  557. 		{ skip_evaluation--;
    558. 

  558. 		  $$ = c_alignof (groktypename ($3)); }
    559. 

  559. 	| vec_step unary_expr  %prec UNARY
    560. 

  560. 		{ skip_evaluation--;
    561. 

  561. 		  $$ = c_vec_step_expr ($2); }
    562. 

  562. 	| vec_step '(' typename ')'  %prec HYPERUNARY
    563. 

  563. 		{ skip_evaluation--;
    564. 

  564. 		  $$ = c_vec_step (groktypename ($3)); }
    565. 

  565. 	| REALPART cast_expr %prec UNARY
    566. 

  566. 		{ $$ = build_unary_op (REALPART_EXPR, $2, 0); }
    567. 

  567. 	| IMAGPART cast_expr %prec UNARY
    568. 

  568. 		{ $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
    569. 

  569. 	;
    570. 

  570. 

  571. sizeof:
    572. 

  572. 	SIZEOF { skip_evaluation++; }
    573. 

  573. 	;
    574. 

  574. 

  575. alignof:
    576. 

  576. 	ALIGNOF { skip_evaluation++; }
    577. 

  577. 	;
    578. 

  578. 

  579. vec_step:
    580. 

  580. 	VEC_STEP { skip_evaluation++; }
    581. 

  581. 	;
    582. 

  582. 

  583. cast_expr:
    584. 

  584. 	unary_expr
    585. 

  585. 	| '(' typename ')' cast_expr  %prec UNARY
    586. 

  586. 		{ tree type = groktypename ($2);
    587. 

  587.   		  /* If typename is a vector type, check for the form of a
    588. 

  588. 		     vector constant.  The cast_expr must be of the form
    589. 

  589. 		     '(' nonnull_expr_list ')' and the expression list must
    590. 

  590. 		     consist of integer constants or floating point
    591. 

  591. 		     constants.  Unfortunately, we need the actual list of
    592. 

  592. 		     constants, not the value after the list was reduced by
    593. 

  593. 		     build_compound_expr.  We hack around this by saving
    594. 

  594. 		     the last input and result of build_compound_expr and
    595. 

  595. 		     using them here.  */
    596. 

  596. 		  tree last = $4;
    597. 

  597. 		  STRIP_NOPS(last);
    598. 

  598. 		  if (TREE_CODE (type) == VECTOR_TYPE
    599. 

  599. 		      &amp;&amp; $4 == last_compound_expr
    600. 

  600. 		      &amp;&amp; (TREE_CODE (last) == INTEGER_CST
    601. 

  601. 			  || TREE_CODE (last) == REAL_CST))
    602. 

  602. 		    $$ = build_vector_constant (type, last_compound_list);
    603. 

  603. 		  else
    604. 

  604. 		    $$ = build_c_cast (type, $4); }
    605. 

  605. 	| '(' typename ')' '{' 
    606. 

  606. 		{ start_init (NULL_TREE, NULL, 0);
    607. 

  607. 		  $2 = groktypename ($2);
    608. 

  608. 		  really_start_incremental_init ($2); }
    609. 

  609. 	  initlist_maybe_comma '}'  %prec UNARY
    610. 

  610. 		{ char *name;
    611. 

  611. 		  tree result = pop_init_level (0);
    612. 

  612. 		  tree type = $2;
    613. 

  613. 		  finish_init ();
    614. 

  614. 

  615. 		  if (pedantic &amp;&amp; ! flag_isoc9x)
    616. 

  616. 		    pedwarn (&quot;ANSI C forbids constructor expressions&quot;);
    617. 

  617. 		  if (TYPE_NAME (type) != 0)
    618. 

  618. 		    {
    619. 

  619. 		      if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
    620. 

  620. 			name = IDENTIFIER_POINTER (TYPE_NAME (type));
    621. 

  621. 		      else
    622. 

  622. 			name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
    623. 

  623. 		    }
    624. 

  624. 		  else
    625. 

  625. 		    name = &quot;&quot;;
    626. 

  626. 		  $$ = result;
    627. 

  627. 		  if (TREE_CODE (type) == ARRAY_TYPE &amp;&amp; TYPE_SIZE (type) == 0)
    628. 

  628. 		    {
    629. 

  629. 		      int failure = complete_array_type (type, $$, 1);
    630. 

  630. 		      if (failure)
    631. 

  631. 			abort ();
    632. 

  632. 		    }
    633. 

  633. 		}
    634. 

  634. 	;
    635. 

  635. 

  636. expr_no_commas:
    637. 

  637. 	  cast_expr
    638. 

  638. 	| expr_no_commas '+' expr_no_commas
    639. 

  639. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    640. 

  640. 	| expr_no_commas '-' expr_no_commas
    641. 

  641. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    642. 

  642. 	| expr_no_commas '*' expr_no_commas
    643. 

  643. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    644. 

  644. 	| expr_no_commas '/' expr_no_commas
    645. 

  645. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    646. 

  646. 	| expr_no_commas '%' expr_no_commas
    647. 

  647. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    648. 

  648. 	| expr_no_commas LSHIFT expr_no_commas
    649. 

  649. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    650. 

  650. 	| expr_no_commas RSHIFT expr_no_commas
    651. 

  651. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    652. 

  652. 	| expr_no_commas ARITHCOMPARE expr_no_commas
    653. 

  653. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    654. 

  654. 	| expr_no_commas EQCOMPARE expr_no_commas
    655. 

  655. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    656. 

  656. 	| expr_no_commas '&amp;' expr_no_commas
    657. 

  657. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    658. 

  658. 	| expr_no_commas '|' expr_no_commas
    659. 

  659. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    660. 

  660. 	| expr_no_commas '^' expr_no_commas
    661. 

  661. 		{ $$ = parser_build_binary_op ($2, $1, $3); }
    662. 

  662. 	| expr_no_commas ANDAND
    663. 

  663. 		{ $1 = truthvalue_conversion (default_conversion ($1));
    664. 

  664. 		  skip_evaluation += $1 == boolean_false_node; }
    665. 

  665. 	  expr_no_commas
    666. 

  666. 		{ skip_evaluation -= $1 == boolean_false_node;
    667. 

  667. 		  $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
    668. 

  668. 	| expr_no_commas OROR
    669. 

  669. 		{ $1 = truthvalue_conversion (default_conversion ($1));
    670. 

  670. 		  skip_evaluation += $1 == boolean_true_node; }
    671. 

  671. 	  expr_no_commas
    672. 

  672. 		{ skip_evaluation -= $1 == boolean_true_node;
    673. 

  673. 		  $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
    674. 

  674. 	| expr_no_commas '?'
    675. 

  675. 		{ $1 = truthvalue_conversion (default_conversion ($1));
    676. 

  676. 		  skip_evaluation += $1 == boolean_false_node; }
    677. 

  677.           expr ':'
    678. 

  678. 		{ skip_evaluation += (($1 == boolean_true_node)
    679. 

  679. 				      - ($1 == boolean_false_node)); }
    680. 

  680. 	  expr_no_commas
    681. 

  681. 		{ skip_evaluation -= $1 == boolean_true_node;
    682. 

  682. 		  $$ = build_conditional_expr ($1, $4, $7); }
    683. 

  683. 	| expr_no_commas '?'
    684. 

  684. 		{ if (pedantic)
    685. 

  685. 		    pedwarn (&quot;ANSI C forbids omitting the middle term of a ?: expression&quot;);
    686. 

  686. 		  /* Make sure first operand is calculated only once.  */
    687. 

  687. 		  $&lt;ttype&gt;2 = save_expr ($1);
    688. 

  688. 		  $1 = truthvalue_conversion (default_conversion ($&lt;ttype&gt;2));
    689. 

  689. 		  skip_evaluation += $1 == boolean_true_node; }
    690. 

  690. 	  ':' expr_no_commas
    691. 

  691. 		{ skip_evaluation -= $1 == boolean_true_node;
    692. 

  692. 		  $$ = build_conditional_expr ($1, $&lt;ttype&gt;2, $5); }
    693. 

  693. 	| expr_no_commas '=' expr_no_commas
    694. 

  694. 		{ char class;
    695. 

  695. 		  $$ = build_modify_expr ($1, NOP_EXPR, $3);
    696. 

  696. 		  class = TREE_CODE_CLASS (TREE_CODE ($$));
    697. 

  697. 		  if (class == 'e' || class == '1'
    698. 

  698. 		      || class == '2' || class == '&lt;')
    699. 

  699. 		    C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
    700. 

  700. 		}
    701. 

  701. 	| expr_no_commas ASSIGN expr_no_commas
    702. 

  702. 		{ char class;
    703. 

  703. 		  $$ = build_modify_expr ($1, $2, $3);
    704. 

  704. 		  /* This inhibits warnings in truthvalue_conversion.  */
    705. 

  705. 		  class = TREE_CODE_CLASS (TREE_CODE ($$));
    706. 

  706. 		  if (class == 'e' || class == '1'
    707. 

  707. 		      || class == '2' || class == '&lt;')
    708. 

  708. 		    C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
    709. 

  709. 		}
    710. 

  710. 	;
    711. 

  711. 

  712. primary:
    713. 

  713. 	IDENTIFIER
    714. 

  714. 		{
    715. 

  715. 		  $$ = lastiddecl;
    716. 

  716. 		  if (!$$ || $$ == error_mark_node)
    717. 

  717. 		    {
    718. 

  718. 		      if (yychar == YYEMPTY)
    719. 

  719. 			yychar = YYLEX;
    720. 

  720. 		      if (yychar == '(')
    721. 

  721. 			{
    722. 

  722. 			  tree decl;
    723. 

  723. 

  724. 			  if (objc_receiver_context
    725. 

  725. 			      &amp;&amp; ! (objc_receiver_context
    726. 

  726. 				    &amp;&amp; strcmp (IDENTIFIER_POINTER ($1), &quot;super&quot;)))
    727. 

  727. 			    /* we have a message to super */
    728. 

  728. 			    $$ = get_super_receiver ();
    729. 

  729. 			  else if (objc_method_context
    730. 

  730. 				   &amp;&amp; (decl = is_ivar (objc_ivar_chain, $1)))
    731. 

  731. 			    {
    732. 

  732. 			      if (is_private (decl))
    733. 

  733. 				$$ = error_mark_node;
    734. 

  734. 			      else
    735. 

  735. 				$$ = build_ivar_reference ($1);
    736. 

  736. 			    }
    737. 

  737. 			  else
    738. 

  738. 			    {
    739. 

  739. 			      /* Ordinary implicit function declaration.  */
    740. 

  740. 			      $$ = implicitly_declare ($1);
    741. 

  741. 			      assemble_external ($$);
    742. 

  742. 			      TREE_USED ($$) = 1;
    743. 

  743. 			    }
    744. 

  744. 			}
    745. 

  745. 		      else if (current_function_decl == 0)
    746. 

  746. 			{
    747. 

  747. 			  error (&quot;`%s' undeclared here (not in a function)&quot;,
    748. 

  748. 				 IDENTIFIER_POINTER ($1));
    749. 

  749. 			  $$ = error_mark_node;
    750. 

  750. 			}
    751. 

  751. 		      else
    752. 

  752. 			{
    753. 

  753. 			  tree decl;
    754. 

    755. 

  755. 		          if (objc_receiver_context
    756. 

  756. 			      &amp;&amp; ! strcmp (IDENTIFIER_POINTER ($1), &quot;super&quot;))
    757. 

  757. 			    /* we have a message to super */
    758. 

  758. 			    $$ = get_super_receiver ();
    759. 

  759. 			  else if (objc_method_context
    760. 

  760. 				   &amp;&amp; (decl = is_ivar (objc_ivar_chain, $1)))
    761. 

  761. 			    {
    762. 

  762. 			      if (is_private (decl))
    763. 

  763. 				$$ = error_mark_node;
    764. 

  764. 			      else
    765. 

  765. 				$$ = build_ivar_reference ($1);
    766. 

  766. 			    }
    767. 

  767. 			  else
    768. 

  768. 			    {
    769. 

  769. 			      if (IDENTIFIER_GLOBAL_VALUE ($1) != error_mark_node
    770. 

  770. 				  || IDENTIFIER_ERROR_LOCUS ($1) != current_function_decl)
    771. 

  771. 				{
    772. 

  772. 				  error (&quot;`%s' undeclared (first use in this function)&quot;,
    773. 

  773. 					 IDENTIFIER_POINTER ($1));
    774. 

  774. 

  775. 				  if (! undeclared_variable_notice)
    776. 

  776. 				    {
    777. 

  777. 				      error (&quot;(Each undeclared identifier is reported only once&quot;);
    778. 

  778. 				      error (&quot;for each function it appears in.)&quot;);
    779. 

  779. 				      undeclared_variable_notice = 1;
    780. 

  780. 				    }
    781. 

  781. 				}
    782. 

  782. 			      $$ = error_mark_node;
    783. 

  783. 			      /* Prevent repeated error messages.  */
    784. 

  784. 			      IDENTIFIER_GLOBAL_VALUE ($1) = error_mark_node;
    785. 

  785. 			      IDENTIFIER_ERROR_LOCUS ($1) = current_function_decl;
    786. 

  786. 			    }
    787. 

  787. 			}
    788. 

  788. 		    }
    789. 

  789. 		  else if (TREE_TYPE ($$) == error_mark_node)
    790. 

  790. 		    $$ = error_mark_node;
    791. 

  791. 		  else if (C_DECL_ANTICIPATED ($$))
    792. 

  792. 		    {
    793. 

  793. 		      /* The first time we see a build-in function used,
    794. 

  794. 			 if it has not been declared.  */
    795. 

  795. 		      C_DECL_ANTICIPATED ($$) = 0;
    796. 

  796. 		      if (yychar == YYEMPTY)
    797. 

  797. 			yychar = YYLEX;
    798. 

  798. 		      if (yychar == '(')
    799. 

  799. 			{
    800. 

  800. 			  /* Omit the implicit declaration we
    801. 

  801. 			     would ordinarily do, so we don't lose
    802. 

  802. 			     the actual built in type.
    803. 

  803. 			     But print a diagnostic for the mismatch.  */
    804. 

  804. 			  if (objc_method_context
    805. 

  805. 			      &amp;&amp; is_ivar (objc_ivar_chain, $1))
    806. 

  806. 			    error (&quot;Instance variable `%s' implicitly declared as function&quot;,
    807. 

  807. 				   IDENTIFIER_POINTER (DECL_NAME ($$)));
    808. 

  808. 			  else
    809. 

  809. 			    if (TREE_CODE ($$) != FUNCTION_DECL)
    810. 

  810. 			      error (&quot;`%s' implicitly declared as function&quot;,
    811. 

  811. 				     IDENTIFIER_POINTER (DECL_NAME ($$)));
    812. 

  812. 			  else if ((TYPE_MODE (TREE_TYPE (TREE_TYPE ($$)))
    813. 

  813. 				    != TYPE_MODE (integer_type_node))
    814. 

  814. 				   &amp;&amp; (TREE_TYPE (TREE_TYPE ($$))
    815. 

  815. 				       != void_type_node))
    816. 

  816. 			    pedwarn (&quot;type mismatch in implicit declaration for built-in function `%s'&quot;,
    817. 

  817. 				     IDENTIFIER_POINTER (DECL_NAME ($$)));
    818. 

  818. 			  /* If it really returns void, change that to int.  */
    819. 

  819. 			  if (TREE_TYPE (TREE_TYPE ($$)) == void_type_node)
    820. 

  820. 			    TREE_TYPE ($$)
    821. 

  821. 			      = build_function_type (integer_type_node,
    822. 

  822. 						     TYPE_ARG_TYPES (TREE_TYPE ($$)));
    823. 

  823. 			}
    824. 

  824. 		      else
    825. 

  825. 			pedwarn (&quot;built-in function `%s' used without declaration&quot;,
    826. 

  826. 				 IDENTIFIER_POINTER (DECL_NAME ($$)));
    827. 

  827. 

  828. 		      /* Do what we would ordinarily do when a fn is used.  */
    829. 

  829. 		      assemble_external ($$);
    830. 

  830. 		      TREE_USED ($$) = 1;
    831. 

  831. 		    }
    832. 

  832. 		  else
    833. 

  833. 		    {
    834. 

  834. 		      assemble_external ($$);
    835. 

  835. 		      TREE_USED ($$) = 1;
    836. 

  836. 		      /* we have a definition - still check if iVariable */
    837. 

  837. 

  838. 		      if (!objc_receiver_context
    839. 

  839. 			  || (objc_receiver_context
    840. 

  840. 			      &amp;&amp; strcmp (IDENTIFIER_POINTER ($1), &quot;super&quot;)))
    841. 

  841.                         {
    842. 

  842. 			  tree decl;
    843. 

  843. 

  844. 			  if (objc_method_context
    845. 

  845. 			      &amp;&amp; (decl = is_ivar (objc_ivar_chain, $1)))
    846. 

  846.                             {
    847. 

  847.                               if (IDENTIFIER_LOCAL_VALUE ($1))
    848. 

  848.                                 warning (&quot;local declaration of `%s' hides instance variable&quot;,
    849. 

  849. 	                                 IDENTIFIER_POINTER ($1));
    850. 

  850.                               else
    851. 

  851.  				{
    852. 

  852.  				  if (is_private (decl))
    853. 

  853.  				    $$ = error_mark_node;
    854. 

  854.  				  else
    855. 

  855.  				    $$ = build_ivar_reference ($1);
    856. 

  856.  				}
    857. 

  857.                             }
    858. 

  858. 			}
    859. 

  859.                       else /* we have a message to super */
    860. 

  860. 		        $$ = get_super_receiver ();
    861. 

  861. 		    }
    862. 

    863. 

  863. 		  if (TREE_CODE ($$) == CONST_DECL)
    864. 

  864. 		    {
    865. 

  865. 		      $$ = DECL_INITIAL ($$);
    866. 

  866. 		      /* This is to prevent an enum whose value is 0
    867. 

  867. 			 from being considered a null pointer constant.  */
    868. 

  868. 		      $$ = build1 (NOP_EXPR, TREE_TYPE ($$), $$);
    869. 

  869. 		      TREE_CONSTANT ($$) = 1;
    870. 

  870. 		    }
    871. 

  871. 		}
    872. 

  872. 	| CONSTANT
    873. 

  873. 	| string
    874. 

  874. 		{ $$ = combine_strings ($1); }
    875. 

  875. 	| '(' expr ')'
    876. 

  876. 		{ char class = TREE_CODE_CLASS (TREE_CODE ($2));
    877. 

  877. 		  if (class == 'e' || class == '1'
    878. 

  878. 		      || class == '2' || class == '&lt;')
    879. 

  879. 		    C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
    880. 

  880. 		  $$ = $2; }
    881. 

  881. 	| '(' error ')'
    882. 

  882. 		{ $$ = error_mark_node; }
    883. 

  883. 	| '('
    884. 

  884. 		{ if (current_function_decl == 0)
    885. 

  885. 		    {
    886. 

  886. 		      error (&quot;braced-group within expression allowed only inside a function&quot;);
    887. 

  887. 		      YYERROR;
    888. 

  888. 		    }
    889. 

  889. 		  /* We must force a BLOCK for this level
    890. 

  890. 		     so that, if it is not expanded later,
    891. 

  891. 		     there is a way to turn off the entire subtree of blocks
    892. 

  892. 		     that are contained in it.  */
    893. 

  893. 		  keep_next_level ();
    894. 

  894. 		  push_iterator_stack ();
    895. 

  895. 		  push_label_level ();
    896. 

  896. 		  $&lt;ttype&gt;$ = expand_start_stmt_expr (); }
    897. 

  897. 	  compstmt ')'
    898. 

  898. 		{ tree rtl_exp;
    899. 

  899. 		  if (pedantic)
    900. 

  900. 		    pedwarn (&quot;ANSI C forbids braced-groups within expressions&quot;);
    901. 

  901. 		  pop_iterator_stack ();
    902. 

  902. 		  pop_label_level ();
    903. 

  903. 		  rtl_exp = expand_end_stmt_expr ($&lt;ttype&gt;2);
    904. 

  904. 		  /* The statements have side effects, so the group does.  */
    905. 

  905. 		  TREE_SIDE_EFFECTS (rtl_exp) = 1;
    906. 

    907. 

  907. 		  if (TREE_CODE ($3) == BLOCK)
    908. 

  908. 		    {
    909. 

  909. 		      /* Make a BIND_EXPR for the BLOCK already made.  */
    910. 

  910. 		      $$ = build (BIND_EXPR, TREE_TYPE (rtl_exp),
    911. 

  911. 				  NULL_TREE, rtl_exp, $3);
    912. 

  912. 		      /* Remove the block from the tree at this point.
    913. 

  913. 			 It gets put back at the proper place
    914. 

  914. 			 when the BIND_EXPR is expanded.  */
    915. 

  915. 		      delete_block ($3);
    916. 

  916. 		    }
    917. 

  917. 		  else
    918. 

  918. 		    $$ = $3;
    919. 

  919. 		}
    920. 

  920. 	| primary '(' exprlist ')'   %prec '.'
    921. 

  921. 		{ 
    922. 

  922. #ifdef MODERN_OBJC_SYNTAX
    923. 

  923.                   if (doing_objc_thang &amp;&amp; flag_modern_objc_syntax &amp;&amp; 
    924. 

  924.                       TREE_CODE ($1) == MODERN_MESSAGE_EXPR)
    925. 

  925.                     $$ = build_modern_message_expression($1, $3);
    926. 

  926.                   else
    927. 

  927. #endif
    928. 

  928.                     $$ = build_function_call ($1, $3); 
    929. 

  929.                 }
    930. 

  930. 	| primary '[' expr ']'   %prec '.'
    931. 

  931. 		{ $$ = build_array_ref ($1, $3); }
    932. 

  932. 	| CLASSNAME '.' identifier
    933. 

  933. 		{
    934. 

  934. #ifdef MODERN_OBJC_SYNTAX
    935. 

  935.                   if (doing_objc_thang &amp;&amp; flag_modern_objc_syntax)
    936. 

  936.                     {
    937. 

  937.                       $1 = get_class_reference ($1);
    938. 

  938.                       $$ = build (MODERN_MESSAGE_EXPR, TREE_TYPE ($1), $1, $3);
    939. 

  939.                     }
    940. 

  940.                   else
    941. 

  941. #endif
    942. 

  942. 		    $$ = error_mark_node;
    943. 

  943.                 }
    944. 

  944. 	| primary '.' identifier
    945. 

  945. 		{
    946. 

  946.                   if (doing_objc_thang
    947. 

  947. #ifdef MODERN_OBJC_SYNTAX
    948. 

  948. 		      &amp;&amp; flag_modern_objc_syntax
    949. 

  949. #endif
    950. 

  950. 		      )
    951. 

  951.                     {
    952. 

  952. #ifdef MODERN_OBJC_SYNTAX
    953. 

  953. 		      if (looks_like_ansistyle_message_ref($1, $3))
    954. 

  954.                         $$ = build (MODERN_MESSAGE_EXPR, TREE_TYPE ($1), 
    955. 

  955.                                     $1, $3);
    956. 

  956. 		      else
    957. 

  957. #endif
    958. 

  958. 		      if (is_public ($1, $3))
    959. 

  959. 			$$ = build_component_ref ($1, $3);
    960. 

  960. 		      else
    961. 

  961. 			$$ = error_mark_node;
    962. 

  962. 		    }
    963. 

  963.                   else
    964. 

  964. 		    $$ = build_component_ref ($1, $3);
    965. 

  965. 		}
    966. 

  966. 	| primary POINTSAT identifier
    967. 

  967. 		{
    968. 

  968.                   tree expr = build_indirect_ref ($1, &quot;-&gt;&quot;);
    969. 

    970. 

  970.                   if (doing_objc_thang)
    971. 

  971.                     {
    972. 

  972. 		      if (is_public (expr, $3))
    973. 

  973. 			$$ = build_component_ref (expr, $3);
    974. 

  974. 		      else
    975. 

  975. 			$$ = error_mark_node;
    976. 

  976. 		    }
    977. 

  977.                   else
    978. 

  978.                     $$ = build_component_ref (expr, $3);
    979. 

  979. 		}
    980. 

  980. 	| primary PLUSPLUS
    981. 

  981. 		{ $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
    982. 

  982. 	| primary MINUSMINUS
    983. 

  983. 		{ $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
    984. 

  984. 	| objcmessageexpr
    985. 

  985. 		{ $$ = build_message_expr ($1, 0); }
    986. 

  986. 	| objcselectorexpr
    987. 

  987. 		{ $$ = build_selector_expr ($1); }
    988. 

  988. 	| objcprotocolexpr
    989. 

  989. 		{ $$ = build_protocol_expr ($1); }
    990. 

  990. 	| objcencodeexpr
    991. 

  991. 		{ $$ = build_encode_expr ($1); }
    992. 

  992. 	| objc_string
    993. 

  993. 		{ $$ = build_objc_string_object ($1); }
    994. 

  994. 	;
    995. 

    996. 

  996. /* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it.  */
    997. 

  997. string:
    998. 

  998. 	  STRING
    999. 

  999. 	| string STRING
    1000. 

  1000. 		{ $$ = chainon ($1, $2); }
    1001. 

  1001. 	;
    1002. 

    1003. 

  1003. /* Produces an OBJC_STRING_CST with perhaps more OBJC_STRING_CSTs chained
    1004. 

  1004.    onto it.  */
    1005. 

  1005. objc_string:
    1006. 

  1006. 	  OBJC_STRING
    1007. 

  1007. 	| objc_string OBJC_STRING
    1008. 

  1008. 		{ $$ = chainon ($1, $2); }
    1009. 

  1009. 	;
    1010. 

    1011. 

  1011. old_style_parm_decls:
    1012. 

  1012. 	/* empty */
    1013. 

  1013. 	| datadecls
    1014. 

  1014. 	| datadecls ELLIPSIS
    1015. 

  1015. 		/* ... is used here to indicate a varargs function.  */
    1016. 

  1016. 		{ c_mark_varargs ();
    1017. 

  1017. 		  if (pedantic)
    1018. 

  1018. 		    pedwarn (&quot;ANSI C does not permit use of `varargs.h'&quot;); }
    1019. 

  1019. 	;
    1020. 

  1020. 

  1021. /* The following are analogous to lineno_decl, decls and decl
    1022. 

  1022.    except that they do not allow nested functions.
    1023. 

  1023.    They are used for old-style parm decls.  */
    1024. 

  1024. lineno_datadecl:
    1025. 

  1025. 	  save_filename save_lineno datadecl
    1026. 

  1026. 		{ }
    1027. 

  1027. 	;
    1028. 

  1028. 

  1029. datadecls:
    1030. 

  1030. 	lineno_datadecl
    1031. 

  1031. 	| errstmt
    1032. 

  1032. 	| datadecls lineno_datadecl
    1033. 

  1033. 	| lineno_datadecl errstmt
    1034. 

  1034. 	;
    1035. 

  1035. 

  1036. /* We don't allow prefix attributes here because they cause reduce/reduce
    1037. 

  1037.    conflicts: we can't know whether we're parsing a function decl with
    1038. 

  1038.    attribute suffix, or function defn with attribute prefix on first old
    1039. 

  1039.    style parm.  */
    1040. 

  1040. datadecl:
    1041. 

  1041. 	typed_declspecs_no_prefix_attr setspecs initdecls ';'
    1042. 

  1042. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    1043. 

  1043. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    1044. 

  1044. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    1045. 

  1045. 		  resume_momentary ($2); }
    1046. 

  1046. 	| declmods_no_prefix_attr setspecs notype_initdecls ';'
    1047. 

  1047. 		{ current_declspecs = TREE_VALUE (declspec_stack);	
    1048. 

  1048. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    1049. 

  1049. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    1050. 

  1050. 		  resume_momentary ($2); }
    1051. 

  1051. 	| typed_declspecs_no_prefix_attr ';'
    1052. 

  1052. 		{ shadow_tag_warned ($1, 1);
    1053. 

  1053. 		  pedwarn (&quot;empty declaration&quot;); }
    1054. 

  1054. 	| declmods_no_prefix_attr ';'
    1055. 

  1055. 		{ pedwarn (&quot;empty declaration&quot;); }
    1056. 

  1056. 	;
    1057. 

  1057. 

  1058. /* This combination which saves a lineno before a decl
    1059. 

  1059.    is the normal thing to use, rather than decl itself.
    1060. 

  1060.    This is to avoid shift/reduce conflicts in contexts
    1061. 

  1061.    where statement labels are allowed.  */
    1062. 

  1062. lineno_decl:
    1063. 

  1063. 	  save_filename save_lineno decl
    1064. 

  1064. 		{ }
    1065. 

  1065. 	;
    1066. 

  1066. 

  1067. decls:
    1068. 

  1068. 	lineno_decl
    1069. 

  1069. 	| errstmt
    1070. 

  1070. 	| decls lineno_decl
    1071. 

  1071. 	| lineno_decl errstmt
    1072. 

  1072. 	;
    1073. 

  1073. 

  1074. /* records the type and storage class specs to use for processing
    1075. 

  1075.    the declarators that follow.
    1076. 

  1076.    Maintains a stack of outer-level values of current_declspecs,
    1077. 

  1077.    for the sake of parm declarations nested in function declarators.  */
    1078. 

  1078. setspecs: /* empty */
    1079. 

  1079. 		{ $$ = suspend_momentary ();
    1080. 

  1080. 		  pending_xref_error ();
    1081. 

  1081. 		  declspec_stack = tree_cons (prefix_attributes,
    1082. 

  1082. 					      current_declspecs,
    1083. 

  1083. 					      declspec_stack);
    1084. 

  1084. 		  split_specs_attrs ($&lt;ttype&gt;0,
    1085. 

  1085. 				     &amp;current_declspecs, &amp;prefix_attributes); }
    1086. 

  1086. 	;
    1087. 

  1087. 

  1088. /* ??? Yuck.  See after_type_declarator.  */
    1089. 

  1089. setattrs: /* empty */
    1090. 

  1090. 		{ prefix_attributes = chainon (prefix_attributes, $&lt;ttype&gt;0); }
    1091. 

  1091. 	;
    1092. 

  1092. 

  1093. decl:
    1094. 

  1094. 	typed_declspecs setspecs initdecls ';'
    1095. 

  1095. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    1096. 

  1096. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    1097. 

  1097. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    1098. 

  1098. 		  resume_momentary ($2); }
    1099. 

  1099. 	| declmods setspecs notype_initdecls ';'
    1100. 

  1100. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    1101. 

  1101. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    1102. 

  1102. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    1103. 

  1103. 		  resume_momentary ($2); }
    1104. 

  1104. 	| typed_declspecs setspecs nested_function
    1105. 

  1105. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    1106. 

  1106. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    1107. 

  1107. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    1108. 

  1108. 		  resume_momentary ($2); }
    1109. 

  1109. 	| declmods setspecs notype_nested_function
    1110. 

  1110. 		{ current_declspecs = TREE_VALUE (declspec_stack);
    1111. 

  1111. 		  prefix_attributes = TREE_PURPOSE (declspec_stack);
    1112. 

  1112. 		  declspec_stack = TREE_CHAIN (declspec_stack);
    1113. 

  1113. 		  resume_momentary ($2); }
    1114. 

  1114. 	| typed_declspecs ';'
    1115. 

  1115. 		{ shadow_tag ($1); }
    1116. 

  1116. 	| declmods ';'
    1117. 

  1117. 		{ pedwarn (&quot;empty declaration&quot;); }
    1118. 

  1118. 	| extension decl
    1119. 

  1119. 		{ pedantic = $&lt;itype&gt;1; }
    1120. 

  1120. 	;
    1121. 

  1121. 

  1122. /* Declspecs which contain at least one type specifier or typedef name.
    1123. 

  1123.    (Just `const' or `volatile' is not enough.)
    1124. 

  1124.    A typedef'd name following these is taken as a name to be declared.
    1125. 

  1125.    Declspecs have a non-NULL TREE_VALUE, attributes do not.  */
    1126. 

  1126. 

  1127. typed_declspecs:
    1128. 

  1128. 	  typespec reserved_declspecs
    1129. 

  1129. 		{ $$ = tree_cons (NULL_TREE, $1, $2); }
    1130. 

  1130. 	| declmods typespec reserved_declspecs
    1131. 

  1131. 		{ $$ = chainon ($3, tree_cons (NULL_TREE, $2, $1)); }
    1132. 

  1132. 	;
    1133. 

  1133. 

  1134. reserved_declspecs:  /* empty */
    1135. 

  1135. 		{ $$ = NULL_TREE; }
    1136. 

  1136. 	| reserved_declspecs typespecqual_reserved
    1137. 

  1137. 		{ $$ = tree_cons (NULL_TREE, $2, $1); }
    1138. 

  1138. 	| reserved_declspecs SCSPEC
    1139. 

  1139. 		{ if (extra_warnings)
    1140. 

  1140. 		    warning (&quot;`%s' is not at beginning of declaration&quot;,
    1141. 

  1141. 			     IDENTIFIER_POINTER ($2));
    1142. 

  1142. 		  $$ = tree_cons (NULL_TREE, $2, $1); }
    1143. 

  1143. 	| reserved_declspecs attributes
    1144. 

  1144. 		{ $$ = tree_cons ($2, NULL_TREE, $1); }
    1145. 

  1145. 	;
    1146. 

    1147. 

  1147. typed_declspecs_no_prefix_attr:
    1148. 

  1148. 	  typespec reserved_declspecs_no_prefix_attr
    1149. 

  1149. 		{ $$ = tree_cons (NULL_TREE, $1, $2); }
    1150. 

  1150. 	| declmods_no_prefix_attr typespec reserved_declspecs_no_prefix_attr
    1151. 

  1151. 		{ $$ = chainon ($3, tree_cons (NULL_TREE, $2, $1)); }
    1152. 

  1152. 	;
    1153. 

    1154. 

  1154. reserved_declspecs_no_prefix_attr:
    1155. 

  1155. 	  /* empty */
    1156. 

  1156. 		{ $$ = NULL_TREE; }
    1157. 

  1157. 	| reserved_declspecs_no_prefix_attr typespecqual_reserved
    1158. 

  1158. 		{ $$ = tree_cons (NULL_TREE, $2, $1); }
    1159. 

  1159. 	| reserved_declspecs_no_prefix_attr SCSPEC
    1160. 

  1160. 		{ if (extra_warnings)
    1161. 

  1161. 		    warning (&quot;`%s' is not at beginning of declaration&quot;,
    1162. 

  1162. 			     IDENTIFIER_POINTER ($2));
    1163. 

  1163. 		  $$ = tree_cons (NULL_TREE, $2, $1); }
    1164. 

  1164. 	;
    1165. 

  1165. 

  1166. /* List of just storage classes, type modifiers, and prefix attributes.
    1167. 

  1167.    A declaration can start with just this, but then it cannot be used
    1168. 

  1168.    to redeclare a typedef-name.
    1169. 

  1169.    Declspecs have a non-NULL TREE_VALUE, attributes do not.  */
    1170. 

  1170. 

  1171. declmods:
    1172. 

  1172. 	  declmods_no_prefix_attr
    1173. 

  1173. 		{ $$ = $1; }
    1174. 

  1174. 	| attributes
    1175. 

  1175. 		{ $$ = tree_cons ($1, NULL_TREE, NULL_TREE); }
    1176. 

  1176. 	| declmods declmods_no_prefix_attr
    1177. 

  1177. 		{ $$ = chainon ($2, $1); }
    1178. 

  1178. 	| declmods attributes
    1179. 

  1179. 		{ $$ = tree_cons ($2, NULL_TREE, $1); }
    1180. 

  1180. 	;
    1181. 

  1181. 

  1182. declmods_no_prefix_attr:
    1183. 

  1183. 	  TYPE_QUAL
    1184. 

  1184. 		{ $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
    1185. 

  1185. 		  TREE_STATIC ($$) = 1; }
    1186. 

  1186. 	| SCSPEC
    1187. 

  1187. 		{ $$ = tree_cons (NULL_TREE, $1, NULL_TREE); }
    1188. 

  1188. 	| declmods_no_prefix_attr TYPE_QUAL
    1189. 

  1189. 		{ $$ = tree_cons (NULL_TREE, $2, $1);
    1190. 

  1190. 		  TREE_STATIC ($$) = 1; }
    1191. 

  1191. 	| declmods_no_prefix_attr SCSPEC
    1192. 

  1192. 		{ if (extra_warnings &amp;&amp; TREE_STATIC ($1))
    1193. 

  1193. 		    warning (&quot;`%s' is not at beginning of declaration&quot;,
    1194. 

  1194. 			     IDENTIFIER_POINTER ($2));
    1195. 

  1195. 		  $$ = tree_cons (NULL_TREE, $2, $1);
    1196. 

  1196. 		  TREE_STATIC ($$) = TREE_STATIC ($1); }
    1197. 

  1197. 	;
    1198. 

    1199. 

    1200. 

  1200. /* Used instead of declspecs where storage classes are not allowed
    1201. 

  1201.    (that is, for typenames and structure components).
    1202. 

  1202.    Don't accept a typedef-name if anything but a modifier precedes it.  */
    1203. 

    1204. 

  1204. typed_typespecs:
    1205. 

  1205. 	  typespec reserved_typespecquals
    1206. 

  1206. 		{ $$ = tree_cons (NULL_TREE, $1, $2); }
    1207. 

  1207. 	| nonempty_type_quals typespec reserved_typespecquals
    1208. 

  1208. 		{ $$ = chainon ($3, tree_cons (NULL_TREE, $2, $1)); }
    1209. 

  1209. 	;
    1210. 

    1211. 

  1211. reserved_typespecquals:  /* empty */
    1212. 

  1212. 		{ $$ = NULL_TREE; }
    1213. 

  1213. 	| reserved_typespecquals typespecqual_reserved
    1214. 

  1214. 		{ $$ = tree_cons (NULL_TREE, $2, $1); }
    1215. 

  1215. 	;
    1216. 

    1217. 

  1217. /* A typespec (but not a type qualifier).
    1218. 

  1218.    Once we have seen one of these in a declaration,
    1219. 

  1219.    if a typedef name appears then it is being redeclared.  */
    1220. 

    1221. 

  1221. typespec: TYPESPEC
    1222. 

  1222. 	| structsp
    1223. 

  1223. 	| TYPENAME
    1224. 

  1224. 		{ /* For a typedef name, record the meaning, not the name.
    1225. 

  1225. 		     In case of `foo foo, bar;'.  */
    1226. 

  1226. 		  $$ = lookup_name ($1); }
    1227. 

  1227. 	| CLASSNAME protocolrefs
    1228. 

  1228. 		{ $$ = get_static_reference ($1, $2); }
    1229. 

  1229. 	| OBJECTNAME protocolrefs
    1230. 

  1230. 		{ $$ = get_object_reference ($2); }
    1231. 

  1231. 

  1232. /* Make &quot;&lt;SomeProtocol&gt;&quot; equivalent to &quot;id &lt;SomeProtocol&gt;&quot;
    1233. 

  1233.    - <a href="mailto:nisse@lysator.liu.se">nisse@lysator.liu.se</a> */
    1234. 

  1234.         | non_empty_protocolrefs
    1235. 

  1235.                 { $$ = get_object_reference ($1); }
    1236. 

  1236. 	| TYPEOF '(' expr ')'
    1237. 

  1237. 		{ $$ = TREE_TYPE ($3); }
    1238. 

  1238. 	| TYPEOF '(' typename ')'
    1239. 

  1239. 		{ $$ = groktypename ($3); }
    1240. 

  1240. 	;
    1241. 

  1241. 

  1242. /* A typespec that is a reserved word, or a type qualifier.  */
    1243. 

  1243. 

  1244. typespecqual_reserved: TYPESPEC
    1245. 

  1245. 	| TYPE_QUAL
    1246. 

  1246. 	| structsp
    1247. 

  1247. 	;
    1248. 

  1248. 

  1249. initdecls:
    1250. 

  1250. 	initdcl
    1251. 

  1251. 	| initdecls ',' initdcl
    1252. 

  1252. 	;
    1253. 

  1253. 

  1254. notype_initdecls:
    1255. 

  1255. 	notype_initdcl
    1256. 

  1256. 	| notype_initdecls ',' initdcl
    1257. 

  1257. 	;
    1258. 

  1258. 

  1259. maybeasm:
    1260. 

  1260. 	  /* empty */
    1261. 

  1261. 		{ $$ = NULL_TREE; }
    1262. 

  1262. 	| ASM_KEYWORD '(' string ')'
    1263. 

  1263. 		{ if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
    1264. 

  1264. 		  $$ = $3;
    1265. 

  1265. 		}
    1266. 

  1266. 	;
    1267. 

  1267. 

  1268. initdcl:
    1269. 

  1269. 	  declarator maybeasm maybe_attribute '='
    1270. 

  1270. 		{ $&lt;ttype&gt;$ = start_decl ($1, current_declspecs, 1,
    1271. 

  1271. 					  $3, prefix_attributes);
    1272. 

  1272. 		  start_init ($&lt;ttype&gt;$, $2, global_bindings_p ()); }
    1273. 

  1273. 	  init
    1274. 

  1274. /* Note how the declaration of the variable is in effect while its init is parsed! */
    1275. 

  1275. 		{ finish_init ();
    1276. 

  1276. 		  finish_decl ($&lt;ttype&gt;5, $6, $2); }
    1277. 

  1277. 	| declarator maybeasm maybe_attribute
    1278. 

  1278. 		{ 
    1279. 

  1279. #ifdef MODERN_OBJC_SYNTAX
    1280. 

  1280.                   if (flag_modern_objc_syntax &amp;&amp; objc_interface_context &amp;&amp;
    1281. 

  1281.                       looks_like_ansistyle_method_decl($1, current_declspecs))
    1282. 

  1282.                     { 
    1283. 

  1283.                     build_method_decl_from_ansiproto($1, 
    1284. 

  1284. 			current_declspecs, objc_interface_context);
    1285. 

  1285.                     } 
    1286. 

  1286.                   else 
    1287. 

  1287.                     {
    1288. 

  1288. #endif
    1289. 

  1289. 		    tree d = start_decl ($1, current_declspecs, 0,
    1290. 

  1290. 				       $3, prefix_attributes);
    1291. 

  1291. 		    finish_decl (d, NULL_TREE, $2); 
    1292. 

  1292. #ifdef MODERN_OBJC_SYNTAX
    1293. 

  1293. 		    }
    1294. 

  1294. #endif
    1295. 

  1295.                 }
    1296. 

  1296. 	;
    1297. 

  1297. 

  1298. notype_initdcl:
    1299. 

  1299. 	  notype_declarator maybeasm maybe_attribute '='
    1300. 

  1300. 		{ $&lt;ttype&gt;$ = start_decl ($1, current_declspecs, 1,
    1301. 

  1301. 					  $3, prefix_attributes);
    1302. 

  1302. 		  start_init ($&lt;ttype&gt;$, $2, global_bindings_p ()); }
    1303. 

  1303. 	  init
    1304. 

  1304. /* Note how the declaration of the variable is in effect while its init is parsed! */
    1305. 

  1305. 		{ finish_init ();
    1306. 

  1306. 		  decl_attributes ($&lt;ttype&gt;5, $3, prefix_attributes);
    1307. 

  1307. 		  finish_decl ($&lt;ttype&gt;5, $6, $2); }
    1308. 

  1308. 	| notype_declarator maybeasm maybe_attribute
    1309. 

  1309. 		{ tree d = start_decl ($1, current_declspecs, 0,
    1310. 

  1310. 				       $3, prefix_attributes);
    1311. 

  1311. 		  finish_decl (d, NULL_TREE, $2); }
    1312. 

  1312. 	;
    1313. 

  1313. /* the * rules are dummies to accept the Apollo extended syntax
    1314. 

  1314.    so that the header files compile. */
    1315. 

  1315. maybe_attribute:
    1316. 

  1316.       /* empty */
    1317. 

  1317.   		{ $$ = NULL_TREE; }
    1318. 

  1318. 	| attributes
    1319. 

  1319. 		{ $$ = $1; }
    1320. 

  1320. 	;
    1321. 

  1321.  
    1322. 

  1322. attributes:
    1323. 

  1323.       attribute
    1324. 

  1324. 		{ $$ = $1; }
    1325. 

  1325. 	| attributes attribute
    1326. 

  1326. 		{ $$ = chainon ($1, $2); }
    1327. 

  1327. 	;
    1328. 

  1328. 

  1329. attribute:
    1330. 

  1330.       ATTRIBUTE '(' '(' attribute_list ')' ')'
    1331. 

  1331. 		{ $$ = $4; }
    1332. 

  1332. 	;
    1333. 

  1333. 

  1334. attribute_list:
    1335. 

  1335.       attrib
    1336. 

  1336. 		{ $$ = $1; }
    1337. 

  1337. 	| attribute_list ',' attrib
    1338. 

  1338. 		{ $$ = chainon ($1, $3); }
    1339. 

  1339. 	;
    1340. 

  1340.  
    1341. 

  1341. attrib:
    1342. 

  1342.     /* empty */
    1343. 

  1343. 		{ $$ = NULL_TREE; }
    1344. 

  1344. 	| any_word
    1345. 

  1345. 		{ $$ = build_tree_list ($1, NULL_TREE); }
    1346. 

  1346. 	| any_word '(' IDENTIFIER ')'
    1347. 

  1347. 		{ $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
    1348. 

  1348. 	| any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
    1349. 

  1349. 		{ $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
    1350. 

  1350. 	| any_word '(' exprlist ')'
    1351. 

  1351. 		{ $$ = build_tree_list ($1, $3); }
    1352. 

  1352. 	;
    1353. 

  1353. 

  1354. /* This still leaves out most reserved keywords,
    1355. 

  1355.    shouldn't we include them?  */
    1356. 

  1356. 

  1357. any_word:
    1358. 

  1358. 	  identifier
    1359. 

  1359. 	| SCSPEC
    1360. 

  1360. 	| TYPESPEC
    1361. 

  1361. 	| TYPE_QUAL
    1362. 

  1362. 	;
    1363. 

  1363. 
    1364. 

  1364. /* Initializers.  `init' is the entry point.  */
    1365. 

  1365. 

  1366. init:
    1367. 

  1367. 	expr_no_commas
    1368. 

  1368. 	| '{'
    1369. 

  1369. 		{ really_start_incremental_init (NULL_TREE);
    1370. 

  1370. 		  /* Note that the call to clear_momentary
    1371. 

  1371. 		     is in process_init_element.  */
    1372. 

  1372. 		  push_momentary (); }
    1373. 

  1373. 	  initlist_maybe_comma '}'
    1374. 

  1374. 		{ $$ = pop_init_level (0);
    1375. 

  1375. 		  if ($$ == error_mark_node
    1376. 

  1376. 		      &amp;&amp; ! (yychar == STRING || yychar == CONSTANT))
    1377. 

  1377. 		    pop_momentary ();
    1378. 

  1378. 		  else
    1379. 

  1379. 		    pop_momentary_nofree (); }
    1380. 

  1380. 

  1381. 	| error
    1382. 

  1382. 		{ $$ = error_mark_node; }
    1383. 

  1383. 	;
    1384. 

  1384. 

  1385. /* `initlist_maybe_comma' is the guts of an initializer in braces.  */
    1386. 

  1386. initlist_maybe_comma:
    1387. 

  1387. 	  /* empty */
    1388. 

  1388. 		{ if (pedantic)
    1389. 

  1389. 		    pedwarn (&quot;ANSI C forbids empty initializer braces&quot;); }
    1390. 

  1390. 	| initlist1 maybecomma
    1391. 

  1391. 	;
    1392. 

  1392. 

  1393. initlist1:
    1394. 

  1394. 	  initelt
    1395. 

  1395. 	| initlist1 ',' initelt
    1396. 

  1396. 	;
    1397. 

  1397. 

  1398. /* `initelt' is a single element of an initializer.
    1399. 

  1399.    It may use braces.  */
    1400. 

  1400. initelt:
    1401. 

  1401. 	  designator_list '=' initval
    1402. 

  1402. 	| designator initval
    1403. 

  1403. 	| identifier ':'
    1404. 

  1404. 		{ set_init_label ($1); }
    1405. 

  1405. 	  initval
    1406. 

  1406. 	| initval
    1407. 

  1407. 	;
    1408. 

  1408. 

  1409. initval:
    1410. 

  1410. 	  '{'
    1411. 

  1411. 		{ push_init_level (0); }
    1412. 

  1412. 	  initlist_maybe_comma '}'
    1413. 

  1413. 		{ process_init_element (pop_init_level (0)); }
    1414. 

  1414. 	| expr_no_commas
    1415. 

  1415. 		{ process_init_element ($1); }
    1416. 

  1416. 	| error
    1417. 

  1417. 	;
    1418. 

  1418. 

  1419. designator_list:
    1420. 

  1420. 	  designator
    1421. 

  1421. 	| designator_list designator
    1422. 

  1422. 	;
    1423. 

  1423. 

  1424. designator:
    1425. 

  1425. 	  '.' identifier
    1426. 

  1426. 		{ set_init_label ($2); }
    1427. 

  1427. 	/* These are for labeled elements.  The syntax for an array element
    1428. 

  1428. 	   initializer conflicts with the syntax for an Objective-C message,
    1429. 

  1429. 	   so don't include these productions in the Objective-C grammar.  */
    1430. 

  1430. 	| objc_openbracket.expr_no_commas ELLIPSIS expr_no_commas ']' '='
    1431. 

  1431. 		{ set_init_index ($1, $3); }
    1432. 

  1432. 	  initelt
    1433. 

  1433. 	| objc_openbracket.expr_no_commas ']' '='
    1434. 

  1434. 		{ set_init_index ($1, NULL_TREE); }
    1435. 

  1435. 	  initelt
    1436. 

  1436. 	| objc_openbracket.expr_no_commas ']'
    1437. 

  1437. 		{ set_init_index ($1, NULL_TREE); }
    1438. 

  1438. 	  initelt
    1439. 

  1439. 	| identifier ':'
    1440. 

  1440. 		{ set_init_label ($1); }
    1441. 

  1441. 	  initelt
    1442. 

  1442. 	| '.' identifier '='
    1443. 

  1443. 		{ set_init_label ($2); }
    1444. 

  1444. 	  initelt
    1445. 

  1445. 	;
    1446. 

  1446. 
    1447. 

  1447. nested_function:
    1448. 

  1448. 	  declarator
    1449. 

  1449. 		{ push_c_function_context ();
    1450. 

  1450. 		  if (! start_function (current_declspecs, $1,
    1451. 

  1451. 					prefix_attributes, NULL_TREE, 1))
    1452. 

  1452. 		    {
    1453. 

  1453. 		      pop_c_function_context ();
    1454. 

  1454. 		      YYERROR1;
    1455. 

  1455. 		    }
    1456. 

  1456. 		  reinit_parse_for_function (); }
    1457. 

  1457. 	   old_style_parm_decls
    1458. 

  1458. 		{ store_parm_decls (); }
    1459. 

  1459. /* This used to use compstmt_or_error.
    1460. 

  1460.    That caused a bug with input `f(g) int g {}',
    1461. 

  1461.    where the use of YYERROR1 above caused an error
    1462. 

  1462.    which then was handled by compstmt_or_error.
    1463. 

  1463.    There followed a repeated execution of that same rule,
    1464. 

  1464.    which called YYERROR1 again, and so on.  */
    1465. 

  1465. 	  compstmt
    1466. 

  1466. 		{ finish_function (1);
    1467. 

  1467. 		  pop_c_function_context (); }
    1468. 

  1468. 	;
    1469. 

  1469. 

  1470. notype_nested_function:
    1471. 

  1471. 	  notype_declarator
    1472. 

  1472. 		{ push_c_function_context ();
    1473. 

  1473. 		  if (! start_function (current_declspecs, $1,
    1474. 

  1474. 					prefix_attributes, NULL_TREE, 1))
    1475. 

  1475. 		    {
    1476. 

  1476. 		      pop_c_function_context ();
    1477. 

  1477. 		      YYERROR1;
    1478. 

  1478. 		    }
    1479. 

  1479. 		  reinit_parse_for_function (); }
    1480. 

  1480. 	  old_style_parm_decls
    1481. 

  1481. 		{ store_parm_decls (); }
    1482. 

  1482. /* This used to use compstmt_or_error.
    1483. 

  1483.    That caused a bug with input `f(g) int g {}',
    1484. 

  1484.    where the use of YYERROR1 above caused an error
    1485. 

  1485.    which then was handled by compstmt_or_error.
    1486. 

  1486.    There followed a repeated execution of that same rule,
    1487. 

  1487.    which called YYERROR1 again, and so on.  */
    1488. 

  1488. 	  compstmt
    1489. 

  1489. 		{ finish_function (1);
    1490. 

  1490. 		  pop_c_function_context (); }
    1491. 

  1491. 	;
    1492. 

  1492. 

  1493. /* Any kind of declarator (thus, all declarators allowed
    1494. 

  1494.    after an explicit typespec).  */
    1495. 

  1495. 

  1496. declarator:
    1497. 

  1497. 	  after_type_declarator
    1498. 

  1498. 	| notype_declarator
    1499. 

  1499. 	;
    1500. 

  1500. 

  1501. /* A declarator that is allowed only after an explicit typespec.  */
    1502. 

  1502. 

  1503. after_type_declarator:
    1504. 

  1504. 	  '(' after_type_declarator ')'
    1505. 

  1505. 		{ $$ = $2; }
    1506. 

  1506. 	| after_type_declarator '(' parmlist_or_identifiers  %prec '.'
    1507. 

  1507. 		{ $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
    1508. 

  1508. /*	| after_type_declarator '(' error ')'  %prec '.'
    1509. 

  1509. 		{ $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
    1510. 

  1510. 		  poplevel (0, 0, 0); }  */
    1511. 

  1511. 	| after_type_declarator '[' expr ']'  %prec '.'
    1512. 

  1512. 		{ $$ = build_nt (ARRAY_REF, $1, $3); }
    1513. 

  1513. 	| after_type_declarator '[' ']'  %prec '.'
    1514. 

  1514. 		{ $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
    1515. 

  1515. 	| '*' type_quals after_type_declarator  %prec UNARY
    1516. 

  1516. 		{ $$ = make_pointer_declarator ($2, $3); }
    1517. 

  1517. 	/* ??? Yuck.  setattrs is a quick hack.  We can't use
    1518. 

  1518. 	   prefix_attributes because $1 only applies to this
    1519. 

  1519. 	   declarator.  We assume setspecs has already been done.
    1520. 

  1520. 	   setattrs also avoids 5 reduce/reduce conflicts (otherwise multiple
    1521. 

  1521. 	   attributes could be recognized here or in `attributes').  */
    1522. 

  1522. 	| attributes setattrs after_type_declarator
    1523. 

  1523. 		{ $$ = $3; }
    1524. 

  1524. 	| TYPENAME
    1525. 

  1525. 	| OBJECTNAME
    1526. 

  1526. 	;
    1527. 

  1527. 

  1528. /* Kinds of declarator that can appear in a parameter list
    1529. 

  1529.    in addition to notype_declarator.  This is like after_type_declarator
    1530. 

  1530.    but does not allow a typedef name in parentheses as an identifier
    1531. 

  1531.    (because it would conflict with a function with that typedef as arg).  */
    1532. 

  1532. 

  1533. parm_declarator:
    1534. 

  1534. 	  parm_declarator '(' parmlist_or_identifiers  %prec '.'
    1535. 

  1535. 		{ $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
    1536. 

  1536. /*	| parm_declarator '(' error ')'  %prec '.'
    1537. 

  1537. 		{ $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
    1538. 

  1538. 		  poplevel (0, 0, 0); }  */
    1539. 

  1539. 	| parm_declarator '[' expr ']'  %prec '.'
    1540. 

  1540. 		{ $$ = build_nt (ARRAY_REF, $1, $3); }
    1541. 

  1541. 	| parm_declarator '[' ']'  %prec '.'
    1542. 

  1542. 		{ $$ = build_nt (ARRAY_REF, $1, NULL_TREE); }
    1543. 

  1543. 	| '*' type_quals parm_declarator  %prec UNARY
    1544. 

  1544. 		{ $$ = make_pointer_declarator ($2, $3); }
    1545. 

  1545. 	/* ??? Yuck.  setattrs is a quick hack.  We can't use
    1546. 

  1546. 	   prefix_attributes because $1 only applies to this
    1547. 

  1547. 	   declarator.  We assume setspecs has already been done.
    1548. 

  1548. 	   setattrs also avoids 5 reduce/reduce conflicts (otherwise multiple
    1549. 

  1549. 	   attributes could be recognized here or in `attributes').  */
    1550. 

  1550. 	| attributes setattrs parm_declarator
    1551. 

  1551. 		{ $$ = $3; }
    1552. 

  1552. 	| TYPENAME
    1553. 

  1553. 	| OBJECTNAME
    1554. 

  1554. 	;
    1555. 

  1555. 

  1556. /* A declarator allowed whether or not there has been
    1557. 

  1557.    an explicit typespec.  These cannot redeclare a typedef-name.  */
    1558. 

  1558. 

  1559. notype_declarator:
    1560. 

  1560. 	  notype_declarator '(' parmlist_or_identifiers  %prec '.'
    1561. 

  1561. 		…
    1562.

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