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8d08fdba 1/* YACC parser for C++ syntax.
357a4089 2 Copyright (C) 1988, 89, 93, 94, 95, 1996 Free Software Foundation, Inc.
8d08fdba
MS
3 Hacked by Michael Tiemann (tiemann@cygnus.com)
4
5This file is part of GNU CC.
6
7GNU CC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GNU CC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU CC; see the file COPYING. If not, write to
e9fa0c7c
RK
19the Free Software Foundation, 59 Temple Place - Suite 330,
20Boston, MA 02111-1307, USA. */
8d08fdba
MS
21
22
23/* This grammar is based on the GNU CC grammar. */
24
25/* Note: Bison automatically applies a default action of "$$ = $1" for
26 all derivations; this is applied before the explicit action, if one
27 is given. Keep this in mind when reading the actions. */
28
8d08fdba 29%{
8926095f 30/* Cause the `yydebug' variable to be defined. */
8d08fdba 31#define YYDEBUG 1
8d08fdba
MS
32
33#include "config.h"
34
35#include <stdio.h>
36#include <errno.h>
37
38#include "tree.h"
39#include "input.h"
40#include "flags.h"
41#include "lex.h"
42#include "cp-tree.h"
e8abc66f 43#include "output.h"
8d08fdba
MS
44
45/* Since parsers are distinct for each language, put the language string
46 definition here. (fnf) */
47char *language_string = "GNU C++";
48
49extern tree void_list_node;
50extern struct obstack permanent_obstack;
51
52#ifndef errno
53extern int errno;
54#endif
55
56extern int end_of_file;
a28e3c7f 57extern int current_class_depth;
5566b478 58extern tree last_tree;
8d08fdba 59
37539f4f
MS
60/* FSF LOCAL dje prefix attributes */
61extern tree strip_attrs PROTO((tree));
62/* END FSF LOCAL */
63
8d08fdba
MS
64void yyerror ();
65
66/* Like YYERROR but do call yyerror. */
67#define YYERROR1 { yyerror ("syntax error"); YYERROR; }
68
a28e3c7f
MS
69#define OP0(NODE) (TREE_OPERAND (NODE, 0))
70#define OP1(NODE) (TREE_OPERAND (NODE, 1))
71
8d08fdba
MS
72/* Contains the statement keyword (if/while/do) to include in an
73 error message if the user supplies an empty conditional expression. */
74static char *cond_stmt_keyword;
75
76/* Nonzero if we have an `extern "C"' acting as an extern specifier. */
77int have_extern_spec;
78int used_extern_spec;
79
80void yyhook ();
81
82/* Cons up an empty parameter list. */
83#ifdef __GNUC__
84__inline
85#endif
86static tree
87empty_parms ()
88{
89 tree parms;
90
67d743fe
MS
91 if (strict_prototype
92 || current_class_type != NULL)
8d08fdba
MS
93 parms = void_list_node;
94 else
95 parms = NULL_TREE;
96 return parms;
97}
98%}
99
100%start program
101
46b02c6d 102%union {long itype; tree ttype; char *strtype; enum tree_code code; flagged_type_tree ftype; }
8d08fdba
MS
103
104/* All identifiers that are not reserved words
105 and are not declared typedefs in the current block */
106%token IDENTIFIER
107
108/* All identifiers that are declared typedefs in the current block.
109 In some contexts, they are treated just like IDENTIFIER,
110 but they can also serve as typespecs in declarations. */
111%token TYPENAME
a80e4195 112%token SELFNAME
8d08fdba 113
8d08fdba
MS
114/* Reserved words that specify storage class.
115 yylval contains an IDENTIFIER_NODE which indicates which one. */
116%token SCSPEC
117
118/* Reserved words that specify type.
119 yylval contains an IDENTIFIER_NODE which indicates which one. */
120%token TYPESPEC
121
122/* Reserved words that qualify type: "const" or "volatile".
123 yylval contains an IDENTIFIER_NODE which indicates which one. */
124%token TYPE_QUAL
125
126/* Character or numeric constants.
127 yylval is the node for the constant. */
128%token CONSTANT
129
130/* String constants in raw form.
131 yylval is a STRING_CST node. */
132%token STRING
133
134/* "...", used for functions with variable arglists. */
135%token ELLIPSIS
136
137/* the reserved words */
e92cc029 138/* SCO include files test "ASM", so use something else. */
8d08fdba
MS
139%token SIZEOF ENUM /* STRUCT UNION */ IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
140%token BREAK CONTINUE RETURN GOTO ASM_KEYWORD GCC_ASM_KEYWORD TYPEOF ALIGNOF
f30432d7 141%token SIGOF
8d08fdba
MS
142%token ATTRIBUTE EXTENSION LABEL
143
144/* the reserved words... C++ extensions */
145%token <ttype> AGGR
be99da77 146%token <ttype> VISSPEC
2986ae00 147%token DELETE NEW OVERLOAD THIS OPERATOR CXX_TRUE CXX_FALSE
db5ae43f 148%token NAMESPACE TYPENAME_KEYWORD USING
8d08fdba 149%token LEFT_RIGHT TEMPLATE
a4443a08 150%token TYPEID DYNAMIC_CAST STATIC_CAST REINTERPRET_CAST CONST_CAST
8d08fdba
MS
151%token <itype> SCOPE
152
8d08fdba
MS
153/* Define the operator tokens and their precedences.
154 The value is an integer because, if used, it is the tree code
155 to use in the expression made from the operator. */
156
157%left EMPTY /* used to resolve s/r with epsilon */
158
159%left error
160
161/* Add precedence rules to solve dangling else s/r conflict */
162%nonassoc IF
163%nonassoc ELSE
164
a80e4195 165%left IDENTIFIER TYPENAME SELFNAME PTYPENAME SCSPEC TYPESPEC TYPE_QUAL ENUM AGGR ELLIPSIS TYPEOF SIGOF OPERATOR NSNAME TYPENAME_KEYWORD
8d08fdba
MS
166
167%left '{' ',' ';'
168
db5ae43f 169%nonassoc THROW
6060a796 170%right <code> ':'
8d08fdba 171%right <code> ASSIGN '='
6060a796 172%right <code> '?'
8d08fdba
MS
173%left <code> OROR
174%left <code> ANDAND
175%left <code> '|'
176%left <code> '^'
177%left <code> '&'
178%left <code> MIN_MAX
179%left <code> EQCOMPARE
180%left <code> ARITHCOMPARE '<' '>'
181%left <code> LSHIFT RSHIFT
182%left <code> '+' '-'
183%left <code> '*' '/' '%'
51c184be
MS
184%left <code> POINTSAT_STAR DOT_STAR
185%right <code> UNARY PLUSPLUS MINUSMINUS '~'
8d08fdba
MS
186%left HYPERUNARY
187%left <ttype> PAREN_STAR_PAREN LEFT_RIGHT
51c184be 188%left <code> POINTSAT '.' '(' '['
8d08fdba
MS
189
190%right SCOPE /* C++ extension */
db5ae43f 191%nonassoc NEW DELETE TRY CATCH
8d08fdba
MS
192
193%type <code> unop
194
195%type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist
a80e4195 196%type <ttype> paren_expr_or_null nontrivial_exprlist SELFNAME
8d08fdba 197%type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
46b02c6d
MS
198%type <ttype> reserved_declspecs boolean.literal
199%type <ttype> reserved_typespecquals
200%type <ttype> declmods
201%type <ttype> SCSPEC TYPESPEC TYPE_QUAL maybe_type_qual
8d08fdba 202%type <itype> initdecls notype_initdecls initdcl /* C++ modification */
e3417fcd 203%type <ttype> init initlist maybeasm maybe_init
8d08fdba 204%type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
2986ae00
MS
205%type <ttype> maybe_attribute attributes attribute attribute_list attrib
206%type <ttype> any_word
8d08fdba 207
8d2733ca 208%type <ttype> compstmt implicitly_scoped_stmt
8d08fdba
MS
209
210%type <ttype> declarator notype_declarator after_type_declarator
51c184be 211%type <ttype> direct_notype_declarator direct_after_type_declarator
8d08fdba 212
46b02c6d 213%type <ttype> opt.component_decl_list component_decl_list
f30432d7 214%type <ttype> component_decl component_decl_1 components notype_components
c91a56d2 215%type <ttype> component_declarator component_declarator0 self_reference
f30432d7 216%type <ttype> notype_component_declarator notype_component_declarator0
51c184be 217%type <ttype> after_type_component_declarator after_type_component_declarator0
8d08fdba 218%type <ttype> enumlist enumerator
46b02c6d 219%type <ttype> absdcl type_quals
51c184be 220%type <ttype> direct_abstract_declarator conversion_declarator
46b02c6d
MS
221%type <ttype> new_declarator direct_new_declarator
222%type <ttype> xexpr parmlist parms bad_parm
8d08fdba 223%type <ttype> identifiers_or_typenames
f30432d7 224%type <ttype> fcast_or_absdcl regcast_or_absdcl
a28e3c7f
MS
225%type <ttype> expr_or_declarator complex_notype_declarator
226%type <ttype> notype_unqualified_id unqualified_id qualified_id
6060a796 227%type <ttype> overqualified_id notype_qualified_id any_id
51c184be 228%type <ttype> complex_direct_notype_declarator functional_cast
46b02c6d
MS
229%type <ttype> complex_parmlist parms_comma
230
231%type <ftype> type_id new_type_id typed_typespecs typespec typed_declspecs
232%type <ftype> typed_declspecs1 type_specifier_seq nonempty_type_quals
233%type <ftype> structsp typespecqual_reserved parm named_parm full_parm
8d08fdba
MS
234
235/* C++ extensions */
a28e3c7f 236%token <ttype> TYPENAME_ELLIPSIS PTYPENAME
8d08fdba
MS
237%token <ttype> PRE_PARSED_FUNCTION_DECL EXTERN_LANG_STRING ALL
238%token <ttype> PRE_PARSED_CLASS_DECL
a80e4195 239%type <ttype> fn.def1 /* Not really! */ component_constructor_declarator
c91a56d2 240%type <ttype> fn.def2 return_id fn.defpen constructor_declarator
f30432d7 241%type <itype> ctor_initializer_opt
8d08fdba 242%type <ttype> named_class_head named_class_head_sans_basetype
07674418 243%type <ttype> named_complex_class_head_sans_basetype
8d08fdba
MS
244%type <ttype> unnamed_class_head
245%type <ttype> class_head base_class_list
be99da77 246%type <ttype> base_class_access_list
8d08fdba 247%type <ttype> base_class maybe_base_class_list base_class.1
e3417fcd 248%type <ttype> exception_specification_opt ansi_raise_identifier ansi_raise_identifiers
863adfc0 249%type <ttype> operator_name
39211cd5
MS
250%type <ttype> object aggr
251%type <itype> new delete
8d08fdba 252/* %type <ttype> primary_no_id */
a5894242 253%type <ttype> nonmomentary_expr maybe_parmlist
863adfc0 254%type <itype> initdcl0 notype_initdcl0 member_init_list
8d08fdba 255%type <ttype> template_header template_parm_list template_parm
a292b002 256%type <ttype> template_type_parm
5566b478 257%type <code> template_close_bracket
8d08fdba 258%type <ttype> template_type template_arg_list template_arg
8d08fdba 259/* %type <itype> try_for_typename */
8d2733ca 260%type <ttype> condition xcond paren_cond_or_null
a28e3c7f 261%type <ttype> type_name nested_name_specifier nested_type ptr_to_mem
cffa8729 262%type <ttype> complete_type_name notype_identifier
a28e3c7f
MS
263%type <ttype> complex_type_name nested_name_specifier_1
264%type <itype> nomods_initdecls nomods_initdcl0
46b02c6d 265%type <ttype> new_initializer new_placement
863adfc0 266%type <ttype> using_decl .poplevel
8d08fdba 267
e92cc029 268/* in order to recognize aggr tags as defining and thus shadowing. */
8d08fdba 269%token TYPENAME_DEFN IDENTIFIER_DEFN PTYPENAME_DEFN
5566b478 270%type <ttype> named_class_head_sans_basetype_defn
8d08fdba
MS
271%type <ttype> identifier_defn IDENTIFIER_DEFN TYPENAME_DEFN PTYPENAME_DEFN
272
67d743fe
MS
273%type <ttype> self_template_type
274
6060a796
MS
275%token NSNAME
276%type <ttype> NSNAME
277
d18c083e
MS
278/* Used in lex.c for parsing pragmas. */
279%token END_OF_LINE
280
5566b478 281/* lex.c and pt.c depend on this being the last token. Define
8d08fdba
MS
282 any new tokens before this one! */
283%token END_OF_SAVED_INPUT
284\f
285%{
286/* List of types and structure classes of the current declaration. */
287static tree current_declspecs;
f30432d7
MS
288/* List of prefix attributes in effect.
289 Prefix attributes are parsed by the reserved_declspecs and declmods
290 rules. They create a list that contains *both* declspecs and attrs. */
291/* ??? It is not clear yet that all cases where an attribute can now appear in
292 a declspec list have been updated. */
293static tree prefix_attributes;
8d08fdba
MS
294
295/* When defining an aggregate, this is the most recent one being defined. */
296static tree current_aggr;
297
298/* Tell yyparse how to print a token's value, if yydebug is set. */
299
300#define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
301extern void yyprint ();
302extern tree combine_strings PROTO((tree));
8d08fdba
MS
303%}
304\f
305%%
306program: /* empty */
307 | extdefs
308 {
309 /* In case there were missing closebraces,
310 get us back to the global binding level. */
311 while (! global_bindings_p ())
312 poplevel (0, 0, 0);
313 finish_file ();
314 }
315 ;
316
317/* the reason for the strange actions in this rule
318 is so that notype_initdecls when reached via datadef
e92cc029 319 can find a valid list of type and sc specs in $0. */
8d08fdba
MS
320
321extdefs:
322 { $<ttype>$ = NULL_TREE; } lang_extdef
323 { $<ttype>$ = NULL_TREE; }
324 | extdefs lang_extdef
325 { $<ttype>$ = NULL_TREE; }
326 ;
327
6060a796
MS
328extdefs_opt:
329 extdefs
330 | /* empty */
331 ;
332
8d08fdba
MS
333.hush_warning:
334 { have_extern_spec = 1;
335 used_extern_spec = 0;
336 $<ttype>$ = NULL_TREE; }
337 ;
338.warning_ok:
339 { have_extern_spec = 0; }
340 ;
341
342asm_keyword:
2986ae00 343 ASM_KEYWORD
8d08fdba
MS
344 | GCC_ASM_KEYWORD
345 ;
346
347lang_extdef:
348 { if (pending_lang_change) do_pending_lang_change(); }
349 extdef
a9aedbc2 350 { if (! toplevel_bindings_p () && ! pseudo_global_level_p())
f30432d7 351 pop_everything (); }
8d08fdba
MS
352 ;
353
354extdef:
355 fndef
356 { if (pending_inlines) do_pending_inlines (); }
357 | datadef
358 { if (pending_inlines) do_pending_inlines (); }
359 | template_def
360 { if (pending_inlines) do_pending_inlines (); }
361 | overloaddef
362 | asm_keyword '(' string ')' ';'
363 { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
364 assemble_asm ($3); }
6060a796 365 | extern_lang_string '{' extdefs_opt '}'
8d08fdba
MS
366 { pop_lang_context (); }
367 | extern_lang_string .hush_warning fndef .warning_ok
368 { if (pending_inlines) do_pending_inlines ();
369 pop_lang_context (); }
370 | extern_lang_string .hush_warning datadef .warning_ok
371 { if (pending_inlines) do_pending_inlines ();
372 pop_lang_context (); }
6060a796
MS
373 | NAMESPACE identifier '{'
374 { push_namespace ($2); }
375 extdefs_opt '}'
376 { pop_namespace (); }
377 | NAMESPACE '{'
378 { push_namespace (NULL_TREE); }
379 extdefs_opt '}'
380 { pop_namespace (); }
381 | NAMESPACE identifier '=' any_id ';'
382 { do_namespace_alias ($2, $4); }
383 | using_decl ';'
a9aedbc2 384 { do_toplevel_using_decl ($1); }
6060a796
MS
385 | USING NAMESPACE any_id ';'
386 { do_using_directive ($3); }
387 ;
388
389using_decl:
390 USING qualified_id
a9aedbc2 391 { $$ = $2; }
6060a796 392 | USING global_scope qualified_id
a9aedbc2 393 { $$ = $3; }
6060a796 394 | USING global_scope unqualified_id
a9aedbc2 395 { $$ = $3; }
6060a796
MS
396 ;
397
398any_id:
399 unqualified_id
400 | qualified_id
401 | global_scope qualified_id
402 { $$ = $2; }
403 | global_scope unqualified_id
404 { $$ = $2; }
8d08fdba
MS
405 ;
406
407extern_lang_string:
28cbf42c 408 EXTERN_LANG_STRING
8d08fdba 409 { push_lang_context ($1); }
28cbf42c
MS
410 | extern_lang_string EXTERN_LANG_STRING
411 { if (current_lang_name != $2)
412 cp_error ("use of linkage spec `%D' is different from previous spec `%D'", $2, current_lang_name);
413 pop_lang_context (); push_lang_context ($2); }
8d08fdba
MS
414 ;
415
416template_header:
417 TEMPLATE '<'
418 { begin_template_parm_list (); }
419 template_parm_list '>'
420 { $$ = end_template_parm_list ($4); }
73aad9b9
JM
421 | TEMPLATE '<' '>'
422 { $$ = NULL_TREE; }
8d08fdba
MS
423 ;
424
425template_parm_list:
426 template_parm
427 { $$ = process_template_parm (NULL_TREE, $1); }
428 | template_parm_list ',' template_parm
429 { $$ = process_template_parm ($1, $3); }
430 ;
431
a292b002
MS
432template_type_parm:
433 aggr
434 {
435 $$ = build_tree_list ($1, NULL_TREE);
436 ttpa:
437 if (TREE_PURPOSE ($$) == signature_type_node)
438 sorry ("signature as template type parameter");
439 else if (TREE_PURPOSE ($$) != class_type_node)
ec255269
MS
440 {
441 pedwarn ("template type parameters must use the keyword `class'");
442 TREE_PURPOSE ($$) = class_type_node;
443 }
a292b002
MS
444 }
445 | aggr identifier
446 { $$ = build_tree_list ($1, $2); goto ttpa; }
f30432d7
MS
447 | TYPENAME_KEYWORD
448 { $$ = build_tree_list (class_type_node, NULL_TREE); }
449 | TYPENAME_KEYWORD identifier
450 { $$ = build_tree_list (class_type_node, $2); }
a292b002
MS
451 ;
452
8d08fdba
MS
453template_parm:
454 /* The following rules introduce a new reduce/reduce
51c184be
MS
455 conflict on the ',' and '>' input tokens: they are valid
456 prefixes for a `structsp', which means they could match a
457 nameless parameter. See 14.6, paragraph 3.
8d08fdba
MS
458 By putting them before the `parm' rule, we get
459 their match before considering them nameless parameter
460 declarations. */
a292b002 461 template_type_parm
5566b478
MS
462 { $$ = build_tree_list (NULL_TREE, $1); }
463 | template_type_parm '=' type_id
46b02c6d 464 { $$ = build_tree_list (groktypename ($3.t), $1); }
5566b478 465 | parm
46b02c6d 466 { $$ = build_tree_list (NULL_TREE, $1.t); }
5566b478 467 | parm '=' expr_no_commas %prec ARITHCOMPARE
46b02c6d 468 { $$ = build_tree_list ($3, $1.t); }
8d08fdba
MS
469 ;
470
471overloaddef:
472 OVERLOAD ov_identifiers ';'
473 { warning ("use of `overload' is an anachronism"); }
474 ;
475
476ov_identifiers: IDENTIFIER
477 { declare_overloaded ($1); }
478 | ov_identifiers ',' IDENTIFIER
479 { declare_overloaded ($3); }
480 ;
8d08fdba 481
5566b478
MS
482template_def:
483 template_header
484 extdef
485 { end_template_decl (); }
486 | template_header
487 error %prec EMPTY
488 { end_template_decl (); }
8d08fdba
MS
489 ;
490
491datadef:
a28e3c7f
MS
492 nomods_initdecls ';'
493 {}
8d08fdba
MS
494 | declmods notype_initdecls ';'
495 {}
51c184be
MS
496 /* Normal case to make fast: "const i;". */
497 | declmods notype_declarator ';'
f30432d7
MS
498 { tree d, specs, attrs;
499 split_specs_attrs ($1, &specs, &attrs);
500 d = start_decl ($<ttype>2, specs, 0, NULL_TREE);
501 cplus_decl_attributes (d, NULL_TREE, attrs);
9e9ff709 502 cp_finish_decl (d, NULL_TREE, NULL_TREE, 1, 0);
8d08fdba
MS
503 }
504 | typed_declspecs initdecls ';'
505 {
46b02c6d 506 note_list_got_semicolon ($1.t);
8d08fdba
MS
507 }
508 /* Normal case: make this fast. */
509 | typed_declspecs declarator ';'
f30432d7 510 { tree d, specs, attrs;
46b02c6d 511 split_specs_attrs ($1.t, &specs, &attrs);
fc378698 512 note_list_got_semicolon (specs);
46b02c6d 513 d = start_decl ($2, specs, 0, NULL_TREE);
f30432d7 514 cplus_decl_attributes (d, NULL_TREE, attrs);
9e9ff709 515 cp_finish_decl (d, NULL_TREE, NULL_TREE, 1, 0);
8d08fdba
MS
516 }
517 | declmods ';'
518 { pedwarn ("empty declaration"); }
519 | explicit_instantiation ';'
520 | typed_declspecs ';'
521 {
f30432d7 522 tree t, attrs;
46b02c6d 523 split_specs_attrs ($1.t, &t, &attrs);
8d08fdba 524 shadow_tag (t);
46b02c6d 525 note_list_got_semicolon ($1.t);
8d08fdba
MS
526 }
527 | error ';'
528 | error '}'
529 | ';'
530 ;
531
f30432d7
MS
532ctor_initializer_opt:
533 nodecls
534 { $$ = 0; }
535 | base_init
536 { $$ = 1; }
537 ;
8d08fdba 538
f30432d7
MS
539maybe_return_init:
540 /* empty */
541 | return_init
542 | return_init ';'
543 ;
8d08fdba 544
f30432d7
MS
545eat_saved_input:
546 /* empty */
547 | END_OF_SAVED_INPUT
548 ;
549
550fndef:
551 fn.def1 maybe_return_init ctor_initializer_opt compstmt_or_error
5566b478 552 { finish_function (lineno, (int)$3, 0); }
f30432d7 553 | fn.def1 maybe_return_init function_try_block
5566b478 554 { if ($<ttype>$) process_next_inline ($<ttype>$); }
f30432d7 555 eat_saved_input
8d08fdba
MS
556 | typed_declspecs declarator error
557 {}
558 | declmods notype_declarator error
559 {}
560 | notype_declarator error
561 {}
562 ;
563
c91a56d2 564constructor_declarator:
a80e4195 565 nested_name_specifier SELFNAME '('
c91a56d2
MS
566 {
567 $$ = build_parse_node (SCOPE_REF, $1, $2);
568 if ($1 != current_class_type)
569 {
570 push_nested_class ($1, 3);
571 TREE_COMPLEXITY ($$) = current_class_depth;
572 }
573 }
574 parmlist ')' type_quals
575 { $$ = build_parse_node (CALL_EXPR, $<ttype>4, $5, $7); }
a80e4195 576 | nested_name_specifier SELFNAME LEFT_RIGHT type_quals
c91a56d2
MS
577 {
578 $$ = build_parse_node (SCOPE_REF, $1, $2);
579 if ($1 != current_class_type)
580 {
581 push_nested_class ($1, 3);
582 TREE_COMPLEXITY ($$) = current_class_depth;
583 }
584 $$ = build_parse_node (CALL_EXPR, $$, empty_parms (), $4);
585 }
a80e4195 586 | global_scope nested_name_specifier SELFNAME '('
c91a56d2
MS
587 {
588 $$ = build_parse_node (SCOPE_REF, $2, $3);
589 if ($2 != current_class_type)
590 {
591 push_nested_class ($2, 3);
592 TREE_COMPLEXITY ($$) = current_class_depth;
593 }
594 }
595 parmlist ')' type_quals
596 { $$ = build_parse_node (CALL_EXPR, $<ttype>5, $6, $8); }
a80e4195 597 | global_scope nested_name_specifier SELFNAME LEFT_RIGHT type_quals
c91a56d2
MS
598 {
599 $$ = build_parse_node (SCOPE_REF, $2, $3);
600 if ($2 != current_class_type)
601 {
602 push_nested_class ($2, 3);
603 TREE_COMPLEXITY ($$) = current_class_depth;
604 }
605 $$ = build_parse_node (CALL_EXPR, $$, empty_parms (), $5);
606 }
67d743fe
MS
607 | nested_name_specifier self_template_type '('
608 {
609 $$ = build_parse_node (SCOPE_REF, $1, $2);
610 if ($1 != current_class_type)
611 {
612 push_nested_class ($1, 3);
613 TREE_COMPLEXITY ($$) = current_class_depth;
614 }
615 }
616 parmlist ')' type_quals
617 { $$ = build_parse_node (CALL_EXPR, $<ttype>4, $5, $7); }
618 | nested_name_specifier self_template_type LEFT_RIGHT type_quals
619 {
620 $$ = build_parse_node (SCOPE_REF, $1, $2);
621 if ($1 != current_class_type)
622 {
623 push_nested_class ($1, 3);
624 TREE_COMPLEXITY ($$) = current_class_depth;
625 }
626 $$ = build_parse_node (CALL_EXPR, $$, empty_parms (), $4);
627 }
628 | global_scope nested_name_specifier self_template_type '('
629 {
630 $$ = build_parse_node (SCOPE_REF, $2, $3);
631 if ($2 != current_class_type)
632 {
633 push_nested_class ($2, 3);
634 TREE_COMPLEXITY ($$) = current_class_depth;
635 }
636 }
637 parmlist ')' type_quals
638 { $$ = build_parse_node (CALL_EXPR, $<ttype>5, $6, $8); }
639 | global_scope nested_name_specifier self_template_type LEFT_RIGHT type_quals
640 {
641 $$ = build_parse_node (SCOPE_REF, $2, $3);
642 if ($2 != current_class_type)
643 {
644 push_nested_class ($2, 3);
645 TREE_COMPLEXITY ($$) = current_class_depth;
646 }
647 $$ = build_parse_node (CALL_EXPR, $$, empty_parms (), $5);
648 }
c91a56d2
MS
649 ;
650
8d08fdba 651fn.def1:
e3417fcd 652 typed_declspecs declarator exception_specification_opt
f30432d7 653 { tree specs, attrs;
46b02c6d 654 split_specs_attrs ($1.t, &specs, &attrs);
f30432d7 655 if (! start_function (specs, $2, $3, attrs, 0))
8d08fdba
MS
656 YYERROR1;
657 reinit_parse_for_function ();
658 $$ = NULL_TREE; }
e3417fcd 659 | declmods notype_declarator exception_specification_opt
72b7eeff
MS
660 { tree specs, attrs;
661 split_specs_attrs ($1, &specs, &attrs);
662 if (! start_function (specs, $2, $3, attrs, 0))
8d08fdba
MS
663 YYERROR1;
664 reinit_parse_for_function ();
665 $$ = NULL_TREE; }
e3417fcd 666 | notype_declarator exception_specification_opt
f30432d7 667 { if (! start_function (NULL_TREE, $$, $2, NULL_TREE, 0))
8d08fdba
MS
668 YYERROR1;
669 reinit_parse_for_function ();
670 $$ = NULL_TREE; }
c91a56d2
MS
671 | declmods constructor_declarator exception_specification_opt
672 { tree specs, attrs;
673 split_specs_attrs ($1, &specs, &attrs);
674 if (! start_function (specs, $2, $3, attrs, 0))
675 YYERROR1;
676 reinit_parse_for_function ();
677 $$ = NULL_TREE; }
678 | constructor_declarator exception_specification_opt
679 { if (! start_function (NULL_TREE, $$, $2, NULL_TREE, 0))
680 YYERROR1;
681 reinit_parse_for_function ();
682 $$ = NULL_TREE; }
8d08fdba
MS
683 ;
684
a80e4195
MS
685component_constructor_declarator:
686 SELFNAME '(' parmlist ')' type_quals
687 { $$ = build_parse_node (CALL_EXPR, $1, $3, $5); }
688 | SELFNAME LEFT_RIGHT type_quals
689 { $$ = build_parse_node (CALL_EXPR, $1, empty_parms (), $3); }
67d743fe
MS
690 | self_template_type '(' parmlist ')' type_quals
691 { $$ = build_parse_node (CALL_EXPR, $1, $3, $5); }
692 | self_template_type LEFT_RIGHT type_quals
693 { $$ = build_parse_node (CALL_EXPR, $1, empty_parms (), $3); }
a80e4195
MS
694 ;
695
51c184be
MS
696/* more C++ complexity. See component_decl for a comment on the
697 reduce/reduce conflict introduced by these rules. */
8d08fdba 698fn.def2:
a80e4195 699 declmods component_constructor_declarator exception_specification_opt
f30432d7 700 { tree specs = strip_attrs ($1);
a80e4195 701 $$ = start_method (specs, $2, $3);
a28e3c7f 702 rest_of_mdef:
8d08fdba
MS
703 if (! $$)
704 YYERROR1;
705 if (yychar == YYEMPTY)
706 yychar = YYLEX;
707 reinit_parse_for_method (yychar, $$); }
a80e4195
MS
708 | component_constructor_declarator exception_specification_opt
709 { $$ = start_method (NULL_TREE, $1, $2); goto rest_of_mdef; }
e3417fcd 710 | typed_declspecs declarator exception_specification_opt
46b02c6d 711 { tree specs = strip_attrs ($1.t);
f30432d7 712 $$ = start_method (specs, $2, $3); goto rest_of_mdef; }
e3417fcd 713 | declmods notype_declarator exception_specification_opt
f30432d7
MS
714 { tree specs = strip_attrs ($1);
715 $$ = start_method (specs, $2, $3); goto rest_of_mdef; }
e3417fcd 716 | notype_declarator exception_specification_opt
a28e3c7f 717 { $$ = start_method (NULL_TREE, $$, $2); goto rest_of_mdef; }
c91a56d2
MS
718 | declmods constructor_declarator exception_specification_opt
719 { tree specs = strip_attrs ($1);
720 $$ = start_method (specs, $2, $3); goto rest_of_mdef; }
721 | constructor_declarator exception_specification_opt
722 { $$ = start_method (NULL_TREE, $$, $2); goto rest_of_mdef; }
8d08fdba
MS
723 ;
724
725return_id: RETURN IDENTIFIER
726 {
727 if (! current_function_parms_stored)
728 store_parm_decls ();
729 $$ = $2;
730 }
731 ;
732
e3417fcd
MS
733return_init: return_id maybe_init
734 { store_return_init ($<ttype>$, $2); }
8d08fdba
MS
735 | return_id '(' nonnull_exprlist ')'
736 { store_return_init ($<ttype>$, $3); }
737 | return_id LEFT_RIGHT
738 { store_return_init ($<ttype>$, NULL_TREE); }
739 ;
740
741base_init:
742 ':' .set_base_init member_init_list
743 {
744 if ($3 == 0)
745 error ("no base initializers given following ':'");
746 setup_vtbl_ptr ();
747 /* Always keep the BLOCK node associated with the outermost
748 pair of curley braces of a function. These are needed
749 for correct operation of dwarfout.c. */
750 keep_next_level ();
751 }
752 ;
753
754.set_base_init:
755 /* empty */
756 {
757 if (! current_function_parms_stored)
758 store_parm_decls ();
759
8d08fdba
MS
760 if (DECL_CONSTRUCTOR_P (current_function_decl))
761 {
762 /* Make a contour for the initializer list. */
763 pushlevel (0);
764 clear_last_expr ();
765 expand_start_bindings (0);
766 }
767 else if (current_class_type == NULL_TREE)
768 error ("base initializers not allowed for non-member functions");
769 else if (! DECL_CONSTRUCTOR_P (current_function_decl))
770 error ("only constructors take base initializers");
771 }
772 ;
773
774member_init_list:
775 /* empty */
776 { $$ = 0; }
777 | member_init
778 { $$ = 1; }
779 | member_init_list ',' member_init
780 | member_init_list error
781 ;
782
783member_init: '(' nonnull_exprlist ')'
784 {
785 if (current_class_name && !flag_traditional)
786 pedwarn ("anachronistic old style base class initializer");
4ac14744 787 expand_member_init (current_class_ref, NULL_TREE, $2);
8d08fdba
MS
788 }
789 | LEFT_RIGHT
790 {
791 if (current_class_name && !flag_traditional)
792 pedwarn ("anachronistic old style base class initializer");
4ac14744 793 expand_member_init (current_class_ref, NULL_TREE, void_type_node);
8d08fdba 794 }
a28e3c7f 795 | notype_identifier '(' nonnull_exprlist ')'
4ac14744 796 { expand_member_init (current_class_ref, $1, $3); }
a28e3c7f 797 | notype_identifier LEFT_RIGHT
4ac14744 798 { expand_member_init (current_class_ref, $1, void_type_node); }
a28e3c7f 799 | complete_type_name '(' nonnull_exprlist ')'
4ac14744 800 { expand_member_init (current_class_ref, $1, $3); }
a28e3c7f 801 | complete_type_name LEFT_RIGHT
4ac14744 802 { expand_member_init (current_class_ref, $1, void_type_node); }
a28e3c7f
MS
803 /* GNU extension */
804 | notype_qualified_id '(' nonnull_exprlist ')'
8d08fdba 805 {
a28e3c7f 806 do_member_init (OP0 ($1), OP1 ($1), $3);
8d08fdba 807 }
a28e3c7f 808 | notype_qualified_id LEFT_RIGHT
8d08fdba 809 {
a28e3c7f 810 do_member_init (OP0 ($1), OP1 ($1), void_type_node);
8d08fdba
MS
811 }
812 ;
813
814identifier:
815 IDENTIFIER
816 | TYPENAME
a80e4195 817 | SELFNAME
8d08fdba 818 | PTYPENAME
6060a796 819 | NSNAME
8d08fdba
MS
820 ;
821
a28e3c7f
MS
822notype_identifier:
823 IDENTIFIER
6060a796
MS
824 | PTYPENAME
825 | NSNAME %prec EMPTY
a28e3c7f
MS
826 ;
827
8d08fdba
MS
828identifier_defn:
829 IDENTIFIER_DEFN
830 | TYPENAME_DEFN
831 | PTYPENAME_DEFN
832 ;
833
8d08fdba 834explicit_instantiation:
5566b478
MS
835 TEMPLATE aggr template_type
836 { do_type_instantiation ($3, NULL_TREE); }
a4443a08 837 | TEMPLATE typed_declspecs declarator
46b02c6d 838 { tree specs = strip_attrs ($2.t);
f30432d7 839 do_function_instantiation (specs, $3, NULL_TREE); }
07674418
MS
840 | TEMPLATE notype_declarator
841 { do_function_instantiation (NULL_TREE, $2, NULL_TREE); }
c91a56d2
MS
842 | TEMPLATE constructor_declarator
843 { do_function_instantiation (NULL_TREE, $2, NULL_TREE); }
5566b478
MS
844 | SCSPEC TEMPLATE aggr template_type
845 { do_type_instantiation ($4, $1); }
f0e01782 846 | SCSPEC TEMPLATE typed_declspecs declarator
46b02c6d 847 { tree specs = strip_attrs ($3.t);
f30432d7 848 do_function_instantiation (specs, $4, $1); }
07674418
MS
849 | SCSPEC TEMPLATE notype_declarator
850 { do_function_instantiation (NULL_TREE, $3, $1); }
c91a56d2
MS
851 | SCSPEC TEMPLATE constructor_declarator
852 { do_function_instantiation (NULL_TREE, $3, $1); }
8d08fdba
MS
853 ;
854
5566b478
MS
855/* The TYPENAME expansions are to deal with use of a template class name as
856 a template within the class itself, where the template decl is hidden by
857 a type decl. Got all that? */
8d08fdba 858
5566b478
MS
859template_type:
860 PTYPENAME '<' template_arg_list template_close_bracket
861 {
862 $$ = lookup_template_class ($1, $3, NULL_TREE);
863 if ($$ != error_mark_node)
864 $$ = TYPE_STUB_DECL ($$);
865 }
866 | PTYPENAME '<' template_close_bracket
867 {
868 $$ = lookup_template_class ($1, NULL_TREE, NULL_TREE);
869 if ($$ != error_mark_node)
870 $$ = TYPE_STUB_DECL ($$);
871 }
872 | TYPENAME '<' template_arg_list template_close_bracket
873 {
874 $$ = lookup_template_class ($1, $3, NULL_TREE);
875 if ($$ != error_mark_node)
876 $$ = TYPE_STUB_DECL ($$);
877 }
878 | TYPENAME '<' template_close_bracket
879 {
880 $$ = lookup_template_class ($1, NULL_TREE, NULL_TREE);
881 if ($$ != error_mark_node)
882 $$ = TYPE_STUB_DECL ($$);
883 }
67d743fe
MS
884 | self_template_type
885 ;
886
887self_template_type:
888 SELFNAME '<' template_arg_list template_close_bracket
a80e4195
MS
889 {
890 $$ = lookup_template_class ($1, $3, NULL_TREE);
891 if ($$ != error_mark_node)
892 $$ = TYPE_STUB_DECL ($$);
893 }
894 | SELFNAME '<' template_close_bracket
895 {
896 $$ = lookup_template_class ($1, NULL_TREE, NULL_TREE);
897 if ($$ != error_mark_node)
898 $$ = TYPE_STUB_DECL ($$);
899 }
8d08fdba
MS
900 ;
901
5566b478
MS
902template_close_bracket:
903 '>'
904 | RSHIFT
905 {
906 /* Handle `Class<Class<Type>>' without space in the `>>' */
907 pedwarn ("`>>' should be `> >' in template class name");
908 yyungetc ('>', 1);
909 }
8d08fdba
MS
910 ;
911
912template_arg_list:
913 template_arg
914 { $$ = build_tree_list (NULL_TREE, $$); }
915 | template_arg_list ',' template_arg
916 { $$ = chainon ($$, build_tree_list (NULL_TREE, $3)); }
917 ;
918
919template_arg:
51c184be 920 type_id
46b02c6d 921 { $$ = groktypename ($1.t); }
5566b478 922 | expr_no_commas %prec ARITHCOMPARE
8d08fdba
MS
923 ;
924
8d08fdba
MS
925unop: '-'
926 { $$ = NEGATE_EXPR; }
927 | '+'
928 { $$ = CONVERT_EXPR; }
929 | PLUSPLUS
930 { $$ = PREINCREMENT_EXPR; }
931 | MINUSMINUS
932 { $$ = PREDECREMENT_EXPR; }
933 | '!'
934 { $$ = TRUTH_NOT_EXPR; }
935 ;
936
51c184be 937expr: nontrivial_exprlist
8d08fdba 938 { $$ = build_x_compound_expr ($$); }
8d08fdba
MS
939 | expr_no_commas
940 ;
941
942paren_expr_or_null:
943 LEFT_RIGHT
944 { error ("ANSI C++ forbids an empty condition for `%s'",
945 cond_stmt_keyword);
946 $$ = integer_zero_node; }
947 | '(' expr ')'
8ccc31eb 948 { $$ = condition_conversion ($2); }
8d08fdba
MS
949 ;
950
951paren_cond_or_null:
952 LEFT_RIGHT
953 { error ("ANSI C++ forbids an empty condition for `%s'",
954 cond_stmt_keyword);
955 $$ = integer_zero_node; }
956 | '(' condition ')'
8ccc31eb 957 { $$ = condition_conversion ($2); }
8d08fdba
MS
958 ;
959
960xcond:
961 /* empty */
962 { $$ = NULL_TREE; }
963 | condition
8ccc31eb 964 { $$ = condition_conversion ($$); }
8d08fdba
MS
965 | error
966 { $$ = NULL_TREE; }
967 ;
968
969condition:
e3417fcd 970 type_specifier_seq declarator exception_specification_opt maybeasm maybe_attribute '='
8d08fdba
MS
971 { {
972 tree d;
973 for (d = getdecls (); d; d = TREE_CHAIN (d))
974 if (TREE_CODE (d) == TYPE_DECL) {
975 tree s = TREE_TYPE (d);
976 if (TREE_CODE (s) == RECORD_TYPE)
977 cp_error ("definition of class `%T' in condition", s);
978 else if (TREE_CODE (s) == ENUMERAL_TYPE)
979 cp_error ("definition of enum `%T' in condition", s);
980 }
981 }
46b02c6d 982 current_declspecs = $1.t;
8d08fdba
MS
983 $<itype>6 = suspend_momentary ();
984 $<ttype>$ = start_decl ($<ttype>2, current_declspecs, 1, $3);
f30432d7
MS
985 cplus_decl_attributes ($<ttype>$, $5,
986 /*prefix_attributes*/ NULL_TREE);
8d08fdba
MS
987 }
988 init
989 {
9e9ff709 990 cp_finish_decl ($<ttype>7, $8, $5, 1, LOOKUP_ONLYCONVERTING);
8d08fdba
MS
991 resume_momentary ($<itype>6);
992 $$ = $<ttype>7;
993 if (TREE_CODE (TREE_TYPE ($$)) == ARRAY_TYPE)
994 cp_error ("definition of array `%#D' in condition", $$);
995 }
996 | expr
997 ;
998
863adfc0
MS
999compstmtend:
1000 '}'
1001 | maybe_label_decls stmts '}'
1002 | maybe_label_decls stmts error '}'
1003 | maybe_label_decls error '}'
1004 ;
1005
a4443a08 1006already_scoped_stmt:
5566b478
MS
1007 '{'
1008 {
1009 if (current_template_parms)
1010 {
1011 $<ttype>$ = build_min_nt (COMPOUND_STMT, NULL_TREE);
1012 COMPOUND_STMT_NO_SCOPE ($<ttype>$) = 1;
1013 add_tree ($<ttype>$);
1014 }
1015 }
1016 compstmtend
1017 {
1018 if (current_template_parms)
1019 {
1020 TREE_OPERAND ($<ttype>2, 0) = TREE_CHAIN ($<ttype>2);
1021 TREE_CHAIN ($<ttype>2) = NULL_TREE;
1022 last_tree = $<ttype>2;
1023 }
1024 finish_stmt ();
1025 }
a4443a08
MS
1026 | simple_stmt
1027 ;
1028
1029
51c184be
MS
1030nontrivial_exprlist:
1031 expr_no_commas ',' expr_no_commas
1032 { $$ = tree_cons (NULL_TREE, $$,
1033 build_tree_list (NULL_TREE, $3)); }
1034 | expr_no_commas ',' error
1035 { $$ = tree_cons (NULL_TREE, $$,
1036 build_tree_list (NULL_TREE, error_mark_node)); }
1037 | nontrivial_exprlist ',' expr_no_commas
1038 { chainon ($$, build_tree_list (NULL_TREE, $3)); }
1039 | nontrivial_exprlist ',' error
1040 { chainon ($$, build_tree_list (NULL_TREE, error_mark_node)); }
1041 ;
1042
8d08fdba
MS
1043nonnull_exprlist:
1044 expr_no_commas
1045 { $$ = build_tree_list (NULL_TREE, $$); }
51c184be 1046 | nontrivial_exprlist
8d08fdba
MS
1047 ;
1048
1049unary_expr:
1050 primary %prec UNARY
4ac14744 1051 { $$ = $1; }
8d08fdba
MS
1052 /* __extension__ turns off -pedantic for following primary. */
1053 | EXTENSION
1054 { $<itype>1 = pedantic;
1055 pedantic = 0; }
1056 cast_expr %prec UNARY
1057 { $$ = $3;
1058 pedantic = $<itype>1; }
1059 | '*' cast_expr %prec UNARY
1060 { $$ = build_x_indirect_ref ($2, "unary *"); }
1061 | '&' cast_expr %prec UNARY
1062 { $$ = build_x_unary_op (ADDR_EXPR, $2); }
51c184be 1063 | '~' cast_expr
8d08fdba
MS
1064 { $$ = build_x_unary_op (BIT_NOT_EXPR, $2); }
1065 | unop cast_expr %prec UNARY
39211cd5 1066 { $$ = build_x_unary_op ($1, $2);
8d08fdba
MS
1067 if ($1 == NEGATE_EXPR && TREE_CODE ($2) == INTEGER_CST)
1068 TREE_NEGATED_INT ($$) = 1;
1069 overflow_warning ($$);
1070 }
1071 /* Refer to the address of a label as a pointer. */
1072 | ANDAND identifier
1073 { tree label = lookup_label ($2);
1074 if (label == NULL_TREE)
1075 $$ = null_pointer_node;
1076 else
1077 {
1078 TREE_USED (label) = 1;
1079 $$ = build1 (ADDR_EXPR, ptr_type_node, label);
1080 TREE_CONSTANT ($$) = 1;
1081 }
1082 }
1083 | SIZEOF unary_expr %prec UNARY
5566b478 1084 { $$ = expr_sizeof ($2); }
51c184be 1085 | SIZEOF '(' type_id ')' %prec HYPERUNARY
46b02c6d 1086 { $$ = c_sizeof (groktypename ($3.t)); }
8d08fdba
MS
1087 | ALIGNOF unary_expr %prec UNARY
1088 { $$ = grok_alignof ($2); }
51c184be 1089 | ALIGNOF '(' type_id ')' %prec HYPERUNARY
46b02c6d
MS
1090 { $$ = c_alignof (groktypename ($3.t));
1091 check_for_new_type ("alignof", $3); }
8d08fdba 1092
39211cd5
MS
1093 /* The %prec EMPTY's here are required by the = init initializer
1094 syntax extension; see below. */
1095 | new new_type_id %prec EMPTY
46b02c6d
MS
1096 { $$ = build_new (NULL_TREE, $2.t, NULL_TREE, $1);
1097 check_for_new_type ("new", $2); }
39211cd5 1098 | new new_type_id new_initializer
46b02c6d
MS
1099 { $$ = build_new (NULL_TREE, $2.t, $3, $1);
1100 check_for_new_type ("new", $2); }
39211cd5 1101 | new new_placement new_type_id %prec EMPTY
46b02c6d
MS
1102 { $$ = build_new ($2, $3.t, NULL_TREE, $1);
1103 check_for_new_type ("new", $3); }
39211cd5 1104 | new new_placement new_type_id new_initializer
46b02c6d
MS
1105 { $$ = build_new ($2, $3.t, $4, $1);
1106 check_for_new_type ("new", $3); }
39211cd5 1107 | new '(' type_id ')' %prec EMPTY
46b02c6d
MS
1108 { $$ = build_new (NULL_TREE, groktypename($3.t),
1109 NULL_TREE, $1);
1110 check_for_new_type ("new", $3); }
39211cd5 1111 | new '(' type_id ')' new_initializer
46b02c6d
MS
1112 { $$ = build_new (NULL_TREE, groktypename($3.t), $5, $1);
1113 check_for_new_type ("new", $3); }
39211cd5 1114 | new new_placement '(' type_id ')' %prec EMPTY
46b02c6d
MS
1115 { $$ = build_new ($2, groktypename($4.t), NULL_TREE, $1);
1116 check_for_new_type ("new", $4); }
39211cd5 1117 | new new_placement '(' type_id ')' new_initializer
46b02c6d
MS
1118 { $$ = build_new ($2, groktypename($4.t), $6, $1);
1119 check_for_new_type ("new", $4); }
8d08fdba
MS
1120
1121 | delete cast_expr %prec UNARY
a28e3c7f 1122 { $$ = delete_sanity ($2, NULL_TREE, 0, $1); }
8d08fdba 1123 | delete '[' ']' cast_expr %prec UNARY
a28e3c7f 1124 { $$ = delete_sanity ($4, NULL_TREE, 1, $1);
8d08fdba
MS
1125 if (yychar == YYEMPTY)
1126 yychar = YYLEX; }
1127 | delete '[' expr ']' cast_expr %prec UNARY
a28e3c7f 1128 { $$ = delete_sanity ($5, $3, 2, $1);
8d08fdba
MS
1129 if (yychar == YYEMPTY)
1130 yychar = YYLEX; }
1131 ;
1132
39211cd5
MS
1133new_placement:
1134 '(' nonnull_exprlist ')'
1135 { $$ = $2; }
1136 | '{' nonnull_exprlist '}'
1137 {
1138 $$ = $2;
1139 pedwarn ("old style placement syntax, use () instead");
1140 }
1141 ;
1142
1143new_initializer:
1144 '(' nonnull_exprlist ')'
1145 { $$ = $2; }
1146 | LEFT_RIGHT
1147 { $$ = NULL_TREE; }
1148 | '(' typespec ')'
1149 {
46b02c6d 1150 cp_error ("`%T' is not a valid expression", $2.t);
39211cd5
MS
1151 $$ = error_mark_node;
1152 }
1153 /* GNU extension so people can use initializer lists. Note that
1154 this alters the meaning of `new int = 1', which was previously
1155 syntactically valid but semantically invalid. */
1156 | '=' init
1157 {
b7484fbe 1158 if (pedantic)
39211cd5
MS
1159 pedwarn ("ANSI C++ forbids initialization of new expression with `='");
1160 $$ = $2;
1161 }
1162 ;
1163
51c184be
MS
1164/* This is necessary to postpone reduction of `int ((int)(int)(int))'. */
1165regcast_or_absdcl:
1166 '(' type_id ')' %prec EMPTY
46b02c6d
MS
1167 { $2.t = tree_cons (NULL_TREE, $2.t, void_list_node);
1168 TREE_PARMLIST ($2.t) = 1;
1169 $$ = build_parse_node (CALL_EXPR, NULL_TREE, $2.t,
1170 NULL_TREE);
1171 check_for_new_type ("cast", $2); }
51c184be 1172 | regcast_or_absdcl '(' type_id ')' %prec EMPTY
46b02c6d
MS
1173 { $3.t = tree_cons (NULL_TREE, $3.t, void_list_node);
1174 TREE_PARMLIST ($3.t) = 1;
1175 $$ = build_parse_node (CALL_EXPR, $$, $3.t, NULL_TREE);
1176 check_for_new_type ("cast", $3); }
51c184be
MS
1177 ;
1178
8d08fdba 1179cast_expr:
f30432d7
MS
1180 unary_expr
1181 | regcast_or_absdcl unary_expr %prec UNARY
51c184be
MS
1182 { $$ = reparse_absdcl_as_casts ($$, $2); }
1183 | regcast_or_absdcl '{' initlist maybecomma '}' %prec UNARY
1184 {
1185 tree init = build_nt (CONSTRUCTOR, NULL_TREE,
1186 nreverse ($3));
b7484fbe 1187 if (pedantic)
51c184be
MS
1188 pedwarn ("ANSI C++ forbids constructor-expressions");
1189 /* Indicate that this was a GNU C constructor expression. */
1190 TREE_HAS_CONSTRUCTOR (init) = 1;
8d08fdba 1191
51c184be 1192 $$ = reparse_absdcl_as_casts ($$, init);
8d08fdba 1193 }
51c184be
MS
1194 ;
1195
8d08fdba
MS
1196expr_no_commas:
1197 cast_expr
51c184be
MS
1198 /* Handle general members. */
1199 | expr_no_commas POINTSAT_STAR expr_no_commas
1200 { $$ = build_x_binary_op (MEMBER_REF, $$, $3); }
1201 | expr_no_commas DOT_STAR expr_no_commas
1202 { $$ = build_m_component_ref ($$, $3); }
8d08fdba
MS
1203 | expr_no_commas '+' expr_no_commas
1204 { $$ = build_x_binary_op ($2, $$, $3); }
1205 | expr_no_commas '-' expr_no_commas
1206 { $$ = build_x_binary_op ($2, $$, $3); }
1207 | expr_no_commas '*' expr_no_commas
1208 { $$ = build_x_binary_op ($2, $$, $3); }
1209 | expr_no_commas '/' expr_no_commas
1210 { $$ = build_x_binary_op ($2, $$, $3); }
1211 | expr_no_commas '%' expr_no_commas
1212 { $$ = build_x_binary_op ($2, $$, $3); }
1213 | expr_no_commas LSHIFT expr_no_commas
1214 { $$ = build_x_binary_op ($2, $$, $3); }
1215 | expr_no_commas RSHIFT expr_no_commas
1216 { $$ = build_x_binary_op ($2, $$, $3); }
1217 | expr_no_commas ARITHCOMPARE expr_no_commas
1218 { $$ = build_x_binary_op ($2, $$, $3); }
1219 | expr_no_commas '<' expr_no_commas
1220 { $$ = build_x_binary_op (LT_EXPR, $$, $3); }
1221 | expr_no_commas '>' expr_no_commas
1222 { $$ = build_x_binary_op (GT_EXPR, $$, $3); }
1223 | expr_no_commas EQCOMPARE expr_no_commas
1224 { $$ = build_x_binary_op ($2, $$, $3); }
1225 | expr_no_commas MIN_MAX expr_no_commas
1226 { $$ = build_x_binary_op ($2, $$, $3); }
1227 | expr_no_commas '&' expr_no_commas
1228 { $$ = build_x_binary_op ($2, $$, $3); }
1229 | expr_no_commas '|' expr_no_commas
1230 { $$ = build_x_binary_op ($2, $$, $3); }
1231 | expr_no_commas '^' expr_no_commas
1232 { $$ = build_x_binary_op ($2, $$, $3); }
1233 | expr_no_commas ANDAND expr_no_commas
1234 { $$ = build_x_binary_op (TRUTH_ANDIF_EXPR, $$, $3); }
1235 | expr_no_commas OROR expr_no_commas
1236 { $$ = build_x_binary_op (TRUTH_ORIF_EXPR, $$, $3); }
1237 | expr_no_commas '?' xexpr ':' expr_no_commas
1238 { $$ = build_x_conditional_expr ($$, $3, $5); }
1239 | expr_no_commas '=' expr_no_commas
5566b478 1240 { $$ = build_x_modify_expr ($$, NOP_EXPR, $3);
e1cd6e56 1241 C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR); }
8d08fdba 1242 | expr_no_commas ASSIGN expr_no_commas
5566b478 1243 { $$ = build_x_modify_expr ($$, $2, $3); }
8d2733ca
MS
1244 | THROW
1245 { $$ = build_throw (NULL_TREE); }
1246 | THROW expr_no_commas
1247 { $$ = build_throw ($2); }
8d08fdba
MS
1248/* These extensions are not defined. The second arg to build_m_component_ref
1249 is old, build_m_component_ref now does an implicit
1250 build_indirect_ref (x, NULL_PTR) on the second argument.
1251 | object '&' expr_no_commas %prec UNARY
1252 { $$ = build_m_component_ref ($$, build_x_unary_op (ADDR_EXPR, $3)); }
1253 | object unop expr_no_commas %prec UNARY
1254 { $$ = build_m_component_ref ($$, build_x_unary_op ($2, $3)); }
51c184be 1255 | object '(' type_id ')' expr_no_commas %prec UNARY
46b02c6d 1256 { tree type = groktypename ($3.t);
6060a796 1257 $$ = build_m_component_ref ($$, build_c_cast (type, $5, 0)); }
8d08fdba
MS
1258 | object primary_no_id %prec UNARY
1259 { $$ = build_m_component_ref ($$, $2); }
1260*/
1261 ;
1262
51c184be 1263notype_unqualified_id:
a28e3c7f
MS
1264 '~' see_typename identifier
1265 { $$ = build_parse_node (BIT_NOT_EXPR, $3); }
8d08fdba 1266 | operator_name
51c184be 1267 | IDENTIFIER
6060a796
MS
1268 | PTYPENAME
1269 | NSNAME %prec EMPTY
51c184be
MS
1270 ;
1271
a28e3c7f
MS
1272unqualified_id:
1273 notype_unqualified_id
1274 | TYPENAME
a80e4195 1275 | SELFNAME
a28e3c7f
MS
1276 ;
1277
51c184be 1278expr_or_declarator:
a28e3c7f 1279 notype_unqualified_id
a28e3c7f 1280 | '*' expr_or_declarator %prec UNARY
51c184be
MS
1281 { $$ = build_parse_node (INDIRECT_REF, $2); }
1282 | '&' expr_or_declarator %prec UNARY
1283 { $$ = build_parse_node (ADDR_EXPR, $2); }
4cabb798
JM
1284 | '(' expr_or_declarator ')'
1285 { $$ = $2; }
51c184be
MS
1286 ;
1287
1288direct_notype_declarator:
1289 complex_direct_notype_declarator
1290 | notype_unqualified_id
4cabb798
JM
1291 | '(' expr_or_declarator ')'
1292 { $$ = finish_decl_parsing ($2); }
51c184be
MS
1293 ;
1294
1295primary:
1296 notype_unqualified_id
8d08fdba 1297 {
51c184be
MS
1298 if (TREE_CODE ($$) == BIT_NOT_EXPR)
1299 $$ = build_x_unary_op (BIT_NOT_EXPR, TREE_OPERAND ($$, 0));
51c184be 1300 else
5566b478 1301 $$ = do_identifier ($$, 1);
51c184be 1302 }
8d08fdba 1303 | CONSTANT
2986ae00 1304 | boolean.literal
8d08fdba 1305 | string
5566b478
MS
1306 {
1307 if (current_template_parms)
1308 push_obstacks (&permanent_obstack, &permanent_obstack);
1309 $$ = combine_strings ($$);
1310 if (current_template_parms)
1311 pop_obstacks ();
1312 }
8d08fdba 1313 | '(' expr ')'
e3417fcd
MS
1314 { char class;
1315 $$ = $2;
1316 class = TREE_CODE_CLASS (TREE_CODE ($$));
1317 if (class == 'e' || class == '1'
1318 || class == '2' || class == '<')
e92cc029 1319 /* This inhibits warnings in truthvalue_conversion. */
e3417fcd
MS
1320 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK); }
1321 | '(' expr_or_declarator ')'
1322 { char class;
1323 $$ = reparse_decl_as_expr (NULL_TREE, $2);
1324 class = TREE_CODE_CLASS (TREE_CODE ($$));
e1cd6e56
MS
1325 if (class == 'e' || class == '1'
1326 || class == '2' || class == '<')
e92cc029 1327 /* This inhibits warnings in truthvalue_conversion. */
e3417fcd 1328 C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK); }
8d08fdba
MS
1329 | '(' error ')'
1330 { $$ = error_mark_node; }
1331 | '('
1332 { if (current_function_decl == 0)
1333 {
1334 error ("braced-group within expression allowed only inside a function");
1335 YYERROR;
1336 }
1337 keep_next_level ();
1338 $<ttype>$ = expand_start_stmt_expr (); }
1339 compstmt ')'
1340 { tree rtl_exp;
b7484fbe 1341 if (pedantic)
8d08fdba
MS
1342 pedwarn ("ANSI C++ forbids braced-groups within expressions");
1343 rtl_exp = expand_end_stmt_expr ($<ttype>2);
1344 /* The statements have side effects, so the group does. */
1345 TREE_SIDE_EFFECTS (rtl_exp) = 1;
1346
1347 if (TREE_CODE ($3) == BLOCK)
1348 {
1349 /* Make a BIND_EXPR for the BLOCK already made. */
1350 $$ = build (BIND_EXPR, TREE_TYPE (rtl_exp),
1351 NULL_TREE, rtl_exp, $3);
1352 /* Remove the block from the tree at this point.
1353 It gets put back at the proper place
1354 when the BIND_EXPR is expanded. */
1355 delete_block ($3);
1356 }
1357 else
1358 $$ = $3;
1359 }
1360 | primary '(' nonnull_exprlist ')'
5566b478 1361 {
4ac14744 1362 $$ = build_x_function_call ($1, $3, current_class_ref);
5566b478
MS
1363 if (TREE_CODE ($$) == CALL_EXPR
1364 && TREE_TYPE ($$) != void_type_node)
1365 $$ = require_complete_type ($$);
8d08fdba
MS
1366 }
1367 | primary LEFT_RIGHT
1368 {
4ac14744 1369 $$ = build_x_function_call ($$, NULL_TREE, current_class_ref);
8d08fdba
MS
1370 if (TREE_CODE ($$) == CALL_EXPR
1371 && TREE_TYPE ($$) != void_type_node)
1372 $$ = require_complete_type ($$);
1373 }
1374 | primary '[' expr ']'
8926095f 1375 { $$ = grok_array_decl ($$, $3); }
8d08fdba
MS
1376 | primary PLUSPLUS
1377 { /* If we get an OFFSET_REF, turn it into what it really
1378 means (e.g., a COMPONENT_REF). This way if we've got,
1379 say, a reference to a static member that's being operated
1380 on, we don't end up trying to find a member operator for
1381 the class it's in. */
1382 if (TREE_CODE ($$) == OFFSET_REF)
1383 $$ = resolve_offset_ref ($$);
1384 $$ = build_x_unary_op (POSTINCREMENT_EXPR, $$); }
1385 | primary MINUSMINUS
1386 { if (TREE_CODE ($$) == OFFSET_REF)
1387 $$ = resolve_offset_ref ($$);
1388 $$ = build_x_unary_op (POSTDECREMENT_EXPR, $$); }
1389 /* C++ extensions */
1390 | THIS
4ac14744 1391 { if (current_class_ptr)
8d08fdba
MS
1392 {
1393#ifdef WARNING_ABOUT_CCD
4ac14744 1394 TREE_USED (current_class_ptr) = 1;
8d08fdba 1395#endif
4ac14744 1396 $$ = current_class_ptr;
8d08fdba
MS
1397 }
1398 else if (current_function_decl
1399 && DECL_STATIC_FUNCTION_P (current_function_decl))
1400 {
1401 error ("`this' is unavailable for static member functions");
1402 $$ = error_mark_node;
1403 }
1404 else
1405 {
1406 if (current_function_decl)
1407 error ("invalid use of `this' in non-member function");
1408 else
1409 error ("invalid use of `this' at top level");
1410 $$ = error_mark_node;
1411 }
1412 }
1413 | TYPE_QUAL '(' nonnull_exprlist ')'
1414 {
1415 tree type;
1416 tree id = $$;
1417
1418 /* This is a C cast in C++'s `functional' notation. */
1419 if ($3 == error_mark_node)
1420 {
1421 $$ = error_mark_node;
1422 break;
1423 }
1424#if 0
1425 if ($3 == NULL_TREE)
1426 {
1427 error ("cannot cast null list to type `%s'",
1428 IDENTIFIER_POINTER (TYPE_NAME (id)));
1429 $$ = error_mark_node;
1430 break;
1431 }
1432#endif
1433#if 0
1434 /* type is not set! (mrs) */
1435 if (type == error_mark_node)
1436 $$ = error_mark_node;
1437 else
1438#endif
1439 {
1440 if (id == ridpointers[(int) RID_CONST])
1441 type = build_type_variant (integer_type_node, 1, 0);
1442 else if (id == ridpointers[(int) RID_VOLATILE])
1443 type = build_type_variant (integer_type_node, 0, 1);
1444#if 0
1445 /* should not be able to get here (mrs) */
1446 else if (id == ridpointers[(int) RID_FRIEND])
1447 {
1448 error ("cannot cast expression to `friend' type");
1449 $$ = error_mark_node;
1450 break;
1451 }
1452#endif
1453 else my_friendly_abort (79);
6060a796 1454 $$ = build_c_cast (type, build_compound_expr ($3), 1);
8d08fdba
MS
1455 }
1456 }
51c184be 1457 | functional_cast
46b02c6d
MS
1458 | DYNAMIC_CAST '<' type_id '>' '(' expr ')'
1459 { tree type = groktypename ($3.t);
1460 check_for_new_type ("dynamic_cast", $3);
1461 $$ = build_dynamic_cast (type, $6); }
1462 | STATIC_CAST '<' type_id '>' '(' expr ')'
1463 { tree type = groktypename ($3.t);
1464 check_for_new_type ("static_cast", $3);
1465 $$ = build_static_cast (type, $6); }
1466 | REINTERPRET_CAST '<' type_id '>' '(' expr ')'
1467 { tree type = groktypename ($3.t);
1468 check_for_new_type ("reinterpret_cast", $3);
1469 $$ = build_reinterpret_cast (type, $6); }
1470 | CONST_CAST '<' type_id '>' '(' expr ')'
1471 { tree type = groktypename ($3.t);
1472 check_for_new_type ("const_cast", $3);
1473 $$ = build_const_cast (type, $6); }
8d08fdba
MS
1474 | TYPEID '(' expr ')'
1475 { $$ = build_typeid ($3); }
51c184be 1476 | TYPEID '(' type_id ')'
46b02c6d
MS
1477 { tree type = groktypename ($3.t);
1478 check_for_new_type ("typeid", $3);
8145f082 1479 $$ = get_typeid (TYPE_MAIN_VARIANT (type)); }
a28e3c7f 1480 | global_scope IDENTIFIER
5566b478 1481 { $$ = do_scoped_id ($2, 1); }
a28e3c7f 1482 | global_scope operator_name
8d08fdba 1483 {
a28e3c7f 1484 got_scope = NULL_TREE;
8d08fdba 1485 if (TREE_CODE ($2) == IDENTIFIER_NODE)
5566b478
MS
1486 $$ = do_scoped_id ($2, 1);
1487 else
1488 $$ = $2;
8d08fdba 1489 }
a28e3c7f
MS
1490 | overqualified_id %prec HYPERUNARY
1491 { $$ = build_offset_ref (OP0 ($$), OP1 ($$)); }
1492 | overqualified_id '(' nonnull_exprlist ')'
5566b478 1493 { if (current_template_parms)
4dabb379 1494 $$ = build_min_nt (CALL_EXPR, copy_to_permanent ($1), $3, NULL_TREE);
5566b478
MS
1495 else
1496 $$ = build_member_call (OP0 ($$), OP1 ($$), $3); }
a28e3c7f 1497 | overqualified_id LEFT_RIGHT
5566b478
MS
1498 { if (current_template_parms)
1499 $$ = build_min_nt (CALL_EXPR, copy_to_permanent ($1),
4dabb379 1500 NULL_TREE, NULL_TREE);
5566b478
MS
1501 else
1502 $$ = build_member_call (OP0 ($$), OP1 ($$), NULL_TREE); }
a28e3c7f 1503 | object unqualified_id %prec UNARY
5566b478 1504 { $$ = build_component_ref ($$, $2, NULL_TREE, 1); }
b7484fbe 1505 | object overqualified_id %prec UNARY
5566b478
MS
1506 { if (current_template_parms)
1507 $$ = build_min_nt (COMPONENT_REF, $1, copy_to_permanent ($2));
1508 else
1509 $$ = build_object_ref ($$, OP0 ($2), OP1 ($2)); }
a28e3c7f 1510 | object unqualified_id '(' nonnull_exprlist ')'
8d08fdba
MS
1511 {
1512#if 0
1513 /* This is a future direction of this code, but because
1514 build_x_function_call cannot always undo what is done
e92cc029 1515 in build_component_ref entirely yet, we cannot do this. */
4ac14744 1516 $$ = build_x_function_call (build_component_ref ($$, $2, NULL_TREE, 1), $4, current_class_ref);
8d08fdba
MS
1517 if (TREE_CODE ($$) == CALL_EXPR
1518 && TREE_TYPE ($$) != void_type_node)
1519 $$ = require_complete_type ($$);
1520#else
1521 $$ = build_method_call ($$, $2, $4, NULL_TREE,
4ac14744 1522 LOOKUP_NORMAL);
8d08fdba
MS
1523#endif
1524 }
a28e3c7f 1525 | object unqualified_id LEFT_RIGHT
8d08fdba
MS
1526 {
1527#if 0
1528 /* This is a future direction of this code, but because
1529 build_x_function_call cannot always undo what is done
e92cc029 1530 in build_component_ref entirely yet, we cannot do this. */
4ac14744 1531 $$ = build_x_function_call (build_component_ref ($$, $2, NULL_TREE, 1), NULL_TREE, current_class_ref);
8d08fdba
MS
1532 if (TREE_CODE ($$) == CALL_EXPR
1533 && TREE_TYPE ($$) != void_type_node)
1534 $$ = require_complete_type ($$);
1535#else
1536 $$ = build_method_call ($$, $2, NULL_TREE, NULL_TREE,
4ac14744 1537 LOOKUP_NORMAL);
8d08fdba
MS
1538#endif
1539 }
b7484fbe 1540 | object overqualified_id '(' nonnull_exprlist ')'
8d08fdba 1541 {
be99da77 1542 if (IS_SIGNATURE (OP0 ($2)))
8d08fdba
MS
1543 {
1544 warning ("signature name in scope resolution ignored");
a28e3c7f 1545 $$ = build_method_call ($$, OP1 ($2), $4, NULL_TREE,
4ac14744 1546 LOOKUP_NORMAL);
8d08fdba
MS
1547 }
1548 else
a28e3c7f 1549 $$ = build_scoped_method_call ($$, OP0 ($2), OP1 ($2), $4);
8d08fdba 1550 }
b7484fbe 1551 | object overqualified_id LEFT_RIGHT
8d08fdba 1552 {
be99da77 1553 if (IS_SIGNATURE (OP0 ($2)))
8d08fdba
MS
1554 {
1555 warning ("signature name in scope resolution ignored");
a28e3c7f 1556 $$ = build_method_call ($$, OP1 ($2), NULL_TREE, NULL_TREE,
4ac14744 1557 LOOKUP_NORMAL);
8d08fdba
MS
1558 }
1559 else
a28e3c7f 1560 $$ = build_scoped_method_call ($$, OP0 ($2), OP1 ($2), NULL_TREE);
8d08fdba
MS
1561 }
1562 /* p->int::~int() is valid -- 12.4 */
1563 | object '~' TYPESPEC LEFT_RIGHT
e1cd6e56 1564 {
b7484fbe
MS
1565 if (IDENTIFIER_GLOBAL_VALUE ($3)
1566 && (TREE_CODE (TREE_TYPE ($1))
1567 != TREE_CODE (TREE_TYPE (IDENTIFIER_GLOBAL_VALUE ($3)))))
8d08fdba 1568 cp_error ("`%E' is not of type `%T'", $1, $3);
00595019 1569 $$ = convert (void_type_node, $1);
8d08fdba
MS
1570 }
1571 | object TYPESPEC SCOPE '~' TYPESPEC LEFT_RIGHT
e1cd6e56 1572 {
8d08fdba
MS
1573 if ($2 != $5)
1574 cp_error ("destructor specifier `%T::~%T()' must have matching names", $2, $5);
1575 if (TREE_CODE (TREE_TYPE ($1))
1576 != TREE_CODE (TREE_TYPE (IDENTIFIER_GLOBAL_VALUE ($2))))
1577 cp_error ("`%E' is not of type `%T'", $1, $2);
00595019 1578 $$ = convert (void_type_node, $1);
8d08fdba 1579 }
e1cd6e56
MS
1580 | object error
1581 {
e1cd6e56
MS
1582 $$ = error_mark_node;
1583 }
8d08fdba
MS
1584 ;
1585
1586/* Not needed for now.
1587
1588primary_no_id:
1589 '(' expr ')'
1590 { $$ = $2; }
1591 | '(' error ')'
1592 { $$ = error_mark_node; }
1593 | '('
1594 { if (current_function_decl == 0)
1595 {
1596 error ("braced-group within expression allowed only inside a function");
1597 YYERROR;
1598 }
1599 $<ttype>$ = expand_start_stmt_expr (); }
1600 compstmt ')'
b7484fbe 1601 { if (pedantic)
8d08fdba
MS
1602 pedwarn ("ANSI C++ forbids braced-groups within expressions");
1603 $$ = expand_end_stmt_expr ($<ttype>2); }
1604 | primary_no_id '(' nonnull_exprlist ')'
4ac14744 1605 { $$ = build_x_function_call ($$, $3, current_class_ref); }
8d08fdba 1606 | primary_no_id LEFT_RIGHT
4ac14744 1607 { $$ = build_x_function_call ($$, NULL_TREE, current_class_ref); }
8d08fdba
MS
1608 | primary_no_id '[' expr ']'
1609 { goto do_array; }
1610 | primary_no_id PLUSPLUS
1611 { $$ = build_x_unary_op (POSTINCREMENT_EXPR, $$); }
1612 | primary_no_id MINUSMINUS
1613 { $$ = build_x_unary_op (POSTDECREMENT_EXPR, $$); }
1614 | SCOPE IDENTIFIER
1615 { goto do_scoped_id; }
1616 | SCOPE operator_name
1617 { if (TREE_CODE ($2) == IDENTIFIER_NODE)
1618 goto do_scoped_id;
1619 goto do_scoped_operator;
1620 }
1621 ;
1622*/
1623
1624new: NEW
8d08fdba 1625 { $$ = 0; }
39211cd5 1626 | global_scope NEW
a28e3c7f 1627 { got_scope = NULL_TREE; $$ = 1; }
8d08fdba
MS
1628 ;
1629
1630delete: DELETE
a28e3c7f
MS
1631 { $$ = 0; }
1632 | global_scope delete
1633 { got_scope = NULL_TREE; $$ = 1; }
8d08fdba
MS
1634 ;
1635
2986ae00
MS
1636boolean.literal:
1637 CXX_TRUE
255512c1 1638 { $$ = boolean_true_node; }
2986ae00 1639 | CXX_FALSE
255512c1 1640 { $$ = boolean_false_node; }
2986ae00
MS
1641 ;
1642
8d08fdba
MS
1643/* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
1644string:
1645 STRING
1646 | string STRING
1647 { $$ = chainon ($$, $2); }
1648 ;
1649
1650nodecls:
1651 /* empty */
1652 {
1653 if (! current_function_parms_stored)
1654 store_parm_decls ();
1655 setup_vtbl_ptr ();
1656 /* Always keep the BLOCK node associated with the outermost
1657 pair of curley braces of a function. These are needed
1658 for correct operation of dwarfout.c. */
1659 keep_next_level ();
1660 }
1661 ;
1662
1663object: primary '.'
e1cd6e56 1664 { got_object = TREE_TYPE ($$); }
8d08fdba
MS
1665 | primary POINTSAT
1666 {
e1cd6e56
MS
1667 $$ = build_x_arrow ($$);
1668 got_object = TREE_TYPE ($$);
8d08fdba
MS
1669 }
1670 ;
1671
8d08fdba 1672decl:
a28e3c7f
MS
1673 /* Normal case: make this fast. */
1674 typespec declarator ';'
46b02c6d 1675 { tree d = get_decl_list ($1.t);
a28e3c7f
MS
1676 int yes = suspend_momentary ();
1677 d = start_decl ($2, d, 0, NULL_TREE);
9e9ff709 1678 cp_finish_decl (d, NULL_TREE, NULL_TREE, 1, 0);
a28e3c7f 1679 resume_momentary (yes);
46b02c6d
MS
1680 if (IS_AGGR_TYPE_CODE (TREE_CODE ($1.t)))
1681 note_got_semicolon ($1.t);
8d08fdba 1682 }
8d08fdba 1683 | typed_declspecs declarator ';'
f30432d7
MS
1684 { tree d, specs, attrs;
1685 int yes;
46b02c6d 1686 split_specs_attrs ($1.t, &specs, &attrs);
f30432d7
MS
1687 yes = suspend_momentary ();
1688 d = start_decl ($2, specs, 0, NULL_TREE);
1689 cplus_decl_attributes (d, NULL_TREE, attrs);
9e9ff709 1690 cp_finish_decl (d, NULL_TREE, NULL_TREE, 1, 0);
8d08fdba 1691 resume_momentary (yes);
46b02c6d 1692 note_list_got_semicolon ($1.t);
51c184be 1693 }
a28e3c7f
MS
1694 | typespec initdecls ';'
1695 {
1696 resume_momentary ($2);
46b02c6d
MS
1697 if (IS_AGGR_TYPE_CODE (TREE_CODE ($1.t)))
1698 note_got_semicolon ($1.t);
8d08fdba 1699 }
a28e3c7f
MS
1700 | typed_declspecs initdecls ';'
1701 {
1702 resume_momentary ($2);
46b02c6d 1703 note_list_got_semicolon ($1.t);
8d08fdba 1704 }
a28e3c7f
MS
1705 | declmods notype_initdecls ';'
1706 { resume_momentary ($2); }
8d08fdba
MS
1707 | typed_declspecs ';'
1708 {
46b02c6d
MS
1709 shadow_tag ($1.t);
1710 note_list_got_semicolon ($1.t);
8d08fdba
MS
1711 }
1712 | declmods ';'
1713 { warning ("empty declaration"); }
1714 ;
1715
1716/* Any kind of declarator (thus, all declarators allowed
1717 after an explicit typespec). */
1718
1719declarator:
51c184be
MS
1720 after_type_declarator %prec EMPTY
1721 | notype_declarator %prec EMPTY
1722 ;
1723
1724/* This is necessary to postpone reduction of `int()()()()'. */
1725fcast_or_absdcl:
1726 LEFT_RIGHT %prec EMPTY
1727 { $$ = build_parse_node (CALL_EXPR, NULL_TREE, empty_parms (),
1728 NULL_TREE); }
1729 | fcast_or_absdcl LEFT_RIGHT %prec EMPTY
1730 { $$ = build_parse_node (CALL_EXPR, $$, empty_parms (),
1731 NULL_TREE); }
1732 ;
1733
1734/* ANSI type-id (8.1) */
1735type_id:
1736 typed_typespecs absdcl
46b02c6d
MS
1737 { $$.t = build_decl_list ($1.t, $2);
1738 $$.new_type_flag = $1.new_type_flag; }
51c184be 1739 | nonempty_type_quals absdcl
46b02c6d
MS
1740 { $$.t = build_decl_list ($1.t, $2);
1741 $$.new_type_flag = $1.new_type_flag; }
51c184be 1742 | typespec absdcl
46b02c6d
MS
1743 { $$.t = build_decl_list (get_decl_list ($1.t), $2);
1744 $$.new_type_flag = $1.new_type_flag; }
51c184be 1745 | typed_typespecs %prec EMPTY
46b02c6d
MS
1746 { $$.t = build_decl_list ($1.t, NULL_TREE);
1747 $$.new_type_flag = $1.new_type_flag; }
51c184be 1748 | nonempty_type_quals %prec EMPTY
46b02c6d
MS
1749 { $$.t = build_decl_list ($1.t, NULL_TREE);
1750 $$.new_type_flag = $1.new_type_flag; }
8d08fdba
MS
1751 ;
1752
1753/* Declspecs which contain at least one type specifier or typedef name.
1754 (Just `const' or `volatile' is not enough.)
f30432d7
MS
1755 A typedef'd name following these is taken as a name to be declared.
1756 In the result, declspecs have a non-NULL TREE_VALUE, attributes do not. */
8d08fdba
MS
1757
1758typed_declspecs:
51c184be
MS
1759 typed_typespecs %prec EMPTY
1760 | typed_declspecs1
8ccc31eb 1761 ;
51c184be
MS
1762
1763typed_declspecs1:
1764 declmods typespec
46b02c6d
MS
1765 { $$.t = decl_tree_cons (NULL_TREE, $2.t, $1);
1766 $$.new_type_flag = $2.new_type_flag; }
8d08fdba 1767 | typespec reserved_declspecs %prec HYPERUNARY
46b02c6d
MS
1768 { $$.t = decl_tree_cons (NULL_TREE, $1.t, $2);
1769 $$.new_type_flag = $1.new_type_flag; }
b7484fbe 1770 | typespec reserved_typespecquals reserved_declspecs
46b02c6d
MS
1771 { $$.t = decl_tree_cons (NULL_TREE, $1.t, chainon ($2, $3));
1772 $$.new_type_flag = $1.new_type_flag; }
8d08fdba 1773 | declmods typespec reserved_declspecs
46b02c6d
MS
1774 { $$.t = decl_tree_cons (NULL_TREE, $2.t, chainon ($3, $1));
1775 $$.new_type_flag = $2.new_type_flag; }
8d2733ca 1776 | declmods typespec reserved_typespecquals
46b02c6d
MS
1777 { $$.t = decl_tree_cons (NULL_TREE, $2.t, chainon ($3, $1));
1778 $$.new_type_flag = $2.new_type_flag; }
8d2733ca 1779 | declmods typespec reserved_typespecquals reserved_declspecs
46b02c6d
MS
1780 { $$.t = decl_tree_cons (NULL_TREE, $2.t,
1781 chainon ($3, chainon ($4, $1)));
1782 $$.new_type_flag = $2.new_type_flag; }
8d08fdba
MS
1783 ;
1784
51c184be
MS
1785reserved_declspecs:
1786 SCSPEC
8d08fdba
MS
1787 { if (extra_warnings)
1788 warning ("`%s' is not at beginning of declaration",
1789 IDENTIFIER_POINTER ($$));
1790 $$ = build_decl_list (NULL_TREE, $$); }
1791 | reserved_declspecs typespecqual_reserved
46b02c6d 1792 { $$ = decl_tree_cons (NULL_TREE, $2.t, $$); }
8d08fdba
MS
1793 | reserved_declspecs SCSPEC
1794 { if (extra_warnings)
1795 warning ("`%s' is not at beginning of declaration",
1796 IDENTIFIER_POINTER ($2));
1797 $$ = decl_tree_cons (NULL_TREE, $2, $$); }
f30432d7
MS
1798 | reserved_declspecs attributes
1799 { $$ = decl_tree_cons ($2, NULL_TREE, $1); }
1800 | attributes
1801 { $$ = decl_tree_cons ($1, NULL_TREE, NULL_TREE); }
8d08fdba
MS
1802 ;
1803
1804/* List of just storage classes and type modifiers.
1805 A declaration can start with just this, but then it cannot be used
f30432d7
MS
1806 to redeclare a typedef-name.
1807 In the result, declspecs have a non-NULL TREE_VALUE, attributes do not. */
8d08fdba
MS
1808
1809declmods:
51c184be 1810 nonempty_type_quals %prec EMPTY
46b02c6d 1811 { $$ = $1.t; TREE_STATIC ($$) = 1; }
8d08fdba
MS
1812 | SCSPEC
1813 { $$ = IDENTIFIER_AS_LIST ($$); }
1814 | declmods TYPE_QUAL
51c184be 1815 { $$ = decl_tree_cons (NULL_TREE, $2, $$);
8d08fdba
MS
1816 TREE_STATIC ($$) = 1; }
1817 | declmods SCSPEC
1818 { if (extra_warnings && TREE_STATIC ($$))
1819 warning ("`%s' is not at beginning of declaration",
1820 IDENTIFIER_POINTER ($2));
51c184be 1821 $$ = decl_tree_cons (NULL_TREE, $2, $$);
8d08fdba 1822 TREE_STATIC ($$) = TREE_STATIC ($1); }
f30432d7
MS
1823 | declmods attributes
1824 { $$ = decl_tree_cons ($2, NULL_TREE, $1); }
1825 | attributes
1826 { $$ = decl_tree_cons ($1, NULL_TREE, NULL_TREE); }
8d08fdba
MS
1827 ;
1828
8d08fdba
MS
1829/* Used instead of declspecs where storage classes are not allowed
1830 (that is, for typenames and structure components).
1831
1832 C++ can takes storage classes for structure components.
1833 Don't accept a typedef-name if anything but a modifier precedes it. */
1834
1835typed_typespecs:
1836 typespec %prec EMPTY
46b02c6d
MS
1837 { $$.t = get_decl_list ($1.t);
1838 $$.new_type_flag = $1.new_type_flag; }
8d08fdba 1839 | nonempty_type_quals typespec
46b02c6d
MS
1840 { $$.t = decl_tree_cons (NULL_TREE, $2.t, $1.t);
1841 $$.new_type_flag = $2.new_type_flag; }
8d08fdba 1842 | typespec reserved_typespecquals
46b02c6d
MS
1843 { $$.t = decl_tree_cons (NULL_TREE, $1.t, $2);
1844 $$.new_type_flag = $1.new_type_flag; }
8d08fdba 1845 | nonempty_type_quals typespec reserved_typespecquals
46b02c6d
MS
1846 { $$.t = decl_tree_cons (NULL_TREE, $2.t, chainon ($3, $1.t));
1847 $$.new_type_flag = $1.new_type_flag; }
8d08fdba
MS
1848 ;
1849
1850reserved_typespecquals:
1851 typespecqual_reserved
46b02c6d 1852 { $$ = build_decl_list (NULL_TREE, $1.t); }
8d08fdba 1853 | reserved_typespecquals typespecqual_reserved
46b02c6d 1854 { $$ = decl_tree_cons (NULL_TREE, $2.t, $1); }
8d08fdba
MS
1855 ;
1856
1857/* A typespec (but not a type qualifier).
1858 Once we have seen one of these in a declaration,
1859 if a typedef name appears then it is being redeclared. */
1860
1861typespec: structsp
1862 | TYPESPEC %prec EMPTY
46b02c6d 1863 { $$.t = $1; $$.new_type_flag = 0; }
a28e3c7f 1864 | complete_type_name
46b02c6d 1865 { $$.t = $1; $$.new_type_flag = 0; }
8d08fdba 1866 | TYPEOF '(' expr ')'
46b02c6d
MS
1867 { $$.t = TREE_TYPE ($3);
1868 $$.new_type_flag = 0;
f30432d7 1869 if (pedantic && !in_system_header)
8d08fdba 1870 pedwarn ("ANSI C++ forbids `typeof'"); }
51c184be 1871 | TYPEOF '(' type_id ')'
46b02c6d 1872 { $$.t = groktypename ($3.t);
f30432d7 1873 if (pedantic && !in_system_header)
46b02c6d
MS
1874 pedwarn ("ANSI C++ forbids `typeof'");
1875 $$.new_type_flag = 0; }
8d08fdba
MS
1876 | SIGOF '(' expr ')'
1877 { tree type = TREE_TYPE ($3);
1878
46b02c6d 1879 $$.new_type_flag = 0;
8d08fdba
MS
1880 if (IS_AGGR_TYPE (type))
1881 {
1882 sorry ("sigof type specifier");
46b02c6d 1883 $$.t = type;
8d08fdba
MS
1884 }
1885 else
1886 {
1887 error ("`sigof' applied to non-aggregate expression");
46b02c6d 1888 $$.t = error_mark_node;
8d08fdba
MS
1889 }
1890 }
51c184be 1891 | SIGOF '(' type_id ')'
46b02c6d 1892 { tree type = groktypename ($3.t);
8d08fdba 1893
46b02c6d 1894 $$.new_type_flag = 0;
8d08fdba
MS
1895 if (IS_AGGR_TYPE (type))
1896 {
1897 sorry ("sigof type specifier");
46b02c6d 1898 $$.t = type;
8d08fdba
MS
1899 }
1900 else
1901 {
8d2733ca 1902 error("`sigof' applied to non-aggregate type");
46b02c6d 1903 $$.t = error_mark_node;
8d08fdba
MS
1904 }
1905 }
8d08fdba
MS
1906 ;
1907
1908/* A typespec that is a reserved word, or a type qualifier. */
1909
1910typespecqual_reserved: TYPESPEC
46b02c6d 1911 { $$.t = $1; $$.new_type_flag = 0; }
8d08fdba 1912 | TYPE_QUAL
46b02c6d 1913 { $$.t = $1; $$.new_type_flag = 0; }
8d08fdba
MS
1914 | structsp
1915 ;
1916
1917initdecls:
1918 initdcl0
1919 | initdecls ',' initdcl
1920 ;
1921
1922notype_initdecls:
1923 notype_initdcl0
1924 | notype_initdecls ',' initdcl
1925 ;
1926
a28e3c7f
MS
1927nomods_initdecls:
1928 nomods_initdcl0
1929 | nomods_initdecls ',' initdcl
1930 ;
1931
8d08fdba
MS
1932maybeasm:
1933 /* empty */
1934 { $$ = NULL_TREE; }
1935 | asm_keyword '(' string ')'
1936 { if (TREE_CHAIN ($3)) $3 = combine_strings ($3); $$ = $3; }
1937 ;
1938
1939initdcl0:
e3417fcd 1940 declarator exception_specification_opt maybeasm maybe_attribute '='
f30432d7
MS
1941 { split_specs_attrs ($<ttype>0, &current_declspecs,
1942 &prefix_attributes);
51c184be
MS
1943 if (TREE_CODE (current_declspecs) != TREE_LIST)
1944 current_declspecs = get_decl_list (current_declspecs);
8926095f
MS
1945 if (have_extern_spec && !used_extern_spec)
1946 {
1947 current_declspecs = decl_tree_cons
1948 (NULL_TREE, get_identifier ("extern"),
1949 current_declspecs);
1950 used_extern_spec = 1;
1951 }
8d08fdba
MS
1952 $<itype>5 = suspend_momentary ();
1953 $<ttype>$ = start_decl ($<ttype>1, current_declspecs, 1, $2);
f6abb50a 1954 cplus_decl_attributes ($<ttype>$, $4, prefix_attributes); }
8d08fdba
MS
1955 init
1956/* Note how the declaration of the variable is in effect while its init is parsed! */
9e9ff709 1957 { cp_finish_decl ($<ttype>6, $7, $3, 1, LOOKUP_ONLYCONVERTING);
8d08fdba 1958 $$ = $<itype>5; }
e3417fcd 1959 | declarator exception_specification_opt maybeasm maybe_attribute
8d08fdba 1960 { tree d;
f30432d7
MS
1961 split_specs_attrs ($<ttype>0, &current_declspecs,
1962 &prefix_attributes);
51c184be
MS
1963 if (TREE_CODE (current_declspecs) != TREE_LIST)
1964 current_declspecs = get_decl_list (current_declspecs);
8926095f
MS
1965 if (have_extern_spec && !used_extern_spec)
1966 {
1967 current_declspecs = decl_tree_cons
1968 (NULL_TREE, get_identifier ("extern"),
1969 current_declspecs);
1970 used_extern_spec = 1;
1971 }
8d08fdba
MS
1972 $$ = suspend_momentary ();
1973 d = start_decl ($<ttype>1, current_declspecs, 0, $2);
f6abb50a 1974 cplus_decl_attributes (d, $4, prefix_attributes);
9e9ff709 1975 cp_finish_decl (d, NULL_TREE, $3, 1, 0); }
8d08fdba
MS
1976 ;
1977
1978initdcl:
e3417fcd 1979 declarator exception_specification_opt maybeasm maybe_attribute '='
8d08fdba 1980 { $<ttype>$ = start_decl ($<ttype>1, current_declspecs, 1, $2);
f6abb50a 1981 cplus_decl_attributes ($<ttype>$, $4, prefix_attributes); }
8d08fdba
MS
1982 init
1983/* Note how the declaration of the variable is in effect while its init is parsed! */
9e9ff709 1984 { cp_finish_decl ($<ttype>6, $7, $3, 1, LOOKUP_ONLYCONVERTING); }
e3417fcd 1985 | declarator exception_specification_opt maybeasm maybe_attribute
2986ae00 1986 { $<ttype>$ = start_decl ($<ttype>1, current_declspecs, 0, $2);
f6abb50a 1987 cplus_decl_attributes ($<ttype>$, $4, prefix_attributes);
9e9ff709 1988 cp_finish_decl ($<ttype>$, NULL_TREE, $3, 1, 0); }
8d08fdba
MS
1989 ;
1990
1991notype_initdcl0:
e3417fcd 1992 notype_declarator exception_specification_opt maybeasm maybe_attribute '='
f30432d7
MS
1993 { split_specs_attrs ($<ttype>0, &current_declspecs,
1994 &prefix_attributes);
8d08fdba
MS
1995 $<itype>5 = suspend_momentary ();
1996 $<ttype>$ = start_decl ($<ttype>1, current_declspecs, 1, $2);
f6abb50a 1997 cplus_decl_attributes ($<ttype>$, $4, prefix_attributes); }
8d08fdba
MS
1998 init
1999/* Note how the declaration of the variable is in effect while its init is parsed! */
9e9ff709 2000 { cp_finish_decl ($<ttype>6, $7, $3, 1, LOOKUP_ONLYCONVERTING);
8d08fdba 2001 $$ = $<itype>5; }
e3417fcd 2002 | notype_declarator exception_specification_opt maybeasm maybe_attribute
8d08fdba 2003 { tree d;
f30432d7
MS
2004 split_specs_attrs ($<ttype>0, &current_declspecs,
2005 &prefix_attributes);
8d08fdba
MS
2006 $$ = suspend_momentary ();
2007 d = start_decl ($<ttype>1, current_declspecs, 0, $2);
f6abb50a 2008 cplus_decl_attributes (d, $4, prefix_attributes);
9e9ff709 2009 cp_finish_decl (d, NULL_TREE, $3, 1, 0); }
8d08fdba
MS
2010 ;
2011
a28e3c7f 2012nomods_initdcl0:
e3417fcd 2013 notype_declarator exception_specification_opt maybeasm maybe_attribute '='
a28e3c7f 2014 { current_declspecs = NULL_TREE;
f30432d7 2015 prefix_attributes = NULL_TREE;
a28e3c7f
MS
2016 $<itype>5 = suspend_momentary ();
2017 $<ttype>$ = start_decl ($1, current_declspecs, 1, $2);
f6abb50a 2018 cplus_decl_attributes ($<ttype>$, $4, prefix_attributes); }
a28e3c7f
MS
2019 init
2020/* Note how the declaration of the variable is in effect while its init is parsed! */
9e9ff709 2021 { cp_finish_decl ($<ttype>6, $7, $3, 1, LOOKUP_ONLYCONVERTING);
a28e3c7f 2022 $$ = $<itype>5; }
e3417fcd 2023 | notype_declarator exception_specification_opt maybeasm maybe_attribute
a28e3c7f
MS
2024 { tree d;
2025 current_declspecs = NULL_TREE;
f30432d7 2026 prefix_attributes = NULL_TREE;
a28e3c7f
MS
2027 $$ = suspend_momentary ();
2028 d = start_decl ($1, current_declspecs, 0, $2);
f6abb50a 2029 cplus_decl_attributes (d, $4, prefix_attributes);
9e9ff709 2030 cp_finish_decl (d, NULL_TREE, $3, 1, 0); }
a28e3c7f
MS
2031 ;
2032
8d08fdba 2033/* the * rules are dummies to accept the Apollo extended syntax
e92cc029 2034 so that the header files compile. */
8d08fdba 2035maybe_attribute:
2986ae00
MS
2036 /* empty */
2037 { $$ = NULL_TREE; }
2038 | attributes
2039 { $$ = $1; }
2040 ;
2041
2042attributes:
2043 attribute
2044 { $$ = $1; }
2045 | attributes attribute
2046 { $$ = chainon ($1, $2); }
2047 ;
2048
2049attribute:
2050 ATTRIBUTE '(' '(' attribute_list ')' ')'
2051 { $$ = $4; }
2052 ;
2053
2054attribute_list:
2055 attrib
44a8d0b3 2056 { $$ = $1; }
2986ae00 2057 | attribute_list ',' attrib
44a8d0b3 2058 { $$ = chainon ($1, $3); }
2986ae00
MS
2059 ;
2060
2061attrib:
8d08fdba 2062 /* empty */
2986ae00
MS
2063 { $$ = NULL_TREE; }
2064 | any_word
44a8d0b3 2065 { $$ = build_tree_list ($1, NULL_TREE); }
2986ae00 2066 | any_word '(' IDENTIFIER ')'
44a8d0b3 2067 { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
2986ae00 2068 | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
44a8d0b3 2069 { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
2986ae00 2070 | any_word '(' nonnull_exprlist ')'
44a8d0b3 2071 { $$ = build_tree_list ($1, $3); }
2986ae00
MS
2072 ;
2073
2074/* This still leaves out most reserved keywords,
2075 shouldn't we include them? */
2076
2077any_word:
2078 identifier
2079 | SCSPEC
2080 | TYPESPEC
2081 | TYPE_QUAL
2082 ;
8d08fdba
MS
2083
2084/* A nonempty list of identifiers, including typenames. */
2085identifiers_or_typenames:
2086 identifier
2087 { $$ = build_tree_list (NULL_TREE, $1); }
2088 | identifiers_or_typenames ',' identifier
2089 { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
2090 ;
2091
e3417fcd
MS
2092maybe_init:
2093 %prec EMPTY /* empty */
2094 { $$ = NULL_TREE; }
2095 | '=' init
2096 { $$ = $2; }
2097
5566b478
MS
2098/* If we are processing a template, we don't want to expand this
2099 initializer yet. */
2100
8d08fdba
MS
2101init:
2102 expr_no_commas %prec '='
2103 | '{' '}'
2104 { $$ = build_nt (CONSTRUCTOR, NULL_TREE, NULL_TREE);
9a0e77ba 2105 TREE_HAS_CONSTRUCTOR ($$) = 1; }
8d08fdba
MS
2106 | '{' initlist '}'
2107 { $$ = build_nt (CONSTRUCTOR, NULL_TREE, nreverse ($2));
2108 TREE_HAS_CONSTRUCTOR ($$) = 1; }
2109 | '{' initlist ',' '}'
2110 { $$ = build_nt (CONSTRUCTOR, NULL_TREE, nreverse ($2));
2111 TREE_HAS_CONSTRUCTOR ($$) = 1; }
2112 | error
2113 { $$ = NULL_TREE; }
2114 ;
2115
2116/* This chain is built in reverse order,
2117 and put in forward order where initlist is used. */
2118initlist:
2119 init
2120 { $$ = build_tree_list (NULL_TREE, $$); }
2121 | initlist ',' init
2122 { $$ = tree_cons (NULL_TREE, $3, $$); }
2123 /* These are for labeled elements. */
2124 | '[' expr_no_commas ']' init
2125 { $$ = build_tree_list ($2, $4); }
2126 | initlist ',' CASE expr_no_commas ':' init
2127 { $$ = tree_cons ($4, $6, $$); }
2128 | identifier ':' init
2129 { $$ = build_tree_list ($$, $3); }
2130 | initlist ',' identifier ':' init
2131 { $$ = tree_cons ($3, $5, $$); }
2132 ;
2133
5566b478
MS
2134fn.defpen:
2135 PRE_PARSED_FUNCTION_DECL
2136 { start_function (NULL_TREE, TREE_VALUE ($1),
2137 NULL_TREE, NULL_TREE, 1);
2138 reinit_parse_for_function (); }
2139
2140pending_inlines:
2141 /* empty */
2142 | pending_inlines fn.defpen maybe_return_init ctor_initializer_opt
2143 compstmt_or_error
2144 {
fc378698
MS
2145 int nested = (hack_decl_function_context
2146 (current_function_decl) != NULL_TREE);
2147 finish_function (lineno, (int)$4, nested);
5566b478
MS
2148 process_next_inline ($2);
2149 }
2150 | pending_inlines fn.defpen maybe_return_init function_try_block
2151 { process_next_inline ($2); }
2152 eat_saved_input
2153 ;
2154
8d08fdba
MS
2155structsp:
2156 ENUM identifier '{'
2157 { $<itype>3 = suspend_momentary ();
46b02c6d 2158 $<ttype>$ = start_enum ($2); }
8d08fdba 2159 enumlist maybecomma_warn '}'
46b02c6d
MS
2160 { $$.t = finish_enum ($<ttype>4, $5);
2161 $$.new_type_flag = 1;
8d08fdba
MS
2162 resume_momentary ((int) $<itype>3);
2163 check_for_missing_semicolon ($<ttype>4); }
2164 | ENUM identifier '{' '}'
46b02c6d
MS
2165 { $$.t = finish_enum (start_enum ($2), NULL_TREE);
2166 $$.new_type_flag = 1;
2167 check_for_missing_semicolon ($$.t); }
8d08fdba
MS
2168 | ENUM '{'
2169 { $<itype>2 = suspend_momentary ();
46b02c6d 2170 $<ttype>$ = start_enum (make_anon_name ()); }
8d08fdba 2171 enumlist maybecomma_warn '}'
46b02c6d 2172 { $$.t = finish_enum ($<ttype>3, $4);
8d08fdba 2173 resume_momentary ((int) $<itype>1);
46b02c6d
MS
2174 check_for_missing_semicolon ($<ttype>3);
2175 $$.new_type_flag = 1; }
8d08fdba 2176 | ENUM '{' '}'
46b02c6d
MS
2177 { $$.t = finish_enum (start_enum (make_anon_name()), NULL_TREE);
2178 $$.new_type_flag = 1;
2179 check_for_missing_semicolon ($$.t); }
8d08fdba 2180 | ENUM identifier
46b02c6d
MS
2181 { $$.t = xref_tag (enum_type_node, $2, NULL_TREE, 1);
2182 $$.new_type_flag = 0; }
a28e3c7f 2183 | ENUM complex_type_name
46b02c6d
MS
2184 { $$.t = xref_tag (enum_type_node, $2, NULL_TREE, 1);
2185 $$.new_type_flag = 0; }
5566b478 2186 | TYPENAME_KEYWORD nested_name_specifier identifier
46b02c6d
MS
2187 { $$.t = make_typename_type ($2, $3);
2188 $$.new_type_flag = 0; }
5566b478 2189 | TYPENAME_KEYWORD global_scope nested_name_specifier identifier
46b02c6d
MS
2190 { $$.t = make_typename_type ($3, $4);
2191 $$.new_type_flag = 0; }
8d08fdba 2192 /* C++ extensions, merged with C to avoid shift/reduce conflicts */
2ee887f2 2193 | class_head left_curly opt.component_decl_list '}' maybe_attribute
8d08fdba
MS
2194 {
2195 int semi;
2196 tree id;
2197
46b02c6d 2198 $<ttype>$ = $1;
8d08fdba
MS
2199#if 0
2200 /* Need to rework class nesting in the
2201 presence of nested classes, etc. */
5566b478 2202 shadow_tag (CLASSTYPE_AS_LIST ($1)); */
8d08fdba
MS
2203#endif
2204 if (yychar == YYEMPTY)
2205 yychar = YYLEX;
2206 semi = yychar == ';';
2207 /* finish_struct nukes this anyway; if
e92cc029 2208 finish_exception does too, then it can go. */
8d08fdba 2209 if (semi)
5566b478 2210 note_got_semicolon ($1);
8d08fdba 2211
5566b478
MS
2212 if (TREE_CODE ($1) == ENUMERAL_TYPE)
2213 ;
8d08fdba
MS
2214 else
2215 {
5566b478
MS
2216 $<ttype>$ = finish_struct ($1, $3, $5, semi);
2217 if (semi) note_got_semicolon ($<ttype>$);
8d08fdba
MS
2218 }
2219
2220 pop_obstacks ();
2221
8d08fdba 2222 if (! semi)
5566b478
MS
2223 check_for_missing_semicolon ($1);
2224 if (pending_inlines
2225 && current_scope () == current_function_decl)
2226 do_pending_inlines ();
2227 }
2228 pending_inlines
46b02c6d
MS
2229 { $$.t = $<ttype>6;
2230 $$.new_type_flag = 1; }
8d08fdba
MS
2231 | class_head %prec EMPTY
2232 {
46b02c6d
MS
2233 $$.t = $1;
2234 $$.new_type_flag = 0;
8ccc31eb 2235 /* struct B: public A; is not accepted by the WP grammar. */
46b02c6d
MS
2236 if (TYPE_BINFO_BASETYPES ($$.t) && !TYPE_SIZE ($$.t)
2237 && ! TYPE_BEING_DEFINED ($$.t))
8ccc31eb 2238 cp_error ("base clause without member specification for `%#T'",
46b02c6d 2239 $$.t);
8d08fdba
MS
2240 }
2241 ;
2242
2243maybecomma:
2244 /* empty */
2245 | ','
2246 ;
2247
2248maybecomma_warn:
2249 /* empty */
2250 | ','
594740f3
MS
2251 { if (pedantic && !in_system_header)
2252 pedwarn ("comma at end of enumerator list"); }
8d08fdba
MS
2253 ;
2254
2255aggr: AGGR
2256 | aggr SCSPEC
2257 { error ("storage class specifier `%s' not allowed after struct or class", IDENTIFIER_POINTER ($2)); }
2258 | aggr TYPESPEC
2259 { error ("type specifier `%s' not allowed after struct or class", IDENTIFIER_POINTER ($2)); }
2260 | aggr TYPE_QUAL
2261 { error ("type qualifier `%s' not allowed after struct or class", IDENTIFIER_POINTER ($2)); }
2262 | aggr AGGR
2263 { error ("no body nor ';' separates two class, struct or union declarations"); }
2264 ;
2265
2266named_class_head_sans_basetype:
2267 aggr identifier
8d08fdba 2268 { current_aggr = $$; $$ = $2; }
8ccc31eb
MS
2269 ;
2270
2271named_class_head_sans_basetype_defn:
2272 aggr identifier_defn %prec EMPTY
2273 { current_aggr = $$; $$ = $2; }
8d08fdba
MS
2274 ;
2275
07674418
MS
2276named_complex_class_head_sans_basetype:
2277 aggr nested_name_specifier identifier
fc378698
MS
2278 {
2279 current_aggr = $1;
2280 if (TREE_CODE ($3) == TYPE_DECL)
2281 $$ = $3;
2282 else
2283 {
2284 cp_error ("`%T' does not have a nested type named `%D'",
2285 $2, $3);
2286 $$ = xref_tag
2287 (current_aggr, make_anon_name (), NULL_TREE, 1);
2288 $$ = TYPE_MAIN_DECL ($$);
2289 }
2290 }
5566b478 2291 | aggr template_type
07674418 2292 { current_aggr = $$; $$ = $2; }
5566b478
MS
2293 | aggr nested_name_specifier template_type
2294 { current_aggr = $$; $$ = $3; }
07674418
MS
2295 ;
2296
51c184be 2297do_xref_defn: /* empty */ %prec EMPTY
8ccc31eb
MS
2298 { $<ttype>$ = xref_tag (current_aggr, $<ttype>0, NULL_TREE, 0); }
2299 ;
51c184be 2300
8d08fdba 2301named_class_head:
8ccc31eb
MS
2302 named_class_head_sans_basetype %prec EMPTY
2303 { $$ = xref_tag (current_aggr, $1, NULL_TREE, 1); }
2304 | named_class_head_sans_basetype_defn do_xref_defn
2305 maybe_base_class_list %prec EMPTY
2306 {
2307 $$ = $<ttype>2;
8d08fdba 2308 if ($3)
8ccc31eb 2309 xref_basetypes (current_aggr, $1, $<ttype>2, $3);
8d08fdba 2310 }
07674418
MS
2311 | named_complex_class_head_sans_basetype maybe_base_class_list
2312 {
2313 $$ = TREE_TYPE ($1);
ec255269
MS
2314 if (TREE_INT_CST_LOW (current_aggr) == union_type
2315 && TREE_CODE ($$) != UNION_TYPE)
2316 cp_pedwarn ("`union' tag used in declaring `%#T'", $$);
2317 else if (TREE_CODE ($$) == UNION_TYPE
2318 && TREE_INT_CST_LOW (current_aggr) != union_type)
2319 cp_pedwarn ("non-`union' tag used in declaring `%#T'", $$);
07674418 2320 if ($2)
ec255269
MS
2321 {
2322 if (IS_AGGR_TYPE ($$) && CLASSTYPE_USE_TEMPLATE ($$))
2323 {
2324 if (CLASSTYPE_IMPLICIT_INSTANTIATION ($$)
2325 && TYPE_SIZE ($$) == NULL_TREE)
73aad9b9
JM
2326 {
2327 SET_CLASSTYPE_TEMPLATE_SPECIALIZATION ($$);
2328 if (current_template_parms)
2329 push_template_decl (TYPE_MAIN_DECL ($$));
2330 }
ec255269
MS
2331 else if (CLASSTYPE_TEMPLATE_INSTANTIATION ($$))
2332 cp_error ("specialization after instantiation of `%T'", $$);
2333 }
2334 xref_basetypes (current_aggr, $1, $$, $2);
2335 }
07674418 2336 }
8d08fdba
MS
2337 ;
2338
2339unnamed_class_head: aggr '{'
2340 { $$ = xref_tag ($$, make_anon_name (), NULL_TREE, 0);
2341 yyungetc ('{', 1); }
2342 ;
2343
2344class_head: unnamed_class_head | named_class_head ;
2345
2346maybe_base_class_list:
2347 %prec EMPTY /* empty */
2348 { $$ = NULL_TREE; }
f30432d7 2349 | ':' see_typename %prec EMPTY
8d08fdba 2350 { yyungetc(':', 1); $$ = NULL_TREE; }
f30432d7
MS
2351 | ':' see_typename base_class_list %prec EMPTY
2352 { $$ = $3; }
8d08fdba
MS
2353 ;
2354
2355base_class_list:
2356 base_class
f30432d7
MS
2357 | base_class_list ',' see_typename base_class
2358 { $$ = chainon ($$, $4); }
8d08fdba
MS
2359 ;
2360
2361base_class:
2362 base_class.1
2363 {
45537677 2364 tree type = TREE_TYPE ($1);
be99da77 2365 if (! is_aggr_type (type, 1))
8d08fdba
MS
2366 $$ = NULL_TREE;
2367 else if (current_aggr == signature_type_node
2368 && (! type) && (! IS_SIGNATURE (type)))
2369 {
2370 error ("class name not allowed as base signature");
2371 $$ = NULL_TREE;
2372 }
2373 else if (current_aggr == signature_type_node)
2374 {
2375 sorry ("signature inheritance, base type `%s' ignored",
2376 IDENTIFIER_POINTER ($$));
45537677 2377 $$ = build_tree_list (access_public_node, type);
8d08fdba
MS
2378 }
2379 else if (type && IS_SIGNATURE (type))
2380 {
2381 error ("signature name not allowed as base class");
2382 $$ = NULL_TREE;
2383 }
2384 else
45537677 2385 $$ = build_tree_list (access_default_node, type);
8d08fdba 2386 }
f30432d7 2387 | base_class_access_list see_typename base_class.1
8d08fdba 2388 {
45537677 2389 tree type = TREE_TYPE ($3);
8d08fdba
MS
2390 if (current_aggr == signature_type_node)
2391 error ("access and source specifiers not allowed in signature");
be99da77 2392 if (! IS_AGGR_TYPE (type))
8d08fdba
MS
2393 $$ = NULL_TREE;
2394 else if (current_aggr == signature_type_node
2395 && (! type) && (! IS_SIGNATURE (type)))
2396 {
2397 error ("class name not allowed as base signature");
2398 $$ = NULL_TREE;
2399 }
2400 else if (current_aggr == signature_type_node)
2401 {
2402 sorry ("signature inheritance, base type `%s' ignored",
2403 IDENTIFIER_POINTER ($$));
45537677 2404 $$ = build_tree_list (access_public_node, type);
8d08fdba
MS
2405 }
2406 else if (type && IS_SIGNATURE (type))
2407 {
2408 error ("signature name not allowed as base class");
2409 $$ = NULL_TREE;
2410 }
2411 else
45537677 2412 $$ = build_tree_list ($$, type);
8d08fdba 2413 }
8d08fdba
MS
2414 ;
2415
8d08fdba 2416base_class.1:
a28e3c7f 2417 complete_type_name
a80e4195
MS
2418 | TYPENAME_KEYWORD nested_name_specifier identifier
2419 { $$ = TYPE_MAIN_DECL (make_typename_type ($2, $3)); }
2420 | TYPENAME_KEYWORD global_scope nested_name_specifier identifier
2421 { $$ = TYPE_MAIN_DECL (make_typename_type ($3, $4)); }
8d08fdba
MS
2422 | SIGOF '(' expr ')'
2423 {
2424 if (current_aggr == signature_type_node)
2425 {
2426 if (IS_AGGR_TYPE (TREE_TYPE ($3)))
2427 {
2428 sorry ("`sigof' as base signature specifier");
be99da77 2429 $$ = TREE_TYPE ($3);
8d08fdba
MS
2430 }
2431 else
2432 {
2433 error ("`sigof' applied to non-aggregate expression");
2434 $$ = error_mark_node;
2435 }
2436 }
2437 else
2438 {
2439 error ("`sigof' in struct or class declaration");
2440 $$ = error_mark_node;
2441 }
2442 }
51c184be 2443 | SIGOF '(' type_id ')'
8d08fdba
MS
2444 {
2445 if (current_aggr == signature_type_node)
2446 {
46b02c6d 2447 if (IS_AGGR_TYPE (groktypename ($3.t)))
8d08fdba
MS
2448 {
2449 sorry ("`sigof' as base signature specifier");
46b02c6d 2450 $$ = groktypename ($3.t);
8d08fdba
MS
2451 }
2452 else
2453 {
2454 error ("`sigof' applied to non-aggregate expression");
2455 $$ = error_mark_node;
2456 }
2457 }
2458 else
2459 {
2460 error ("`sigof' in struct or class declaration");
2461 $$ = error_mark_node;
2462 }
2463 }
2464 ;
2465
2466base_class_access_list:
f30432d7
MS
2467 VISSPEC see_typename
2468 | SCSPEC see_typename
8d08fdba
MS
2469 { if ($<ttype>$ != ridpointers[(int)RID_VIRTUAL])
2470 sorry ("non-virtual access");
be99da77 2471 $$ = access_default_virtual_node; }
f30432d7 2472 | base_class_access_list VISSPEC see_typename
8d08fdba 2473 { int err = 0;
be99da77 2474 if ($2 == access_protected_node)
8d08fdba
MS
2475 {
2476 warning ("`protected' access not implemented");
be99da77 2477 $2 = access_public_node;
8d08fdba
MS
2478 err++;
2479 }
be99da77 2480 else if ($2 == access_public_node)
8d08fdba 2481 {
be99da77 2482 if ($1 == access_private_node)
8d08fdba
MS
2483 {
2484 mixed:
2485 error ("base class cannot be public and private");
2486 }
be99da77
MS
2487 else if ($1 == access_default_virtual_node)
2488 $$ = access_public_virtual_node;
8d08fdba 2489 }
be99da77 2490 else /* $2 == access_private_node */
8d08fdba 2491 {
be99da77 2492 if ($1 == access_public_node)
8d08fdba 2493 goto mixed;
be99da77
MS
2494 else if ($1 == access_default_virtual_node)
2495 $$ = access_private_virtual_node;
8d08fdba
MS
2496 }
2497 }
f30432d7 2498 | base_class_access_list SCSPEC see_typename
8d08fdba
MS
2499 { if ($2 != ridpointers[(int)RID_VIRTUAL])
2500 sorry ("non-virtual access");
be99da77
MS
2501 if ($$ == access_public_node)
2502 $$ = access_public_virtual_node;
2503 else if ($$ == access_private_node)
2504 $$ = access_private_virtual_node; }
8d08fdba
MS
2505 ;
2506
2507left_curly: '{'
00595019 2508 { tree t = $<ttype>0;
8d08fdba
MS
2509 push_obstacks_nochange ();
2510 end_temporary_allocation ();
2511
00595019 2512 if (! IS_AGGR_TYPE (t))
8d08fdba 2513 {
00595019
MS
2514 t = $<ttype>0 = make_lang_type (RECORD_TYPE);
2515 TYPE_NAME (t) = get_identifier ("erroneous type");
8d08fdba 2516 }
00595019
MS
2517 if (TYPE_SIZE (t))
2518 duplicate_tag_error (t);
2519 if (TYPE_SIZE (t) || TYPE_BEING_DEFINED (t))
8d08fdba 2520 {
00595019 2521 t = make_lang_type (TREE_CODE (t));
8d08fdba
MS
2522 pushtag (TYPE_IDENTIFIER ($<ttype>0), t, 0);
2523 $<ttype>0 = t;
2524 }
5566b478
MS
2525 if (current_template_parms && TYPE_CONTEXT (t)
2526 && ! current_class_type)
2527 push_template_decl (TYPE_STUB_DECL (t));
00595019
MS
2528 pushclass (t, 0);
2529 TYPE_BEING_DEFINED (t) = 1;
5566b478
MS
2530 if (IS_AGGR_TYPE (t) && CLASSTYPE_USE_TEMPLATE (t))
2531 {
2532 if (CLASSTYPE_IMPLICIT_INSTANTIATION (t)
2533 && TYPE_SIZE (t) == NULL_TREE)
73aad9b9
JM
2534 {
2535 SET_CLASSTYPE_TEMPLATE_SPECIALIZATION (t);
2536 if (current_template_parms)
2537 push_template_decl (TYPE_MAIN_DECL (t));
2538 }
5566b478
MS
2539 else if (CLASSTYPE_TEMPLATE_INSTANTIATION (t))
2540 cp_error ("specialization after instantiation of `%T'", t);
2541 }
00595019
MS
2542 /* Reset the interface data, at the earliest possible
2543 moment, as it might have been set via a class foo;
2544 before. */
2545 /* Don't change signatures. */
2546 if (! IS_SIGNATURE (t))
2547 {
2548 extern tree pending_vtables;
2549 int needs_writing;
2550 tree name = TYPE_IDENTIFIER (t);
2551
db5ae43f
MS
2552 if (! ANON_AGGRNAME_P (name))
2553 {
2554 CLASSTYPE_INTERFACE_ONLY (t) = interface_only;
2555 SET_CLASSTYPE_INTERFACE_UNKNOWN_X
2556 (t, interface_unknown);
2557 }
00595019
MS
2558
2559 /* Record how to set the access of this class's
2560 virtual functions. If write_virtuals == 2 or 3, then
2561 inline virtuals are ``extern inline''. */
2562 switch (write_virtuals)
2563 {
2564 case 0:
2565 case 1:
2566 needs_writing = 1;
2567 break;
2568 case 2:
2569 needs_writing = !! value_member (name, pending_vtables);
2570 break;
2571 case 3:
2572 needs_writing = ! CLASSTYPE_INTERFACE_ONLY (t)
2573 && CLASSTYPE_INTERFACE_KNOWN (t);
2574 break;
2575 default:
2576 needs_writing = 0;
2577 }
2578 CLASSTYPE_VTABLE_NEEDS_WRITING (t) = needs_writing;
2579 }
a28e3c7f 2580#if 0
8d08fdba
MS
2581 t = TYPE_IDENTIFIER ($<ttype>0);
2582 if (t && IDENTIFIER_TEMPLATE (t))
2583 overload_template_name (t, 1);
a28e3c7f 2584#endif
8d08fdba
MS
2585 }
2586 ;
2587
c91a56d2
MS
2588self_reference:
2589 /* empty */
2590 {
2591 if (CLASSTYPE_TEMPLATE_INFO (current_class_type))
2592 $$ = NULL_TREE;
2593 else
2594 $$ = build_self_reference ();
2595 }
2596 ;
2597
8d08fdba 2598opt.component_decl_list:
c91a56d2
MS
2599 self_reference
2600 { if ($$) $$ = build_tree_list (access_public_node, $$); }
2601 | self_reference component_decl_list
8d08fdba
MS
2602 {
2603 if (current_aggr == signature_type_node)
c91a56d2 2604 $$ = build_tree_list (access_public_node, $2);
8d08fdba 2605 else
c91a56d2
MS
2606 $$ = build_tree_list (access_default_node, $2);
2607 if ($1) $$ = tree_cons (access_public_node, $1, $$);
8d08fdba
MS
2608 }
2609 | opt.component_decl_list VISSPEC ':' component_decl_list
2610 {
be99da77 2611 tree visspec = $2;
8d08fdba
MS
2612
2613 if (current_aggr == signature_type_node)
2614 {
2615 error ("access specifier not allowed in signature");
be99da77 2616 visspec = access_public_node;
8d08fdba
MS
2617 }
2618 $$ = chainon ($$, build_tree_list (visspec, $4));
2619 }
2620 | opt.component_decl_list VISSPEC ':'
2621 {
2622 if (current_aggr == signature_type_node)
2623 error ("access specifier not allowed in signature");
2624 }
2625 ;
2626
2627/* Note: we no longer warn about the semicolon after a component_decl_list.
2628 ARM $9.2 says that the semicolon is optional, and therefore allowed. */
2629component_decl_list:
2630 component_decl
2631 { if ($$ == void_type_node) $$ = NULL_TREE;
2632 }
2633 | component_decl_list component_decl
2634 { /* In pushdecl, we created a reverse list of names
2635 in this binding level. Make sure that the chain
2636 of what we're trying to add isn't the item itself
2637 (which can happen with what pushdecl's doing). */
2638 if ($2 != NULL_TREE && $2 != void_type_node)
2639 {
2640 if (TREE_CHAIN ($2) != $$)
2641 $$ = chainon ($$, $2);
2642 else
2643 $$ = $2;
2644 }
2645 }
8d08fdba
MS
2646 ;
2647
2648component_decl:
a28e3c7f 2649 component_decl_1 ';'
f30432d7 2650 { }
a28e3c7f
MS
2651 | component_decl_1 '}'
2652 { error ("missing ';' before right brace");
2653 yyungetc ('}', 0); }
2654 /* C++: handle constructors, destructors and inline functions */
2655 /* note that INLINE is like a TYPESPEC */
2656 | fn.def2 ':' /* base_init compstmt */
2657 { $$ = finish_method ($$); }
f30432d7
MS
2658 | fn.def2 TRY /* base_init compstmt */
2659 { $$ = finish_method ($$); }
2660 | fn.def2 RETURN /* base_init compstmt */
2661 { $$ = finish_method ($$); }
a28e3c7f
MS
2662 | fn.def2 '{' /* nodecls compstmt */
2663 { $$ = finish_method ($$); }
a5894242
MS
2664 | ';'
2665 { $$ = NULL_TREE; }
a28e3c7f
MS
2666 ;
2667
2668component_decl_1:
2669 /* Do not add a "typed_declspecs declarator" rule here for
51c184be
MS
2670 speed; we need to call grok_x_components for enums, so the
2671 speedup would be insignificant. */
a28e3c7f 2672 typed_declspecs components
46b02c6d 2673 { $$ = grok_x_components ($1.t, $2); }
a28e3c7f 2674 | declmods notype_components
f30432d7 2675 { $$ = grok_x_components ($1, $2); }
e3417fcd 2676 | notype_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
f30432d7
MS
2677 { $$ = grokfield ($$, NULL_TREE, $2, $5, $3,
2678 build_tree_list ($4, NULL_TREE)); }
c91a56d2
MS
2679 | constructor_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
2680 { $$ = grokfield ($$, NULL_TREE, $2, $5, $3,
2681 build_tree_list ($4, NULL_TREE)); }
a28e3c7f 2682 | ':' expr_no_commas
8d08fdba 2683 { $$ = grokbitfield (NULL_TREE, NULL_TREE, $2); }
8d08fdba
MS
2684 | error
2685 { $$ = NULL_TREE; }
2686
a28e3c7f
MS
2687 /* These rules introduce a reduce/reduce conflict; in
2688 typedef int foo, bar;
2689 class A {
2690 foo (bar);
2691 };
2692 should "A::foo" be declared as a function or "A::bar" as a data
2693 member? In other words, is "bar" an after_type_declarator or a
2694 parmlist? */
a80e4195 2695 | declmods component_constructor_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
f30432d7
MS
2696 { tree specs, attrs;
2697 split_specs_attrs ($1, &specs, &attrs);
a80e4195
MS
2698 $$ = grokfield ($2, specs, $3, $6, $4,
2699 build_tree_list ($5, attrs)); }
2700 | component_constructor_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
2701 { $$ = grokfield ($$, NULL_TREE, $2, $5, $3, $4); }
6060a796 2702 | using_decl
a9aedbc2 2703 { $$ = do_class_using_decl ($1); }
8d08fdba
MS
2704 ;
2705
e92cc029 2706/* The case of exactly one component is handled directly by component_decl. */
f30432d7 2707/* ??? Huh? ^^^ */
8d08fdba
MS
2708components:
2709 /* empty: possibly anonymous */
2710 { $$ = NULL_TREE; }
2711 | component_declarator0
2712 | components ',' component_declarator
2713 {
2714 /* In this context, void_type_node encodes
2715 friends. They have been recorded elsewhere. */
2716 if ($$ == void_type_node)
2717 $$ = $3;
2718 else
2719 $$ = chainon ($$, $3);
2720 }
2721 ;
2722
51c184be
MS
2723notype_components:
2724 /* empty: possibly anonymous */
2725 { $$ = NULL_TREE; }
2726 | notype_component_declarator0
2727 | notype_components ',' notype_component_declarator
2728 {
2729 /* In this context, void_type_node encodes
2730 friends. They have been recorded elsewhere. */
2731 if ($$ == void_type_node)
2732 $$ = $3;
2733 else
2734 $$ = chainon ($$, $3);
2735 }
2736 ;
2737
8d08fdba 2738component_declarator0:
51c184be
MS
2739 after_type_component_declarator0
2740 | notype_component_declarator0
2741 ;
2742
2743component_declarator:
2744 after_type_component_declarator
2745 | notype_component_declarator
2746 ;
2747
2748after_type_component_declarator0:
e3417fcd 2749 after_type_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
f30432d7
MS
2750 { split_specs_attrs ($<ttype>0, &current_declspecs,
2751 &prefix_attributes);
2752 $<ttype>0 = current_declspecs;
2753 $$ = grokfield ($$, current_declspecs, $2, $5, $3,
2754 build_tree_list ($4, prefix_attributes)); }
51c184be 2755 | TYPENAME ':' expr_no_commas maybe_attribute
f30432d7
MS
2756 { split_specs_attrs ($<ttype>0, &current_declspecs,
2757 &prefix_attributes);
2758 $<ttype>0 = current_declspecs;
8d08fdba 2759 $$ = grokbitfield ($$, current_declspecs, $3);
f6abb50a 2760 cplus_decl_attributes ($$, $4, prefix_attributes); }
51c184be
MS
2761 ;
2762
2763notype_component_declarator0:
e3417fcd 2764 notype_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
f30432d7
MS
2765 { split_specs_attrs ($<ttype>0, &current_declspecs,
2766 &prefix_attributes);
2767 $<ttype>0 = current_declspecs;
2768 $$ = grokfield ($$, current_declspecs, $2, $5, $3,
2769 build_tree_list ($4, prefix_attributes)); }
c91a56d2
MS
2770 | constructor_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
2771 { split_specs_attrs ($<ttype>0, &current_declspecs,
2772 &prefix_attributes);
2773 $<ttype>0 = current_declspecs;
2774 $$ = grokfield ($$, current_declspecs, $2, $5, $3,
2775 build_tree_list ($4, prefix_attributes)); }
51c184be 2776 | IDENTIFIER ':' expr_no_commas maybe_attribute
f30432d7
MS
2777 { split_specs_attrs ($<ttype>0, &current_declspecs,
2778 &prefix_attributes);
2779 $<ttype>0 = current_declspecs;
8d08fdba 2780 $$ = grokbitfield ($$, current_declspecs, $3);
f6abb50a 2781 cplus_decl_attributes ($$, $4, prefix_attributes); }
8d08fdba 2782 | ':' expr_no_commas maybe_attribute
f30432d7
MS
2783 { split_specs_attrs ($<ttype>0, &current_declspecs,
2784 &prefix_attributes);
2785 $<ttype>0 = current_declspecs;
39211cd5 2786 $$ = grokbitfield (NULL_TREE, current_declspecs, $2);
f6abb50a 2787 cplus_decl_attributes ($$, $3, prefix_attributes); }
8d08fdba
MS
2788 ;
2789
51c184be 2790after_type_component_declarator:
e3417fcd 2791 after_type_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
f30432d7
MS
2792 { $$ = grokfield ($$, current_declspecs, $2, $5, $3,
2793 build_tree_list ($4, prefix_attributes)); }
51c184be 2794 | TYPENAME ':' expr_no_commas maybe_attribute
8d08fdba 2795 { $$ = grokbitfield ($$, current_declspecs, $3);
f6abb50a 2796 cplus_decl_attributes ($$, $4, prefix_attributes); }
51c184be
MS
2797 ;
2798
2799notype_component_declarator:
e3417fcd 2800 notype_declarator exception_specification_opt maybeasm maybe_attribute maybe_init
f30432d7
MS
2801 { $$ = grokfield ($$, current_declspecs, $2, $5, $3,
2802 build_tree_list ($4, prefix_attributes)); }
51c184be 2803 | IDENTIFIER ':' expr_no_commas maybe_attribute
8d08fdba 2804 { $$ = grokbitfield ($$, current_declspecs, $3);
f6abb50a 2805 cplus_decl_attributes ($$, $4, prefix_attributes); }
8d08fdba 2806 | ':' expr_no_commas maybe_attribute
39211cd5 2807 { $$ = grokbitfield (NULL_TREE, current_declspecs, $2);
f6abb50a 2808 cplus_decl_attributes ($$, $3, prefix_attributes); }
8d08fdba
MS
2809 ;
2810
2811/* We chain the enumerators in reverse order.
2812 Because of the way enums are built, the order is
2813 insignificant. Take advantage of this fact. */
2814
2815enumlist:
2816 enumerator
2817 | enumlist ',' enumerator
2818 { TREE_CHAIN ($3) = $$; $$ = $3; }
2819 ;
2820
2821enumerator:
2822 identifier
2823 { $$ = build_enumerator ($$, NULL_TREE); }
2824 | identifier '=' expr_no_commas
2825 { $$ = build_enumerator ($$, $3); }
2826 ;
2827
51c184be
MS
2828/* ANSI new-type-id (5.3.4) */
2829new_type_id:
a4443a08 2830 type_specifier_seq new_declarator
46b02c6d
MS
2831 { $$.t = build_decl_list ($1.t, $2);
2832 $$.new_type_flag = $1.new_type_flag; }
a4443a08 2833 | type_specifier_seq %prec EMPTY
46b02c6d
MS
2834 { $$.t = build_decl_list ($1.t, NULL_TREE);
2835 $$.new_type_flag = $1.new_type_flag; }
39211cd5
MS
2836 /* GNU extension to allow arrays of arbitrary types with
2837 non-constant dimension. */
2838 | '(' type_id ')' '[' expr ']'
2839 {
b7484fbe 2840 if (pedantic)
39211cd5 2841 pedwarn ("ANSI C++ forbids array dimensions with parenthesized type in new");
46b02c6d
MS
2842 $$.t = build_parse_node (ARRAY_REF, TREE_VALUE ($2.t), $5);
2843 $$.t = build_decl_list (TREE_PURPOSE ($2.t), $$.t);
2844 $$.new_type_flag = $2.new_type_flag;
39211cd5 2845 }
8d08fdba
MS
2846 ;
2847
51c184be
MS
2848type_quals:
2849 /* empty */ %prec EMPTY
2850 { $$ = NULL_TREE; }
2851 | type_quals TYPE_QUAL
2852 { $$ = decl_tree_cons (NULL_TREE, $2, $$); }
2853 ;
2854
8d08fdba
MS
2855nonempty_type_quals:
2856 TYPE_QUAL
46b02c6d
MS
2857 { $$.t = IDENTIFIER_AS_LIST ($1);
2858 $$.new_type_flag = 0; }
8d08fdba 2859 | nonempty_type_quals TYPE_QUAL
46b02c6d
MS
2860 { $$.t = decl_tree_cons (NULL_TREE, $2, $1.t);
2861 $$.new_type_flag = $1.new_type_flag; }
8d08fdba
MS
2862 ;
2863
8d08fdba
MS
2864/* These rules must follow the rules for function declarations
2865 and component declarations. That way, longer rules are preferred. */
2866
a5894242
MS
2867suspend_mom:
2868 { $<itype>$ = suspend_momentary (); }
2869
8d08fdba
MS
2870/* An expression which will not live on the momentary obstack. */
2871nonmomentary_expr:
a5894242 2872 suspend_mom expr
8d08fdba 2873 { resume_momentary ((int) $<itype>1); $$ = $2; }
51c184be 2874 ;
8d08fdba 2875
a5894242
MS
2876/* An expression which will not live on the momentary obstack. */
2877maybe_parmlist:
2878 suspend_mom '(' nonnull_exprlist ')'
2879 { resume_momentary ((int) $<itype>1); $$ = $3; }
2880 | suspend_mom '(' parmlist ')'
2881 { resume_momentary ((int) $<itype>1); $$ = $3; }
2882 | suspend_mom LEFT_RIGHT
2883 { resume_momentary ((int) $<itype>1); $$ = empty_parms (); }
2884 | suspend_mom '(' error ')'
2885 { resume_momentary ((int) $<itype>1); $$ = NULL_TREE; }
2886 ;
2887
8d08fdba
MS
2888/* A declarator that is allowed only after an explicit typespec. */
2889/* may all be followed by prec '.' */
2890after_type_declarator:
a28e3c7f 2891 '*' nonempty_type_quals after_type_declarator %prec UNARY
46b02c6d 2892 { $$ = make_pointer_declarator ($2.t, $3); }
a28e3c7f 2893 | '&' nonempty_type_quals after_type_declarator %prec UNARY
46b02c6d 2894 { $$ = make_reference_declarator ($2.t, $3); }
a28e3c7f 2895 | '*' after_type_declarator %prec UNARY
51c184be 2896 { $$ = make_pointer_declarator (NULL_TREE, $2); }
a28e3c7f 2897 | '&' after_type_declarator %prec UNARY
51c184be 2898 { $$ = make_reference_declarator (NULL_TREE, $2); }
a28e3c7f
MS
2899 | ptr_to_mem type_quals after_type_declarator
2900 { tree arg = make_pointer_declarator ($2, $3);
2901 $$ = build_parse_node (SCOPE_REF, $1, arg);
51c184be
MS
2902 }
2903 | direct_after_type_declarator
8d08fdba
MS
2904 ;
2905
cffa8729 2906complete_type_name:
a28e3c7f 2907 type_name %prec EMPTY
8d2733ca 2908 {
cffa8729
MS
2909 if (TREE_CODE ($1) == IDENTIFIER_NODE)
2910 {
2911 if (current_class_type
2912 && TYPE_BEING_DEFINED (current_class_type)
cffa8729
MS
2913 && ! IDENTIFIER_CLASS_VALUE ($1))
2914 {
2915 /* Be sure to get an inherited typedef. */
2916 $$ = lookup_name ($1, 1);
2917 /* Remember that this name has been used in the class
2918 definition, as per [class.scope0] */
2919 pushdecl_class_level ($$);
2920 }
2921 else
2922 $$ = identifier_typedecl_value ($1);
2923 }
2924 else
2925 $$ = $1;
2926 }
2927 | global_scope type_name
2928 {
2929 if (TREE_CODE ($2) == IDENTIFIER_NODE)
a80e4195 2930 $$ = identifier_typedecl_value ($2);
cffa8729
MS
2931 else
2932 $$ = $2;
2933 got_scope = NULL_TREE;
8d2733ca 2934 }
a28e3c7f 2935 | nested_type
cffa8729
MS
2936 | global_scope nested_type
2937 { $$ = $2; }
a28e3c7f
MS
2938 ;
2939
2940nested_type:
2941 nested_name_specifier type_name %prec EMPTY
5566b478 2942 { $$ = get_type_decl ($2); }
a28e3c7f
MS
2943 ;
2944
51c184be 2945direct_after_type_declarator:
a5894242
MS
2946 direct_after_type_declarator maybe_parmlist type_quals %prec '.'
2947 { $$ = build_parse_node (CALL_EXPR, $$, $2, $3); }
51c184be 2948 | direct_after_type_declarator '[' nonmomentary_expr ']'
8d08fdba 2949 { $$ = build_parse_node (ARRAY_REF, $$, $3); }
51c184be 2950 | direct_after_type_declarator '[' ']'
8d08fdba 2951 { $$ = build_parse_node (ARRAY_REF, $$, NULL_TREE); }
a28e3c7f 2952 | '(' after_type_declarator ')'
8d08fdba 2953 { $$ = $2; }
a28e3c7f 2954 | nested_name_specifier type_name %prec EMPTY
c91a56d2 2955 { push_nested_class ($1, 3);
a28e3c7f
MS
2956 $$ = build_parse_node (SCOPE_REF, $$, $2);
2957 TREE_COMPLEXITY ($$) = current_class_depth; }
2958 | type_name %prec EMPTY
8d08fdba
MS
2959 ;
2960
2961/* A declarator allowed whether or not there has been
2962 an explicit typespec. These cannot redeclare a typedef-name. */
2963
2964notype_declarator:
a28e3c7f 2965 '*' nonempty_type_quals notype_declarator %prec UNARY
46b02c6d 2966 { $$ = make_pointer_declarator ($2.t, $3); }
a28e3c7f 2967 | '&' nonempty_type_quals notype_declarator %prec UNARY
46b02c6d 2968 { $$ = make_reference_declarator ($2.t, $3); }
a28e3c7f 2969 | '*' notype_declarator %prec UNARY
51c184be 2970 { $$ = make_pointer_declarator (NULL_TREE, $2); }
a28e3c7f 2971 | '&' notype_declarator %prec UNARY
51c184be 2972 { $$ = make_reference_declarator (NULL_TREE, $2); }
a28e3c7f
MS
2973 | ptr_to_mem type_quals notype_declarator
2974 { tree arg = make_pointer_declarator ($2, $3);
2975 $$ = build_parse_node (SCOPE_REF, $1, arg);
51c184be
MS
2976 }
2977 | direct_notype_declarator
2978 ;
2979
a28e3c7f
MS
2980complex_notype_declarator:
2981 '*' nonempty_type_quals notype_declarator %prec UNARY
46b02c6d 2982 { $$ = make_pointer_declarator ($2.t, $3); }
a28e3c7f 2983 | '&' nonempty_type_quals notype_declarator %prec UNARY
46b02c6d 2984 { $$ = make_reference_declarator ($2.t, $3); }
a28e3c7f 2985 | '*' complex_notype_declarator %prec UNARY
51c184be 2986 { $$ = make_pointer_declarator (NULL_TREE, $2); }
a28e3c7f 2987 | '&' complex_notype_declarator %prec UNARY
51c184be 2988 { $$ = make_reference_declarator (NULL_TREE, $2); }
a28e3c7f
MS
2989 | ptr_to_mem type_quals notype_declarator
2990 { tree arg = make_pointer_declarator ($2, $3);
2991 $$ = build_parse_node (SCOPE_REF, $1, arg);
51c184be
MS
2992 }
2993 | complex_direct_notype_declarator
2994 ;
2995
2996complex_direct_notype_declarator:
a5894242
MS
2997 direct_notype_declarator maybe_parmlist type_quals %prec '.'
2998 { $$ = build_parse_node (CALL_EXPR, $$, $2, $3); }
a28e3c7f 2999 | '(' complex_notype_declarator ')'
8d08fdba 3000 { $$ = $2; }
51c184be 3001 | direct_notype_declarator '[' nonmomentary_expr ']'
8d08fdba 3002 { $$ = build_parse_node (ARRAY_REF, $$, $3); }
51c184be 3003 | direct_notype_declarator '[' ']'
8d08fdba 3004 { $$ = build_parse_node (ARRAY_REF, $$, NULL_TREE); }
b7484fbe 3005 | notype_qualified_id
be99da77 3006 { if (OP0 ($$) != current_class_type)
f30432d7 3007 {
be99da77 3008 push_nested_class (OP0 ($$), 3);
f30432d7
MS
3009 TREE_COMPLEXITY ($$) = current_class_depth;
3010 }
3011 }
a28e3c7f 3012 ;
8d08fdba 3013
a28e3c7f
MS
3014qualified_id:
3015 nested_name_specifier unqualified_id
3016 { got_scope = NULL_TREE;
3017 $$ = build_parse_node (SCOPE_REF, $$, $2); }
3018 ;
51c184be 3019
a28e3c7f
MS
3020notype_qualified_id:
3021 nested_name_specifier notype_unqualified_id
3022 { got_scope = NULL_TREE;
3023 $$ = build_parse_node (SCOPE_REF, $$, $2); }
3024 ;
3025
3026overqualified_id:
3027 notype_qualified_id
3028 | global_scope notype_qualified_id
3029 { $$ = $2; }
51c184be
MS
3030 ;
3031
3032functional_cast:
3033 typespec '(' nonnull_exprlist ')'
46b02c6d 3034 { $$ = build_functional_cast ($1.t, $3); }
51c184be 3035 | typespec '(' expr_or_declarator ')'
46b02c6d 3036 { $$ = reparse_decl_as_expr ($1.t, $3); }
51c184be 3037 | typespec fcast_or_absdcl %prec EMPTY
46b02c6d 3038 { $$ = reparse_absdcl_as_expr ($1.t, $2); }
8d08fdba
MS
3039 ;
3040
a28e3c7f
MS
3041type_name:
3042 TYPENAME
a80e4195 3043 | SELFNAME
a28e3c7f
MS
3044 | template_type %prec EMPTY
3045 ;
8d08fdba 3046
a28e3c7f
MS
3047nested_name_specifier:
3048 nested_name_specifier_1
3049 | nested_name_specifier nested_name_specifier_1
3050 { $$ = $2; }
3051 ;
3052
3053/* Why the @#$%^& do type_name and notype_identifier need to be expanded
3054 inline here?!? (jason) */
3055nested_name_specifier_1:
3056 TYPENAME SCOPE
45537677 3057 {
a80e4195
MS
3058 if (TREE_CODE ($1) == IDENTIFIER_NODE)
3059 {
3060 $$ = lastiddecl;
3061 /* Remember that this name has been used in the class
3062 definition, as per [class.scope0] */
3063 if (current_class_type
3064 && TYPE_BEING_DEFINED (current_class_type)
3065 && ! IDENTIFIER_CLASS_VALUE ($1))
3066 pushdecl_class_level ($$);
3067 }
3068 got_scope = $$ = TREE_TYPE ($$);
3069 }
3070 | SELFNAME SCOPE
3071 {
3072 if (TREE_CODE ($1) == IDENTIFIER_NODE)
3073 $$ = lastiddecl;
45537677
MS
3074 got_scope = $$ = TREE_TYPE ($$);
3075 }
6060a796 3076 | NSNAME SCOPE
be99da77 3077 { got_scope = $$ = $1; }
a28e3c7f 3078 | template_type SCOPE
5566b478 3079 { got_scope = $$ = complete_type (TREE_TYPE ($1)); }
a28e3c7f 3080/* These break 'const i;'
8d08fdba 3081 | IDENTIFIER SCOPE
8d08fdba 3082 {
a28e3c7f
MS
3083 failed_scope:
3084 cp_error ("`%D' is not an aggregate typedef",
3085 lastiddecl ? lastiddecl : $$);
3086 $$ = error_mark_node;
8d08fdba 3087 }
a28e3c7f
MS
3088 | PTYPENAME SCOPE
3089 { goto failed_scope; } */
8d08fdba
MS
3090 ;
3091
a28e3c7f 3092complex_type_name:
cffa8729
MS
3093 global_scope type_name
3094 {
3095 if (TREE_CODE ($2) == IDENTIFIER_NODE)
a80e4195 3096 $$ = identifier_typedecl_value ($2);
cffa8729
MS
3097 else
3098 $$ = $2;
3099 got_scope = NULL_TREE;
3100 }
3101 | nested_type
3102 | global_scope nested_type
a28e3c7f
MS
3103 { $$ = $2; }
3104 ;
3105
3106ptr_to_mem:
3107 nested_name_specifier '*'
3108 { got_scope = NULL_TREE; }
3109 | global_scope nested_name_specifier '*'
3110 { $$ = $2; got_scope = NULL_TREE; }
3111 ;
3112
3113/* All uses of explicit global scope must go through this nonterminal so
e92cc029 3114 that got_scope will be set before yylex is called to get the next token. */
a28e3c7f
MS
3115global_scope:
3116 SCOPE
3117 { got_scope = void_type_node; }
8d08fdba
MS
3118 ;
3119
51c184be
MS
3120/* ANSI new-declarator (5.3.4) */
3121new_declarator:
3122 '*' type_quals new_declarator
8d08fdba
MS
3123 { $$ = make_pointer_declarator ($2, $3); }
3124 | '*' type_quals %prec EMPTY
3125 { $$ = make_pointer_declarator ($2, NULL_TREE); }
51c184be
MS
3126 | '&' type_quals new_declarator %prec EMPTY
3127 { $$ = make_reference_declarator ($2, $3); }
3128 | '&' type_quals %prec EMPTY
3129 { $$ = make_reference_declarator ($2, NULL_TREE); }
a28e3c7f
MS
3130 | ptr_to_mem type_quals %prec EMPTY
3131 { tree arg = make_pointer_declarator ($2, NULL_TREE);
3132 $$ = build_parse_node (SCOPE_REF, $1, arg);
51c184be 3133 }
a28e3c7f
MS
3134 | ptr_to_mem type_quals new_declarator
3135 { tree arg = make_pointer_declarator ($2, $3);
3136 $$ = build_parse_node (SCOPE_REF, $1, arg);
51c184be
MS
3137 }
3138 | direct_new_declarator %prec EMPTY
3139 ;
3140
3141/* ANSI direct-new-declarator (5.3.4) */
3142direct_new_declarator:
3143 '[' expr ']'
3144 { $$ = build_parse_node (ARRAY_REF, NULL_TREE, $2); }
3145 | direct_new_declarator '[' nonmomentary_expr ']'
3146 { $$ = build_parse_node (ARRAY_REF, $$, $3); }
3147 ;
3148
3149/* ANSI abstract-declarator (8.1) */
a28e3c7f
MS
3150absdcl:
3151 '*' nonempty_type_quals absdcl
46b02c6d 3152 { $$ = make_pointer_declarator ($2.t, $3); }
a28e3c7f 3153 | '*' absdcl
51c184be 3154 { $$ = make_pointer_declarator (NULL_TREE, $2); }
a0a33927 3155 | '*' nonempty_type_quals %prec EMPTY
46b02c6d 3156 { $$ = make_pointer_declarator ($2.t, NULL_TREE); }
a0a33927
MS
3157 | '*' %prec EMPTY
3158 { $$ = make_pointer_declarator (NULL_TREE, NULL_TREE); }
a28e3c7f 3159 | '&' nonempty_type_quals absdcl
46b02c6d 3160 { $$ = make_reference_declarator ($2.t, $3); }
a28e3c7f 3161 | '&' absdcl
51c184be 3162 { $$ = make_reference_declarator (NULL_TREE, $2); }
a0a33927 3163 | '&' nonempty_type_quals %prec EMPTY
46b02c6d 3164 { $$ = make_reference_declarator ($2.t, NULL_TREE); }
a0a33927
MS
3165 | '&' %prec EMPTY
3166 { $$ = make_reference_declarator (NULL_TREE, NULL_TREE); }
a28e3c7f
MS
3167 | ptr_to_mem type_quals %prec EMPTY
3168 { tree arg = make_pointer_declarator ($2, NULL_TREE);
3169 $$ = build_parse_node (SCOPE_REF, $1, arg);
51c184be 3170 }
a28e3c7f
MS
3171 | ptr_to_mem type_quals absdcl
3172 { tree arg = make_pointer_declarator ($2, $3);
3173 $$ = build_parse_node (SCOPE_REF, $1, arg);
51c184be
MS
3174 }
3175 | direct_abstract_declarator %prec EMPTY
3176 ;
3177
3178/* ANSI direct-abstract-declarator (8.1) */
3179direct_abstract_declarator:
a28e3c7f
MS
3180 '(' absdcl ')'
3181 { $$ = $2; }
51c184be
MS
3182 /* `(typedef)1' is `int'. */
3183 | PAREN_STAR_PAREN
51c184be 3184 | direct_abstract_declarator '(' parmlist ')' type_quals %prec '.'
8d08fdba 3185 { $$ = build_parse_node (CALL_EXPR, $$, $3, $5); }
51c184be 3186 | direct_abstract_declarator LEFT_RIGHT type_quals %prec '.'
8d08fdba 3187 { $$ = build_parse_node (CALL_EXPR, $$, empty_parms (), $3); }
51c184be 3188 | direct_abstract_declarator '[' nonmomentary_expr ']' %prec '.'
8d08fdba 3189 { $$ = build_parse_node (ARRAY_REF, $$, $3); }
51c184be 3190 | direct_abstract_declarator '[' ']' %prec '.'
8d08fdba 3191 { $$ = build_parse_node (ARRAY_REF, $$, NULL_TREE); }
51c184be 3192 | '(' complex_parmlist ')' type_quals %prec '.'
8d08fdba 3193 { $$ = build_parse_node (CALL_EXPR, NULL_TREE, $2, $4); }
51c184be
MS
3194 | regcast_or_absdcl type_quals %prec '.'
3195 { TREE_OPERAND ($$, 2) = $2; }
3196 | fcast_or_absdcl type_quals %prec '.'
3197 { TREE_OPERAND ($$, 2) = $2; }
8d08fdba
MS
3198 | '[' nonmomentary_expr ']' %prec '.'
3199 { $$ = build_parse_node (ARRAY_REF, NULL_TREE, $2); }
3200 | '[' ']' %prec '.'
3201 { $$ = build_parse_node (ARRAY_REF, NULL_TREE, NULL_TREE); }
3202 ;
3203
8d08fdba
MS
3204/* For C++, decls and stmts can be intermixed, so we don't need to
3205 have a special rule that won't start parsing the stmt section
3206 until we have a stmt that parses without errors. */
3207
3208stmts:
3209 stmt
3210 | errstmt
3211 | stmts stmt
3212 | stmts errstmt
3213 ;
3214
3215errstmt: error ';'
3216 ;
3217
3218/* build the LET_STMT node before parsing its contents,
3219 so that any LET_STMTs within the context can have their display pointers
3220 set up to point at this one. */
3221
3222.pushlevel: /* empty */
5566b478 3223 { do_pushlevel (); }
8d08fdba
MS
3224 ;
3225
863adfc0 3226.poplevel: /* empty */
5566b478 3227 { $$ = do_poplevel (); }
863adfc0
MS
3228 ;
3229
8d08fdba
MS
3230/* Read zero or more forward-declarations for labels
3231 that nested functions can jump to. */
3232maybe_label_decls:
3233 /* empty */
3234 | label_decls
b7484fbe 3235 { if (pedantic)
8d08fdba
MS
3236 pedwarn ("ANSI C++ forbids label declarations"); }
3237 ;
3238
3239label_decls:
3240 label_decl
3241 | label_decls label_decl
3242 ;
3243
3244label_decl:
3245 LABEL identifiers_or_typenames ';'
3246 { tree link;
3247 for (link = $2; link; link = TREE_CHAIN (link))
3248 {
3249 tree label = shadow_label (TREE_VALUE (link));
3250 C_DECLARED_LABEL_FLAG (label) = 1;
3251 declare_nonlocal_label (label);
3252 }
3253 }
3254 ;
3255
3256/* This is the body of a function definition.
3257 It causes syntax errors to ignore to the next openbrace. */
3258compstmt_or_error:
3259 compstmt
3260 {}
3261 | error compstmt
3262 ;
3263
5566b478
MS
3264compstmt: '{'
3265 {
3266 if (current_template_parms)
3267 {
3268 $<ttype>$ = build_min_nt (COMPOUND_STMT, NULL_TREE);
3269 add_tree ($<ttype>$);
3270 }
3271 }
3272 .pushlevel compstmtend .poplevel
3273 {
3274 if (current_template_parms)
3275 {
3276 TREE_OPERAND ($<ttype>2, 0) = TREE_CHAIN ($<ttype>2);
3277 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3278 last_tree = $<ttype>2;
3279 }
3280 $$ = $5;
3281 }
8d08fdba
MS
3282 ;
3283
3284simple_if:
3285 IF
5566b478
MS
3286 {
3287 if (current_template_parms)
3288 {
3289 $<ttype>$ = build_min_nt (IF_STMT, NULL_TREE, NULL_TREE,
3290 NULL_TREE);
3291 add_tree ($<ttype>$);
3292 }
3293 cond_stmt_keyword = "if";
3294 }
8d08fdba 3295 .pushlevel paren_cond_or_null
5566b478
MS
3296 {
3297 if (current_template_parms)
3298 {
3299 if (last_tree != $<ttype>2)
3300 {
3301 TREE_OPERAND ($<ttype>2, 0) = last_tree;
3302 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3303 last_tree = $<ttype>2;
3304 }
3305 else
3306 TREE_OPERAND ($<ttype>2, 0) = $4;
3307 }
3308 else
3309 {
3310 emit_line_note (input_filename, lineno);
3311 expand_start_cond ($4, 0);
3312 }
3313 }
8d2733ca 3314 implicitly_scoped_stmt
5566b478
MS
3315 {
3316 if (current_template_parms)
3317 {
3318 TREE_OPERAND ($<ttype>2, 1) = TREE_CHAIN ($<ttype>2);
3319 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3320 $<ttype>$ = last_tree = $<ttype>2;
3321 }
3322 }
8d08fdba
MS
3323 ;
3324
3325implicitly_scoped_stmt:
3326 compstmt
3327 { finish_stmt (); }
5566b478
MS
3328 | .pushlevel
3329 {
3330 if (current_template_parms)
3331 {
3332 $<ttype>$ = build_min_nt (COMPOUND_STMT, NULL_TREE);
3333 add_tree ($<ttype>$);
3334 }
3335 }
3336 simple_stmt .poplevel
3337 {
3338 if (current_template_parms)
3339 {
3340 TREE_OPERAND ($<ttype>2, 0) = TREE_CHAIN ($<ttype>2);
3341 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3342 last_tree = $<ttype>2;
3343 }
3344 $$ = $4;
3345 }
8d08fdba
MS
3346 ;
3347
3348stmt:
3349 compstmt
3350 { finish_stmt (); }
3351 | simple_stmt
3352 ;
3353
3354simple_stmt:
3355 decl
f30432d7 3356 { finish_stmt (); }
8d08fdba
MS
3357 | expr ';'
3358 {
8d2733ca 3359 tree expr = $1;
5566b478
MS
3360 if (! current_template_parms)
3361 {
3362 emit_line_note (input_filename, lineno);
3363 /* Do default conversion if safe and possibly important,
3364 in case within ({...}). */
3365 if ((TREE_CODE (TREE_TYPE (expr)) == ARRAY_TYPE
3366 && lvalue_p (expr))
3367 || TREE_CODE (TREE_TYPE (expr)) == FUNCTION_TYPE)
3368 expr = default_conversion (expr);
3369 }
8d08fdba
MS
3370 cplus_expand_expr_stmt (expr);
3371 clear_momentary ();
3372 finish_stmt (); }
3373 | simple_if ELSE
5566b478 3374 { if (! current_template_parms) expand_start_else (); }
8d2733ca 3375 implicitly_scoped_stmt
5566b478
MS
3376 {
3377 if (current_template_parms)
3378 {
3379 TREE_OPERAND ($<ttype>1, 2) = TREE_CHAIN ($<ttype>1);
3380 TREE_CHAIN ($<ttype>1) = NULL_TREE;
3381 last_tree = $<ttype>1;
3382 }
3383 else
3384 expand_end_cond ();
3385 }
863adfc0
MS
3386 .poplevel
3387 { finish_stmt (); }
8d08fdba 3388 | simple_if %prec IF
5566b478 3389 { if (! current_template_parms) expand_end_cond ();
8d08fdba
MS
3390 expand_end_bindings (getdecls (), kept_level_p (), 1);
3391 poplevel (kept_level_p (), 1, 0);
3392 pop_momentary ();
3393 finish_stmt (); }
3394 | WHILE
5566b478
MS
3395 {
3396 if (current_template_parms)
3397 {
3398 $<ttype>$ = build_min_nt (WHILE_STMT, NULL_TREE, NULL_TREE);
3399 add_tree ($<ttype>$);
3400 }
3401 else
3402 {
3403 emit_nop ();
3404 emit_line_note (input_filename, lineno);
3405 expand_start_loop (1);
3406 }
3407 cond_stmt_keyword = "while";
3408 }
8d08fdba 3409 .pushlevel paren_cond_or_null
5566b478
MS
3410 {
3411 if (current_template_parms)
3412 {
3413 if (last_tree != $<ttype>2)
3414 {
3415 TREE_OPERAND ($<ttype>2, 0) = last_tree;
3416 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3417 last_tree = $<ttype>2;
3418 }
3419 else
3420 TREE_OPERAND ($<ttype>2, 0) = $4;
3421 }
3422 else
3423 {
3424 emit_line_note (input_filename, lineno);
3425 expand_exit_loop_if_false (0, $4);
3426 }
3427 }
863adfc0 3428 already_scoped_stmt .poplevel
5566b478
MS
3429 {
3430 if (current_template_parms)
3431 {
3432 TREE_OPERAND ($<ttype>2, 1) = TREE_CHAIN ($<ttype>2);
3433 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3434 last_tree = $<ttype>2;
3435 }
3436 else
3437 expand_end_loop ();
3438 finish_stmt ();
3439 }
8d08fdba 3440 | DO
5566b478
MS
3441 {
3442 if (current_template_parms)
3443 {
3444 $<ttype>$ = build_min_nt (DO_STMT, NULL_TREE, NULL_TREE);
3445 add_tree ($<ttype>$);
3446 }
3447 else
3448 {
3449 emit_nop ();
3450 emit_line_note (input_filename, lineno);
3451 expand_start_loop_continue_elsewhere (1);
3452 }
3453 }
8d08fdba 3454 implicitly_scoped_stmt WHILE
5566b478
MS
3455 {
3456 if (current_template_parms)
3457 {
3458 TREE_OPERAND ($<ttype>2, 0) = TREE_CHAIN ($<ttype>2);
3459 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3460 last_tree = $<ttype>2;
3461 }
3462 else
3463 {
3464 expand_loop_continue_here ();
3465 cond_stmt_keyword = "do";
3466 }
3467 }
8d08fdba 3468 paren_expr_or_null ';'
5566b478
MS
3469 {
3470 if (current_template_parms)
3471 TREE_OPERAND ($<ttype>2, 1) = $6;
3472 else
3473 {
3474 emit_line_note (input_filename, lineno);
3475 expand_exit_loop_if_false (0, $6);
3476 expand_end_loop ();
3477 }
8d08fdba 3478 clear_momentary ();
5566b478
MS
3479 finish_stmt ();
3480 }
863adfc0 3481 | FOR
5566b478
MS
3482 { if (current_template_parms)
3483 {
3484 $<ttype>$ = build_min_nt (FOR_STMT, NULL_TREE, NULL_TREE,
3485 NULL_TREE, NULL_TREE);
3486 add_tree ($<ttype>$);
3487 }
3488 else
3489 emit_line_note (input_filename, lineno);
c7fdde6d 3490 if (flag_new_for_scope > 0)
863adfc0
MS
3491 {
3492 /* Conditionalize .pushlevel */
3493 pushlevel (0);
c7fdde6d 3494 note_level_for_for ();
863adfc0
MS
3495 clear_last_expr ();
3496 push_momentary ();
3497 expand_start_bindings (0);
3498 }
3499 }
3500 '(' for.init.statement
5566b478
MS
3501 {
3502 if (current_template_parms)
3503 {
3504 if (last_tree != $<ttype>2)
3505 {
e76a2646 3506 TREE_OPERAND ($<ttype>2, 0) = TREE_CHAIN ($<ttype>2);
5566b478
MS
3507 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3508 last_tree = $<ttype>2;
3509 }
3510 }
3511 else
3512 {
3513 emit_nop ();
3514 emit_line_note (input_filename, lineno);
3515 expand_start_loop_continue_elsewhere (1);
3516 }
3517 }
8d08fdba 3518 .pushlevel xcond ';'
5566b478
MS
3519 {
3520 if (current_template_parms)
3521 {
3522 if (last_tree != $<ttype>2)
3523 {
3524 TREE_OPERAND ($<ttype>2, 1) = last_tree;
3525 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3526 last_tree = $<ttype>2;
3527 }
3528 else
3529 TREE_OPERAND ($<ttype>2, 1) = $7;
3530 }
3531 else
3532 {
3533 emit_line_note (input_filename, lineno);
3534 if ($7) expand_exit_loop_if_false (0, $7);
3535 }
3536 }
8d08fdba 3537 xexpr ')'
863adfc0 3538 /* Don't let the tree nodes for $10 be discarded
8d08fdba 3539 by clear_momentary during the parsing of the next stmt. */
5566b478
MS
3540 {
3541 if (current_template_parms)
3542 TREE_OPERAND ($<ttype>2, 2) = $10;
3543 push_momentary ();
3544 }
863adfc0 3545 already_scoped_stmt .poplevel
5566b478
MS
3546 {
3547 if (current_template_parms)
3548 {
3549 TREE_OPERAND ($<ttype>2, 3) = TREE_CHAIN ($<ttype>2);
3550 TREE_CHAIN ($<ttype>2) = NULL_TREE;
3551 last_tree = $<ttype>2;
3552 }
3553 else
3554 {
3555 emit_line_note (input_filename, lineno);
3556 expand_loop_continue_here ();
3557 if ($10) cplus_expand_expr_stmt ($10);
3558 expand_end_loop ();
3559 }
a4443a08 3560 pop_momentary ();
c7fdde6d 3561 if (flag_new_for_scope > 0)
863adfc0
MS
3562 {
3563 expand_end_bindings (getdecls (), kept_level_p (), 1);
3564 poplevel (kept_level_p (), 1, 0);
3565 pop_momentary ();
3566 }
8d08fdba 3567 finish_stmt (); }
8d08fdba 3568 | SWITCH .pushlevel '(' condition ')'
5566b478
MS
3569 {
3570 if (current_template_parms)
3571 {
3572 $<ttype>$ = build_min_nt (SWITCH_STMT, $4, NULL_TREE);
3573 add_tree ($<ttype>$);
3574 }
3575 else
3576 {
3577 emit_line_note (input_filename, lineno);
3578 c_expand_start_case ($4);
3579 }
a5894242 3580 push_switch ();
8d08fdba
MS
3581 /* Don't let the tree nodes for $4 be discarded by
3582 clear_momentary during the parsing of the next stmt. */
5566b478
MS
3583 push_momentary ();
3584 }
8d2733ca 3585 implicitly_scoped_stmt
5566b478
MS
3586 {
3587 if (current_template_parms)
3588 {
3589 TREE_OPERAND ($<ttype>6, 1) = TREE_CHAIN ($<ttype>6);
3590 TREE_CHAIN ($<ttype>6) = NULL_TREE;
3591 last_tree = $<ttype>6;
3592 }
3593 else
3594 expand_end_case ($4);
8d08fdba 3595 pop_momentary ();
5566b478
MS
3596 pop_switch ();
3597 }
863adfc0
MS
3598 .poplevel
3599 { finish_stmt (); }
8d08fdba 3600 | CASE expr_no_commas ':'
5566b478 3601 { do_case ($2, NULL_TREE); }
8d08fdba 3602 stmt
f0e01782 3603 | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
5566b478 3604 { do_case ($2, $4); }
8d08fdba
MS
3605 stmt
3606 | DEFAULT ':'
5566b478 3607 { do_case (NULL_TREE, NULL_TREE); }
8d08fdba
MS
3608 stmt
3609 | BREAK ';'
3610 { emit_line_note (input_filename, lineno);
5566b478
MS
3611 if (current_template_parms)
3612 add_tree (build_min_nt (BREAK_STMT));
3613 else if ( ! expand_exit_something ())
8d08fdba
MS
3614 error ("break statement not within loop or switch"); }
3615 | CONTINUE ';'
3616 { emit_line_note (input_filename, lineno);
5566b478
MS
3617 if (current_template_parms)
3618 add_tree (build_min_nt (CONTINUE_STMT));
3619 else if (! expand_continue_loop (0))
8d08fdba
MS
3620 error ("continue statement not within a loop"); }
3621 | RETURN ';'
3622 { emit_line_note (input_filename, lineno);
3623 c_expand_return (NULL_TREE); }
3624 | RETURN expr ';'
3625 { emit_line_note (input_filename, lineno);
3626 c_expand_return ($2);
3627 finish_stmt ();
3628 }
3629 | asm_keyword maybe_type_qual '(' string ')' ';'
3630 { if (TREE_CHAIN ($4)) $4 = combine_strings ($4);
3631 emit_line_note (input_filename, lineno);
3632 expand_asm ($4);
3633 finish_stmt ();
3634 }
3635 /* This is the case with just output operands. */
3636 | asm_keyword maybe_type_qual '(' string ':' asm_operands ')' ';'
3637 { if (TREE_CHAIN ($4)) $4 = combine_strings ($4);
3638 emit_line_note (input_filename, lineno);
3639 c_expand_asm_operands ($4, $6, NULL_TREE, NULL_TREE,
3640 $2 == ridpointers[(int)RID_VOLATILE],
3641 input_filename, lineno);
3642 finish_stmt ();
3643 }
3644 /* This is the case with input operands as well. */
3645 | asm_keyword maybe_type_qual '(' string ':' asm_operands ':' asm_operands ')' ';'
3646 { if (TREE_CHAIN ($4)) $4 = combine_strings ($4);
3647 emit_line_note (input_filename, lineno);
3648 c_expand_asm_operands ($4, $6, $8, NULL_TREE,
3649 $2 == ridpointers[(int)RID_VOLATILE],
3650 input_filename, lineno);
3651 finish_stmt ();
3652 }
3653 /* This is the case with clobbered registers as well. */
3654 | asm_keyword maybe_type_qual '(' string ':' asm_operands ':'
8d2733ca 3655 asm_operands ':' asm_clobbers ')' ';'
8d08fdba
MS
3656 { if (TREE_CHAIN ($4)) $4 = combine_strings ($4);
3657 emit_line_note (input_filename, lineno);
3658 c_expand_asm_operands ($4, $6, $8, $10,
3659 $2 == ridpointers[(int)RID_VOLATILE],
3660 input_filename, lineno);
3661 finish_stmt ();
3662 }
3663 | GOTO '*' expr ';'
5566b478
MS
3664 {
3665 if (current_template_parms)
3666 add_tree (build_min_nt (GOTO_STMT, $3));
3667 else
3668 { emit_line_note (input_filename, lineno);
3669 expand_computed_goto ($3); }
3670 }
8d08fdba 3671 | GOTO identifier ';'
5566b478
MS
3672 {
3673 if (current_template_parms)
3674 add_tree (build_min_nt (GOTO_STMT, $2));
3675 else
3676 {
3677 tree decl;
3678 emit_line_note (input_filename, lineno);
3679 decl = lookup_label ($2);
3680 TREE_USED (decl) = 1;
3681 expand_goto (decl);
3682 }
3683 }
8d08fdba
MS
3684 | label_colon stmt
3685 { finish_stmt (); }
3686 | label_colon '}'
3687 { error ("label must be followed by statement");
3688 yyungetc ('}', 0);
3689 finish_stmt (); }
3690 | ';'
3691 { finish_stmt (); }
8d2733ca 3692 | try_block
8d08fdba
MS
3693 ;
3694
f30432d7
MS
3695function_try_block:
3696 TRY
3697 {
3698 if (! current_function_parms_stored)
3699 store_parm_decls ();
3700 expand_start_early_try_stmts ();
3701 }
3702 ctor_initializer_opt compstmt_or_error
3703 { expand_end_try_stmts ();
3704 expand_start_all_catch (); }
3705 handler_seq
3706 {
fc378698
MS
3707 int nested = (hack_decl_function_context
3708 (current_function_decl) != NULL_TREE);
f30432d7 3709 expand_end_all_catch ();
fc378698 3710 finish_function (lineno, (int)$3, nested);
f30432d7
MS
3711 }
3712 ;
3713
8d2733ca 3714try_block:
863adfc0 3715 TRY
8d2733ca 3716 { expand_start_try_stmts (); }
863adfc0 3717 compstmt
8d2733ca
MS
3718 { expand_end_try_stmts ();
3719 expand_start_all_catch (); }
3720 handler_seq
3721 { expand_end_all_catch (); }
8d08fdba
MS
3722 ;
3723
8d2733ca 3724handler_seq:
8d08fdba 3725 /* empty */
46b02c6d 3726 | handler_seq CATCH .pushlevel handler_args compstmt
863adfc0
MS
3727 { expand_end_catch_block (); }
3728 .poplevel
8d2733ca 3729 ;
8d08fdba 3730
a4443a08
MS
3731type_specifier_seq:
3732 typed_typespecs %prec EMPTY
3733 | nonempty_type_quals %prec EMPTY
3734 ;
3735
8d2733ca
MS
3736handler_args:
3737 '(' ELLIPSIS ')'
3738 { expand_start_catch_block (NULL_TREE, NULL_TREE); }
a3b49ccd 3739 /* This doesn't allow reference parameters, the below does.
a4443a08 3740 | '(' type_specifier_seq absdcl ')'
46b02c6d
MS
3741 { check_for_new_type ("inside exception declarations", $2);
3742 expand_start_catch_block ($2.t, $3); }
a4443a08 3743 | '(' type_specifier_seq ')'
46b02c6d
MS
3744 { check_for_new_type ("inside exception declarations", $2);
3745 expand_start_catch_block ($2.t, NULL_TREE); }
a4443a08 3746 | '(' type_specifier_seq notype_declarator ')'
46b02c6d
MS
3747 { check_for_new_type ("inside exception declarations", $2);
3748 expand_start_catch_block ($2.t, $3); }
a4443a08 3749 | '(' typed_typespecs after_type_declarator ')'
46b02c6d
MS
3750 { check_for_new_type ("inside exception declarations", $2);
3751 expand_start_catch_block ($2.t, $3); }
e92cc029 3752 This allows reference parameters... */
a3b49ccd 3753 | '(' parm ')'
46b02c6d
MS
3754 { check_for_new_type ("inside exception declarations", $2);
3755 expand_start_catch_block (TREE_PURPOSE ($2.t),
3756 TREE_VALUE ($2.t)); }
8d2733ca 3757 ;
8d08fdba 3758
8d2733ca
MS
3759label_colon:
3760 IDENTIFIER ':'
3761 { tree label;
3762 do_label:
3763 label = define_label (input_filename, lineno, $1);
5566b478 3764 if (label && ! minimal_parse_mode)
8d2733ca 3765 expand_label (label);
8d08fdba 3766 }
8d2733ca
MS
3767 | PTYPENAME ':'
3768 { goto do_label; }
f376e137
MS
3769 | TYPENAME ':'
3770 { goto do_label; }
a80e4195
MS
3771 | SELFNAME ':'
3772 { goto do_label; }
8d08fdba
MS
3773 ;
3774
863adfc0
MS
3775for.init.statement:
3776 xexpr ';'
3777 { if ($1) cplus_expand_expr_stmt ($1); }
3778 | decl
3779 | '{' compstmtend
72b7eeff
MS
3780 { if (pedantic)
3781 pedwarn ("ANSI C++ forbids compound statements inside for initializations");
3782 }
8d08fdba
MS
3783 ;
3784
3785/* Either a type-qualifier or nothing. First thing in an `asm' statement. */
3786
3787maybe_type_qual:
3788 /* empty */
3789 { emit_line_note (input_filename, lineno);
3790 $$ = NULL_TREE; }
3791 | TYPE_QUAL
3792 { emit_line_note (input_filename, lineno); }
3793 ;
3794
3795xexpr:
3796 /* empty */
3797 { $$ = NULL_TREE; }
3798 | expr
3799 | error
3800 { $$ = NULL_TREE; }
3801 ;
3802
3803/* These are the operands other than the first string and colon
3804 in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
3805asm_operands: /* empty */
3806 { $$ = NULL_TREE; }
3807 | nonnull_asm_operands
3808 ;
3809
3810nonnull_asm_operands:
3811 asm_operand
3812 | nonnull_asm_operands ',' asm_operand
3813 { $$ = chainon ($$, $3); }
3814 ;
3815
3816asm_operand:
3817 STRING '(' expr ')'
3818 { $$ = build_tree_list ($$, $3); }
3819 ;
3820
3821asm_clobbers:
3822 STRING
3823 { $$ = tree_cons (NULL_TREE, $$, NULL_TREE); }
3824 | asm_clobbers ',' STRING
3825 { $$ = tree_cons (NULL_TREE, $3, $$); }
3826 ;
3827
3828/* This is what appears inside the parens in a function declarator.
3829 Its value is represented in the format that grokdeclarator expects.
3830
3831 In C++, declaring a function with no parameters
3832 means that that function takes *no* parameters. */
51c184be 3833
8d08fdba
MS
3834parmlist: /* empty */
3835 {
46b02c6d 3836 $$ = empty_parms();
8d08fdba 3837 }
51c184be
MS
3838 | complex_parmlist
3839 | type_id
46b02c6d
MS
3840 { $$ = tree_cons (NULL_TREE, $1.t, void_list_node);
3841 TREE_PARMLIST ($$) = 1;
3842 check_for_new_type ("inside parameter list", $1); }
51c184be
MS
3843 ;
3844
3845/* This nonterminal does not include the common sequence '(' type_id ')',
3846 as it is ambiguous and must be disambiguated elsewhere. */
3847complex_parmlist:
3848 parms
8d2733ca 3849 {
8d08fdba
MS
3850 $$ = chainon ($$, void_list_node);
3851 TREE_PARMLIST ($$) = 1;
3852 }
51c184be 3853 | parms_comma ELLIPSIS
8d08fdba
MS
3854 {
3855 TREE_PARMLIST ($$) = 1;
3856 }
3857 /* C++ allows an ellipsis without a separating ',' */
3858 | parms ELLIPSIS
3859 {
3860 TREE_PARMLIST ($$) = 1;
3861 }
51c184be
MS
3862 | type_id ELLIPSIS
3863 {
46b02c6d 3864 $$ = build_tree_list (NULL_TREE, $1.t);
51c184be
MS
3865 TREE_PARMLIST ($$) = 1;
3866 }
8d08fdba
MS
3867 | ELLIPSIS
3868 {
8d08fdba
MS
3869 $$ = NULL_TREE;
3870 }
3871 | TYPENAME_ELLIPSIS
3872 {
3873 TREE_PARMLIST ($$) = 1;
3874 }
3875 | parms TYPENAME_ELLIPSIS
3876 {
3877 TREE_PARMLIST ($$) = 1;
3878 }
51c184be
MS
3879 | type_id TYPENAME_ELLIPSIS
3880 {
46b02c6d 3881 $$ = build_tree_list (NULL_TREE, $1.t);
51c184be
MS
3882 TREE_PARMLIST ($$) = 1;
3883 }
8d08fdba
MS
3884 | parms ':'
3885 {
3886 /* This helps us recover from really nasty
3887 parse errors, for example, a missing right
3888 parenthesis. */
3889 yyerror ("possibly missing ')'");
3890 $$ = chainon ($$, void_list_node);
3891 TREE_PARMLIST ($$) = 1;
3892 yyungetc (':', 0);
3893 yychar = ')';
3894 }
51c184be
MS
3895 | type_id ':'
3896 {
3897 /* This helps us recover from really nasty
3898 parse errors, for example, a missing right
3899 parenthesis. */
3900 yyerror ("possibly missing ')'");
46b02c6d 3901 $$ = tree_cons (NULL_TREE, $1.t, void_list_node);
51c184be
MS
3902 TREE_PARMLIST ($$) = 1;
3903 yyungetc (':', 0);
3904 yychar = ')';
3905 }
8d08fdba
MS
3906 ;
3907
3908/* A nonempty list of parameter declarations or type names. */
3909parms:
51c184be 3910 named_parm
46b02c6d
MS
3911 { check_for_new_type ("in a parameter list", $1);
3912 $$ = build_tree_list (NULL_TREE, $1.t); }
8d08fdba 3913 | parm '=' init
46b02c6d
MS
3914 { check_for_new_type ("in a parameter list", $1);
3915 $$ = build_tree_list ($3, $1.t); }
a292b002 3916 | parms_comma full_parm
46b02c6d
MS
3917 { check_for_new_type ("in a parameter list", $2);
3918 $$ = chainon ($$, $2.t); }
51c184be
MS
3919 | parms_comma bad_parm
3920 { $$ = chainon ($$, build_tree_list (NULL_TREE, $2)); }
3921 | parms_comma bad_parm '=' init
3922 { $$ = chainon ($$, build_tree_list ($4, $2)); }
3923 ;
3924
3925parms_comma:
3926 parms ','
3927 | type_id ','
46b02c6d
MS
3928 { check_for_new_type ("in a parameter list", $1);
3929 $$ = build_tree_list (NULL_TREE, $1.t); }
8d08fdba
MS
3930 ;
3931
3932/* A single parameter declaration or parameter type name,
3933 as found in a parmlist. The first four cases make up for 10%
3934 of the time spent parsing C++. We cannot use them because
3935 of `int id[]' which won't get parsed properly. */
51c184be 3936named_parm:
8d08fdba
MS
3937/*
3938 typed_declspecs dont_see_typename '*' IDENTIFIER
46b02c6d
MS
3939 { tree specs = strip_attrs ($1.t);
3940 $$.t = build_tree_list (specs, build_parse_node (INDIRECT_REF, $4));
3941 $$.new_type_flag = $1.new_type_flag;
8d08fdba
MS
3942 see_typename (); }
3943 | typed_declspecs dont_see_typename '&' IDENTIFIER
46b02c6d
MS
3944 { tree specs = strip_attrs ($1.t);
3945 $$.t = build_tree_list (specs, build_parse_node (ADDR_EXPR, $4));
3946 $$.new_type_flag = $1.new_type_flag;
8d08fdba
MS
3947 see_typename (); }
3948 | TYPENAME IDENTIFIER
46b02c6d
MS
3949 { $$.t = build_tree_list (get_decl_list ($$), $2);
3950 $$.new_type_flag = 0; }
8d08fdba 3951 | TYPESPEC IDENTIFIER
46b02c6d
MS
3952 { $$.t = build_tree_list (get_decl_list ($$), $2);
3953 $$.new_type_flag = 0; }
8d08fdba 3954 | */
51c184be
MS
3955 /* Here we expand typed_declspecs inline to avoid mis-parsing of
3956 TYPESPEC IDENTIFIER. */
3957 typed_declspecs1 declarator
46b02c6d
MS
3958 { tree specs = strip_attrs ($1.t);
3959 $$.new_type_flag = $1.new_type_flag;
3960 $$.t = build_tree_list (specs, $2); }
51c184be 3961 | typed_typespecs declarator
46b02c6d
MS
3962 { $$.t = build_tree_list ($1.t, $2);
3963 $$.new_type_flag = $1.new_type_flag; }
51c184be 3964 | typespec declarator
46b02c6d
MS
3965 { $$.t = build_tree_list (get_decl_list ($1.t), $2);
3966 $$.new_type_flag = $1.new_type_flag; }
51c184be 3967 | typed_declspecs1 absdcl
46b02c6d
MS
3968 { tree specs = strip_attrs ($1.t);
3969 $$.t = build_tree_list (specs, $2);
3970 $$.new_type_flag = $1.new_type_flag; }
51c184be 3971 | typed_declspecs1 %prec EMPTY
46b02c6d
MS
3972 { tree specs = strip_attrs ($1.t);
3973 $$.t = build_tree_list (specs, NULL_TREE);
3974 $$.new_type_flag = $1.new_type_flag; }
51c184be 3975 | declmods notype_declarator
f30432d7 3976 { tree specs = strip_attrs ($1);
46b02c6d
MS
3977 $$.t = build_tree_list (specs, $2);
3978 $$.new_type_flag = 0; }
8d08fdba
MS
3979 ;
3980
a292b002 3981full_parm:
e3417fcd 3982 parm maybe_init
46b02c6d
MS
3983 { $$.t = build_tree_list ($2, $1.t);
3984 $$.new_type_flag = $1.new_type_flag; }
a292b002
MS
3985 ;
3986
51c184be
MS
3987parm:
3988 named_parm
3989 | type_id
8d08fdba
MS
3990 ;
3991
51c184be 3992see_typename: %prec EMPTY
8d08fdba
MS
3993 { see_typename (); }
3994 ;
3995
51c184be
MS
3996/*
3997dont_see_typename: %prec EMPTY
8d08fdba 3998 { dont_see_typename (); }
51c184be 3999 ;
8d08fdba 4000
8d08fdba
MS
4001try_for_typename:
4002 {
4003 if ($<ttype>-1 == error_mark_node)
4004 $$ = 0;
4005 else
4006 {
4007 $$ = 1;
4008 pushclass ($<ttype>-1, 1);
4009 }
4010 }
4011 ;
4012*/
4013
4014bad_parm:
51c184be
MS
4015 /* empty */ %prec EMPTY
4016 {
6060a796
MS
4017 error ("type specifier omitted for parameter");
4018 $$ = build_tree_list (integer_type_node, NULL_TREE);
51c184be
MS
4019 }
4020 | notype_declarator
8d08fdba 4021 {
6060a796 4022 error ("type specifier omitted for parameter");
fc378698
MS
4023 if (TREE_CODE ($$) == SCOPE_REF
4024 && TREE_CODE (TREE_OPERAND ($$, 0)) == TEMPLATE_TYPE_PARM)
4025 cp_error (" perhaps you want `typename %E' to make it a type", $$);
6060a796 4026 $$ = build_tree_list (integer_type_node, $$);
8d08fdba
MS
4027 }
4028 ;
4029
e3417fcd 4030exception_specification_opt:
8d08fdba
MS
4031 %prec EMPTY /* empty */
4032 { $$ = NULL_TREE; }
8d2733ca 4033 | THROW '(' ansi_raise_identifiers ')' %prec EMPTY
8d08fdba 4034 { $$ = $3; }
6060a796
MS
4035 | THROW LEFT_RIGHT %prec EMPTY
4036 { $$ = build_decl_list (NULL_TREE, NULL_TREE); }
8d08fdba
MS
4037 ;
4038
8d08fdba 4039ansi_raise_identifier:
51c184be 4040 type_id
46b02c6d 4041 { $$ = build_decl_list (NULL_TREE, groktypename($1.t)); }
8d08fdba
MS
4042 ;
4043
8d08fdba
MS
4044ansi_raise_identifiers:
4045 ansi_raise_identifier
4046 | ansi_raise_identifiers ',' ansi_raise_identifier
4047 {
8d2733ca 4048 TREE_CHAIN ($3) = $$;
8d08fdba
MS
4049 $$ = $3;
4050 }
4051 ;
4052
51c184be
MS
4053conversion_declarator:
4054 /* empty */ %prec EMPTY
4055 { $$ = NULL_TREE; }
4056 | '*' type_quals conversion_declarator
4057 { $$ = make_pointer_declarator ($2, $3); }
4058 | '&' type_quals conversion_declarator
4059 { $$ = make_reference_declarator ($2, $3); }
a28e3c7f
MS
4060 | ptr_to_mem type_quals conversion_declarator
4061 { tree arg = make_pointer_declarator ($2, $3);
4062 $$ = build_parse_node (SCOPE_REF, $1, arg);
51c184be
MS
4063 }
4064 ;
4065
a28e3c7f
MS
4066operator: OPERATOR
4067 { got_scope = NULL_TREE; }
4068 ;
4069
8d08fdba 4070operator_name:
a28e3c7f 4071 operator '*'
8d08fdba 4072 { $$ = ansi_opname[MULT_EXPR]; }
a28e3c7f 4073 | operator '/'
8d08fdba 4074 { $$ = ansi_opname[TRUNC_DIV_EXPR]; }
a28e3c7f 4075 | operator '%'
8d08fdba 4076 { $$ = ansi_opname[TRUNC_MOD_EXPR]; }
a28e3c7f 4077 | operator '+'
8d08fdba 4078 { $$ = ansi_opname[PLUS_EXPR]; }
a28e3c7f 4079 | operator '-'
8d08fdba 4080 { $$ = ansi_opname[MINUS_EXPR]; }
a28e3c7f 4081 | operator '&'
8d08fdba 4082 { $$ = ansi_opname[BIT_AND_EXPR]; }
a28e3c7f 4083 | operator '|'
8d08fdba 4084 { $$ = ansi_opname[BIT_IOR_EXPR]; }
a28e3c7f 4085 | operator '^'
8d08fdba 4086 { $$ = ansi_opname[BIT_XOR_EXPR]; }
a28e3c7f 4087 | operator '~'
8d08fdba 4088 { $$ = ansi_opname[BIT_NOT_EXPR]; }
a28e3c7f 4089 | operator ','
8d08fdba 4090 { $$ = ansi_opname[COMPOUND_EXPR]; }
a28e3c7f 4091 | operator ARITHCOMPARE
8d08fdba 4092 { $$ = ansi_opname[$2]; }
a28e3c7f 4093 | operator '<'
8d08fdba 4094 { $$ = ansi_opname[LT_EXPR]; }
a28e3c7f 4095 | operator '>'
8d08fdba 4096 { $$ = ansi_opname[GT_EXPR]; }
a28e3c7f 4097 | operator EQCOMPARE
8d08fdba 4098 { $$ = ansi_opname[$2]; }
a28e3c7f 4099 | operator ASSIGN
8d08fdba 4100 { $$ = ansi_assopname[$2]; }
a28e3c7f 4101 | operator '='
8d08fdba 4102 { $$ = ansi_opname [MODIFY_EXPR]; }
a28e3c7f 4103 | operator LSHIFT
8d08fdba 4104 { $$ = ansi_opname[$2]; }
a28e3c7f 4105 | operator RSHIFT
8d08fdba 4106 { $$ = ansi_opname[$2]; }
a28e3c7f 4107 | operator PLUSPLUS
8d08fdba 4108 { $$ = ansi_opname[POSTINCREMENT_EXPR]; }
a28e3c7f 4109 | operator MINUSMINUS
8d08fdba 4110 { $$ = ansi_opname[PREDECREMENT_EXPR]; }
a28e3c7f 4111 | operator ANDAND
8d08fdba 4112 { $$ = ansi_opname[TRUTH_ANDIF_EXPR]; }
a28e3c7f 4113 | operator OROR
8d08fdba 4114 { $$ = ansi_opname[TRUTH_ORIF_EXPR]; }
a28e3c7f 4115 | operator '!'
8d08fdba 4116 { $$ = ansi_opname[TRUTH_NOT_EXPR]; }
a28e3c7f 4117 | operator '?' ':'
8d08fdba 4118 { $$ = ansi_opname[COND_EXPR]; }
a28e3c7f 4119 | operator MIN_MAX
8d08fdba 4120 { $$ = ansi_opname[$2]; }
a28e3c7f 4121 | operator POINTSAT %prec EMPTY
8d08fdba 4122 { $$ = ansi_opname[COMPONENT_REF]; }
a28e3c7f 4123 | operator POINTSAT_STAR %prec EMPTY
8d08fdba 4124 { $$ = ansi_opname[MEMBER_REF]; }
a28e3c7f 4125 | operator LEFT_RIGHT
8d08fdba 4126 { $$ = ansi_opname[CALL_EXPR]; }
a28e3c7f 4127 | operator '[' ']'
8d08fdba 4128 { $$ = ansi_opname[ARRAY_REF]; }
a28e3c7f 4129 | operator NEW %prec EMPTY
8d08fdba 4130 { $$ = ansi_opname[NEW_EXPR]; }
a28e3c7f 4131 | operator DELETE %prec EMPTY
8d08fdba 4132 { $$ = ansi_opname[DELETE_EXPR]; }
a28e3c7f 4133 | operator NEW '[' ']'
51c184be 4134 { $$ = ansi_opname[VEC_NEW_EXPR]; }
a28e3c7f
MS
4135 | operator DELETE '[' ']'
4136 { $$ = ansi_opname[VEC_DELETE_EXPR]; }
700f8a87 4137 /* Names here should be looked up in class scope ALSO. */
a4443a08 4138 | operator type_specifier_seq conversion_declarator
46b02c6d 4139 { $$ = grokoptypename ($2.t, $3); }
a28e3c7f 4140 | operator error
8d08fdba
MS
4141 { $$ = ansi_opname[ERROR_MARK]; }
4142 ;
4143
4144%%
00595019
MS
4145
4146#ifdef SPEW_DEBUG
4147const char *
4148debug_yytranslate (value)
4149 int value;
4150{
4151 return yytname[YYTRANSLATE (value)];
4152}
4153
4154#endif
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