parse.c

gcc-2.95.3 Linux下最常用的C编译器

/*  A Bison parser, made from parse.y
 by  GNU Bison version 1.25
  */

#define YYBISON 1  /* Identify Bison output.  */

#define	IDENTIFIER	258
#define	TYPENAME	259
#define	SELFNAME	260
#define	PFUNCNAME	261
#define	SCSPEC	262
#define	TYPESPEC	263
#define	CV_QUALIFIER	264
#define	CONSTANT	265
#define	STRING	266
#define	ELLIPSIS	267
#define	SIZEOF	268
#define	ENUM	269
#define	IF	270
#define	ELSE	271
#define	WHILE	272
#define	DO	273
#define	FOR	274
#define	SWITCH	275
#define	CASE	276
#define	DEFAULT	277
#define	BREAK	278
#define	CONTINUE	279
#define	RETURN_KEYWORD	280
#define	GOTO	281
#define	ASM_KEYWORD	282
#define	TYPEOF	283
#define	ALIGNOF	284
#define	SIGOF	285
#define	ATTRIBUTE	286
#define	EXTENSION	287
#define	LABEL	288
#define	REALPART	289
#define	IMAGPART	290
#define	AGGR	291
#define	VISSPEC	292
#define	DELETE	293
#define	NEW	294
#define	THIS	295
#define	OPERATOR	296
#define	CXX_TRUE	297
#define	CXX_FALSE	298
#define	NAMESPACE	299
#define	TYPENAME_KEYWORD	300
#define	USING	301
#define	LEFT_RIGHT	302
#define	TEMPLATE	303
#define	TYPEID	304
#define	DYNAMIC_CAST	305
#define	STATIC_CAST	306
#define	REINTERPRET_CAST	307
#define	CONST_CAST	308
#define	SCOPE	309
#define	EMPTY	310
#define	PTYPENAME	311
#define	NSNAME	312
#define	THROW	313
#define	ASSIGN	314
#define	OROR	315
#define	ANDAND	316
#define	MIN_MAX	317
#define	EQCOMPARE	318
#define	ARITHCOMPARE	319
#define	LSHIFT	320
#define	RSHIFT	321
#define	POINTSAT_STAR	322
#define	DOT_STAR	323
#define	UNARY	324
#define	PLUSPLUS	325
#define	MINUSMINUS	326
#define	HYPERUNARY	327
#define	PAREN_STAR_PAREN	328
#define	POINTSAT	329
#define	TRY	330
#define	CATCH	331
#define	PRE_PARSED_FUNCTION_DECL	332
#define	EXTERN_LANG_STRING	333
#define	ALL	334
#define	PRE_PARSED_CLASS_DECL	335
#define	DEFARG	336
#define	DEFARG_MARKER	337
#define	TYPENAME_DEFN	338
#define	IDENTIFIER_DEFN	339
#define	PTYPENAME_DEFN	340
#define	END_OF_LINE	341
#define	END_OF_SAVED_INPUT	342

#line 29 "parse.y"

/* Cause the `yydebug' variable to be defined.  */
#define YYDEBUG 1

#include "config.h"

#include "system.h"

#include "tree.h"
#include "input.h"
#include "flags.h"
#include "lex.h"
#include "cp-tree.h"
#include "output.h"
#include "except.h"
#include "toplev.h"

/* Since parsers are distinct for each language, put the language string
   definition here.  (fnf) */
char *language_string = "GNU C++";

extern tree void_list_node;
extern struct obstack permanent_obstack;

extern int end_of_file;

/* Like YYERROR but do call yyerror.  */
#define YYERROR1 { yyerror ("syntax error"); YYERROR; }

#define OP0(NODE) (TREE_OPERAND (NODE, 0))
#define OP1(NODE) (TREE_OPERAND (NODE, 1))

/* Contains the statement keyword (if/while/do) to include in an
   error message if the user supplies an empty conditional expression.  */
static const char *cond_stmt_keyword;

static tree empty_parms PROTO((void));
static int parse_decl PROTO((tree, tree, tree, int, tree *));

/* Nonzero if we have an `extern "C"' acting as an extern specifier.  */
int have_extern_spec;
int used_extern_spec;

/* Cons up an empty parameter list.  */
#ifdef __GNUC__
__inline
#endif
static tree
empty_parms ()
{
  tree parms;

  if (strict_prototype
      || current_class_type != NULL)
    parms = void_list_node;
  else
    parms = NULL_TREE;
  return parms;
}


#line 93 "parse.y"
typedef union {long itype; tree ttype; char *strtype; enum tree_code code; flagged_type_tree ftype; } YYSTYPE;
#line 287 "parse.y"

/* List of types and structure classes of the current declaration.  */
static tree current_declspecs;

/* List of prefix attributes in effect.
   Prefix attributes are parsed by the reserved_declspecs and declmods
   rules.  They create a list that contains *both* declspecs and attrs.  */
/* ??? It is not clear yet that all cases where an attribute can now appear in
   a declspec list have been updated.  */
static tree prefix_attributes;

/* When defining an aggregate, this is the kind of the most recent one
   being defined.  (For example, this might be class_type_node.)  */
static tree current_aggr;

/* When defining an enumeration, this is the type of the enumeration.  */
static tree current_enum_type;

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

#define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
extern void yyprint			PROTO((FILE *, int, YYSTYPE));
extern tree combine_strings		PROTO((tree));

static int
parse_decl(declarator, specs_attrs, attributes, initialized, decl)
  tree declarator;
  tree specs_attrs;
  tree attributes;
  int initialized;
  tree* decl;
{
  int  sm;

  split_specs_attrs (specs_attrs, &current_declspecs, &prefix_attributes);
  if (current_declspecs
      && TREE_CODE (current_declspecs) != TREE_LIST)
    current_declspecs = build_decl_list (NULL_TREE, current_declspecs);
  if (have_extern_spec && !used_extern_spec)
    {
      current_declspecs = decl_tree_cons (NULL_TREE, 
					  get_identifier ("extern"), 
					  current_declspecs);
      used_extern_spec = 1;
    }
  sm = suspend_momentary ();
  *decl = start_decl (declarator, current_declspecs, initialized,
		      attributes, prefix_attributes);
  return sm;
}
#include <stdio.h>

#ifndef __cplusplus
#ifndef __STDC__
#define const
#endif
#endif