parse.c

GCC编译器源代码

/*  A Bison parser, made from parse.y
 by  Bison version A2.5 (Andrew Consortium)
  */

#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	280
#define	GOTO	281
#define	ASM_KEYWORD	282
#define	GCC_ASM_KEYWORD	283
#define	TYPEOF	284
#define	ALIGNOF	285
#define	SIGOF	286
#define	ATTRIBUTE	287
#define	EXTENSION	288
#define	LABEL	289
#define	REALPART	290
#define	IMAGPART	291
#define	AGGR	292
#define	VISSPEC	293
#define	DELETE	294
#define	NEW	295
#define	THIS	296
#define	OPERATOR	297
#define	CXX_TRUE	298
#define	CXX_FALSE	299
#define	NAMESPACE	300
#define	TYPENAME_KEYWORD	301
#define	USING	302
#define	LEFT_RIGHT	303
#define	TEMPLATE	304
#define	TYPEID	305
#define	DYNAMIC_CAST	306
#define	STATIC_CAST	307
#define	REINTERPRET_CAST	308
#define	CONST_CAST	309
#define	SCOPE	310
#define	EMPTY	311
#define	PTYPENAME	312
#define	NSNAME	313
#define	THROW	314
#define	ASSIGN	315
#define	OROR	316
#define	ANDAND	317
#define	MIN_MAX	318
#define	EQCOMPARE	319
#define	ARITHCOMPARE	320
#define	LSHIFT	321
#define	RSHIFT	322
#define	POINTSAT_STAR	323
#define	DOT_STAR	324
#define	UNARY	325
#define	PLUSPLUS	326
#define	MINUSMINUS	327
#define	HYPERUNARY	328
#define	PAREN_STAR_PAREN	329
#define	POINTSAT	330
#define	TRY	331
#define	CATCH	332
#define	TYPENAME_ELLIPSIS	333
#define	PRE_PARSED_FUNCTION_DECL	334
#define	EXTERN_LANG_STRING	335
#define	ALL	336
#define	PRE_PARSED_CLASS_DECL	337
#define	DEFARG	338
#define	DEFARG_MARKER	339
#define	TYPENAME_DEFN	340
#define	IDENTIFIER_DEFN	341
#define	PTYPENAME_DEFN	342
#define	END_OF_LINE	343
#define	END_OF_SAVED_INPUT	344

#line 29 "parse.y"

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

#include "config.h"

#include <stdio.h>
#include <errno.h>

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

#ifndef errno
extern int errno;
#endif

extern int end_of_file;
extern int current_class_depth;
extern tree last_tree;

/* FSF LOCAL dje prefix attributes */
extern tree strip_attrs		PROTO((tree));
/* END FSF LOCAL */

/* 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 char *cond_stmt_keyword;

static tree empty_parms PROTO((void));

/* 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 101 "parse.y"
typedef union {long itype; tree ttype; char *strtype; enum tree_code code; flagged_type_tree ftype; } YYSTYPE;
#line 289 "parse.y"

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

/* When defining an aggregate, this is the most recent one being defined.  */
static tree current_aggr;

/* 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));
#include <stdio.h>

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



#define	YYFINAL		1529
#define	YYFLAG		-32768
#define	YYNTBASE	114

#define YYTRANSLATE(x) ((unsigned)(x) <= 344 ? yytranslate[x] : 376)

static const char yytranslate[] = {     0,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,   112,     2,     2,     2,    83,    71,     2,    94,
   110,    81,    79,    60,    80,    93,    82,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,    63,    61,    75,
    65,    76,    66,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
    95,     2,   113,    70,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
     2,     2,     2,     2,     2,     2,     2,     2,     2,     2,