# define YYERROR_VERBOSE ]b4_error_verbose[
#endif
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE ]b4_token_table[
+#endif
+
#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
]m4_ifdef([b4_stype],
[b4_syncline([b4_stype_line], [b4_filename])
#ifndef __attribute__
/* This feature is available in gcc versions 2.5 and later. */
-# if !defined (__GNUC__) || __GNUC__ < 2 || \
-(__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
+# if (!defined (__GNUC__) || __GNUC__ < 2 \
+ || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
# define __attribute__(Spec) /* empty */
-# else
-]b4_location_if([# define YYOPTIONAL_LOC(Name) Name],[
-# if defined (__cplusplus)
-# define YYOPTIONAL_LOC(Name) /* empty */
-# else
-# define YYOPTIONAL_LOC(Name) Name ATTRIBUTE_UNUSED
-# endif])[
# endif
#endif
+]b4_location_if([#define YYOPTIONAL_LOC(Name) Name],[
+#ifdef __cplusplus
+# define YYOPTIONAL_LOC(Name) /* empty */
+#else
+# define YYOPTIONAL_LOC(Name) Name __attribute__ ((__unused__))
+#endif])[
+
#ifndef YYASSERT
# define YYASSERT(condition) ((void) ((condition) || (abort (), 0)))
#endif
-#ifndef ATTRIBUTE_UNUSED
-# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
-#endif
-
/* YYFINAL -- State number of the termination state. */
#define YYFINAL ]b4_final_state_number[
/* YYLAST -- Last index in YYTABLE. */
};
#endif
-#if (YYDEBUG) || YYERROR_VERBOSE
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
static void yyexpandGLRStack (yyGLRStack* yystack);
+static void yyFail (yyGLRStack* yystack]b4_pure_formals[, const char* yymsg)
+ __attribute__ ((__noreturn__));
static void
yyFail (yyGLRStack* yystack]b4_pure_formals[, const char* yymsg)
{
longjmp (yystack->yyexception_buffer, 1);
}
+static void yyMemoryExhausted (yyGLRStack* yystack)
+ __attribute__ ((__noreturn__));
static void
yyMemoryExhausted (yyGLRStack* yystack)
{
* at YYVSP[YYLOW0].yystate.yypred. Leaves YYVSP[YYLOW1].yystate.yypred
* containing the pointer to the next state in the chain. Assumes
* YYLOW1 < YYLOW0. */
-static void yyfillin (yyGLRStackItem *, int, int) ATTRIBUTE_UNUSED;
+static void yyfillin (yyGLRStackItem *, int, int) __attribute__ ((__unused__));
static void
yyfillin (yyGLRStackItem *yyvsp, int yylow0, int yylow1)
{
YYVSP[YYLOW1 .. *YYLOW-1] as in yyfillin and set *YYLOW = YYLOW1.
For convenience, always return YYLOW1. */
static inline int yyfill (yyGLRStackItem *, int *, int, yybool)
- ATTRIBUTE_UNUSED;
+ __attribute__ ((__unused__));
static inline int
yyfill (yyGLRStackItem *yyvsp, int *yylow, int yylow1, yybool yynormal)
{
yyGLRStack* yystack
]b4_user_formals[)
{
- yybool yynormal ATTRIBUTE_UNUSED = (yystack->yysplitPoint == NULL);
+ yybool yynormal __attribute__ ((__unused__)) =
+ (yystack->yysplitPoint == NULL);
int yylow;
# undef yyerrok
yystack->yyerrState = 0;
yynerrs = 0;
yystack->yyspaceLeft = yysize;
- yystack->yynextFree = yystack->yyitems =
+ yystack->yyitems =
(yyGLRStackItem*) YYMALLOC (yysize * sizeof yystack->yynextFree[0]);
+ if (!yystack->yyitems)
+ return yyfalse;
+ yystack->yynextFree = yystack->yyitems;
yystack->yysplitPoint = NULL;
yystack->yylastDeleted = NULL;
- return yyinitStateSet (&yystack->yytops) && yystack->yyitems;
+ return yyinitStateSet (&yystack->yytops);
}
#define YYRELOC(YYFROMITEMS,YYTOITEMS,YYX,YYTYPE) \
}
#endif
+static void yyreportAmbiguity (yySemanticOption* yyx0, yySemanticOption* yyx1,
+ yyGLRStack* yystack]b4_pure_formals[)
+ __attribute__ ((__noreturn__));
static void
yyreportAmbiguity (yySemanticOption* yyx0, yySemanticOption* yyx1,
yyGLRStack* yystack]b4_pure_formals[)
YYSTYPE* yyvalp, YYLTYPE* yylocp]b4_user_formals[)
{
yySemanticOption* yybest;
- yySemanticOption* yyp;
+ yySemanticOption** yypp;
yybool yymerge;
yybest = yyoptionList;
yymerge = yyfalse;
- for (yyp = yyoptionList->yynext; yyp != NULL; yyp = yyp->yynext)
+ for (yypp = &yyoptionList->yynext; *yypp != NULL; )
{
+ yySemanticOption* yyp = *yypp;
+
if (yyidenticalOptions (yybest, yyp))
- yymergeOptionSets (yybest, yyp);
+ {
+ yymergeOptionSets (yybest, yyp);
+ *yypp = yyp->yynext;
+ }
else
- switch (yypreference (yybest, yyp))
- {
- case 0:
- yyreportAmbiguity (yybest, yyp, yystack]b4_pure_args[);
- break;
- case 1:
- yymerge = yytrue;
- break;
- case 2:
- break;
- case 3:
- yybest = yyp;
- yymerge = yyfalse;
- break;
- }
+ {
+ switch (yypreference (yybest, yyp))
+ {
+ case 0:
+ yyreportAmbiguity (yybest, yyp, yystack]b4_pure_args[);
+ break;
+ case 1:
+ yymerge = yytrue;
+ break;
+ case 2:
+ break;
+ case 3:
+ yybest = yyp;
+ yymerge = yyfalse;
+ break;
+ }
+ yypp = &yyp->yynext;
+ }
}
if (yymerge)
{
+ yySemanticOption* yyp;
int yyprec = yydprec[yybest->yyrule];
YYCHK (yyresolveAction (yybest, yystack, yyvalp, yylocp]b4_user_args[));
for (yyp = yybest->yynext; yyp != NULL; yyp = yyp->yynext)
yydestruct ("Error: discarding lookahead",
yytoken, yylvalp]b4_location_if([, yyllocp])[);
- /* Now pop stack until empty, destroying its entries as we go. */
- {
- yyGLRState** yystates = yystack.yytops.yystates;
- if (yystates)
- while (yystates[0])
- {
- yyGLRState *yys = yystates[0];
+ /* If the stack is well-formed, pop the stack until it is empty,
+ destroying its entries as we go. But free the stack regardless
+ of whether it is well-formed. */
+ if (yystack.yyitems)
+ {
+ yyGLRState** yystates = yystack.yytops.yystates;
+ if (yystates)
+ while (yystates[0])
+ {
+ yyGLRState *yys = yystates[0];
]b4_location_if([[ yystack.yyerror_range[1].yystate.yyloc = yys->yyloc;]]
-)[ yydestruct ("Error: popping",
- yystos[yys->yylrState],
- &yys->yysemantics.yysval]b4_location_if([, &yys->yyloc])[);
- yystates[0] = yys->yypred;
- yystack.yynextFree -= 1;
- yystack.yyspaceLeft += 1;
- }
- }
+)[ yydestruct ("Error: popping",
+ yystos[yys->yylrState],
+ &yys->yysemantics.yysval]b4_location_if([, &yys->yyloc])[);
+ yystates[0] = yys->yypred;
+ yystack.yynextFree -= 1;
+ yystack.yyspaceLeft += 1;
+ }
+ yyfreeGLRStack (&yystack);
+ }
- yyfreeGLRStack (&yystack);
return yyresult;
}
/* DEBUGGING ONLY */
#ifdef YYDEBUG
-static void yypstack (yyGLRStack* yystack, size_t yyk) ATTRIBUTE_UNUSED;
-static void yypdumpstack (yyGLRStack* yystack) ATTRIBUTE_UNUSED;
+static void yypstack (yyGLRStack* yystack, size_t yyk)
+ __attribute__ ((__unused__));
+static void yypdumpstack (yyGLRStack* yystack) __attribute__ ((__unused__));
static void
yy_yypstack (yyGLRState* yys)
projects / bison.git / blobdiff