/* This is the parser code for GLR (Generalized LR) parser. */
/* FIXME: minimize these */
-#include <stdlib.h>
+#include <assert.h>
#include <setjmp.h>
-#include <stdio.h>
#include <stdarg.h>
-#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
/* Identify Bison output. */
#define YYBISON 1
# define yyfalse 0
#endif
-#if ! defined (yy__GNUC__)
-# define inline
+/*-----------------.
+| GCC extensions. |
+`-----------------*/
+
+#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__
+# define __attribute__(Spec) /* empty */
+# endif
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif
+
+#if ! defined (__GNUC__)
+# define inline
#endif
/* YYFINAL -- State number of the termination state. */
-#define YYFINAL ]b4_final[
+#define YYFINAL ]b4_final_state_number[
#define YYFLAG ]b4_flag[
#define YYLAST ]b4_last[
/* YYNTOKENS -- Number of terminals. */
-#define YYNTOKENS ]b4_ntokens[
+#define YYNTOKENS ]b4_tokens_number[
/* YYNNTS -- Number of nonterminals. */
-#define YYNNTS ]b4_nnts[
+#define YYNNTS ]b4_nterms_number[
/* YYNRULES -- Number of rules. */
-#define YYNRULES ]b4_nrules[
+#define YYNRULES ]b4_rules_number[
/* YYNRULES -- Number of states. */
-#define YYNSTATES ]b4_nstates[
+#define YYNSTATES ]b4_states_number[
/* YYMAXRHS -- Maximum number of symbols on right-hand side of rule. */
#define YYMAXRHS ]b4_r2_max[
((unsigned)(YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
-static const ]b4_uint_type(b4_translate_max)[ yytranslate[] =
+static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
{
]b4_translate[
};
#if YYDEBUG
/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
YYRHS. */
-static const ]b4_uint_type(b4_prhs_max)[ yyprhs[] =
+static const ]b4_int_type_for([b4_prhs])[ yyprhs[] =
{
]b4_prhs[
};
/* YYRHS -- A `-1'-separated list of the rules' RHS. */
-static const ]b4_sint_type(b4_rhs_max)[ yyrhs[] =
+static const ]b4_int_type_for([b4_rhs])[ yyrhs[] =
{
]b4_rhs[
};
/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
-static const ]b4_uint_type(b4_rline_max)[ yyrline[] =
+static const ]b4_int_type_for([b4_rline])[ yyrline[] =
{
]b4_rline[
};
]b4_tname[
};
-#define yytname_size (sizeof (yytname) / sizeof (yytname[0]))
+#define yytname_size ((int) (sizeof (yytname) / sizeof (yytname[0])))
#endif
/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
-static const ]b4_uint_type(b4_r1_max)[ yyr1[] =
+static const ]b4_int_type_for([b4_r1])[ yyr1[] =
{
]b4_r1[
};
/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
-static const ]b4_uint_type(b4_r2_max)[ yyr2[] =
+static const ]b4_int_type_for([b4_r2])[ yyr2[] =
{
]b4_r2[
};
/* YYDPREC[RULE-NUM] -- Dynamic precedence of rule #RULE-NUM (0 if none). */
-static const short yydprec[] =
+static const ]b4_int_type_for([b4_dprec])[ yydprec[] =
{
]b4_dprec[
};
/* YYMERGER[RULE-NUM] -- Index of merging function for rule #RULE-NUM. */
-static const short yymerger[] =
+static const ]b4_int_type_for([b4_merger])[ yymerger[] =
{
]b4_merger[
};
/* YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE
doesn't specify something else to do. Zero means the default is an
error. */
-static const short yydefact[] =
+static const ]b4_int_type_for([b4_defact])[ yydefact[] =
{
]b4_defact[
};
-/* YYPGOTO[NTERM-NUM]. */
-static const short yydefgoto[] =
+/* YYPDEFGOTO[NTERM-NUM]. */
+static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
{
]b4_defgoto[
};
/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
STATE-NUM. */
-static const short yypact[] =
+#define YYPACT_NINF ]b4_pact_ninf[
+static const ]b4_int_type_for([b4_pact])[ yypact[] =
{
]b4_pact[
};
/* YYPGOTO[NTERM-NUM]. */
-static const short yypgoto[] =
+static const ]b4_int_type_for([b4_pgoto])[ yypgoto[] =
{
]b4_pgoto[
};
/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
positive, shift that token. If negative, reduce the rule which
number is the opposite. If zero, do what YYDEFACT says. */
-static const short yytable[] =
+#define YYTABLE_NINF ]b4_table_ninf[
+static const ]b4_int_type_for([b4_table])[ yytable[] =
{
]b4_table[
};
of conflicting reductions corresponding to action entry for state
STATE-NUM in yytable. 0 means no conflicts. The list in yyconfl
is terminated by a rule number of 0. */
-static const short yyconflp[] =
+static const ]b4_int_type_for([b4_conflict_list_heads])[ yyconflp[] =
{
]b4_conflict_list_heads[
};
/* YYCONFL[I] -- lists of conflicting rule numbers, each terminated
by 0, pointed into by YYCONFLP. */
-static const short yyconfl[] =
+]dnl Do not use b4_int_type_for here, since there are places where
+dnl pointers onto yyconfl are taken, which type is "short *".
+dnl We probably ought to introduce a type for confl.
+[static const short yyconfl[] =
{
]b4_conflicting_rules[
};
-static const short yycheck[] =
+static const ]b4_int_type_for([b4_check])[ yycheck[] =
{
]b4_check[
};
#define YYRHSLOC(yyRhs,YYK) (yyRhs[YYK].yystate.yyloc)
#ifndef YYLLOC_DEFAULT
-# define YYLLOC_DEFAULT(yyCurrent, yyRhs, YYN) \
- yyCurrent.yyfirst_line = YYRHSLOC(yyRhs,1).yyfirst_line; \
- yyCurrent.yyfirst_column = YYRHSLOC(yyRhs,1).yyfirst_column; \
- yyCurrent.yylast_line = YYRHSLOC(yyRhs,YYN).yylast_line; \
+# define YYLLOC_DEFAULT(yyCurrent, yyRhs, YYN) \
+ yyCurrent.yyfirst_line = YYRHSLOC(yyRhs,1).yyfirst_line; \
+ yyCurrent.yyfirst_column = YYRHSLOC(yyRhs,1).yyfirst_column; \
+ yyCurrent.yylast_line = YYRHSLOC(yyRhs,YYN).yylast_line; \
yyCurrent.yylast_column = YYRHSLOC(yyRhs,YYN).yylast_column;
#endif
multiple parsers can coexist. */
int yydebug;
#else /* !YYDEBUG */
-# define YYDPRINTF(Args)
+ /* Avoid empty `if' bodies. */
+# define YYDPRINTF(Args) {}
#endif /* !YYDEBUG */
/* YYINITDEPTH -- initial size of the parser's stacks. */
yyuserAction (yyRuleNum yyn, int yyrhslen, yyGLRStackItem* yyvsp,
YYSTYPE* yyvalp, YYLTYPE* yylocp, yyGLRStack* yystack)
{
+ /* Avoid `unused' warnings in there are no $n. */
+ (void) yystack;
+
if (yyrhslen == 0)
{
*yyvalp = yyval_default;
yyuserMerge (int yyn, YYSTYPE* yy0, YYSTYPE* yy1)
{
YYSTYPE yyval = *yy0;
+ /* `Use' the arguments. */
+ (void) yy0;
+ (void) yy1;
+
switch (yyn)
{
b4_mergers
static inline bool
yyisDefaultedState (yyStateNum yystate)
{
- return yypact[yystate] == YYFLAG;
+ return yypact[yystate] == YYPACT_NINF;
}
/** The default reduction for STATE, assuming it has one. */
static inline bool
yyisErrorAction (int yyaction)
{
- return yyaction == 0 || yyaction == YYFLAG;
+ return yyaction == 0 || yyaction == YYPACT_NINF;
}
/* GLRStates */
return yystate->yyresolved;
}
-void yyaddDeferredAction (yyGLRStack* yystack, yyGLRState* yystate,
- yyGLRState* yyrhs, yyRuleNum yyrule)
+static void
+yyaddDeferredAction (yyGLRStack* yystack, yyGLRState* yystate,
+ yyGLRState* yyrhs, yyRuleNum yyrule)
{
yySemanticOption* yynewItem;
yynewItem = &yystack->yynextFree->yyoption;
static inline void
yyremoveDeletes (yyGLRStack* yystack)
{
- int yyi, yyj;
+ size_t yyi, yyj;
yyi = yyj = 0;
while (yyj < yystack->yytops.yysize)
{
if (yystack->yytops.yystates[yyi] == NULL)
{
- if (YYDEBUG && yyi == yyj)
+ if (yyi == yyj)
YYDPRINTF ((stderr, "Removing dead stacks.\n"));
yystack->yytops.yysize -= 1;
}
* added to the options for the existing state's semantic value.
*/
static inline YYRESULTTAG
-yyglrReduce (yyGLRStack* yystack, int yyk, yyRuleNum yyrule, bool yyforceEval)
+yyglrReduce (yyGLRStack* yystack, size_t yyk, yyRuleNum yyrule,
+ bool yyforceEval)
{
- int yyposn = yystack->yytops.yystates[yyk]->yyposn;
+ size_t yyposn = yystack->yytops.yystates[yyk]->yyposn;
if (yyforceEval || yystack->yysplitPoint == NULL)
{
}
else
{
- int yyi, yyn;
+ size_t yyi;
+ int yyn;
yyGLRState* yys, *yys0 = yystack->yytops.yystates[yyk];
yyStateNum yynewLRState;
* parsing state; return 0 if no combination is possible,
* 1 if user-mergeable, 2 if Y0 is preferred, 3 if Y1 is preferred. */
static int
-yypreference (yySemanticOption* yyy0, yySemanticOption* yyy1)
+yypreference (yySemanticOption* y0, yySemanticOption* y1)
{
- yyRuleNum yyr0 = yyy0->yyrule, yyr1 = yyy1->yyrule;
- int yyp0 = yydprec[yyr0], yyp1 = yydprec[yyr1];
+ yyRuleNum r0 = y0->yyrule, r1 = y1->yyrule;
+ int p0 = yydprec[r0], p1 = yydprec[r1];
- if (yyp0 == yyp1)
+ if (p0 == p1)
{
- if (yymerger[yyr0] == 0 || yymerger[yyr0] != yymerger[yyr1])
+ if (yymerger[r0] == 0 || yymerger[r0] != yymerger[r1])
return 0;
else
return 1;
}
- if (yyp0 == 0 || yyp1 == 0)
+ if (p0 == 0 || p1 == 0)
return 0;
- if (yyp0 < yyp1)
+ if (p0 < p1)
return 3;
- if (yyp0 > yyp1)
+ if (p0 > p1)
return 2;
return 0;
}
yyreportAmbiguity (yySemanticOption* yyx0, yySemanticOption* yyx1,
yyGLRStack* yystack)
{
+ /* `Unused' warnings. */
+ (void) yyx0;
+ (void) yyx1;
+
#if YYDEBUG
YYFPRINTF (stderr, "Ambiguity detected.\n");
YYFPRINTF (stderr, "Option 1,\n");
static void
yyreportParseError (yyGLRStack* yystack, YYSTYPE* yylvalp, YYLTYPE* yyllocp)
{
- yySymbol* const yytokenp = yystack->yytokenp;
+ /* `Unused' warnings. */
+ (void) yylvalp;
+ (void) yyllocp;
if (yystack->yyerrState == 0)
{
#if YYERROR_VERBOSE
- int yyn, yyx, yycount, yysize;
- char* yyprefix;
+ yySymbol* const yytokenp = yystack->yytokenp;
+ int yyn, yyx, yycount;
+ size_t yysize;
+ const char* yyprefix;
char* yyp;
char* yymsg;
yyn = yypact[yystack->yytops.yystates[0]->yylrState];
- if (yyn > YYFLAG && yyn < YYLAST)
+ if (YYPACT_NINF < yyn && yyn < YYLAST)
{
yycount = 0;
/* Start YYX at -YYN if negative to avoid negative indexes in
yyprefix = ", expecting ";
for (yyx = yyn < 0 ? -yyn : 0; yyx < yytname_size && yycount <= 5;
yyx += 1)
- if (yycheck[yyx + yyn] == yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
yysize += strlen (yytokenName (yyx)) + strlen (yyprefix),
yycount += 1, yyprefix = " or ";
yymsg = yyp = (char*) malloc (yysize);
yyrecoverParseError (yyGLRStack* yystack, YYSTYPE* yylvalp, YYLTYPE* yyllocp)
{
yySymbol* const yytokenp = yystack->yytokenp;
- int yyk, yyj;
+ size_t yyk;
+ int yyj;
if (yystack->yyerrState == 0)
yystack->yyerrState = 3;
*yytokenp = YYTRANSLATE (yychar);
YYDPRINTF ((stderr, "Read token %s\n", yytokenName (*yytokenp)));
yyj = yypact[yystack->yytops.yystates[0]->yylrState];
- if (yyj == YYFLAG)
+ if (yyj == YYPACT_NINF)
/* Something's not right; we shouldn't be here */
yyFail (yystack, NULL);
yyj += *yytokenp;
if (yydefact[yystack->yytops.yystates[0]->yylrState] != 0)
return;
}
- else if (yytable[yyj] != 0 && yytable[yyj] != YYFLAG)
+ else if (yytable[yyj] != 0 && yytable[yyj] != YYTABLE_NINF)
return;
} while (yytrue);
}
while (yystack->yytops.yystates[0] != NULL)
{
yyj = yypact[yystack->yytops.yystates[0]->yylrState] + YYTERROR;
- if (yyj != YYFLAG + YYTERROR && yyj >= 0 && yyj <= YYLAST &&
+ if (yyj != YYPACT_NINF + YYTERROR && yyj >= 0 && yyj <= YYLAST &&
yycheck[yyj] == YYTERROR && yyisShiftAction (yytable[yyj]))
{
yyglrShift (yystack, 0, yytable[yyj],
}
/* DEBUGGING ONLY */
+static void yypstack (yyGLRStack* yystack, int yyk) ATTRIBUTE_UNUSED;
+static void yypdumpstack (yyGLRStack* yystack) ATTRIBUTE_UNUSED;
-void
-yypstates (yyGLRState* yyst)
+static void
+yy_yypstack (yyGLRState* yys)
{
- void yy_yypstack (yyGLRState* yys)
+ if (yys->yypred)
{
- if (yys->yypred == NULL)
- fprintf (stderr, "%d@%d", yys->yylrState, yys->yyposn);
- else
- {
- yy_yypstack (yys->yypred);
- fprintf (stderr, " -> %d@%d", yys->yylrState, yys->yyposn);
- }
+ yy_yypstack (yys->yypred);
+ fprintf (stderr, " -> ");
}
+ fprintf (stderr, "%d@%lu", yys->yylrState, (unsigned long) yys->yyposn);
+}
+static void
+yypstates (yyGLRState* yyst)
+{
if (yyst == NULL)
fprintf (stderr, "<null>");
else
fprintf (stderr, "\n");
}
-void
+static void
yypstack (yyGLRStack* yystack, int yyk)
{
yypstates (yystack->yytops.yystates[yyk]);
((YYX) == NULL ? -1 : (yyGLRStackItem*) (YYX) - yystack->yyitems)
-void
+static void
yypdumpstack (yyGLRStack* yystack)
{
yyGLRStackItem* yyp;
- int yyi;
+ size_t yyi;
for (yyp = yystack->yyitems; yyp < yystack->yynextFree; yyp += 1)
{
- fprintf (stderr, "%3d. ", yyp - yystack->yyitems);
+ fprintf (stderr, "%3lu. ", (unsigned long) (yyp - yystack->yyitems));
if (*(bool*) yyp)
{
- fprintf (stderr, "Res: %d, LR State: %d, posn: %d, pred: %d",
+ fprintf (stderr, "Res: %d, LR State: %d, posn: %lu, pred: %ld",
yyp->yystate.yyresolved, yyp->yystate.yylrState,
- yyp->yystate.yyposn,
- YYINDEX(yyp->yystate.yypred));
+ (unsigned long) yyp->yystate.yyposn,
+ (long) YYINDEX (yyp->yystate.yypred));
if (! yyp->yystate.yyresolved)
- fprintf (stderr, ", firstVal: %d",
- YYINDEX (yyp->yystate.yysemantics.yyfirstVal));
+ fprintf (stderr, ", firstVal: %ld",
+ (long) YYINDEX (yyp->yystate.yysemantics.yyfirstVal));
}
else
{
- fprintf (stderr, "Option. rule: %d, state: %d, next: %d",
- yyp->yyoption.yyrule, YYINDEX (yyp->yyoption.yystate),
- YYINDEX (yyp->yyoption.yynext));
+ fprintf (stderr, "Option. rule: %d, state: %ld, next: %ld",
+ yyp->yyoption.yyrule,
+ (long) YYINDEX (yyp->yyoption.yystate),
+ (long) YYINDEX (yyp->yyoption.yynext));
}
fprintf (stderr, "\n");
}
fprintf (stderr, "Tops:");
for (yyi = 0; yyi < yystack->yytops.yysize; yyi += 1)
- fprintf (stderr, "%d: %d; ", yyi, YYINDEX (yystack->yytops.yystates[yyi]));
+ fprintf (stderr, "%lu: %ld; ", (unsigned long) yyi,
+ (long) YYINDEX (yystack->yytops.yystates[yyi]));
fprintf (stderr, "\n");
}
projects / bison.git / blobdiff