unsigned *fp1;
unsigned *fp2;
int redprec;
- errs *errp = (errs *) xcalloc (sizeof (errs) + ntokens * sizeof (short), 1);
+ errs *errp = ERRS_ALLOC (ntokens + 1);
short *errtokens = errp->errs;
/* find the rule to reduce by to get precedence of reduction */
- redprec = rprec[LAruleno[lookaheadnum]];
+ redprec = rule_table[LAruleno[lookaheadnum]].prec;
mask = 1;
- fp1 = LA + lookaheadnum * tokensetsize;
+ fp1 = LA (lookaheadnum);
fp2 = lookaheadset;
for (i = 0; i < ntokens; i++)
{
/* Some tokens have been explicitly made errors. Allocate
a permanent errs structure for this state, to record them. */
i = (char *) errtokens - (char *) errp;
- err_table[state] = (errs *) xcalloc ((unsigned int) i, 1);
+ err_table[state] = ERRS_ALLOC (i + 1);
bcopy (errp, err_table[state], i);
}
else
static void
set_conflicts (int state)
{
- int i;
- int k;
+ int i, j;
shifts *shiftp;
- unsigned *fp2;
- unsigned *fp3;
- unsigned *fp4;
- unsigned *fp1;
int symbol;
if (state_table[state].consistent)
shiftp = state_table[state].shift_table;
if (shiftp)
- {
- k = shiftp->nshifts;
- for (i = 0; i < k; i++)
- {
- symbol = state_table[shiftp->shifts[i]].accessing_symbol;
- if (ISVAR (symbol))
- break;
- SETBIT (lookaheadset, symbol);
- }
- }
-
- k = state_table[state + 1].lookaheads;
- fp4 = lookaheadset + tokensetsize;
+ for (i = 0; i < shiftp->nshifts; i++)
+ {
+ symbol = state_table[shiftp->shifts[i]].accessing_symbol;
+ if (ISVAR (symbol))
+ break;
+ SETBIT (lookaheadset, symbol);
+ }
/* Loop over all rules which require lookahead in this state. First
check for shift-reduce conflict, and try to resolve using
precedence */
- for (i = state_table[state].lookaheads; i < k; i++)
- if (rprec[LAruleno[i]])
- {
- fp1 = LA + i * tokensetsize;
- fp2 = fp1;
- fp3 = lookaheadset;
-
- while (fp3 < fp4)
+ for (i = state_table[state].lookaheads;
+ i < state_table[state + 1].lookaheads;
+ ++i)
+ if (rule_table[LAruleno[i]].prec)
+ for (j = 0; j < tokensetsize; ++j)
+ if (LA (i)[j] & lookaheadset[j])
{
- if (*fp2++ & *fp3++)
- {
- resolve_sr_conflict (state, i);
- break;
- }
+ resolve_sr_conflict (state, i);
+ break;
}
- }
/* Loop over all rules which require lookahead in this state. Check
for conflicts not resolved above. */
- for (i = state_table[state].lookaheads; i < k; i++)
+ for (i = state_table[state].lookaheads;
+ i < state_table[state + 1].lookaheads;
+ ++i)
{
- fp1 = LA + i * tokensetsize;
- fp2 = fp1;
- fp3 = lookaheadset;
-
- while (fp3 < fp4)
- if (*fp2++ & *fp3++)
+ for (j = 0; j < tokensetsize; ++j)
+ if (LA (i)[j] & lookaheadset[j])
conflicts[state] = 1;
- fp2 = fp1;
- fp3 = lookaheadset;
-
- while (fp3 < fp4)
- *fp3++ |= *fp2++;
+ for (j = 0; j < tokensetsize; ++j)
+ lookaheadset[j] |= LA (i)[j];
}
}
for (i = state_table[state].lookaheads; i < k; i++)
{
- fp1 = LA + i * tokensetsize;
+ fp1 = LA (i);
fp2 = lookaheadset;
while (fp2 < fp3)
return 0;
mask = 1;
- baseword = LA + m * tokensetsize;
+ baseword = LA (m);
for (i = 0; i < ntokens; i++)
{
unsigned *wordp = baseword;
{
int i;
+ /* Is the number of SR conflicts OK? Either EXPECTED_CONFLICTS is
+ not set, and then we want 0 SR, or else it is specified, in which
+ case we want equality. */
+ int src_ok = 0;
+
int src_total = 0;
int rrc_total = 0;
rrc_total += count_rr_conflicts (i);
}
+ src_ok = src_total == (expected_conflicts == -1 ? 0 : expected_conflicts);
+
+ /* If there are no RR conflicts, and as many SR conflicts as
+ expected, then there is nothing to report. */
+ if (!rrc_total && src_ok)
+ return;
+
/* Report the total number of conflicts on STDERR. */
- if (src_total || rrc_total)
+ if (yacc_flag)
{
- if (yacc_flag)
- {
- /* If invoked with `--yacc', use the output format specified by
- POSIX. */
- fprintf (stderr, _("conflicts: "));
- if (src_total > 0)
- fprintf (stderr, _(" %d shift/reduce"), src_total);
- if (src_total > 0 && rrc_total > 0)
- fprintf (stderr, ",");
- if (rrc_total > 0)
- fprintf (stderr, _(" %d reduce/reduce"), rrc_total);
- putc ('\n', stderr);
- }
- else
- {
- fprintf (stderr, _("%s contains "), infile);
- fputs (conflict_report (src_total, rrc_total), stderr);
- }
+ /* If invoked with `--yacc', use the output format specified by
+ POSIX. */
+ fprintf (stderr, _("conflicts: "));
+ if (src_total > 0)
+ fprintf (stderr, _(" %d shift/reduce"), src_total);
+ if (src_total > 0 && rrc_total > 0)
+ fprintf (stderr, ",");
+ if (rrc_total > 0)
+ fprintf (stderr, _(" %d reduce/reduce"), rrc_total);
+ putc ('\n', stderr);
+ }
+ else
+ {
+ fprintf (stderr, _("%s contains "), infile);
+ fputs (conflict_report (src_total, rrc_total), stderr);
}
- if (expected_conflicts != -1
- && src_total != expected_conflicts)
+ if (expected_conflicts != -1 && !src_ok)
{
complain_message_count++;
- fprintf (stderr, ngettext ("expected %d shift/reduce conflict",
- "expected %d shift/reduce conflicts",
+ fprintf (stderr, ngettext ("expected %d shift/reduce conflict\n",
+ "expected %d shift/reduce conflicts\n",
expected_conflicts),
expected_conflicts);
}
{
default_rule = LAruleno[m];
- fp1 = LA + m * tokensetsize;
+ fp1 = LA (m);
fp2 = shiftset;
fp3 = lookaheadset;
fp4 = lookaheadset + tokensetsize;
{
if (mask & *fp3)
fprintf (out, _(" %-4s\t[reduce using rule %d (%s)]\n"),
- tags[i], default_rule, tags[rlhs[default_rule]]);
+ tags[i], default_rule,
+ tags[rule_table[default_rule].lhs]);
mask <<= 1;
if (mask == 0)
}
fprintf (out, _(" $default\treduce using rule %d (%s)\n\n"),
- default_rule, tags[rlhs[default_rule]]);
+ default_rule, tags[rule_table[default_rule].lhs]);
}
else if (n - m >= 1)
{
if (!nodefault)
for (i = m; i < n; i++)
{
- fp1 = LA + i * tokensetsize;
+ fp1 = LA (i);
fp2 = shiftset;
fp3 = lookaheadset;
}
mask = 1;
- fp1 = LA + m * tokensetsize;
+ fp1 = LA (m);
fp2 = shiftset;
for (i = 0; i < ntokens; i++)
{
rule = LAruleno[j];
fprintf (out,
_(" %-4s\treduce using rule %d (%s)\n"),
- tags[i], rule, tags[rlhs[rule]]);
+ tags[i], rule, tags[rule_table[rule].lhs]);
}
else
defaulted = 1;
rule = LAruleno[default_LA];
fprintf (out,
_(" %-4s\treduce using rule %d (%s)\n"),
- tags[i], rule, tags[rlhs[rule]]);
+ tags[i], rule, tags[rule_table[rule].lhs]);
defaulted = 0;
}
rule = LAruleno[j];
fprintf (out,
_(" %-4s\t[reduce using rule %d (%s)]\n"),
- tags[i], rule, tags[rlhs[rule]]);
+ tags[i], rule, tags[rule_table[rule].lhs]);
}
}
if (default_LA >= 0)
fprintf (out, _(" $default\treduce using rule %d (%s)\n"),
- default_rule, tags[rlhs[default_rule]]);
+ default_rule, tags[rule_table[default_rule].lhs]);
}
}
projects / bison.git / blobdiff