Fix push parsing memory leak reported by Brandon Lucia at

[bison.git] / src / print.c

diff --git a/src/print.c b/src/print.c
index 08feaafbcc543b2b2a42e9193a012ea7fad7249e..07fd1d04c1c01afcd81680315518a98dee0648f6 100644 (file)
--- a/src/print.c
+++ b/src/print.c
@@ -1,6 +1,6 @@
 /* Print information on generated parser, for bison,
 
 /* Print information on generated parser, for bison,
 

-   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005
+   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005, 2007

    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.


@@ -40,7 +40,7 @@
 #include "symtab.h"
 #include "tables.h"
 
 #include "symtab.h"
 #include "tables.h"
 

-static bitset shift_set;
+static bitset no_reduce_set;

 
 #if 0
 static void
 
 #if 0
 static void


@@ -81,7 +81,7 @@ print_core (FILE *out, state *s)
     {
       closure (sitems, snritems);
       sitems = itemset;
     {
       closure (sitems, snritems);
       sitems = itemset;

-      snritems = nritemset;
+      snritems = nitemset;

     }
 
   if (!snritems)
     }
 
   if (!snritems)


@@ -252,9 +252,12 @@ print_reductions (FILE *out, state *s)
   if (yydefact[s->number] != 0)
     default_rule = &rules[yydefact[s->number] - 1];
 
   if (yydefact[s->number] != 0)
     default_rule = &rules[yydefact[s->number] - 1];
 

-  bitset_zero (shift_set);
+  bitset_zero (no_reduce_set);

   FOR_EACH_SHIFT (trans, i)
   FOR_EACH_SHIFT (trans, i)

-    bitset_set (shift_set, TRANSITION_SYMBOL (trans, i));
+    bitset_set (no_reduce_set, TRANSITION_SYMBOL (trans, i));
+  for (i = 0; i < s->errs->num; ++i)
+    if (s->errs->symbols[i])
+      bitset_set (no_reduce_set, s->errs->symbols[i]->number);

 
   /* Compute the width of the lookahead token column.  */
   if (default_rule)
 
   /* Compute the width of the lookahead token column.  */
   if (default_rule)


@@ -263,7 +266,7 @@ print_reductions (FILE *out, state *s)
   if (reds->lookahead_tokens)
     for (i = 0; i < ntokens; i++)
       {
   if (reds->lookahead_tokens)
     for (i = 0; i < ntokens; i++)
       {

-       bool count = bitset_test (shift_set, i);
+       bool count = bitset_test (no_reduce_set, i);

 
        for (j = 0; j < reds->num; ++j)
          if (bitset_test (reds->lookahead_tokens[j], i))
 
        for (j = 0; j < reds->num; ++j)
          if (bitset_test (reds->lookahead_tokens[j], i))


@@ -293,7 +296,7 @@ print_reductions (FILE *out, state *s)
     for (i = 0; i < ntokens; i++)
       {
        bool defaulted = false;
     for (i = 0; i < ntokens; i++)
       {
        bool defaulted = false;

-       bool count = bitset_test (shift_set, i);
+       bool count = bitset_test (no_reduce_set, i);

 
        for (j = 0; j < reds->num; ++j)
          if (bitset_test (reds->lookahead_tokens[j], i))
 
        for (j = 0; j < reds->num; ++j)
          if (bitset_test (reds->lookahead_tokens[j], i))


@@ -498,10 +501,10 @@ print_results (void)
   if (report_flag & report_itemsets)
     new_closure (nritems);
   /* Storage for print_reductions.  */
   if (report_flag & report_itemsets)
     new_closure (nritems);
   /* Storage for print_reductions.  */

-  shift_set =  bitset_create (ntokens, BITSET_FIXED);
+  no_reduce_set =  bitset_create (ntokens, BITSET_FIXED);

   for (i = 0; i < nstates; i++)
     print_state (out, states[i]);
   for (i = 0; i < nstates; i++)
     print_state (out, states[i]);

-  bitset_free (shift_set);
+  bitset_free (no_reduce_set);

   if (report_flag & report_itemsets)
     free_closure ();
 
   if (report_flag & report_itemsets)
     free_closure ();