From 35f61cb998a30de542f554cd8c47a445af0ef886 Mon Sep 17 00:00:00 2001
From: Akim Demaille <akim@epita.fr>
Date: Mon, 19 Nov 2001 09:13:12 +0000
Subject: [PATCH] * src/symtab.h, src/symtab.c: `line' is a new member of
 `bucket'. * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
 * src/output.c: Adjust.

---
 ChangeLog    |  7 +++++++
 src/gram.h   |  6 ++++--
 src/output.c | 14 ++++++++++----
 src/reader.c | 23 +++--------------------
 src/symtab.c |  4 ++++
 src/symtab.h |  3 +++
 6 files changed, 31 insertions(+), 26 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 4b2e6d9e..8f97247b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+	* src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
+	* src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
+	* src/output.c: Adjust.
+
+	
 2001-11-19  Akim Demaille  <akim@epita.fr>
 
 	* src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
diff --git a/src/gram.h b/src/gram.h
index c12698b6..531d1d9a 100644
--- a/src/gram.h
+++ b/src/gram.h
@@ -55,7 +55,9 @@
    RULE_TABLE[R].precsym -- the symbol-number of the symbol in %prec
    for R (if any).
 
-   RULE_TABLE[R].assoc -- the associativity of the rule.
+   RULE_TABLE[R].assoc -- the associativity of R.
+
+   RULE_TABLE[R].line -- the line where R was defined.
 
    The right hand side is stored as symbol numbers in a portion of
    RITEM.
@@ -97,7 +99,6 @@ extern short *ritem;
 
 extern short *sprec;
 extern short *sassoc;
-extern short *rline;		/* Source line number of each rule */
 
 extern int start_symbol;
 
@@ -117,6 +118,7 @@ typedef struct rule_s
   short prec;
   short precsym;
   short assoc;
+  short line;
 } rule_t;
 
 extern struct rule_s *rule_table;
diff --git a/src/output.c b/src/output.c
index e05d2cab..308ad8d0 100644
--- a/src/output.c
+++ b/src/output.c
@@ -375,10 +375,16 @@ output_rule_data (void)
   obstack_sgrow (&table_obstack, "\n\
 #if YYDEBUG != 0\n");
 
-  output_short_table (&table_obstack,
-           "YYRLINE[YYN] -- source line where rule number YYN was defined",
-		      "yyrline", rline,
-		      0, 1, nrules + 1);
+  {
+    short *values = XCALLOC (short, nrules + 1);
+    for (i = 0; i < nrules + 1; ++i)
+      values[i] = rule_table[i].line;
+    output_short_table (&table_obstack,
+			"YYRLINE[YYN] -- source line where rule number YYN was defined",
+			"yyrline", values,
+			0, 1, nrules + 1);
+    XFREE (values);
+  }
 
   obstack_sgrow (&table_obstack, "#endif\n\n");
 
diff --git a/src/reader.c b/src/reader.c
index 7ba1b55f..35e838a7 100644
--- a/src/reader.c
+++ b/src/reader.c
@@ -1215,20 +1215,6 @@ copy_guard (symbol_list *rule, int stack_offset)
 }
 
 
-static void
-record_rule_line (void)
-{
-  /* Record each rule's source line number in rline table.  */
-
-  if (nrules >= rline_allocated)
-    {
-      rline_allocated = nrules * 2;
-      rline = XREALLOC (rline, short, rline_allocated);
-    }
-  rline[nrules] = lineno;
-}
-
-
 /*-------------------------------------------------------------------.
 | Generate a dummy symbol, a nonterminal, whose name cannot conflict |
 | with the user's names.                                             |
@@ -1371,8 +1357,6 @@ readgram (void)
 	  nrules++;
 	  nitems++;
 
-	  record_rule_line ();
-
 	  p = XCALLOC (symbol_list, 1);
 	  p->sym = lhs;
 
@@ -1450,7 +1434,6 @@ readgram (void)
 		     just read can belong to it.  */
 		  nrules++;
 		  nitems++;
-		  record_rule_line ();
 		  p = XCALLOC (symbol_list, 1);
 		  if (crule1)
 		    crule1->next = p;
@@ -1458,9 +1441,10 @@ readgram (void)
 		    grammar = p;
 		  p->sym = sdummy;
 		  crule1 = XCALLOC (symbol_list, 1);
-		  p->next = crule1;
 		  crule1->next = crule;
 
+		  p->next = crule1;
+
 		  /* Insert the dummy generated by that rule into this
 		     rule.  */
 		  nitems++;
@@ -1884,6 +1868,7 @@ packgram (void)
     {
       rule_table[ruleno].lhs = p->sym->value;
       rule_table[ruleno].rhs = itemno;
+      rule_table[ruleno].line = p->sym->line;
       ruleprec = p->ruleprec;
 
       p = p->next;
@@ -1938,8 +1923,6 @@ reader (void)
   nvars = 0;
   nrules = 0;
   nitems = 0;
-  rline_allocated = 10;
-  rline = XCALLOC (short, rline_allocated);
 
   typed = 0;
   lastprec = 0;
diff --git a/src/symtab.c b/src/symtab.c
index 455e74e2..c701ccd6 100644
--- a/src/symtab.c
+++ b/src/symtab.c
@@ -49,6 +49,9 @@ hash (const char *key)
 static bucket *
 bucket_new (const char *tag, int hashval)
 {
+  /* Hack, until we have a Bison parser. */
+  extern int lineno;
+
   bucket *res = XMALLOC (bucket, 1);
 
   res->link = symtab[hashval];
@@ -61,6 +64,7 @@ bucket_new (const char *tag, int hashval)
   res->user_token_number = SUNDEF;
   res->alias = NULL;
   res->class = unknown_sym;
+  res->line = lineno;
 
   nsyms++;
 
diff --git a/src/symtab.h b/src/symtab.h
index b98902e1..4ebc4a1a 100644
--- a/src/symtab.h
+++ b/src/symtab.h
@@ -42,6 +42,9 @@ typedef struct bucket
   struct bucket *link;
   struct bucket *next;
 
+  /* The line it was found in. */
+  short line;
+
   /* The key, name of the symbol. */
   char *tag;
   /* Its type. */
-- 
2.50.0