X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/037ca2f14c3e23460211a9dce5cfc0ee5878d800..e3f1699f5554776a9211b410f3ebdaa6120e62df:/src/reader.c

diff --git a/src/reader.c b/src/reader.c
index 80ed485a..03c0d311 100644
--- a/src/reader.c
+++ b/src/reader.c
@@ -724,7 +724,6 @@ token_buffer);
 	}
 
       prev = t;
-
     }
 }
 
@@ -852,7 +851,7 @@ parse_thong_decl (void)
   token_t token;
   struct bucket *symbol;
   char *typename = 0;
-  int usrtoknum = 0;
+  int usrtoknum = SUNDEF;
 
   token = lex ();		/* fetch typename or first token */
   if (token == tok_typename)
@@ -963,16 +962,13 @@ parse_skel_decl (void)
 static void
 read_declarations (void)
 {
-  int c;
-  int tok;
-
   for (;;)
     {
-      c = skip_white_space ();
+      int c = skip_white_space ();
 
       if (c == '%')
 	{
-	  tok = parse_percent_token ();
+	  token_t tok = parse_percent_token ();
 
 	  switch (tok)
 	    {
@@ -1034,6 +1030,13 @@ read_declarations (void)
 	    case tok_noop:
 	      break;
 
+	    case tok_stropt:
+	    case tok_intopt:
+	    case tok_obsolete:
+	    case tok_illegal:
+	      abort ();
+	      break;
+
 	    default:
 	      complain (_("unrecognized: %s"), token_buffer);
 	      skip_to_char ('%');
@@ -1724,6 +1727,9 @@ token_translations_init (void)
       /* A token string alias? */
       if (bp->user_token_number == SALIAS)
 	continue;
+
+      assert (bp->user_token_number != SUNDEF);
+
       /* A token which translation has already been set? */
       if (token_translations[bp->user_token_number] != 2)
 	complain (_("tokens %s and %s both assigned number %d"),
@@ -1810,7 +1816,7 @@ packsymbols (void)
 
       if (bp->class == token_sym)
 	{
-	  if (bp->user_token_number == 0)
+	  if (bp->user_token_number == SUNDEF)
 	    bp->user_token_number = ++last_user_token_number;
 	  if (bp->user_token_number > max_user_token_number)
 	    max_user_token_number = bp->user_token_number;
@@ -1826,6 +1832,22 @@ packsymbols (void)
 
   error_token_number = errtoken->value;
 
+  if (startval->class == unknown_sym)
+    fatal (_("the start symbol %s is undefined"), startval->tag);
+  else if (startval->class == token_sym)
+    fatal (_("the start symbol %s is a token"), startval->tag);
+
+  start_symbol = startval->value;
+}
+
+
+/*-----------------------------------.
+| Output definition of token names.  |
+`-----------------------------------*/
+
+static void
+symbols_output (void)
+{
   {
     struct obstack tokendefs;
     obstack_init (&tokendefs);
@@ -1840,13 +1862,6 @@ packsymbols (void)
     output_token_defines (&table_obstack);
 #endif
 
-  if (startval->class == unknown_sym)
-    fatal (_("the start symbol %s is undefined"), startval->tag);
-  else if (startval->class == token_sym)
-    fatal (_("the start symbol %s is a token"), startval->tag);
-
-  start_symbol = startval->value;
-
   if (defines_flag)
     {
       output_token_defines (&defines_obstack);
@@ -2014,6 +2029,7 @@ reader (void)
   /* Assign the symbols their symbol numbers.  Write #defines for the
      token symbols into FDEFINES if requested.  */
   packsymbols ();
+  symbols_output ();
   /* Convert the grammar into the format described in gram.h.  */
   packgram ();
 }