Warn about dubious constructions like "%token T T".

[bison.git] / src / symtab.h

diff --git a/src/symtab.h b/src/symtab.h
index 725b6cb8eed6a46c4adde4b324c7ebf4451df639..0f852b7aa7dd9bb22d9aec905fa817c224de4d46 100644 (file)
--- a/src/symtab.h
+++ b/src/symtab.h
@@ -1,6 +1,6 @@
 /* Definitions for symtab.c and callers, part of Bison.
 
-   Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002, 2004, 2005
+   Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002, 2004, 2005, 2006
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
@@ -60,10 +60,12 @@ struct symbol
   uniqstr type_name;
   location type_location;
 
-  char *destructor;
+  /* Does not own the memory. */
+  const char *destructor;
   location destructor_location;
 
-  char *printer;
+  /* Does not own the memory. */
+  const char *printer;
   location printer_location;
 
   symbol_number number;
@@ -77,6 +79,7 @@ struct symbol
      identifier-symbol pair for an alias.  */
   symbol *alias;
   symbol_class class;
+  bool declared;
 };
 
 /* Undefined user number.  */
@@ -92,7 +95,7 @@ struct symbol
 #define NUMBER_UNDEFINED (-1)
 
 /* Print a symbol (for debugging). */
-void symbol_print (FILE *f, symbol *s);
+void symbol_print (symbol *s, FILE *f);
 
 /* Fetch (or create) the symbol associated to KEY.  */
 symbol *symbol_get (const char *key, location loc);
@@ -109,17 +112,18 @@ void symbol_make_alias (symbol *sym, symbol *symval, location loc);
 void symbol_type_set (symbol *sym, uniqstr type_name, location loc);
 
 /* Set the DESTRUCTOR associated with SYM.  */
-void symbol_destructor_set (symbol *sym, char *destructor, location loc);
+void symbol_destructor_set (symbol *sym, const char *destructor, location loc);
 
 /* Set the PRINTER associated with SYM.  */
-void symbol_printer_set (symbol *sym, char *printer, location loc);
+void symbol_printer_set (symbol *sym, const char *printer, location loc);
 
 /* Set the PRECEDENCE associated with SYM.  Ensure that SYMBOL is a
    terminal.  Do nothing if invoked with UNDEF_ASSOC as ASSOC.  */
 void symbol_precedence_set (symbol *sym, int prec, assoc a, location loc);
 
 /* Set the CLASS associated with SYM.  */
-void symbol_class_set (symbol *sym, symbol_class class, location loc);
+void symbol_class_set (symbol *sym, symbol_class class, location loc,
+                      bool declaring);
 
 /* Set the USER_TOKEN_NUMBER associated with SYM.  */
 void symbol_user_token_number_set (symbol *sym, int user_number, location loc);