X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/6b7e85b9940d4313ab2f1663a449fdcb8b61df4b..1f41899519dcf9dd525b68035baf5bc5ed74efc6:/src/symtab.h

diff --git a/src/symtab.h b/src/symtab.h
index b98902e1..591c6b8e 100644
--- a/src/symtab.h
+++ b/src/symtab.h
@@ -1,5 +1,6 @@
 /* Definitions for symtab.c and callers, part of bison,
-   Copyright 1984, 1989, 1992, 2000, 2001  Free Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -20,12 +21,19 @@
 
 #ifndef SYMTAB_H_
 # define SYMTAB_H_
-# include "gram.h"
 
 #define	TABSIZE	1009
 
-/*  symbol classes  */
+/* Associativity values for tokens and rules.  */
+typedef enum
+{
+  right_assoc,
+  left_assoc,
+  non_assoc
+} associativity;
 
+
+/* Symbol classes.  */
 typedef enum
 {
   unknown_sym,
@@ -33,37 +41,42 @@ typedef enum
   nterm_sym		/* non-terminal */
 } symbol_class;
 
+/* Internal token numbers. */
+typedef short token_number_t;
+
 #define SUNDEF  -1              /* For undefined user number. */
 #define SALIAS	-9991		/* for symbol generated with an alias */
 
-typedef struct bucket
-{
-  /* Needed for the hash table. */
-  struct bucket *link;
-  struct bucket *next;
+#define NUMBER_UNDEFINED ((token_number_t) -1)
 
+struct symbol_s
+{
   /* The key, name of the symbol. */
   char *tag;
   /* Its type. */
   char *type_name;
-  short value;
+
+  token_number_t number;
   short prec;
   associativity assoc;
-  short user_token_number;
+  int user_token_number;
+
   /* Points to the other in the identifier-symbol pair for an
      alias. Special value SALIAS in the identifier half of the
      identifier-symbol pair for an alias.  */
-  struct bucket *alias;
+  struct symbol_s *alias;
   symbol_class class;
-}
-bucket;
+};
 
+typedef struct symbol_s symbol_t;
 
-extern bucket *firstsymbol;
+/* A function to apply to each symbol. */
+typedef bool (*symbol_processor) PARAMS ((symbol_t *));
 
-bucket *getsym PARAMS ((const char *));
+symbol_t *getsym PARAMS ((const char *));
 
-void tabinit PARAMS ((void));
-void free_symtab PARAMS ((void));
+void symbols_new PARAMS ((void));
+void symbols_do PARAMS ((symbol_processor processor, void *processor_data));
+void symbols_free PARAMS ((void));
 
 #endif /* !SYMTAB_H_ */