X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/378f4bd846c4312ddeb11f151382226e30050d3c..47aee066ccabdb3aeb96735532167c551f8e7194:/src/symlist.h?ds=sidebyside

diff --git a/src/symlist.h b/src/symlist.h
index 480c97d4..215fdf0a 100644
--- a/src/symlist.h
+++ b/src/symlist.h
@@ -1,6 +1,6 @@
 /* Lists of symbols for Bison
 
-   Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005, 2006 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -32,17 +32,29 @@ typedef struct symbol_list
   symbol *sym;
   location location;
 
+  /* If this symbol is the generated lhs for a midrule but this is the rule in
+     whose rhs it appears, MIDRULE = a pointer to that midrule.  */
+  struct symbol_list *midrule;
+
+  /* If this symbol is the generated lhs for a midrule and this is that
+     midrule, MIDRULE_PARENT_RULE = a pointer to the rule in whose rhs it
+     appears, and MIDRULE_PARENT_RHS_INDEX = its rhs index (1-origin) in the
+     parent rule.  */
+  struct symbol_list *midrule_parent_rule;
+  int midrule_parent_rhs_index;
+
   /* The action is attached to the LHS of a rule. */
   const char *action;
   location action_location;
 
-  /* Whether this symbol's value is used in the current action. */
+  /* Whether this symbol's value is used in the current action.  */
   bool used;
 
   /* Precedence/associativity.  */
   symbol *ruleprec;
   int dprec;
   int merger;
+  location merger_declaration_location;
 
   /* The list.  */
   struct symbol_list *next;
@@ -64,7 +76,7 @@ symbol_list *symbol_list_prepend (symbol_list *l,
 void symbol_list_free (symbol_list *l);
 
 /* Return its length. */
-unsigned int symbol_list_length (const symbol_list *l);
+int symbol_list_length (symbol_list const *l);
 
 /* Get symbol N in symbol list L.  */
 symbol_list *symbol_list_n_get (symbol_list *l, int n);