X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/f16b08196c780556cbf50691e2944960aebc46f6..c53b6848897960bc783afdbc230e1a247977d63d:/src/scan-code.h

diff --git a/src/scan-code.h b/src/scan-code.h
index a980b866..d5a15c1a 100644
--- a/src/scan-code.h
+++ b/src/scan-code.h
@@ -1,6 +1,6 @@
 /* Bison code properties structure and scanner.
 
-   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2006-2007, 2009-2013 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -21,6 +21,7 @@
 # define SCAN_CODE_H_
 
 # include "location.h"
+# include "named-ref.h"
 
 struct symbol_list;
 
@@ -44,7 +45,10 @@ typedef struct code_props {
     CODE_PROPS_SYMBOL_ACTION, CODE_PROPS_RULE_ACTION
   } kind;
 
-  /** \c NULL iff \c code_props::kind is \c CODE_PROPS_NONE.  */
+  /**
+   * \c NULL iff \c code_props::kind is \c CODE_PROPS_NONE.
+   * Memory is allocated in an obstack freed elsewhere.
+   */
   char const *code;
   /** Undefined iff \c code_props::code is \c NULL.  */
   location location;
@@ -62,8 +66,22 @@ typedef struct code_props {
    */
   bool is_value_used;
 
+  /**
+   * \c true iff this code is an action that is not to be deferred in
+   * a non-deterministic parser.
+   */
+  bool is_predicate;
+
+  /**
+   * Whether this is actually used (i.e., not completely masked by
+   * other code props).  */
+  bool is_used;
+
   /** \c NULL iff \c code_props::kind is not \c CODE_PROPS_RULE_ACTION.  */
   struct symbol_list *rule;
+
+  /* Named reference. */
+  named_ref *named_ref;
 } code_props;
 
 /**
@@ -75,11 +93,20 @@ typedef struct code_props {
 void code_props_none_init (code_props *self);
 
 /** Equivalent to \c code_props_none_init.  */
-#define CODE_PROPS_NONE_INIT \
-  {CODE_PROPS_NONE, NULL, EMPTY_LOCATION_INIT, false, NULL}
+# define CODE_PROPS_NONE_INIT                   \
+  {                                             \
+    /* .kind = */ CODE_PROPS_NONE,              \
+    /* .code = */ NULL,                         \
+    /* .location = */ EMPTY_LOCATION_INIT,      \
+    /* .is_value_used = */ false,               \
+    /* .is_predicate = */ false,                \
+    /* .is_used = */ false,                     \
+    /* .rule = */ NULL,                         \
+    /* .named_ref = */ NULL                     \
+  }
 
 /** Initialized by \c CODE_PROPS_NONE_INIT with no further modification.  */
-extern code_props const code_props_none;
+extern code_props code_props_none;
 
 /**
  * \pre
@@ -129,7 +156,8 @@ void code_props_symbol_action_init (code_props *self, char const *code,
  *     - The caller frees \c rule.
  */
 void code_props_rule_action_init (code_props *self, char const *code,
-                                  location code_loc, struct symbol_list *rule);
+                                  location code_loc, struct symbol_list *rule,
+                                  named_ref *name, bool is_predicate);
 
 /**
  * \pre