Implement VisitHandlesInNewSpaceWithClassIds()

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index fe7198e3cbf59b35e8c251407ed3eba57ebcf0b9..ac5091edcafa59e6d6d40df764e49ea6dfc6bc80 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -3494,6 +3494,13 @@ class V8EXPORT V8 {
   static void VisitHandlesWithClassIds(PersistentHandleVisitor* visitor);
 
   /**
+   * Iterates through all the persistent handles in the new space of the current

[Michael Starzinger, 2013/01/17 09:57:42]

The API doesn't have a notion of generational garbage collection (except in
GCType) and I am hesitant toward adding it.

How about moving the promise of this function towards providing "candidates for
independence/partially dependence". This would make it clear that this list is
to be used in sync with MarkIndependent() and MarkPartiallyDependent(). To get
more concrete, here is my suggestion for a method name and comment:

/**
 * Iterates through all the persistent handles in the current isolate's heap
 * that have class_ids and are candidates to be marked as partially dependent
 * handles. This will visit handles to young objects created since the last
 * garbage collection but is free to visit an arbitrary superset of these
 * objects.
 */
static void VisitHandlesForPartialDependence(PersistentHandleVisitor* visitor);

+   * isolate's heap that have class_ids.
+   */
+  static void VisitHandlesInNewSpaceWithClassIds(
+      PersistentHandleVisitor* visitor);
+
+  /**
    * Optional notification that the embedder is idle.
    * V8 uses the notification to reduce memory footprint.
    * This call can be used repeatedly if the embedder remains idle.