- Start using the collected store buffer entries to find

vm/scavenger.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_SCAVENGER_H_
 #define VM_SCAVENGER_H_
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/flags.h"
 #include "vm/globals.h"
 #include "vm/raw_object.h"
 #include "vm/virtual_memory.h"
 #include "vm/visitor.h"
 
 namespace dart {
 
 // Forward declarations.
 class Heap;
 class Isolate;
+class ScavengerVisitor;
 
 DECLARE_FLAG(bool, gc_at_alloc);
 
 class Scavenger {
  public:
   Scavenger(Heap* heap, intptr_t max_capacity, uword object_alignment);
   ~Scavenger();
 
   // Check whether this Scavenger contains this address.
   // During scavenging both the to and from spaces contain "legal" objects.
@@ skipping 50 matching lines @@
 
   // Returns true if the last scavenge had a promotion failure.
   bool HadPromotionFailure() {
     return had_promotion_failure_;
   }
 
  private:
   uword FirstObjectStart() const { return to_->start() | object_alignment_; }
   void Prologue(Isolate* isolate, bool invoke_api_callbacks);
   void IterateRoots(Isolate* isolate,
-                    ObjectPointerVisitor* visitor,
+                    ScavengerVisitor* visitor,
                     bool visit_prologue_weak_persistent_handles);
-  void IterateWeakReferences(Isolate* isolate, ObjectPointerVisitor* visitor);
+  void IterateWeakReferences(Isolate* isolate, ScavengerVisitor* visitor);
   void IterateWeakRoots(Isolate* isolate,
                         HandleVisitor* visitor,
                         bool visit_prologue_weak_persistent_handles);
-  void ProcessToSpace(ObjectPointerVisitor* visitor);
+  void ProcessToSpace(ScavengerVisitor* visitor);
   void Epilogue(Isolate* isolate, bool invoke_api_callbacks);
 
   bool IsUnreachable(RawObject** p);
 
   // During a scavenge we need to remember the promoted objects.
   // This is implemented as a stack of objects at the end of the to space. As
   // object sizes are always greater than sizeof(uword) and promoted objects do
   // not consume space in the to space they leave enough room for this stack.
   void PushToPromotedStack(uword addr) {
     end_ -= sizeof(addr);
@@ skipping 40 matching lines @@
 
   friend class ScavengerVisitor;
   friend class ScavengerWeakVisitor;
 
   DISALLOW_COPY_AND_ASSIGN(Scavenger);
 };
 
 }  // namespace dart
 
 #endif  // VM_SCAVENGER_H_