Safer interface for heap iteration.

runtime/vm/object.cc

 // 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.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 858 matching lines @@
   // pre-allocated in the vm isolate also.
   cls = isolate->object_store()->array_class();
   cls.set_name(Symbols::_List());
   cls = isolate->object_store()->one_byte_string_class();
   cls.set_name(Symbols::OneByteString());
 
   // Make the VM isolate read-only after setting all objects as marked.
   PremarkingVisitor premarker(isolate);
   isolate->heap()->WriteProtect(false);
   ASSERT(isolate->heap()->UsedInWords(Heap::kNew) == 0);
-  isolate->heap()->old_space()->VisitObjects(&premarker);
+  isolate->heap()->IterateOldObjects(&premarker);
   isolate->heap()->WriteProtect(true);
 }
 
 
 void Object::InitVmIsolateSnapshotObjectTable(intptr_t len) {
   ASSERT(Isolate::Current() == Dart::vm_isolate());
   *vm_isolate_snapshot_object_table_ = Array::New(len, Heap::kOld);
 }
 
 
@@ skipping 20284 matching lines @@
   return tag_label.ToCString();
 }
 
 
 void UserTag::PrintJSONImpl(JSONStream* stream, bool ref) const {
   Instance::PrintJSONImpl(stream, ref);
 }
 
 
 }  // namespace dart