Lazy peer API.

runtime/vm/heap.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/heap.h"
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/compiler_stats.h"
 #include "vm/flags.h"
@@ skipping 344 matching lines @@
       return "debugging";
     case kGCTestCase:
       return "test case";
     default:
       UNREACHABLE();
       return "";
   }
 }
 
 
+void Heap::SetPeer(RawObject* raw_obj, void* peer) {
+  if (raw_obj->IsNewObject()) {
+    new_space_->SetPeer(raw_obj, peer);
+  } else {
+    ASSERT(raw_obj->IsOldObject());
+    old_space_->SetPeer(raw_obj, peer);
+  }
+}
+
+
+void* Heap::GetPeer(RawObject* raw_obj) {
+  if (raw_obj->IsNewObject()) {
+    return new_space_->GetPeer(raw_obj);
+  }
+  ASSERT(raw_obj->IsOldObject());
+  return old_space_->GetPeer(raw_obj);
+}
+
+
+int64_t Heap::PeerCount() const {
+  return new_space_->PeerCount() + old_space_->PeerCount();
+}
+
+
 #if defined(DEBUG)
 NoGCScope::NoGCScope() : StackResource(Isolate::Current()) {
   isolate()->IncrementNoGCScopeDepth();
 }
 
 
 NoGCScope::~NoGCScope() {
   isolate()->DecrementNoGCScopeDepth();
 }
 #endif  // defined(DEBUG)
 
 }  // namespace dart