introduce eternal handles

test/cctest/test-global-handles.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 297 matching lines @@
   ASSERT(implicit_refs->at(0)->parent ==
          reinterpret_cast<HeapObject**>(g1s1.location()));
   ASSERT(implicit_refs->at(0)->length == 2);
   ASSERT(implicit_refs->at(0)->children[0] == g1c1.location());
   ASSERT(implicit_refs->at(0)->children[1] == g1c2.location());
   ASSERT(implicit_refs->at(1)->parent ==
          reinterpret_cast<HeapObject**>(g2s1.location()));
   ASSERT(implicit_refs->at(1)->length == 1);
   ASSERT(implicit_refs->at(1)->children[0] == g2c1.location());
 }
+
+
+TEST(EternalHandles) {
+  CcTest::InitializeVM();
+  Isolate* isolate = Isolate::Current();
+  v8::Isolate* v8_isolate = reinterpret_cast<v8::Isolate*>(isolate);
+  EternalHandles* eternals = isolate->eternal_handles();
+
+  // Create a number of handles that will not be on a block boundary
+  const int kArrayLength = 2048-1;
+  int indices[kArrayLength];
+
+  CHECK_EQ(0, eternals->NumberOfHandles());
+  for (int i = 0; i < kArrayLength; i++) {
+    HandleScope scope(isolate);
+    v8::Handle<v8::Object> object = v8::Object::New();
+    object->Set(i, v8::Integer::New(i, v8_isolate));
+    indices[i] = eternals->Create(isolate, *v8::Utils::OpenHandle(*object));
+  }
+
+  isolate->heap()->CollectAllAvailableGarbage();
+
+  for (int i = 0; i < kArrayLength; i++) {
+    HandleScope scope(isolate);
+    v8::Handle<v8::Value> local = v8::Utils::ToLocal(eternals->Get(i));
+    v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(local);
+    v8::Handle<v8::Value> value = object->Get(i);
+    CHECK(value->IsInt32());
+    CHECK_EQ(i, value->Int32Value());
+  }
+
+  CHECK_EQ(kArrayLength, eternals->NumberOfHandles());
+}