Oilpan: support eager finalization/sweeping.

Source/platform/heap/HeapTest.cpp

 /*
  * Copyright (C) 2013 Google Inc. 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
@@ skipping 1849 matching lines @@
         EXPECT_EQ(i + 1, LargeHeapObject::s_destructorCalls);
     }
     LargeHeapObject::create();
     LargeHeapObject::create();
     EXPECT_EQ(10, LargeHeapObject::s_destructorCalls);
     Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::GCWithoutSweep, Heap::ForcedGC);
     EXPECT_EQ(10, LargeHeapObject::s_destructorCalls);
     Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::GCWithSweep, Heap::ForcedGC);
     EXPECT_EQ(22, LargeHeapObject::s_destructorCalls);
 }
+
+class SimpleFinalizedEagerObjectBase : public GarbageCollectedFinalized<SimpleFinalizedEagerObjectBase> {
+public:
+    virtual ~SimpleFinalizedEagerObjectBase() { }
+    DEFINE_INLINE_TRACE() { }
+protected:
+    SimpleFinalizedEagerObjectBase() { }
+};
+
+class SimpleFinalizedEagerObject : public SimpleFinalizedEagerObjectBase {
+public:
+    static SimpleFinalizedEagerObject* create()
+    {
+        return new SimpleFinalizedEagerObject();
+    }
+
+    virtual ~SimpleFinalizedEagerObject()
+    {
+        ++s_destructorCalls;
+    }
+
+    static int s_destructorCalls;
+private:
+    SimpleFinalizedEagerObject() { }
+};
+
+int SimpleFinalizedEagerObject::s_destructorCalls = 0;
+
+EAGERLY_SWEEP(SimpleFinalizedEagerObjectBase);
+
+TEST(HeapTest, EagerlySweepingPages)
+{
+    clearOutOldGarbage();
+
+    SimpleFinalizedObject::s_destructorCalls = 0;
+    SimpleFinalizedEagerObject::s_destructorCalls = 0;
+    EXPECT_EQ(0, SimpleFinalizedObject::s_destructorCalls);
+    EXPECT_EQ(0, SimpleFinalizedEagerObject::s_destructorCalls);
+    for (int i = 0; i < 1000; i++)
+        SimpleFinalizedObject::create();
+    for (int i = 0; i < 100; i++)
+        SimpleFinalizedEagerObject::create();
+    Heap::collectGarbage(ThreadState::NoHeapPointersOnStack, ThreadState::GCWithoutSweep, Heap::ForcedGC);
+    EXPECT_EQ(0, SimpleFinalizedObject::s_destructorCalls);
+    EXPECT_EQ(100, SimpleFinalizedEagerObject::s_destructorCalls);
+}
 #endif
 
 TEST(HeapTest, Finalization)
 {
     {
         HeapTestSubClass* t1 = HeapTestSubClass::create();
         HeapTestSubClass* t2 = HeapTestSubClass::create();
         HeapTestSuperClass* t3 = HeapTestSuperClass::create();
         // FIXME(oilpan): Ignore unused variables.
         (void)t1;
@@ skipping 4152 matching lines @@
 {
     Persistent<ClassWithMember> object = ClassWithMember::create();
     EXPECT_EQ(0, object->traceCount());
     TestMixinAllocatingObject* mixin = TestMixinAllocatingObject::create(object.get());
     EXPECT_TRUE(mixin);
     EXPECT_GT(object->traceCount(), 0);
     EXPECT_GT(mixin->traceCount(), 0);
 }
 
 } // namespace blink