[heap] Introduce enum of garbage collection reasons.

test/cctest/test-weakmaps.cc

 // Copyright 2011 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 58 matching lines @@
   NumberOfWeakCalls++;
   p->first->Reset();
 }
 
 
 TEST(Weakness) {
   FLAG_incremental_marking = false;
   LocalContext context;
   Isolate* isolate = GetIsolateFrom(&context);
   Factory* factory = isolate->factory();
-  Heap* heap = isolate->heap();
   HandleScope scope(isolate);
   Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate);
   GlobalHandles* global_handles = isolate->global_handles();
 
   // Keep global reference to the key.
   Handle<Object> key;
   {
     HandleScope scope(isolate);
     Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
     Handle<JSObject> object = factory->NewJSObjectFromMap(map);
     key = global_handles->Create(*object);
   }
   CHECK(!global_handles->IsWeak(key.location()));
 
   // Put two chained entries into weak map.
   {
     HandleScope scope(isolate);
     Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
     Handle<JSObject> object = factory->NewJSObjectFromMap(map);
     Handle<Smi> smi(Smi::FromInt(23), isolate);
     int32_t hash = Object::GetOrCreateHash(isolate, key)->value();
     JSWeakCollection::Set(weakmap, key, object, hash);
     int32_t object_hash = Object::GetOrCreateHash(isolate, object)->value();
     JSWeakCollection::Set(weakmap, object, smi, object_hash);
   }
   CHECK_EQ(2, ObjectHashTable::cast(weakmap->table())->NumberOfElements());
 
   // Force a full GC.
-  heap->CollectAllGarbage(false);
+  CcTest::CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
   CHECK_EQ(0, NumberOfWeakCalls);
   CHECK_EQ(2, ObjectHashTable::cast(weakmap->table())->NumberOfElements());
   CHECK_EQ(
       0, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements());
 
   // Make the global reference to the key weak.
   {
     HandleScope scope(isolate);
     std::pair<Handle<Object>*, int> handle_and_id(&key, 1234);
     GlobalHandles::MakeWeak(
         key.location(), reinterpret_cast<void*>(&handle_and_id),
         &WeakPointerCallback, v8::WeakCallbackType::kParameter);
   }
   CHECK(global_handles->IsWeak(key.location()));
 
-  heap->CollectAllGarbage(false);
+  CcTest::CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
   CHECK_EQ(1, NumberOfWeakCalls);
   CHECK_EQ(0, ObjectHashTable::cast(weakmap->table())->NumberOfElements());
   CHECK_EQ(2,
            ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements());
 }
 
 
 TEST(Shrinking) {
   LocalContext context;
   Isolate* isolate = GetIsolateFrom(&context);
   Factory* factory = isolate->factory();
-  Heap* heap = isolate->heap();
   HandleScope scope(isolate);
   Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate);
 
   // Check initial capacity.
   CHECK_EQ(32, ObjectHashTable::cast(weakmap->table())->Capacity());
 
   // Fill up weak map to trigger capacity change.
   {
     HandleScope scope(isolate);
     Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
     for (int i = 0; i < 32; i++) {
       Handle<JSObject> object = factory->NewJSObjectFromMap(map);
       Handle<Smi> smi(Smi::FromInt(i), isolate);
       int32_t object_hash = Object::GetOrCreateHash(isolate, object)->value();
       JSWeakCollection::Set(weakmap, object, smi, object_hash);
     }
   }
 
   // Check increased capacity.
   CHECK_EQ(128, ObjectHashTable::cast(weakmap->table())->Capacity());
 
   // Force a full GC.
   CHECK_EQ(32, ObjectHashTable::cast(weakmap->table())->NumberOfElements());
   CHECK_EQ(
       0, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements());
-  heap->CollectAllGarbage(false);
+  CcTest::CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
   CHECK_EQ(0, ObjectHashTable::cast(weakmap->table())->NumberOfElements());
   CHECK_EQ(
       32, ObjectHashTable::cast(weakmap->table())->NumberOfDeletedElements());
 
   // Check shrunk capacity.
   CHECK_EQ(32, ObjectHashTable::cast(weakmap->table())->Capacity());
 }
 
 
 // Test that weak map values on an evacuation candidate which are not reachable
@@ skipping 22 matching lines @@
       Handle<JSObject> object = factory->NewJSObject(function, TENURED);
       CHECK(!heap->InNewSpace(*object));
       CHECK(!first_page->Contains(object->address()));
       int32_t hash = Object::GetOrCreateHash(isolate, key)->value();
       JSWeakCollection::Set(weakmap, key, object, hash);
     }
   }
 
   // Force compacting garbage collection.
   CHECK(FLAG_always_compact);
-  heap->CollectAllGarbage();
+  CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
 }
 
 
 // Test that weak map keys on an evacuation candidate which are reachable by
 // other strong paths are correctly recorded in the slots buffer.
 TEST(Regress2060b) {
   if (i::FLAG_never_compact) return;
   FLAG_always_compact = true;
 #ifdef VERIFY_HEAP
   FLAG_verify_heap = true;
@@ skipping 21 matching lines @@
   Handle<JSWeakMap> weakmap = AllocateJSWeakMap(isolate);
   for (int i = 0; i < 32; i++) {
     Handle<Smi> smi(Smi::FromInt(i), isolate);
     int32_t hash = Object::GetOrCreateHash(isolate, keys[i])->value();
     JSWeakCollection::Set(weakmap, keys[i], smi, hash);
   }
 
   // Force compacting garbage collection. The subsequent collections are used
   // to verify that key references were actually updated.
   CHECK(FLAG_always_compact);
-  heap->CollectAllGarbage();
-  heap->CollectAllGarbage();
-  heap->CollectAllGarbage();
+  CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
+  CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
+  CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
 }
 
 
 TEST(Regress399527) {
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
   Isolate* isolate = CcTest::i_isolate();
   Heap* heap = isolate->heap();
   {
     HandleScope scope(isolate);
     AllocateJSWeakMap(isolate);
     heap::SimulateIncrementalMarking(heap);
   }
   // The weak map is marked black here but leaving the handle scope will make
   // the object unreachable. Aborting incremental marking will clear all the
   // marking bits which makes the weak map garbage.
-  heap->CollectAllGarbage();
+  CcTest::CollectAllGarbage(i::Heap::kFinalizeIncrementalMarkingMask);
 }