DataView implementation.

src/objects-visiting-inl.h

 // Copyright 2012 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 65 matching lines @@
   table_.Register(kVisitSeqOneByteString, &VisitSeqOneByteString);
 
   table_.Register(kVisitSeqTwoByteString, &VisitSeqTwoByteString);
 
   table_.Register(kVisitJSFunction, &VisitJSFunction);
 
   table_.Register(kVisitJSArrayBuffer, &VisitJSArrayBuffer);
 
   table_.Register(kVisitJSTypedArray, &VisitJSTypedArray);
 
+  table_.Register(kVisitJSDataView, &VisitJSDataView);
+
   table_.Register(kVisitFreeSpace, &VisitFreeSpace);
 
   table_.Register(kVisitJSWeakMap, &JSObjectVisitor::Visit);
 
   table_.Register(kVisitJSRegExp, &JSObjectVisitor::Visit);
 
   table_.template RegisterSpecializations<DataObjectVisitor,
                                           kVisitDataObject,
                                           kVisitDataObjectGeneric>();
 
   table_.template RegisterSpecializations<JSObjectVisitor,
                                           kVisitJSObject,
                                           kVisitJSObjectGeneric>();
   table_.template RegisterSpecializations<StructVisitor,
                                           kVisitStruct,
                                           kVisitStructGeneric>();
 }
 
 
 template<typename StaticVisitor>
 int StaticNewSpaceVisitor<StaticVisitor>::VisitJSArrayBuffer(
     Map* map, HeapObject* object) {
   Heap* heap = map->GetHeap();
 
   STATIC_ASSERT(
-      JSArrayBuffer::kWeakFirstArrayOffset ==
+      JSArrayBuffer::kWeakFirstViewOffset ==
       JSArrayBuffer::kWeakNextOffset + kPointerSize);
   VisitPointers(
       heap,
       HeapObject::RawField(object, JSArrayBuffer::BodyDescriptor::kStartOffset),
       HeapObject::RawField(object, JSArrayBuffer::kWeakNextOffset));
   VisitPointers(
       heap,
       HeapObject::RawField(object,
           JSArrayBuffer::kWeakNextOffset + 2 * kPointerSize),
       HeapObject::RawField(object, JSArrayBuffer::kSizeWithInternalFields));
@@ skipping 11 matching lines @@
   VisitPointers(
       map->GetHeap(),
       HeapObject::RawField(object,
           JSTypedArray::kWeakNextOffset + kPointerSize),
       HeapObject::RawField(object, JSTypedArray::kSize));
   return JSTypedArray::kSize;
 }
 
 
 template<typename StaticVisitor>
+int StaticNewSpaceVisitor<StaticVisitor>::VisitJSDataView(
+    Map* map, HeapObject* object) {
+  VisitPointers(
+      map->GetHeap(),
+      HeapObject::RawField(object, JSDataView::BodyDescriptor::kStartOffset),
+      HeapObject::RawField(object, JSDataView::kWeakNextOffset));
+  VisitPointers(
+      map->GetHeap(),
+      HeapObject::RawField(object,
+          JSDataView::kWeakNextOffset + kPointerSize),
+      HeapObject::RawField(object, JSDataView::kSize));
+  return JSDataView::kSize;
+}
+
+
+template<typename StaticVisitor>
 void StaticMarkingVisitor<StaticVisitor>::Initialize() {
   table_.Register(kVisitShortcutCandidate,
                   &FixedBodyVisitor<StaticVisitor,
                   ConsString::BodyDescriptor,
                   void>::Visit);
 
   table_.Register(kVisitConsString,
                   &FixedBodyVisitor<StaticVisitor,
                   ConsString::BodyDescriptor,
                   void>::Visit);
@@ skipping 34 matching lines @@
   table_.Register(kVisitCode, &VisitCode);
 
   table_.Register(kVisitSharedFunctionInfo, &VisitSharedFunctionInfo);
 
   table_.Register(kVisitJSFunction, &VisitJSFunction);
 
   table_.Register(kVisitJSArrayBuffer, &VisitJSArrayBuffer);
 
   table_.Register(kVisitJSTypedArray, &VisitJSTypedArray);
 
+  table_.Register(kVisitJSDataView, &VisitJSDataView);
+
   // Registration for kVisitJSRegExp is done by StaticVisitor.
 
   table_.Register(kVisitCell,
                   &FixedBodyVisitor<StaticVisitor,
                   Cell::BodyDescriptor,
                   void>::Visit);
 
   table_.Register(kVisitPropertyCell,
                   &FixedBodyVisitor<StaticVisitor,
                   PropertyCell::BodyDescriptor,
@@ skipping 242 matching lines @@
       HeapObject::RawField(object, last_property_offset));
 }
 
 
 template<typename StaticVisitor>
 void StaticMarkingVisitor<StaticVisitor>::VisitJSArrayBuffer(
     Map* map, HeapObject* object) {
   Heap* heap = map->GetHeap();
 
   STATIC_ASSERT(
-      JSArrayBuffer::kWeakFirstArrayOffset ==
+      JSArrayBuffer::kWeakFirstViewOffset ==
       JSArrayBuffer::kWeakNextOffset + kPointerSize);
   StaticVisitor::VisitPointers(
       heap,
       HeapObject::RawField(object, JSArrayBuffer::BodyDescriptor::kStartOffset),
       HeapObject::RawField(object, JSArrayBuffer::kWeakNextOffset));
   StaticVisitor::VisitPointers(
       heap,
       HeapObject::RawField(object,
           JSArrayBuffer::kWeakNextOffset + 2 * kPointerSize),
       HeapObject::RawField(object, JSArrayBuffer::kSizeWithInternalFields));
 }
 
 
 template<typename StaticVisitor>
 void StaticMarkingVisitor<StaticVisitor>::VisitJSTypedArray(
     Map* map, HeapObject* object) {
   StaticVisitor::VisitPointers(
       map->GetHeap(),
       HeapObject::RawField(object, JSTypedArray::BodyDescriptor::kStartOffset),
       HeapObject::RawField(object, JSTypedArray::kWeakNextOffset));
   StaticVisitor::VisitPointers(
       map->GetHeap(),
       HeapObject::RawField(object,
         JSTypedArray::kWeakNextOffset + kPointerSize),
       HeapObject::RawField(object, JSTypedArray::kSize));
 }
 
 
 template<typename StaticVisitor>
+void StaticMarkingVisitor<StaticVisitor>::VisitJSDataView(
+    Map* map, HeapObject* object) {
+  StaticVisitor::VisitPointers(
+      map->GetHeap(),
+      HeapObject::RawField(object, JSDataView::BodyDescriptor::kStartOffset),
+      HeapObject::RawField(object, JSDataView::kWeakNextOffset));
+  StaticVisitor::VisitPointers(
+      map->GetHeap(),
+      HeapObject::RawField(object,
+        JSDataView::kWeakNextOffset + kPointerSize),
+      HeapObject::RawField(object, JSDataView::kSize));
+}
+
+
+template<typename StaticVisitor>
 void StaticMarkingVisitor<StaticVisitor>::MarkMapContents(
     Heap* heap, Map* map) {
   // Make sure that the back pointer stored either in the map itself or
   // inside its transitions array is marked. Skip recording the back
   // pointer slot since map space is not compacted.
   StaticVisitor::MarkObject(heap, HeapObject::cast(map->GetBackPointer()));
 
   // Treat pointers in the transitions array as weak and also mark that
   // array to prevent visiting it later. Skip recording the transition
   // array slot, since it will be implicitly recorded when the pointer
@@ skipping 318 matching lines @@
   RelocIterator it(this, mode_mask);
   for (; !it.done(); it.next()) {
     it.rinfo()->template Visit<StaticVisitor>(heap);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_INL_H_