Key external array map transitions on ElementsKind instead of ExternalArrayType

src/api.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 3247 matching lines @@
     return true;
   }
   i::Handle<i::JSObject> js_obj(i::JSObject::cast(*hidden_props));
   i::Handle<i::String> key_obj = Utils::OpenHandle(*key);
   return i::DeleteProperty(js_obj, key_obj)->IsTrue();
 }
 
 
 namespace {
 
+static i::ElementsKind GetElementsKindFromExternalArrayType(
+    ExternalArrayType array_type) {
+  switch (array_type) {
+    case kExternalByteArray:
+      return i::EXTERNAL_BYTE_ELEMENTS;
+      break;
+    case kExternalUnsignedByteArray:
+      return i::EXTERNAL_UNSIGNED_BYTE_ELEMENTS;
+      break;
+    case kExternalShortArray:
+      return i::EXTERNAL_SHORT_ELEMENTS;
+      break;
+    case kExternalUnsignedShortArray:
+      return i::EXTERNAL_UNSIGNED_SHORT_ELEMENTS;
+      break;
+    case kExternalIntArray:
+      return i::EXTERNAL_INT_ELEMENTS;
+      break;
+    case kExternalUnsignedIntArray:
+      return i::EXTERNAL_UNSIGNED_INT_ELEMENTS;
+      break;
+    case kExternalFloatArray:
+      return i::EXTERNAL_FLOAT_ELEMENTS;
+      break;
+    case kExternalDoubleArray:
+      return i::EXTERNAL_DOUBLE_ELEMENTS;
+      break;
+    case kExternalPixelArray:
+      return i::EXTERNAL_PIXEL_ELEMENTS;
+      break;
+  }
+  UNREACHABLE();
+  return i::DICTIONARY_ELEMENTS;
+}
+
+
 void PrepareExternalArrayElements(i::Handle<i::JSObject> object,
                                   void* data,
                                   ExternalArrayType array_type,
                                   int length) {
   i::Isolate* isolate = object->GetIsolate();
   i::Handle<i::ExternalArray> array =
       isolate->factory()->NewExternalArray(length, array_type, data);
 
   // If the object already has external elements, create a new, unique
   // map if the element type is now changing, because assumptions about
   // generated code based on the receiver's map will be invalid.
   i::Handle<i::HeapObject> elements(object->elements());
   bool cant_reuse_map =
       elements->map()->IsUndefined() ||
       !elements->map()->has_external_array_elements() ||
       elements->map() != isolate->heap()->MapForExternalArrayType(array_type);
   if (cant_reuse_map) {
     i::Handle<i::Map> external_array_map =
-        isolate->factory()->GetExternalArrayElementsMap(
+        isolate->factory()->GetElementsTransitionMap(
             i::Handle<i::Map>(object->map()),
-            array_type,
+            GetElementsKindFromExternalArrayType(array_type),
             object->HasFastProperties());
     object->set_map(*external_array_map);
   }
   object->set_elements(*array);
 }
 
 }  // namespace
 
 
 void v8::Object::SetIndexedPropertiesToPixelData(uint8_t* data, int length) {
@@ skipping 41 matching lines @@
   i::Handle<i::JSObject> self = Utils::OpenHandle(this);
   ON_BAILOUT(self->GetIsolate(), "v8::GetIndexedPropertiesPixelDataLength()",
              return -1);
   if (self->HasExternalPixelElements()) {
     return i::ExternalPixelArray::cast(self->elements())->length();
   } else {
     return -1;
   }
 }
 
+
 void v8::Object::SetIndexedPropertiesToExternalArrayData(
     void* data,
     ExternalArrayType array_type,
     int length) {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   ON_BAILOUT(isolate, "v8::SetIndexedPropertiesToExternalArrayData()", return);
   ENTER_V8(isolate);
   i::HandleScope scope(isolate);
   if (!ApiCheck(length <= i::ExternalArray::kMaxLength,
                 "v8::Object::SetIndexedPropertiesToExternalArrayData()",
@@ skipping 2678 matching lines @@
 
 
 char* HandleScopeImplementer::Iterate(ObjectVisitor* v, char* storage) {
   HandleScopeImplementer* scope_implementer =
       reinterpret_cast<HandleScopeImplementer*>(storage);
   scope_implementer->IterateThis(v);
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal