Export the current data format version used by ValueSerializer.

src/value-serializer.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/value-serializer.h"
 
 #include <type_traits>
 
 #include "src/base/logging.h"
 #include "src/conversions.h"
@@ skipping 136 matching lines @@
   kFloat64Array = 'F',
   kDataView = '?',
 };
 
 enum class WasmEncodingTag : uint8_t {
   kRawBytes = 'y',
 };
 
 }  // namespace
 
+// static
+uint32_t ValueSerializer::GetCurrentDataFormatVersion() {
+  return kLatestVersion;
+}
+
 ValueSerializer::ValueSerializer(Isolate* isolate,
                                  v8::ValueSerializer::Delegate* delegate)
     : isolate_(isolate),
       delegate_(delegate),
       zone_(isolate->allocator(), ZONE_NAME),
       id_map_(isolate->heap(), ZoneAllocationPolicy(&zone_)),
       array_buffer_transfer_map_(isolate->heap(),
                                  ZoneAllocationPolicy(&zone_)) {}
 
 ValueSerializer::~ValueSerializer() {
@@ skipping 1842 matching lines @@
   if (stack.size() != 1) {
     isolate_->Throw(*isolate_->factory()->NewError(
         MessageTemplate::kDataCloneDeserializationError));
     return MaybeHandle<Object>();
   }
   return scope.CloseAndEscape(stack[0]);
 }
 
 }  // namespace internal
 }  // namespace v8