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// Copyright 2020 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/runtime/runtime-utils.h"
#include "src/execution/arguments-inl.h"
#include "src/objects/js-weak-refs-inl.h"
namespace v8 {
namespace internal {
RUNTIME_FUNCTION(Runtime_ShrinkFinalizationRegistryUnregisterTokenMap) {
HandleScope scope(isolate);
DCHECK_EQ(1, args.length());
CONVERT_ARG_HANDLE_CHECKED(JSFinalizationRegistry, finalization_registry, 0);
if (!finalization_registry->key_map().IsUndefined(isolate)) {
Handle<SimpleNumberDictionary> key_map =
handle(SimpleNumberDictionary::cast(finalization_registry->key_map()),
isolate);
key_map = SimpleNumberDictionary::Shrink(isolate, key_map);
finalization_registry->set_key_map(*key_map);
}
return ReadOnlyRoots(isolate).undefined_value();
}
} // namespace internal
} // namespace v8
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