// 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