sdk/lib/_internal/wasm/lib/object_helper.dart - sdk - Git at Google

 // Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.

 library dart._object_helper;

 // Access hidden identity hash code field.
 external int getIdentityHashField(Object obj);
 external void setIdentityHashField(Object obj, int hash);
	// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
	// for details. All rights reserved. Use of this source code is governed by a
	// BSD-style license that can be found in the LICENSE file.

	library dart._object_helper;

	// Access hidden identity hash code field.
	external int getIdentityHashField(Object obj);
	external void setIdentityHashField(Object obj, int hash);