// Copyright 2026 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.collect.nestedset;

/**
 * A marker interface for types for which {@link NestedSet} instances should be interned by
 * equality.
 *
 * <p>Types implementing this interface promise that their {@link Object#equals} implementation is
 * stable and safe for interning across different contexts (e.g. they are not mutable, they are
 * self-contained and don't contain references to objects unstable across serialization, etc).
 */
public interface NestedSetsShouldBeInternedByEquality {}
