// Copyright 2014 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.actions;

import com.google.devtools.build.skyframe.SkyKey;

/**
 * {@link SkyKey} for an {@link ActionLookupValue}.
 *
 * <p>All subclasses of {@link ActionLookupValue} "own" artifacts with {@link ArtifactOwner}s that
 * are subclasses of {@link ActionLookupKey}. This allows callers to easily find the value key,
 * while remaining agnostic to what action lookup values actually exist.
 */
public interface ActionLookupKey extends ArtifactOwner, SkyKey {}
