// Copyright 2020 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.skyframe;

import com.google.devtools.build.lib.actions.ActionLookupValue;
import com.google.devtools.build.lib.analysis.ProviderCollection;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.packages.Package;
import com.google.devtools.build.skyframe.NotComparableSkyValue;

/** Super-interface for {@link ConfiguredTargetValue} and {@link AspectValue}. */
interface ConfiguredObjectValue extends ActionLookupValue, NotComparableSkyValue {
  /** Returns the configured target/aspect for this value. */
  ProviderCollection getConfiguredObject();

  /**
   * Returns the set of packages transitively loaded by this value. Must only be used for
   * constructing the package -> source root map needed for some builds. If the caller has not
   * specified that this map needs to be constructed (via the constructor argument in {@link
   * ConfiguredTargetFunction#ConfiguredTargetFunction} or {@link AspectFunction#AspectFunction}),
   * calling this will crash.
   */
  NestedSet<Package> getTransitivePackagesForPackageRootResolution();

  /**
   * Clears provider data from this value, leaving only the artifact->generating action map.
   *
   * <p>Should only be used when user specifies --discard_analysis_cache. Must be called at most
   * once per value, after which {@link #getConfiguredObject} and {@link #getActions} cannot be
   * called.
   */
  void clear(boolean clearEverything);
}