| // Copyright 2024 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.common.base.Preconditions; |
| import com.google.devtools.build.lib.analysis.ConfiguredTarget; |
| import com.google.devtools.build.lib.analysis.ConfiguredTargetValue; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.packages.Package; |
| import javax.annotation.Nullable; |
| |
| /** Common base class for configured target values for rules and non-rules. */ |
| abstract class BaseRuleConfiguredTargetValue<T extends ConfiguredTarget> |
| implements ConfiguredTargetValue { |
| // This variable is non-final because it may be clear()ed to save memory. It is null only after |
| // clear(true) is called. |
| @Nullable private T configuredTarget; |
| |
| // May be null after clearing; because transitive packages are not tracked; or after |
| // deserialization. |
| @Nullable private transient NestedSet<Package> transitivePackages; |
| |
| BaseRuleConfiguredTargetValue( |
| T configuredTarget, @Nullable NestedSet<Package> transitivePackages) { |
| this.configuredTarget = Preconditions.checkNotNull(configuredTarget); |
| this.transitivePackages = transitivePackages; |
| } |
| |
| @Nullable // May be null after clearing. |
| @Override |
| public T getConfiguredTarget() { |
| return configuredTarget; |
| } |
| |
| @Nullable |
| @Override |
| public NestedSet<Package> getTransitivePackages() { |
| return transitivePackages; |
| } |
| |
| @Override |
| public boolean isCleared() { |
| return this.configuredTarget == null; |
| } |
| |
| @Override |
| public void clear(boolean clearEverything) { |
| if (clearEverything) { |
| this.configuredTarget = null; |
| } |
| this.transitivePackages = null; |
| } |
| } |