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// 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.skyframe;
import com.google.common.base.MoreObjects;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.ActionAnalysisMetadata;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.ConfiguredTargetValue;
import com.google.devtools.build.lib.analysis.RuleConfiguredObjectValue;
import com.google.devtools.build.lib.analysis.configuredtargets.RuleConfiguredTarget;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
import com.google.devtools.build.lib.packages.Package;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import javax.annotation.Nullable;
/** A configured target in the context of a Skyframe graph. */
@Immutable
@ThreadSafe
@AutoCodec(explicitlyAllowClass = RuleConfiguredTarget.class)
public final class RuleConfiguredTargetValue
implements RuleConfiguredObjectValue, 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 RuleConfiguredTarget configuredTarget;
private final ImmutableList<ActionAnalysisMetadata> actions;
// May be null either after clearing or because transitive packages are not tracked.
@Nullable private NestedSet<Package> transitivePackages;
// Transitive packages are not serialized.
@AutoCodec.Instantiator
RuleConfiguredTargetValue(RuleConfiguredTarget configuredTarget) {
this(configuredTarget, /*transitivePackages=*/ null);
}
public RuleConfiguredTargetValue(
RuleConfiguredTarget configuredTarget, @Nullable NestedSet<Package> transitivePackages) {
this.configuredTarget = Preconditions.checkNotNull(configuredTarget);
this.transitivePackages = transitivePackages;
// These are specifically *not* copied to save memory.
this.actions = configuredTarget.getActions();
}
@Override
public ConfiguredTarget getConfiguredTarget() {
Preconditions.checkNotNull(configuredTarget);
return configuredTarget;
}
@Override
public ImmutableList<ActionAnalysisMetadata> getActions() {
return actions;
}
@Nullable
@Override
public NestedSet<Package> getTransitivePackages() {
return transitivePackages;
}
@Override
public void clear(boolean clearEverything) {
Preconditions.checkNotNull(configuredTarget);
if (clearEverything) {
configuredTarget = null;
}
transitivePackages = null;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(this)
.add("actions", actions)
.add("configuredTarget", configuredTarget)
.toString();
}
}