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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.Objects;
import com.google.common.base.Preconditions;
import com.google.devtools.build.lib.actions.Action;
import com.google.devtools.build.lib.analysis.Aspect;
import com.google.devtools.build.lib.analysis.AspectWithParameters;
import com.google.devtools.build.lib.analysis.ConfiguredAspectFactory;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.events.Location;
import com.google.devtools.build.lib.packages.AspectParameters;
import com.google.devtools.build.lib.packages.Package;
import com.google.devtools.build.skyframe.SkyFunctionName;
import com.google.devtools.build.skyframe.SkyKey;
import javax.annotation.Nullable;
/**
* An aspect in the context of the Skyframe graph.
*/
public final class AspectValue extends ActionLookupValue {
/**
* The key of an action that is generated by an aspect.
*/
public static final class AspectKey extends ActionLookupKey {
private final Label label;
private final BuildConfiguration configuration;
private final AspectWithParameters aspect;
private AspectKey(Label label, BuildConfiguration configuration,
Class<? extends ConfiguredAspectFactory> aspectFactory,
AspectParameters parameters) {
Preconditions.checkNotNull(parameters);
this.label = label;
this.configuration = configuration;
this.aspect = new AspectWithParameters(aspectFactory, parameters);
}
@Override
public Label getLabel() {
return label;
}
public BuildConfiguration getConfiguration() {
return configuration;
}
public Class<? extends ConfiguredAspectFactory> getAspect() {
return aspect.getAspectFactory();
}
@Nullable
public AspectParameters getParameters() {
return aspect.getParameters();
}
@Override
SkyFunctionName getType() {
return SkyFunctions.ASPECT;
}
@Override
public int hashCode() {
return Objects.hashCode(label, configuration, aspect);
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof AspectKey)) {
return false;
}
AspectKey that = (AspectKey) other;
return Objects.equal(label, that.label)
&& Objects.equal(configuration, that.configuration)
&& Objects.equal(aspect, that.aspect);
}
@Override
public String toString() {
return label + "#" + aspect.getAspectFactory().getSimpleName() + " "
+ (configuration == null ? "null" : configuration.checksum()) + " "
+ aspect.getParameters();
}
}
private final Label label;
private final Location location;
private final AspectKey key;
private final Aspect aspect;
private final NestedSet<Package> transitivePackages;
public AspectValue(
AspectKey key, Label label, Location location, Aspect aspect, Iterable<Action> actions,
NestedSet<Package> transitivePackages) {
super(actions);
this.location = location;
this.label = label;
this.key = key;
this.aspect = aspect;
this.transitivePackages = transitivePackages;
}
public Aspect getAspect() {
return aspect;
}
public Label getLabel() {
return label;
}
public Location getLocation() {
return location;
}
public AspectKey getKey() {
return key;
}
public NestedSet<Package> getTransitivePackages() {
return transitivePackages;
}
public static SkyKey key(Label label, BuildConfiguration configuration,
Class<? extends ConfiguredAspectFactory> aspectFactory,
AspectParameters additionalConfiguration) {
return new SkyKey(SkyFunctions.ASPECT,
new AspectKey(label, configuration, aspectFactory, additionalConfiguration));
}
public static SkyKey key(AspectKey aspectKey) {
return new SkyKey(SkyFunctions.ASPECT, aspectKey);
}
public static AspectKey createAspectKey(
Label label,
BuildConfiguration configuration,
Class<? extends ConfiguredAspectFactory> aspectFactory) {
return new AspectKey(label, configuration, aspectFactory, AspectParameters.EMPTY);
}
}
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