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// Copyright 2015 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.query2.output;
import com.google.common.collect.ImmutableMultimap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.LinkedHashMultimap;
import com.google.common.collect.Multimap;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.packages.AspectDefinition;
import com.google.devtools.build.lib.packages.AspectFactory;
import com.google.devtools.build.lib.packages.Attribute;
import com.google.devtools.build.lib.packages.Rule;
import com.google.devtools.build.lib.packages.Target;
import java.util.Set;
/**
* An aspect resolver that overestimates the required aspect dependencies.
*
* <p>Does not need to load any packages other than the one containing the target being processed.
*/
public class ConservativeAspectResolver implements AspectResolver {
@Override
public ImmutableMultimap<Attribute, Label> computeAspectDependencies(Target target)
throws InterruptedException {
if (!(target instanceof Rule)) {
return ImmutableMultimap.of();
}
Multimap<Attribute, Label> result = LinkedHashMultimap.create();
for (Attribute attribute : ((Rule) target).getAttributes()) {
for (Class<? extends AspectFactory<?, ?, ?>> aspectFactory : attribute.getAspects()) {
AspectDefinition.addAllAttributesOfAspect(
(Rule) target,
result,
AspectFactory.Util.create(aspectFactory).getDefinition(),
Rule.ALL_DEPS);
}
}
return ImmutableMultimap.copyOf(result);
}
@Override
public Set<Label> computeBuildFileDependencies(com.google.devtools.build.lib.packages.Package pkg,
BuildFileDependencyMode mode) throws InterruptedException {
// We do a conservative estimate precisely so that we don't depend on any other BUILD files.
return ImmutableSet.copyOf(mode.getDependencies(pkg));
}
}
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