| // 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.query.aspectresolvers; |
| |
| 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.Aspect; |
| import com.google.devtools.build.lib.packages.AspectDefinition; |
| import com.google.devtools.build.lib.packages.Attribute; |
| import com.google.devtools.build.lib.packages.DependencyFilter; |
| import com.google.devtools.build.lib.packages.Package; |
| 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, DependencyFilter dependencyFilter) { |
| if (!(target instanceof Rule)) { |
| return ImmutableMultimap.of(); |
| } |
| Rule rule = (Rule) target; |
| if (!rule.hasAspects()) { |
| return ImmutableMultimap.of(); |
| } |
| |
| Multimap<Attribute, Label> result = LinkedHashMultimap.create(); |
| for (Attribute attribute : rule.getAttributes()) { |
| for (Aspect aspect : attribute.getAspects(rule)) { |
| AspectDefinition.addAllAttributesOfAspect( |
| rule, result, aspect, dependencyFilter); |
| } |
| } |
| |
| return ImmutableMultimap.copyOf(result); |
| } |
| |
| @Override |
| public Set<Label> computeBuildFileDependencies(Package pkg) { |
| // We do a conservative estimate precisely so that we don't depend on any other BUILD files. |
| return ImmutableSet.copyOf(pkg.getSkylarkFileDependencies()); |
| } |
| } |