| // 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.analysis.configuredtargets; |
| |
| import com.google.devtools.build.lib.actions.ActionLookupKey; |
| import com.google.devtools.build.lib.analysis.FileProvider; |
| import com.google.devtools.build.lib.analysis.PackageSpecificationProvider; |
| import com.google.devtools.build.lib.analysis.TargetContext; |
| import com.google.devtools.build.lib.analysis.TransitiveInfoProvider; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; |
| import com.google.devtools.build.lib.packages.Info; |
| import com.google.devtools.build.lib.packages.PackageGroup; |
| import com.google.devtools.build.lib.packages.PackageSpecification.PackageGroupContents; |
| import com.google.devtools.build.lib.packages.Provider; |
| import javax.annotation.Nullable; |
| |
| /** |
| * Dummy ConfiguredTarget for package groups. Contains no functionality, since package groups are |
| * not really first-class Targets. |
| */ |
| @Immutable |
| public class PackageGroupConfiguredTarget extends AbstractConfiguredTarget { |
| private final PackageSpecificationProvider packageSpecificationProvider; |
| |
| @Override |
| public <P extends TransitiveInfoProvider> P getProvider(Class<P> provider) { |
| if (provider == FileProvider.class) { |
| return provider.cast(FileProvider.EMPTY); // can't fail |
| } |
| if (provider == PackageSpecificationProvider.class) { |
| return provider.cast(packageSpecificationProvider); |
| } else { |
| return super.getProvider(provider); |
| } |
| } |
| |
| public PackageGroupConfiguredTarget( |
| ActionLookupKey actionLookupKey, |
| NestedSet<PackageGroupContents> visibility, |
| TargetContext targetContext, |
| PackageGroup packageGroup) { |
| super(actionLookupKey, visibility); |
| this.packageSpecificationProvider = |
| PackageSpecificationProvider.create(targetContext, packageGroup); |
| } |
| |
| public PackageGroupConfiguredTarget( |
| ActionLookupKey actionLookupKey, TargetContext targetContext, PackageGroup packageGroup) { |
| this(actionLookupKey, targetContext.getVisibility(), targetContext, packageGroup); |
| } |
| |
| @Override |
| @Nullable |
| protected Info rawGetStarlarkProvider(Provider.Key providerKey) { |
| if (providerKey.equals(packageSpecificationProvider.getProvider().getKey())) { |
| return packageSpecificationProvider; |
| } |
| return null; |
| } |
| |
| @Override |
| @Nullable |
| protected Object rawGetStarlarkProvider(String providerKey) { |
| return null; |
| } |
| } |