| // 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.actions; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.devtools.build.lib.analysis.config.BuildConfigurationValue.RunfileSymlinksMode; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; |
| import com.google.devtools.build.lib.collect.nestedset.Order; |
| import com.google.devtools.build.lib.skyframe.serialization.autocodec.SerializationConstant; |
| import com.google.devtools.build.lib.vfs.PathFragment; |
| import java.util.Map; |
| import javax.annotation.Nullable; |
| |
| /** Empty implementation of RunfilesSupplier */ |
| public final class EmptyRunfilesSupplier implements RunfilesSupplier { |
| |
| @SerializationConstant |
| public static final EmptyRunfilesSupplier INSTANCE = new EmptyRunfilesSupplier(); |
| |
| private EmptyRunfilesSupplier() {} |
| |
| @Override |
| public NestedSet<Artifact> getArtifacts() { |
| return NestedSetBuilder.emptySet(Order.STABLE_ORDER); |
| } |
| |
| @Override |
| public ImmutableSet<PathFragment> getRunfilesDirs() { |
| return ImmutableSet.of(); |
| } |
| |
| @Override |
| public ImmutableMap<PathFragment, Map<PathFragment, Artifact>> getMappings() { |
| return ImmutableMap.of(); |
| } |
| |
| @Override |
| @Nullable |
| public RunfileSymlinksMode getRunfileSymlinksMode(PathFragment runfilesDir) { |
| return null; |
| } |
| |
| @Override |
| public boolean isBuildRunfileLinks(PathFragment runfilesDir) { |
| return false; |
| } |
| |
| @Override |
| public RunfilesSupplier withOverriddenRunfilesDir(PathFragment newRunfilesDir) { |
| throw new UnsupportedOperationException(); |
| } |
| } |