src/main/java/com/google/devtools/build/lib/skyframe/ArtifactPathResolver.java

// Copyright 2018 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.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.Root;

/**
 * An indirection layer on Path resolution of {@link Artifact} and {@link Root}.
 */
interface ArtifactPathResolver {
  Path toPath(Artifact artifact);
  Root transformRoot(Root root);

  ArtifactPathResolver IDENTITY = new ArtifactPathResolver() {
    @Override
    public Path toPath(Artifact artifact) {
      return artifact.getPath();
    }

    @Override
    public Root transformRoot(Root root) {
      return root;
    }
  };
}