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// 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.skyframe;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import java.util.Objects;
/**
* A simple value class to store the direct Skylark file dependencies of a Skylark extension file.
* It also contains a Label identifying the extension file.
*
* <p>The dependency structure must be acyclic.
*/
@AutoCodec
public class SkylarkFileDependency {
private final Label label;
private final ImmutableList<SkylarkFileDependency> dependencies;
public SkylarkFileDependency(Label label, ImmutableList<SkylarkFileDependency> dependencies) {
this.label = label;
this.dependencies = dependencies;
}
/**
* Returns the list of direct Skylark file dependencies of the Skylark extension file
* corresponding to this object.
*/
public ImmutableList<SkylarkFileDependency> getDependencies() {
return dependencies;
}
/**
* Returns the Label of the Skylark extension file corresponding to this object.
*/
public Label getLabel() {
return label;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof SkylarkFileDependency)) {
return false;
}
SkylarkFileDependency other = (SkylarkFileDependency) obj;
if (!label.equals(other.getLabel())) {
return false;
}
return dependencies.equals(other.getDependencies());
}
@Override
public int hashCode() {
return Objects.hash(label, dependencies);
}
}
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