/*
* Copyright 2017 the original author or authors.
*
* 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 org.gradle.api.internal.changedetection.state;
import org.gradle.caching.internal.BuildCacheHasher;
public class NullValueSnapshot implements ValueSnapshot {
public static final NullValueSnapshot INSTANCE = new NullValueSnapshot();
private NullValueSnapshot() {
}
@Override
public ValueSnapshot snapshot(Object value, ValueSnapshotter snapshotter) {
if (value == null) {
return this;
}
return snapshotter.snapshot(value);
}
@Override
public void appendToHasher(BuildCacheHasher hasher) {
hasher.putNull();
}
}