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/*
 * Copyright 2010-2015 JetBrains s.r.o.
 *
 * 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.jetbrains.kotlin.util.slicedMap;

public interface RewritePolicy {

    RewritePolicy DO_NOTHING = new RewritePolicy() {
        @Override
        public  boolean rewriteProcessingNeeded(K key) {
            return false;
        }

        @Override
        public  boolean processRewrite(WritableSlice slice, K key, V oldValue, V newValue) {
            throw new UnsupportedOperationException();
        }
    };

     boolean rewriteProcessingNeeded(K key);

    // True to put, false to skip
     boolean processRewrite(WritableSlice slice, K key, V oldValue, V newValue);
}