001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.jet.lang.resolve.lazy.storage;
018    
019    import org.jetbrains.annotations.NotNull;
020    
021    import java.util.Map;
022    
023    public abstract class MemoizedFunctionToNotNullImpl<K, V> extends MemoizedFunctionToNullableImpl<K, V> implements MemoizedFunctionToNotNull<K, V> {
024    
025        public MemoizedFunctionToNotNullImpl() {
026        }
027    
028        public MemoizedFunctionToNotNullImpl(@NotNull Map<K, Object> map) {
029            super(map);
030        }
031    
032        @NotNull
033        @Override
034        public V fun(K input) {
035            V result = super.fun(input);
036            assert result != null : "compute() returned null";
037            return result;
038        }
039    
040        @NotNull
041        @Override
042        protected abstract V doCompute(K input);
043    }