| /* |
| * Copyright 2000-2014 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 com.intellij.vcs.log.graph.utils.impl; |
| |
| import com.intellij.vcs.log.graph.utils.IntToIntMap; |
| import com.intellij.vcs.log.graph.utils.UpdatableIntToIntMap; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class IDIntToIntMap implements IntToIntMap { |
| @NotNull |
| public static final UpdatableIntToIntMap EMPTY = new EmptyIDIntToIntMap(); |
| |
| private final int size; |
| |
| public IDIntToIntMap(int size) { |
| this.size = size; |
| } |
| |
| @Override |
| public int shortSize() { |
| return size; |
| } |
| |
| @Override |
| public int longSize() { |
| return size; |
| } |
| |
| @Override |
| public int getLongIndex(int shortIndex) { |
| return shortIndex; |
| } |
| |
| @Override |
| public int getShortIndex(int longIndex) { |
| return longIndex; |
| } |
| |
| private static class EmptyIDIntToIntMap extends IDIntToIntMap implements UpdatableIntToIntMap { |
| |
| public EmptyIDIntToIntMap() { |
| super(0); |
| } |
| |
| @Override |
| public void update(int startLongIndex, int endLongIndex) { |
| // do nothing |
| } |
| } |
| } |