| /* |
| * 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.psi.search; |
| |
| import com.intellij.psi.PsiBundle; |
| import org.jetbrains.annotations.NotNull; |
| |
| public abstract class SearchScope { |
| private static int hashCodeCounter = 0; |
| |
| @SuppressWarnings({"AssignmentToStaticFieldFromInstanceMethod"}) |
| private final int myHashCode = hashCodeCounter++; |
| |
| /** |
| * Overridden for performance reason. Object.hashCode() is native method and becomes a bottleneck when called often. |
| * |
| * @return hashCode value semantically identical to one from Object but not native |
| */ |
| @Override |
| public int hashCode() { |
| return myHashCode; |
| } |
| |
| @NotNull |
| public String getDisplayName() { |
| return PsiBundle.message("search.scope.unknown"); |
| } |
| |
| @NotNull public abstract SearchScope intersectWith(@NotNull SearchScope scope2); |
| @NotNull public abstract SearchScope union(@NotNull SearchScope scope); |
| } |