| /* |
| * Copyright 2000-2009 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. |
| */ |
| |
| /* |
| * Created by IntelliJ IDEA. |
| * User: max |
| * Date: Feb 7, 2002 |
| * Time: 11:23:22 AM |
| * To change template for new class use |
| * Code Style | Class Templates options (Tools | IDE Options). |
| */ |
| package com.intellij.codeInspection.dataFlow.value; |
| |
| public class DfaUnknownValue extends DfaValue { |
| private static class DfaUnknownValueHolder { |
| private static final DfaUnknownValue myInstance = new DfaUnknownValue(); |
| } |
| public static DfaUnknownValue getInstance() { |
| return DfaUnknownValueHolder.myInstance; |
| } |
| |
| private DfaUnknownValue() { |
| super(null); |
| } |
| |
| @Override |
| public DfaValue createNegated() { |
| return this; |
| } |
| |
| @SuppressWarnings({"HardCodedStringLiteral"}) |
| public String toString() { |
| return "<unknown>"; |
| } |
| |
| public boolean equals(Object obj) { |
| return obj == this; |
| } |
| |
| public int hashCode() { |
| return 0; |
| } |
| |
| @Override |
| public int getID() { |
| return 0; |
| } |
| |
| } |