jack/src/com/android/jack/util/TriStateBoolean.java

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * 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.android.jack.util;

/**
 * Boolean with three state.
 */
public enum TriStateBoolean {
  UNDEFINED,
  TRUE,
  FALSE;

  public boolean isTrue() {
    return this == TRUE;
  }

  public boolean isFalse() {
    return this == FALSE;
  }

  public boolean isUndefined() {
    return this == UNDEFINED;
  }
}