| // Copyright (c) 2021, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.utils; |
| |
| import java.util.Comparator; |
| |
| public enum CompareResult { |
| LESS_THAN(-1), |
| EQUAL(0), |
| GREATER_THAN(1); |
| |
| private int comparisonResult; |
| |
| CompareResult(int comparisonResult) { |
| this.comparisonResult = comparisonResult; |
| } |
| |
| public int getComparisonResult() { |
| return comparisonResult; |
| } |
| |
| public boolean isEqual() { |
| return this == EQUAL; |
| } |
| |
| public static <T extends Comparable<T>> CompareResult compare(T element, T other) { |
| return fromComparisonResult(element.compareTo(other)); |
| } |
| |
| public static <T> CompareResult compare(T element, T other, Comparator<T> comparator) { |
| return fromComparisonResult(comparator.compare(element, other)); |
| } |
| |
| public static CompareResult fromComparisonResult(int comparisonResult) { |
| if (comparisonResult < 0) { |
| return CompareResult.LESS_THAN; |
| } |
| return comparisonResult == 0 ? CompareResult.EQUAL : CompareResult.GREATER_THAN; |
| } |
| } |