| // Copyright (c) 2020, 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.function.Function; |
| import java.util.function.Predicate; |
| |
| public class ObjectUtils { |
| |
| public static <T> boolean getBooleanOrElse(T object, Predicate<T> fn, boolean orElse) { |
| if (object != null) { |
| return fn.test(object); |
| } |
| return orElse; |
| } |
| |
| public static <S, T> T mapNotNull(S object, Function<? super S, ? extends T> fn) { |
| if (object != null) { |
| return fn.apply(object); |
| } |
| return null; |
| } |
| |
| /** |
| * If the object is null return the default value, otherwise compute the function with the value. |
| */ |
| public static <S, T> T mapNotNullOrDefault(S object, T def, Function<? super S, ? extends T> fn) { |
| if (object != null) { |
| return fn.apply(object); |
| } |
| return def; |
| } |
| } |