| // 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.BiFunction; |
| import java.util.function.Consumer; |
| import java.util.function.Function; |
| import java.util.function.Supplier; |
| |
| public class FunctionUtils { |
| |
| public static <S, T> T applyOrElse(S object, Function<S, T> fn, T orElse) { |
| return object != null ? fn.apply(object) : orElse; |
| } |
| |
| public static <S, T, R> Function<S, Function<T, R>> curry(BiFunction<S, T, R> function) { |
| return arg -> arg2 -> function.apply(arg, arg2); |
| } |
| |
| public static <S, T, R> Function<T, R> apply(BiFunction<S, T, R> function, S arg) { |
| return curry(function).apply(arg); |
| } |
| |
| public static <T, R> void forEachApply( |
| Iterable<T> list, Function<T, Consumer<R>> func, R argument) { |
| for (T t : list) { |
| func.apply(t).accept(argument); |
| } |
| } |
| |
| public static <T, R> Function<T, R> ignoreArgument(Supplier<R> supplier) { |
| return ignore -> supplier.get(); |
| } |
| } |