| // 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 com.google.common.base.Suppliers; |
| import java.util.function.Supplier; |
| |
| public class SupplierUtils { |
| |
| public static <T> Supplier<T> nonThreadSafeMemoize(Supplier<T> supplier) { |
| Box<T> box = new Box<>(); |
| return () -> box.computeIfAbsent(supplier); |
| } |
| |
| public static <T, E extends Throwable> Supplier<T> memoize(ThrowingSupplier<T, E> supplier) { |
| return Suppliers.memoize( |
| () -> { |
| try { |
| return supplier.get(); |
| } catch (Throwable e) { |
| throw new RuntimeException(e); |
| } |
| }); |
| } |
| } |