| // 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.shaking; |
| |
| /** Immutable keep requirements for a class. */ |
| public final class KeepClassInfo extends KeepInfo { |
| |
| // Requires all aspects of a class to be kept. |
| private static final KeepClassInfo TOP = new KeepClassInfo(true); |
| |
| // Requires no aspects of a class to be kept. |
| private static final KeepClassInfo BOTTOM = new KeepClassInfo(false); |
| |
| public static KeepClassInfo top() { |
| return TOP; |
| } |
| |
| public static KeepClassInfo bottom() { |
| return BOTTOM; |
| } |
| |
| private KeepClassInfo(boolean pinned) { |
| super(pinned); |
| } |
| |
| public Builder builder() { |
| return new Builder(this); |
| } |
| |
| public static class Builder extends KeepInfo.Builder<Builder, KeepClassInfo> { |
| |
| private Builder(KeepClassInfo original) { |
| super(original); |
| } |
| |
| @Override |
| public KeepClassInfo top() { |
| return TOP; |
| } |
| |
| @Override |
| public KeepClassInfo bottom() { |
| return BOTTOM; |
| } |
| |
| @Override |
| public Builder self() { |
| return this; |
| } |
| |
| @Override |
| public boolean isEqualTo(KeepClassInfo other) { |
| return true; |
| } |
| |
| @Override |
| public KeepClassInfo doBuild() { |
| return new KeepClassInfo(isPinned()); |
| } |
| } |
| } |