| // Copyright (c) 2022, 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.dfs; |
| |
| public abstract class DFSWorklistItem<T> { |
| |
| T value; |
| |
| public DFSWorklistItem(T value) { |
| this.value = value; |
| } |
| |
| public T getValue() { |
| return value; |
| } |
| |
| public boolean isFullyVisited() { |
| return false; |
| } |
| |
| public boolean isNewlyVisited() { |
| return false; |
| } |
| |
| public NewlyVisitedDFSWorklistItem<T> asNewlyVisited() { |
| return null; |
| } |
| |
| public static class NewlyVisitedDFSWorklistItem<T> extends DFSWorklistItem<T> { |
| |
| public NewlyVisitedDFSWorklistItem(T value) { |
| super(value); |
| } |
| |
| @Override |
| public boolean isNewlyVisited() { |
| return true; |
| } |
| |
| @Override |
| public NewlyVisitedDFSWorklistItem<T> asNewlyVisited() { |
| return this; |
| } |
| |
| public FullyVisitedDFSWorklistItem<T> toFullyVisited() { |
| return new FullyVisitedDFSWorklistItem<>(getValue()); |
| } |
| } |
| |
| public static class FullyVisitedDFSWorklistItem<T> extends DFSWorklistItem<T> { |
| |
| public FullyVisitedDFSWorklistItem(T value) { |
| super(value); |
| } |
| |
| @Override |
| public boolean isFullyVisited() { |
| return true; |
| } |
| } |
| } |