| // 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.cf.code.frame; |
| |
| import com.android.tools.r8.errors.Unreachable; |
| import com.android.tools.r8.graph.lens.GraphLens; |
| import com.android.tools.r8.naming.NamingLens; |
| |
| public class TwoWord extends SingletonFrameType implements WideFrameType { |
| |
| static final TwoWord SINGLETON = new TwoWord(); |
| |
| private TwoWord() {} |
| |
| @Override |
| public boolean isTwoWord() { |
| return true; |
| } |
| |
| @Override |
| public boolean isWide() { |
| return true; |
| } |
| |
| @Override |
| public WideFrameType asWide() { |
| return this; |
| } |
| |
| @Override |
| public int getWidth() { |
| return 2; |
| } |
| |
| @Override |
| public WideFrameType join(WideFrameType frameType) { |
| // The join of wide with one of {double, long, wide} is wide. |
| return this; |
| } |
| |
| @Override |
| public Object getTypeOpcode(GraphLens graphLens, NamingLens namingLens) { |
| throw new Unreachable("Should only be used for verification"); |
| } |
| |
| @Override |
| public String toString() { |
| return "twoword"; |
| } |
| } |