| // 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.ir.analysis.framework.intraprocedural; |
| |
| import com.android.tools.r8.errors.Unreachable; |
| |
| /** |
| * Used by the {@link AbstractTransferFunction} to signal that the dataflow analysis should be |
| * aborted. |
| */ |
| public class FailedTransferFunctionResult<StateType extends AbstractState<StateType>> |
| implements TransferFunctionResult<StateType> { |
| |
| public FailedTransferFunctionResult() {} |
| |
| @Override |
| public StateType asAbstractState() { |
| throw new Unreachable(); |
| } |
| |
| @Override |
| public boolean isFailedTransferResult() { |
| return true; |
| } |
| } |