| // 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.optimize.info.field; |
| |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.GraphLense; |
| import com.android.tools.r8.shaking.AppInfoWithLiveness; |
| |
| /** |
| * Used to represent that a constructor initializes an instance field on the newly created instance |
| * with argument number {@link #argumentIndex} from the constructor's argument list. |
| */ |
| public class InstanceFieldArgumentInitializationInfo implements InstanceFieldInitializationInfo { |
| |
| private final int argumentIndex; |
| |
| /** Intentionally package private, use {@link InstanceFieldInitializationInfoFactory} instead. */ |
| InstanceFieldArgumentInitializationInfo(int argumentIndex) { |
| this.argumentIndex = argumentIndex; |
| } |
| |
| public int getArgumentIndex() { |
| return argumentIndex; |
| } |
| |
| @Override |
| public boolean isArgumentInitializationInfo() { |
| return true; |
| } |
| |
| @Override |
| public InstanceFieldArgumentInitializationInfo asArgumentInitializationInfo() { |
| return this; |
| } |
| |
| @Override |
| public InstanceFieldInitializationInfo rewrittenWithLens( |
| AppView<AppInfoWithLiveness> appView, GraphLense lens) { |
| // We don't have the context here to determine what should happen. It is the responsibility of |
| // optimizations that change the proto of instance initializers to update the argument |
| // initialization info. |
| return this; |
| } |
| } |