| // Copyright (c) 2019, 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.initializer; |
| |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.PrunedItems; |
| import com.android.tools.r8.graph.lens.GraphLens; |
| import com.android.tools.r8.graph.proto.ArgumentInfoCollection; |
| import com.android.tools.r8.ir.analysis.fieldvalueanalysis.AbstractFieldSet; |
| import com.android.tools.r8.ir.analysis.fieldvalueanalysis.UnknownFieldSet; |
| import com.android.tools.r8.ir.optimize.info.field.EmptyInstanceFieldInitializationInfoCollection; |
| import com.android.tools.r8.ir.optimize.info.field.InstanceFieldInitializationInfoCollection; |
| import com.android.tools.r8.shaking.AppInfoWithLiveness; |
| |
| public class DefaultInstanceInitializerInfo extends InstanceInitializerInfo { |
| |
| private static final DefaultInstanceInitializerInfo INSTANCE = |
| new DefaultInstanceInitializerInfo(); |
| |
| private DefaultInstanceInitializerInfo() {} |
| |
| public static DefaultInstanceInitializerInfo getInstance() { |
| return INSTANCE; |
| } |
| |
| @Override |
| public boolean isDefaultInstanceInitializerInfo() { |
| return true; |
| } |
| |
| @Override |
| public boolean hasParent() { |
| return false; |
| } |
| |
| @Override |
| public DexMethod getParent() { |
| return null; |
| } |
| |
| @Override |
| public InstanceFieldInitializationInfoCollection fieldInitializationInfos() { |
| return EmptyInstanceFieldInitializationInfoCollection.getInstance(); |
| } |
| |
| @Override |
| public AbstractFieldSet readSet() { |
| return UnknownFieldSet.getInstance(); |
| } |
| |
| @Override |
| public boolean instanceFieldInitializationMayDependOnEnvironment() { |
| return true; |
| } |
| |
| @Override |
| public boolean mayHaveOtherSideEffectsThanInstanceFieldAssignments() { |
| return true; |
| } |
| |
| @Override |
| public boolean receiverNeverEscapesOutsideConstructorChain() { |
| return false; |
| } |
| |
| @Override |
| public InstanceInitializerInfo fixupAfterParametersChanged( |
| AppView<AppInfoWithLiveness> appView, ArgumentInfoCollection argumentInfoCollection) { |
| return this; |
| } |
| |
| @Override |
| public InstanceInitializerInfo rewrittenWithLens( |
| AppView<AppInfoWithLiveness> appView, |
| GraphLens lens, |
| GraphLens codeLens, |
| PrunedItems prunedItems) { |
| return this; |
| } |
| |
| @Override |
| public String toString() { |
| return "DefaultInstanceInitializerInfo"; |
| } |
| } |