| // Copyright (c) 2021, 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.optimize.argumentpropagation.codescanner; |
| |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.ir.analysis.value.AbstractValue; |
| import com.android.tools.r8.shaking.AppInfoWithLiveness; |
| import com.android.tools.r8.utils.Action; |
| |
| public abstract class ParameterState { |
| |
| public static BottomParameterState bottomArrayTypeParameter() { |
| return BottomArrayTypeParameterState.get(); |
| } |
| |
| public static BottomParameterState bottomClassTypeParameter() { |
| return BottomClassTypeParameterState.get(); |
| } |
| |
| public static BottomParameterState bottomPrimitiveTypeParameter() { |
| return BottomPrimitiveTypeParameterState.get(); |
| } |
| |
| public static BottomParameterState bottomReceiverParameter() { |
| return BottomReceiverParameterState.get(); |
| } |
| |
| public static UnknownParameterState unknown() { |
| return UnknownParameterState.get(); |
| } |
| |
| public abstract AbstractValue getAbstractValue(AppView<AppInfoWithLiveness> appView); |
| |
| public boolean isBottom() { |
| return false; |
| } |
| |
| public boolean isConcrete() { |
| return false; |
| } |
| |
| public ConcreteParameterState asConcrete() { |
| return null; |
| } |
| |
| public NonEmptyParameterState asNonEmpty() { |
| return null; |
| } |
| |
| public boolean isUnknown() { |
| return false; |
| } |
| |
| public abstract ParameterState mutableCopy(); |
| |
| public final ParameterState mutableJoin( |
| AppView<AppInfoWithLiveness> appView, |
| ParameterState parameterState, |
| DexType parameterType, |
| StateCloner cloner) { |
| return mutableJoin(appView, parameterState, parameterType, cloner, Action.empty()); |
| } |
| |
| public abstract ParameterState mutableJoin( |
| AppView<AppInfoWithLiveness> appView, |
| ParameterState parameterState, |
| DexType parameterType, |
| StateCloner cloner, |
| Action onChangedAction); |
| } |