| // 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.ir.analysis.fieldaccess.state; |
| |
| import com.android.tools.r8.ir.analysis.value.AbstractValue; |
| import com.android.tools.r8.ir.analysis.value.AbstractValueFactory; |
| |
| /** The information that we track for fields whose type is a primitive type. */ |
| public class ConcretePrimitiveTypeFieldState extends ConcreteFieldState { |
| |
| private AbstractValue abstractValue; |
| |
| ConcretePrimitiveTypeFieldState(AbstractValue abstractValue) { |
| this.abstractValue = abstractValue; |
| } |
| |
| public static FieldState create(AbstractValue abstractValue) { |
| return abstractValue.isUnknown() |
| ? FieldState.unknown() |
| : new ConcretePrimitiveTypeFieldState(abstractValue); |
| } |
| |
| @Override |
| public AbstractValue getAbstractValue(AbstractValueFactory abstractValueFactory) { |
| return abstractValue; |
| } |
| |
| @Override |
| public boolean isPrimitive() { |
| return true; |
| } |
| |
| @Override |
| public ConcretePrimitiveTypeFieldState asPrimitive() { |
| return this; |
| } |
| |
| public FieldState mutableJoin( |
| AbstractValue abstractValue, AbstractValueFactory abstractValueFactory) { |
| if (abstractValue.isUnknown()) { |
| return FieldState.unknown(); |
| } |
| this.abstractValue = this.abstractValue.joinPrimitive(abstractValue, abstractValueFactory); |
| return isEffectivelyUnknown() ? unknown() : this; |
| } |
| |
| private boolean isEffectivelyUnknown() { |
| return abstractValue.isUnknown(); |
| } |
| } |