| // 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; |
| |
| import com.android.tools.r8.ir.analysis.type.ClassTypeLatticeElement; |
| import com.android.tools.r8.ir.analysis.type.TypeLatticeElement; |
| import com.android.tools.r8.ir.analysis.value.AbstractValue; |
| |
| public abstract class FieldOptimizationInfo { |
| |
| public abstract MutableFieldOptimizationInfo mutableCopy(); |
| |
| public abstract boolean cannotBeKept(); |
| |
| public abstract AbstractValue getAbstractValue(); |
| |
| /** |
| * This should only be used once all methods in the program have been processed. Until then the |
| * value returned by this method may not be sound. |
| */ |
| public abstract int getReadBits(); |
| |
| public abstract ClassTypeLatticeElement getDynamicLowerBoundType(); |
| |
| public abstract TypeLatticeElement getDynamicUpperBoundType(); |
| |
| public abstract boolean valueHasBeenPropagated(); |
| |
| public boolean isDefaultFieldOptimizationInfo() { |
| return false; |
| } |
| |
| public DefaultFieldOptimizationInfo asDefaultFieldOptimizationInfo() { |
| return null; |
| } |
| |
| public boolean isMutableFieldOptimizationInfo() { |
| return false; |
| } |
| |
| public MutableFieldOptimizationInfo asMutableFieldOptimizationInfo() { |
| return null; |
| } |
| } |