| // 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.optimize.classinliner.analysis; |
| |
| import com.android.tools.r8.graph.DexField; |
| import com.android.tools.r8.ir.code.InvokeMethodWithReceiver; |
| |
| class UnknownParameterUsage extends ParameterUsage { |
| |
| private static final UnknownParameterUsage TOP = new UnknownParameterUsage(); |
| |
| private UnknownParameterUsage() {} |
| |
| public static UnknownParameterUsage getInstance() { |
| return TOP; |
| } |
| |
| @Override |
| UnknownParameterUsage addFieldReadFromParameter(DexField field) { |
| return this; |
| } |
| |
| @Override |
| UnknownParameterUsage addMethodCallWithParameterAsReceiver(InvokeMethodWithReceiver invoke) { |
| return this; |
| } |
| |
| @Override |
| ParameterUsage externalize() { |
| return this; |
| } |
| |
| @Override |
| public boolean isParameterMutated() { |
| return true; |
| } |
| |
| @Override |
| public boolean isParameterReturned() { |
| return true; |
| } |
| |
| @Override |
| public boolean isParameterUsedAsLock() { |
| return true; |
| } |
| |
| @Override |
| public boolean isTop() { |
| return true; |
| } |
| |
| @Override |
| UnknownParameterUsage setParameterMutated() { |
| return this; |
| } |
| |
| @Override |
| UnknownParameterUsage setParameterReturned() { |
| return this; |
| } |
| |
| @Override |
| UnknownParameterUsage setParameterUsedAsLock() { |
| return this; |
| } |
| } |