| // Copyright (c) 2024, 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.conversion; |
| |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexType; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public abstract class ExtraUnusedParameter extends ExtraParameter { |
| |
| @SuppressWarnings("MixedMutabilityReturnType") |
| public static List<ExtraUnusedParameter> computeExtraUnusedParameters( |
| DexMethod from, DexMethod to) { |
| assert to.getArity() >= from.getArity(); |
| int numberOfUnusedParameters = to.getArity() - from.getArity(); |
| if (numberOfUnusedParameters == 0) { |
| return Collections.emptyList(); |
| } |
| List<ExtraUnusedParameter> extraUnusedParameters = new ArrayList<>(numberOfUnusedParameters); |
| for (int extraUnusedParameterIndex = from.getArity(); |
| extraUnusedParameterIndex < to.getParameters().size(); |
| extraUnusedParameterIndex++) { |
| extraUnusedParameters.add(create(to.getParameter(extraUnusedParameterIndex))); |
| } |
| return extraUnusedParameters; |
| } |
| |
| public static ExtraUnusedParameter create(DexType type) { |
| if (type.isPrimitiveType()) { |
| return ExtraUnusedPrimitiveParameter.create(type); |
| } else { |
| assert type.isReferenceType(); |
| return new ExtraUnusedNullParameter(type); |
| } |
| } |
| |
| @Override |
| public final boolean isUnused() { |
| return true; |
| } |
| |
| @Override |
| @SuppressWarnings("EqualsGetClass") |
| public final boolean equals(Object obj) { |
| return obj != null && getClass() == obj.getClass(); |
| } |
| |
| @Override |
| public final int hashCode() { |
| return getClass().hashCode(); |
| } |
| } |