| // Copyright (c) 2023, 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.utils; |
| |
| import com.android.tools.r8.androidapi.ComputedApiLevel; |
| import com.android.tools.r8.androidapi.CovariantReturnTypeMethods; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.DexEncodedMethod; |
| import com.android.tools.r8.graph.DexLibraryClass; |
| import com.android.tools.r8.graph.MethodAccessFlags; |
| |
| public class CovariantReturnTypeUtils { |
| |
| public static void modelLibraryMethodsWithCovariantReturnTypes(AppView<?> appView) { |
| CovariantReturnTypeMethods.registerMethodsWithCovariantReturnType( |
| appView.dexItemFactory(), |
| method -> { |
| DexLibraryClass libraryClass = |
| DexLibraryClass.asLibraryClassOrNull( |
| appView.appInfo().definitionForWithoutExistenceAssert(method.getHolderType())); |
| if (libraryClass == null) { |
| return; |
| } |
| // Check if the covariant method exists on the class. |
| DexEncodedMethod covariantMethod = libraryClass.lookupMethod(method); |
| if (covariantMethod != null) { |
| return; |
| } |
| libraryClass.addVirtualMethod( |
| DexEncodedMethod.builder() |
| .setMethod(method) |
| .setAccessFlags(MethodAccessFlags.builder().setPublic().build()) |
| .setApiLevelForDefinition(ComputedApiLevel.notSet()) |
| .build()); |
| }); |
| } |
| } |