| // Copyright (c) 2022, 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.keepanno.ast; |
| |
| |
| public abstract class KeepMethodReturnTypePattern { |
| |
| public static KeepMethodReturnTypePattern any() { |
| return SomeType.ANY_TYPE_INSTANCE; |
| } |
| |
| public static KeepMethodReturnTypePattern voidType() { |
| return VoidType.getInstance(); |
| } |
| |
| public boolean isAny() { |
| return isType() && asType().isAny(); |
| } |
| |
| public boolean isVoid() { |
| return false; |
| } |
| |
| public boolean isType() { |
| return asType() != null; |
| } |
| |
| public KeepTypePattern asType() { |
| return null; |
| } |
| |
| private static class VoidType extends KeepMethodReturnTypePattern { |
| private static final VoidType INSTANCE = new VoidType(); |
| |
| public static VoidType getInstance() { |
| return INSTANCE; |
| } |
| |
| @Override |
| public boolean isVoid() { |
| return true; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return this == obj; |
| } |
| |
| @Override |
| public int hashCode() { |
| return System.identityHashCode(this); |
| } |
| |
| @Override |
| public String toString() { |
| return "void"; |
| } |
| } |
| |
| private static class SomeType extends KeepMethodReturnTypePattern { |
| |
| private static final SomeType ANY_TYPE_INSTANCE = new SomeType(KeepTypePattern.any()); |
| |
| private final KeepTypePattern typePattern; |
| |
| private SomeType(KeepTypePattern typePattern) { |
| assert typePattern != null; |
| this.typePattern = typePattern; |
| } |
| |
| @Override |
| public KeepTypePattern asType() { |
| return typePattern; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| SomeType someType = (SomeType) o; |
| return typePattern.equals(someType.typePattern); |
| } |
| |
| @Override |
| public int hashCode() { |
| return typePattern.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return typePattern.toString(); |
| } |
| } |
| } |