| // 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; |
| |
| /** Pattern for matching the "extends" or "implements" clause of a class. */ |
| public abstract class KeepExtendsPattern { |
| |
| public static KeepExtendsPattern any() { |
| return Some.getAnyInstance(); |
| } |
| |
| public static class Builder { |
| |
| private KeepExtendsPattern pattern = KeepExtendsPattern.any(); |
| |
| private Builder() {} |
| |
| public Builder classPattern(KeepQualifiedClassNamePattern pattern) { |
| this.pattern = new Some(pattern); |
| return this; |
| } |
| |
| public KeepExtendsPattern build() { |
| return pattern; |
| } |
| } |
| |
| private static class Some extends KeepExtendsPattern { |
| |
| private static final KeepExtendsPattern ANY_INSTANCE = |
| new Some(KeepQualifiedClassNamePattern.any()); |
| |
| private static KeepExtendsPattern getAnyInstance() { |
| return ANY_INSTANCE; |
| } |
| |
| private final KeepQualifiedClassNamePattern pattern; |
| |
| public Some(KeepQualifiedClassNamePattern pattern) { |
| assert pattern != null; |
| this.pattern = pattern; |
| } |
| |
| @Override |
| public boolean isAny() { |
| return pattern.isAny(); |
| } |
| |
| @Override |
| public KeepQualifiedClassNamePattern asClassNamePattern() { |
| return pattern; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| Some that = (Some) o; |
| return pattern.equals(that.pattern); |
| } |
| |
| @Override |
| public int hashCode() { |
| return pattern.hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return pattern.toString(); |
| } |
| } |
| |
| public static Builder builder() { |
| return new Builder(); |
| } |
| |
| private KeepExtendsPattern() {} |
| |
| public abstract boolean isAny(); |
| |
| public abstract KeepQualifiedClassNamePattern asClassNamePattern(); |
| } |