| // Copyright 2019 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package com.google.devtools.common.options; |
| |
| import com.google.auto.value.AutoValue; |
| import com.google.common.base.Preconditions; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Option class wrapping a {@link Pattern class}. We wrap the {@link Pattern} class instance since |
| * it uses reference equality, which breaks the assumption of {@link Converter} that {@code |
| * converter.convert(sameString).equals(converter.convert(sameString)}. |
| * |
| * <p>Please note that the equality implementation is based solely on the input regex, therefore |
| * patterns expressing the same intent with different regular expressions (e.g. {@code "a"} and |
| * {@code "[a]"} will not be treated as equal. |
| */ |
| @AutoValue |
| public abstract class RegexPatternOption { |
| static RegexPatternOption create(Pattern regexPattern) { |
| return new AutoValue_RegexPatternOption(Preconditions.checkNotNull(regexPattern)); |
| } |
| |
| public abstract Pattern regexPattern(); |
| |
| @Override |
| public final boolean equals(Object other) { |
| if (this == other) { |
| return true; |
| } |
| if (!(other instanceof RegexPatternOption)) { |
| return false; |
| } |
| |
| RegexPatternOption otherOption = (RegexPatternOption) other; |
| return otherOption.regexPattern().pattern().equals(regexPattern().pattern()); |
| } |
| |
| @Override |
| public final int hashCode() { |
| return regexPattern().pattern().hashCode(); |
| } |
| } |