| /* |
| * Copyright 2012-present Facebook, Inc. |
| * |
| * 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.facebook.buck.cli; |
| |
| import static java.lang.annotation.ElementType.FIELD; |
| import static java.lang.annotation.RetentionPolicy.RUNTIME; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.Target; |
| |
| /** |
| * If this annotation is used on a field in one of the {@code ..Options} classes (e.g. subclasses of |
| * {@link AbstractCommandOptions}), then a {@link CmdLineParserAdditionalOptions} will recursively |
| * look for options/arguments in the (class of the) field and add them to the parser, almost |
| * allowing traits for options. |
| * <p> |
| * Usage example: |
| * <pre> |
| * class MyOptions{ |
| * @AdditionalOptions |
| * public ReusableSubOptions subOptions; |
| * @Option(...) |
| * public String someOption; |
| * } |
| * class ReusableSubOptions{ |
| * @Option(...) |
| * public String someSubOption; |
| * } |
| * </pre> |
| */ |
| @Retention(RUNTIME) |
| @Target({FIELD}) |
| public @interface AdditionalOptions { |
| |
| } |