1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package android.support.annotation;
17
18import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
19import static java.lang.annotation.ElementType.CONSTRUCTOR;
20import static java.lang.annotation.ElementType.FIELD;
21import static java.lang.annotation.ElementType.METHOD;
22import static java.lang.annotation.ElementType.PACKAGE;
23import static java.lang.annotation.ElementType.TYPE;
24import static java.lang.annotation.RetentionPolicy.CLASS;
25
26import java.lang.annotation.Retention;
27import java.lang.annotation.Target;
28
29/**
30 * Denotes that the annotated element should not be removed when
31 * the code is minified at build time. This is typically used
32 * on methods and classes that are accessed only via reflection
33 * so a compiler may think that the code is unused.
34 * <p>
35 * Example:
36 * <pre><code>
37 *  &#64;Keep
38 *  public void foo() {
39 *      ...
40 *  }
41 * </code></pre>
42 */
43@Retention(CLASS)
44@Target({PACKAGE,TYPE,ANNOTATION_TYPE,CONSTRUCTOR,METHOD,FIELD})
45public @interface Keep {
46}
47