001/*
002 * Copyright 2012 Google Inc. All Rights Reserved.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.google.j2objc.annotations;
018
019import static java.lang.annotation.ElementType.FIELD;
020import static java.lang.annotation.ElementType.LOCAL_VARIABLE;
021import static java.lang.annotation.ElementType.PARAMETER;
022import static java.lang.annotation.RetentionPolicy.SOURCE;
023
024import java.lang.annotation.Retention;
025import java.lang.annotation.Target;
026
027
028/**
029 * Annotation that indicates a variable has a weak relationship to its owner. The variable will be
030 * declared with the __unsafe_unretained annotation.
031 *
032 * @author Tom Ball
033 */
034@Target({FIELD, LOCAL_VARIABLE, PARAMETER})
035@Retention(SOURCE)
036public @interface Weak {
037}