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}