1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2008 Google Inc. All rights reserved. 3 // 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file or at 6 // https://developers.google.com/open-source/licenses/bsd 7 8 package com.google.protobuf; 9 10 import static java.lang.annotation.ElementType.METHOD; 11 import static java.lang.annotation.RetentionPolicy.CLASS; 12 13 import java.lang.annotation.Documented; 14 import java.lang.annotation.Retention; 15 import java.lang.annotation.Target; 16 17 /** 18 * Indicates that the return value of the annotated method can be safely ignored. 19 * 20 * <p>This is the opposite of {@link CheckReturnValue}. It can be used inside classes or packages 21 * annotated with {@code @CheckReturnValue} to exempt specific methods from the default. 22 */ 23 @Documented 24 @Target(METHOD) // TODO: consider adding CONSTRUCTOR later if necessary 25 @Retention(CLASS) 26 @interface CanIgnoreReturnValue {} 27