1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/mobile/android/base/mozglue/generatorannotations/WrapElementForJNI.java Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,47 @@ 1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public 1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this 1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 1.7 + 1.8 +package org.mozilla.gecko.mozglue.generatorannotations; 1.9 + 1.10 +import java.lang.annotation.Retention; 1.11 +import java.lang.annotation.RetentionPolicy; 1.12 + 1.13 +/** 1.14 + * This annotation is used to tag methods that are to have wrapper methods generated in the android 1.15 + * bridge. Such methods will be protected from destruction by Proguard, and allow us to avoid writing 1.16 + * by hand large amounts of boring boilerplate. 1.17 + * An annotated Java method will have a corresponding method generated in the android bridge. 1.18 + * By default, the name of the generated method will be the same as the name of the Java method, with 1.19 + * the first letter in upper case. The stubName property may be used to specify a custom name for the 1.20 + * generated method stub. 1.21 + * 1.22 + * allowMultithreaded should be used as sparingly as possible - the resulting code will allow the 1.23 + * Java method to be invoked from the C side from multiple threads. Often, this isn't what is wanted 1.24 + * and may lead to subtle bugs. 1.25 + */ 1.26 +@Retention(RetentionPolicy.RUNTIME) 1.27 +public @interface WrapElementForJNI { 1.28 + // Optional parameter specifying the name of the generated method stub. If omitted, the name 1.29 + // of the Java method will be used. 1.30 + String stubName() default ""; 1.31 + 1.32 + // Optional parameter specifying if the generated method should be a static member of AndroidBridge 1.33 + // By default, an instance member is produced. This is almost always what is wanted. 1.34 + boolean generateStatic() default false; 1.35 + 1.36 + /** 1.37 + * If set, the generated method stub will support being called from any thread via the use of 1.38 + * GetJNIForThread. This is rarely useful, at time of writing, as well as possibly risky. 1.39 + * See information in AndroidBridge.cpp regarding GetJNIForThread. 1.40 + * 1.41 + * Did I mention use of this function is discouraged? 1.42 + */ 1.43 + boolean allowMultithread() default false; 1.44 + 1.45 + /** 1.46 + * If set, the generated stub will not handle uncaught exceptions. 1.47 + * Any exception must be handled or cleared by the code calling the stub. 1.48 + */ 1.49 + boolean noThrow() default false; 1.50 +}