1 /* 2 * Copyright (C) 2023 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 */ 16 package android.ravenwood.annotation; 17 18 import static java.lang.annotation.ElementType.CONSTRUCTOR; 19 import static java.lang.annotation.ElementType.METHOD; 20 21 import java.lang.annotation.Retention; 22 import java.lang.annotation.RetentionPolicy; 23 import java.lang.annotation.Target; 24 25 /** 26 * Denotes that the annotated method is unsupported on Ravenwood, and calling it will throw 27 * a runtime exception. 28 * <p> 29 * Implementation included in the annotated method will be removed on Ravenwood, and calling it 30 * will throw a runtime exception with a message indicating that the method is unsupported 31 * on Ravenwood. 32 * 33 * TODO: Create "whole-class-throw"? 34 * 35 * @hide 36 */ 37 @Target({METHOD, CONSTRUCTOR}) 38 @Retention(RetentionPolicy.CLASS) 39 public @interface RavenwoodThrow { 40 /** 41 * One or more classes that aren't yet supported by Ravenwood, which is why this method throws. 42 */ blockedBy()43 Class<?>[] blockedBy() default {}; 44 45 /** 46 * General free-form description of why this method throws. 47 */ reason()48 String reason() default ""; 49 50 /** 51 * Tracking bug number, if any. 52 */ bug()53 long bug() default 0; 54 } 55