1 /*
2  * Copyright (C) 2015 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 
17 package com.android.launcher3.util;
18 
19 import java.lang.annotation.ElementType;
20 import java.lang.annotation.Retention;
21 import java.lang.annotation.RetentionPolicy;
22 import java.lang.annotation.Target;
23 
24 /**
25  * Indicates that the given field or method has package visibility solely to prevent the creation
26  * of a synthetic method. In practice, you should treat this field/method as if it were private.
27  * <p>
28  *
29  * When a private method is called from an inner class, the Java compiler generates a simple
30  * package private shim method that the class generated from the inner class can call. This results
31  * in unnecessary bloat and runtime method call overhead. It also gets us closer to the dex method
32  * count limit.
33  * <p>
34  *
35  * If you'd like to see warnings for these synthetic methods in eclipse, turn on:
36  * Window > Preferences > Java > Compiler > Errors/Warnings > "Access to a non-accessible member
37  * of an enclosing type".
38  * <p>
39  *
40  */
41 @Retention(RetentionPolicy.SOURCE)
42 @Target({ElementType.METHOD, ElementType.FIELD, ElementType.CONSTRUCTOR, ElementType.TYPE})
43 public @interface Thunk { }