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1 /*
<lambda>null2  * Copyright (C) 2020 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.tools.metalava
18 
19 import com.android.tools.metalava.model.Item
20 import com.android.tools.metalava.model.MethodItem
21 
22 import java.util.function.Predicate
23 
24 /**
25  * Filter that will elide exact duplicate methods that are already included
26  * in another superclass/interfaces.
27  */
28 class ElidingPredicate(private val wrapped: Predicate<Item>) : Predicate<Item> {
29 
30     override fun test(method: Item): Boolean {
31         // This method should be included, but if it's an exact duplicate
32         // override then we can elide it.
33         return if (method is MethodItem && !method.isConstructor()) {
34             val differentSuper = method.findPredicateSuperMethod(Predicate { test ->
35                 // We're looking for included and perfect signature
36                 wrapped.test(test) &&
37                     test is MethodItem &&
38                     MethodItem.sameSignature(method, test, false)
39             })
40             differentSuper == null
41         } else {
42             true
43         }
44     }
45 }
46