1 /*
2  * The MIT License
3  *
4  * Copyright (c) 2018 Niek Haarman
5  * Copyright (c) 2007 Mockito contributors
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy
8  * of this software and associated documentation files (the "Software"), to deal
9  * in the Software without restriction, including without limitation the rights
10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the Software, and to permit persons to whom the Software is
12  * furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23  * THE SOFTWARE.
24  */
25 
26 package org.mockito.kotlin.internal
27 
28 import kotlin.reflect.KClass
29 import java.lang.reflect.Array as JavaArray
30 
createInstancenull31 inline fun <reified T : Any> createInstance(): T {
32     return when (T::class) {
33         Boolean::class -> false as T
34         Byte::class -> 0.toByte() as T
35         Char::class -> 0.toChar() as T
36         Short::class -> 0.toShort() as T
37         Int::class -> 0 as T
38         Long::class -> 0L as T
39         Float::class -> 0f as T
40         Double::class -> 0.0 as T
41         else -> createInstance(T::class)
42     }
43 }
44 
createInstancenull45 fun <T : Any> createInstance(kClass: KClass<T>): T {
46     return castNull()
47 }
48 
49 /**
50  * Uses a quirk in the bytecode generated by Kotlin
51  * to cast [null] to a non-null type.
52  *
53  * See https://youtrack.jetbrains.com/issue/KT-8135.
54  */
55 @Suppress("UNCHECKED_CAST")
castNullnull56 private fun <T> castNull(): T = null as T
57