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