Alexander Udalov
28 lines
719 B
Kotlin
Vendored
28 lines
719 B
Kotlin
Vendored
// FILE: 1.kt
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package test
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class AbstractTreeNode<T>(val value: T, val parent: AbstractTreeNode<T>?)
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internal inline fun <reified T : Any> AbstractTreeNode<*>.findNotNullValueOfType(strict: Boolean = false): T {
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return findValueOfType(strict)!!
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}
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internal inline fun <reified T : Any> AbstractTreeNode<*>.findValueOfType(strict: Boolean = true): T? {
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var current: AbstractTreeNode<*>? = if (strict) this.parent else this
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while (current != null) {
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val value = current.value
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if (value is T) return value
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current = current.parent
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}
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return null
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}
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// FILE: 2.kt
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import test.*
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fun box(): String {
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return AbstractTreeNode("OK", null).findNotNullValueOfType<String>()!!
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}
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