nikita.movshin
65244b4bea
Change the copyright from "JetBrains s.r.o." to "JetBrains s.r.o. and Kotlin Project contributors" Update only 2 lines copyright.
40 lines
1.3 KiB
Kotlin
40 lines
1.3 KiB
Kotlin
/*
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* Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
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* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
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*/
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package templates
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import templates.Family.*
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import templates.SequenceClass.*
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object Guards : TemplateGroupBase() {
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private val THIS = "\$this"
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val f_requireNoNulls = fn("requireNoNulls()") {
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include(Iterables, Sequences, InvariantArraysOfObjects, Lists)
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} builder {
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doc { "Returns an original collection containing all the non-`null` elements, throwing an [IllegalArgumentException] if there are any `null` elements." }
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sequenceClassification(intermediate, stateless)
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typeParam("T : Any")
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toNullableT = true
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returns("SELF")
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body {
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"""
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for (element in this) {
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if (element == null) {
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throw IllegalArgumentException("null element found in $THIS.")
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}
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}
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@Suppress("UNCHECKED_CAST")
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return this as SELF
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"""
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}
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body(Sequences) {
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"""
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return map { it ?: throw IllegalArgumentException("null element found in $THIS.") }
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"""
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}
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}
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}
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