Ilya Gorbunov
59 lines
1.7 KiB
Kotlin
59 lines
1.7 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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/** Concat regular Array's and TypedArray's into an Array.
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*/
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@PublishedApi
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internal fun <T> arrayConcat(vararg args: T): T {
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val len = args.size
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val typed = js("Array(len)").unsafeCast<Array<T>>()
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for (i in 0 .. (len - 1)) {
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val arr = args[i]
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if (arr !is Array<*>) {
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typed[i] = js("[]").slice.call(arr)
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} else {
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typed[i] = arr
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}
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}
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return js("[]").concat.apply(js("[]"), typed);
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}
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/** Concat primitive arrays. Main use: prepare vararg arguments.
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*/
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@PublishedApi
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internal fun <T> primitiveArrayConcat(vararg args: T): T {
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var size_local = 0
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for (i in 0 .. (args.size - 1)) {
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size_local += args[i].unsafeCast<Array<Any?>>().size
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}
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val a = args[0]
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val result = js("new a.constructor(size_local)").unsafeCast<Array<Any?>>()
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if (a.asDynamic().`$type$` != null) {
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withType(a.asDynamic().`$type$`, result)
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}
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size_local = 0
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for (i in 0 .. (args.size - 1)) {
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val arr = args[i].unsafeCast<Array<Any?>>()
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for (j in 0 .. (arr.size - 1)) {
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result[size_local++] = arr[j]
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}
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}
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return result.unsafeCast<T>()
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}
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internal fun <T> taggedArrayCopy(array: dynamic): T {
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val res = array.slice()
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res.`$type$` = array.`$type$`
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return res.unsafeCast<T>()
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}
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@PublishedApi
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@Suppress("NOTHING_TO_INLINE")
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internal inline fun withType(type: String, array: dynamic): dynamic {
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array.`$type$` = type
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return array
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}
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