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/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
/** Concat regular Array's and TypedArray's into an Array.
*/
@PublishedApi
internal fun <T> arrayConcat(vararg args: T): T {
val len = args.size
val typed = js("Array(len)").unsafeCast<Array<T>>()
for (i in 0 .. (len - 1)) {
val arr = args[i]
if (arr !is Array<*>) {
typed[i] = js("[]").slice.call(arr)
} else {
typed[i] = arr
}
}
return js("[]").concat.apply(js("[]"), typed);
}
/** Concat primitive arrays. Main use: prepare vararg arguments.
*/
@PublishedApi
internal fun <T> primitiveArrayConcat(vararg args: T): T {
var size = 0
for (i in 0 .. (args.size - 1)) {
size += args[i].unsafeCast<Array<Any?>>().size
}
val a = args[0]
val result = js("new a.constructor(size)").unsafeCast<Array<Any?>>()
if (a.asDynamic().`$type$` != null) {
withType(a.asDynamic().`$type$`, result)
}
size = 0
for (i in 0 .. (args.size - 1)) {
val arr = args[i].unsafeCast<Array<Any?>>()
for (j in 0 .. (arr.size - 1)) {
result[size++] = arr[j]
}
}
return result.unsafeCast<T>()
}
@PublishedApi
internal inline fun withType(type: String, array: dynamic): dynamic {
array.`$type$` = type
return array
}
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