Ilya Gorbunov
42 lines
1.1 KiB
Kotlin
42 lines
1.1 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 kotlin.js
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internal annotation class DoNotIntrinsify
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@PublishedApi
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@DoNotIntrinsify
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internal fun charSequenceGet(a: CharSequence, index: Int): Char {
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return if (isString(a)) {
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Char(a.asDynamic().charCodeAt(index).unsafeCast<Int>())
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} else {
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a[index]
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}
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}
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@PublishedApi
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@DoNotIntrinsify
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internal fun charSequenceLength(a: CharSequence): Int {
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return if (isString(a)) {
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a.asDynamic().length.unsafeCast<Int>()
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} else {
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a.length
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}
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}
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@PublishedApi
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@DoNotIntrinsify
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internal fun charSequenceSubSequence(a: CharSequence, startIndex: Int, endIndex: Int): CharSequence {
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return if (isString(a)) {
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a.asDynamic().substring(startIndex, endIndex).unsafeCast<String>()
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} else {
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a.subSequence(startIndex, endIndex)
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}
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}
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// Keeping this function as separate non-inline to intrincify `is` operator
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internal fun isString(a: CharSequence) = a is String
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