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28 lines
895 B
Kotlin
28 lines
895 B
Kotlin
/*
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* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
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* 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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fun numberToByte(a: dynamic): Byte = toByte(numberToInt(a))
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fun numberToDouble(a: dynamic): Double = js("+a").unsafeCast<Double>()
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fun numberToInt(a: dynamic): Int = doubleToInt(a)
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fun numberToShort(a: dynamic): Short = toShort(numberToInt(a))
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// << and >> shifts are used to preserve sign of the number
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fun toByte(a: dynamic): Byte = js("a << 24 >> 24").unsafeCast<Byte>()
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fun toShort(a: dynamic): Short = js("a << 16 >> 16").unsafeCast<Short>()
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fun numberToLong(a: dynamic): Long = fromNumber(a)
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fun toLong(a: dynamic): Long = fromInt(a)
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fun doubleToInt(a: dynamic) = js("""
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if (a > 2147483647) return 2147483647;
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if (a < -2147483648) return -2147483648;
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return a | 0;
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""").unsafeCast<Int>() |