| /* |
| * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors. |
| * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file. |
| */ |
| |
| package kotlin.js |
| |
| |
| // Adopted from misc.js |
| |
| @OptIn(JsIntrinsic::class) |
| internal fun compareTo(a: dynamic, b: dynamic): Int = when (jsTypeOf(a)) { |
| "number" -> when { |
| jsTypeOf(b) == "number" -> |
| doubleCompareTo(a, b) |
| b is Long -> |
| doubleCompareTo(a, b.toDouble()) |
| else -> |
| primitiveCompareTo(a, b) |
| } |
| |
| "string", "boolean" -> primitiveCompareTo(a, b) |
| |
| else -> compareToDoNotIntrinsicify(a, b) |
| } |
| |
| @DoNotIntrinsify |
| private fun <T : Comparable<T>> compareToDoNotIntrinsicify(a: Comparable<T>, b: T) = |
| a.compareTo(b) |
| |
| internal fun primitiveCompareTo(a: dynamic, b: dynamic): Int = |
| when { |
| a < b -> -1 |
| a > b -> 1 |
| else -> 0 |
| } |
| |
| internal fun doubleCompareTo(a: dynamic, b: dynamic): Int = |
| when { |
| a < b -> -1 |
| a > b -> 1 |
| |
| a === b -> { |
| if (a !== 0) |
| 0 |
| else { |
| val ia = 1.asDynamic() / a |
| if (ia === 1.asDynamic() / b) { |
| 0 |
| } else if (ia < 0) { |
| -1 |
| } else { |
| 1 |
| } |
| } |
| } |
| |
| a !== a -> |
| if (b !== b) 0 else 1 |
| |
| else -> -1 |
| } |
