Roman Artemev
45 lines
1.6 KiB
Kotlin
45 lines
1.6 KiB
Kotlin
/*
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* Copyright 2010-2020 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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import kotlin.reflect.KProperty
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internal fun getPropertyCallableRef(name: String, paramCount: Int, type: dynamic, getter: dynamic, setter: dynamic): KProperty<*> {
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getter.get = getter
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getter.set = setter
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getter.callableName = name
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return getPropertyRefClass(getter, getKPropMetadata(paramCount, setter, type)).unsafeCast<KProperty<*>>()
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}
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internal fun getLocalDelegateReference(name: String, type: dynamic, mutable: Boolean, lambda: dynamic): KProperty<*> {
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return getPropertyCallableRef(name, 0, type, lambda, if (mutable) lambda else null)
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}
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private fun getPropertyRefClass(obj: dynamic, metadata: dynamic): dynamic {
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obj.`$metadata$` = metadata;
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obj.constructor = obj;
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return obj;
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}
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private fun getKPropMetadata(paramCount: Int, setter: Any?, type: dynamic): dynamic {
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val mdata = propertyRefClassMetadataCache[paramCount][if (setter == null) 0 else 1]
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if (mdata.interfaces.length == 0) {
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mdata.interfaces.push(type)
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}
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return mdata
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}
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inline private fun metadataObject(): dynamic = js("{ kind: 'class', interfaces: [] }")
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private val propertyRefClassMetadataCache: Array<Array<dynamic>> = arrayOf<Array<dynamic>>(
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// immutable , mutable
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arrayOf<dynamic>(metadataObject(), metadataObject()), // 0
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arrayOf<dynamic>(metadataObject(), metadataObject()), // 1
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arrayOf<dynamic>(metadataObject(), metadataObject()) // 2
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)
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