Extension properties for companion object of usual class.md

Extension properties for companion object of usual class

The property can be accessed through the companion object.

Explanations

On the Kotlin side, they declared an extension property for the companion object of a regular class:

class ExtensionPropertiesCompanionObjectUsualClass {
    companion object {
    }
}

val ExtensionPropertiesCompanionObjectUsualClass.Companion.EXT_PROP: String get() = "456"

From Swift, this property is accessed through an object companion, which can be accessed through a class:

ExtensionPropertiesCompanionObjectUsualClass.companion.EXT_PROP

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