ClassHasPropertyFunction

typealias ClassHasPropertyFunction = (jscClass: Class, context: Context, <Error class: unknown class>?, name: String) -> Boolean

The type of has_property in #JSCClassVTable. This is only required when you need to handle external properties not added to the prototype.

param jscClass a #JSCClass
param context a #JSCContext
param instance the @jsc_class instance
param name the property name
return true if @instance has a property with @name or false to forward the request to the parent class or prototype chain.