Type Introspection Experimenting

IntrospectionType.swift

import UIKit
import Foundation

struct IntrospectionType<T> {
    let classType: Bool
    let structType: Bool
    let introspectionType: T
    
    init(_ introspectionType: T) {
        self.introspectionType = introspectionType
        classType = false
        structType = true
    }
}

extension IntrospectionType where T: AnyObject {
    init(_ introspectionType: T) {
        self.introspectionType = introspectionType
        classType = true
        structType = false
    }
}


public struct Sugar<HostType> {
    public let host: HostType
    
    public init(host: HostType) {
        precondition(IntrospectionType<HostType>(host).structType)
        self.host = host
    }
}

public extension Sugar where HostType: AnyObject {
    public init(host: HostType) {
        precondition(IntrospectionType<HostType>(host).classType)
        self.host = host
    }
}

public protocol RXSObject: AnyObject {}

public extension RXSObject {
    typealias RxsSelfType = Self
    
    public var rxs: Sugar<RxsSelfType> { return Sugar(host: self) }
}

class SomeClassType: RXSObject {
    
}

struct SomeValueType {
    var rxs: Sugar<SomeValueType> { return Sugar(host: self) }
}


let c = SomeClassType()
c.rxs.host

let s = SomeValueType()
s.rxs.host