Inspect NSObject private properties and methods

NSObject+allMethods+allProperties.swift

extension NSObject {
    var __methods: [Selector] {
        var methodCount: UInt32 = 0
        guard
            let methodList = class_copyMethodList(type(of: self), &methodCount),
            methodCount != 0
        else { return [] }
        return (0 ..< Int(methodCount))
            .compactMap({ method_getName(methodList[$0]) })
    }

    var __properties: Any {
        var propertiesCount: UInt32 = 0
        guard
            let propertiesList = class_copyPropertyList(type(of: self), &propertiesCount),
            propertiesCount != 0
        else { return [] }
        return (0 ..< Int(propertiesCount))
            .compactMap({ property_getName(propertiesList[$0]) })
            .map({ NSString(cString: $0, encoding: NSUTF8StringEncoding) })
    }
}