fortmarek

static var attributes: [String] = []

static func preprocess(_ arguments: [String]) throws {
     ...
     let attributes: [String] = try JSONDecoder().decode([String].self, from: data)
     Scaffold.attributes = attributes
}

fortmarek

extension Scaffold: CustomReflectable {
    var customMirror: Mirror {
         // #1
         let attributesChildren: [Mirror.Child] = Scaffold.attributes
         // #2
         .map {
             (name: $0, option: Option<String>(name: .shortAndLong))
         }
         // #3
         .map {

fortmarek

@Option(name: .shortAndLong)
var name: String

fortmarek

enum CodingKeys: String, CodingKey {
     case template
}

init(from decoder: Decoder) throws {
     let container = try decoder.container(keyedBy: CodingKeys.self)
     template = try container.decode(Argument<String>.self, forKey: .template).wrappedValue
}

// Necessary for conforming ParsableArguments

fortmarek

enum CodingKeys: CodingKey {
     case template
     case dynamic(String)

     init?(stringValue: String) {
         switch stringValue {
         case "template":
             self = .template
         case stringValue where Scaffold.attributes.contains(stringValue):
             self = .dynamic(stringValue)

fortmarek

func run() throws {
    print(template)
    print(attributes)
}