Segmentation fault 11

Hook.swift

protocol Hook {
    var matchingPaths: [Int : String] { get }
    var matchingVars: [Int : String] { get }
    
    func match(pathComponents: [String]) -> String?
}


extension Hook {
    func match(pathComponents: [String], queryString: String) -> String? {
        return nil
    }
}

struct UniversalLinkHook: Hook {
    let matchingPaths: [Int : String]
    let matchingVars: [Int : String]
    
    init(string: String) {
        //        (matchingPaths, matchingVars) = parseHook(string)
        matchingPaths = [Int : String]()
        matchingVars = [Int : String]()
    }
}