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struct UsernameInputView: View {
    @State var username = ""
    var body: some View {
        TextField(username, text: $username)
    }
}

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struct UsernameView: View {
    let username: String
    var body: some View {
        Text(username)
    }
}

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view = f(state)

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//
//  RouteBuilder.swift
//  RouteBuilder
//
//  Created by Dino on 09/07/2019.
//  Copyright © 2019 Dino Srdoc. All rights reserved.
//

import Foundation

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//
//  ContentView.swift
//  SampleUI
//
//  Created by Dino on 26/06/2019.
//

// Source for the Observer class: https://www.reddit.com/r/swift/comments/c5pr0z/i_created_a_cool_utility_for_when_youre_working/
// Running this with the Xcode 11 Beta 2 causes the compiler to hang infinitely for me.
// Try it out!

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import Foundation

func measure(label: String, printResults output: Bool = true, _ block: @escaping () -> Void) -> Double {
    let numberOfTests = 5

    var avgExecutionTime : CFAbsoluteTime = 0

    for _ in 1...numberOfTests {
        let start = CFAbsoluteTimeGetCurrent()
        block()

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enum Validators {
    static let email: (UITextField) -> Bool = { textField in
        return textField.text?.trimmed.isValidEmailFormat() ?? false
    }
    
    static let phone: (UITextField) -> Bool = { textField in
        return textField.text?.trimmed.isValidPhoneNumber() ?? false
    }
    
    static let nonEmpty: (UITextField) -> Bool = { textField in

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statusItemController.onClick = { statusItem in
    DarkMode.toggle()
                                
    if DarkMode.isEnabled {
        statusItem.button?.title = "on"
    } else {
        statusItem.button?.title = "off"
    }
}

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@objc private func performClick(_ sender: Any) {
    onClick?(statusItem)
}

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init(statusItem: NSStatusItem) {
    self.statusItem = statusItem
    self.statusItem.button?.target = self
    self.statusItem.button?.action = #selector(performClick(_:))
}