Marzipan Cheatsheet and Workarounds

cheatsheet.md

Marzipan Cheatsheet

Want to avoid going through manually and finding every single missing framework, method, or issue? Use this quick cheatsheet to check your code for any issues before building on Marzipan.

Unavailable Frameworks

Apple

• AppKit (possible via lldb but not recommended)
• AddressBook/Contacts/ContactsUI
• CoreTelephony (CTTelephonyNetworkInfo)
• CloudKit (couldn't get it working)
• GameplayKit
• IntentsUI (Intents seems to work)
• LocalAuthentication
• MessageUI (MFMailComposeViewController)
• Photos (causes AppKit to load)
• SafariServices (SFSafariViewController)
• Social (SLComposeViewController)

Third Party

• Firebase by Google
• Realm (immediate crash)
• SwiftEntryKit
• WeScan

Unavailable Methods/Properties

UIKit

• accessibilityIgnoresInvertColors (Invert Colors)
• UIDocumentBrowser
• UINotificationFeedbackGenerator (Haptic Feedback)
• UIPrintInfo (Printing)
• UIWebView

Other

• -[NSFont isSystemFont] (Used in Dynamic Text) [Import file below to fix]

---

MarzipanWorkarounds.swift

import UIKit

// Fix missing selectors on NSFont
extension NSObject {
    @objc func isSystemFont() -> Bool {
        return false
    }

    @objc func _fontAdjustedForContentSizeCategoryCompatible(withTraitCollection arg1: Any?) -> Any? {
        return self
    }
}

// Fix center text alignment
enum NSTextAlignment: Int {
    case left = 0 // Visually left aligned
    #if TARGET_OS_IPHONE
    case center = 1 // Visually centered
    case right = 2 // Visually right aligned
    #else
    case right = 1 // Visually right aligned
    case center = 2 // Visually centered
    #endif
    case justified = 3 // Fully-justified. The last line in a paragraph is natural-aligned
    case natural = 4 // Indicates the default alignment for script
}