Use '#if canImport(Gedatsu)' instead of '#if DEBUG'. Because when you want to use Gedatsu in multiple configurations, you don't have to change '#if' macros.

Below code, maybe you can reproduce the crash. I tried to test in iOS 12.2 and 13.5. In the lldb, po self.rawValue is 35.

It does not crash if translatesAutoresizingMaskIntoConstraints property of footerButton and footerView is false.

class ViewController: UITableViewController {
    let footerButton: UIButton = {
        let button = UIButton()
        button.setTitle("Button Label", for: .normal)
        return button
    }()
    lazy var footerView: UIView = {
        let view = UIView()
        view.addSubview(self.footerButton)
        NSLayoutConstraint.activate([
            footerButton.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            footerButton.centerYAnchor.constraint(equalTo: view.centerYAnchor),
            footerButton.topAnchor.constraint(equalTo: view.topAnchor, constant: 32)
        ])
        return view
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        tableView.tableFooterView = footerView
    }
}

What

Gedatsu Implementation first

• Hook stderr with DispatchSource event.
• Swizzle private API about UIView.engine:willBreakConstraint:dueToMutuallyExclusiveConstraints:

Memo

• NSFileHandler readabilityHandler and Notification event does not work well...
• _NSSetLogCStringFunction and _NSLogCStringFunction C functions does not work after iOS 11.
• UIView.engine:willBreakConstraint:dueToMutuallyExclusiveConstraints private API written by below object file.

$ nm /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore | grep dueToMutuallyExclusiveConstraints

Description

No using blank fatalError when pass through to switch ... @unknown default statement. Handling this exception about pre check attributes and relation is valid before buildHeader content. The reason for creation PR of this issue and it is closed: #26.

What

• Rename iOS example project directory
• Add macOS example project
• switching with #if os(iOS|macOS)
  • Confirm Pass test :tada:
• Adding and fix make command for macOS
• Separate Carthage project file

Why

reference: https://github.com/bannzai/Gedatsu/issues/18

Fix build error when use carthage

/Carthage/Checkouts/Gedatsu/Sources/Gedatsu/Gedatsu.swift:42:9: error: use of unresolved identifier 'gedatsuAssert'
        gedatsuAssert(data != nil)
        ^~~~~~~~~~~~~
/Carthage/Checkouts/Gedatsu/Sources/Gedatsu/Interceptor.swift:21:13: error: use of unresolved identifier 'gedatsuAssert'
            gedatsuAssert(false, "unexpected queue is empty", ignoreWarnLog: true)
            ^~~~~~~~~~~~~
/Carthage/Checkouts/Gedatsu/Sources/Gedatsu/UIViewExtension.swift:15:9: error: use of unresolved identifier 'gedatsuAssert'
        gedatsuAssert(Thread.isMainThread)
        ^~~~~~~~~~~~~
/Carthage/Checkouts/Gedatsu/Sources/Gedatsu/UIViewExtension.swift:16:9: error: use of unresolved identifier 'gedatsuAssert'
        gedatsuAssert(NSClassFromString("NSISEngine") == engine.classForCoder, "Unexpected receive argument for NSEngine")
        ^~~~~~~~~~~~~

** ARCHIVE FAILED **

I try to install Gedatsu through Carthage, but I can't install.

Here are the commands at runtime.

$ carthage update --platform iOS Gedatsu
Dependency "Gedatsu" has no shared framework schemes for any of the platforms: iOS

This is probably due to Gedatsu-Carthage.xcodeproj.