Why SnapKit has no closestCommonSuperview function?

[Chaselop]

Recently, I read the source code of Snapkit and Masonry, I find that Snapkit doesn't check two views's commonSuperview, but instead, Masonry has this func, why?

[check4ismail]

Hey @Chaselop,

Not sure why SnapKit doesn't have the closestCommonSuperview function - but nonetheless you can always build your own solution. Here's a closestCommonSuperview function I created without using any 3rd party libraries. Hope that helps!

func fetchClosestCommonSuperView(_ lhs: UIView, _ rhs: UIView) -> UIView? {
        var leftSuperViews: [UIView] = []
        var currentSuperView = lhs.superview
        while let superView = currentSuperView {
            leftSuperViews.append(superView)
            currentSuperView = currentSuperView?.superview
        }
        
        currentSuperView = rhs.superview
        while let superView = currentSuperView {
            if leftSuperViews.contains(superView) {
                return superView
            }
            
            currentSuperView = currentSuperView?.superview
        }
        
        return nil
}