Aerial/Source/Views/Sources/SourceOutlineView.swift
Force casts should be avoided Open
Open
return (self.delegate as! SourceOutlineViewDelegate).outlineView(outlineView: self, menuForItem: item)- Read upRead up
- Exclude checks
forced-type-cast
Avoid using the forced form of the type cast operator (as!) because Swift is not able to determine at compile time if the type conversion will succeed. In the event of an unsuccessful conversion, a runtime error will be triggered. The conditional form of the type cast operator (as?) is safer and should be used when possible.
Preferred
if let movie = item as? Movie {
print("Movie: '\(movie.name)', dir. \(movie.director)")
}Not Preferred
let movie = item as! Movie
print("Movie: '\(movie.name)', dir. \(movie.director)")