A type that can be initialized without any parameters.

EmptyInitializable.swift

/// Types that can be initialized without any parameters.
/// Useful if you need to accept an array of metatypes and then initialize them.
protocol EmptyInitializable {
	init()
}

extension Int: EmptyInitializable {}
extension Int8: EmptyInitializable {}
extension Int16: EmptyInitializable {}
extension Int32: EmptyInitializable {}
extension Int64: EmptyInitializable {}
extension Double: EmptyInitializable {}
extension Float: EmptyInitializable {}
extension Float80: EmptyInitializable {}
extension String: EmptyInitializable {}
extension Dictionary: EmptyInitializable {}
extension Set: EmptyInitializable {}
extension NSString: EmptyInitializable {}
extension NSAttributedString: EmptyInitializable {}
extension NSImage: EmptyInitializable {}
extension NSURL: EmptyInitializable {}
extension NSColor: EmptyInitializable {}
extension NSSound: EmptyInitializable {}
extension NSFilePromiseProvider: EmptyInitializable {}
extension NSPasteboardItem: EmptyInitializable {}

extension URL: EmptyInitializable {
	init() {
		self.init(string: ".")!
	}
}