How to convert a swift String to CFString

Question

How can i create a CFString from a native swift String or NSString in swift

    let path:String = NSBundle.mainBundle().pathForResource(name.stringByDeletingPathExtension, ofType:"pdf")     let string:CFString = ??? path     let url:CFURLRef = CFURLCreateWithFileSystemPath(allocator:kCFAllocatorDefault, filePath:string, pathStyle:CFURLPathStyle.CFURLPOSIXPathStyle, isDirectory:false) 

Answer 1

Just cast it:

var str = "Hello, playground" as CFString NSString(format: "type id: %d", CFGetTypeID(str)) 

Note that you'll need import Foundation for cast as CFString to work.
Otherwise if you only have import CoreFoundation, you'll need to force cast as! CFString.

Answer 2

If you want to convert a non-literal string, you have to cast it to NSString.

let replacement = "World" let string = "Hello, \(replacement)"  let cfstring:CFString = string as NSString 

Swift knows how to convert a swift string to an NSString and an NSString to a CFString, but seems not to know how to do both steps in one.