In Swift fileExistsAtPath(_ path: String, isDirectory isDirectory: UnsafeMutablePointer<ObjCBool>) -> Bool accepts single parameter only

Question

The method fileExistsAtPath() in the example below accept single argument only.

if fm.fileExistsAtPath(result, isDirectory:&isDir) {

The exact error message is: "Extra argument 'isDirectory' in call".

Any idea what's wrong?

Answer 1

The problem is that isDirectory is UnsafeMutablePointer<ObjCBool> and not UnsafeMutablePointer<Bool> you provide. You can use the following code:

var isDir = ObjCBool(false)
if NSFileManager.defaultManager().fileExistsAtPath("", isDirectory: &isDir) {

}

if isDir.boolValue {

}

Answer 2

Some might find this a little neater. This is Swift 3.

var directory: ObjCBool = ObjCBool(false)
var exists: Bool = FileManager.default.fileExists(atPath: "…", isDirectory: &directory)

if exists && directory.boolValue {
    // Exists. Directory.
} else if exists {
    // Exists.
}

Answer 3

It is

func isDirectory(path: String) -> Bool {
  var isDirectory: ObjCBool = false
  NSFileManager().fileExistsAtPath(path, isDirectory: &isDirectory)
  return Bool(isDirectory)
}