NSRunningApplication executableURL issue in Swift
NSRunningApplication executableURL issue in Swift
- Subject: NSRunningApplication executableURL issue in Swift
- From: Bill Cheeseman <email@hidden>
- Date: Tue, 10 Mar 2015 12:24:21 -0400
I'm using Xcode 6.2 and Swift 1.1.
1. The following statement reports the error "'NSURL?' does not have a member named 'path'" even though executableURL has a trailing exclamation point to unwrap it. The caret identifying the location of the error is placed under the exclamation point.
for thisApp in NSWorkspace.sharedWorkspace().runningApplications {
let thisPath = thisApp.executableURL!.path // ERROR
}
If I change executableURL to bundleURL, the error goes away. Yet executableURL and bundleURL are declared identically according to the NSRunningApplication reference document. As far as I know, bundleURL and executableURL both satisfy fileURL.
The error also goes away if I assign thisApp to a local variable and expressly downcast it to NSRunningApplication, as shown below. Why would I need to do that with executableURL, when it isn't necessary with bundleURL?
for thisApp in NSWorkspace.sharedWorkspace().runningApplications {
let myAppAndIMeanIt = thisApp as NSRunningApplication
let thisPath = myAppAndIMeanIt.executableURL!.path // NO ERROR
}
Is this a Swift bug?
2. Is executableURL suitable to get the URL to a flat-file (non-bundled) application? Or is it only intended to get the executable inside of an application bundle? I have always assumed the former, because NSRunningApplication handles LSUIElement and LSBackgroundOnly applications as well as ordinary foreground applications, but the reference document doesn't say and I can't find any discussion.
3. Are there any flat-file (non-bundled) applications out there any longer? I think I've noticed some in the System folder.
--
Bill Cheeseman - email@hidden
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