Open Radar

 
Summary:
Attempting to create an "ExtAudioFileOpenURL" from Swift causes the program to subsequently crash with a memory-related error.

Steps to Reproduce:
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	import AVFoundation

	let path = NSBundle.mainBundle().pathForSoundResource( "Glass.aiff" )
	let audio_path = NSURL.fileURLWithPath( path )          

	var unmanaged_audio_file: Unmanaged<ExtAudioFile>?
	var err = ExtAudioFileOpenURL( audio_path, &unmanaged_audio_file )
	var audio_file: ExtAudioFile = unmanaged_audio_file!.takeRetainedValue()
          
	println( "ExtAudioFileOpenURL error code: \(err)" )

	ExtAudioFileDispose( audio_file )
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Expected Results:
I expect to see the output "ExtAudioFileOpenURL error code: 0"

Actual Results:
While I do see the output "ExtAudioFileOpenURL error code: 0", the program subsequently crashes: with the message: " EXC_BAD_ACCESS(code=1, address=0x...)"



Version:
 System Version:	OS X 10.9.3 (13D65)
 Kernel Version:	Darwin 13.2.0

Notes:
One of your engineers replied to my post in the Forums:

https://devforums.apple.com/message/977528#977528

"This is a bug in the Swift SDK. Swift thinks ExtAudioFileRef is a CoreFoundation-style object that can retained and released, but that is not true. Please file a bug report so we can fix that.
 
I can't think of any workaround that will convince Swift not to try to retain and release your ExtAudioFileRef objects."

Configuration:
Xcode Version 6.0 (6A215l)