LLDB (Swift): Casting Raw Address into Usable Type

Question

Is there an LLDB command that can cast a raw address into a usable Swift class?

For example:

(lldb) po 0x7df67c50 as MKPinAnnotationView

Answer 1

Thanks to all the answers above, unsafeBitCast also works well with Xcode 8.3.2 / Swift 3 / macOS / Cocoa Application.

Memorize an address of current instance

(lldb) p tabView.controlTint
(NSControlTint) $R10 = defaultControlTint

(lldb) p self
(LearningStoryboard.NSTabViewController) $R11 = 0x00006080000e2280 {
.....

Later, examine them

(lldb) p unsafeBitCast(0x00006080000e2280, to: NSTabViewController.self).tabView.controlTint
(NSControlTint) $R20 = graphiteControlTint

(lldb) p $R11.tabView.controlTint
(NSControlTint) $R21 = graphiteControlTint

If something like this happens

(lldb) p unsafeBitCast(0x00006080000e2280, to: NSTabViewController.self).tabView.controlTint
error: use of undeclared identifier 'to'

(lldb) p $R11.tabView.controlTint 
error: use of undeclared identifier '$R11'

make sure that choose one of the stack frames of Swift source code rather than assembler one.

It is likely to happen when the application was paused by clicking a Pause button or stopped with an exception. By choosing a stack frame accordingly, let lldb infer a proper programing language.