Lazy property value not initialized correctly after instantiation of a concrete subclass of a type-generic UIViewController
| Originator: | michele.titolo | ||
| Number: | rdar://23760739 | Date Originated: | 12/4/2015 |
| Status: | Open | Resolved: | |
| Product: | iOS SDK | Product Version: | iOS 9.1 |
| Classification: | Serious Bug | Reproducible: | Always |
Summary:
In the same vein of rdar://23737778, some kinds of lazy properties are not properly initialized when instantiating a concrete subclass of a type-generic UIVC.
I've been able to reproduce issues with String and Dictionary, yet Array works fine.
Just like in the other issue, the dictionary has technically been initialized and doing anything with it causes a crash:
(lldb) p someValues
([Int : String]) $R0 = {}
(lldb) p someValues.count
error: Execution was interrupted, reason: EXC_BAD_ACCESS (code=1, address=0x18).
A lazy string ends up empty but does not cause a crash:
(lldb) po someString
""
Steps to Reproduce:
1. Open example project
2. Build & run
3. Tap the button twice (due to rdar://23737527)
4. Crash!
Expected Results:
I expect lazy properties to be initialized appropriately
Actual Results:
They are not initialized appropriately.
Version:
iOS 9.1 & Xcode 7.1
Notes:
Configuration:
All
Attachments:
'StoryboardLazyFail.zip' was successfully uploaded.
http://cl.ly/2O003T063L3z
Comments
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