Swift 2: Crash in Mirror(reflecting:).children

Number:rdar://22866270 Date Originated:25-Sep-2015 05:14 PM
Status:Resolved Resolved:11-Jan-2016 10:00 AM
Product:Developer Tools Product Version:Xcode-7 (7A218)
Classification:Crash/Hang/Data Loss Reproducible:Always
Passing some values to Mirror(reflecting:).children causes an EXC_BAD_ACCESS.

Steps to Reproduce:
1. Clone https://github.com/realm/realm-cocoa/tree/jp-reflection-bug
2. open RealmSwift.xcodeproj
3. Run unit tests with the RealmSwift scheme and Mac target

Repeat until crash.

Expected Results:
Tests pass.

Actual Results:
Accessing the reflection of a Swift object causes a crash.

The tests pass prior to the last commit of the jp-reflection-bug branch.


This appears to be fixed as of Xcode 7.3 beta (7D111g).

Also see https://github.com/realm/realm-cocoa/issues/2528 for more details. I apologize for not being able to further minimize the repro case.

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