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Joe Groff dfac9181dd Runtime: Add ObjC weak referencing support to SwiftObject. 
We were missing -_tryRetain, -_isDeallocating, -allowsWeakReference and -retainWeakReference implementations on SwiftObject, so forming an ObjC weak reference to a pure Swift object always failed and produced a nil reference. Fixes rdar://problem/18637774.

This can be reapplied now that we properly call objc_destructInstance on deallocation.

Swift SVN r23070
2014-11-02 21:03:21 +00:00
..
module.map
Runtime: Add ObjC weak referencing support to SwiftObject.
2014-11-02 21:03:21 +00:00
ObjCWeak.h
Runtime: Add ObjC weak referencing support to SwiftObject.
2014-11-02 21:03:21 +00:00
ObjCWeak.m
Runtime: Add ObjC weak referencing support to SwiftObject.
2014-11-02 21:03:21 +00:00