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54 Commits

Author SHA1 Message Date
Joe Groff
5f676656a0 Runtime: Fill in the hooks to be able to use an NSError as an ErrorType. 
Swift SVN r26702
 2015-03-29 15:44:35 +00:00
Joe Groff
89e0fbf7ff Runtime: Support casting into and out of ErrorType boxes. 
Swift SVN r26619
 2015-03-27 02:09:49 +00:00
Joe Groff
b7f84a68d7 Runtime: Allocate Swift errors as an NSError subclass. 
After some more discussion with John, we decided that subclassing is the only realistic option, at least until we eventually are able to integrate with the OS. Switch things around to allocate Swift error boxes as an ObjC subclass that contains the error value instead of trying to game it as a CFError.

Swift SVN r26562
 2015-03-25 23:02:57 +00:00
Joe Groff
668928cc83 Runtime: Handle ErrorType's layout in ExistentialTypeMetadata accessors. 
Teach ExistentialTypeMetadata how to project out the value pointer, type metadata, and protocol witness table from ErrorType containers. NFC yet; the dynamic casting and reflection machinery needs further work to correctly handle ErrorType boxes.

Swift SVN r26509
 2015-03-25 00:56:16 +00:00