53 Commits

Author	SHA1	Message	Date
Joe Groff	9489605a8f	Enable vtable thunks. ... Swift SVN r24736	2015-01-26 21:52:20 +00:00
Joe Groff	05290abeb4	SILGen: Reuse vtable thunks from base class. ... If a grandchild class inherits a thunked override from the child class, use that thunk in the grandchild vtable too. Should round out the fix for rdar://problem/19321484. Swift SVN r24735	2015-01-26 21:52:20 +00:00
Joe Groff	a449948275	SILGen: Emit vtable thunks to handle optional variance. ... If a subclass overrides methods with variance in the optionality of non-class-type members, emit a thunk to handle wrapping more optional parameters or results and force-unwrapping any IUO parameters made non-optional in the derived. For this to be useful, we need IRGen to finally pay attention to SILVTables, but this is a step on the way to fixing rdar://problem/19321484. Swift SVN r24705	2015-01-24 05:21:26 +00:00