I'm curious how this could work. I have two classes. TargetData and DataLayout.
I want to point all uses of TargetData at DataLayout. typedef won't work not just because of forward declarations, but also because of static functions. So, I could define DataLayout as a subclass of TargetData, but once I want to move to DataLayout, how do I define TargetData in a way that won't require changes to many many locations. Micah From: Kim Gräsman [mailto:[email protected]] Sent: Thursday, October 04, 2012 1:33 PM To: Villmow, Micah Cc: Chris Lattner; Evan Cheng; [email protected] LLVM; [email protected] cfe; Nadav Rotem Subject: Re: [cfe-commits] [llvm-commits] [Patch] Move TargetData from Target to Support/VMCore HI Micah, On Thursday, October 4, 2012, Villmow, Micah wrote: Chris, the problem with steps #2/#3 is that plenty of clients have forward declarations of TargetData and the typedef won't work in this case, so I need to update the clients anyways. One trick I've used as an alternative to typedefs is to just derive from the old class, e.g. class NewName : public TargetData {}; This is forward-declarable just as well as TargetData itself. FWIW, - Kim
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