OK, so I’ve cleaned up the commit history for the NSCoding branch, you can find
it here still:
https://github.com/lhoward/swift-corelibs-foundation/tree/lhoward/nscoding
<https://github.com/lhoward/swift-corelibs-foundation/tree/lhoward/nscoding>
I haven’t opened a pull request as I’d like to get it working on Linux first.
Having a bit of trouble though. (I’m using Ubuntu 15.10 with the latest
snapshot.)
Firstly, build-wise:
* Changing anything in Foundation/ seems to trigger a recompile of everything
Swift. Is there a way to do correct dependency analysis? My clock is OK.
* swift/utils/build-script with —debug-foundation still seems to build a
release version. I worked around by building everything debug, but that takes
up a lot of disk space.
* lldb crashes all the time when printing variables (actually I also see this
on OS X as well with the snapshot)
Related to testing:
* Something weird is going on with casting over which completely breaks
NSKeyedArchiver. I can reproduce it with the following:
let foo = (NSMutableArray() as? AnyObject) as? NSCoding
which the compiler tells me always succeeds (as I believe it should), but at
runtime returns foo==nil. No issue if it is a locally defined class that
conforms to NSCoding. It’s failing in _dynamicCastToExistential()’s check for
_conformsToProtocols() but I haven’t dug deeper yet.
FYI: my LD_LIBRARY_PATH is pointing to the right libswiftCore/libFoundation. I
removed the module maps for Foundation/CoreFoundation from the snapshot
directory.
* Subclassing NSObject fails outside Foundation (see SR-272) is also an issue
but not a blocking one
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