The semantics of the methods are fairly nuanced in ObjC. You can have a resource value that fails to be fetched, or one that succeeded to fetch but had no value. A Swift version would model this as `throws -> AnyObject?`.
For the dictionary version, you may ask for a resource value, it succeeds, but isn't included in the dictionary because it was `nil`. This version is modeled "fine" in Swift, but like you mentioned it also isn't available. Sorry for not being clear — the point was that it is desired for corelibs-Foundation to have the same API as Darwin-Foundation, as has been mentioned on this mailing list. Anything outside that has to be approved (internally to Apple, I think?), and this just hasn't been worked through yet. Unrelated, it also appears that the underlying versions (CFURLCopyResourcePropertyForKey and CFURLCopyResourcePropertiesForKeys) aren't included in corelibs-CoreFoundation. I have to imagine those are pretty platform-specific, but I can't comment on their conspicuous disappearance because I have no more knowledge than you do. ;) Zach On Thu, Mar 31, 2016, at 12:23 PM, Daniel Eggert wrote: > Well, there's > > func resourceValuesForKeys(_ keys: [String]) throws -> [String : > AnyObject] > > which doesn't use AutoreleasingUnsafeMutablePointer, but that doesn't > exist in Swift, either. > > And the other one could have a replacement like so: > > func resourceValue(forKey key: String) -> AnyObject throws > > The "NSURL resource value" API has 7 methods of which none exist in > SwiftFoundation. > > /Daniel > > > > > On 31 Mar 2016, at 15:37, Zach Waldowski via swift-corelibs-dev > > <swift-corelibs-dev@swift.org> wrote: > > > > You can't have AutoreleasingUnsafeMutablePointer without Objective-C > > interop. > > > > Zach > > > > On Thu, Mar 31, 2016, at 07:17 AM, Daniel Eggert via swift-corelibs-dev > > wrote: > >> What's the reason for the "resource value" API on NSURL not being present > >> in SwiftFoundation? > >> > >> /Daniel > >> > >> > >> func getResourceValue(_ value: > >> AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey key: String) throws > >> > >> _______________________________________________ > >> swift-corelibs-dev mailing list > >> swift-corelibs-dev@swift.org > >> https://lists.swift.org/mailman/listinfo/swift-corelibs-dev > > _______________________________________________ > > swift-corelibs-dev mailing list > > swift-corelibs-dev@swift.org > > https://lists.swift.org/mailman/listinfo/swift-corelibs-dev > _______________________________________________ swift-corelibs-dev mailing list swift-corelibs-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-corelibs-dev
