> On Apr 22, 2016, at 2:36 PM, Charles Srstka via swift-evolution > <[email protected]> wrote: > > One comment: > > "In the most common case where a developer does not provide a custom > reference type, then the backing store is our existing NSData and > NSMutableData implementations. This consolidates logic into one place and > provides cheap bridging in many cases (see Bridging for more information).” > > Would it not be more efficient to bridge to the C-based CFData and > CFMutableData implementations instead, to avoid the object overhead?
Not necessarily. Foundation often has less overhead than CF nowadays. -- Greg Parker [email protected] <mailto:[email protected]> Runtime Wrangler
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