[swift-evolution] [proposal] Either in the Swift Standard Library

Erica Sadun erica at ericasadun.com
Fri Jan 29 11:13:25 CST 2016

> On Jan 29, 2016, at 9:53 AM, Dave Abrahams via swift-evolution <swift-evolution at swift.org> wrote:
> on Thu Jan 28 2016, Craig Cruden <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> So to summarize….
>> Either is too specialized and thus not a good add…
> I would say the opposite; what most people think of as Either is not
> specialized enough, because it has no concrete semantics attached.


Result has a specific compelling use-case in threaded completion blocks.

-- E

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