[swift-evolution] [Pitch] Make Optional, Array, and Dictionary conditionally Equatable

Douglas Gregor dgregor at apple.com
Tue Nov 28 12:05:31 CST 2017

> On Nov 26, 2017, at 9:21 PM, John McCall <rjmccall at apple.com> wrote:
>> On Nov 22, 2017, at 1:08 PM, Douglas Gregor via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> Sent from my iPhone
>> On Nov 22, 2017, at 9:48 AM, Chris Lattner <clattner at nondot.org <mailto:clattner at nondot.org>> wrote:
>>> IMO this is obvious and you should put it in.
>>> The process serves a purpose: to ensure the evolution of the language is going in the right place, both directionally in an details.  It is obvious that we’re going to take this, and the details are clear, therefore doing an evolution cycle for this would just waste everyone’s time.
>> I’ve been leaning this way as well. We can treat this small addition as an amendment to SE-0143 so the change is documented appropriately. 
> Agreed.  I think bringing it up here and letting it "pass by acclamation" is the appropriate process; doing a separate proposal would be a waste.

To close the loop here, the core team has agreed to this as an amendment to SE-0143, and the changed has been merged here:


and we’ve merged the change into the Swift standard library for Swift 4.1, here:


	- Doug

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