Here's another proposal to reinstate mixed-optional versions of ==/!=/===/!==, assuming that coercion is removed: https://github.com/apple/swift-evolution/pull/426
Jacob On Tue, Jul 12, 2016 at 11:29 AM, Chris Lattner <[email protected]> wrote: > > On Jul 12, 2016, at 10:26 AM, Jacob Bandes-Storch <[email protected]> > wrote: > > I've submitted a PR for my proposal to remove these versions of </<=/>/>= > at https://github.com/apple/swift-evolution/pull/425. > > > Thanks, LGTM, I merged and kicked it off. > > -Chris > > > On Tue, Jul 12, 2016 at 12:03 AM, Jacob Bandes-Storch <[email protected]> > wrote: > >> On Mon, Jul 11, 2016 at 9:54 PM, Chris Lattner <[email protected]> >> wrote: >> >>> >>> On Jul 11, 2016, at 9:35 PM, Mark Lacey <[email protected]> wrote: >>> >>> >>> On Jul 11, 2016, at 9:12 PM, Chris Lattner via swift-evolution < >>> [email protected]> wrote: >>> >>> >>> On Jul 11, 2016, at 8:14 PM, Jacob Bandes-Storch via swift-evolution < >>> [email protected]> wrote: >>> >>> You'd have to unwrap it, or use the ??/==/!= operators: >>> https://gist.github.com/jtbandes/9d88cc83ceceb6c62f38 >>> >>> I'd be okay with </<=/>/>= returning Bool?, as I suggested in an older >>> email (which somehow didn't make it to gmane's archive, but it's quoted in >>> some >>> other messages >>> <http://thread.gmane.org/gmane.comp.lang.swift.evolution/10095>). I >>> think it would be more convenient in some cases than unwrapping the >>> individual values before comparing them. >>> >>> >>> I’d be strongly opposed to those operator returning “Bool?”. Doing so >>> would prevent conforming to Comparable and would be extremely surprising. >>> >>> -Chris >>> >>> >>> I just pushed the current draft of the proposal: >>> https://github.com/rudkx/swift-evolution/blob/eliminate-value-to-optional-coercion/proposals/0000-disallow-value-to-optional-coercion-in-operator-arguments.md >>> >>> I haven’t addressed removal of the ordered comparison operators. I >>> suspect this should be a separate proposal, but I can roll that into this >>> one if it’s desired. >>> >>> I’ll update the proposal as the discussion continues until it’s selected >>> for review. >>> >>> >>> I think it makes sense to keep removal of the non-equality comparisons a >>> separate proposal. >>> >> >> Here's a draft. Feedback welcome: >> >> >> https://github.com/jtbandes/swift-evolution/blob/master/proposals/0122-remove-optional-comparison-operators.md >> >> > >
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