[swift-evolution] ed/ing, InPlace, Set/SetAlgebra naming resolution

[Jacob Bandes-Storch]

Just thinking out loud here:

"x's intersection with y" makes sense. So "x.intersection(with: y)" makes
sense.  That's already in Dave's diff.

Unfortunately the same doesn't work well for "x's union with y" — should
"x.union(with: y)" be a mutating or nonmutating operation? Hard to tell.

How about we just move to ∪ and ∪= operators and call it a day? :-)

On Thu, Feb 11, 2016 at 11:36 AM, Erica Sadun <erica at ericasadun.com> wrote:

> Assuming one would want to avoid the -ed suffix (and also -ing), one might
> consider:
>
> * intersectionOf(), orOf(), unionOf() (or "With" over "Of")
> * setIntersection(), setOr(), setUnion(),
> * intersectionResult(), orResult(), unionResult(),
> etc
>
> -- E
>
>
> On Feb 11, 2016, at 12:28 PM, Jacob Bandes-Storch <jtbandes at gmail.com>
> wrote:
>
> "intersected" sounds okay to me. "unioned" is borderline, and "ored" is
> not something I'd want in the standard library. Neither is "oring".
>
> On Thu, Feb 11, 2016 at 11:25 AM, Erica Sadun <erica at ericasadun.com>
> wrote:
>
>> I see the -ed versions as short for -edSet, with the Set being implied.
>> Under this reasoning, unioned == unionedSet, intersected == intersectedSet,
>> thus acting as nouns not verbs, and used for non-mutating application.
>>
>> inPlace is only for mutating application. I mildly prefer the shorter
>> union to unionInPlace, although I could argue both sides. (The latter is
>> clearer but longer, the former is the short verb action that the whole
>> guideline thing is supposed to endorse.)
>>
>> -- E
>>
>> On Feb 11, 2016, at 12:19 PM, Jacob Bandes-Storch <jtbandes at gmail.com>
>> wrote:
>>
>> On Thu, Feb 11, 2016 at 11:09 AM, Erica Sadun via swift-evolution <
>> swift-evolution at swift.org> wrote:
>>>
>>> *Non-Mutating, returning new value*: unioned(with), intersected(with),
>>> exclusiveOred(with)
>>>
>>> Reasoning:
>>>
>>> * *I think the -ing endings sound unnatural, stilted, and
>>> unmathematical. *They make me wince.
>>>
>>
>> So do the -ed versions, IMO. That's why -InPlace is such a convenient
>> suffix.
>>
>> Jacob
>>
>>
>>
>
>
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