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

[Thorsten Seitz]

"intersection should form a pair with „union“, both being a noun.

"unioning“ is a bad choice. AFAIK „union“ is only rarely used as verb, so its present participle just sounds … strange.


I’d like to repeat my suggestion:

mutating (verbs):
x.intersect(x)
x.add(x)
x.subtract(x)

nonmutating (nouns):
x.intersection(x)
x.union(x)
x.difference(x)


-Thorsten


> Am 11.02.2016 um 19:06 schrieb Joe Groff via swift-evolution <swift-evolution at swift.org>:
> 
> 
>> On Feb 11, 2016, at 8:52 AM, Dave Abrahams via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>> 
>> Hi All,
>> 
>> The API guidelines working group took up the issue of the InPlace suffix
>> yesterday, and decided that it was not to be used anywhere in the
>> standard library.  We are planning to apply the changes shown here
>> <https://gist.github.com/dabrahams/d872556291a3cb797bd5> to the API of
>> SetAlgebra (and consequently Set) to make it conform to the guidelines
>> under development.
>> 
>> Comments welcome as usual,
> 
> -///   - `x.intersect(x) == x`
> -///   - `x.intersect([]) == []`
> -///   - `x.union(x) == x`
> -///   - `x.union([]) == x`
> +///   - `x.intersection(with: x) == x`
> +///   - `x.intersection(with: []) == []`
> +///   - `x.unioning(with: x) == x`
> +///   - `x.unioning(with: []) == x`
> 
> What's with the (with:)? That seems like a pretty needless word. Same with 'of:' and friends.
> 
> -Joe
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