[swift-evolution] [SR-933] Rename flatten to flattened

[David Rönnqvist]

By “the big three”, are you referring to only the naming of map, filter, and reduce? 

I would also like to see a formal proposal along these lines, and possibly more. 

I also feel that the `inPlace` suffix was very clear (most important) and very much liked that it made the immutable version the default (less important). It manages to describe the distinction between `union`/`unionInPlace` and `sort`/`sortInPlace` in the name itself. To me, the `ed`/`ing` difference is much more subtle and favors people who are familiar with English grammar. One can argue that `sort` is both imperative and functional, and that because of [either side] the default should be [mutable/immutable]. Both arguments are valid. 

- David

> On 15 Apr 2016, at 18:31, Erica Sadun via swift-evolution <swift-evolution at swift.org> wrote:
> 
>> 
>> On Apr 15, 2016, at 10:17 AM, Антон Жилин via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> 
>> I've already expressed these concerns, but nobody noticed, apparently. Here is it:
>> 
>> I think current -ed/-ing convention is ugly. It breaks syntactic correctness, experience from other languages, mathematical notation and functional idioms.
>> 
>> `InPlace` suffix was so far more correct in these terms. We can make anything a convention, but should we?
>> I liked the proposal about new naming conventions, but overlooked this change.
>> 
>> Many people will agree with me. This still can be reviewed until Swift 3.
>> If so, I will create a proposal to correct "the big three" in this.
>> 
>> What do you think?
> 
> I would like to see a formal proposal along these lines. My other suggestions are here <http://ericasadun.com/2016/04/13/stop-the-madness-and-fix-the-swift-api-guidelines/>.
> 
> -- E
> 
> 
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