Tuple DIP

[Timon Gehr]

On 16.01.2018 22:03, aliak wrote:
> On Friday, 12 January 2018 at 22:44:48 UTC, Timon Gehr wrote:
>> As promised [1], I have started setting up a DIP to improve tuple 
>> ergonomics in D:
>>
>> https://github.com/tgehr/DIPs/blob/tuple-syntax/DIPs/DIP1xxx-tg.md
>> ...
>>
> 
> Oh Yes!
> 
> Question, would named tuples be able to be worked in or is that way out 
> of scope? I.e. something for this use case:
> 
> alias Color = Tuple!(int, "r", int, "g", int, "b");
> Color f(Color input);
> auto color = f(Color(1, 2, 3));
> writeln(color.r);
> 
> Very handy with general graphics stuff, Point, Vector, etc
> 
> Or for getting enumerate type functionality?
> range.enumerate() // Tuple!(int, "index", T, "value)
> 
> So would we be able to work in something like:
> 
> (r: int, g: int, b: int) f(int r, int g, int b) {
>      return (100, 200, 150);
> }
> 
> // Or more consistent with function syntax?
> (int r, int g, int b) f(int r, int g, int b) {
>      return (100, 200, 150);
> }
> 
> // And how about auto return named tuples?
> auto f(int r, int g, int b) {
>      return (r: 100, g: 200, z: 150);
> }
> 
> 

My thoughts were:
http://forum.dlang.org/post/p3e4al$1jfc$1@digitalmars.com

But as it has been requested more than once and it is a feature of 
existing Phobos tuples, I can add a proposal to the DIP that can be 
accepted/rejected independently, and add a few words to the 
"limitations" section.