UFCS for arguments other than first?

[Heisenberg via Digitalmars-d]

On Friday, 11 November 2016 at 21:51:29 UTC, John Colvin wrote:
> On Friday, 11 November 2016 at 18:33:09 UTC, Heisenberg wrote:
>> On Friday, 11 November 2016 at 17:07:50 UTC, John Colvin wrote:
>>> I'm sure there are loads of corner cases this doesn't cover, 
>>> but:
>>>
>>> template inPos(uint n, alias f)
>>> {
>>>     auto inPos(Args...)(auto ref Args args)
>>>     {
>>>         return f(args[1 .. n+1], args[0], args[n+1 .. $]);
>>>     }
>>> }
>>>
>>> import std.stdio;
>>> alias formatSecond = inPos!(1, writefln);
>>>
>>> void main()
>>> {
>>>
>>>     1.writeln(2,3,4,5);
>>>     1.inPos!(2, writeln)(2,3,4,5);
>>>
>>>     42.formatSecond("The answer is %d");
>>> }
>>>
>>> and of course you could easily develop more powerful 
>>> templates that could do any other order manipulations you 
>>> like.
>>
>> That might be a solution as well. Specifying the position near 
>> the variable will make the code much more straightforward to 
>> read though, while not forcing the programmer to declare 
>> separate templates in order to specify the position of a 
>> function's argument..
>
> Not sure if either of those reasons are language-change worthy.

Isn't the whole point of UFCS implementation in providing better 
re-usability and scalability, helping the encapsulation, making 
the chaining of function calls easier?

- 
http://www.drdobbs.com/cpp/uniform-function-call-syntax/232700394
- 
https://forum.dlang.org/reply/ldlgoxuivwinqimtatqq@forum.dlang.org