• Q. Schroll (16/16) Oct 30 2019 struct Example
• Simen =?UTF-8?B?S2rDpnLDpXM=?= (10/26) Oct 30 2019 It's a bug - filed as

Q. Schroll <qs.il.paperinik gmail.com> writes:

struct Example
{
     private void helper(int i, this X)() { }
     void funcTempl(T, this X)(T value)
     {
         this.helper!0();
     //  ^^^^^ Why do I need this?
     }
}

void main()
{
     auto ex = Example();
     ex.funcTempl(1);
}

The question is in the comment in the code. Is that intentional 
or a bug?

Simen =?UTF-8?B?S2rDpnLDpXM=?= <simen.kjaras gmail.com> writes:

On Wednesday, 30 October 2019 at 20:22:25 UTC, Q. Schroll wrote:
 struct Example
 {
     private void helper(int i, this X)() { }
     void funcTempl(T, this X)(T value)
     {
         this.helper!0();
     //  ^^^^^ Why do I need this?
     }
 }

 void main()
 {
     auto ex = Example();
     ex.funcTempl(1);
 }

 The question is in the comment in the code. Is that intentional 
 or a bug?

It's a bug - filed as 
https://issues.dlang.org/show_bug.cgi?id=20341.

However, note that typeof(this) inside funcTempl() is different 
from X, so that inside helper(), X will not be the same as in 
funcTempl(). To fix this, you will need to pass X on to helper as 
helper!(0, X). When you do this, you no longer need 'this.' in 
front of the instantiation.

--
   Simen