• Mike Parker (9/9) Mar 24 2022 Sometimes, simple looking template interfaces and implementations
• =?UTF-8?Q?Ali_=c3=87ehreli?= (22/24) Mar 27 2022 There is an opportunity for a minor optimization where the following

Mike Parker <aldacron gmail.com> writes:

Sometimes, simple looking template interfaces and implementations 
have a hidden cost in increased compile times. In his latest blog 
post, Max Haughton shows some of those cases, explains what 
causes the increase, and shows how to rewrite your templates when 
possible to alleviate the problem.

The blog:
https://dlang.org/blog/2022/03/24/reducing-template-compile-times/

Reddit:
https://www.reddit.com/r/programming/comments/tmewno/reducing_template_compile_times_in_dlang/

=?UTF-8?Q?Ali_=c3=87ehreli?= <acehreli yahoo.com> writes:

On 3/24/22 07:54, Mike Parker wrote:

 The blog:
 https://dlang.org/blog/2022/03/24/reducing-template-compile-times/

There is an opportunity for a minor optimization where the following 
code is introduced in the article.

To reduce code compiled for the non-unittest binary, I sometimes define 
types and import declarations needed only by unittests, inside 
version(unittest) blocks:

version (unittest) {        // <-- ADDED

import some_unittest_utils; // <-- Added example

struct JustInt
{
   int x;
}

}                           // <-- ADDED

static foreach(_; 0..5)
{
   unittest
   {
     JustInt value;
     value.send;
   }
}

Ali