...ability to call that constructor with the template this parameter.

Which means the user derived...

...introspection in general and not just for template constraints. For instance, if you were trying...

...myself.

[1]: https://dlang.org/spec/template.html#template_this_parameter
[2]: https://issues.dlang...

...Dennis <dkorpel@live.nl> ---
Usually when a template function accepts a generic struct/class, the...

I'm fully aware of template this parameters, I was trying to get them to...

There is the curious recurring template pattern of course.

...Parent < Child)``

This will also work with template parameters:

```d
void func(T > Parent)(T...

...could do > and < comparison of types in template parameters and is expressions.

Which could be...

...struct inheritance can do so with a template constraint and a __traits trait just like...

Problem is, template parameters also should work, using ``Child : Parent`` syntax.

Otherwise the usability on...