• Gorge Jingale (10/10) Jul 30 2016 I like to build structures using template mixins because one can
• Nicholas Wilson (5/16) Jul 31 2016 I suppose you could have the template mixin define a unique key (

Gorge Jingale <Frifj mail.com> writes:

I like to build structures using template mixins because one can 
pick and choose functionality at compile time, but still have a 
relationship between different types.

It would be really nice if one could sort of test if a template 
mixin was "mixed" in(or ideally, struct S : SomeTemplate 
(template inheritance)).

While one can overcome a lot of the issues by doing static 
checking(e.g., does IsSomeTemplate compile or other introspective 
like checks), it is a bit messy and clutters up the code.

Does anyone do stuff like this and have a nice elegant way?

Nicholas Wilson <iamthewilsonator hotmail.com> writes:

On Sunday, 31 July 2016 at 03:04:27 UTC, Gorge Jingale wrote:
 I like to build structures using template mixins because one 
 can pick and choose functionality at compile time, but still 
 have a relationship between different types.

 It would be really nice if one could sort of test if a template 
 mixin was "mixed" in(or ideally, struct S : SomeTemplate 
 (template inheritance)).

 While one can overcome a lot of the issues by doing static 
 checking(e.g., does IsSomeTemplate compile or other 
 introspective like checks), it is a bit messy and clutters up 
 the code.

 Does anyone do stuff like this and have a nice elegant way?

I suppose you could have the template mixin define a unique key ( 
kinda like the current(?) std.random's isUniformRandom trick) for 
that mixin and then do 
is(hasMember!(S,someUniqueTemplateMixinName))