Templates and stringof...

[David Nadlinger]

On Saturday, 4 August 2012 at 10:08:34 UTC, Era Scarecrow wrote:
>> ---
>> mixin template BitfieldsOn(alias target, <…>) if 
>> (isIntegral!(typeof(target))) {
>>    mixin({
>>        string code;
>>        // Generate code using "target" as identifier.
>>        return code;
>>    }());
>> }
>>
>> mixin BitfieldsOn!(foo, <…>);
>
>  I really don't see how that is an improvement.

It's a sketch of an implementation for your template which 
actually works with foo being passed only as an alias parameter. 
It's not a string mixin, but I tend to avoid exposing string 
mixins to user code as much as possible anyway.

I'm not sure what you mean with »[…] the only acceptable input 
is a string; Since strings won't hold the type information...« 
– the input to BitfieldsOn is _not_ a string, it is an alias. 
The trick is that you can refer to it as »target« inside the 
mixin template, so the problem of obtaining the »real name« of 
something doesn't even arise.

David