mixin template's alias parameter ... ignored ?

[Steven Schveighoffer]

On 7/11/21 8:49 AM, Adam D Ruppe wrote:
> On Sunday, 11 July 2021 at 05:20:49 UTC, someone wrote:
>> ```d
>> mixin template templateUGC (
>>    typeStringUTF,
>>    alias lstrStructureID
>>    ) {
>>
>>    public struct lstrStructureID {
>>
>>       typeStringUTF whatever;
>>
>>    }
> 
> 
> This creates a struct with teh literal name `lstrStructureID`. Just like 
> any other name. So it is NOT the value of the variable.
> 
>> ```d
>>    public struct mixin(lstrStructureID) { ... }
>> ```
>>
>> because the argument seems to require a complete statement.
> 
> Indeed, you'd have to mixin the whole thing like
> 
> mixin("public struct " ~ lstrStructureId ~ " { ... } ");

when I've done this kind of stuff, what I usually do is:

```d
struct Thing {
   ... // actual struct
}

mixin("alias ", lstrStructureID, " = Thing;");
```

the downside is that the actual struct name symbol will be `Thing`, or 
whatever you called it. But at least you are not writing lots of code 
using mixins.

-Steve