I have a function that can be run at compile-time and which will be able to output code to be injected into the D source code stream. Can I get mixin whatever to do this for me? Mixin with a function that runs at compile-time and creates the required source ? Like D’s solution for a replacement for function-style C preprocessor macros ? - but far more advanced and capable ?

I need to re-read Ali Çehreli’s excellent book for the third time.

On Saturday, 24 June 2023 at 17:31:31 UTC, Cecil Ward wrote:
> Can I get mixin whatever to do this for me? Mixin with a function that runs at compile-time and creates the required source ?

have you tried it?

On Saturday, 24 June 2023 at 17:43:52 UTC, Adam D Ruppe wrote:
> On Saturday, 24 June 2023 at 17:31:31 UTC, Cecil Ward wrote:
>> Can I get mixin whatever to do this for me? Mixin with a function that runs at compile-time and creates the required source ?
>
> have you tried it?

No, not so far. Adam, if you think that is a workable approach then I certainly will do so. It’s going to be very awkward generating literal strings in D code using literal strings in the meta-mixin-code or whatever I should call it.

On 24.06.23 18:31, Cecil Ward wrote:
> I have a function that can be run at compile-time and which will be able to output code to be injected into the D source code stream. Can I get mixin whatever to do this for me? Mixin with a function that runs at compile-time and creates the required source ? Like D’s solution for a replacement for function-style C preprocessor macros ? - but far more advanced and capable ?
> 
> I need to re-read Ali Çehreli’s excellent book for the third time.
Is this what you want todo:

```d
import std.string : format, capitalize;
import std.stdio : writeln;

string getter(string v)
{
    return "auto get%s() { return %s; }".format(v.capitalize, v);
}

class T
{
    int abc;
    mixin(getter("abc"));
}

void main() {
    auto t = new T();
    writeln(t.getAbc());
}
```