On Friday, 20 May 2016 at 18:04:55 UTC, Stefan Koch wrote:

> Therefore you can transcompile code at compileTime at call PL/0 functions as there were naively implemented in D.
>

If you do want to call functions from D.
You cannot use the optimizer.
As it does _very_ aggressive inlineing and will fold all used functions into main.

On Friday, 20 May 2016 at 18:04:55 UTC, Stefan Koch wrote:
>
> Update I have implemented D codegen.
> The CodeGenerator as well as the optimizer work at CTFE.
> Therefore you can transcompile code at compileTime at call PL/0 functions as there were naively implemented in D.

This is pretty cool :D

Now I understand why you want to improve CTFE. You actually want better C++ interop. And to do that, you are going to CTFE compile the C++ code to D code, which is then mixed in, and all is good. Excellent idea! ;-)

cheers,
  Johan

On Friday, 20 May 2016 at 19:20:34 UTC, Johan Engelen wrote:
> On Friday, 20 May 2016 at 18:04:55 UTC, Stefan Koch wrote:
>>
>> Update I have implemented D codegen.
>> The CodeGenerator as well as the optimizer work at CTFE.
>> Therefore you can transcompile code at compileTime at call PL/0 functions as there were naively implemented in D.
>
> This is pretty cool :D
>
> Now I understand why you want to improve CTFE. You actually want better C++ interop. And to do that, you are going to CTFE compile the C++ code to D code, which is then mixed in, and all is good. Excellent idea! ;-)
>
> cheers,
>   Johan

Actually I think compiling c++ is a bit out of my league at the moment.
It would only work for self-contained subset of c++. Not for the whole c++ language.
Especially preprocessor tricks make this approach unfeasible.