hi, is there any D compiler option or other method to view the final template instantiation but not compiled (in asm or binary) code?

if there's a way, it might be very usefull for newbies like me to learn and understand the the Meta programming of dlang.

thanks!

dbh

On Friday, 30 July 2021 at 06:00:41 UTC, dangbinghoo wrote:

Not sure if this is exactly what you want but there is a hidden switch in dmd called -vcg-ast that prints out all the templates instantiated.

On run.dlang.io you can use the "AST" button to view this conveniently online.

On Friday, 30 July 2021 at 06:46:18 UTC, WebFreak001 wrote:

thanks a lot! this is truelly what I exactly want! it's great!

On Friday, 30 July 2021 at 06:46:18 UTC, WebFreak001 wrote:

but, where's these switch option documented? it seems it not appears in dmd --help or man dmd, or online document https://dlang.org/dmd-linux.html

thanks!

dbh.

On Friday, 30 July 2021 at 08:38:24 UTC, dangbinghoo wrote:

That's what he meant by "hidden" switch. I don't know why it isn't documented, but it probably should be.

On Friday, 30 July 2021 at 09:30:13 UTC, Mike Parker wrote:

sorry, I just not noticed "hidden", thanks for all of you!

On Friday, 30 July 2021 at 09:30:13 UTC, Mike Parker wrote:

The reason why it's not documented is because we don't want people to rely on the format of the output.
I guess if we put that disclaimer in the docs we could ...

On Friday, 30 July 2021 at 10:20:36 UTC, Stefan Koch wrote:

ok, that is reasonable. thanks!