Re: [myhdl-list] Constant ints in interfaces

[Christopher F. <chr...@gm...>]

On 3/16/15 7:01 AM, SHEN Chen wrote:
> Hi Keerthan,
>
> I will write more cases as you said. So I hope folks here will post
> exotic way of abusing interface, so we could clarifying what are
> supported v.s. what are not.
>
> By doing this, we can have a spec first, before anyone attempting a fix.

The spec should be covered in MEP 107:
http://dev.myhdl.org/meps/mep-107.html

The conversion of constants wasn't in the
original MEP but is a good feature to go
along with interfaces.  We can add more
info on const usage in the "what's new in
MyHDL 0.9" documentation.

>
> For instance, do you think it's a good idea to have a Interface base
> class, and requires all interface to derive from the base class?

This was discussed when MEP107 was first
proposed and it was decided no.

>
> With this convention, during extractHier/analyze, we can unambiguously
> identify interface objects, descend into it and extract its member signals.

This is what is currently done, an object is
walked and the "Signal" attributes identified.

Regards,
Chris