[myhdl-list] Issue with namespaces after conversion

[Jan D. <ja...@ja...>]

For the next development release I want to address all outstanding
bug requests. I have implemented a satisfactory fix for all of them
except one, and I'd like to make everyone aware of this.

The problem is that conversion flattens hierarchy, and signals get renamed
to have a "global" name that is non-conflicting among themselves.
However, those new names may conflict with "local" names from variables
within generators/processes/always blocks. This issue is not detected
in current releases.

The way to solve this would be to change local names if necessary. However,
this is not so trivial. Moreover, there are other naming issues (e.g.
VHDL and Verilog keywords are not detected at this moment) so this
calls for a general solution that solves all naming issues at once.

But there's no time to do that now. So what I have implemented is simply
to detect the situation and flag it as an "error". This is not satisfactory,
but at least you'll get an early warning.

The bug report in question lives here:

http://sourceforge.net/tracker/index.php?func=detail&aid=1837003&group_id=91207&atid=596332

Regards,

Jan

-- 
Jan Decaluwe - Resources bvba - http://www.jandecaluwe.com
Kaboutermansstraat 97, B-3000 Leuven, Belgium
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