Re: [myhdl-list] int(EnumItem)

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

Felton Christopher wrote:
> On Jul 14, 2009, at 4:36 AM, Jan Decaluwe wrote:
> 
>> Felton Christopher wrote:
>>> Does it make sense to add the following to the EnumItem class?
>>>
>>>        def __int__(self):
>>>            return int(self._val)
>>>
>>>        def __long__(self):
>>>            return long(self._val)
>>>
>>>        def __float__(self):
>>>            return float(self._val)
>> Probably, unless you also expect this to be easily convertible?
> 
> Yeah, I guess that would of been part of it as well.  I had a design I  
> was converting from Verilog.  In this particular case I had a packet  
> decoder.  The first part of the packet was some command structure the  
> last part data.  To decode the command portion the "state" variable is  
> assigned to state and compared to state.  Later the same variable  
> counts through the rest of the packet.  Essentially the "state" was a  
> simple byte counter.
> 
> In that case, I would do something like >>> state.next = state + 1
> 
> This probably does not make sense.  When using the enum it should only  
> be used with strictly with a state variable.  Such that the underlying  
> value is not known or directly needed.

Yes - if the value is needed I suggest to use symbolic constants
instead.


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