Re: [myhdl-list] __dict__ on signals?

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

On 9/11/11 4:06 PM, Sébastien Bourdeauducq wrote:
> Hi,
>
> why isn't it possible to use __dict__ on signal objects? How to get
> equivalent functionality?
>
> Thanks,
> Sébastien
>
>   >>>  from myhdl import *
>   >>>
>   >>>  s = Signal(intbv(0)[5:])
>   >>>
>   >>>  print s._max
> 32
>   >>>  print s.__dict__["_max"]
> Traceback (most recent call last):
>     File "<stdin>", line 1, in<module>
>     File "/home/lekernel/TE/myhdl/myhdl/_Signal.py", line 465, in __getattr__
>       return getattr(self._val, attr)
> AttributeError: 'intbv' object has no attribute '__dict__'
>

You can see from the error message, the __dict__ on a Signal, simply 
tries to pass the attribute *get* to whatever the Signal might be 
containing.  It does work on an object that does have a __dict__ but the 
intbv doesn't have a __dict__.

class foo(object):
    ....:     def __init__(self):
    ....:         pass
    ....:
    ....:

In [78]: x = foo()

In [79]: x.bar = 1

In [81]: xs = Signal(x)

In [83]: xs.__dict__
Out[83]: {'bar': 1}


Regards,
Chris Felton