Re: the key_depends() issue

[Guillaume Emont <gemont igalia com>]

On 01/02/2011 13:40, Juan A. Suárez Romero wrote:
> On Tue, 2011-02-01 at 12:23 +0100, Guillaume Emont wrote:
>> Not needed
>> ~~~~~~~~~~
>>
>> supported_keys() is not strictly needed in a resolution algorithm, and
>> could
>> only provide a marginal performance improvement if its result is
>> cached.
>>
>
> First of all, thanks for the email.
>
>
> I agree that supported_keys() is not strictly needed to do the job. But
> the same can be told about supported_keys() in media sources: they are
> not a must to do the job.
>
> Still, I think it is worth to keep supported_keys() to tell applications
> which keys are supported, instead of applications needing to call
> continuosly may_resolve() to filter which keys are supported. Actually,
> I don't see supported_keys() as a complex function.
True, I only thought of supported_keys() from the point of view of the
big resolve() algorithm in core, but that information can indeed be
useful to application developer, so I guess we should keep it as it is.
>
> 	J.A.
>
>
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