Re: [Yaml-core] Out of band info

[Brian I. <in...@tt...>]

On 30/12/03 18:06 +1300, Sam Vilain wrote:
> Hi all,
> 
> I think that using `tie' to hang out-of-band information to a data
> structure, as YAML::Node does, is a poor choice of approach.  There is
> every possibility that a user has a data structure with ties that they
> care about, which will be nuked AIUI...

I'm not sure you understand how YAML::Node is intended to be used. It
*is* used to hold out of band data, but not necessarily directly on the
raw node in your data. There is a technique called "shadowing" that
associates a YAML::Node with a raw node. I think this is what you want.
See the YAML::Shadow() function. 

I'm on a flaky connection right now, so I can discuss this in length
later if you still have doubts.

Cheers, Brian

> 
> What would be wrong with just using a hash in the YAML object doing
> the dumping, from the reference address of the object (as returned by
> Scalar::Util::refaddr) to the information?  Stay as "hands-off" to the
> data structure as possible.
> 
> Otherwise, there is a good example of handing out-of-band information
> off a reference without tie (using a custom mg_type) in the Info/
> directory of the Pixie distribution.  It is a fairly simple XS module.
> -- 
> Sam Vilain, sa...@vi...
> 
> A meeting is an event at which the minutes are kept and the hours are
> lost.
>  - anon.
> 
> 
> 
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