[Libre-soc-bugs] [Bug 1094] insndb instruction database visitor-walker is needed

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=1094

--- Comment #210 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Dmitry Selyutin from comment #209)
> Does it meet your expectations? As you see I chose {} for hashes and pass
> the stuff which was used.

lgtm, though imho Hash is a misnomer, maybe name it GetKey?

> 
> for (node, parent, path) in walker(items):

imho this or the one returning objects with node, parent, and path fields is
good. I do think we should pick whichever option is faster, since the walker is
likely hot code. if we can guarantee callers won't keep the returned object
around, the fastest would probably to return the same object every time and
just update its node, etc. fields.

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