Re: Possible Lua enhancements (mostly for private data)

[Roberto Ierusalimschy <roberto@...>]

> The problem with inside-out objects is the susceptibility to weak- 
> table-based cycles. I gather those are being addressed in 5.2, but I  
> don't know at what cost.

The paper about it has some cost estimates:

   http://www.inf.puc-rio.br/~roberto/docs/ry08-06.pdf

Basically, the costs are low unless you do something weird (such as a
long chain of key1->value1->key2->value2->...).

-- Roberto