Re: Garbage collection durint pcall.

[Roberto Ierusalimschy <roberto@...>]

> The idea that every object reference must be assigned a slot that lasts
> until the end of a block/call is not required anywhere outside of the C
> interface of the PUC Lua implementation, you're making unwarranted
> assumptions about how things should work.

+1


> An object reference may be abandoned as soon as the program gets to the
> point where it will no longer need the object for its normal execution
> (i.e. ignoring the effects of weak references and finalizers). The
> finalizer can run any time after that (1ns or 1 year later).

+1.


> Using finalizers to modify the state of your program outside of the object
> that became unreachable is going to end in tears, unless you are very
> careful, you end up with a program whose behavior will be difficult to
> analyze because the finalizer can run at almost any point in your program,
> not just at statement boundaries.

+1.

-- Roberto