SV: Excessive expressions in assignment (was: Garbage Collector)

["Andreas Stenius" <andreas.stenius@...>]

Edgar Toering wrote:
> Reuben Thomas wrote:
> > 
> > >         local x = 10, y
> > 
> > This is incorrect syntax. You meant
> > 
> > local x, y = 10
> 
> The problem is that it *is* correct syntax but
> most probably not what one wants.  If one comes
> from C/C++ it's easy to make this error and Lua
> accepts it silently.
> 
> Therefore the question:  Should Lua issue an error
> for this condition, fewer names on the left hand
> side than expressions on the right hand side?
> It normally makes no sense to explicitly supply
> excessive expressions.

The problem is when the assignment is from a function
call, and you don't want (need) all values returned.

I would recommend people from the C-world to make a
clean start when learning lua. If it's hard, keep it
simple at first with 1 expression / line.

//Andreas