Re: [ANN] Lua 5.4.0 (work1) now available

[Paul K <paul@...>]

On Thu, Mar 15, 2018 at 11:43 AM, Roberto Ierusalimschy
<roberto@inf.puc-rio.br> wrote:
>> I noticed "debug information about function arguments and returns" on
>> the list of changes; are these implemented using "fTransfer" and
>> "nTransfer" fields? Are there any further details on how they can be
>> used?
>
> Did you try the manual?

I did; this is what I see [1]:

fTransfer: the index of the first local variable being "transfered",
which means parameters in a call or return values in a return. This
value is only meaningful during a call hook or a return hook. (For
call hooks, this value is always 1.)
nTransfer: The number of values being transfered (see previous item).
(For calls of Lua functions, this value is always equal to nparams.)

I didn't quite get what "transfered" means in this context; as there
were no other mentions in the document I was hoping for some
additional information.

(BTW, shouldn't it be "transferred"?)

Paul.

[1] https://www.lua.org/work/doc/manual.html#lua_getinfo