Re: Proper Tail Calls Lua 5.2

[Lorenzo Donati <lorenzodonatibz@...>]

On 13/02/2016 02:38, Derek Bailey wrote:

[snip]

> Would the following statements fit that form or not?

[snip]


>          return func(tbl[nextKey]), _map(func, nextKey, tbl)

According to manual [1], no, this is not a case of tail call. Quoting 
that part (emphasis mine):

<quote>
A call of the form return functioncall is called a tail call.

[snip]

Note that **a tail call only happens with a particular syntax**, where 
the return has **one single function call** as argument;

[snip]


</quote>

And this is confirmed looking at the VM disassembled code, as Dirk 
showed in another message.


Cheers!

-- Lorenzo

[1] http://www.lua.org/manual/5.3/manual.html#3.4.10