Re: 'table' as fallback for tables

[Philipp Janda <siffiejoe@...>]

Am 30.06.2016 um 15:41 schröbte Gavin Wraith:
> In message <20160630132301.GB21516@inf.puc-rio.br>
>            Roberto Ierusalimschy <roberto@inf.puc-rio.br> wrote:
>
> > > ˜ How should constructors set length? What are the lengths of {}, {1, 2} and {1, 2, [3]=3} ?
> >
> > 0, 2, and 2.
> A typo, I presume. Just testing with
> *lua
> Lua 5.3.2  Copyright (C) 1994-2015 Lua.org, PUC-Rio
> RiscLua 6.3
> > x = { 1,2,[3]=3}
> > print (#x)
> 3
> > print (#{1,2,[4]="a"})
> 2

We are not talking about the length of *any* table, but about the 
initial length that can be derived from a table literal. And the largest 
integer key used in array literal syntax is a valid option. The largest 
positive integer key in the whole table literal would also be possible, 
but I don't think `{ [1] = true }` should be an array ...

Philipp