Re: Lua 5.4-work1 with first class arrays (implementation & benchmarks)

[Dibyendu Majumdar <mobile@...>]

On 28 March 2018 at 06:00, Petri Häkkinen <petrih3@gmail.com> wrote:
> I think I've shown how an array subtype can be added without breaking compatibility with existing programs. Can you show how the patch breaks an existing program, please?
>

Hi, this issue was discussed at length already?

The simplest example is standard iteration using for / pairs().
Existing code does not expect nils to appear. What is problematic is
that you can't tell if some existing code will break - because it is a
semantics thing - syntactically it all looks fine.

Regards