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> My tentative list:
> -  function environments (see (1) below)
> -  coroutines (is there *anyone* at all who agrees??  :-)  )
> -  mutable upvalues (see (2) below)
> -  proxy constructions
> And some pluses:
> +  __pairs metamethod
> +  __settable, __gettable metamethods

What about:

+ Classes and objects

It's #1 to me. This seems to be a common wish, every now and then we see
threads on this topic and many people have developed workarounds so that
it looks like Lua is a real OOP language, and (or as) the game
programing community uses C++ a lot. It's not necessary to add
predefined classes to the core (like Java's VM that rely on String and
StringBuffer at least), just the ability to define classes, instantiate
objects and calling [inherited] methods.


Andre de Leiradella