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- Subject: Re: idea of vision of blueprint of ROADMAP of Lua core
- From: skaller <skaller@...>
- Date: 17 Jan 2005 13:38:37 +1100
On Mon, 2005-01-17 at 09:02, Gunnar Zötl wrote:
> I'm all in favor of keeping the "self" notation. And I think that one
> OO system to rule them all is not necessarily a boon for lua. As other
> people have written, the power of lua comes from the meta-programming,
Actually, I think it comes from supporting a few high level
constructions such as first class functions, tables, and coroutines.
The meta-programming stuff is actually a hack to replace
real polymorphism which doesn't make much sense in a dynamically
That is, the main use of it is to provide syntactic sugar,
which you'd use a type system for in a statically typed language.
Tread warily, since object dispatch, including meta-methods,
can't handle covariant operations such as addition .. one
of the things Lua and Python actually try to use it for.
John Skaller, mailto:firstname.lastname@example.org
snail: PO BOX 401 Glebe NSW 2037 Australia
Checkout the Felix programming language http://felix.sf.net