Re: Ideas
[
Date Prev][
Date Next][
Thread Prev][
Thread Next]
[
Date Index]
[
Thread Index]
- Subject: Re: Ideas
- From: Philippe Lhoste <PhiLho@...>
- Date: 2012年4月22日 19:31:43 +0200
On 17/04/2012 00:37, Vox Timothy wrote:
- New Keyword: funct (like function, but with automatic return; would
require an explicit nil if void)
A good idea in languages returning only one value and with a terse
notation for functions, much less useful in Lua which is intendedly
"verbose", and which can return several values at once.
Honestly, when I started to code in Scala, I was perplex with this
"return is allowed but should be omitted" rule, for stuff like:
def vararg(arrayOfParams: Int*): Int =
{
var result = 0
for (arg <- arrayOfParams) result += arg * arg
result
}
Here, this notation even looks clumsy.
It is more useful when you define anonymous functions like:
someList.filterNot(s => s.length >= 4)
(eliminating string elements of length above 3) but we don't have that
in Lua.
- if, while, etc. could also automatically return (be expressions
instead of statements; in case of loop, last iteration)
Idem. What works well in one language cannot work, or in clumsy ways,
for another. That's also why we don't have += and even less ++
--
Philippe Lhoste
-- (near) Paris -- France
-- http://Phi.Lho.free.fr
-- http://PhiLho.deviantART.com
-- -- -- -- -- -- -- -- -- -- -- -- -- --