Lightweight function syntax: no need to change Lua
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- Subject: Lightweight function syntax: no need to change Lua
- From: Dirk Laurie <dpl@...>
- Date: 2010年11月28日 10:35:31 +0200
The following syntax:
('a,b,c')('a+b+c') == function(a,b,c) return a+b+c end
is available after doing this chunk:
getmetatable("").__call =
function(arg,res)
if #arg>0 then return load(arg.."=...; return "..res)
else return load("return "..res)
end
end
Dirk
(Apologies if someone has already pointed out this obvious trick.
I started reading the discussion somewhere in the middle.)