Re: [ANN] Lua 5.2.0 (work2) now available
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- Subject: Re: [ANN] Lua 5.2.0 (work2) now available
- From: Luiz Henrique de Figueiredo <lhf@...>
- Date: 2010年1月14日 19:14:00 -0200
> __len is still able to return non number values. What is the position
> about that? Is that the desired behaviour?
__len can return any Lua value:
for k,v in ipairs({true,print,"hello",{},io.stdin}) do
a=setmetatable({},{__len=function() return v end})
print(k,v,#a)
end
1 true true
2 function: 0x9bbdfd0 function: 0x9bbdfd0
3 hello hello
4 table: 0x9bc2240 table: 0x9bc2240
5 file (0x2e5420) file (0x2e5420)