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local function
callable_to_function(callable)
return
function(...)
return
callable(unpack(arg))
end
end
local callable_table = setmetatable({}, {__call = function (t, k, v) print(k,v) end})
foreach({a = 1, [3] = 'hello'}, callable_to_function(callable_table))
>-----Original Message-----
>From: Gustavo Niemeyer [mailto:niemeyer@conectiva.com]
>Sent:
Friday, December 19, 2003 12:39 PM
>To: Lua list
>Subject: Re:
__call?
>
>
>> > To the Lua authors, are there any plans
for changes in 5.1 or later
>> > to address these
issues?
>>
>> Currently we have no plans to change that. As
pointed out,
>> lua_isfunction is different from lua_iscallable. If you
really want
>> that, it is quite easy to define a reasonable
lua_iscallable
>using the
>> current
API.
>[...]
>
>It might be a good idea to at least fix the
standard library in this
>respect, either completely removing the type
checking from
>table.foreach
>and others, or implementing a generic
checking mechanism.
>
>--
>Gustavo Niemeyer
>http://niemeyer.net
>
>