Re: [Proposal] Thread Metatable

[Rena <hyperhacker@...>]

On Tue, Jun 23, 2015 at 3:45 PM, Soni L. <fakedme@gmail.com> wrote:
>
>
> On 23/06/15 04:31 PM, Sean Conner wrote:
>>
>> It was thus said that the Great Soni L. once stated:
>>>
>>> On 23/06/15 03:57 PM, Sean Conner wrote:
>>>>>>
>>>>>> On Tue, Jun 23, 2015 at 2:11 PM, Soni L. <fakedme@gmail.com> wrote:
>>>>>
>>>>> __call and co() makes it look like a function call, which may be kinda
>>>>> confusing. On the other hand OOP syntax co:resume() is more Lua-like,
>>>>> as
>>>>> strings have it too. You also cannot index functions.
>>>>
>>>>    Yes you can.
>>>>
>>>>         function foo(x)
>>>>           return 3 * x + 5
>>>>         end
>>>>
>>>>         mt =
>>>>         {
>>>>           __index = function(obj,idx)
>>>>             local d = string.dump(obj)
>>>>             return d:sub(idx,idx)
>>>>           end
>>>>         }
>>>>
>>>>         debug.setmetatable(foo,mt)
>>>
>>> Try it without debug.
>>
>>         lua_getglobal(L,"foo");
>>         lua_getglobal(L,"mt");
>>         lua_setmetatable(L,-2);
>>
>>    -spc
>>
>>
> ...
>
> File handles can use oop syntax;
> Strings can use oop syntax (only thing you don't call a library function to
> create that has a metatable);
> So why can't threads? They're like file handles, as in you call a library
> function to create them. This would just increase consistency a bit.
> (another option would be to make it so file handles don't have a metatable
> and you have to call io.write(fd, ...) and such instead)
>
> (I can't think of anything else that would feel "better" with metatables...
> adding metatables to numbers (with __index being `math`) would be just
> weird: n:tointeger(), n:pow(0.5), etc (mostly because they're, y'know,
> _math_ functions. if we had a `number` library then /maybe/ I'd be ok with
> it.))
>
>
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>
>

I agree, for numbers would be odd, but for threads seems natural. I
was actually surprised that they don't have `__index = _G.coroutine`
already.

-- 
Sent from my Game Boy.