Re: Is the registry needed?

["Soni L." <fakedme@...>]

On 30/09/15 12:56 PM, Sean Conner wrote:
> It was thus said that the Great Soni L. once stated:
> > In Lua you have 2 options:
> >
> > 1) Use function upvalues. (for local access)
> >
> > 2) Use the module table. (for shared access)
> >
> > There's no such thing as a "registry" in Lua, it only exists in C (and
> > debug). I want to bring Lua on par with the C API and vice-versa.
>    I think I may have mentioned this before, but wrap Lua in Lua.
>
> 	lua = require "lua"
>
> 	L = lua.Lnewstate()
> 	L:Lopenlibs()
> 	
> 	L:getglobal("print")
> 	L:push("this is a string")
> 	L:call(1,0)
>
>    Short of that, what's in the C API that isn't available from Lua?
>
>    -spc (debug.getregistry() called.  It's a bit miffed)
Well there are no functions to manipulate varargs as in

insert(pos, newarg, ...) -> return ...[1,pos], arg, ...[pos+1,-1]
remove(pos, ...) -> return ...[1,pos-1], ...[pos+1,-1]
replace(pos, arg, ...) -> return ...[1,pos-1], arg, ...[pos+1,-1]
sort([f ,]...) -> return sorted ...
reverse(...) -> return reversed ...
slice(i, j, ...) -> return ...[i, j]
etc

Either way, the original suggestion is/was to REMOVE the registry, not 
to make it available from Lua. If Lua doesn't need a registry then 
neither does C.

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