Re: Lua module loader from usertype

[Tomas Guisasola Gorham <tomas@...>]

	Hi Luís Eduardo

	I am not sure if I understood your implementation correctly
but your problem reminds me of someone who wrote a module like:

-- mod.lua
M = {}
function M:f()
end

	And a script to test it:

local m = require"mod"
print(m) --> true

	`require' returns the contents of `package.loaded[modname]'
(in this case, `package.loaded["mod"]') which is set to true to avoid
loops of calls to `require'.  However, the module could avoid this
problem if it implements one of the following:

- returns the constructed table (which could be a local for those
  who don't want to have globals pointing to the packages).  In the
  above case, just add `return M' at the end of the file

- uses the `module' function (which registers the module at the
  proper place: package.loaded[modname])

- manually register the new module in package.loaded[modname].

	There is a rationale for that in PiL 2nd edition, chapter 15.

	Regards,
		Tomás

On Thu, 6 Dec 2007, Luís Eduardo Jason Santos wrote:

> I wrote a custom module loader using LuaJava and set it to the package
> loaders table.
> The loader is a user type with a __call int the meta table.
> 
> My problem is, although I am sure the loader is being called and manages
> complile and push a chunk of code as the result of a loadstring operation,
> require cannot get the module - returning a boolean instead.
> 
> Does anyone know if there's a problem returning a function from a loader in
> those conditions?
> 
> -- 
> Luís Eduardo Jason Santos
>