Implicit return from chunk

["J. Perkins" <jason379com@...>]

I'm trying to make a small change to the Lua
functionality and I'm having trouble figure out how to
do it, hoping someone here has tried something
similar.

I'd like to use Lua as a "component description
language", that is I'd like to write files like this:

  ComponentType
  {
    param1="some value",
    param2="another value"
  }

"ComponentType" is a C function that creates a new
instance of the component and initializes it from the
table data, then returns the C++ component wrapped in
Lua table (something like Luna).

I load the component by calling a
loadComponent(filename) function, which basically does
a lua_dofile() to run the chunk. The problem is, after
the chunk has run, I want to retrieve the newly
created table from Lua so I can extract the C++
pointer to return from the loadComponent() function.
If I do this:

  return ComponentType{ ... }

The table is pushed on the stack and everything works
great, but it would be nicer if I didn't need the
return. Has anyone modified Lua to implicitly pick up
the function return value and return it from the
chunk? Or any pointers on how I might go about doing
that?

Thanks for the help,
Jason
379


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