RE: multiple lua files with same-named functions

["Jerome Vuarand" <jerome.vuarand@...>]

You can use something like that (tested) :

 

---- foo.lua ----

-- declare helper functions

function push_env_table(t)
 local g = getfenv(0)
    setmetatable(t, {__index=g})
 setfenv(0, t)
end

 

function pop_env_table()
 local t = getfenv(0)
    local g = getmetatable(t).__index
 setfenv(0, g)
end

 

-- declare local stuff

foo = "foo"
function ffoo()
 return "ffoo"
end

 

-- loading a file require 4 lines, you could make a function of it

envbar = {}
push_env_table(envbar)
require("bar")
pop_env_table()

 

-- to use a file simply prepend the env table you defined

print(foo, envbar.foo)
print(ffoo(), envbar.ffoo())

--------------------

 

---- bar.lua ----

foo = "bar"
function ffoo()
 return "fbar"
end
--------------------

---

De : lua-bounces@bazar2.conectiva.com.br [mailto:lua-bounces@bazar2.conectiva.com.br] De la part de Raymond Jacobs
Envoyé : 5 mai 2006 09:52
À : Lua list
Objet : multiple lua files with same-named functions

Greetings All,

 

I am having a bit of an issue with the system I've made.

 

I have a single lua_State with a number of registered C functions in it.

 

whenever I want to execute another script file, I make a new co-routine (from C),

I load the lua code into this new co-routine, and then call a function on it.

 

the issue is that all of these different script files have functions of the same name,

and it seems that if i have previously loaded a script with the function 'onCreate' in it,

and I load a new script which doesn't have an onCreate function (yet it tries to call it) it will find

the previously loaded onCreate function, I would rather that it say onCreate doesn't exist (since it is not in the script I've loaded),

but it seems whatever code i load all of the functions get stored into the global state, is this right?

 

and if so how can I solve it? a brute force idea is to clear all the functions from the global state before loading a new script

but that sounds awful =/

 

any info is appreciated, thanks!

 

Raymond Jacobs

Owner,

Ethereal Darkness Interactive

www.edigames.com