Re: Multiple luaL_loadfile()/lua_pcall() and persistance

[Roberto Ierusalimschy <roberto@...>]

> I'm on a tool that load then execute several Lua scripts so I have many call to luaL_loadfile()/lua_pcall() pairs. My question is about code persistence.
> 
> 3 examples :
> 
> --- script1.lua ---
> print "I'm doing very interesting stuffs"
> ---
> 
> --- script2.lua ---
> function toto()
>    print "even more interesting stuffs"
> end
> ---
> 
> --- script3.lua ---
> print "Yeah, I'm here"
> 
> function tata()
>   print "I'm the most interesting one"
> end
> ---
> 
> My assertions are the following :
> 
> 1/ content of script1 is only one shot so it is collected and resource are freed
> 2/ toto() and tata() kept, ready to be called by other code.
> 3/ after loading/calling all those 3 script, in Lua's memory only toto() and tata() remain, and "external" prints get collected after execution.
> 
> Am I right ?

Yes. 'toto' and 'tata' are kept because they are assigned to global
variables. Everything else is eventually collected, provided you removed
from the stack the result from 'luaL_loadfile()' after calling
'lua_pcall()'.

-- Roberto