User-defined keywords and stack size for user-defined types

["Zé Pedro" <zarroba@...>]

Hi all..
I have a question about how many user-defined types can be registered in lua (or the size of memory allocated for it). I'm at a point when I register any more types there is a realloc exception when trying to execute a lua script. Have I reached the memory limit of data types registered?
Another problem I'm having is making variables that I pass from C to lua read only. I'm registering a variable that can be of one of three types defined by me. When adding it to the stack before I execute the script I've tried to redefine the "__newindex" field so the variable cannot be changed. But this isn't working. From what I understood I could only do this before I registered it. Any ideas?

Thanks,
José Tavares

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