Deceptively basic Lua tables question

[zac352]

Well, to each one his thing. Some people don't like Lua just because it isn't strongly typed .

I'm getting a little crazy from the lack of OOP. Squirrel is simple, has OOP, has tables, ...

[kikito]

And it also has a nice and helpful forum. (may Ganesha forgive me)

[zac352]

And it also has a nice and helpful forum. (may Ganesha forgive me)

Don't worry, when I start on physibots again I'm putting in both Lua and Squirrel. Squirrel first (just because of the simplicity of implementing it. ).

[Xgoff]

A nice solution would be having nil[whatever] return nil silently, without raising an error. I believe in Squirrel they do just that. I don't think it can be done in Lua.

Code: Select all

debug.setmetatable(nil, { __index = { } })
print((nil).test) --> nil

probably won't make some people very happy if they see it though

[bartbes]

I mean, you can do anything with your code, nobody will take that away from you, but I would like to note that the debug library is not to be used in production code (as stated by the lua manual.. somewhere).

[Xgoff]

you're probably fairly safe as long as you're effectively sandboxing user code. the debug library may be less dangerous than allowing loading of bytecode (especially in 5.2), at least, which is something i bet a lot of people overlook