15 replies to this topic

[Sewbacca]

Is it possible to start a function in a specific Environment?

[valithor]

Sewbacca, on 19 February 2016 - 10:26 PM, said:

Is it possible to start a function in a specific Environment?

I would suggest looking into setfenv.

http://www.gammon.co...php?lua=setfenv

Edited by valithor, 19 February 2016 - 10:44 PM.

[Creator]

More specifically:

-- f <-- the function
-- env <-- the environement
setfenvReturnsToo = setfenv(f,env) -- but it also modifies the function it is given

[Sewbacca]

THANKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[Creator]

You're welcomeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[apemanzilla]

For compatibility reasons, load should be used instead where possible.

[HPWebcamAble]

To expand on what apemanzilla said, getfenv and setfenv are Lua 5.1 features, and will be removed from CC at some point, when the full update to Lua 5.2 is completed.

[Sewbacca]

Do load the same thing like setfenv?

[Creator]

It combines loadstring and setfenv.

load(string,mode,env)

[HPWebcamAble]

Read more about load() here:
http://www.lua.org/m...l.html#pdf-load

[Sewbacca]

I'm not sure, that I get it right, setfenv will be remove in CC Lua 5.2.

[Creator]

Lua 5.2 has come out. As has 5.3. The thing is that CC uses Lua 5.1

[Sewbacca]

Creator, on 20 February 2016 - 10:01 PM, said:

Lua 5.2 has come out. As has 5.3. The thing is that CC uses Lua 5.1

I mean, will be setfenv removed, when CC uses Lua 5.2?

Edited by Sewbacca, 21 February 2016 - 10:25 AM.

[Bomb Bloke]

Yes. There's no equivalent to setfenv in 5.2; it's not possible to code your own substitute.

http://lua-users.org...onmentsTutorial

[Sewbacca]

Do you know, why setfenv will be removed?

Edited by Sewbacca, 21 February 2016 - 10:49 AM.

[Bomb Bloke]

The answer here provides a pretty good example case as to when the new structure might serve better:

http://stackoverflow...fenv-in-lua-5-2

Whether or not that specific sort of thing was involved in the actual decision, I dunno.