API/Library errors (a function value) error - RESOLVED

[MoparDan 1]

So, from what I am understanding this "should" work but I keep getting the the following error: attempt to index local 'test' (a function value) error.

 

here is the "test" (main) file

local test = require("testAPI")
local term = require("term")

term.write("This is NOT from the api!")
test.fred("And this is!")

And here is the "testAPI.lua" file:

local term = require("term")

function fred(text)
  term.write(text)
end

function george()
  term.write("should not see this unless george was called!")
end

and when I run it I get:

/# test
This is NOT from the API!
/test:5: attempt to index local 'test' (a function value)
stack traceback:
        /test:5: in main chunk
       (...tail calls...)

Basically, I would like to create an API/Library with various functions in them so I can call the separate functions as needed. What am I doing wrong to prevent this error?

 

p.s., I did look at this tutorial and tried to use a table with a different error altogether.

[MoparDan 1]

Even though I do love OC, it seems either the boards are either not very active or simply nobody knew the answer. Nonetheless, I have stumbled across the answer through experimentation.

 

It seems that with OC, once the library is loaded in the "main" script (the 'local api = require("api")' bit), you don't need to make calls to your library directly, but simply just call the function itself. Using my example 'test' above:

 

test.fred("And this is!") -- calling the 'testAPI.lua' this way will throw the error but....

fred("And this is!")  -- properly calls the function 'fred' from the 'testAPI.lua' file.

 

So, I hope this helps others out that had this issue and thus it should go without saying but if you create and use multiple API's/Libraries to make sure each function name is unique!

 

On a side note, it is important that if you make changes to the API/Library file, you MUST reboot the computer for the changes to take effect...now if you will excuse me, I have a bald spot to tend to before I figured this out....

[Wobbo 8]

I would really reread that tutorial if I were you. Now your library cannot be unloaded, since it is placed into the global environment. That is why you need to use a table and return that at the end, like this:

local term = require("term")

local test = {}

function test.fred(text)
  term.write(text)
end

function test.george()
  term.write("should not see this unless george was called!")
end

return test

[MoparDan 1]

Will do, and thank you for a reply!

 

I guess the issue I was having when I tried using them in a table is that I just couldn't get the functions to work (I.E. threw an error while trying to call them).

 

When they are in a table like that, how would you call them? would it be:

local test = require("testAPI")
local term = require("term")

test.fred("Some Text!")

Or would it be:

local test = require("testAPI")
local term = require("term")

fred("Some Text!")

That was the issue I was having when trying to put them into a table.

 

EDIT:  Ugh, I really need to just look at what I am doing to answer my own questions. It is the first option. Sorry for being noobish and again, thank you for all the help!