Why is the function within my metatable automatically being called?

[WickeTD]

From what I can recall from my Lua days prior to Garry's Mod, the [i]__call[/i] metamethod would never be called upon until you specifically call your table. However, using

for k,v in ipairs(nodes) do
	local meta = { __call = Print() }
		
	setmetatable(nodes[k], meta)
end

the [i]Print()[/i] function automatically gets called (and obviously prints a message) for every single table within the table. Note that [i]Print()[/i] is merely a placeholder function in an attempt to figure this out.

What's going on? Am I missing something here?

[Darkwater]

What you're actually doing, is setting __call to whatever Print() returns, so Print() gets called. You probably want something like

[lua]
for k,v in ipairs(nodes) do
local meta = { __call = function () Print("Hi!") end }

setmetatable(nodes[k], meta)
end
[/lua]

[WickeTD]

So is there no way whatsoever to assign seperate functions to each individual table?

[Pugsworth]

[QUOTE=WickeTD;40700229]So is there no way whatsoever to assign seperate functions to each individual table?[/QUOTE]

What you want is to have Print() return a function.

Something like:

[lua]function Print(...)
return function() print("test: ", ...) end
end[/lua]

[Pugsworth]

[QUOTE=thejjokerr;40700566]Or just
__call = Print

Without the parentesis[/QUOTE]

This wouldn't allow it to be different for every table that inherits it.

[Somer]

__call gets passed the table as the first argument (similar to calling tab:__call), so based on that you don't really need to define a new function every time you create the inheritance.