Path of Exile Wiki

Please consider helping keep the wiki up to date. Check the to-do list of updates needed for version 3.14.0.

Game data exports will becoming later as the technical changes in addition to regular changes take some more time.

READ MORE

Path of Exile Wiki
im>Jackmcbarn
(rm name exception)
 
m (1 revision: Importing category modules and relevant templates from wikipedia)
(No difference)

Revision as of 20:03, 30 September 2015

Module documentation[view] [edit] [history] [purge]

This module prevents the use of global variables within Scribunto modules, in order to avoid creating bugs that are difficult to track down. When using this module, an error will be thrown if any nil global is read or if any global is written to, with the exception of arg. The arg variable is excluded because it is necessary for Scribunto's require function to work properly.

Usage

Place require('Module:No globals') at the top of the module using it.

local mt = getmetatable(_G) or {}
function mt.__index (t, k)
	if k ~= 'arg' then
		error('Tried to read nil global ' .. tostring(k), 2)
	end
	return nil
end
function mt.__newindex(t, k, v)
	if k ~= 'arg' then
		error('Tried to write global ' .. tostring(k), 2)
	end
	rawset(t, k, v)
end
setmetatable(_G, mt)