Module:No globals: Difference between revisions

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    m (Changed protection level for "Module:No globals": Used in interface MediaWiki:Protectedpagetext ([Edit=Require administrator access] (indefinite) [Move=Require administrator access] (indefinite)))
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    m (Copying one change by Mainframe98: "From Module:No globals/sandbox, per Topic:Uyr5gphaxbpe5k4h" from mw:Module:No globals. (docs, translate))
    Line 2: Line 2:
    function mt.__index (t, k)
    function mt.__index (t, k)
    if k ~= 'arg' then
    if k ~= 'arg' then
    error('Tried to read nil global ' .. tostring(k), 2)
    -- perf optimization here and below: do not load Module:TNT unless there is an error
    error(require('Module:TNT').format('I18n/No globals', 'err-read', tostring(k)), 2)
    end
    end
    return nil
    return nil
    Line 8: Line 9:
    function mt.__newindex(t, k, v)
    function mt.__newindex(t, k, v)
    if k ~= 'arg' then
    if k ~= 'arg' then
    error('Tried to write global ' .. tostring(k), 2)
    error(require('Module:TNT').format('I18n/No globals', 'err-write', tostring(k)), 2)
    end
    end
    rawset(t, k, v)
    rawset(t, k, v)
    end
    end
    setmetatable(_G, mt)
    setmetatable(_G, mt)

    Revision as of 17:32, 10 May 2019

    Documentation for this module may be created at Module:No globals/doc

    local mt = getmetatable(_G) or {}
    function mt.__index (t, k)
    	if k ~= 'arg' then
    		-- perf optimization here and below: do not load Module:TNT unless there is an error
    		error(require('Module:TNT').format('I18n/No globals', 'err-read', tostring(k)), 2)
    	end
    	return nil
    end
    function mt.__newindex(t, k, v)
    	if k ~= 'arg' then
    		error(require('Module:TNT').format('I18n/No globals', 'err-write', tostring(k)), 2)
    	end
    	rawset(t, k, v)
    end
    setmetatable(_G, mt)