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Module:Arguments: Difference between revisions

add a more detailed comment about metatable behaviour
m>Mr. Stradivarius
(return a table rather than a function, improve the comments)
m>Mr. Stradivarius
(add a more detailed comment about metatable behaviour)
Line 66: Line 66:
end
end


-- Define metatable behaviour.
--[[
-- Define metatable behaviour. Arguments are stored in the metaArgs table, and are only fetched from the
-- fargs and pargs tables once. Also, we keep a record in the metatable of when pairs and ipairs have
-- been called, so we do not run pairs and ipairs on fargs and pargs more than once. We also do not run
-- ipairs on fargs and pargs if pairs has already been run, as all the arguments will already have been
-- copied over.
--]]
metatable.__index = function (t, key)
metatable.__index = function (t, key)
local val = metaArgs[key]
local val = metaArgs[key]
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