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Improve compat code

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This commit is contained in:
Lars Mueller 2021-08-16 18:24:11 +02:00
parent cb155021b1
commit 29ffa18ff6
1 changed files with 4 additions and 3 deletions
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7
init.lua
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@ -1,13 +1,14 @@
-- Lua version check -- Lua version check
if _VERSION then if _VERSION then
-- TODO get rid of this string version checking
if _VERSION < "Lua 5" then if _VERSION < "Lua 5" then
error("Outdated Lua version! modlib requires Lua 5 or greater.") error("Outdated Lua version! modlib requires Lua 5 or greater.")
end end
if _VERSION > "Lua 5.1" then if _VERSION > "Lua 5.1" then
-- not throwing error("Too new Lua version! modlib requires Lua 5.1 or smaller.") anymore -- not throwing error("Too new Lua version! modlib requires Lua 5.1 or smaller.") anymore
unpack = unpack or table.unpack -- unpack was moved to table.unpack in Lua 5.2 unpack = unpack or table.unpack -- unpack was moved to table.unpack in Lua 5.2
loadstring = load loadstring = loadstring or load
function setfenv(fn, env) setfenv = setfenv or function(fn, env)
local i = 1 local i = 1
while true do while true do
local name = debug.getupvalue(fn, i) local name = debug.getupvalue(fn, i)
@ -20,7 +21,7 @@ if _VERSION then
end end
return fn return fn
end end
function getfenv(fn) getfenv = getfenv or function(fn)
local i = 1 local i = 1
local name, val local name, val
repeat repeat