How can I override a local function/variable that's in a different function/environment?
e.g. (yes, its Lua 5.1):
function override(orig, replacement)
local x = getfenv(2)
for k, v in pairs(x) do
if v==origthen x[k] = replacement end
end
end
local function a() print"a" end
local old_a = a
override(a, function() print"overridden"; old_a() end)
local x = 1
override(x, 2)
print(x) -- should print 2 now
That code works if function 'a' is not local, but is global. I know that local variables are directly mapped to registers, so I don't even know if it's possible. Any suggestions, for 5.1 or 5.2?
Thanks,
Elijah Frederickson
