This code doesn’t invoke the “__index” metamethod.
tt = {'a', 'b', 'cc'}
mt = {
__newindex = function(table, key, value)
error("Attempt to modify read-only table")
end,
__index = function(table, key, value)
error("Attempt to access read-only table")
end,
}
setmetatable(tt, mt)
tt[2] = 1
I don’t understand exactly why..
Sean Riley
"All problems in computer science can be solved by another level of indirection", Butler Lampson, 1972