I suppose I could write a function "checkargs"
iirc the Sierra Wireless folks did something like that.
Indeed we have...
If you're talking about run-time rather than static type-checking, then [1] shamelessly copies the sierra wireless solution, except that it runs as a debug hook, reads documentation comments rather than requiring a check function and is in Lua as opposed to C (nothing against C, just that a Lua-only solution doesn't require compilation).
--- prints the string s n times
-- @tparam number n how many times to print the string
-- @tparam string s the string to print
function printn(s, n)
for i = 1, n do print(s) end
end
printn(10, "hello")
$ lua -largcheck test/ldoc.lua
lua: test/ldoc.lua:8: bad argument #1 to 'printn' (string expected, got number '10')
