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I'd like to see Lua's tooling ecosystem improved. As 2017 showed, the tooling a language has on offer is just as important as the language itself.
It was thus said that the Great KHMan once stated:
>
> How many other major languages that avoids having a switch
> construct are there? Lua puts in a utf8 library but not a switch
> construct?
Not built in, but ...
function switch(var,case)
if case[var] then
case[var]()
end
end
x = 4
switch(x, {
one = function() print "yada" end,
two = function() print "blah" end,
three = function() print "yahoo" end,
[4] = function() print "this is four" end,
})
You still have the overhead of a table lookup, but this is about as close
to a switch statement you can get in Lua without changing the language.
-spc