Generalized Iteration

Pluto's virtual machine allows you to simply iterate over tables without having to explicitly call a function:

New Code
pluto
local t = { 1, 2, 3, "hello", "world" }
for key, value in t do
    print(key, value)
end

When you omit the function from the loop preparation, next is implicitly inserted. So, that code is identical to this:

Old Code
pluto
local t = { 1, 2, 3, "hello", "world" }
for key, value in next(t) do
    print(key, value)
end

This is compatible with for-loop optimizations.

caution

The bytecode of this feature is not backwards-compatible with Lua.