almost_swapped

This lint rule checks for instances of attempted swaps (i.e. a = b; b = a).

Why this is discouraged

This will never result in the expected behavior. In the example above, the value of b will be assigned to a. Then, this same value gets assigned back to b (a no-op), resulting in both identifiers being bound the original value of b. You should instead use Luau's multiple assigment syntax, which will swap as expected (i.e. a, b = b, a).

Example violations

almost_swapped will warn on the following:

a = b
b = a

You should instead do:

a, b = b, a