### What it does Checks for tuple patterns with a wildcard pattern (`_`) is next to a rest pattern (`..`). _NOTE_: While `_, ..` means there is at least one element left, `..` means there are 0 or more elements left. This can make a difference when refactoring, but shouldn't result in errors in the refactored code, since the wildcard pattern isn't used anyway. ### Why is this bad? The wildcard pattern is unneeded as the rest pattern can match that element as well. ### Example ``` match t { TupleStruct(0, .., _) => (), _ => (), } ``` Use instead: ``` match t { TupleStruct(0, ..) => (), _ => (), } ```