graph,graph/{encoding/dot,internal/set,topo,traverse}: remove intsets imports
Created by: kortschak
This is a first step towards allowing int64
ID values and addresses the simple-to-handle cases.
Another PR for the more hairy community package will follow when I figure out a good approach; the problem is that intsets.Sparse
iterates via a stateful method, which allows a nice method-based approach to handle subset iteration, versus complete set iteration without filling a complete set for the complete set case. set.Ints
cannot do this because of limitations with range
. Suggestions welcomed.
@vladimir-ch @mewmew Please take a look.