Crate dag

Traits

• DAG
• Graph
• RichDAG
• RichTreeGraph
• SetLike
• TreeGraph

Functions

• get_future
  Return the future set of the nodes in index_set. The future set (including itself) of a node whose stop_condition is true will not be included.
• topological_sort
  Topologically sort index_set and return a sorted Vec. For the nodes without order-before relationship, the ones with smaller order_indicator output will be ordered first.