type Stack
import bend-visgraph@2.0.0.0/visgraph.bend as Visgraphimport Base
214# The stack holds the points no later point has beaten yet. A point pops the
215# entries it beats; the entry left on top bounds its interval on the left,
216# and the point that pops an entry bounds that entry's interval on the right.
217type Stack is Data:
218 KNil{}
219 KCon{i: U32, key: F32, next: Stack}