BitTree.zero_tree: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/BitTree.bend as BitTree
Lines 53-60 of mylsm-lsm-store@0.6.0.1/src/BitTree.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/BitTree.bend&start_line=53&end_line=60

import Base

# Independent subtrees are built in parallel.
def zero_tree(+height: Nat) -> WordTree:
  match height:
    case 0n:
      Leaf{0}
    case 1n+h:
      left right = zero_tree(h) zero_tree(h)
      Fork{left, right}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/BitTree.bend&name=WordTree