Core.walk_left: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/shape/core.bend as Core
Lines 446-451 of bendtorch-core@0.1.0.0/src/shape/core.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&start_line=446&end_line=451

import Base

def walk_left(rows: List<&2, Row>, +index: Nat) -> Nat:
  match rows:
    case Nil{}:
      0n
    case Row{+stride, left, right} <> rest:
      Nat.add(Nat.mul(left, Nat.div(index, stride)), walk_left(rest, Nat.mod(index, stride)))

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.div
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mod
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mul
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=Row