DynamicArray.pow2: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/containers/dynamic_array.bend as DynamicArray
Lines 35-41 of bend-collections@1.0.0.0/src/containers/dynamic_array.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/containers/dynamic_array.bend&start_line=35&end_line=41

import Base

# 2^d (structural doubling; Base Nat.pow is avoided, see docs/VALIDATION.md).
def pow2(d: Nat) -> Nat:
  match d:
    case 0n:
      1n
    case 1n+p:
      Nat.double(pow2(p))

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.double