Words.ensure: def of gralha-byte-words@0.1.0.0
Import: import gralha-byte-words@0.1.0.0/words.bend as Words
Lines 60-68 of gralha-byte-words@0.1.0.0/words.bend: https://jend.leeeet.dev/read.txt?path=gralha-byte-words@0.1.0.0/words.bend&start_line=60&end_line=68

import Base

# (out, cap) with cap >= need; ok says it already is
def ensure(n: Nat, out: Array<U32>, +cap: U32, +need: U32, ok: Bool) -> Array<U32> & U32:
  match n, ok:
    case k, True{}:
      (out, cap)
    case 0n, False{}:
      (out, cap)
    case 1n+p, False{}:
      ensure(p, grow(out, cap), (cap * 2 : U32), need, U32.is_ge((cap * 2 : U32), need))

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_ge
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.mul
  https://jend.leeeet.dev/definition.txt?path=gralha-byte-words@0.1.0.0/words.bend&name=grow