DynamicArray.tl_start_at: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/containers/dynamic_array.bend as DynamicArray
Lines 449-454 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=449&end_line=454

import Base

def tl_start_at(~T: Data, limit: Nat, depth: Nat, +cap: Nat, len: Nat, arr: Array<Maybe<&2, T>>) -> DynArray<&2, T> & List<&2, T>:
  match len:
    case 0n:
      (DA{limit, depth, cap, 0n, arr}, Nil{})
    case 1n+ +m:
      tl_done(T, limit, depth, cap, 1n+m, tl_go_at(~T, 1n+m, Nil{}, Array.get(Maybe<&2, T>, arr, U32.from_nat(m))))

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.get
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  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.from_nat
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/dynamic_array.bend&name=DynArray
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/dynamic_array.bend&name=tl_done
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/dynamic_array.bend&name=tl_go_at