Imports.walk: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/rules/imports.bend as Imports
Lines 154-170 of bolt@1.27.0.0/src/rules/imports.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/rules/imports.bend&start_line=154&end_line=170

import Base

# the walk: `walk.spec`, step for step, through the lookups above
def walk(
  fuel: Nat,
  todo: List<&2, String>,
  +seen: List<&2, String>,
  +es: List<&2, Edge>,
  +read: List<&2, String>
) -> List<&2, String>:
  match fuel todo:
    case 0n t:
      seen
    case 1n+f Nil{}:
      seen
    case 1n+f Con{p, rest}:
      +found = fresh.fast(deps.first(es, p), seen, read)
      walk(f, List.append(&2, String, found, rest), List.append(&2, String, List.reverse(&2, String, found), seen), es,
        read)

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.append
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.reverse
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/rules/imports.bend&name=Edge
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/rules/imports.bend&name=deps.first
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/rules/imports.bend&name=fresh.fast