Lock.has: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/lock/lock.bend as Lock
Lines 401-409 of ezx@1.11.0.0/src/lock/lock.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/lock/lock.bend&start_line=401&end_line=409

import Base

# whether a package is already resolved. The wanted hash is compared first,
# the way pkg's `fresh` compares a path, so a walk that passes over a hash it
# has is a walk whose hashes are distinct without a symmetry lemma.
def has(ds: List<&2, Pack>, +wanted: String) -> Bool:
  match ds:
    case []:
      False{}
    case x <> t:
      any.step(String.eq(wanted, pack.hash(x)), _u => has(t, wanted))

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.eq
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/lock/lock.bend&name=Pack
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/lock/lock.bend&name=any.step
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/lock/lock.bend&name=pack.hash