def swaps

ezx@1.11.0.0 · src/ws/moved.bend:162

import Base
import ezx@1.11.0.0/src/ledger/upgrade.bend as U

162# the moves as the rewrites they make
163def swaps(ms: List<&2, Shift>) -> List<&2, U.Swap>:
164  match ms:
165    case []:
166      []
167    case Shift{_name, old, new} <> tl:
168      U.Swap{old, new} <> swaps(tl)