States
orderStatus reports Expired for an order that is still Open in storage but past its
deadline, so a reader never has to compute that themselves.
Expiry and refunds
After an order’s deadline, anyone may trigger its expiry. The remaining escrow always goes back to the maker, and expiry remains available while trading is paused.What a pause stops
What an unusable reference price stops
A pegged order has no price of its own, so pricing it from a stale or under-sampled average is
exactly the thing worth refusing. A fixed order’s ratio was locked at creation and needs nothing
from the feed.
No Rondo control path disables an exit. Cancellation remains callable regardless of the oracle,
protocol pause, or whether the maker still holds
MAKER_ROLE. If a token transfer is unavailable,
the refund waits until the transfer can complete.Enumeration has a sharp edge
EnumerableSet.remove swaps the last element into the freed slot. So an order cancelled between
two page reads slides backwards into a page the reader has already passed, and is never seen —
while still being open and fillable.