Function: _executeBidLimitOrder(PerpBook ds, Order newOrder, LimitOrderType limitOrderType)

This internal function handles the matching and placement of a taker bid limit order (a BUY order) against the ask side of the order book. If the bid is not fully filled, the remaining portion can be placed into the order book.

Branches and code coverage

Intended branches

• Order fully matches against existing asks.

  Test coverage

• Order partially matches — remainder is placed on the book.

  Test coverage

• Order does not match at all, and the entire order is placed on the book.

  Test coverage

Negative behavior

• limitOrderType == LimitOrderType.POST_ONLY && BestAsk <= newOrder.price.

  Negative test

• numBids > maxNumOrders and newOrder.price < MinBidPrice.

  Negative test