getDelta method

StateEntryDelta getDelta(
  1. String piece,
  2. String lastPiece
)

Implementation

StateEntryDelta getDelta(String piece, String lastPiece) {
  if (piece == lastPiece) return StateEntryDelta.none;
  if (lastPiece == "") return StateEntryDelta.added;
  if (piece == "") return StateEntryDelta.removed;
  return StateEntryDelta.replaced;
}