diff options
Diffstat (limited to 'packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts')
-rw-r--r-- | packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts b/packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts new file mode 100644 index 000000000..0041f1a64 --- /dev/null +++ b/packages/contract-wrappers/src/utils/market_orders_optimization_utils.ts @@ -0,0 +1,43 @@ +import { SignedOrder } from '@0xproject/types'; +import * as _ from 'lodash'; + +import { constants } from './constants'; + +export const marketOrdersOptimizationUtils = { + /** + * Takes an array of orders and outputs an array of equivalent orders where all takerAssetData are '0x' and + * all makerAssetData are '0x' except for that of the first order, which retains its original value + * @param orders An array of SignedOrder objects + * @returns optimized orders + */ + optimizeMarketOrders(orders: SignedOrder[]): SignedOrder[] { + const optimizedOrders = _.map(orders, (order, index) => { + const makerAssetData = index === 0 ? order.makerAssetData : constants.NULL_BYTES; + const takerAssetData = constants.NULL_BYTES; + return { + ...order, + makerAssetData, + takerAssetData, + }; + }); + return optimizedOrders; + }, + /** + * Takes an array of orders and outputs an array of equivalent orders where all takerAssetData are '0x' and + * all makerAssetData are '0x' + * @param orders An array of SignedOrder objects + * @returns optimized orders + */ + optimizeFeeOrders(orders: SignedOrder[]): SignedOrder[] { + const optimizedOrders = _.map(orders, order => { + const makerAssetData = constants.NULL_BYTES; + const takerAssetData = constants.NULL_BYTES; + return { + ...order, + makerAssetData, + takerAssetData, + }; + }); + return optimizedOrders; + }, +}; |