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author | Leonid Logvinov <logvinov.leon@gmail.com> | 2018-08-09 23:03:41 +0800 |
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committer | GitHub <noreply@github.com> | 2018-08-09 23:03:41 +0800 |
commit | 15e15f994a1b18cf2e9be151194c826d53a01601 (patch) | |
tree | 57b6db2615875c00cb16b1c94c7be113c2a18618 /packages/contract-wrappers/src/utils/calldata_optimization_utils.ts | |
parent | d44ff6a91582ed2b4dc25059d52556c4f9c6e163 (diff) | |
parent | 53713188fee57391040c24cc627fdc5ab8982d2e (diff) | |
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Merge branch 'development' into sol-cov-fixes
Diffstat (limited to 'packages/contract-wrappers/src/utils/calldata_optimization_utils.ts')
-rw-r--r-- | packages/contract-wrappers/src/utils/calldata_optimization_utils.ts | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/packages/contract-wrappers/src/utils/calldata_optimization_utils.ts b/packages/contract-wrappers/src/utils/calldata_optimization_utils.ts new file mode 100644 index 000000000..3172cf531 --- /dev/null +++ b/packages/contract-wrappers/src/utils/calldata_optimization_utils.ts @@ -0,0 +1,44 @@ +import { SignedOrder } from '@0xproject/types'; +import * as _ from 'lodash'; + +import { constants } from './constants'; + +export const calldataOptimizationUtils = { + /** + * 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 + */ + optimizeForwarderOrders(orders: SignedOrder[]): SignedOrder[] { + const optimizedOrders = _.map(orders, (order, index) => + transformOrder(order, { + makerAssetData: index === 0 ? order.makerAssetData : constants.NULL_BYTES, + takerAssetData: constants.NULL_BYTES, + }), + ); + 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 + */ + optimizeForwarderFeeOrders(orders: SignedOrder[]): SignedOrder[] { + const optimizedOrders = _.map(orders, (order, index) => + transformOrder(order, { + makerAssetData: constants.NULL_BYTES, + takerAssetData: constants.NULL_BYTES, + }), + ); + return optimizedOrders; + }, +}; + +const transformOrder = (order: SignedOrder, partialOrder: Partial<SignedOrder>) => { + return { + ...order, + ...partialOrder, + }; +}; |