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-rw-r--r--packages/order-utils/src/market_utils.ts72
1 files changed, 36 insertions, 36 deletions
diff --git a/packages/order-utils/src/market_utils.ts b/packages/order-utils/src/market_utils.ts
index 58e9ab7ba..a0a827546 100644
--- a/packages/order-utils/src/market_utils.ts
+++ b/packages/order-utils/src/market_utils.ts
@@ -1,5 +1,5 @@
import { schemas } from '@0xproject/json-schemas';
-import { SignedOrder } from '@0xproject/types';
+import { Order } from '@0xproject/types';
import { BigNumber } from '@0xproject/utils';
import * as _ from 'lodash';
@@ -12,40 +12,40 @@ export const marketUtils = {
* Takes an array of orders and returns a subset of those orders that has enough makerAssetAmount
* in order to fill the input makerAssetFillAmount plus slippageBufferAmount. Iterates from first order to last order.
* Sort the input by ascending rate in order to get the subset of orders that will cost the least ETH.
- * @param signedOrders An array of objects that conform to the SignedOrder interface. All orders should specify the same makerAsset.
+ * @param orders An array of objects that extend the Order interface. All orders should specify the same makerAsset.
* All orders should specify WETH as the takerAsset.
* @param makerAssetFillAmount The amount of makerAsset desired to be filled.
* @param opts Optional arguments this function accepts.
* @return Resulting orders and remaining fill amount that could not be covered by the input.
*/
- findOrdersThatCoverMakerAssetFillAmount(
- signedOrders: SignedOrder[],
+ findOrdersThatCoverMakerAssetFillAmount<T extends Order>(
+ orders: T[],
makerAssetFillAmount: BigNumber,
opts?: FindOrdersThatCoverMakerAssetFillAmountOpts,
- ): { resultOrders: SignedOrder[]; remainingFillAmount: BigNumber } {
- assert.doesConformToSchema('signedOrders', signedOrders, schemas.signedOrdersSchema);
+ ): { resultOrders: T[]; remainingFillAmount: BigNumber } {
+ assert.doesConformToSchema('orders', orders, schemas.ordersSchema);
assert.isValidBaseUnitAmount('makerAssetFillAmount', makerAssetFillAmount);
- // try to get remainingFillableMakerAssetAmounts from opts, if it's not there, use makerAssetAmount values from signedOrders
+ // try to get remainingFillableMakerAssetAmounts from opts, if it's not there, use makerAssetAmount values from orders
const remainingFillableMakerAssetAmounts = _.get(
opts,
'remainingFillableMakerAssetAmounts',
- _.map(signedOrders, order => order.makerAssetAmount),
+ _.map(orders, order => order.makerAssetAmount),
) as BigNumber[];
_.forEach(remainingFillableMakerAssetAmounts, (amount, index) =>
assert.isValidBaseUnitAmount(`remainingFillableMakerAssetAmount[${index}]`, amount),
);
assert.assert(
- signedOrders.length === remainingFillableMakerAssetAmounts.length,
- 'Expected signedOrders.length to equal opts.remainingFillableMakerAssetAmounts.length',
+ orders.length === remainingFillableMakerAssetAmounts.length,
+ 'Expected orders.length to equal opts.remainingFillableMakerAssetAmounts.length',
);
// try to get slippageBufferAmount from opts, if it's not there, default to 0
const slippageBufferAmount = _.get(opts, 'slippageBufferAmount', constants.ZERO_AMOUNT) as BigNumber;
assert.isValidBaseUnitAmount('opts.slippageBufferAmount', slippageBufferAmount);
// calculate total amount of makerAsset needed to be filled
const totalFillAmount = makerAssetFillAmount.plus(slippageBufferAmount);
- // iterate through the signedOrders input from left to right until we have enough makerAsset to fill totalFillAmount
+ // iterate through the orders input from left to right until we have enough makerAsset to fill totalFillAmount
const result = _.reduce(
- signedOrders,
+ orders,
({ resultOrders, remainingFillAmount }, order, index) => {
if (remainingFillAmount.lessThanOrEqualTo(constants.ZERO_AMOUNT)) {
return { resultOrders, remainingFillAmount: constants.ZERO_AMOUNT };
@@ -64,61 +64,61 @@ export const marketUtils = {
};
}
},
- { resultOrders: [] as SignedOrder[], remainingFillAmount: totalFillAmount },
+ { resultOrders: [] as T[], remainingFillAmount: totalFillAmount },
);
return result;
},
/**
* Takes an array of orders and an array of feeOrders. Returns a subset of the feeOrders that has enough ZRX
- * in order to fill the takerFees required by signedOrders plus a slippageBufferAmount.
+ * in order to fill the takerFees required by orders plus a slippageBufferAmount.
* Iterates from first feeOrder to last. Sort the feeOrders by ascending rate in order to get the subset of
* feeOrders that will cost the least ETH.
- * @param signedOrders An array of objects that conform to the SignedOrder interface. All orders should specify ZRX as
- * the makerAsset and WETH as the takerAsset.
- * @param signedFeeOrders An array of objects that conform to the SignedOrder interface. All orders should specify ZRX as
- * the makerAsset and WETH as the takerAsset.
- * @param opts Optional arguments this function accepts.
+ * @param orders An array of objects that extend the Order interface. All orders should specify ZRX as
+ * the makerAsset and WETH as the takerAsset.
+ * @param feeOrders An array of objects that extend the Order interface. All orders should specify ZRX as
+ * the makerAsset and WETH as the takerAsset.
+ * @param opts Optional arguments this function accepts.
* @return Resulting orders and remaining fee amount that could not be covered by the input.
*/
- findFeeOrdersThatCoverFeesForTargetOrders(
- signedOrders: SignedOrder[],
- signedFeeOrders: SignedOrder[],
+ findFeeOrdersThatCoverFeesForTargetOrders<T extends Order>(
+ orders: T[],
+ feeOrders: T[],
opts?: FindFeeOrdersThatCoverFeesForTargetOrdersOpts,
- ): { resultOrders: SignedOrder[]; remainingFeeAmount: BigNumber } {
- assert.doesConformToSchema('signedOrders', signedOrders, schemas.signedOrdersSchema);
- assert.doesConformToSchema('signedFeeOrders', signedFeeOrders, schemas.signedOrdersSchema);
- // try to get remainingFillableMakerAssetAmounts from opts, if it's not there, use makerAssetAmount values from signedOrders
+ ): { resultOrders: T[]; remainingFeeAmount: BigNumber } {
+ assert.doesConformToSchema('orders', orders, schemas.ordersSchema);
+ assert.doesConformToSchema('feeOrders', feeOrders, schemas.ordersSchema);
+ // try to get remainingFillableMakerAssetAmounts from opts, if it's not there, use makerAssetAmount values from orders
const remainingFillableMakerAssetAmounts = _.get(
opts,
'remainingFillableMakerAssetAmounts',
- _.map(signedOrders, order => order.makerAssetAmount),
+ _.map(orders, order => order.makerAssetAmount),
) as BigNumber[];
_.forEach(remainingFillableMakerAssetAmounts, (amount, index) =>
assert.isValidBaseUnitAmount(`remainingFillableMakerAssetAmount[${index}]`, amount),
);
assert.assert(
- signedOrders.length === remainingFillableMakerAssetAmounts.length,
- 'Expected signedOrders.length to equal opts.remainingFillableMakerAssetAmounts.length',
+ orders.length === remainingFillableMakerAssetAmounts.length,
+ 'Expected orders.length to equal opts.remainingFillableMakerAssetAmounts.length',
);
- // try to get remainingFillableFeeAmounts from opts, if it's not there, use makerAssetAmount values from signedFeeOrders
+ // try to get remainingFillableFeeAmounts from opts, if it's not there, use makerAssetAmount values from feeOrders
const remainingFillableFeeAmounts = _.get(
opts,
'remainingFillableFeeAmounts',
- _.map(signedFeeOrders, order => order.makerAssetAmount),
+ _.map(feeOrders, order => order.makerAssetAmount),
) as BigNumber[];
_.forEach(remainingFillableFeeAmounts, (amount, index) =>
assert.isValidBaseUnitAmount(`remainingFillableFeeAmounts[${index}]`, amount),
);
assert.assert(
- signedOrders.length === remainingFillableMakerAssetAmounts.length,
- 'Expected signedFeeOrders.length to equal opts.remainingFillableFeeAmounts.length',
+ feeOrders.length === remainingFillableFeeAmounts.length,
+ 'Expected feeOrders.length to equal opts.remainingFillableFeeAmounts.length',
);
// try to get slippageBufferAmount from opts, if it's not there, default to 0
const slippageBufferAmount = _.get(opts, 'slippageBufferAmount', constants.ZERO_AMOUNT) as BigNumber;
assert.isValidBaseUnitAmount('opts.slippageBufferAmount', slippageBufferAmount);
- // calculate total amount of ZRX needed to fill signedOrders
+ // calculate total amount of ZRX needed to fill orders
const totalFeeAmount = _.reduce(
- signedOrders,
+ orders,
(accFees, order, index) => {
const makerAssetAmountAvailable = remainingFillableMakerAssetAmounts[index];
const feeToFillMakerAssetAmountAvailable = makerAssetAmountAvailable
@@ -129,7 +129,7 @@ export const marketUtils = {
constants.ZERO_AMOUNT,
);
const { resultOrders, remainingFillAmount } = marketUtils.findOrdersThatCoverMakerAssetFillAmount(
- signedFeeOrders,
+ feeOrders,
totalFeeAmount,
{
remainingFillableMakerAssetAmounts: remainingFillableFeeAmounts,