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authorLeonid Logvinov <logvinov.leon@gmail.com>2017-06-08 23:28:09 +0800
committerLeonid Logvinov <logvinov.leon@gmail.com>2017-06-08 23:28:09 +0800
commitcd25d38118de90f8282dc8e5e2b4ffb02fde9990 (patch)
treebb82f17aa1866aca84d31fcf1133d815bc312e37 /src/contract_wrappers
parentce3aed7236b718c31a3b7eeaedcdc707490be5c8 (diff)
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Implement fillOrderUpToAsync
Diffstat (limited to 'src/contract_wrappers')
-rw-r--r--src/contract_wrappers/exchange_wrapper.ts66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts
index 72ae0d07e..524ebdc0f 100644
--- a/src/contract_wrappers/exchange_wrapper.ts
+++ b/src/contract_wrappers/exchange_wrapper.ts
@@ -176,6 +176,72 @@ export class ExchangeWrapper extends ContractWrapper {
this.throwErrorLogsAsErrors(response.logs);
}
/**
+ * Sequentially and atomically fills signedOrders up to takerTokenFillAmount.
+ * If fill amount is reached - it succeeds and doesn't fill the rest of the orders.
+ * If fill amount is not reached - it just fills all the orders.
+ */
+ public async fillOrderUpToAsync(signedOrders: SignedOrder[], takerTokenFillAmount: BigNumber.BigNumber,
+ shouldCheckTransfer: boolean, takerAddress: string): Promise<void> {
+ const takerTokenAddresses = _.map(signedOrders, signedOrder => signedOrder.takerTokenAddress);
+ assert.assert(_.uniq(takerTokenAddresses).length === 1,
+ ExchangeContractErrs.MULTIPLE_TAKER_TOKENS_IN_FILL_UP_TO);
+ assert.isBigNumber('takerTokenFillAmount', takerTokenFillAmount);
+ assert.isBoolean('shouldCheckTransfer', shouldCheckTransfer);
+ await assert.isSenderAddressAsync('takerAddress', takerAddress, this.web3Wrapper);
+ _.forEach(signedOrders,
+ async (signedOrder: SignedOrder, i: number) => {
+ assert.doesConformToSchema(`signedOrder[${i}]`,
+ SchemaValidator.convertToJSONSchemaCompatibleObject(signedOrder as object),
+ signedOrderSchema);
+ await this.validateFillOrderAndThrowIfInvalidAsync(
+ signedOrder, takerTokenFillAmount, takerAddress);
+ });
+ if (_.isEmpty(signedOrders)) {
+ return; // no-op
+ }
+
+ const orderAddressesValuesAndSignatureArray = _.map(signedOrders, signedOrder => {
+ return [
+ ...ExchangeWrapper.getOrderAddressesAndValues(signedOrder),
+ signedOrder.ecSignature.v,
+ signedOrder.ecSignature.r,
+ signedOrder.ecSignature.s,
+ ];
+ });
+ // We use _.unzip<any> because _.unzip doesn't type check if values have different types :'(
+ const [orderAddressesArray, orderValuesArray, vArray, rArray, sArray] = _.unzip<any>(
+ orderAddressesValuesAndSignatureArray,
+ );
+
+ const exchangeInstance = await this.getExchangeContractAsync();
+ const gas = await exchangeInstance.fillUpTo.estimateGas(
+ orderAddressesArray,
+ orderValuesArray,
+ takerTokenFillAmount,
+ shouldCheckTransfer,
+ vArray,
+ rArray,
+ sArray,
+ {
+ from: takerAddress,
+ },
+ );
+ const response: ContractResponse = await exchangeInstance.fillUpTo(
+ orderAddressesArray,
+ orderValuesArray,
+ takerTokenFillAmount,
+ shouldCheckTransfer,
+ vArray,
+ rArray,
+ sArray,
+ {
+ from: takerAddress,
+ gas,
+ },
+ );
+ this.throwErrorLogsAsErrors(response.logs);
+ }
+ /**
* Batch version of fillOrderAsync.
* Executes multiple fills atomically in a single transaction.
* If shouldCheckTransfer is set to true, it will continue filling subsequent orders even when earlier ones fail.