aboutsummaryrefslogtreecommitdiffstats
path: root/src/contract_wrappers/exchange_wrapper.ts
diff options
context:
space:
mode:
authorLeonid <logvinov.leon@gmail.com>2017-06-08 03:45:18 +0800
committerGitHub <noreply@github.com>2017-06-08 03:45:18 +0800
commit41f005a676b69311099441b170b277e76d5ca25b (patch)
tree447ac22825b000074a9ded906466b60a656fa5ce /src/contract_wrappers/exchange_wrapper.ts
parent7460acbc0b01df35b21971405d582621150443d4 (diff)
parent834b28bfbe26e0331820d978b5be659b27423528 (diff)
downloaddexon-sol-tools-41f005a676b69311099441b170b277e76d5ca25b.tar
dexon-sol-tools-41f005a676b69311099441b170b277e76d5ca25b.tar.gz
dexon-sol-tools-41f005a676b69311099441b170b277e76d5ca25b.tar.bz2
dexon-sol-tools-41f005a676b69311099441b170b277e76d5ca25b.tar.lz
dexon-sol-tools-41f005a676b69311099441b170b277e76d5ca25b.tar.xz
dexon-sol-tools-41f005a676b69311099441b170b277e76d5ca25b.tar.zst
dexon-sol-tools-41f005a676b69311099441b170b277e76d5ca25b.zip
Merge branch 'master' into batchCancelAsync
Diffstat (limited to 'src/contract_wrappers/exchange_wrapper.ts')
-rw-r--r--src/contract_wrappers/exchange_wrapper.ts64
1 files changed, 57 insertions, 7 deletions
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts
index af8b8db24..47c49fad6 100644
--- a/src/contract_wrappers/exchange_wrapper.ts
+++ b/src/contract_wrappers/exchange_wrapper.ts
@@ -146,6 +146,7 @@ export class ExchangeWrapper extends ContractWrapper {
await this.validateFillOrderAndThrowIfInvalidAsync(signedOrder, fillTakerAmount, takerAddress);
const [orderAddresses, orderValues] = ExchangeWrapper.getOrderAddressesAndValues(signedOrder);
+
const gas = await exchangeInstance.fill.estimateGas(
orderAddresses,
orderValues,
@@ -174,6 +175,56 @@ export class ExchangeWrapper extends ContractWrapper {
this.throwErrorLogsAsErrors(response.logs);
}
/**
+ * Attempts to fill a specific amount of an order. If the entire amount specified cannot be filled,
+ * the fill order is abandoned.
+ */
+ public async fillOrKillOrderAsync(signedOrder: SignedOrder, fillTakerAmount: BigNumber.BigNumber,
+ takerAddress: string) {
+ assert.doesConformToSchema('signedOrder',
+ SchemaValidator.convertToJSONSchemaCompatibleObject(signedOrder as object),
+ signedOrderSchema);
+ assert.isBigNumber('fillTakerAmount', fillTakerAmount);
+ await assert.isSenderAddressAsync('takerAddress', takerAddress, this.web3Wrapper);
+
+ const exchangeInstance = await this.getExchangeContractAsync();
+ await this.validateFillOrderAndThrowIfInvalidAsync(signedOrder, fillTakerAmount, takerAddress);
+
+ // Check that fillValue available >= fillTakerAmount
+ const orderHashHex = await this.getOrderHashHexAsync(signedOrder);
+ const unavailableTakerAmount = await this.getUnavailableTakerAmountAsync(orderHashHex);
+ const remainingTakerAmount = signedOrder.takerTokenAmount.minus(unavailableTakerAmount);
+ if (remainingTakerAmount < fillTakerAmount) {
+ throw new Error(ExchangeContractErrs.INSUFFICIENT_REMAINING_FILL_AMOUNT);
+ }
+
+ const [orderAddresses, orderValues] = ExchangeWrapper.getOrderAddressesAndValues(signedOrder);
+
+ const gas = await exchangeInstance.fillOrKill.estimateGas(
+ orderAddresses,
+ orderValues,
+ fillTakerAmount,
+ signedOrder.ecSignature.v,
+ signedOrder.ecSignature.r,
+ signedOrder.ecSignature.s,
+ {
+ from: takerAddress,
+ },
+ );
+ const response: ContractResponse = await exchangeInstance.fillOrKill(
+ orderAddresses,
+ orderValues,
+ fillTakerAmount,
+ signedOrder.ecSignature.v,
+ signedOrder.ecSignature.r,
+ signedOrder.ecSignature.s,
+ {
+ from: takerAddress,
+ gas,
+ },
+ );
+ this.throwErrorLogsAsErrors(response.logs);
+ }
+ /**
* Cancel a given fill amount of an order. Cancellations are cumulative.
*/
public async cancelOrderAsync(
@@ -258,11 +309,10 @@ export class ExchangeWrapper extends ContractWrapper {
logEventObj.watch(callback);
this.exchangeLogEventObjs.push(logEventObj);
}
- private async getOrderHashAsync(order: Order|SignedOrder): Promise<string> {
- const [orderAddresses, orderValues] = ExchangeWrapper.getOrderAddressesAndValues(order);
+ private async getOrderHashHexAsync(order: Order|SignedOrder): Promise<string> {
const exchangeInstance = await this.getExchangeContractAsync();
- const orderHash = utils.getOrderHashHex(order, exchangeInstance.address);
- return orderHash;
+ const orderHashHex = utils.getOrderHashHex(order, exchangeInstance.address);
+ return orderHashHex;
}
private async stopWatchingExchangeLogEventsAsync() {
const stopWatchingPromises = _.map(this.exchangeLogEventObjs, logEventObj => {
@@ -300,7 +350,7 @@ export class ExchangeWrapper extends ContractWrapper {
if (takerTokenCancelAmount.eq(0)) {
throw new Error(ExchangeContractErrs.ORDER_CANCEL_AMOUNT_ZERO);
}
- const orderHash = await this.getOrderHashAsync(order);
+ const orderHash = await this.getOrderHashHexAsync(order);
const unavailableAmount = await this.getUnavailableTakerAmountAsync(orderHash);
if (order.takerTokenAmount.minus(unavailableAmount).eq(0)) {
throw new Error(ExchangeContractErrs.ORDER_ALREADY_CANCELLED_OR_FILLED);
@@ -316,8 +366,8 @@ export class ExchangeWrapper extends ContractWrapper {
* Handling the edge-cases that arise when this happens would require making sure that the user has sufficient
* funds to pay both the fees and the transfer amount. We decided to punt on this for now as the contracts
* will throw for these edge-cases.
- * TODO: Throw errors before calling the smart contract for these edge-cases
- * TODO: in order to minimize the callers gas costs.
+ * TODO: Throw errors before calling the smart contract for these edge-cases in order to minimize
+ * the callers gas costs.
*/
private async validateFillOrderBalancesAndAllowancesAndThrowIfInvalidAsync(signedOrder: SignedOrder,
fillTakerAmount: BigNumber.BigNumber,