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-rw-r--r--src/contract_wrappers/exchange_wrapper.ts17
1 files changed, 12 insertions, 5 deletions
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts
index 76c35840a..beaf60ba0 100644
--- a/src/contract_wrappers/exchange_wrapper.ts
+++ b/src/contract_wrappers/exchange_wrapper.ts
@@ -677,15 +677,22 @@ export class ExchangeWrapper extends ContractWrapper {
await this._orderValidationUtils.validateFillOrKillOrderThrowIfInvalidAsync(
signedOrder, fillTakerTokenAmount, takerAddress, zrxTokenAddress);
}
- public async isRoundingErrorAsync(numerator: BigNumber.BigNumber,
- demoninator: BigNumber.BigNumber,
+ /**
+ * Checks if rounding error will be > 0.1%
+ * when computing makerTokenAmount by doing `(fillTakerTokenAmount * makerTokenAmount) / takerTokenAmount`
+ * @param fillTakerTokenAmount The amount of the order (in taker tokens baseUnits) that you wish to fill.
+ * @param takerTokenAmount The order size on the taker side
+ * @param makerTokenAmount The order size on the maker size
+ */
+ public async isRoundingErrorAsync(fillTakerTokenAmount: BigNumber.BigNumber,
+ takerTokenAmount: BigNumber.BigNumber,
makerTokenAmount: BigNumber.BigNumber): Promise<boolean> {
- assert.isBigNumber('numerator', numerator);
- assert.isBigNumber('demoninator', demoninator);
+ assert.isBigNumber('fillTakerTokenAmount', fillTakerTokenAmount);
+ assert.isBigNumber('takerTokenAmount', takerTokenAmount);
assert.isBigNumber('makerTokenAmount', makerTokenAmount);
const exchangeInstance = await this._getExchangeContractAsync();
const isRoundingError = await exchangeInstance.isRoundingError.call(
- numerator, demoninator, makerTokenAmount,
+ fillTakerTokenAmount, takerTokenAmount, makerTokenAmount,
);
return isRoundingError;
}