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Simplify order checks

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This commit is contained in:
Leonid Logvinov
2017-07-19 10:25:40 -07:00
parent 4d27b89fe3
commit 1690aae1cf
1 changed files with 18 additions and 30 deletions
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48
src/utils/order_validation_utils.ts
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@@ -28,25 +28,19 @@ export class OrderValidationUtils {
const exchangeRate = signedOrder.takerTokenAmount.div(signedOrder.makerTokenAmount);
const fillMakerAmount = fillTakerAmount.div(exchangeRate);
if (isMakerTokenZRX) {
const requiredMakerAmount = fillMakerAmount.plus(signedOrder.makerFee);
if (requiredMakerAmount.greaterThan(makerBalance)) {
throw new Error(ExchangeContractErrs.InsufficientMakerBalance);
}
if (requiredMakerAmount.greaterThan(makerAllowance)) {
throw new Error(ExchangeContractErrs.InsufficientMakerAllowance);
}
} else {
const requiredMakerAmount = isMakerTokenZRX ? fillMakerAmount.plus(signedOrder.makerFee) : fillMakerAmount;
if (requiredMakerAmount.greaterThan(makerBalance)) {
throw new Error(ExchangeContractErrs.InsufficientMakerBalance);
}
if (requiredMakerAmount.greaterThan(makerAllowance)) {
throw new Error(ExchangeContractErrs.InsufficientMakerAllowance);
}
if (!isMakerTokenZRX) {
const makerZRXBalance = await this.tokenWrapper.getBalanceAsync(zrxTokenAddress, signedOrder.maker);
const makerZRXAllowance = await this.tokenWrapper.getProxyAllowanceAsync(
zrxTokenAddress, signedOrder.maker);
if (fillMakerAmount.greaterThan(makerBalance)) {
throw new Error(ExchangeContractErrs.InsufficientMakerBalance);
}
if (fillMakerAmount.greaterThan(makerAllowance)) {
throw new Error(ExchangeContractErrs.InsufficientMakerAllowance);
}
if (signedOrder.makerFee.greaterThan(makerZRXBalance)) {
throw new Error(ExchangeContractErrs.InsufficientMakerFeeBalance);
}
@@ -64,24 +58,18 @@ export class OrderValidationUtils {
const isTakerTokenZRX = signedOrder.takerTokenAddress === zrxTokenAddress;
if (isTakerTokenZRX) {
const requiredTakerAmount = fillTakerAmount.plus(signedOrder.takerFee);
if (requiredTakerAmount.greaterThan(takerBalance)) {
throw new Error(ExchangeContractErrs.InsufficientTakerBalance);
}
if (requiredTakerAmount.greaterThan(takerAllowance)) {
throw new Error(ExchangeContractErrs.InsufficientTakerAllowance);
}
} else {
const requiredTakerAmount = isTakerTokenZRX ? fillTakerAmount.plus(signedOrder.takerFee) : fillTakerAmount;
if (requiredTakerAmount.greaterThan(takerBalance)) {
throw new Error(ExchangeContractErrs.InsufficientTakerBalance);
}
if (requiredTakerAmount.greaterThan(takerAllowance)) {
throw new Error(ExchangeContractErrs.InsufficientTakerAllowance);
}
if (!isTakerTokenZRX) {
const takerZRXBalance = await this.tokenWrapper.getBalanceAsync(zrxTokenAddress, senderAddress);
const takerZRXAllowance = await this.tokenWrapper.getProxyAllowanceAsync(zrxTokenAddress, senderAddress);
if (fillTakerAmount.greaterThan(takerBalance)) {
throw new Error(ExchangeContractErrs.InsufficientTakerBalance);
}
if (fillTakerAmount.greaterThan(takerAllowance)) {
throw new Error(ExchangeContractErrs.InsufficientTakerAllowance);
}
if (signedOrder.takerFee.greaterThan(takerZRXBalance)) {
throw new Error(ExchangeContractErrs.InsufficientTakerFeeBalance);
}