@uniswap/smart-order-router

Version:
Uniswap Smart Order Router
36 lines • 3.44 kB
JavaScript
import { BigNumber } from '@ethersproject/bignumber';
import { CurrencyAmount, WRAPPED_NATIVE_CURRENCY } from '../../../../util';
import { TickBasedHeuristicGasModelFactory } from '../tick-based-heuristic-gas-model';
export class V4HeuristicGasModelFactory extends TickBasedHeuristicGasModelFactory {
    constructor(provider) {
        super(provider);
    }
    async buildGasModel({ chainId, gasPriceWei, pools, amountToken, quoteToken, v2poolProvider, l2GasDataProvider, providerConfig, }) {
        return await super.buildGasModelInternal({
            chainId,
            gasPriceWei,
            pools,
            amountToken,
            quoteToken,
            v2poolProvider,
            l2GasDataProvider,
            providerConfig,
        });
    }
    estimateGas(routeWithValidQuote, gasPriceWei, chainId, providerConfig) {
        var _a;
        const totalInitializedTicksCrossed = this.totalInitializedTicksCrossed(routeWithValidQuote.initializedTicksCrossedList);
        const baseGasUse = routeWithValidQuote.quoterGasEstimate
            // we still need the gas override for native wrap/unwrap, because quoter doesn't simulate on universal router level
            .add((_a = providerConfig === null || providerConfig === void 0 ? void 0 : providerConfig.additionalGasOverhead) !== null && _a !== void 0 ? _a : BigNumber.from(0));
        const baseGasCostWei = gasPriceWei.mul(baseGasUse);
        const wrappedCurrency = WRAPPED_NATIVE_CURRENCY[chainId];
        const totalGasCostNativeCurrency = CurrencyAmount.fromRawAmount(wrappedCurrency, baseGasCostWei.toString());
        return {
            totalGasCostNativeCurrency,
            totalInitializedTicksCrossed,
            baseGasUse,
        };
    }
}
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