23 lines
886 B
TypeScript
23 lines
886 B
TypeScript
import { bytecode } from '@uniswap/v3-core/artifacts/contracts/UniswapV3Pool.sol/UniswapV3Pool.json'
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import { utils } from 'ethers'
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export const POOL_BYTECODE_HASH = utils.keccak256(bytecode)
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export function computePoolAddress(factoryAddress: string, [tokenA, tokenB]: [string, string], fee: number): string {
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const [token0, token1] = tokenA.toLowerCase() < tokenB.toLowerCase() ? [tokenA, tokenB] : [tokenB, tokenA]
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const constructorArgumentsEncoded = utils.defaultAbiCoder.encode(
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['address', 'address', 'uint24'],
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[token0, token1, fee]
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)
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const create2Inputs = [
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'0xff',
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factoryAddress,
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// salt
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utils.keccak256(constructorArgumentsEncoded),
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// init code hash
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POOL_BYTECODE_HASH,
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]
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const sanitizedInputs = `0x${create2Inputs.map((i) => i.slice(2)).join('')}`
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return utils.getAddress(`0x${utils.keccak256(sanitizedInputs).slice(-40)}`)
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}
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