How to create the pair without assembly in UniswapV2Factory-CodePudding

I'm going to deploy the Uniswap contract on my customized Ethereum.

Could I replace fancy footwork in the factory by Solidity code?

I need to update this code assembly { pair := create2(0, add(bytecode, 32), mload(bytecode), salt)} into general solidity code.

I tried this, but not working well.

CodePudding user response：

Uniswap version 1 uses library contracts with hardcoded pair contract addresses.

First deploy the factory contract
Then call Factory.pairCodeHash - the hardcoded hex string of the init code
Replace the pair code hash in the source code, compile the rest of the contracts

More tips in this Python module.

CodePudding user response：

I found the solution

bytes memory bytecode = type(UniswapV2Pair).creationCode;
bytes32 salt = keccak256(abi.encodePacked(token0, token1));
assembly {
  pair := create2(0, add(bytecode, 32), mload(bytecode), salt)
}

I updated above code into

UniswapV2Pair newPair = new UniswapV2Pair();
IUniswapV2Pair(pair).initialize(token0, token1);