[Feature Request] getCreate2Address & pack

[matthewlilley]

It would be useful to be able to have available some common functions like getCreate2Address and pack to reduce calls where computation maybe a valid approach instead.

References:

https://github.com/ethers-io/ethers.js/blob/master/packages/address/src.ts/index.ts#L143
https://github.com/ethers-io/ethers.js/blob/master/packages/solidity/src.ts/index.ts#L84

[LufyCZ]

The code is a bit ugly, but it's tested and works like a charm

export default function getCreate2Address(
  from: Bytes,
  salt: Bytes,
  initCodeHash: Bytes
): Bytes {
  return Bytes.fromHexString(
    Bytes.fromByteArray(
      crypto.keccak256(
        Bytes.fromHexString(
          "0xff" +
            from.toHexString().slice(2) +
            salt.toHexString().slice(2) +
            initCodeHash.toHexString().slice(2)
        )
      )
    )
      .toHexString()
      .slice(26)
  ) as Bytes;
}

[matthewlilley]

The code is a bit ugly, but it's tested and works like a charm

export default function getCreate2Address(
  from: Bytes,
  salt: Bytes,
  initCodeHash: Bytes
): Bytes {
  return Bytes.fromHexString(
    Bytes.fromByteArray(
      crypto.keccak256(
        Bytes.fromHexString(
          "0xff" +
            from.toHexString().slice(2) +
            salt.toHexString().slice(2) +
            initCodeHash.toHexString().slice(2)
        )
      )
    )
      .toHexString()
      .slice(26)
  ) as Bytes;
}

Just reimplemented our exchange subgraph and made use of this, like Lufy said, works like a charm.

[schmidsi]

@saihaj this is done, no?

[saihaj]

I didn't get to do pack but create2 is available now!