ContractHelper

Git Source

Author: M^0 Labs

*See the following sources for very similar implementations:

• https://github.com/foundry-rs/forge-std/blob/914702ae99c92fcc41db5128ae57d24a11be4a39/src/Script.sol

• https://github.com/foundry-rs/forge-std/blob/578968243529db44acffcb802196ccab9b54db88/src/StdUtils.sol#L90

• https://github.com/SoulWallet/soul-wallet-contract/blob/develop/script/DeployHelper.sol#L133

• https://github.com/nomoixyz/vulcan/blob/f67740f8a9c846a543aebf29433ad69c3f0ff337/src/_internal/Accounts.sol#L118

• https://github.com/chainlight-io/publications/blob/887d6fe1a4f53573de6b89dbecba0c91b091dba2/ctf-writeups/paradigm2023/dropper/Solve.s.sol#L29

• https://github.com/HerodotusDev/herodotus-evm/blob/a0e9c8be1a17838633d3dcdd54b72682f7654abd/src/lib/CREATE.sol#L5

• https://github.com/Polymarket/ctf-exchange/blob/2745c3017400dbc1925711005fe76b018b999155/src/dev/util/Predictor.sol#L9

• https://github.com/delegatexyz/delegate-market/blob/2418182fe81491114370287412926b57c1ddbd94/script/ComputeAddress.s.sol#L5 Note that this implementation, as do many others, assumes an account does not have a nonce greater than 0xffffffff. If this is not the case, the address of the contract deployed by the account with the given nonce will be incorrect.*

Functions

getContractFrom

Returns the expected address of a contract deployed by account_ with transaction count nonce_.

function getContractFrom(address account_, uint256 nonce_) internal pure returns (address contract_);

Parameters

Name	Type	Description
account_	address	The address of the account deploying a contract.
nonce_	uint256	The nonce used in the deployment transaction.

Returns

Name	Type	Description
contract_	address	The expected address of the deployed contract.