def encodeABI(cls, fn_name, args=None, kwargs=None, data=None): """ Encodes the arguments using the Ethereum ABI for the contract function that matches the given name and arguments.. :param data: defaults to function selector """ fn_abi, fn_selector, fn_arguments = get_function_info( cls.abi, fn_name, args, kwargs, ) if data is None: data = fn_selector return encode_abi(cls.web3, fn_abi, fn_arguments, data)
def from_signature(cls, fn_sign: str, fn_args: list): """ Allow to create a `Calldata` from a function signature and a list of arguments. :param fn_sign: the function signature ie. "function(uint256,address)" :param fn_args: arguments to the function ie. [123, "0x00...00"] :return: """ assert isinstance(fn_sign, str) assert isinstance(fn_args, list) fn_split = re.split('\W+', fn_sign) fn_name = fn_split[0] fn_args_type = [{"type": type} for type in fn_split[1:] if type] fn_abi = {"type": "function", "name": fn_name, "inputs": fn_args_type} fn_abi, fn_selector, fn_arguments = get_function_info("test", fn_abi=fn_abi, args=fn_args) calldata = encode_abi(Web3, fn_abi, fn_arguments, fn_selector) return cls(calldata)