def get_constructor_arguments(contract: Contract,
args: Optional[list] = None,
kwargs: Optional[dict] = None):
"""Get constructor arguments for Etherscan verify.
https://etherscanio.freshdesk.com/support/solutions/articles/16000053599-contract-verification-constructor-arguments
"""
# return contract._encode_constructor_data(args=args, kwargs=kwargs)
constructor_abi = get_constructor_abi(contract.abi)
if args is not None:
return contract._encode_constructor_data(args=args, kwargs=kwargs)
else:
constructor_abi = get_constructor_abi(contract.abi)
kwargs = kwargs or {}
arguments = merge_args_and_kwargs(constructor_abi, [], kwargs)
# deploy_data = add_0x_prefix(
# contract._encode_abi(constructor_abi, arguments)
#)
# TODO: Looks like recent Web3.py ABI change
deploy_data = encode_abi(contract.web3, constructor_abi, arguments)
return deploy_data
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 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 _encode_data_in_transaction(self, *args, **kwargs):
constructor_abi = get_constructor_abi(self.abi)
if constructor_abi:
if not args:
args = tuple()
if not kwargs:
kwargs = {}
arguments = merge_args_and_kwargs(constructor_abi, args, kwargs)
data = add_0x_prefix(
encode_abi(self.web3, constructor_abi, arguments, data=self.bytecode)
)
else:
data = to_hex(self.bytecode)
return data
def _encode_constructor_data(cls, args=None, kwargs=None):
constructor_abi = get_constructor_abi(cls.abi)
if constructor_abi:
if args is None:
args = tuple()
if kwargs is None:
kwargs = {}
arguments = merge_args_and_kwargs(constructor_abi, args, kwargs)
deploy_data = add_0x_prefix(
encode_abi(cls.web3, constructor_abi, arguments, data=cls.bytecode)
)
else:
deploy_data = to_hex(cls.bytecode)
return deploy_data
def _encode_constructor_data(cls, args=None, kwargs=None):
constructor_abi = get_constructor_abi(cls.abi)
if constructor_abi:
if args is None:
args = tuple()
if kwargs is None:
kwargs = {}
arguments = merge_args_and_kwargs(constructor_abi, args, kwargs)
deploy_data = add_0x_prefix(
encode_abi(cls.web3, constructor_abi, arguments, data=cls.bytecode)
)
else:
deploy_data = to_hex(cls.bytecode)
return deploy_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)
def _encode_transaction_data(cls):
return add_0x_prefix(
encode_abi(cls.web3, cls.abi, cls.arguments, cls.selector))
def _encode_transaction_data(cls):
return add_0x_prefix(encode_abi(cls.web3, cls.abi, cls.arguments, cls.selector))
