def is_score_address(value) -> bool:
"""
Checks if value is T_ADDR_SCORE type.
T_ADDR_SCORE is data type which is 40-digit hexadecimal string prefixed with `cx`.
:param value: SCORE address
"""
return is_str(value) and value.islower() and is_cx_prefixed(value) and len(remove_cx_prefix(value)) == 40
def is_wallet_address(value) -> bool:
"""
Checks if value is T_ADDR_EOA type.
T_ADDR_EOA is data type which is 40-digit hexadecimal string prefixed with `hx`.
:param value: wallet address
"""
return is_str(value) and value.islower() and is_hx_prefixed(value) and len(remove_hx_prefix(value)) == 40
def is_hex_block_hash(value) -> bool:
"""
Checks the value - a parameter is valid.
Hash value of a block starts with '0x' and 64 digits hex string
:param value: hash value of a block, hexadecimal digits. type(str)
:return: type(bool)
"""
return is_str(value) and is_0x_prefixed(value) and len(remove_0x_prefix(value)) == 64
def convert_hex_str_to_int(value: str) -> int:
"""Converts hex string prefixed with '0x' into int."""
if is_str(value):
return int(value, 16)
else:
raise DataTypeException("Data type should be string.")
def is_cx_prefixed(value: str) -> bool:
"""Used for checking an address of SCORE."""
if not is_str(value):
raise DataTypeException("Value type must be str. Got: {0}.".format(
repr(value)))
return value.startswith("cx")
def is_0x_prefixed(value: str) -> bool:
if not is_str(value):
raise DataTypeException("Value type must be str. Got: {0}".format(
repr(value)))
return value.startswith('0x')
def is_hx_prefixed(value):
"""Used for checking an address of a wallet."""
if not is_str(value):
raise DataTypeException("Value type must be str. Got: {0}.".format(
repr(value)))
return value.startswith('hx')
