ethereum.london.utils.hexadecimal
Utility Functions For Hexadecimal Strings ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
.. contents:: Table of Contents :backlinks: none :local:
Introduction
Hexadecimal utility functions used in this specification, specific to London types.
hex_to_root
Convert hex string to trie root.
Parameters
hex_string : The hexadecimal string to be converted to trie root.
Returns
root : Root
Trie root obtained from the given hexadecimal string.
def hex_to_root(hex_string: str) -> Root:
| 21 | """ |
|---|---|
| 22 | Convert hex string to trie root. |
| 23 | |
| 24 | Parameters |
| 25 | ---------- |
| 26 | hex_string : |
| 27 | The hexadecimal string to be converted to trie root. |
| 28 | |
| 29 | Returns |
| 30 | ------- |
| 31 | root : `Root` |
| 32 | Trie root obtained from the given hexadecimal string. |
| 33 | """ |
| 34 | return Root(bytes.fromhex(remove_hex_prefix(hex_string))) |
hex_to_bloom
Convert hex string to bloom.
Parameters
hex_string : The hexadecimal string to be converted to bloom.
Returns
bloom : Bloom
Bloom obtained from the given hexadecimal string.
def hex_to_bloom(hex_string: str) -> Bloom:
| 38 | """ |
|---|---|
| 39 | Convert hex string to bloom. |
| 40 | |
| 41 | Parameters |
| 42 | ---------- |
| 43 | hex_string : |
| 44 | The hexadecimal string to be converted to bloom. |
| 45 | |
| 46 | Returns |
| 47 | ------- |
| 48 | bloom : `Bloom` |
| 49 | Bloom obtained from the given hexadecimal string. |
| 50 | """ |
| 51 | return Bloom(bytes.fromhex(remove_hex_prefix(hex_string))) |
hex_to_address
Convert hex string to Address (20 bytes).
Parameters
hex_string : The hexadecimal string to be converted to Address.
Returns
address : Address
The address obtained from the given hexadecimal string.
def hex_to_address(hex_string: str) -> Address:
| 55 | """ |
|---|---|
| 56 | Convert hex string to Address (20 bytes). |
| 57 | |
| 58 | Parameters |
| 59 | ---------- |
| 60 | hex_string : |
| 61 | The hexadecimal string to be converted to Address. |
| 62 | |
| 63 | Returns |
| 64 | ------- |
| 65 | address : `Address` |
| 66 | The address obtained from the given hexadecimal string. |
| 67 | """ |
| 68 | return Address(bytes.fromhex(remove_hex_prefix(hex_string).rjust(40, "0"))) |