charles-cooper’s gists

charles-cooper / selector-master.py

Created October 25, 2022 03:38 — forked from Philogy/selector-master.py

Minimal Constant OP Selector Switch Generator

	# @license MIT
	# @author Philogy <https://github.com/Philogy>

	from eth_utils.abi import function_signature_to_4byte_selector
	from eth_utils.crypto import keccak
	from math import ceil, log2
	import pyperclip


	def find_reselector_nonce(selectors, mask):

charles-cooper / output.evm

Last active August 29, 2023 16:55

transient storage example in vyper

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

charles-cooper / fast_min.asm

Created February 7, 2022 16:52

fast min

DUP2 DUP2 GT PUSH2 _join JUMPI SWAP1 _join JUMPDEST POP

charles-cooper / lll_features.vy

Created October 25, 2021 20:31

demonstrate LLL features used by vyper

	# example contract demonstrating LLL features

	x: public(uint256)
	y: public(Bytes[32])
	z: public(int128)
	w: public(bool)

	@external
	def __init__(x: uint256, y: Bytes[32], z: int128, w: bool):
	self.x = x

charles-cooper / output.ast_output.json

Last active October 21, 2021 01:19

Vyper Issue #2276

{"contract_name": "owned.vy", "ast": {"name": "owned.vy", "end_lineno": 7, "body": [{"end_lineno": 1, "annotation": {"end_lineno": 1, "func": {"end_lineno": 1, "src": "7:6:0", "end_col_offset": 13, "col_offset": 7, "ast_type": "Name", "node_id": 5, "id": "public", "lineno": 1}, "src": "7:15:0", "end_col_offset": 22, "col_offset": 7, "ast_type": "Call", "keywords": [], "node_id": 4, "args": [{"end_lineno": 1, "src": "14:7:0", "end_col_offset": 21, "col_offset": 14, "ast_type": "Name", "node_id": 7, "id": "address", "lineno": 1}], "lineno": 1, "keyword": null}, "value": null, "src": "0:22:0", "end_col_offset": 22, "col_offset": 0, "ast_type": "AnnAssign", "node_id": 1, "target": {"end_lineno": 1, "src": "0:5:0", "end_col_offset": 5, "col_offset": 0, "ast_type": "Name", "node_id": 2, "id": "owner", "lineno": 1}, "lineno": 1, "simple": 1}, {"name": "withdraw", "end_lineno": 7, "decorator_list": [{"end_lineno": 3, "src": "25:8:0", "end_col_offset": 9, "col_offset": 1, "ast_type": "Name", "node_id": 42, "id": "exte

charles-cooper / erc20.sol

Created October 15, 2021 21:40

compare erc20 in sol and vyper

	/*
	# @version 0.3.0
	# @dev Implementation of ERC-20 token standard, vyper/examples/tokens/ERC20.vy at tag v0.3.0
	# @author Takayuki Jimba (@yudetamago)
	# https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md

	# compiled using `vyper -f bytecode_runtime`: 1579 bytes

	from vyper.interfaces import ERC20

charles-cooper / wc_naive.c

Last active June 13, 2021 19:57

Naive version of wc which is 5x faster than the real wc. (Doesn't handle locales, utf-8, etc., just counts ASCII words).

	// Something I whipped up in half an hour.
	// Depends on strcspn being super fast.

	#define __USE_LARGEFILE64
	#define _LARGEFILE_SOURCE
	#define _LARGEFILE64_SOURCE

	#include <unistd.h>
	#include <string.h>
	#include <stdio.h>

charles-cooper / erc20.lll.py

Created September 13, 2019 23:23

Vyper ERC20 example

	[seq,
	[mstore, 32, 1461501637330902918203684832716283019655932542976],
	[mstore, 64, 170141183460469231731687303715884105727],
	[mstore, 96, -170141183460469231731687303715884105728],
	[mstore, 128, 1701411834604692317316873037158841057270000000000],
	[mstore, 160, -1701411834604692317316873037158841057280000000000],
	# Line 26
	[codecopy, 320, ~codelen, 128],
	[assert, [iszero, callvalue]],
	[codecopy, 448, [add, ~codelen, [codeload, ~codelen]], 96],

charles-cooper / foo.lll.py

Last active September 13, 2019 23:04

Vyper example for talk (filenames suffixed with .py to trigger syntax highlighter)

	[seq,
	[return,
	0,
	[lll,
	[seq,
	[mstore, 28, [calldataload, 0]],
	[mstore, 32, 1461501637330902918203684832716283019655932542976],
	[mstore, 64, 170141183460469231731687303715884105727],
	[mstore, 96, -170141183460469231731687303715884105728],
	[mstore, 128, 1701411834604692317316873037158841057270000000000],

charles-cooper / foo.ir

Last active April 6, 2019 03:22

Use solidity's assembler for fun and profit

	$ cat foo.ir
	IR:
	/*******************************************************
	* WARNING *
	* Solidity to Yul compilation is still EXPERIMENTAL *
	* It can result in LOSS OF FUNDS or worse *
	* !USE AT YOUR OWN RISK! *
	*******************************************************/

Charles Cooper charles-cooper