Philogy

# @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):

emo-eth

###########
# Imports #
###########

# the RPCs file should include RPC URLs and Etherscan API Keys for relevant networks
# (in a separate file so they don't get committed)
source "$(dirname "$0")/rpcs.sh"
# any useful addresses for various networks for easy reference
source "$(dirname "$0")/addresses.sh"
# any useful functions and definitions for interacting with Seaport

sbauch

// Please stop using the OpenSea API to load all of my NFTs.
// It's getting terribly unwieldy the more NFTs I own, and 
// I don't want to sift through a needle in a haystack to 
// find the NFT I want to select for display etc. You're 
// also contributing to the idea that NFTs are centralized,
// plus putting unnecessary load on OS servers.

// Most users though aren't technical enough to understand
// contract addresses and token IDs. So instead of asking 
// for those directly, use an input like this where a user

brockelmore

// SPDX-License-Identifier: UNLICENSE

pragma solidity >=0.8.0 <0.9.0;

// NOT TESTED - USE AT YOUR OWN RISK


// Supports 32 byte word types. Could be easily extended to multiword types by 
// passing in the size of the elements as well though
struct PushableArray {

hrkrshnn

Upgrade to at least 0.8.4

Using newer compiler versions and the optimizer gives gas optimizations and additional safety checks for free!

The advantages of versions 0.8.* over <0.8.0 are:

• Safemath by default from 0.8.0 (can be more gas efficient than some library based safemath).
• Low level inliner from 0.8.2, leads to cheaper runtime gas. Especially relevant when the contract has small functions. For

spalladino

pragma solidity ^0.7.0;

// Each mining pool that intends to provide flash loans deploys a Loaner contract and transfers ETH to it
// When testing each bundle, the diff in balance in this contract is taking into account for calculating effective gas price
// The contract loans funds only on blocks mined by the miner and on zero-gasprice txs
contract Loaner {
    address immutable owner;
    
    constructor(address _owner) {
        owner = _owner;