Vectorized / attribute_list.py

Last active September 29, 2015 16:34

Python add/set attributes to list (or any built-in classes)

	class L(list):
	"""
	A subclass of list that can accept additional attributes.
	Should be able to be used just like a regular list.

	The problem:
	a = [1, 2, 4, 8]
	a.x = "Hey!" # AttributeError: 'list' object has no attribute 'x'

	The solution:

Vectorized / ERC721A.sol

Last active September 27, 2024 08:56

ERC721A Burnable (with configurable start index)

	// SPDX-License-Identifier: MIT
	// Creator: Chiru Labs

	pragma solidity ^0.8.0;

	import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
	import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
	import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
	import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';
	import '@openzeppelin/contracts/utils/Address.sol';

Vectorized / ERC721A.sol

Last active February 7, 2022 08:35

ERC721A (adjustable start index)

	// SPDX-License-Identifier: MIT
	// Creator: Chiru Labs

	pragma solidity ^0.8.0;

	import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
	import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
	import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
	import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';
	import '@openzeppelin/contracts/utils/Address.sol';

Vectorized / ERC721A.sol

Created February 23, 2022 15:07

ERC721A Re-entrant safe

	// SPDX-License-Identifier: MIT
	// Creator: Chiru Labs

	pragma solidity ^0.8.4;

	import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
	import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
	import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
	import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';
	import '@openzeppelin/contracts/utils/Address.sol';

Vectorized / changes_and_credits.md

Created April 10, 2022 23:21

ERC721A v3.2.0 changes and credits

Changes:

Vectorized / ToStringExamples.sol

Last active May 18, 2022 06:16

Solidity uint256 to string (base10)

	// SPDX-License-Identifier: MIT
	// Author: vectorized.eth
	pragma solidity ^0.8.0;
	pragma abicoder v2;

	contract ToStringExamples {

	constructor() {}

	function toStringOriginal(uint256 value) public pure returns (string memory) {

Vectorized / YulSnippets.sol

Last active April 29, 2023 21:55

Solidity Yul Assembly Snippets

	// SPDX-License-Identifier: MIT
	// Author: vectorized.eth
	pragma solidity ^0.8.0;
	pragma abicoder v2;

	// DISCLAIMER:
	// This is experimental software and is provided on an "as is" and "as available" basis.
	// We do not give any warranties and will not be liable for any loss incurred through any use of this codebase.

	library Base64 {

Vectorized / Summary.md

Last active July 12, 2022 10:04

Vyper vs Solidity Gas Benchmarks

Summary

Solidity: 26869
Vyper: 27729

Note that the Solidity version has the added functionality:

Vectorized / LibString.sol

Last active June 16, 2023 08:51

Solidity String Replace

	// SPDX-License-Identifier: MIT
	pragma solidity >=0.8.0;

	library LibString {
	function replace(
	string memory subject,
	string memory search,
	string memory replacement
	) internal pure returns (string memory result) {
	assembly {

Vectorized / MappingTester.sol

Created June 22, 2022 17:09

Mapping Gas Tests

	// SPDX-License-Identifier: MIT
	pragma solidity ^0.8.11;

	import "@openzeppelin/contracts/utils/structs/BitMaps.sol";

	contract MappingTester {
	using BitMaps for BitMaps.BitMap;

	mapping(uint256 => bool) public map;
	mapping(address => bool) public addrMap;

Vectorized Vectorized