izqui
/ forwarder.sol
Last active
October 21, 2021 04:24
Very cheap to deploy (66k gas) forwarder contracts that can clone any contract and still have their own storage
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| // Bytecode origin https://www.reddit.com/r/ethereum/comments/6ic49q/any_assembly_programmers_willing_to_write_a/dj5ceuw/ | |
| // Modified version of Vitalik's https://www.reddit.com/r/ethereum/comments/6c1jui/delegatecall_forwarders_how_to_save_5098_on/ | |
| // Credits to Jordi Baylina for this way of deploying contracts https://gist.github.com/jbaylina/e8ac19b8e7478fd10cf0363ad1a5a4b3 | |
| // Forwarder is slightly modified to only return 256 bytes (8 normal returns) | |
| // Deployed Factory in Kovan: https://kovan.etherscan.io/address/0xaebc118657099e2110c90494f48b3d21329b23eb | |
| // Example of a Forwarder deploy using the Factory: https://kovan.etherscan.io/tx/0xe995dd023c8336685cb819313d933ae8938009f9c8c0e1af6c57b8be06986957 | |
| // Just 66349 gas per contract |
chriseth
/ Patricia.sol
Last active
November 3, 2020 17:27
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| contract PatriciaTree { | |
| // List of all keys, not necessarily sorted. | |
| bytes[] keys; | |
| // Mapping of hash of key to value | |
| mapping (bytes32 => bytes) values; | |
| struct Label { | |
| bytes32 data; | |
| uint length; | |
| } |
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| // Copyright (C) 2018 LikeCoin Foundation Limited | |
| // | |
| // This file is part of LikeCoin Smart Contract. | |
| // | |
| // LikeCoin Smart Contract is free software: you can redistribute it and/or modify | |
| // it under the terms of the GNU General Public License as published by | |
| // the Free Software Foundation, either version 3 of the License, or | |
| // (at your option) any later version. | |
| // | |
| // LikeCoin Smart Contract is distributed in the hope that it will be useful, |
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