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pragma solidity 0.8.20;

// forgefmt: disable-start
/**
 *                                                           bbbbbbbb                                         dddddddd
 *                                                           b::::::b                                         d::::::d
 *                                                           b::::::b                                         d::::::d
 *                                                           b::::::b                                         d::::::d
 *                                                            b:::::b                                         d:::::d
 *    ggggggggg   ggggg aaaaaaaaaaaaa      ssssssssss         b:::::bbbbbbbbb      aaaaaaaaaaaaa      ddddddddd:::::d
 *   g:::::::::ggg::::g a::::::::::::a   ss::::::::::s        b::::::::::::::bb    a::::::::::::a   dd::::::::::::::d
 *  g:::::::::::::::::g aaaaaaaaa:::::ass:::::::::::::s       b::::::::::::::::b   aaaaaaaaa:::::a d::::::::::::::::d
 * g::::::ggggg::::::gg          a::::as::::::ssss:::::s      b:::::bbbbb:::::::b           a::::ad:::::::ddddd:::::d
 * g:::::g     g:::::g    aaaaaaa:::::a s:::::s  ssssss       b:::::b    b::::::b    aaaaaaa:::::ad::::::d    d:::::d
 * g:::::g     g:::::g  aa::::::::::::a   s::::::s            b:::::b     b:::::b  aa::::::::::::ad:::::d     d:::::d
 * g:::::g     g:::::g a::::aaaa::::::a      s::::::s         b:::::b     b:::::b a::::aaaa::::::ad:::::d     d:::::d
 * g::::::g    g:::::ga::::a    a:::::assssss   s:::::s       b:::::b     b:::::ba::::a    a:::::ad:::::d     d:::::d
 * g:::::::ggggg:::::ga::::a    a:::::as:::::ssss::::::s      b:::::bbbbbb::::::ba::::a    a:::::ad::::::ddddd::::::dd
 *  g::::::::::::::::ga:::::aaaa::::::as::::::::::::::s       b::::::::::::::::b a:::::aaaa::::::a d:::::::::::::::::d
 *   gg::::::::::::::g a::::::::::aa:::as:::::::::::ss        b:::::::::::::::b   a::::::::::aa:::a d:::::::::ddd::::d
 *     gggggggg::::::g  aaaaaaaaaa  aaaa sssssssssss          bbbbbbbbbbbbbbbb     aaaaaaaaaa  aaaa  ddddddddd   ddddd
 *             g:::::g
 * gggggg      g:::::g
 * g:::::gg   gg:::::g
 *  g::::::ggg:::::::g
 *   gg:::::::::::::g
 *     ggg::::::ggg
 *        gggggg
 */
// forgefmt: disable-end

/// @title GasliteDrop
/// @notice Turbo gas optimized bulk transfers of ERC20, ERC721, and ETH
/// @author Harrison (@PopPunkOnChain)
/// @author Gaslite (@GasliteGG)
/// @author Pop Punk LLC (@PopPunkLLC)
contract GasliteDrop {
    /// @notice Airdrop ERC721 tokens to a list of addresses
    /// @param _nft The address of the ERC721 contract
    /// @param _addresses The addresses to airdrop to
    /// @param _tokenIds The tokenIds to airdrop
    function airdropERC721(address _nft, address[] calldata _addresses, uint256[] calldata _tokenIds)
        external
        payable
    {
        assembly {
            // Check that the number of addresses matches the number of tokenIds
            if iszero(eq(_tokenIds.length, _addresses.length)) { revert(0, 0) }
            // transferFrom(address from, address to, uint256 tokenId)
            mstore(0x00, hex"23b872dd")
            // from address
            mstore(0x04, caller())

            // end of array
            let end := add(_addresses.offset, shl(5, _addresses.length))
            // diff = _addresses.offset - _tokenIds.offset
            let diff := sub(_addresses.offset, _tokenIds.offset)

            // Loop through the addresses
            for { let addressOffset := _addresses.offset } 1 {} {
                // to address
                mstore(0x24, calldataload(addressOffset))
                // tokenId
                mstore(0x44, calldataload(sub(addressOffset, diff)))
                // transfer the token
                if iszero(call(gas(), _nft, 0, 0x00, 0x64, 0, 0)) { revert(0, 0) }
                // increment the address offset
                addressOffset := add(addressOffset, 0x20)
                // if addressOffset >= end, break
                if iszero(lt(addressOffset, end)) { break }
            }
        }
    }

    /// @notice Airdrop ERC20 tokens to a list of addresses
    /// @param _token The address of the ERC20 contract
    /// @param _addresses The addresses to airdrop to
    /// @param _amounts The amounts to airdrop
    /// @param _totalAmount The total amount to airdrop
    function airdropERC20(
        address _token,
        address[] calldata _addresses,
        uint256[] calldata _amounts,
        uint256 _totalAmount
    ) external payable {
        assembly {
            // Check that the number of addresses matches the number of amounts
            if iszero(eq(_amounts.length, _addresses.length)) { revert(0, 0) }

            // transferFrom(address from, address to, uint256 amount)
            mstore(0x00, hex"23b872dd")
            // from address
            mstore(0x04, caller())
            // to address (this contract)
            mstore(0x24, address())
            // total amount
            mstore(0x44, _totalAmount)

            // transfer total amount to this contract
            if iszero(call(gas(), _token, 0, 0x00, 0x64, 0, 0)) { revert(0, 0) }

            // transfer(address to, uint256 value)
            mstore(0x00, hex"a9059cbb")

            // end of array
            let end := add(_addresses.offset, shl(5, _addresses.length))
            // diff = _addresses.offset - _amounts.offset
            let diff := sub(_addresses.offset, _amounts.offset)

            // Loop through the addresses
            for { let addressOffset := _addresses.offset } 1 {} {
                // to address
                mstore(0x04, calldataload(addressOffset))
                // amount
                mstore(0x24, calldataload(sub(addressOffset, diff)))
                // transfer the tokens
                if iszero(call(gas(), _token, 0, 0x00, 0x64, 0, 0)) { revert(0, 0) }
                // increment the address offset
                addressOffset := add(addressOffset, 0x20)
                // if addressOffset >= end, break
                if iszero(lt(addressOffset, end)) { break }
            }
        }
    }

    /// @notice Airdrop ETH to a list of addresses
    /// @param _addresses The addresses to airdrop to
    /// @param _amounts The amounts to airdrop
    function airdropETH(address[] calldata _addresses, uint256[] calldata _amounts) external payable {
        assembly {
            // Check that the number of addresses matches the number of amounts
            if iszero(eq(_amounts.length, _addresses.length)) { revert(0, 0) }

            // iterator
            let i := _addresses.offset
            // end of array
            let end := add(i, shl(5, _addresses.length))
            // diff = _addresses.offset - _amounts.offset
            let diff := sub(_amounts.offset, _addresses.offset)

            // Loop through the addresses
            for {} 1 {} {
                // transfer the ETH
                if iszero(call(gas(), calldataload(i), calldataload(add(i, diff)), 0x00, 0x00, 0x00, 0x00)) {
                    revert(0x00, 0x00)
                }
                // increment the iterator
                i := add(i, 0x20)
                // if i >= end, break
                if eq(end, i) { break }
            }
        }
    }
}

{
  "remappings": [
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "@solady/=lib/solady/",
    "@ERC721A/=lib/ERC721A/",
    "@murky/=lib/murky/src/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "ERC721A/=lib/ERC721A/contracts/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "murky/=lib/murky/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "solady/=lib/solady/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": false,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address[]","name":"_addresses","type":"address[]"},{"internalType":"uint256[]","name":"_amounts","type":"uint256[]"},{"internalType":"uint256","name":"_totalAmount","type":"uint256"}],"name":"airdropERC20","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_nft","type":"address"},{"internalType":"address[]","name":"_addresses","type":"address[]"},{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"airdropERC721","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_addresses","type":"address[]"},{"internalType":"uint256[]","name":"_amounts","type":"uint256[]"}],"name":"airdropETH","outputs":[],"stateMutability":"payable","type":"function"}]

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ipfs://95328c8caa91ab93a795758cc7e4f6abb851cb01a368fdb0bfab0bf76698445d